Parks Canada's water management team continues to actively monitor water levels and flows, and weather forecasts across the Trent-Severn Waterway. These factors are used to determine dam operations on a daily basis for the Trent-Severn Waterway.

For more information regarding watershed status, please visit your local conservation authority website:

For all other areas of the Trent and Severn Watersheds, please visit:

The Trent-Severn Waterway also maintains an email list for those wishing to have Water Management Updates sent directly to them via email.

If you would like to be added to our Water Management Update list to receive information as it becomes available, please email: Ont.TrentSevern@pc.gc.ca

April 19, 2018

Weather

The 5 day forecast suggests no precipitation. Air temperatures are forecasted to rise towards the end of the week with above 0°C at night in northern areas

Outlook

The recent event amounted to close to 100 mm of mixed precipitation and solid accumulation across the TSW watersheds resulting in increased flows and water levels at most locations. The current forecast indicates that water levels and outflows will continue to increase at most locations.

The Trent Severn Water Management team will be actively monitoring the changing conditions. Any watershed condition updates will be released by your Conservation Authority or local Ontario Ministry of Natural Resources district.

Ice on Shorelines

The temperature variations around the freezing mark makes ice weak along the shoreline which is then easily broken and moved by windy conditions. The areas subject to the greatest impact are those facing the primary wind direction. In the event of strong wind conditions the public should be aware of possible onshore ice movement leading to shoreline damage. The current forecast suggests that these conditions are probable if the winds are high. 

Haliburton and Northern Areas

The Halliburton’s reservoirs are below average and lake levels, increasing or levelling off. The snowpack increased as a result of the recent lower than normal seasonal temperatures and solid precipitation events. Lake levels are monitored daily and assessed in relation to estimated runoff amounts, however they are susceptible to changes in response to the future precipitation amounts. The flows on Gull River are on average and Burnt River are below the average for this time of the year.

Kawartha Lakes and the Otonabee River

The Kawartha Lakes are below average, levelling off or increasing. Scugog Lake levels are above average for this time of the year and increasing. Lower Buckhorn Lake levels are above average and levelling off. Flows on the Otonabee River are above average for this time of year and are increasing.

Rice Lake and the Lower Trent

Rice Lake water level is above average and increasing. Flows on the Lower Trent River are above average and increasing. 

Severn River

Lake Simcoe water levels are above average, above rule curve and increasing. Lake Simcoe outflows are maximized. Black River flows are below average. Flows on the Severn River are above average and are increasing. Operations for Lake St. John in preparation for increased flows on the Black River are complete. 

April 18, 2018

Weather

The 5 day forecast suggests low amounts of precipitation. Air temperatures are forecasted to rise towards the end of the week with above  0°C at night in northern areas

Outlook

The recent event amounted to close to 100 mm of mixed precipitation and solid accumulation across the TSW watersheds resulting in increased flows and water levels at most locations. The current forecast indicates that water levels and outflows will continue to increase at most locations.

The Trent Severn Water Management team will be actively monitoring the changing conditions. Any watershed condition updates will be released by your Conservation Authority or local Ontario Ministry of Natural Resources district.

Ice on Shorelines

The temperature variations around the freezing mark makes ice weak along the shoreline which is then easily broken and moved by windy conditions. The areas subject to the greatest impact are those facing the primary wind direction. In the event of strong wind conditions the public should be aware of possible onshore ice movement leading to shoreline damage. The current forecast suggests that these conditions are probable if the winds are high.  

Haliburton and Northern Areas

The Halliburton’s reservoirs are below average and lake levels, increasing or levelling off. The snowpack increased as a result of the recent lower than normal seasonal temperatures and solid precipitation events. Lake levels are monitored daily and assessed in relation to estimated runoff amounts, however they are susceptible to changes in response to the future precipitation amounts. The flows on Gull River are on average and Burnt River are below the average for this time of the year.

Kawartha Lakes and the Otonabee River

The Kawartha Lakes are below average, levelling off or increasing. Lower Buckhorn Lake and Scugog Lake levels are above average for this time of the year and increasing.  Flows on the Otonabee River are above average for this time of year and are increasing.

Rice Lake and the Lower Trent

Rice Lake water level is above average and increasing. Flows on the Lower Trent River are above average and increasing.

Severn River

Lake Simcoe water levels are above average, above rule curve and increasing. Lake Simcoe outflows are maximized. Black River flows are below average and increasing. Flows on the Severn River are above average and are increasing. Operations for Lake St. John in preparation for increased flows on the Black River are complete.

April 17, 2018

Weather

The 7 day forecast suggests small amounts of precipitation reaching 5 mm of rain. Air temperatures are forecasted to rise towards the end of the week with above 0°C at night in northern areas

Outlook

The recent event amounted to close to 100 mm of mixed precipitation and solid accumulation across the TSW watersheds resulting in increased flows and water levels at most locations. The current forecast indicates that water levels and outflows will continue to increase at most locations.

The Trent Severn Water Management team will be actively monitoring the changing conditions. Any watershed condition updates will be released by your Conservation Authority or local Ontario Ministry of Natural Resources district.

Ice on Shorelines

The temperature variations around the freezing mark makes ice weak along the shoreline which is then easily broken and moved by windy conditions. The areas subject to the greatest impact are those facing the primary wind direction. In the event of strong wind conditions the public should be aware of possible onshore ice movement leading to shoreline damage. The current forecast suggests that these conditions are probable if the winds are high. 

Haliburton and Northern Areas

The Halliburton’s reservoirs are below average and lake levels are increasing. The snowpack increased as a result of the recent lower than normal seasonal temperatures and solid precipitation events. Lake levels are monitored daily and assessed in relation to estimated runoff amounts, however they are susceptible to changes in response to the future precipitation amounts. The flows on Gull River ate on average and Burnt River are below the average for this time of the year. 

Kawartha Lakes and the Otonabee River

The Kawartha Lakes are below average, levelling off or increasing. Lower Buckhorn Lake and Scugog Lake levels are above average for this time of the year and increasing. Flows on the Otonabee River are above average for this time of year and are increasing.

Rice Lake and the Lower Trent

Rice Lake water level is above average and increasing. Flows on the Lower Trent River are above average and increasing. 

Severn River

Lake Simcoe water levels are above average, above rule curve and increasing. Lake Simcoe outflows are maximized. Flows on the Severn River are on the average and are increasing. Operations for Lake St. John in preparation for increased flows on the Black River are complete. 

