Watershed Conditions Statements
April 26, 2016
With a definite declining trend of the water levels of Bobs Lake and Christie Lake, the Flood Watch that has been in effect specific to those lakes since April 11 is now cancelled. With little precipitation over the last two weeks and, therefore, declining inflow to contend with, Parks Canada staff have been able to gradually bring the levels of both lakes back down to target operating ranges. Water levels in the rest of the watershed are also decreasing and are close to averages for the time of year. However, the water is still relatively high and is cold. Caution…
April 11, 2016
The focus of this message is potential flooding issues on Bobs and Christie Lakes in the upper end of the Tay River watershed, part of the Rideau River/Canal system. Bobs Lake has levelled off over the weekend as inflows were reduced by colder temperatures. Runoff from the snow that fell overnight along with rain showers today and Tuesday will prolong the high water levels. No precipitation along with more spring-like temperatures are forecast for the rest of the week beyond Tuesday. This can be expected to bring a decline in levels on both Bobs and Christie Lakes.
April 07, 2016
An unusual amount of snow for this time of year is expected to cause lake levels in the upper part of the Rideau River watershed to rise as the snow melts over the next several days. Water levels can be expected to increase throughout the watershed but levels to flood stage could occur on Bobs and Christie Lakes. With the level of Bobs Lake close to the Full Supply Threshold, water has to be released. However, the release is being done as gradually as possible to minimize the impacts on both lakes. While levels are likely to increase downstream of…
March 31, 2016
Flows in all watercourses in the Rideau River watershed can be expected to increase through today as a result of a significant rain event. Forecasts of heavy rains today in the province east of Georgian Bay will have an impact on the Rideau River watershed. With rainfall in the order of 30 mm possible, flows can be expected to increase again to similar flows as what was reached earlier in March. This could once again bring flooding of the lowest lying areas along rivers and streams and on lakes and ponds.
March 15, 2016
Flows in all watercourses in the Rideau River watershed increased through the weekend and may have peaked on Monday. However, with rain forecast for tomorrow, flows may rise slightly higher by Wednesday night than what was reached yesterday. This could bring flooding of the lowest lying areas along streams. Below freezing temperatures are forecast for Friday and into next week. This freeze-up will cause water levels to decline quickly. With the changing water levels and ice formation due to the colder temperatures, caution around water is advised and children need to be warned of the risks.
March 11, 2016
An unusually warm string of temperatures that are forecast to continue through next week are rapidly reducing the snowpack. Flows in all watercourses have increased significantly over the last two days. This increase will continue through the weekend until the snow cover is gone on Sunday night. Further increases in water levels will depend on whether or not the 10 to 20 millimetres of rain presently forecast for Monday to Wednesday occurs and when it falls. The impact of the melt and rain is expected to be a peak flow on March 17 in the order of 280 cubic metres…