Snowfall Warning Issued for the City of Thunder Bay

Major Weekend Snowstorm to Blanket the Region

Thunder Bay is on alert this weekend with a Snowfall Warning, with total accumulations ranging from 15 to 25 centimetres expected between Sunday morning and Monday morning.

This Alberta Clipper is poised to pack a snowy punch, especially over higher terrain areas west and north of Lake Superior, where the heaviest totals are anticipated.

As of 4:57 PM EDT on Saturday, March 22, 2025, conditions are relatively calm in the city, but a significant shift is on the horizon.

Currently, the temperature sits around -4°C, with northwest winds blowing at 17 km/h, making it feel a touch crisper than the thermometer suggests. Humidity is at 66%, and the barometric pressure sits steady at 101.5 kPa, hinting at the approaching system.

Historically, Thunder Bay has seen its fair share of weather swings on this date. The record high for March 22 is a toasty 13.3°C, while the record low sits at a chilly -30.2°C. So today’s chill? Somewhere in the middle of that historical rollercoaster.

Looking ahead, the snow will start moving in Sunday morning, with the heaviest bursts arriving by early afternoon. Visibility could take a nosedive during periods of intense snowfall, particularly on highways and open roads. Travel is expected to become tricky, if not treacherous, through the day and into early Monday morning, when the snow begins to taper off.

What to Wear:

Sunday’s dress code? Think snow fortress chic. Layer up with a waterproof outer shell, insulated boots, mittens that mean business, and a toque worthy of a true Northerner. Visibility can drop quickly, so if you’re venturing out, make sure you’re dressed to brave the bluster.

Weather Trivia Corner:

Did you know? Thunder Bay holds a snowy title—it’s one of Canada’s snowiest major cities, averaging nearly 224 cm of snowfall each winter! Looks like this storm wants to keep that streak alive.