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Morning News for Tuesday, August 18, 2026

Windsor News Today

Locally significant rainfall possible this weekend.

What:
Local rainfall amounts exceeding 50 mm.
Rainfall rates up to 40 mm in an hour.

When:
Today through Sunday morning.

Additional information:
Showers and thunderstorms over southwestern Ontario will move into the Greater Golden Horseshoe and central Ontario this afternoon. Given the potential for slow-moving showers and thunderstorms and for some areas to receive multiple rounds of precipitation, local amounts exceeding 50 mm are possible.

Note that rainfall amounts will be highly variable across the region and not all areas will receive this much rain. There remains considerable uncertainty as to exactly which areas will receive the highest rainfall amounts.

Additional showers are expected through Sunday, especially to the east of Lake Huron and Georgian Bay and over northeastern Ontario.

Water may pool on roads and in low-lying areas.

Don't drive through flooded roadways.

Avoid low-lying areas. Watch for washouts near rivers, creeks and culverts.

For information concerning flooding, please consult your local Conservation Authority or Ontario Ministry of Natural Resources office. Visit https://www.ontario.ca/page/floods for the latest details.

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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 social media using #ONStorm.

Expect a day of partly cloudy with clear spells

You can expect partly cloudy in the morning, with clearing in the afternoon

Due to the special weather alert issued for this weekend, Georgian College has decided to postpone Saturday’s open house events.
There are safety concerns thanks to the Environment Canada forecast for Owen Sound Barrie, Orillia, Collingwood, Midland, Muskoka, and Orangeville.
Georgian’s Open House will take place Saturday, April 21 from 9am to 2pm at all campus locations.
More information can be found at https://www.georgiancollege.ca/news-events/all-events/open-house/
https://www.georgiancollege.ca/news-events/all-events/open-house/

Midwestern

U.S. and Canadian flags along Windsor's riverfront.  (Photo by Melanie Borrelli.)

Sarnia

Chatham

An Essex-Windsor EMS ambulance in Windsor, November 23, 2025. Photo by Mark Brown/WindsorNewsToday.ca.

Town of LaSalle Civic Centre, December 8, 2022. (Photo by Maureen Revait) 

Vehicles driving in heavy rainfall. August 29, 2017. Photo by Mark Brown/Blackburn News.

Georgian College Open House Postponed

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