April 16, 2018

Weather

The 2 day forecast suggests additional amounts of precipitation reaching 25 mm of rain. Air temperatures are forecasted to rise towards the end of the week with above 0°C at night in northern areas

Outlook

The recent precipitation event amounted to 80 mm with some solid accumulation across the TSW watersheds resulting in increased flows and water levels at most locations. The current forecast indicates that water levels and outflows will continue to increase at most locations. 

The Trent Severn Water Management team will be actively monitoring the changing conditions. Any watershed condition updates will be released by your Conservation Authority or local Ontario Ministry of Natural Resources district.

Ice on Shorelines

The temperature variations around the freezing mark makes ice weak along the shoreline which is then easily broken and moved by windy conditions. The areas subject to the greatest impact are those facing the primary wind direction. In the event of strong wind conditions the public should be aware of possible onshore ice movement leading to shoreline damage. The current forecast suggests that these conditions are probable if the winds are high.  

Haliburton and Northern Areas

The Halliburton’s reservoirs are below average and lake levels are increasing. The snowpack increased as a result of the recent lower than normal seasonal temperatures and solid precipitation events. Lake levels are monitored daily and assessed in relation to estimated runoff amounts, however they are susceptible to changes in response to the future precipitation amounts. The flows on Gull and Burnt Rivers are below the average for this time of the year.

Kawartha Lakes and the Otonabee River

The Kawartha Lakes are all below average, levelling off or increasing. Scugog Lake levels are on average for this time of the year and increasing.  Flows on the Otonabee River are above average for this time of year and are increasing.

Rice Lake and the Lower Trent

Rice Lake water level is below average and increasing. Flows on the Lower Trent River are above average and increasing.

Severn River

Lake Simcoe water levels are above average and above rule curve. Lake Simcoe outflows are maximized. Flows on the Severn River are on the average and are increasing. Operations for Lake St. John in preparation for increased flows on the Black River are complete.

April 13, 2018

Weather

The 5 day forecast suggests significant amounts of precipitation reaching 100 mm of rain and with mixed precipitation and below 0°C at night in northern areas

Outlook

The recent rain amounted to an average of 10 mm of precipitation across the TSW watersheds resulting in increased flows and water levels at most locations. The current forecast indicates that water levels and outflows will continue to increase at most locations. 

The Trent Severn Water Management team will be actively monitoring the changing conditions. Any watershed condition updates will be released by your Conservation Authority or local Ontario Ministry of Natural Resources district.

Ice on Shorelines

The temperature variations around the freezing mark makes ice weak along the shoreline which is then easily broken and moved by windy conditions. The areas subject to the greatest impact are those facing the primary wind direction. In the event of strong wind conditions the public should be aware of possible onshore ice movement leading to shoreline damage. The current forecast suggests that these conditions are probable if the winds are high. 

Haliburton and Northern Areas

The Halliburton’s reservoirs are below average. The snowpack remains as a result of the recent lower than normal seasonal temperatures and solid precipitation events. Lake levels are monitored daily and assessed in relation to estimated runoff amounts, however they are susceptible to changes in response to the future precipitation amounts. The flows on Gull and Burnt Rivers are below the average for this time of the year.

Kawartha Lakes and the Otonabee River

The Kawartha Lakes are all below average and declining. Flows on the Otonabee River are on average for this time of year and are increasing.

Rice Lake and the Lower Trent

Rice Lake water level is below average and increasing. Flows on the Lower Trent River are below average and increasing. 

Severn River

Lake Simcoe water levels are on average and below rule curve. Lake Simcoe outflows are maximized. Flows on the Severn River are close to the average and are increasing. Operations for Lake St. John in preparation for increased flows on the Black River are complete. 

April 12, 2018

Weather

The 7 day forecast suggests significant amounts of precipitation reaching 90 mm of rain and with mixed precipitation and below 0°C at night in northern areas

Outlook

The recent snow and rain amounted to an average of 25 mm of precipitation across the TSW watersheds resulting in increased flows and water levels at most locations. The current forecast indicates that water levels and outflows will continue to increase at most locations. 

The Trent Severn Water Management team will be actively monitoring the changing conditions. Any watershed condition updates will be released by your Conservation Authority or local Ontario Ministry of Natural Resources district.

Ice on Shorelines

The temperature variations around the freezing mark makes ice weak along the shoreline which is then easily broken and moved by windy conditions. The areas subject to the greatest impact are those facing the primary wind direction. In the event of strong wind conditions the public should be aware of possible onshore ice movement leading to shoreline damage. The current forecast suggests that these conditions are probable if the winds are high. 

Haliburton and Northern Areas

The Halliburton’s reservoirs are below average. The snowpack remains as a result of the recent lower than normal seasonal temperatures and solid precipitation events. Lake levels are monitored daily and assessed in relation to estimated runoff amounts, however they are susceptible to changes in response to the future precipitation amounts. The flows on Gull and Burnt Rivers are below the average for this time of the year.

Kawartha Lakes and the Otonabee River

The Kawartha Lakes are about average with the exception of Buckhorn and Stony Lake which are below average; lakes are levelling or beginning to decline. Flows on the Otonabee River are below the average for this time of year and are increasing.

Rice Lake and the Lower Trent

Rice Lake water level is below average and declining. Flows on the Lower Trent River are below average and increasing.

Severn River

Lake Simcoe water levels are on average and below rule curve. Lake Simcoe outflows are maximized. Flows on the Severn River are below the average and are increasing. Operations for Lake St. John in preparation for increased flows on the Black River are complete.

April 9, 2018

Weather

The 7 day forecast suggests various amounts of precipitation ranging from 25 to 60 mm of rain and air temperatures close to 0°C at night in northern areas

Outlook

The recent snow and rain amounted to an average of 25 mm of precipitation across the TSW watersheds resulting in increased flows and water levels at most locations. The current forecast indicates that water levels and outflows will continue to increase at most locations.

The Trent Severn Water Management team will be actively monitoring the changing conditions. Any watershed condition updates will be released by your Conservation Authority or local Ontario Ministry of Natural Resources district.

Ice on Shorelines

The temperature variations around the freezing mark makes ice weak along the shoreline which is then easily broken and moved by windy conditions. The areas subject to the greatest impact are those facing the primary wind direction. In the event of strong wind conditions the public should be aware of possible onshore ice movement leading to shoreline damage. The current forecast suggests that these conditions are probable if the winds are high.

