Search

Isolated Severe Thunderstorms Possible in Southern and Northwestern Ontario

We are watching the risk for two areas of severe thunderstorms across Ontario this afternoon and into the evening.

Southern Ontario:

Thunderstorm Forecast, for Southern Ontario. Issued July 2nd, 2019.

The first area of interest is in Southern Ontario.


Across Southern Ontario, there is a moderate risk for severe thunderstorms (highlighted in yellow and marked with a '3') extending from Lake Huron near Grand Bend south towards Strathroy and to the west of St. Thomas. This area is at the most risk for some isolated to scattered severe thunderstorms.


Further north and east extending from Lake Huron near Amberley through Wingham and Listowel into Toronto, including everything south such as Niagara, London, Hamilton and Kitchener are at a low risk to see an isolated severe thunderstorm or two. This is highlighted in green and marked with a '2'. The best risk in this region to see severe thunderstorm extends from Grand Bend through to Woodstock and down to Port Dover, including St. Thomas and London.


The main threats will today's storms will be heavy rain between 20 and 60mm, damaging winds between 60 and 90km/h and moderate sized hail between 1 and 1.5cm, locally 2cm. An isolated tornado can't be ruled out from Lake Huron through to Lake Erie in Lambton and Essex Counties, although, the risk is quite low.


Otherwise, non-severe thunderstorms are possible in the blue region or highlighted with a '1'.

Northern Ontario:

Thunderstorm Forecast, for Northern Ontario. Issued July 2nd, 2019.

The second area of interest is in Northwestern Ontario.


Across Northwestern Ontario, there is a low risk for some severe thunderstorms extending from Lake of the Woods and Quetico Park through to Ignace, Grassy Narrows, Ears Falls and Uchi Lake, including Fort Frances and Kenora. The main threats in this region include heavy rain between 20 and 40mm, locally higher, damaging winds between 70 and 90kmh and large hail between 1 and 2cm with locally higher amounts towards 2.25 and 2.5cm. This is highlighted in green and marked with a '2'.


Otherwise, non-severe thunderstorms are possible in the blue region or highlighted with a '1'.

This site was designed with the
.com
website builder. Create your website today.
Start Now