Heavy snow fell over most of South-central Wisconsin and northwest portions of Southeast Wisconsin as low pressure followed a favored track from southern Missouri to eastern Lower Michigan during the day on January 30th.  Moderate to briefly intense snowfall occurred with snow accumulations of 6 to 10 inches measured generally along and northwest of a Lafayette County to Sheboygan County line.  Peak snow amounts included 10 in Reedsburg (Sauk Co.) and Poynette (Columbia Co.), 9.1 in Berlin (Green Lake Co.), and 9 in Westfield (Marquette Co.).  Increasing northwest winds behind the low produced areas of blowing and drifting snow as wind gusts reached 30 to 35 mph (26 to 29 knots).  Numerous accidents and spin-offs were reported by area law enforcement officials.  Meteorologically, deep forcing with sloped frontogenesis and strong layer Q-vector convergence, combined with some convective instability in and above the dendritic growth zone, fueled the moderate to briefly heavy snowfall intensities.

Winter Storm in GREEN LAKE, WISCONSIN
From 30-JAN-13 05:00:00 to 30-JAN-13 17:48:00 (CST-6)
Reported by: COOP Observer

A co-operative observer 3 miles south of Berlin reported total snow accumulations of 9.1 inches.

Winter Storm in FOND DU LAC, WISCONSIN
From 30-JAN-13 06:00:00 to 30-JAN-13 17:48:00 (CST-6)
Reported by: COOP Observer

A co-operative observer in Taycheedah/St. Peters area reported total snow accumulations of 8.5 inches.

Winter Storm in SHEBOYGAN, WISCONSIN
From 30-JAN-13 07:00:00 to 30-JAN-13 17:48:00 (CST-6)
Reported by: COOP Observer

A co-operative observer in an unincorporated area in the northwest corner of Sheboygan County estimated total snow accumulations of 6.0 inches.

Winter Storm in SAUK, WISCONSIN
From 30-JAN-13 04:00:00 to 30-JAN-13 17:48:00 (CST-6)
Reported by: COOP Observer

A co-operative observer in Reedsburg reported total snow accumulations of 10.0 inches.

Winter Storm in DODGE, WISCONSIN
From 30-JAN-13 06:00:00 to 30-JAN-13 17:48:00 (CST-6)
Reported by: COOP Observer

A co-operative observer in the town of Westford reported total snow accumulations of 7.7 inches.

Winter Storm in IOWA, WISCONSIN
From 30-JAN-13 05:00:00 to 30-JAN-13 17:48:00 (CST-6)
Reported by: COOP Observer

A co-operative observer in the Dodgeville reported total snow accumulations of 7.0 inches.

Winter Storm in DANE, WISCONSIN
From 30-JAN-13 06:00:00 to 30-JAN-13 17:48:00 (CST-6)
Reported by: COOP Observer

A co-operative observer 8 miles southwest of Madison reported total snow accumulations of 7.5 inches.

Winter Storm in LAFAYETTE, WISCONSIN
From 30-JAN-13 05:00:00 to 30-JAN-13 17:48:00 (CST-6)
Reported by: COOP Observer

A co-operative observer in Darlington reported total snow accumulations of 6.5 inches.

Winter Storm in GREEN, WISCONSIN
From 30-JAN-13 06:00:00 to 30-JAN-13 17:48:00 (CST-6)
Reported by: Public

The public in an unincorporated area in the northwest corner of Green County estimated total snow accumulations of 6.0 inches.

Winter Storm in COLUMBIA, WISCONSIN
From 30-JAN-13 06:00:00 to 30-JAN-13 17:48:00 (CST-6)
Reported by: COOP Observer

A co-operative observer in Poynette reported total snow accumulations of 10.0 inches.

Winter Storm in MARQUETTE, WISCONSIN
From 30-JAN-13 04:00:00 to 30-JAN-13 17:48:00 (CST-6)
Reported by: COOP Observer

A co-operative observer in Westfield reported total snow accumulations of 9.0 inches.