Haliburton and Northern Areas 

The Halliburton’s reservoirs are below average and are levelling off. Due to the remaining snowpack and below normal precipitation in the month of March and the early part of April, the outflows are reduced from the reservoirs based on the projected snowmelt runoff. The flows on Gull and Burnt Rivers are below the average for this time of the year.

Kawartha Lakes and the Otonabee River

The Kawartha Lakes are about average with the exception of Buckhorn and Stony Lake which are below average; lakes are levelling or beginning to decline. Flows on the Otonabee River are below the average for this time of year and are increasing.

Rice Lake and the Lower Trent

Rice Lake water level is close to average and declining. Flows on the Lower Trent River are below average and increasing.

Severn River

Lake Simcoe water levels are on average and below rule curve. Lake Simcoe outflows are reduced. Flows on the Severn River are below the average and are levelling off. Operations for Lake St. John in preparation for increased flows on Black River are complete.

April 3, 2018

Weather

The total amounts of precipitation in March have been less than normal resulting in lower than average snow pack for this time of the year. The 7 day forecast suggests various amounts of precipitation ranging from 14 to 23 mm of rain and temperatures below 0°C at night in northern areas

Outlook

The current conditions indicate that water levels and outflows will increase at most locations.

The Trent Severn Water Management team will be actively monitoring the changing conditions. Any watershed condition updates will be released by your Conservation Authority or local Ontario Ministry of Natural Resources district.

Haliburton and Northern Areas 

The Haliburton’s reservoirs are below average and are increasing. The present snowpack is below the average for this time of year. 

Kawartha Lakes and the Otonabee River

The Kawartha Lakes are in general above average with the exception of Buckhorn Lake and are increasing. Flows on the Otonabee River are lower than average for this time of year.‎

Rice Lake and the Lower Trent

Rice Lake water level is close to average. Flows on the Lower Trent River are below average and are increasing. 

Severn River

Lake Simcoe water levels are above average and close to the rule curve. Lake Simcoe outflows may be reduced depending on the response of the Black River. Flows on the Black River are increasing. Flows on the Severn River are close to average and are increasing. Operations for Lake St. John in preparation for increased flows on Black River are ongoing. 

March 26, 2018

Weather

The total amounts of precipitation in March have been less than normal resulting in lower than average snow pack for this time of the year. The 7 day forecast suggests various amounts of precipitation ranging from 14 to 23 mm of rain and temperatures below 0°C at night in northern areas.

Outlook

The current conditions indicate that water levels and outflows will continue to decline at most locations.

The Trent Severn Water Management team will be actively monitoring the changing conditions. Any watershed condition updates will be released by your Conservation Authority or local Ontario Ministry of Natural Resources district. 

Haliburton and Northern Areas 

The Halliburton’s reservoirs are below average and are levelling off. The present snowpack is 50 percent of the average for this time of year. Due to the reduced snowpack and below normal precipitation in the month of March, ongoing water operations are reducing the outflows from the reservoirs based on the remaining projected snowmelt runoff. 

Kawartha Lakes and the Otonabee River

The Kawartha Lakes are below or close to average and are levelling off. Flows on the Otonabee River are below average for this time of year and declining.

Rice Lake and the Lower Trent

Rice Lake water level is close to average and levelling off. Flows on the Lower Trent River are below average and declining. 

Severn River

Lake Simcoe water levels are above average and close to the rule curve. Lake Simcoe outflows are reduced. Flows on the Severn River are close to average and are declining. 

March 19, 2018

Weather

Since late February precipitation amounts have been less than normal resulting in lower than average snow pack for this time of the year. The 14 day forecast suggest dry conditions will continue with temperatures below average and staying below 0°C overnight.

Outlook

The current conditions indicate that water levels and outflows will continue to decline at most locations.

The Trent Severn Water Management team will be actively monitoring the changing conditions. Any watershed condition updates will be released by your Conservation Authority or local Ontario Ministry of Natural Resources district. 

Haliburton and Northern Areas 

The Halliburton’s reservoirs are below average and continue on a slow decline. The snowpack is present and and is about 50 percent of average. The current water management operations for filling the reservoirs have begun to reduce the outflows from the reservoirs based on the projected runoff from melting snow in the watershed and below normal precipitation in the month of March. 

Kawartha Lakes and the Otonabee River

The Kawartha Lakes are below or close to average and are levelling off. Flows on the Otonabee River are below average for this time of year and declining.

Rice Lake and the Lower Trent

Rice Lake water level is close to average and levelling off. Flows on the Lower Trent River are below average and declining. 

Severn River

Lake Simcoe water levels are above average but quickly approaching rule curve. Lake Simcoe outflows will be reduced. Flows on the Severn River are close to average and are declining. 

February 26, 2018

Weather

The weather forecast is predicting no significant precipitation events over the next 7 days but with positive day temperatures and below 0°C at night.

Outlook

Due to the significant total amounts of rain and localized snowmelt, water levels and outflows continue to increase. The snowpack is below average for this time of the year. The current warm temperatures indicate that the trend in water levels and outflows will be sustained. 

The Trent Severn Water Management team will be actively monitoring the changing conditions. Any watershed condition updates will be released by your Conservation Authority or local Ontario Ministry of Natural Resources district. 

Haliburton and Northern Areas 

Water levels on the reservoir lakes are above average and continue to increase. Flows on the Gull River and the Burnt River are above average for this time of the year. Central lakes are above their average and continue to increase. 

Kawartha Lakes and the Otonabee River

Kawartha Lakes are above the average water levels and continue to increase. Flows on the Otonabee River are higher than average for this time of year and increasing. 

Rice Lake and the Lower Trent

Rice Lake water level is above average and leveling off. Flows on the Lower Trent River are above average. 

Severn River

Lake Simcoe is above the long term average water level and levelling off. Lake Simcoe outflows may be reduced depending on the response of the Black River. Flows on the Black River are increasing. Flows on the Severn River are above average and are increasing. 

February 23, 2018

Weather

The weather forecast is predicting an additional 5 mm precipitation event over the next 36 hours with positive day temperatures and below 0°C at night.

Outlook

Due to the recent weather conditions, significant total amounts of rain have resulted in local snowmelt with localized impact on the watersheds. The current conditions indicate that water levels and outflows will continue to increase at most locations.

