WEATHER ALERT
ENVIRONMENT CANADA
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Severe thunderstorm watch issued for:
Newmarket - Georgina - Northern York Region, Ont. (043220)
Vaughan - Richmond Hill - Markham, Ont. (043240)
Listowel - Milverton - Northern Perth County, Ont. (046320)
Stratford - Mitchell - Southern Perth County, Ont. (046340)
Waterloo - Wellington, Ont. (046400)
Innisfil - New Tecumseth - Angus, Ont. (046510)
Halton Hills - Milton, Ont. (046630)
Burlington - Oakville, Ont. (046640)
Niagara, Ont. (046700)
Current details:
Conditions are favourable for the development of severe thunderstorms that may be capable of producing strong wind gusts, large hail and heavy rain.
Hazards:
90 km/h wind gusts.
Toonie size hail.
Heavy downpours.
There is a risk of tornadoes.
Timing:
Today through this evening.
Discussion:
Thunderstorms have developed that may be capable of producing 90 km/h wind gusts and toonie size hail. Rainfall rates of 40 mm are possible with these thunderstorms. Refer to the Special Weather Statement in effect for details on rainfall totals.
Should conditions for the development of tornadoes improve this watch will be upgraded to a Tornado Watch.
These storms will dissipate this evening as daytime heating comes to an end.
Large hail can damage property and cause injury. Strong wind gusts can toss loose objects, damage weak buildings, break branches off trees and overturn large vehicles. Remember, severe thunderstorms can produce tornadoes.
Lightning kills and injures Canadians every year. Remember, when thunder roars, go indoors!
Emergency Management Ontario recommends that you take cover immediately if threatening weather approaches.
Severe thunderstorm watches are issued when atmospheric conditions are favourable for the development of thunderstorms that could produce one or more of the following: large hail, damaging winds, torrential rainfall.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to [email protected] or tweet reports using #ONStorm.
For more information: https://www.ontario.ca/page/be-prepared-emergency.
More details on the alert are available here.
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