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Watershed Conditions Statement - FLOOD OUTLOOK - Updated April 24

April 24, 2018  - Water levels are expected to rise again in the Rideau River watershed as a result of meltwater from the last of the snow, flow from thawing soil and rain forecast for Wednesday and Thursday. 

Daytime temperatures are expected to approach 20 degrees over the rest of the week and stay above freezing at night. This will cause the remaining snow in the upper watershed to melt and, along with thawing water from the soil, begin to work its way down through the system. Rain in the order of 20 to 30 millimetres is forecast for the next two days which, in combination with the melt runoff, can be expected to cause water levels to rise.

Access issues in the low-lying communities on the Long Reach of the Rideau between Kars and Kemptville such as Hilly Lane and Cedar Beach could occur as a result of the increasing flows.

Flooding is not expected but the levels of Bobs and Christie Lakes are being monitored closely by Parks Canada staff and operation of the dam at Bolingbroke will be done as warranted to minimize any impacts on the two lakes.

Note that streambanks are slippery and any remaining ice cover on streams, ponds and lakes will be hazardous. Children and pets should be kept away from all watercourses as levels fluctuate with the spring weather.

More Information:
Patrick Larson, RVCA Senior Water Resources Technician 
Rideau Valley Conservation Authority 
613-692-6831, 1-800-267-3504 ext. 1210

RVCA Watershed Conditions Statements:

  • Water Safety – High flows, unstable banks, melting ice or other factors that could be dangerous for recreational users such as anglers, canoeists, hikers, children, pets, etc. Flooding is not expected.
  • Flood Outlook – Early notice of the potential for flooding based on weather forecasts, calling for heavy rain, snow melt, high winds or other conditions that could lead to high runoff, cause ice jams and/or lakeshore flooding or erosion.
  • Flood Watch – Flooding is possible in specific watercourses or municipalities. Municipalities, emergency services and individuals in flood prone areas should prepare.
  • Flood Warning – Flooding is imminent or already occurring in area watercourses.