The Trent Severn Water Management team will be actively monitoring the changing conditions. Any watershed condition updates will be released by your Conservation Authority or local Ontario Ministry of Natural Resources district. 

Haliburton and Northern Areas 

Water levels on the reservoir lakes are close to average and continue to increase. Flows on the Gull River and the Burnt River are expected to peak soon. 

Kawartha Lakes and the Otonabee River

Kawartha Lakes are above the average water levels and continue to increase. Flows on the Otonabee River are higher than average for this time of year and increasing. 

Rice Lake and the Lower Trent

Rice Lake water level is above average and continues to increase. Flows on the Lower Trent River are above average and increasing. 

Severn River

Lake Simcoe is above the long term average water level and increasing. Lake Simcoe outflows may be reduced depending on the response of the Black River. Flows on the Black River are increasing and are expected to peak soon. Flows on the Severn River are above average and are increasing. 

February 22, 2018

Weather

The rainfall occurring over the past 3 days resulted in total precipitation amounts ranging from 35-40 mm. The weather forecast is predicting an additional 5 mm precipitation event over the next 36 hours with positive day temperatures and below 0°C at night.

Outlook

Due to the recent weather conditions, significant total amounts of rain have resulted in local snowmelt with localized impact on the watersheds. The current conditions indicate that water levels and outflows will continue to increase at most locations. The Trent Severn Water Management team will be actively monitoring the changing conditions. Any watershed condition updates will be released by your Conservation Authority or local Ontario Ministry of Natural Resources district. 

Haliburton and Northern Areas 

Water levels on the reservoir lakes are close to average and continue to increase. Flows on the Gull River and the Burnt River are expected to peak soon. 

Kawartha Lakes and the Otonabee River

Kawartha Lakes are close to or above the average water levels and continue to increase. Flows on the Otonabee River are higher than average for this time of year and increasing.

Rice Lake and the Lower Trent

Rice Lake water level is above average and continues to increase. Flows on the Lower Trent River are above average and increasing.

Severn River

Lake Simcoe is above the long term average water level and increasing. Lake Simcoe outflows may be reduced depending on the response of the Black River. Flows on the Black River are increasing and are expected to peak soon. Flows on the Severn River are above average and are increasing. 

February 21, 2018

Weather

The rainfall occurring over past 24 hours resulted in total precipitation amounts ranging from 25-35 mm. The weather forecast is predicting an additional 5 mm precipitation event on Wednesday with day time temperatures declining and staying below 0°C at night. Additional small of amounts of rain and snow are forecasted over the next few days. 

Outlook

Due to the recent weather conditions, significant total amounts of rain of 30-40 mm have resulted in local snowmelt with localised impact on the watersheds. The current conditions indicate that water levels and outflows will continue to increase at most locations. The Trent Severn Water Management team will be actively monitoring the changing conditions. Any watershed condition updates will be released by your Conservation Authority or local Ontario Ministry of Natural Resources district. 

Haliburton and Northern Areas 

Water levels on the reservoir lakes are close to average and continue to increase. Flows on the Gull River are above average and are expected to increase. Flows on the Burnt River are above average and continue to increase.

Kawartha Lakes and the Otonabee River

Kawartha Lakes are close to average and continue to increase. Flows on the Otonabee River are higher than average for this time of year and increasing.

Rice Lake and the Lower Trent

Rice Lake water level is above average and continues to increase. Flows on the Lower Trent River are above average and increasing.

Severn River

Lake Simcoe is above the long term average water level and increasing. Flows on the Black River and the Severn River are above average and are increasing. Lake Simcoe outflows may be reduced depending on the response of the Black River to the warmer temperatures and rainfall. Operations for Lake St. John in preparation for increased flows on Black River are complete.

February 20, 2018

Weather

The rainfall over past 24 hours resulted in total precipitation amounts ranging from 10-15 mm. The weather forecast is predicting an additional 20 to 30 mm of precipitation through Tuesday and Wednesday with day time temperatures reaching double digits and remaining above 0°C at night.

Outlook

The current forecast may result in local snowmelt and snowmelt runoff greatly impacting the watershed response. The current forecast indicates that water levels and outflows will increase at most locations. The Trent Severn Water Management team will be actively monitoring the changing conditions. Any watershed condition updates will be released by your Conservation Authority or local Ontario Ministry of Natural Resources district. 

Haliburton and Northern Areas 

Water levels on the lakes in general are below average and are increasing. Flows on the Gull River and on the Burnt River are above average and are expected to increase. 

Kawartha Lakes and the Otonabee River

Kawartha Lakes are below average and are increasing. Flows on the Otonabee River are higher than average for this time of year and increasing. 

Rice Lake and the Lower Trent

Rice Lake water level is on average and levelling off. Flows on the Lower Trent River are above average and increasing. 

Severn River

Lake Simcoe is above the long term average water level. Flows on the Black River and the Severn River are above average and expected to increase. Lake Simcoe outflows may be reduced depending on the response of the Black River to the warmer temperatures and rainfall. Current operations for Lake St. John are happening in preparation for increased flows on Black River. 

February 19, 2018

Weather

The weather forecast for early this week has been confirmed for a 50 to 60 mm precipitation event across Monday, Tuesday and Wednesday with day time temperatures reaching double digits and remaining above 0°C at night. 

Outlook

The current forecast may result in local snowmelt and snowmelt runoff greatly impacting the watershed response. The current forecast indicates that water levels and outflows will increase at most locations. The Trent Severn Water Management team will be actively monitoring the changing conditions. Any watershed condition updates will be released by your Conservation Authority or local Ontario Ministry of Natural Resources district. 

Haliburton and Northern Areas 

All reservoir lakes remain at their respective winter set dam configuration. Water levels on the lakes in general are below average. Flows on the Gull River and on the Burnt River are above average are expected to increase. 

Kawartha Lakes and the Otonabee River

Kawartha Lakes are below average, declining and are subject to winter drawdown. Flows on the Otonabee River are higher than average for this time of year and expected to increase

Rice Lake and the Lower Trent

Rice Lake water level is on average and declining. Flows on the Lower Trent River are above average and are expected to increase.

Severn River

Lake Simcoe is above the long term average water level. Flows on the Black River and the Severn River are above average. Lake Simcoe outflows may be reduced depending on the response of the Black River to the warmer temperatures and rainfall. Current operations for Lake St. John are happening in preparation for increased flows on Black River. 

