Heavy Snow — Northern Aitkin, Minnesota

2022-12-14 · Northern Aitkin, Minnesota

Event narrative

Snowfall totals of 6 to 12 inches were reported across the northern part of Aitkin County with a high report of 13.9 inches recorded near McGregor.

Wider weather episode

A powerful, long duration winter storm brought widespread snowfall amounts of 8 to 24 inches across parts of northeast Minnesota and northwest Wisconsin, with areas around Lake Superior receiving up to 30 inches of snow. A wintry mixture of sleet, freezing rain and snow began Tuesday (December 13th) afternoon and evening, spreading northeast overnight Tuesday night and into Wednesday (December 14th) morning. This first wave of precipitation brought a widespread 6 to 12 inches of snow. We had a break in the snowfall during the day on Wednesday, but it started up again Wednesday night and continued into Thursday (December 15th), bringing another 8-20 inches of snow. This second wave of precipitation was nearly all snow, enhanced by the main upper level low pressure system as it moved close to the area. Lighter snow lingered into Friday and Saturday, December 16th and 17th. A low pressure system developed over eastern Colorado early Tuesday, moved northeast to eastern Nebraska by Wednesday morning, then to east-central Minnesota by Thursday morning, lingering there through Friday before moving off to the northeast Friday night and Saturday.

The storm resulted in a long period of poor road conditions, with strong winds causing blowing and drifting snow. There were also widespread power outages, with some people reporting no power for over two days!

Notable with this storm was how wet and heavy the snow was, with 3-day liquid equivalent values of 1 to 4 inches. The wet quality of this snow, unusual for winter storms in this area, heavily weighed down trees and power lines. The density of the snowpack also exacerbated the quality of snow to absorb the red end of the visible light spectrum, transmitting the blue end, which led to many folks observing a glacier blue color in holes and cracks in the snow as they cleared it. Because of this blue color, as well as the very wet quality of the snowfall, NWS Duluth has taken to referring to this snow as the Blue Blizzard of 2022.

Source: NOAA Storm Events Database, event_id 1071505. Narrative written by the NWS forecast office that issued the report.