A low pressure system tracked east across the Ohio River Valley, bringing widespread light to moderate snow to southern Wisconsin. The track of this system allowed lake enhanced snow to develop under east to northeast flow for the counties bordering Lake Michigan, which is where the heaviest snow fell during the event.

Winter Weather in SAUK, WISCONSIN
From 30-JAN-21 17:55:00 to 31-JAN-21 19:15:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Reports of 3-5 inches of snow.

Winter Storm in WALWORTH, WISCONSIN
From 30-JAN-21 16:55:00 to 31-JAN-21 21:15:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Multiple reports of 5 to 7 inches of snow.

Winter Storm in WASHINGTON, WISCONSIN
From 30-JAN-21 18:15:00 to 31-JAN-21 17:35:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Multiple reports of 8 to 10 inches of snow across the eastern half of Washington County, where lake enhanced snow and persistent banding lingered. The western half of the county saw 4 to 6 inches of snow.

Winter Storm in WAUKESHA, WISCONSIN
From 30-JAN-21 18:25:00 to 31-JAN-21 19:45:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Eastern half of Waukesha County was hardest hit, with widespread reports of 6 to 9 inches of snow where lake enhanced snow was more persistent. The western half of the county saw lesser amounts of 4 to 6 inches of snow.

Winter Storm in RACINE, WISCONSIN
From 30-JAN-21 17:13:00 to 31-JAN-21 20:31:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Multiple reports of 6 to 8 inches of snow across the western half of Racine County. The eastern half of the county saw higher snowfall totals, with reports ranging from 10 to 13 inches of snow. East to northeast winds gusting to 30-35 mph caused significant blowing and drifting snow, and contributed to reduced visibilities during the event.

Winter Storm in MILWAUKEE, WISCONSIN
From 30-JAN-21 17:52:00 to 31-JAN-21 19:52:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Multiple reports of 8 to 10 inches of snow, with localized reports of 11 inches of snow in spots. East to northeast winds gusting to 40 mph caused significant blowing and drifting snow, and contributed to reduced visibilities during the event. The Milwaukee Sheriff's Office responded to 184 weather-related service calls during the event.

Winter Storm in OZAUKEE, WISCONSIN
From 30-JAN-21 18:15:00 to 31-JAN-21 17:35:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Multiple reports of 10 to 12 inches of snow. East to northeast winds gusting to 35-40 mph caused significant blowing and drifting snow, and contributed to reduced visibilities during the event.

Winter Storm in SHEBOYGAN, WISCONSIN
From 30-JAN-21 20:08:00 to 31-JAN-21 15:53:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Multiple reports of 6-9 inches of snow. East to northeast winds gusting to 30-35 mph caused significant blowing and drifting snow, and contributed to reduced visibilities during the event.

Winter Weather in GREEN LAKE, WISCONSIN
From 30-JAN-21 20:22:00 to 31-JAN-21 18:15:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Report of 2 inches of snow.

Winter Weather in COLUMBIA, WISCONSIN
From 30-JAN-21 17:55:00 to 31-JAN-21 19:15:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Multiple reports of 3-5 inches of snow.

Winter Weather in DANE, WISCONSIN
From 30-JAN-21 17:34:00 to 31-JAN-21 18:22:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Multiple reports of 4-6 inches of snow.

Winter Weather in DODGE, WISCONSIN
From 30-JAN-21 19:15:00 to 31-JAN-21 17:35:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Multiple reports of 3-5 inches of snow.

Winter Weather in FOND DU LAC, WISCONSIN
From 30-JAN-21 20:22:00 to 31-JAN-21 17:03:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Multiple reports of 1-2 inches of snow around the Fond du Lac area. Snow totals were locally higher in Ripon, with 3-4 inches of snow.

Winter Storm in GREEN, WISCONSIN
From 30-JAN-21 16:55:00 to 31-JAN-21 18:15:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Multiple reports of 4-7 inches of snow.

Winter Weather in IOWA, WISCONSIN
From 30-JAN-21 16:56:00 to 31-JAN-21 18:56:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Multiple reports of 4-5 inches of snow south of Dodgeville.

Winter Weather in JEFFERSON, WISCONSIN
From 30-JAN-21 18:15:00 to 31-JAN-21 17:15:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Multiple reports of 3-5 inches of snow. Highest snowfall total observed was 6 inches in Fort Atkinson.

Winter Storm in KENOSHA, WISCONSIN
From 30-JAN-21 16:35:00 to 31-JAN-21 20:53:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous reports of 7 to 10 inches of snow across the county, with a few localized amounts of 12 inches in the Kenosha area.

Winter Weather in LAFAYETTE, WISCONSIN
From 30-JAN-21 16:35:00 to 31-JAN-21 15:55:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Reports of 4.2 inches of snow in Argyle.

Winter Weather in MARQUETTE, WISCONSIN
From 30-JAN-21 20:22:00 to 31-JAN-21 17:03:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Report of 3 inches in Montello.

Winter Storm in ROCK, WISCONSIN
From 30-JAN-21 17:15:00 to 31-JAN-21 17:45:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Multiple reports of 6-8 inches of snow, especially across the southern half of Rock County.