WWCN11 CWTO 200756 YELLOW WARNING - FREEZING RAIN FOR SOUTHERN ONTARIO UPDATED BY ENVIRONMENT CANADA AT 3:56 A.M. EDT FRIDAY 20 MARCH 2026. --------------------------------------------------------------------- YELLOW LEVEL WARNING - FREEZING RAIN - FOR: =NEW= NEWMARKET - GEORGINA - NORTHERN YORK REGION =NEW= INNISFIL - NEW TECUMSETH - ANGUS HALTON HILLS - MILTON CALEDON WATERLOO - WELLINGTON ORANGEVILLE - GRAND VALLEY - SOUTHERN DUFFERIN COUNTY SHELBURNE - MANSFIELD - NORTHERN DUFFERIN COUNTY HANOVER - DUNDALK - SOUTHERN GREY COUNTY. --------------------------------------------------------------------- IMPACT LEVEL: MODERATE FORECAST CONFIDENCE: HIGH ==DISCUSSION== ICE BUILD-UP DUE TO FREEZING RAIN IS EXPECTED. WHAT: FREEZING RAIN WITH ICE BUILD-UP OF 2 TO 5 MM. WHEN: THIS MORNING. ADDITIONAL INFORMATION: FREEZING RAIN IS EXPECTED TO CHANGE OVER TO RAIN LATER THIS MORNING AS TEMPERATURES RISE ABOVE THE ZERO MARK. ROADS AND WALKWAYS WILL LIKELY BECOME ICY AND SLIPPERY. THERE MAY BE A SIGNIFICANT IMPACT ON RUSH HOUR TRAFFIC. LOCAL UTILITY OUTAGES ARE POSSIBLE. THERE IS RISK OF INJURY DUE TO SLIPS AND FALLS. 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