February 16, 2018

Weather

The weather forecast for early next week is changing significantly from day to day. A 30 to 45 mm precipitation event is forecasted across Monday, Tuesday and Wednesday with day time temperatures reaching double digits and remaining above 0 C at night..

Outlook

Depending on the amounts of rain across the areas local snow melt and snow melt runoff will occur greatly impacting the watershed response. The current forecast that water levels and outflows will increase at most locations. Trent Severn Water Management team will be active and the changing conditions will be closely monitored. Any watershed conditions updates will be released by your Conservation Authority or local Ontario Ministry of Natural Resources district. 

Haliburton and Northern Areas 

All reservoir lakes remain at their respective winter set dam configuration. Water levels on the lakes in general are below average. Flows on the Gull River and on the Burnt River are above average. 

Kawartha Lakes and the Otonabee River

Kawartha Lakes are below average, declining and are subject to winter drawdown. Flows on the Otonabee River are higher than average for this time of year. 

Rice Lake and the Lower Trent

Rice Lake water level is on average and is leveling off. Flows on the Lower Trent River are above average .

Severn River

Lake Simcoe is above the long term average water level. Flows on the Black River and the Severn River are above average. Outflows from Lake Simcoe are high and will remain so over the weekend. Lake Simcoe Outflows may be reduced depending on the response of the Black River to the warmer temperatures and rainfall. Operations for Lake St. John will also be determined based on the reaction of the Black River. 

January 19, 2018

Weather

The weather forecast for early next week is changing significantly from day to day. A 15 to 20 mm precipitation event is forecasted across Monday and Tuesday; it is unclear at this time with the changing forecast if the precipitation will be rain or snow.

Outlook

Depending if the event happens as rain or snow will greatly impact the watershed response. If it comes as rain, lake levels and flows will increase; if it comes as snow it is likely that lake levels and flows will stabilise and begin to decrease. Trent Severn Water Management team will be active and the changing conditions will be closely monitored. 
Any watershed conditions updates will be released by your Conservation Authority or local Ontario Ministry of Natural Resources district.  

Haliburton and Northern Areas 

All reservoir lakes remain at their respective winter set dam configuration. Water levels on the lakes in general are slightly above average and are beginning to level out. Flows on the Gull River are slightly above average, while flows on the Burnt River are above average. 

Kawartha Lakes and the Otonabee River

After the snow melt and rainfall of last week most of the Kawartha Lakes are above average; water levels on the Kawartha Lakes have peaked and are beginning to decline. Flows on the Otonabee River are higher than average for this time of year. 

Rice Lake and the Lower Trent

Rice Lake water level is below long term average and is levelling off. Flows on the Lower Trent River are above average and are beginning to decline. 

Severn River

Lake Simcoe is near the long term average water level. Flows on the Black River are above average. Flows on the Severn River are about average. 

January 10, 2018

Weather

Varying amounts of rainfall ranging from 20 to 40 mm are forecasted for the 11th and 12 of January.  The higher rainfall amounts are forecasted in the Haliburton and northern Black River area.

Haliburton and Northern Areas

All reservoir lakes are at their respective winter set dam configuration.  Water levels on the reservoir lakes are near the long term average.  The recent very cold weather has resulted in a gradual decline in river flows.

Kawartha Lakes and the Otonabee River

The Kawartha Lakes levels are in general below average and the drawdown is underway in preparation for the spring freshet.  The Otonabee River flows are below average for this time of year. 

Rice Lake and the Lower Trent

Rice Lake water level is near long term average as are flows on the Lower Trent River.  

Severn River

Lake Simcoe is tracking well to the target water level for this time of year.  Flows on the Black River have been gradually receding with the cold weather.  Flows on the Severn River are below average.  

October 2, 2017

Weather

The forecasted weather for this week calls for approximately 15-20 mm of rainfall across the Trent River and Severn River watersheds. The seasonal forecast suggests about above normal temperatures and normal precipitation from October until December for the Trent-Severn Waterway.

Haliburton and Northern Areas

Winter set is achieved every year by the beginning of October to facilitate the Lake Trout spawn.

Winter set has been reached at all dams with the exception of Horseshoe, which is below winter set due to higher than normal flows for this time of year in the Gull River. The move to winter set at this location will be completed as flows decrease.

The Gull River reservoirs are now 51% full and the Burnt Reservoirs are 48% full. The Central Reservoirs are 55% full.

Kawartha Lakes and the Otonabee River

The Kawartha Lakes are near average levels for this time of year. The river reaches are being held at navigable levels.

Rice Lake and the Lower Trent

Rice Lake is slightly above average for this time of year and the Lower Trent is being held at navigable levels.

Severn River

Lake Simcoe water levels are near average for this time of year and the Severn River sections are being held at navigable levels. Drawdown at Lake Simcoe will continue towards target levels.

July 17, 2017

Water flows and water levels are high across the Trent-Severn Waterway - please exercise caution on the water.

Weather

Due to the significant rainfall over the past week ranging from 20–70 mm, lakes across the Trent-Severn are full or overfull. No significant rainfall is forecasted for this week. Soil conditions across the watershed are saturated. Please check the website of your local conservation authority or the Ontario Ministry of Natural Resources and Forestry for the most up to date watershed conditions. The long term forecast suggests thunder-showers.

Haliburton and Northern Areas

The Gull River, Burnt River and Central Lakes are full. Flows on the Gull River and Burnt river are high and will remain high. Please exercise caution when travelling on or near rivers and around dams.

Kawartha Lakes and the Otonabee River

The Kawartha Lakes levels are above average. The Otonabee River flow is high and will remain high. The Otonabee River is within navigable range however residents are advised to exercise caution when travelling on the river, especially near dams.

Rice Lake and the Lower Trent

Rice Lake water level is high and will remain high. Lower Trent levels and flows are high. Flows on the Trent River below Healey Falls will increase during the night in order to reduce the high water levels upstream - therefore residents are advised to exercise caution if travelling outside Parks Canada hours of operation. Please exercise caution when travelling on or near rivers and around dams.

Severn River

Lake Simcoe is high and will remain high. Flows will remain high on the Severn River. Please exercise caution when travelling on or near rivers and around dams.

