113
WWCN11 CWTO 281734
YELLOW WARNING - RAINFALL
FOR SOUTHERN ONTARIO
UPDATED BY ENVIRONMENT CANADA
AT 12:34 P.M. EST SUNDAY 28 DECEMBER 2025.
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YELLOW LEVEL WARNING - RAINFALL - FOR:
ST. THOMAS - AYLMER - EASTERN ELGIN COUNTY
LONDON - PARKHILL - EASTERN MIDDLESEX COUNTY
SIMCOE - DELHI - NORFOLK
DUNNVILLE - CALEDONIA - HALDIMAND
OXFORD - BRANT
NIAGARA
CITY OF HAMILTON
GODERICH - BLUEWATER - SOUTHERN HURON COUNTY
STRATFORD - MITCHELL - SOUTHERN PERTH COUNTY.
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IMPACT LEVEL: HIGH
FORECAST CONFIDENCE: MODERATE
==DISCUSSION==
RAIN, HEAVY AT TIMES IS EXPECTED. THE FROZEN GROUND HAS A REDUCED
ABILITY TO ABSORB THIS RAINFALL.
WHAT:
TOTAL RAIN AND FREEZING RAIN AMOUNTS 30 TO 60 MM WITH LOCALLY HIGHER
AMOUNTS POSSIBLE.
WHEN:
CONTINUING TODAY AND ENDING OVERNIGHT.
ADDITIONAL INFORMATION:
RAIN WILL BE HEAVY AT TIMES THROUGH THE AFTERNOON AND EVENING. ANY
FREEZING RAIN WILL CHANGE OVER TO RAIN LATER THIS AFTERNOON OR EARLY
THIS EVENING. THERE WILL BE THE RISK FOR A FEW ISOLATED
THUNDERSTORMS AS WELL. THE RAIN WILL EASE OVERNIGHT.
IF POSSIBLE, CLEAR STORM DRAINS OF SNOW AND ICE.
LOCALIZED FLOODING IS POSSIBLE. SOME ROADS MAY BECOME IMPASSABLE.
DON'T DRIVE THROUGH FLOODED ROADWAYS. AVOID LOW-LYING AREAS. STAY
AWAY FROM RIVERS, CREEKS AND CULVERTS.
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.
FOR MORE INFORMATION ABOUT THE ALERTING PROGRAM, PLEASE VISIT:
HTTPS://WWW.CANADA.CA/EN/SERVICES/ENVIRONMENT/WEATHER/SEVEREWEATHER/WEATHER-ALERTS/COLOUR-CODED-ALERTS.
HTTP://WEATHER.GC.CA
END/OSPC
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