Conditions are favourable for severe thunderstorms early this afternoon into this evening as a cold front moves in from the west.
Severe thunderstorm watch issued for:
Uxbridge – Beaverton – Northern Durham Region,
Newmarket – Georgina – Northern York Region,
Barrie – Orillia – Midland,
Western Algonquin Park – Lake of Two Rivers,
Parry Sound – Muskoka,
Haliburton,
Fenelon Falls – Balsam Lake Park – Northern Kawartha Lakes,
Lindsay – Southern Kawartha Lakes,
Bruce Peninsula – Sauble Beach – Tobermory,
Owen Sound – Blue Mountains – Northern Grey County,
Dufferin – Innisfil,
Hazards:
Damaging wind gusts of 90 to 110 km/h
Nickel-sized hail
Heavy downpours
A tornado is also possible
Discussion:
A cold front will sweep across southern Ontario late this afternoon. Ahead of and along the front, scattered thunderstorms are expected to develop. Some of these storms could become severe, with damaging winds, heavy rain and hail the main threats. A few isolated tornadoes are also possible.
Strong wind gusts can toss loose objects, damage weak buildings, break branches off trees and overturn large vehicles. Remember, severe thunderstorms can produce tornadoes. Heavy downpours can cause flash floods and water pooling on roads.
Be prepared for severe weather. Take cover immediately, if threatening weather approaches. Lightning kills and injures Canadians every year. Remember, when thunder roars, go indoors!
The Office of the Fire Marshal and Emergency Management recommends that you take cover immediately if threatening weather approaches.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@canada.ca or tweet reports using #ONStorm
