ONTARIO: Thunderstorm Forecast for Thursday, July 6, 2023
/
NOTE: YOU CAN CLICK ON THE MAP TO OPEN A ZOOMABLE IMAGE WHICH WILL BE EASIER TO READ.
FORECAST DISCUSSION
On Thursday, a cold front is forecasted to sweep across Southern Ontario, bringing the risk of thunderstorms. During the early afternoon, a line of storms is expected to develop along the front, starting from Georgian Bay and extending southwest towards London. Throughout the afternoon and early evening, the line will track eastward.
Considering the environment, there is potential for these storms to become severe. The strongest threat zone will be through Southwestern Ontario and into parts of Central Ontario including Simcoe County and Muskoka. Storms here could bring the potential for up to toonie-sized hail, 100 km/h wind gusts and heavy rainfall. One or two tornadoes are also possible (see below).
The rest of Southwestern Ontario and the Golden Horses can expect an isolated severe threat. Storm threats include 90 km/h wind gusts and quarter-sized hail.
Tornado Risk
Tornado risk on Thursday will be focused on a very similar area as last week stretching from around the Southern shoreline of Georgian Bay through Muskoka and into Algonquin Park. Models indicate that multiple isolated storms could develop over this region and combined with the prime environment, may produce one or two tornadoes.
An isolated tornado threat exists in surrounding areas including Southwestern Ontario and through parts of the GTA.
