Today – May 17, 2020
Cloudy. Rain beginning near noon. Risk of a thunderstorm this afternoon. Amount 5 mm. Wind east 30 km/h gusting to 50. High 16. UV index 5 or moderate.
Tonight
Rain. Risk of a thunderstorm this evening. Amount 10 to 20 mm. Wind east 40 km/h gusting to 60. Low 12.
Special weather statement
30 to 60 millimetres of rain by Tuesday morning.
Periods of rain are expected to begin in deep southwestern Ontario by midday today and then spread northeastwards, reaching the Greater Toronto Area and Georgian Bay areas by early this evening. The rain is expected to taper off early Tuesday morning, although some uncertainty remains around when the rain will end.
Total rainfall amounts ranging from 30 to 60 millimetres are expected, with locally higher amounts possible in thunderstorms.
Environment Canada will continue to monitor the situation closely. Rainfall Warnings may be issued if additional rainfall appears likely.
For information concerning flooding, please consult your local Conservation Authority or Ontario Ministry of Natural Resources and Forestry District office.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@canada.ca or tweet reports using #ONStorm.
Mon, 18 May – Rain. Risk of a thunderstorm in the afternoon. Amount 10 to 20 mm. Wind east 30 km/h gusting to 60 increasing to 50 gusting to 70 late in the afternoon. High 16. UV index 2 or low. Night – Periods of rain. Low 12.
Tue, 19 May – Cloudy with 60 percent chance of showers. High 15. Night – Cloudy periods. Low 11.
Wed, 20 May – Sunny. High 16. Night – Cloudy periods with 30 percent chance of showers. Low 11.
Thu, 21 May – Sunny. High 20. Night – Clear. Low 13.
Fri, 22 May – Sunny. High 22. Night – Clear. Low 14.
Sat, 23 May – Sunny. High 25.
