WWCN11 CWTO 170835
YELLOW WARNING - SNOW SQUALL
FOR SOUTHERN ONTARIO
UPDATED BY ENVIRONMENT CANADA
AT 4:35 A.M. EDT TUESDAY 17 MARCH 2026.
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YELLOW LEVEL WARNING - SNOW SQUALL - FOR:
      DUFFERIN - INNISFIL.

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IMPACT LEVEL: MODERATE
FORECAST CONFIDENCE: HIGH

==DISCUSSION==

SNOW SQUALLS WITH HAZARDOUS TRAVEL CONDITIONS TODAY. 

WHAT: 
POOR VISIBILITY IN AREAS OF HEAVY SNOW AND BLOWING SNOW. 
LOCAL SNOWFALL AMOUNTS OF 10 TO 15 CM. 
WIND GUSTS TO 70 KM/H. 

WHEN: 
CONTINUING TODAY AND EASING THIS EVENING. 

ADDITIONAL INFORMATION: 
SNOW SQUALLS OFF LAKE HURON WILL BE ACCOMPANIED BY WESTERLY TO 
NORTHWESTERLY WINDS GUSTING TO 70 KM/H AND WILL EXTEND INLAND AT 
TIMES TO THE REGION. HAZARDOUS TRAVEL CONDITIONS INCLUDING NEAR ZERO 
VISIBILITIES AS A RESULT OF HEAVY SNOW AND FREQUENT BLOWING SNOW ARE 
EXPECTED. 

THE PRIMARY HAZARD WILL BE THE POOR VISIBILITY AS OPPOSED TO HEAVY 
SNOWFALL ACCUMULATIONS. 

CONDITIONS ARE EXPECTED TO SLOWLY IMPROVE BEGINNING THIS AFTERNOON.

TRAVEL WILL LIKELY BE HAZARDOUS. VISIBILITY WILL LIKELY BE SUDDENLY 
REDUCED TO NEAR ZERO AT TIMES. ROAD CLOSURES ARE POSSIBLE. PREPARE 
FOR QUICKLY CHANGING AND DETERIORATING TRAVEL CONDITIONS. 

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.

HTTP://WEATHER.GC.CA

END/OSPC