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Severe thunderstorms possible today

Heat warning also remains in effect
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WEATHER ALERTS
ENVIRONMENT CANADA
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Severe thunderstorm watch in effect for:
    •    Guelph - Erin - Southern Wellington County
    •    Kitchener - Cambridge - Region of Waterloo
    •    Mount Forest - Arthur - Northern Wellington County

Conditions are favourable for the development of severe thunderstorms that may be capable of producing strong wind gusts, large hail and heavy rain.

After an initial round of scattered thunderstorms this morning, additional thunderstorms are forecast to develop this afternoon into this evening. The biggest threats from these thunderstorms will be strong wind gusts, large hail and heavy rain.

Lightning kills and injures Canadians every year. Remember, when thunder roars, go indoors!

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.

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.

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Heat warning in effect for:
    •    Guelph - Erin - Southern Wellington County
    •    Kitchener - Cambridge - Region of Waterloo
    •    Mount Forest - Arthur - Northern Wellington County

Significant heat and humidity will arrive today.

Daytime temperatures in the low to mid thirties with humidex values of 40 or higher are expected today and again on Saturday. Little relief is expected tonight and Saturday night as temperatures will only fall to the low to mid 20s with humidex values remaining near 30.

A cooler and less humid air mass is forecast to arrive in the wake of a weak cold front Sunday.

Extreme heat affects everyone.

The risks are greater for young children, pregnant women, older adults, people with chronic illnesses and people working or exercising outdoors.

Never leave people or pets inside a parked vehicle.

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.

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