152
WOCN11 CWTO 111440
YELLOW ADVISORY - FROST
FOR SOUTHERN ONTARIO
UPDATED BY ENVIRONMENT CANADA
AT 10:40 A.M. EDT MONDAY 11 MAY 2026.
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YELLOW LEVEL ADVISORY - FROST - FOR:
=NEW= GATINEAU
=NEW= CHATHAM-KENT - RONDEAU PARK
=NEW= SARNIA - LAMBTON
=NEW= ELGIN
=NEW= STRATHROY - KOMOKA - WESTERN MIDDLESEX COUNTY
=NEW= SIMCOE - DELHI - NORFOLK
=NEW= DUNNVILLE - CALEDONIA - HALDIMAND
=NEW= MISSISSAUGA - BRAMPTON
=NEW= BELLEVILLE - QUINTE - NORTHUMBERLAND
=NEW= KINGSTON - ODESSA - FRONTENAC ISLANDS
=NEW= NAPANEE - CONSECON
=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
LONDON - PARKHILL - EASTERN MIDDLESEX COUNTY
OXFORD - BRANT
CITY OF HAMILTON
CALEDON
HALTON HILLS - MILTON
YORK - DURHAM
HURON - PERTH
GUELPH - ERIN - SOUTHERN WELLINGTON COUNTY
KITCHENER - CAMBRIDGE - REGION OF WATERLOO.
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IMPACT LEVEL: MODERATE
FORECAST CONFIDENCE: HIGH
==DISCUSSION==
FROST MAY DAMAGE SOME CROPS IN FROST-PRONE AREAS.
PATCHY FROST IS EXPECTED OVERNIGHT AND INTO EARLY TUESDAY 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. TO
REPORT SEVERE WEATHER IN GATINEAU, SEND AN EMAIL TO
ONSTORM(AT)EC.GC.CA OR POST REPORTS ON X USING (HASH)QCSTORM.
HTTP://WEATHER.GC.CA
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