The Lake Simcoe Region Conservation Authority (LSRCA) is warning residents to use “extreme caution” around all bodies of water as quickly rising temperatures, significant ice buildup, and accelerated melting combine to create hazardous conditions across the watershed.
“Families and pet owners are urged to keep a safe distance from shorelines, riverbanks, and any ice-covered areas.”
Rapid warmup increases risk of ice jams and flooding
After a winter defined by heavy snowfall and thick ice, forecasters expect temperatures to climb into the mid-teens over the coming days, along with rainfall. According to the LSRCA, the weather shift will speed up melting and significantly increase the likelihood of ice jams—blockages that occur when large chunks of ice lodge in narrow river sections.
“When this occurs, water can rise quickly behind the jam, leading to localized flooding, bank erosion, and sudden changes in water levels,” the agency said.
Even if a waterbody still appears frozen, the LSRCA notes that ice is now weakening, breaking apart, and shifting unpredictably. “Even stable-looking areas can shift suddenly, posing risks for anyone nearby,” the release stated.
Hidden dangers: unstable banks and cold water
Beyond the flood risk, the LSRCA warns that riverbanks may become slippery and unstable as snow melts, and cold-water temperatures can greatly increase danger during an emergency.
“Ice that once appeared solid may now be hollow, fractured, or detached from shore,” officials said.
The agency is asking all residents—especially those living close to waterways—to remain vigilant, monitor flood messages, and keep children and pets away from all water’s edges.
Spring safety reminders
The LSRCA lists several key steps for staying safe during the spring melt:
- Check lsrca.on.ca for flood messaging.
- Keep children and pets away from waterways.
- Avoid recreation near ice jams, ice‑covered rivers, or partially frozen waterbodies.
- Never walk on ice-covered waterbodies or drive through flooded or fast-moving water.
- Move outdoor items away from shorelines.
- Stay off riverbanks, which may be unstable.
- If someone or a pet falls through the ice, do not attempt a rescue—call 911 immediately.
More information can be found at the LSRCA’s Flood Preparedness webpage.
