Ontario - Canada   2026-04-18   Saturday   45.02N, -74.71W

Cornwall

Ontario - Canada
2026-04-18

special weather statement in effect

Issue date: 2026-04-18T07:57+00:00

Rainfall expected today into Sunday. The ground, already near saturation, has a limited capacity to absorb this rainfall.What:Rainfall amounts of 10 to 20 mm.When:This afternoon into Sunday morning.Additional information:A cold front will sweep through the region this afternoon and evening, bringing showers and the risk of a thunderstorm. Then another round of showers, possibly mixed with snow, will move through tonight into Sunday morning.Portions of the region have received significant rainfall amounts over the last few days. As a result, further rainfall could have significant impacts.Water will likely pool on roads and in low-lying areas. Don't drive through flooded roadways. Avoid low-lying areas.For information concerning flooding, please consult your local Conservation Authority or Ontario Ministry of Natural Resources office. Visit Ontario.ca/floods for the latest details.###Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.