Strong storms possible

F-1 weekend is here and the weather looks perfect. Sebastian Vettel qualifying in Montreal in 2011.

Strong to severe thunderstorms are possible after the noon hour today across the St. Lawrence Valley of Quebec and Ontario and south into New York and Vermont. A trough of low pressure will be the focus to provide some lift and the daytime heating of the warm June sun will provide the energy. It is a warm and muggy morning at 17C and temperatures should rise rapidly into the mid 20's. Thunderstorm activity will begin to flare up by early afternoon. Any strong storms that do develop will be capable of gusty winds to 90km/h and small hail. I don't think we will see the prolonged flooding rains of last week, but with all thunderstorms localized heavy rain is possible. Yesterday some thunderstorms did develop late in the day but split the city moving west across Valleyfield and also east of the island. Light rain did fall here on L'Ile Perrot, but it was very brief and spotty.

The activity should come to an end by sunset with patchy fog overnight. At this time the F-1 weekend in Montreal, at least from a weather point of view look great. Sunshine and seasonably warm temperatures around 25C should prevail both Saturday and Sunday. Lets hope this spectacular event goes off without to much interruption from our professional protesters.