Warnings issued for heat and severe thunderstorms Friday

Severe Thunderstorm Warning
Issued at 13:05 Friday 19 July 2019

At 1:05 p.m. EDT, Environment Canada meteorologists are tracking a severe thunderstorm capable of producing very strong wind gusts, up to nickel size hail and heavy rain.

This line of severe thunderstorms is located from 7 kilometres west of Georgina Island to Rexdale, moving east at 70 km/h.

Locations impacted include:
Vaughan, Richmond Hill, Markham, Uxbridge, North York, Sutton, Sibbald Point Provincial Park, Scarborough and Whitchurch-Stouffville.

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Heavy downpours can cause flash floods and water pooling on roads. Strong wind gusts can toss loose objects, damage weak buildings, break branches off trees and overturn large vehicles.

Heat Warning
Issued at 11:38 Friday 19 July 2019

Significant heat and humidity arrives 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 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 Sunday.

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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.

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.