The Long Point Region Conservation Authority has upgraded its Flood Outlook to a Watershed Conditions Statement – Water Safety for the entire watershed following recent mild and wet weather across southern Ontario.
A series of low-pressure systems brought above-freezing temperatures and approximately 15 millimetres of precipitation to the region.
While much of the existing snowpack absorbed the rainfall, melting has begun, generating runoff and increasing water levels in local watercourses.
Officials say localized flooding and ponding are already occurring in low-lying and poorly drained areas.
River ice across the watershed has started to degrade but remains largely in place.
With rising flows and continued mild temperatures, ice cover is expected to weaken further, increasing the possibility of ice movement and localized jamming — particularly in areas with a history of ice jams.
Big Otter Creek in Vienna and Port Burwell, along with the mouth of Sandusk Creek, are identified as higher-risk locations should ice jams develop.
Stream flows are expected to rise over the coming days, and residents are urged to stay away from ditches, rivers, streams and ponds due to slippery banks and cold, fast-moving water.
Landowners are encouraged to ensure dams, culverts and catch basins are clear of debris if it can be done safely.