From the TSW:
The Weather Network is currently forecasting 50 to 75 mm of rainfall across the entire Trent and Severn River watersheds. The bulk of this rainfall is anticipated to come Saturday.
The snow on the ground is variable across the Trent and Severn River Watersheds. Snow south of the Kawarthas is below seasonal values while snow pack north of the Kawarthas is near seasonal values. The warmer weather in combination with the forecasted rainfall will likely remove most of the snow in Kawartha lakes and Lower Trent watersheds. Flows in the Trent Severn are anticipated to rise significantly and water levels are expected to increase in all lakes and river reaches.
The Trent-Severn Water Management team will be actively monitoring the changing conditions. Any watershed condition updates will be released by your Conservation Authority.
Haliburton and Northern Areas
Most lakes are near or below long term average water levels. Gull and Burnt River are near or below average. Most Central lakes are below long-term average water levels.
Kawartha Lakes and the Otonabee River
The Kawartha Lakes are about 10 cm below average and declining. Otonabee River Flows are above average as a result of increased outflows in preparation of the large rainfall event. All river reaches are within their seasonal ranges.
Rice Lake and the Lower Trent
Rice Lake is below average and declining and the Lower Trent river reaches remain in the seasonal ranges. Trent River flows are above average.
Lake Simcoe water levels are below average. Black River and Severn River flows are below average. River and lake sections on the Severn River are below average. Operations have been started for Lake St. John.