WOCN11 CWTO 031440

YELLOW ADVISORY - FROST

FOR SOUTHERN ONTARIO

ISSUED BY ENVIRONMENT CANADA

AT 10:40 A.M. EDT SATURDAY 3 OCTOBER 2026.

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YELLOW LEVEL ADVISORY - FROST - FOR:

=NEW= GATINEAU

=NEW= BELLEVILLE - QUINTE WEST - EASTERN NORTHUMBERLAND COUNTY

=NEW= KINGSTON - ODESSA - FRONTENAC ISLANDS

=NEW= NAPANEE - CONSECON

=NEW= APSLEY - WOODVIEW - NORTHERN PETERBOROUGH COUNTY

=NEW= PETERBOROUGH CITY - LAKEFIELD - SOUTHERN PETERBOROUGH COUNTY

=NEW= STIRLING - TWEED - SOUTH FRONTENAC

=NEW= BROCKVILLE - LEEDS AND GRENVILLE

=NEW= CITY OF OTTAWA

=NEW= PRESCOTT AND RUSSELL

=NEW= CORNWALL - MORRISBURG

=NEW= SMITHS FALLS - LANARK - SHARBOT LAKE.



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IMPACT LEVEL: MODERATE

FORECAST CONFIDENCE: HIGH



==DISCUSSION==



TEMPERATURES ARE EXPECTED TO FALL TO NEAR THE FREEZING MARK TONIGHT 

INTO SUNDAY MORNING.



DAMAGE TO PLANTS, TREES, AND CROPS IS POSSIBLE. 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



END/OSPC