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| Grapefruit size hail destroyed crops and damaged cars and homes near Weyburn, Saskatchewan on Saturday. This photo was taken on the farm of the Miller family 15km southeast of Weyburn.. More big storms are possible today in and around Regina. |
High pressure will dominate our weather this week with a very warm and humid southwest flow of air. As a result temperatures will rise into the low to mid 30's with humidex readings from 40 to 42C. This has prompted Environment Canada to issue a heat advisory for most of the southern portion of Ontario and Quebec for today and tomorrow. High temperatures in Montreal will reach 32C (90F). Already this morning at 7am it is a muggy 24C. The same type of weather is forecast for the US east coast from Vermont to the Carolinas. The only break in the heat could be a few isolated thunderstorms in southern Quebec, otherwise the next threat for widespread showers and storms won't come until late Wednesday. Depending on how fast it warms today in Montreal we have an outside shot at the record for July 15, 33.9C set in 1955.
Over the weekend big thunderstorms fired up in southeast Saskatchewan and southwest Manitoba. Tornadoes, heavy rain and grapefruit size hail were observed from Weyburn east towards the Manitoba border. Southern Saskatchewan has another shot at severe weather today including an elevated tornado risk in the south. A tornado watch may be required later today for a portion of the region.
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