ONTARIO: Thunderstorm Forecast for Sunday, June 25, 2023
/
NOTE: YOU CAN CLICK ON THE MAP TO OPEN A ZOOMABLE IMAGE WHICH WILL BE EASIER TO READ.
FORECAST DISCUSSION
A squall line of strong to severe storms is expected to develop across Southern Michigan during the afternoon on Sunday and track eastward. The environment is favourable for these storms to remain severe once they reach Deep Southwestern Ontario by the mid to late evening hours.
Our primary concern will be the widespread wind risk from Sarnia through Chatham and into Windsor. These areas could experience in excess of 100 km/h wind gusts from this line. Up to quarter-sized hail and even an isolated tornado can’t be ruled out with these storms.
Further eastward, the squall line is expected to track across our region overnight. Although it should weaken to below-severe levels by the early overnight hours. The occasional gust of up to 90km/h may still occur in localized spots overnight.
