581
WOCN11 CWTO 121212
YELLOW ADVISORY - FROST
FOR SOUTHERN ONTARIO
ENDED BY ENVIRONMENT CANADA
AT 8:12 A.M. EDT TUESDAY 12 MAY 2026.
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YELLOW LEVEL ADVISORY - FROST - ENDED FOR:
GATINEAU
CHATHAM-KENT - RONDEAU PARK
SARNIA - LAMBTON
ELGIN
LONDON - MIDDLESEX
SIMCOE - DELHI - NORFOLK
DUNNVILLE - CALEDONIA - HALDIMAND
OXFORD - BRANT
NIAGARA
CITY OF HAMILTON
CALEDON
MISSISSAUGA - BRAMPTON
HALTON HILLS - MILTON
YORK - DURHAM
HURON - PERTH
GUELPH - ERIN - SOUTHERN WELLINGTON COUNTY
KITCHENER - CAMBRIDGE - REGION OF WATERLOO
BELLEVILLE - QUINTE - NORTHUMBERLAND
KINGSTON - PRINCE EDWARD
STIRLING - TWEED - SOUTH FRONTENAC
BROCKVILLE - LEEDS AND GRENVILLE
CITY OF OTTAWA
PRESCOTT AND RUSSELL
CORNWALL - MORRISBURG
SMITHS FALLS - LANARK - SHARBOT LAKE.
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==DISCUSSION==
WIDESPREAD FROST IS NO LONGER EXPECTED.
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