Dec. 10, 2021 - Cataraqui Conservation has issued a Watershed Conditions Statement today due to a strong storm system that is forecast to bring heavy rain and strong winds to the region Friday December 10 and Saturday December 11.
Rain is forecast to begin later in the day on December 10 and heavy rain will continue through the overnight into December 11. Forecasted rainfall totals are uncertain, ranging from 15 – 45 mm+. Environment Canada Special Weather Statements are in effect.
Some creek flows are still elevated following recent rainfall. With the current saturated or frozen ground conditions and minimal snowpack to absorb rainfall, high runoff into lakes and streams is expected, followed by water level and flow increases.
Water Managers, who operate dams on area inland lakes, are passing above average flows through water control structures. Water levels on inland lakes and streams may rise for several days.
Cataraqui Conservation is urging caution around all dams (inflow and outflow channels) and fast-flowing watercourses. Respect the hazards in these areas by obeying all warning signs, and keep away from booms, buoys, and barriers. Stay well back from the water’s edge above and below dams and hydroelectric stations. Creek banks and lake shorelines may be slippery, increasing the chance of falling in.
Widespread flooding is NOT expected at this time. However, localized inundation of low-lying areas is possible, especially with the higher rainfall amounts. If you witness flooding and/or require assistance your first point of contact is the local municipality.
Staff will continue to monitor conditions and forecasts and will update statements as needed. This Watershed Conditions Statement will remain in effect until (or updated before) Wednesday, December 15, 2021, at 11:59 PM.
For up-to-date flooding information, please visit our flood forecasting and information page at https://cataraquiconservation.ca/pages/flood
See below for watershed conditions terminology:
Normal: No flood conditions exist
Watershed Conditions Statement – Water Safety: High flows, unsafe 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.
Watershed Conditions Statement – Flood Outlook: Early notice of the potential for flooding based on weather forecasts calling for heavy rain, snow melt, high wind or other conditions that could lead to high runoff, cause ice jams, lakeshore flooding or erosion.
Flood Watch: Flooding is possible in specific watercourse or municipalities. Municipalities, emergency services and individual landowners in flood-prone areas should prepare.
Flood Warning: Flooding is imminent or already occurring in specific watercourses or municipalities. Municipalities and individuals should take action to deal with flood conditions. This may include road closures and evacuations.