160
WOCN11 CWTO 052123
YELLOW ADVISORY - FROST
FOR SOUTHERN ONTARIO
UPDATED BY ENVIRONMENT CANADA
AT 5:23 P.M. EDT MONDAY 5 OCTOBER 2026.
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YELLOW LEVEL ADVISORY - FROST - FOR:
CITY OF TORONTO
CHATHAM-KENT - RONDEAU PARK
SARNIA - LAMBTON
NIAGARA
CITY OF HAMILTON
MISSISSAUGA - BRAMPTON
BURLINGTON - OAKVILLE.
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IMPACT LEVEL: MODERATE
FORECAST CONFIDENCE: HIGH
==DISCUSSION==
TEMPERATURES ARE EXPECTED TO FALL TO NEAR THE FREEZING MARK TONIGHT
INTO EARLY TUESDAY 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.
HTTP://WEATHER.GC.CA
END/OSPC
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