A major snowstorm is brewing for parts of northwestern Ontario.
Environment Canada says as much as 30 centimetres of snow could fall in some areas.
Meteorologist Geoff Coulson says it is the result of a system that originated in the U.S. Upper Plains states.
“It’s expected to track east and northeast during the coming hours, crossing Lake Superior on Tuesday, Wednesday, and affecting the weather in northeastern Ontario into Thursday,” says Coulson.
The storm could hit Fort Frances and Atikokan on Tuesday morning, but only leave a few centimetres of snow.
Coulson says Thunder Bay is expected to be hit harder.
“Bigger impacts as we get closer to Thunder Bay, where snow will begin in the Thunder Bay area late in the day on Tuesday, continue right into the early morning hours of Thursday. They could be looking at 15 to 25 centimetres potentially in that area.”
Coulson says up to 30 centimetres could fall in some areas by the time the system moves away on Thursday.
Advisories have been changing all day, with initial expectations that the storm could also reach into areas to the east of Dryden.
The storm is also coming with strong winds that could impact travel on the region’s roadways.
“So, not only a fairly long duration snow event, but also that snow being blown around by fairly gusty winds
“Initially, those winds will be from the northeast on late Tuesday into the day on Wednesday. Then those winds will become more from the north as the day progresses on Wednesday.”
Coulson says upon the storm’s departure, temperatures are expected to return to more seasonable levels with daytime highs in Fort Frances reaching -6 C and -4 C in Thunder Bay.