136
WOCN11 CWTO 301934
YELLOW ADVISORY - FROST
FOR SOUTHERN ONTARIO
UPDATED BY ENVIRONMENT CANADA
AT 3:34 P.M. EDT THURSDAY 30 APRIL 2026.
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YELLOW LEVEL ADVISORY - FROST - FOR:
=NEW= CHATHAM-KENT - RONDEAU PARK
=NEW= SARNIA - PETROLIA - WESTERN LAMBTON COUNTY
=NEW= BELLEVILLE - QUINTE - NORTHUMBERLAND
=NEW= KINGSTON - PRINCE EDWARD
=NEW= BROCKVILLE - PRESCOTT
=NEW= GANANOQUE - MALLORYTOWN
CITY OF TORONTO
WATFORD - PINERY PARK - EASTERN LAMBTON COUNTY
ELGIN
LONDON - MIDDLESEX
SIMCOE - DELHI - NORFOLK
DUNNVILLE - CALEDONIA - HALDIMAND
OXFORD - BRANT
NIAGARA
CITY OF HAMILTON
MISSISSAUGA - BRAMPTON
HALTON HILLS - MILTON
BURLINGTON - OAKVILLE
PICKERING - OSHAWA - SOUTHERN DURHAM REGION
VAUGHAN - RICHMOND HILL - MARKHAM.
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IMPACT LEVEL: MODERATE
FORECAST CONFIDENCE: HIGH
==DISCUSSION==
FROST MAY DAMAGE SOME CROPS IN FROST-PRONE AREAS.
WHAT:
PATCHY FROST IS EXPECTED AS TEMPERATURES DROP TO NEAR OR BELOW
FREEZING.
WHEN:
OVERNIGHT INTO EARLY FRIDAY 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 X USING (HASH)ONSTORM.
HTTP://WEATHER.GC.CA
END/OSPC
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