Extreme heat wave expected to peak with record-breaking Monday
Monday is forecast to be the hottest day of an extreme, dangerous heat wave for the Ottawa-Gatineau area, with temperatures in the mid-30s and humidity making it feel like the mid-40s.
Heat warnings remain Monday and Tuesday for all of eastern Ontario and western Quebec.
The forecasted highs for some major local hubs are:
36 C in Ottawa and Gatineau, with humidity peaking at 44.
34 C in Maniwaki, with humidity peaking at 44.
34 C in Pembroke, with humidity peaking at 42.
33 C in Trenton, with humidity peaking at 44.
32 C in Kingston, with humidity peaking at 43.
Many of those temperatures would set daily heat records.
Ottawa topped out just under 30 C Sunday, with humidity making it feel like 37 at its hottest in late afternoon. It felt like 36 with the humidity there by 8 a.m. Monday.
WATCH | Safety tips in extreme heat:
Health agencies say people are likely going to have to change their routines to stay safe in this dangerous heat.
Health Canada recommends staying cool and staying hydrated when extreme heat hits.
That can mean everything from drinking lots of water and planning outdoor activities for cooler times, to preparing meals that don't require ovens and keeping nearby air-conditioned spaces in mind if needed.
This is true for yourself and for vulnerable people you know.
Watch for signs of heat exhaustion — like a headache, dizziness or a rapid heartbeat — and get to a cool place where you can drink water. Heat stroke, which includes confusion and very hot or red skin, is a medical emergency requiring a 911 call.
More resources may be available through your municipality. Ottawa, for example, has a map of public and other places to cool off.
New Ottawa fire ban
Some changes are also being made in the name of safety, such as the Western Québec School Board cancelling classes Monday.
Ottawa is now under an open air fire ban.
Research shows heat waves are becoming increasingly extreme as the climate warms.
Environment Canada has started analyzing weather data and climate model simulations to compare how heat waves have changed between today's climate and the cooler pre-industrial one.
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