Hours of Operation

June 23 to September 4

  • Monday to Thursday: 9:00 a.m. – 6:00 p.m.
  • Friday to Sunday, plus August Civic Holiday and Labour Day: 9:00 a.m. – 7:00 p.m.
July 10, 2017

Weather

Some rainfall forecast is expected through the week with a potential accumulation of 10-20 mm and higher in the areas of localized thunderstorm activity. Reservoir lakes are near full. Please check the website of your local conservation authority or the Ontario Ministry of Natural Resources and Forestry for the most up to date watershed conditions.

Haliburton and Northern Areas

Levels on the Gull, Burnt and Central Lakes remain above average. Flows on the Gull and the Burnt remain high. Please exercise caution when travelling on or near rivers and around dams.

Kawartha Lakes and the Otonabee River

The Kawartha Lakes levels are above average. The Otonabee River is navigable however flow is high. Caution should be exercised on or near the river and especially near dams.

Rice Lake and the Lower Trent

Water levels on Rice Lake and the Lower Trent are above average. The Lower Trent is navigable however flow is high. Caution should be exercised on or near the river and especially near dams.

Severn River

Lake Simcoe is still above average and the Severn River flows remain high. Please exercise caution when travelling on or near the river and around dams.

June 29, 2017

Water flows and water levels are high across the Trent-Severn Waterway please exercise caution on the water.

Weather

Significant rainfall forecast is expected today and through the weekend with potentially 20-40 mm accumulating across the Trent-Severn Waterway. Soil conditions across the watershed are saturated and lakes are full. Please check the website of your local conservation authority or the Ontario Ministry of Natural Resources and Forestry for the most up to date watershed conditions.

Haliburton and Northern Areas

Levels on the Gull River, Burnt River and Central Lakes are above average and expected to increase with the forecasted rainfall. Flows on the Gull River will increase and flows on the Burnt River are expected to increase with the forecasted rain.

Kawartha Lakes and the Otonabee River

The Kawartha Lakes levels are above average and are expected to increase based on the amount of rain forecasted. The Otonabee River is navigable however flow is high and will remain high. Caution should be exercised on or near the river and especially near dams.

Rice Lake and the Lower Trent

Water levels on Rice Lake and the Lower Trent are high and are expected to increase with the forecasted rain. The Lower Trent is navigable however flow is high and will remain high. Caution should be exercised on or near the river and especially near dams.

Severn River

Lake Simcoe is high and with the rain forecast it is expected to increase. Black River flow is expected to increase due to the forecasted rain. Flows will remain high on the Severn River. Please exercise caution when travelling on the River and around dams.

Navigation Outside of Operation Hours

Please exercise caution when travelling on the River and around dams. Flows at Swift Rapids, along the Otonabee River and the Lower Trent will increase during the night to continue to reduce levels and flows. Residents are advised to exercise caution if travelling outside Parks Canada hours of operation.

Hours of Operation

June 23 to September 4

  • Monday to Thursday: 9:00 a.m. – 6:00 p.m.
  • Friday to Sunday, plus Canada Day (Monday), August Civic Holiday and Labour Day: 9:00 a.m. – 7:00 p.m.
June 23, 2017

Weather

In addition to recent rainfall and the expected rainfall today of 15-25 mm across the Trent-Severn Watershed, another 5-15 mm is forecasted for Sunday. Soil conditions across the watershed are saturated and lakes are full. Please check the website of your local conservation authority or the Ontario Ministry of Natural Resources and Forestry for the most up to date watershed conditions. The long-term weather forecast suggests that further rain due to thunderstorms across Trent-Severn next week.

Haliburton and Northern Areas

The Gull and Burnt Lakes are full to slightly overfull due to the recent rain. Flows on the Gull are high and are expected to remain high with the forecasted rain. The Burnt River flow is declining but with the amount of rain forecasted it is expected increase. The Central Lakes are high due the rain received overnight and will remain high based on the forecast.

Kawartha Lakes and the Otonabee River

The Kawartha Lakes levels are above average and are expected to increase based on the amount of rain forecasted. The Otonabee River flow is high and is expected to remain high. Operations are moving the maximum amount of water through the system to maintain navigable levels. The river is navigable however residents are advised to exercise caution when travelling.

Rice Lake and the Lower Trent

Rice Lake water level is high and is expected to increase with the forecasted rain. Lower Trent flows are elevated due to rain.

Severn River

Lake Simcoe is high and with the rain forecast it is expected to increase. The Black River flow is increasing due to recent rainfall and is expected to continue increasing with the forecasted rain. Flows are high on the Severn River. Flows at Swift Rapids will increase during the night to continue to reduce the level on Sparrow Lake therefore residents are advised to exercise caution if travelling outside Parks Canada hours of operation.

Hours of Operation

May 19 to June 22

  • Monday to Thursday: 10:00 a.m. – 4:00 p.m.
  • Friday to Sunday: 9:00 a.m. – 7:00 p.m.

June 23 to Sept 4

  • Monday to Thursday: 9:00 a.m. – 6:00 p.m.
  • Friday to Sunday, plus Canada Day, August Civic Holiday and Labour Day: 9:00 a.m. – 7:00 p.m.
June 21, 2017

Weather

Significant rainfall occurred over this past weekend and into Monday in the Severn area and resulted in total precipitation over that time period of about 95 mm which increased water levels and flows on the Severn River. Comparatively average rainfall for the entire month of June in the Severn area is 85 mm. From Saturday to Monday 30-50 mm of rain fell in the Haliburton area, 10-15 mm in the Peterborough area and 10-30 mm in the Rice Lake and Trenton area. Please check the website of your local conservation authority or the Ontario Ministry of Natural Resources and Forestry for the most up to date watershed conditions. The weather forecast suggests that there is a risk of thunderstorms towards the end of the week across Trent-Severn.

Haliburton and Northern Areas

The Gull, Burnt and Central Lakes are full to slightly overfull due to the recent rain. Flows on the Gull have peaked and will remain at current levels. The Burnt River has peaked and is declining.

Kawartha Lakes and the Otonabee River

The Kawartha Lakes levels are above average. The Otonabee River flow is higher than normal and will remain high due to the recent rain.

Rice Lake and the Lower Trent

Rice Lake is above average. Lower Trent flows are elevated due to rain.

Severn River

The Black River flow has crested but water levels and flows are high on the Severn River and will remain high until water levels decrease on Lake Simcoe and Sparrow Lake. Flows at Swift Rapids will increase during the night to reduce the level on Sparrow Lake therefore residents are advised to exercise caution if travelling outside Parks Canada hours of operation.

