SEVERE THUNDERSTORM WATCH: Metro Montreal 10AM-9PM
A frontal boundary slowly moving across Ontario and Quebec today will be the trigger for some juicy thunderstorms. Yesterday Montreal reached 29.5C which was just enough to trigger some big storms especially north of the city across the Ottawa Valley and Laurentians. Late in the day a strong cell moved north from New York state across the south shore, just clipping the island. Heavy bursts of rain and strong winds with vivid lightning accompanied the storm.
The same air mass remains in place this morning with elevated dew points and humidity and the chance of some clearing, the atmosphere will become very unstable. Already this morning with the limited clearing to our southwest, daytime heating is allowing for thunderstorms to erupt. Temperatures will reach 26 to 28C today. Environment Canada has posted a severe thunderstorm watch for southwest Quebec for today effective 10am until 9pm. Typically when a watch is issued this early it is because of the threat of flooding rains from the thunderstorms. Such was the case last Friday. The possibility exists today for 25-75mm (1-3") of rain due to thunderstorm activity. No warnings are in effect at this point. Check the live updates to the right for any warnings that may be posted today.
Showers will continue into Wednesday before clearing skies Thursday and a return to showers and thunderstorms once again for Friday. It will remain warm and humid through the week.
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