944
WWCN11 CWTO 311532
YELLOW WARNING - HEAT
FOR SOUTHERN ONTARIO
UPDATED BY ENVIRONMENT CANADA
AT 11:32 A.M. EDT MONDAY 31 AUGUST 2026.
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YELLOW LEVEL WARNING - HEAT - FOR:
WINDSOR - LEAMINGTON - ESSEX COUNTY.
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IMPACT LEVEL: MODERATE
FORECAST CONFIDENCE: HIGH
==DISCUSSION==
A HEAT EVENT IS EXPECTED TO BEGIN TODAY.
WHAT:
MAXIMUM TEMPERATURES OF 29 TO 31 DEGREES CELSIUS.
MINIMUM TEMPERATURES OF 20 TO 22 DEGREES CELSIUS.
HUMIDEX VALUES NEAR 38.
WHEN:
TODAY THROUGH WEDNESDAY, POSSIBLY LASTING INTO THURSDAY.
ADDITIONAL INFORMATION:
THE HEAT EVENT MAY CONTINUE INTO THURSDAY, ALTHOUGH CONFIDENCE IS
LOW AT THIS STAGE.
TAKE ACTION TO PROTECT YOURSELF AND OTHERS - EXTREME HEAT CAN AFFECT
EVERYONE'S HEALTH. DETERMINE IF YOU OR OTHERS AROUND YOU ARE AT
GREATER RISK OF HEAT ILLNESS. CHECK ON OLDER ADULTS, THOSE LIVING
ALONE AND OTHER AT-RISK PEOPLE IN-PERSON OR ON THE PHONE MULTIPLE
TIMES A DAY.
WATCH FOR THE EARLY SIGNS OF HEAT EXHAUSTION IN YOURSELF AND OTHERS.
SIGNS MAY INCLUDE HEADACHE, NAUSEA, DIZZINESS, THIRST, DARK URINE
AND INTENSE FATIGUE. STOP YOUR ACTIVITY AND DRINK WATER.
HEAT STROKE IS A MEDICAL EMERGENCY(EXCLAMATION MARK) CALL 9-1-1 OR
YOUR EMERGENCY HEALTH PROVIDER IF YOU, OR SOMEONE AROUND YOU, IS
SHOWING SIGNS OF HEAT STROKE WHICH CAN INCLUDE RED AND HOT SKIN,
DIZZINESS, NAUSEA, CONFUSION AND CHANGE IN CONSCIOUSNESS. WHILE YOU
WAIT FOR MEDICAL ATTENTION, TRY TO COOL THE PERSON BY MOVING THEM TO
A COOL PLACE, REMOVING EXTRA CLOTHING, APPLYING COLD WATER OR ICE
PACKS AROUND THE BODY.
FOR MORE INFORMATION:
HTTPS://WWW.CANADA.CA/EN/HEALTH-CANADA/SERVICES/CLIMATE-CHANGE-HEALTH/EXTREME-HEAT/HOW-PROTECT-YOURSELF.HTML
HTTPS://WWW.CANADA.CA/EN/HEALTH-CANADA/SERVICES/CLIMATE-CHANGE-HEALTH/EXTREME-HEAT/WHO-IS-AT-RISK.HTML
PLEASE CONTINUE TO MONITOR ALERTS AND FORECASTS ISSUED BY
ENVIRONMENT CANADA.
TO REPORT SEVERE WEATHER IN ONTARIO, SEND AN EMAIL TO
ONSTORM(AT)EC.GC.CA OR POST REPORTS ON SOCIAL MEDIA USING
(HASH)ONSTORM.
HTTP://WEATHER.GC.CA
END/OSPC
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