Much of eastern Canada remains under blanket of hot, humid air

Cesar Mills
July 4, 2018

Overnight low temperatures are expected to be in the low 20s, with some rural areas dipping into the low teens - but no matter where you are in southwestern Ontario, there won't be much - if any - relief from the heat.

However, daytime highs are still expected in the low thirties in the next two days. A cold front will usher in a slightly cooler air mass for today.

"People waking up Tuesday morning might feel a bit of relief from the extreme heat of the weekend, but it is only a short cooldown", she said.

A new heat warning system is now in place to warn Nova Scotians when hot and humid weather has the potential to be harmful.

"This will be the most significant heat event in the past few years", according to Environment Canada.

Dr. Robert Strang, chief medical officer of health, says the former criteria included higher temperatures like when the humidex was 40 degrees Celsius of higher.

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The warnings stretch from Sudbury and North Bay down to Windsor and east past Montreal.

The cool down will be short lived, as heat and humidity will return on Tuesday and persist through most of this week.

Isolated adults, seniors, young children, people experiencing homelessness and people with certain mental health illnesses, chronic illnesses, heart and lung issues or limited mobility are at greater risk of heat-related illnesses.

Heat warnings are issued when very high temperature or humidity conditions are expected to pose an elevated risk of heat illnesses, such as heat stroke or heat exhaustion. Never leave people or pets inside a parked vehicle.

Environment Canada has updated its heat advisory for southern Ontario, warning about high humidex values.

Other reports by GizPress

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