Severe weather threat continues

End of a Heatwave

The thunderstorms that swept the island of Montreal at 1pm today produced flooding in many regions including along the Trans Canada near Fairview in Pointe Claire (above & below). The temperature dropped from 30C to 23C during the storm. (Photos T. Cobrin)

Heavy flooding rains swept across the island of Montreal around 1pm today. It had already reached 30C just prior to the storms and the atmosphere was saturated from the week long heatwave. The storms dumped 40mm of rain on the city in less than 1 hour. The result was flooded highways and basements. Strong winds and lightning cut power to about 14,000 homes across the city. A severe thunderstorm watch remains in effect for the region until midnight as the cold front is still to our west and the atmosphere remains unstable. A second and even third round of storms may be possible this evening. Flash flood watches are also posted across New York State and Vermont.