A winter storm affected parts of South-central and Southeast Wisconsin with steady moderate to heavy snow.  Snowfall accumulations of 8 to 12 inches were reported over the eastern counties of Southeast Wisconsin...with the lake-influence clearly noted by the higher 12 to 18 inch accumulations where the landmass extends out into the lake around Wind Point in Racine County and eastern Sheboygan County. Oostburg, in southeast Sheboygan County, recorded 18.6 inches of snow. The rapidly accumulating heavy snows made it difficult for plowing crews to keep area roadways passable, causing closures of county roads. The rapid accumulation of snow made it difficult to keep roads clear, even in the larger cities in the east, where the snow intensity was enhanced by convergent flow along the Lake Michigan shoreline.  The most rapid accumulations occurred during the early evening of February 26th, and continued overnight into the morning hours of February 27th.
This winter storm was due to a deformation zone on the north side of low pressure that tracked from Missouri, across Illinois to Lower Michigan.  The deformation zone lifted north through southern Wisconsin during the late afternoon and evening hours of February 26th, then stalled in an east-west fashion over East-Central Wisconsin during the overnight hours, with an easterly flow feeding additional lake moisture into the system.  Later on the deformation zone rotated to a more north-south line and dropped southeast through Southeast Wisconsin during the early morning of February 27th as the low pulled away to the east.

Winter Storm in WASHINGTON, WISCONSIN
From 26-FEB-13 16:00:00 to 27-FEB-13 06:45:00 (CST-6)
Reported by: COOP Observer

Snowfall over Washington County ranged from 6 to around 10 inches. A snow total of 9.6 inches was reported in West Bend.

Winter Storm in DANE, WISCONSIN
From 26-FEB-13 17:00:00 to 27-FEB-13 07:45:00 (CST-6)
Reported by: COOP Observer

Snowfall over Dane County ranged from 6 inches to around 9 inches. A snow total of 8.6 inches was reported in Middleton.

Winter Storm in FOND DU LAC, WISCONSIN
From 26-FEB-13 17:30:00 to 27-FEB-13 10:45:00 (CST-6)
Reported by: COOP Observer

Snowfall in the southeast corner of Fond Du Lac County totaled 6 to 8 inches. A snow total of 8 inches was reported east of Campbellsport.

Winter Storm in SHEBOYGAN, WISCONSIN
From 26-FEB-13 17:00:00 to 27-FEB-13 10:45:00 (CST-6)
Reported by: COOP Observer

Snowfall across the county ranged from 8 to 10 inches in the western half to 12 to around 19 inches in the east. 18.6 inches of snow was reported in Oostburg.

Winter Storm in OZAUKEE, WISCONSIN
From 26-FEB-13 15:30:00 to 27-FEB-13 10:45:00 (CST-6)
Reported by: COOP Observer

Snowfall over Ozaukee County ranged from 8 to 13 inches. A snow total of 13.0 inches was reported in Belgium.

Winter Storm in WAUKESHA, WISCONSIN
From 26-FEB-13 15:00:00 to 27-FEB-13 06:45:00 (CST-6)
Reported by: COOP Observer

Snowfall over Waukesha County ranged from 6 inches west to around 9 inches in the southeast. A snow total of 8.5 inches was reported in Muskego.

Winter Storm in MILWAUKEE, WISCONSIN
From 26-FEB-13 14:00:00 to 27-FEB-13 10:45:00 (CST-6)
Reported by: COOP Observer

Snowfall over Milwaukee County ranged from 8 inches to around 12 inches. A snow total of 11.7 inches was reported in Franklin.

Winter Storm in WALWORTH, WISCONSIN
From 26-FEB-13 13:00:00 to 27-FEB-13 06:45:00 (CST-6)
Reported by: COOP Observer

Snowfall over Walworth County ranged from 6 inches in western sections to around 8 inches in the far southeast. A snow total of 8 inches was reported east of Genoa City.

Winter Storm in RACINE, WISCONSIN
From 26-FEB-13 13:00:00 to 27-FEB-13 10:45:00 (CST-6)
Reported by: COOP Observer

Snowfall over Racine County ranged from 6 inches in western sections to around 14 inches in the far east. A snow total of 13.5 inches was reported in the City of Racine.

Winter Storm in KENOSHA, WISCONSIN
From 26-FEB-13 12:00:00 to 27-FEB-13 10:45:00 (CST-6)
Reported by: COOP Observer

Snowfall over Racine County ranged from 8 inches in western sections to around 14 inches in the far east. A snow total of 13.8 inches was reported 6 miles northwest of the City of Kenosha.