
Fatalities reported after damaging derecho slams southern Ontario
Overnight lows of zero or below will lead to the development of patchy frost tonight and into Sunday morning.
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Frost advisories are issued when temperatures are expected to reach the freezing mark during the growing season, leading to potential damage and destruction to plants and crops.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to SKstorm@ec.gc.ca or tweet reports using #SKStorm.