Watershed Conditions Statements
August 20, 2018 – This statement is to advise that the low water status in the Rideau River watershed generally remains at “Minor” Severity except for the Kemptville Creek sub-watershed which has risen to “Moderate” Severity. Rainfall in eastern Ontario has been widely varied since late July. What rain that has fallen in the Kemptville Creek sub-watershed has had little effect on flows with much of it infiltrating into the soil and retained in wetlands. The Creek is down to intermittent pools in some sections. Beaver have been active, building dams that contribute to the ponding. At the same time,…
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Watershed Conditions Statements
August 2, 2018 – This statement is to advise that the low water status in the Rideau River watershed has been reduced to Minor Severity. Longer range forecasts indicate warmer and dryer than normal through the rest of the summer and into the fall. If that forecast comes to pass, flows and levels can be expected to fall well below normal. Present conditions are generally close to normal but because of declining flows and forecasts, the low water status is being reduced from Moderate to Minor Severity rather than being withdrawn entirely. Record rainfall was measured at several climate monitoring…
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Watershed Conditions Statements
July 20, 2018
“Moderate” Low Water Condition in Rideau River Watershed
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…
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Watershed Conditions Statements
July 10, 2018
“Minor” Low Water Condition in Rideau River Watershed
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…
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Watershed Conditions Statements
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…
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Watershed Conditions Statements
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.…
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Watershed Conditions Statements
Watershed Conditions
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