SNOWFALL WARNING for most OntarioNewsNorth.com readers
Snowfall warning for Marathon – Schreiber – Manitouwadge – Geraldton – Longlac – Caramat – Nakina – Aroland – Pagwa – Wawa – Pukaskwa – White River – Dubreuilville issued 15 to 25 cm of snow beginning this evening.
Highway 17 during snowstorm last March. Photo OntarioNewsNorth.com
A low pressure system moving over Lake Superior is expected to intensify into a winter storm tonight then track across Northeastern Ontario into Northwestern Quebec on Friday. Mild air in advance of this winter storm will be quickly pushed out by a cold front with quickly falling temperatures and snow, heavy at times, being ushered in by brisk northerly winds in the wake of the front.
Total snowfall amounts of 15 to 25 cm are likely by Friday evening. The snow may be preceded by a brief period of freezing rain and ice pellets in many localities. The snow will taper off from west to east later Friday and Friday night as the storm centre moves further away into Northwestern Quebec.
Driving conditions will quickly deteriorate tonight after the snow arrives. Motorists should be prepared for hazardous driving conditions due to accumulating snow on untreated roads and low visibility in heavy snow.
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A low pressure area moving from the Lakehead area near Thunder Bay out over Lake Superior will drag a fairly sharp Arctic cold front east with it across the regions tonight.
Showers near the cold front will quickly change over to some snow in its wake tonight as temperatures fall to well below freezing by morning. A brief period of freezing rain and ice pellets is possible during the changeover, as reported at Sioux Lookout in the Afternoon.
Total snowfall amounts will range from 2 to 4 cm over western parts to 5-10 cm in areas near Western Lake Superior and Lake Nipigon. The Lakehead area near Thunder Bay will also likely receive at least 5 cm of snow by morning.
There is still some uncertainty as to total snowfall amounts near Western Lake Superior. If the low pressure area intensifies faster than expected, there is some potential for more significant snowfall amounts in these regions.
Motorists should be prepared for deteriorating winter driving conditions as untreated roads may become slippery in the wintery precipitation.
Higher total snowfalls of 15 cm or more are expected for areas extending from Geraldton to Schreiber and further east, where snowfall warnings are in effect. The public is advised to monitor future forecasts and warnings as warnings may be required or extended.
Please monitor the latest forecasts and warnings from Environment Canada at www.weatheroffice.gc.ca
