Ontario, Quebec Issue Heat Warnings as Temperatures Hit 37C and Heat Index Reaches 45C
Updated
Updated · The New York Times · Jun 30
Ontario, Quebec Issue Heat Warnings as Temperatures Hit 37C and Heat Index Reaches 45C
3 articles · Updated · The New York Times · Jun 30
Summary
Orange heat warnings took effect across southern Ontario as temperatures climbed toward 37C, with Toronto expected to see the worst heat on Wednesday and Thursday.
A North America-wide heat dome is driving the surge, and humidity is set to push felt temperatures as high as 45C while overnight lows stay in the low 20sC.
Yellow warnings also covered central and eastern Ontario and far southern Quebec, including Montreal, where highs in the low 30sC were forecast.
Environment Canada warned the hot, humid air could worsen air quality and push the Air Quality Health Index near the high-risk category.
The Canadian heat wave began Tuesday and should ease faster than in the United States, with Ontario and Quebec expected to return closer to seasonal norms next week.