Thunderstorms developing in southern Ontario, risk of heavy rain, large hail
A cold front will trigger scattered thunderstorms across southern Ontario Tuesday afternoon and evening. Large hail and strong winds are a potential, along with heavy rainfall
Southern Ontario will be seeing the heat and muggy air mass hang on for one more day before relief is provided by a cold front. However, before the cooldown occurs, there will be conducive conditions for thunderstorms to fire up in the region. Some of the storms could reach severe limits in the afternoon and evening hours on Tuesday.
Tuesday
Areas: Southern, northeastern Ontario
Time: Afternoon and evening
Weather: A line of thunderstorms is forecast to bubble up ahead of a cold front Tuesday afternoon. Storms will be scattered along the front, so not all regions will see a thunderstorm.
Those that do encounter storms face the standard threats, and a couple of the storms might become severe.
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Here’s a snapshot of the projected storms Tuesday afternoon, potentially impacting London and several locations up and down the Highway 401 corridor.
The warmest temperatures will be in all of Eastern Canada including southern Ontario where, with the humidex, temperatures will feel like the mid-30s.
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Wednesday overnight
Once the cold front passes, Wednesday will be a return to seasonal temperatures for most regions in southern Ontario. Mainly dry conditions are expected in the afternoon, but that does not hold for long.
A warm front will slowly lift through the day, with rain showers returning across the southwest, including Windsor. Light sleepers should be aware, as Wednesday could feature some overnight rumbles of thunder as the system reaches the GTA. Continuing its movement northeast, another cold front could trigger stronger afternoon storms across the Golden Horseshoe.
Stay tuned to The Weather Network across all platforms for more forecast updates for Ontario.