Watershed Conditions Statements

June 4, 2020 – Due to below average rainfall in April and May, conditions in the Rideau Valley Watershed now meet the threshold for Minor Low Water status under the Ontario Low Water Response Program. Watershed residents and businesses are encouraged to conserve water during dry conditions. Although stream flow values are not currently below any of the low water thresholds, the stream flow values are lower than normal by as much as 30 to 50 percent and field observations indicate that ecological conditions are becoming stressed. The average 90-day rainfall measured at climate stations in and around the watershed…
Water Safety Statement Remains in Effect April 20, 2020 — The Flood Watch issued on April 9, 2020 is being TERMINATED. A Water Safety Statement is in effect as all areas are experiencing high spring flows which are typical for this time of year. The Ottawa River Regulation Committee has indicated that levels are decreasing along the main stem of the Ottawa River from Pembroke down to the Montreal region as runoff from melting snow in tributaries decreases. It is expected that levels will continue decreasing to normal spring freshet levels as no major precipitation is forecasted over the next…
April 9, 2020 — A Flood Watch is being issued for areas along the Lower Ottawa River. Water levels and flows from Arnprior to Hawkesbury continue to rise gradually due to on-going snowmelt in the central and northern portions of the Ottawa River basin. On Monday a spring storm is expected to bring above average temperatures and a significant amount of rainfall. Minor flood levels may be exceeded in low-lying, flood prone areas depending on the temperatures and precipitation received. Levels and flows are expected to stabilize into the weekend and will continue to rise beginning on Monday. Levels are…
April 3, 2020 (WCS – R06/2020)  –The Rideau Valley Conservation Authority is terminating the FLOOD WATCH that was previously in effect and issuing a HIGH WATER SAFETY message for all areas. Water levels and flows are still high for most, but not all, of the larger waterbodies in the Rideau Valley Watershed. The short-term forecast does not indicate any significant precipitation and the snow is now melted across the Rideau Valley Watershed. As such, water levels and flows are expected to slowly decline in the days ahead. Everyone needs to be cautious around lakes and streams with the fluctuating water levels.…
March 30, 2020 — A Water Safety Statement is being issued for areas along the Lower Ottawa River. Based on current snow cover and weather forecast, it’s anticipated that levels and flows from Arnprior to Hawkesbury will remain within the normal range of fluctuations associated with the spring freshet period. The Ottawa River Regulating Committee indicates that with warming temperatures and forecasted precipitation, increases in flows and levels are expected to continue and may cause minor flooding in low-lying areas over the coming weeks depending on the temperatures and precipitation received. Levels are currently expected to remain below flood thresholds.…
Updated Flood Outlook & Flood Watch: Rain in Forecast Will Cause Water Levels to Increase Again Across the Rideau Valley Watershed (WCS – R05/2020) March 27, 2020 –The short-term forecast is calling for rainfall amounts of 35 millimetres or more on Sunday and into Monday with above zero temperatures. As such, water levels and flows across the Rideau Valley Watershed are expected to increase again. A FLOOD WATCH is being issued for properties around Christie Lake and Wolfe Lake. In these areas, residents should expect freshet like water levels and flows. Parks Canada staff are closely monitoring the water levels in…
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Contact Us

Rideau Valley Conservation Authority
3889 Rideau Valley Drive
Manotick, Ontario K4M 1A5

613-692-3571, 1-800-267-3504



Regular Hours: Monday to Friday, 8:30 a.m. to 4:30 p.m.

Member of: conservation ontario