943
WWCN12 CWTO 190458
YELLOW WARNING - RAINFALL
FOR NORTHERN ONTARIO
UPDATED BY ENVIRONMENT CANADA
AT 11:58 P.M. EST THURSDAY 18 DECEMBER 2025.
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YELLOW LEVEL WARNING - RAINFALL - FOR:
GREATER SUDBURY AND VICINITY
ESPANOLA - KILLARNEY
WEST NIPISSING - FRENCH RIVER.
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IMPACT LEVEL: MODERATE
FORECAST CONFIDENCE: HIGH
==DISCUSSION==
RAINFALL, COMBINED WITH MELTING SNOW, IS EXPECTED. THE FROZEN GROUND
HAS A REDUCED ABILITY TO ABSORB THIS RAINFALL.
WHAT:
TOTAL RAINFALL AMOUNTS OF 20 TO 30 MM.
WHEN:
CONTINUING THROUGH EARLY FRIDAY MORNING.
ADDITIONAL INFORMATION:
RAIN WILL CONTINUE TONIGHT BEFORE CHANGING OVER TO SNOW EARLY FRIDAY
MORNING AS TEMPERATURES RAPIDLY FALL BELOW THE FREEZING MARK.
ROOFS OF WEAK STRUCTURES ARE AT AN INCREASED RISK OF COLLAPSE UNDER
THE WEIGHT OF SNOW.
FOR INFORMATION CONCERNING FLOODING, PLEASE CONSULT YOUR LOCAL
CONSERVATION AUTHORITY OR ONTARIO MINISTRY OF NATURAL RESOURCES
OFFICE. VISIT ONTARIO.CA/FLOODS FOR THE LATEST DETAILS.
WATER WILL LIKELY POOL ON ROADS AND IN LOW-LYING AREAS.
PLEASE CONTINUE TO MONITOR ALERTS AND FORECASTS ISSUED BY
ENVIRONMENT CANADA. TO REPORT SEVERE WEATHER, 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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