Severe Storms Possible Through Eastern Ontario Wednesday Afternoon/Evening With the Potential for an Isolated Tornado

Valid: Wednesday, September 2, 2020

NOTE: The tornado risk zone outlines the region with the highest probability of tornadoes, but tornadoes may occur outside of the zone.


Timing

Southwestern: 2 - 4PM
Golden Horseshoe: 2 - 5PM
Central: 2 - 6PM
Eastern: 3 - 9PM
Northeastern: N/A

Not sure what region you are in? Click here for a map showing the regions across Southern Ontario. Northeastern Ontario is north of North Bay (not shown on map).

Thunderstorm Threat Breakdown


Thunderstorm Confidence

High (75%)


Severe Confidence

Low (25%)


Tornadoes

Isolated


Max Wind Gusts

100+ kmh | 62+ mph


Max Hail Size

Quarter
~2.5cm | ~1"


Max 24-hr Rainfall

~50 mm | ~2"

Forecast Discussion

Heavy showers and non-severe thunderstorms have developed east of Georgian Bay earlier today and are tracking to the east towards Eastern Ontario along the Quebec border. The environment throughout Eastern Ontario is capable for these storms to become severe during the late afternoon into early evening hours. The main threat with these storms will be strong wind gusts potentially in excess of 100km/h and small hail. There is also the threat of an isolated tornado along the Quebec border from Algonquin Park to Ottawa although the risk is much stronger on the Quebec side of the border.

There is a very questionable severe risk through the Niagara region with strong wind gusts up to 90km/h as the main concern, but storm development isn’t guaranteed. The storm risk will come to an end around 9-10 PM as the storms move out of the province.

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