March 4, 2026
Conservation Authority urges caution around Streams and Rivers
The Upper Thames River Conservation Authority (UTRCA) expects this week’s warmer temperatures and rain will melt most of the snowpack and raise water levels in local rivers and streams. Everyone is reminded to use extra caution and avoid waterways and flooded areas.
UTRCA staff conducted a snow survey on Monday, March 2, which reported an average of 50-70 mm of water content in the northern portion of the watershed, and 15-20 mm in the southern portion. Forecasts call for 20-25 mm of relatively light rainfall beginning Thursday and continuing into the weekend. Temperatures may reach double digits during the day each day and remain above freezing overnight.
The UTRCA expects water levels in local rivers, streams, and ditches to gradually rise with the warm temperatures and melting snow, with the highest flows in most water courses likely occurring late Friday and into Saturday. Water levels are expected to remain elevated into next week. Forecasts also show more rain in the middle of next week, which will keep levels high for longer, should it materialize.
While the UTRCA does not expect serious flooding beyond low lying areas that traditionally flood, officials will be watching the situation closely and will provide an update if the situation changes.
The public is reminded to use extreme caution near streams, rivers, ditches, and ponds. Stream banks may be slippery and unstable, ice cover will be weakened and unstable, and the water is very cold and fast-moving. Ice on flood control reservoirs is especially hazardous due to fluctuating water levels.
Stay out of any flooded areas and do not drive through flooded roadways. Caregivers are reminded to keep children and pets away from watercourses. It is not safe to take shelter along riverbanks or in low lying areas that are prone to flooding.
The UTRCA will operate its flood control reservoirs at Fanshawe, Wildwood, and Pittock Conservation Areas to reduce downstream flooding.
UTRCA officials are monitoring the situation and will report on any changing conditions if necessary.
- See Thames River water levels and flows
- Types of flood bulletins
- Find out how the UTRCA manages floods
Contact: Eleanor Heagy , Communications and Marketing Coordinator