Watershed Conditions Statements

July 19, 2018 –  This statement is to advise that the low water status in the Rideau River watershed is now at Moderate severity. Rainfall in the last 90 days, measured at climate stations in and around the watershed, is about 60% of the normal amount for the time of year which is the threshold for Moderate Severity Low Water. Rain presently forecast for much of next week will be welcome but is not expected to have a significant impact. Longer range forecasts indicate temperatures above normal and precipitation below normal through the rest of the summer and into the…
July 10, 2018 –  This statement is to advise that present conditions in the Rideau River watershed are now at the threshold for Minor Low Water status under the Ontario Low Water Response Program. Rainfall in the last 90 days, measured at climate stations in and around the watershed, is about 80% of the normal amount for the time of year which is the threshold for Minor Low Water. The present heat wave with several daytime high temperatures above 30 degrees has burned lawns and wilted plants in gardens. Lake levels and streamflows are below normal for the time of year but are…
May 15, 2018 – By this statement the Flood Warning issued on April 30 for Bobs and Christie Lakes is terminated. The water level on Bobs Lake has receded to the ‘Full Supply’ threshold. No significant rain is presently forecast for the next four days. Therefore, levels on both Bobs and Christie Lakes can be expected to continue to recede toward normal summer levels over the rest of the week. Rain forecast for Saturday and Sunday is not expected to be enough to raise levels again. Caution is still needed around lakes and rivers with water still cold and above…
May 10, 2018 – The Mississippi Valley and Rideau Valley Conservation Authorities are advising residents that water levels appear to be stabilizing. Some nuisance flooding (Petrie Island, Boise Wood) has occurred. Rain that fell this morning was not enough to have an impact and there is no rain forecast for the next five days that would cause levels to increase again. Water levels will gradually decline to normal summer levels over the next two weeks barring the development of a significant weather system.. Note that streambanks are slippery along the Ottawa River, water is fast moving and still very cold.…
May 10, 2018 –  The Flood Warning issued on April 30 for Bobs and Christie Lakes remains in effect. Levels on both lakes continue to decline at the rate of about one centimetre per day. However, levels are still above the ‘Full Supply’ threshold at which damage can occur. Rain today is not expected to be sufficient to affect the decline of the lake levels and no rain is forecast for the next five days. Levels can be expected to recede to summer levels over the next week barring a significant weather system forming and moving through the region. Caution…
May 7, 2018 –  The Flood Warning issued on April 30 for Bobs and Christie Lakes remains in effect. Levels on both lakes have declined slightly but both remain above the ‘Full Supply’ threshold at which damage can occur. This decline will continue for the next two days with no precipitation forecast. However, rain is forecast for Thursday and through next weekend with a possible five day total close to 55 millimetres. If this amount falls, water levels are likely to increase but the primary impact is expected to be on Bobs and Christie Lakes. Outflows from Bobs Lake are…
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Contact Us

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

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

Email:

Hours:

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

Member of: conservation ontario