WWCN11 CWTO 110507

YELLOW WARNING - SNOWFALL

FOR SOUTHERN ONTARIO

UPDATED BY ENVIRONMENT CANADA

AT 12:07 A.M. EST THURSDAY 11 DECEMBER 2025.

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YELLOW LEVEL WARNING - SNOWFALL - FOR:

=NEW= GANANOQUE - MALLORYTOWN

=NEW= SMITHS FALLS - LANARK - SHARBOT LAKE

=NEW= RENFREW - PEMBROKE - BARRY'S BAY

      BROCKVILLE - PRESCOTT

      WESTPORT - CHARLESTON LAKE

      MERRICKVILLE-WOLFORD - KEMPTVILLE

      CITY OF OTTAWA

      GATINEAU

      PRESCOTT AND RUSSELL

      CORNWALL - MORRISBURG.



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IMPACT LEVEL: MODERATE

FORECAST CONFIDENCE: HIGH



==DISCUSSION==



SNOW AND LOCAL BLOWING SNOW CONTINUES. 



WHAT: 

ADDITIONAL SNOWFALL AMOUNTS OF 2 TO 4 CM. 

REDUCED VISIBILITY IN SNOW AND LOCAL BLOWING SNOW. 



WHEN: 

ENDING FROM WEST TO EAST OVERNIGHT.



TRAVEL WILL LIKELY BE CHALLENGING. ROADS AND WALKWAYS WILL LIKELY BE 

DIFFICULT TO NAVIGATE DUE TO ACCUMULATING SNOW. THERE MAY BE A 

SIGNIFICANT IMPACT ON RUSH HOUR TRAFFIC. VISIBILITY WILL LIKELY BE 

REDUCED AT TIMES. ALLOW EXTRA TIME FOR TRAVEL. 



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. 



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