Hours of Operation

May 19 to June 22

  • Monday to Thursday: 10:00 a.m. – 4:00 p.m.
  • Friday to Sunday: 9:00 a.m. – 7:00 p.m.

June 23 to September 4

  • Monday to Thursday: 9:00 a.m. – 6:00 p.m.
  • Friday to Sunday, plus Canada Day, August Civic Holiday and Labour Day: 9:00 a.m. – 7:00 p.m.
May 18, 2017

Weather

Significant rainfall occurring over April 28 to May 6 resulted in total precipitation amounts ranging from 85-160 mm during that period which increased water levels and flows across the Trent-Severn Waterway. Historical average rainfall for the entire month of May across the Trent-Severn ranges from 80-100 mm. Please check the website of your local conservation authority or the Ontario Ministry of Natural Resources and Forestry for the most up to date watershed conditions. The weather forecast suggests that there is a risk of thunderstorms towards the end of the week and rain on the weekend.

Haliburton and Northern Areas

After a wetter than normal April (100-125 mm of rain fell versus the monthly average of 76 mm) the Haliburton area received a significant amount of rainfall (100-125mm) during the first week of May. Comparatively the average precipitation amount for the entire month of May in Haliburton is 93 mm. Consequently the Gull and Burnt River Reservoir Lakes are full or overfull. The Gull and Burnt rivers have recently peaked. Lake levels have begun to decline. Central Lakes are full or overfull.

Kawartha Lakes and the Otonabee River

The Kawartha Lakes levels are overfull. Levels have started to decline and will continue to do so as flows decrease on the Gull and Burnt rivers. The Otonabee River flow will continue to decrease.

Rice Lake and the Lower Trent

Rice Lake is overfull but it has peaked and levels will decline as flows from the Otonabee decrease. Lower Trent levels will decrease as well.

Severn River

The Black River flow has peaked. Water levels and flows are high on the Severn River and will remain high as water is released from Lake Simcoe. Dam operations are complete at Lake St. John to prevent backflow.

May 10, 2017

Weather

Significant rainfall over the last week (April 28 to May 6) has resulted in total precipitation amounts ranging from 85-160 mm over that time period which have increased water levels and flows across the Trent-Severn Waterway. Comparatively average rainfall for the entire month of May across the Trent-Severn ranges from 80-100 mm. Please check the website of your local conservation authority or the Ontario Ministry of Natural Resources and Forestry for the most up to date watershed conditions. The weather forecast suggests that there will be no significant amounts of rain this week.

Haliburton and Northern Areas

After a wetter than normal April in the Haliburton area, with 100-125 mm of rain falling versus the monthly average of 76 mm, the Haliburton area received significant rainfall during the first week of May totalling a further 100-125 mm. Comparatively the average precipitation amount for the entire month of May in Haliburton is 93 mm. Subsequently the Gull and Burnt River Reservoir Lakes are full or overfull. Gull and Burnt River flows will continue to increase and lakes will continue to rise. There will be reduced inflows today at Twelve Mile and Horseshoe Dam. Central Lakes are full or overfull.

Kawartha Lakes and the Otonabee River

The Kawartha Lakes levels are overfull and will continue to increase due to the high flows from the Gull and Burnt rivers. The Otonabee River flow will continue to increase.

Rice Lake and the Lower Trent

Rice Lake is overfull and will continue to rise due to increased flow on the Otonabee. Lower Trent will increase as well.

Severn River

The Black River flow has peaked. Water levels and flows are high on the Severn River and will remain high as water will be released from Lake Simcoe as Black River flows decline. Dam operations are complete at Lake St. John to prevent backflow.

May 5, 2017

People can visit Flood Ready web site for more information on general flood preparation. Locally, people are encouraged to contact their local municipal offices for any assistance they can provide with regard to flood mitigation; i.e. emergency services, sand bags, etc.

Weather

Rainfall over the last week of April combined with a significant rainfall event early this week have resulted in total precipitation amounts ranging from 50-100 mm over that time period which have increased water levels and flows across the Trent-Severn Waterway. Currently Environment Canada has issued a Public Weather Alert for Southern Ontario as another rain event, that began on Thursday and will continue into the weekend, will bring an additional 40-70 mm to the area. Comparatively average rainfall for the entire month of May across the Trent-Severn ranges from 80-100 mm. Environment Canada warns that "with the ground already saturated there is potential for local flooding". Please check the website of your local conservation authority or the Ontario Ministry of Natural Resources and Forestry for the most up to date watershed conditions.

Haliburton and Northern Areas

After receiving 10-25 mm of rain at the end of April, the Haliburton area received significant rainfall in the first three days of May totalling 50-70 mm. Comparatively the average precipitation amount for the entire month of May in Haliburton is 93 mm. Subsequently the Gull and Burnt River Reservoir Lakes are full or overfull and levels will continue to increase due to the current weather system. The Gull and Burnt River flows have increased due to the rain and will continue to increase. The dams at Canning, Horseshoe, Twelve Mile, Gull and Elliot Falls (Moore Lake) are completely open. Central Lakes are full or overfull.

Kawartha Lakes and the Otonabee River

The Kawartha Lakes levels are overfull and will continue to increase due to the high flows from the Gull and Burnt rivers. The Otonabee River flow will continue to increase and flows will remain high. The dams at Fenelon Falls, Lindsay, Lovesick, Lakefield and Lock 19 are completely open.

Rice Lake and the Lower Trent

Rice Lake is overfull and will continue to rise due to increased flow on the Otonabee. Lower Trent will increase as well. The Hastings Dam 15 and Glen Ross Dam 7 are completely open.

Severn River

The Black River flow will continue to increase. Water levels and flows are high on the Severn River and will continue to increase. To mitigate flooding on the Severn, logs have been placed in dams at Washago, previously they were completely open. Dam operations are complete at Lake St. John to prevent backflow. The Whites, Crooked and Six Mile dams are completely open.

May 4, 2017

Weather

Rainfall over the last week of April combined with a significant rainfall event early this week have resulted in total precipitation amounts ranging from 50-100 mm over that time period which have increased water levels and flows across the Trent-Severn Waterway. Currently Environment Canada has issued a Public Weather Alert for Southern Ontario as further rainfall amounts of 40-70 mm are expected on Thursday and Friday with continued showers over the weekend and warn that "with the ground already saturated there is potential for local flooding". Please check the website of your local conservation authority or the Ontario Ministry of Natural Resources and Forestry for the most up to date watershed conditions.

