Alerts for: Greater Sudbury and vicinity


3:54 PM EDT Sunday 22 October 2017
Rainfall warning in effect for:

  • Greater Sudbury and vicinity

Rain, at times heavy, is expected.

Total rainfall amounts of 40 to 65 mm are expected by Tuesday morning.

Rain is expected tonight and will persist into Tuesday. The heaviest rain is expected to fall Monday afternoon and evening. Rain will gradually taper to showers through the day Tuesday.

This rain is associated with a developing low pressure system that will track over Northeastern Ontario on Tuesday.

Heavy downpours can cause flash floods and water pooling on roads.

Rainfall warnings are issued when significant rainfall is expected.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to or tweet reports using #ONStorm.


What we are doing


Summer 2017: Significant weather across Canada

By analyzing weather events, ECCC is collecting more information as to how our climate is changing.

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