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Heat warning continues. Warning of thunderstorms issued for Guelph and area

Significant heat and humidity continues and conditions are favourable for development of severe thunderstorms this evening
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WEATHER ALERTS
ENVIRONMENT CANADA
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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 continuing this evening.

Daytime temperatures in the low to mid thirties with humidex values of 40 to 45 will continue this evening. Little relief is expected again tonight as temperatures will only fall to the low to mid twenties 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 on 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.

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 and heavy rain.

A line of strong to severe thunderstorms has moved into southwestern Ontario and is expected to race eastward this evening. Very strong wind gusts to 100 km/h will be possible with this line of storms, as well as locally heavy rainfall accumulations.

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.

For more information on emergency preparedness, please click here

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