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Wind Chill

Wind chill warning for: City of Toronto

WIND CHILL VALUES OF MINUS 30 EXPECTED ACROSS ALL OF SOUTHERN ONTARIO TONIGHT AND VALUES NEAR MINUS 40 OVER PORTIONS OF EASTERN ONTARIO TONIGHT. THIS IS A WARNING THAT EXTREME WIND CHILL CONDITIONS ARE IMMINENT or OCCURRING IN THESE REGIONS.

EXTREMELY COLD ARCTIC AIR HAS FLOODED OVER THE GREAT LAKES BASIN. THE WEST TO NORTHWESTERLY FLOW OFF LAKE HURON AND GEORGIAN BAY IS GENERATING SNOWSQUALLS AFFECTING AREAS TO THE EAST OF GEORGIAN BAY AND LAKE HURON. THE MOST INTENSE SQUALL HAS SWEPT SOUTHWARD AND IS AFFECTING AREAS FROM PORT ELGIN TO JUST NORTHWEST OF orANGEVILLE. THIS SQUALL IS FORECAST TO REMAIN NEARLY STATIONARY THIS MORNING AND MOST OF THE AFTERNOON BEFORE IT MOVES DRIFTS NORTHWARD INTO THE WIARTON TO COLLINGWOOD AREA THIS EVENING IN A MORE WEAKENED STATE. LOCAL SNOW FALL RATES IN THE 5 TO 10 CENTIMETRES RANGE ARE POSSIBLE UNDER THE MOST INTENSE SQUALL ESPECIALLY THIS MORNING. LOCAL SNOW AMOUNTS IN THE 15 TO 25 CENTIMETRES ARE LIKELY BY TONIGHT ESPECIALLY IN THE GREY - BRUCE REGION. OTHER BANDS OF SNOW COMING OFF LAKE HURON ARE GIVING THE AREA BETWEEN KINCARDINE AND GODERICH SNOWFALL RATES OF 2 TO 5 CENTIMETRES PER HOUR. LOCAL WHITEOUTS AND EXTREME CAUTION IS ADVISED AS TRAVEL WILL BE VERY HAZARDOUS IN THE SNOW SQUALL WARNED AREAS WITH LOW VISIBILITIES IN FALLING AND BLOWING SNOW AND HIGH WINDCHILL VALUES. COLD TEMPERATURES COMBINED WITH WESTERLY WINDS GUSTING TO 50 KM/H ARE GIVING WIND CHILL VALUES NEAR MINUS 30 ACROSS MUCH OF SOUTHWESTERN ONTARIO AND INTO THE GREATER TORONTO AREA THIS MORNING. AS TEMPERATURES WARM THROUGH THE DAY WIND CHILL VALUES WILL RISE TO NEAR MINUS 20. WINDS HAVE NOT BEEN STRONG ENOUGH OVER EASTERN ONTARIO TO GENERATE EXTREME WIND CHILLS. ENVIRONMENT CANADA WILL CONTINUE TO MONITOR THIS EXTREME WEATHER EVENT CLOSELY.

PLEASE REFER TO THE LATEST PUBLIC FORECASTS FOR FURTHER DETAILS.
ISSUED BY ENVIRONMENT CANADA
AT 9:18 AM EST MONDAY 5 FEBRUARY 2007

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