Haliburton and Northern Areas

After receiving 10-25 mm of rain at the end of April, the Haliburton area received significant rainfall in the first three days of May totalling 50-70 mm. Comparatively the average precipitation amount for the entire month of May in Haliburton is 93 mm. Subsequently the Gull and Burnt River Reservoir Lakes are full or overfull and levels will continue to increase. The Gull and Burnt River flows have increased due to the rain and will continue to increase. Central Lakes are full or overfull.

Kawartha Lakes and the Otonabee River

The Kawartha Lakes levels are overfull and will continue to increase due to the high flows from the Gull and Burnt rivers. The Otonabee River flow will continue to increase and flows will remain high.

Rice Lake and the Lower Trent

Rice Lake is overfull and will continue to rise due to increased flow on the Otonabee. Lower Trent will increase as well.

Severn River

The Black River flow will continue to increase. Water levels and flows are high on the Severn River and will continue to increase. Dam operations are complete at Lake St. John to prevent backflow.

May 2, 2017

Weather

Rainfall over the past week combined with a significant rain fall event on Monday have resulted in total precipitation amounts ranging from 60-100 mm over that time period which have increased water levels and flows across the Trent-Severn Waterway. Check your local conservation authority website for watershed conditions. The short term forecast suggests further rain events towards the end of the week and into the weekend.

Haliburton and Northern Areas

The Haliburton area has received significant rainfall and all the Gull and Burnt River Reservoir Lakes are full or overfull. Lake levels are high and will continue to increase. The Gull and Burnt River flows have increased due to the rain and will continue to increase. Flows and levels will remain high through Minden. Central Lakes are full or overfull.

Kawartha Lakes and the Otonabee River

The Kawartha Lakes levels are high and will continue to increase due to the high flows from the Gull and Burnt rivers. The Otonabee River flow will continue to increase and flows will remain high.

Rice Lake and the Lower Trent

Rice Lake is high and is expected to continue to rise due to increased flow on the Otonabee. Lower Trent will increase as well.

Severn River

The Black River flow will continue to increase. Water levels and flows are high on the Severn River and will continue to increase. Dam operations are being completed at Lake St. John to manage the recent rainfall and prevent backflow.

April 11, 2017

Weather

Intermittent rainfall is forecast across the Trent-Severn Waterway region this week. Otonabee Region Conservation Authority has issued a flood warning. Lower Trent Conservation Authority and Ontario Ministry of Natural Resources and Forestry Bancroft District have issued flood watches. A water safety statement has been released by the Kawartha Conservation and Lake Simcoe Region Conservation Authority.

Haliburton and Northern Areas

The Gull River and Burnt River have peaked or are close to peaking but may rise again depending on rainfall. The Central and Burnt Lake reservoirs are near capacity. Gull River reservoir lakes are at 77% capacity. Little snow remains in the area.

Kawartha Lakes and the Otonabee River

The Kawartha Lakes levels are all near full. The Otonabee River flows are reaching average annual maximums.

Rice Lake and the Lower Trent

The Rice Lake level is above average and will continue to increase.

Severn River

The Black River has peaked but may rise again depending on rainfall. Flows and water levels on the Severn River are expect to remain about the same as decreases in the Black River are offset by the release of water from Lake Simcoe. Currently flows from Lake Simcoe to the Severn River is leakage only and discharges from Lock 42 have ceased. The water levels on Lake Simcoe are above long-term average and are expected to increase. Lake St. John dam is closed off to prevent back flow from the Black River.

April 4, 2016

Weather

Two rain events are expected to bring significant rainfall across the Trent-Severn Waterway region this week. A water safety statement has been released by the Kawartha Conservation, Lower Trent Conservation Authority, Otonabee Region Conservation Authority and Lake Simcoe Region Conservation Authority. Ontario Ministry of Natural Resources and Forestry Bancroft District has issued a flood watch.

Haliburton and Northern Areas

The Gull River and Burnt River flows have been holding steady due to snow melt but are expected to increase with the rain in the forecast and the depletion of the remaining snow in the northern areas. The rain combined with snow melt will continue to raise lake levels and increase stream flows on both systems. Lakes on both rivers systems still have storage available. Central Lakes are above long-term average and are expected to rise due to the rain. Most of the snow in the central lakes area is gone.

Kawartha Lakes and the Otonabee River

The Kawartha Lakes levels are around long-term average for this time of year and are expected to continue to rise over the next few days due to the rain and increased inflows. There is very little snow left in the Kawartha and Otonabee River area. The Otonabee River flow has been steady the last week but will increase due to the rain.

Rice Lake and the Lower Trent

Rice Lake is slightly below average and is expected to increase with rain and increased flow on the Otonabee. There is no snow left in this area.

Severn River

The Black River flows are expected to increase over the next few days due to rain and subsequent snow melt. Flows and water levels are expected to increase on the Severn River. This increase will result from the unregulated inflow coming from the Black River and local drainage. Flows from Lake Simcoe to the Severn River is leakage only and discharges from Lock 42 have ceased. The water levels on Lake Simcoe are slightly above long-term average and are expected to increase with the rainfall. All the logs are in at Lake St. John to prevent the Black River from backing into the Lake.

Parks Canada Water Management App

Parks Canada launched our new refreshed website on Sunday April 2, 2017. Unfortunately the Trent-Severn Water Management Application did not transition to the new site as planned. We are working to rectify this situation as a matter of priority and hope to have app functioning again soonest.

Watershed conditions

The Trent-Severn Waterway continues to work with local conservation authorities, municipalities and the Ministry of Natural Resources to ensure that accurate water shed information is relayed to the public.

For up-to-date warnings and watches with regards to water levels in your region, please visit the following web sites:

Visit Flood Ready for more information on general flood preparation. Locally, people are encouraged to contact their local municipal offices for any assistance they can provide with regard to flood mitigation, i.e. emergency services, sand bags, etc.

The Trent-Severn Waterway also maintains an email list for those wishing to have Water Management Updates sent directly to them via email.

If you would like to be added to our Water Management Update list to receive information as it becomes available, please email: Ont.TrentSevern@pc.gc.ca