Forecast for 2023-05-07

River conditions forecasts posted on 2023-05-07 by Ottawa River Regulating Committee

Between 45 and 90 mm of precipitation fell over the basin from Saturday April 29 to Wednesday May 3 causing flows and levels to increase rapidly on the main stem of the Ottawa River.  Levels and flows have peaked in all locations between Mattawa and Hawkesbury / Grenville and are slowly declining. With the forecast of sunny weather and little precipitation over the next few days, spring runoff in expected to decline slowly over the coming week. Levels are expected to continue to decline slowly along the main stem of the Ottawa River in the coming days. Please refer to the forecast section of our website for more information about the expected rate of level decline.