973
WOCN11 CWTO 250155
YELLOW ADVISORY - FROST
FOR SOUTHERN ONTARIO
UPDATED BY ENVIRONMENT CANADA
AT 9:55 P.M. EDT THURSDAY 24 SEPTEMBER 2026.
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YELLOW LEVEL ADVISORY - FROST - FOR:
GATINEAU
UXBRIDGE - BEAVERTON - NORTHERN DURHAM REGION
NEWMARKET - GEORGINA - NORTHERN YORK REGION
MOUNT FOREST - ARTHUR - NORTHERN WELLINGTON COUNTY
DUFFERIN - INNISFIL
OWEN SOUND - BLUE MOUNTAINS - NORTHERN GREY COUNTY
SAUGEEN SHORES - KINCARDINE - SOUTHERN BRUCE COUNTY
HANOVER - DUNDALK - SOUTHERN GREY COUNTY
BARRIE - ORILLIA - MIDLAND
PETERBOROUGH - KAWARTHA LAKES
BANCROFT - BON ECHO PARK
MERRICKVILLE-WOLFORD - KEMPTVILLE
BROCKVILLE - PRESCOTT
CITY OF OTTAWA
PRESCOTT AND RUSSELL
CORNWALL - MORRISBURG
SMITHS FALLS - LANARK - SHARBOT LAKE
PARRY SOUND - MUSKOKA
HALIBURTON
RENFREW - PEMBROKE - BARRY'S BAY
ALGONQUIN
BURK'S FALLS - BAYFIELD INLET.
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IMPACT LEVEL: MODERATE
FORECAST CONFIDENCE: HIGH
==DISCUSSION==
PATCHY FROST IS EXPECTED OVERNIGHT INTO FRIDAY MORNING.
DAMAGE TO PLANTS, TREES, AND CROPS IS POSSIBLE. TAKE PREVENTATIVE
MEASURES TO PROTECT COLD-SENSITIVE PLANTS, TREES, AND CROPS. COVER
UP PLANTS, ESPECIALLY THOSE IN FROST-PRONE AREAS.
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. TO REPORT SEVERE WEATHER IN GATINEAU, SEND AN EMAIL
TO ONSTORM(AT)EC.GC.CA OR POST REPORTS ON SOCIAL MEDIA USING
(HASH)QCSTORM.
HTTP://WEATHER.GC.CA
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