RVCA Watershed Conditions Statement

Rideau Valley Conservation Authority

Watershed Conditions Statement – Water Safety - Update


Unusually Warm Temperatures to Reduce Snowcover


(WCS - 3/2017)

February 23, 2017 –  Unseasonable temperatures can be expected to cause the existing snowcover in the Rideau watershed to be significantly reduced on the weekend. Flooding of lowest lying areas along streams could occur.


Forecast temperatures well above normal for the time of year will have an impact on the snowpack throughout the watershed. With about 10 degrees as the high temperature today, melting is occurring. Cooler temperatures through Friday will slow the melt but it will accelerate again on Saturday with a forecast high above 10 degrees. Rain is forecast for both Friday and Saturday. The remaining snow will absorb some of the meltwater and rain slowing the runoff process but some runoff will occur to watershed streams. How much the water levels will increase depends on the timing and duration of the warm temperatures. With streams and lakes at winter level, there is some storage capacity in the system so that the impact of the runoff can be expected to be limited to the lowest lying areas along the river channels. Colder temperatures on Sunday and into next week will slow the melt process and allow water levels to subside once again.


Ice sheets will be weakened by the rising water levels and warm temperatures. Ice in ditches and smaller streams could accumulate at road crossings with localised road flooding possible.


Parents are urged to remind their children about the dangers of playing on or near ice covered surfaces or fast flowing water in ditches and smaller creeks. All watershed residents are advised to stay off of the ice on rivers and streams and avoid icy or wet streambanks where footing can be treacherous.


Conservation Authority staff will continue to monitor conditions and issue further statements as conditions warrant.





More Information:

contact: Patrick Larson, RVCA Senior Water Resources Technician

Rideau Valley Conservation Authority

613-692-6831, 1-800-267-3504 ext. 1210

or cell 613-799-9423


"Rideau Valley Conservation Authority is a partnership of municipalities within the Rideau Valley watershed

created under the Conservation Authorities Act to deliver a range of programs in watershed management and

natural resource conservation."


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.



Friday, February 24, 2017

Township of Elizabethtown-Kitley, 6544 New Dublin Rd, RR 2  Addison, ON, K0E 1A0
Tel. 613-345-7480 or 1-800-492-3175, Fax. 613-345-7235, Email: mail@elizabethtown-kitley.on.ca

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