Environment Canada issues heat warning for Simcoe County

Katie Ramirez
July 4, 2018

The Ministry of environmental protection of Canada stated that in this regard, the temperature of the air in the world will rise to 30 - 35 starting Friday, June 29.

A heat warning issued for Toronto and the GTA remains in effect, with daytime highs of 32 C and 33 C in the forecast for the next two days.

Environment Canada expects the system to bring elevated humidex values and warns that temperatures could reach heat warning humidex values in the mid-30s this weekend.

The adopted criteria includes a daytime temperature of 29 degrees Celsius or higher and nighttime temperature of 16 degrees or higher or a humidex of 36 degrees Celsius or higher. A cold front will usher in a slightly cooler air mass for today.

High heat and humidity will return for Tuesday.

The weather agency says there will be "little relief from the heat" with overnight lows in the low 20s.

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Thursday's outlook is mixed skies and a high of 34 C. There's a 60 per cent chance of overnight showers and a low of 22 C.

Environment Canada says the current indications suggest the heat wave could continue through next week, and that it is the most significant heat event of the past few years.

"An extreme heat event for the Canada Day long weekend", says a notice for the City of Toronto.

The hot temperatures and high humidity are expected to persist through at least Thursday.

There are many warning signs for heat illness, including swelling, rash, cramps, fainting, heat exhaustion, heat stroke and the worsening of some health conditions.

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