Snow affecting Southern Wisconsin on January 27th became mixed with some freezing rain and sleet which resulted in hazardous driving conditions.  There were brief heavy showers of sleet and bursts of snow with isolated elevated thunderstorms.  The mix of snow...sleet and freezing rain left a glaze 0.1 to 0.2 inch thick on area roads and exposed surfaces...with snow accumulations of 1/2 inch to nearly 2 inches adding to the slick travel conditions.  The precipitation changed over to all rain from south to north during the evening and overnight hours as low-level warm air overspread the region.  The warm air was related to a warm front moving north through the western Great Lake Region.  In fact, about 5,000 feet above the ground there was a 50-knot (58 mph) low-level southerly jet that provide the energy and moisture for the isolated thunderstorms.

Winter Weather in DODGE, WISCONSIN
From 27-JAN-13 12:00:00 to 28-JAN-13 03:00:00 (CST-6)
Reported by: COOP Observer

Winter Weather in WASHINGTON, WISCONSIN
From 27-JAN-13 12:00:00 to 28-JAN-13 03:00:00 (CST-6)
Reported by: COOP Observer

Winter Weather in JEFFERSON, WISCONSIN
From 27-JAN-13 12:00:00 to 28-JAN-13 03:00:00 (CST-6)
Reported by: COOP Observer

Winter Weather in WAUKESHA, WISCONSIN
From 27-JAN-13 12:00:00 to 28-JAN-13 03:00:00 (CST-6)
Reported by: COOP Observer

Winter Weather in SHEBOYGAN, WISCONSIN
From 27-JAN-13 12:00:00 to 27-JAN-13 23:45:00 (CST-6)
Reported by: COOP Observer

Winter Weather in OZAUKEE, WISCONSIN
From 27-JAN-13 12:00:00 to 27-JAN-13 23:45:00 (CST-6)
Reported by: COOP Observer

Winter Weather in MILWAUKEE, WISCONSIN
From 27-JAN-13 12:00:00 to 27-JAN-13 23:45:00 (CST-6)
Reported by: COOP Observer

Winter Weather in IOWA, WISCONSIN
From 27-JAN-13 12:00:00 to 27-JAN-13 23:45:00 (CST-6)
Reported by: COOP Observer

Winter Weather in DANE, WISCONSIN
From 27-JAN-13 12:00:00 to 27-JAN-13 23:45:00 (CST-6)
Reported by: COOP Observer

Winter Weather in LAFAYETTE, WISCONSIN
From 27-JAN-13 12:00:00 to 27-JAN-13 23:45:00 (CST-6)
Reported by: COOP Observer

Winter Weather in GREEN, WISCONSIN
From 27-JAN-13 12:00:00 to 27-JAN-13 23:45:00 (CST-6)
Reported by: COOP Observer

Winter Weather in ROCK, WISCONSIN
From 27-JAN-13 12:00:00 to 27-JAN-13 23:45:00 (CST-6)
Reported by: COOP Observer

Winter Weather in WALWORTH, WISCONSIN
From 27-JAN-13 12:00:00 to 27-JAN-13 23:45:00 (CST-6)
Reported by: COOP Observer

Winter Weather in RACINE, WISCONSIN
From 27-JAN-13 12:00:00 to 27-JAN-13 23:45:00 (CST-6)
Reported by: COOP Observer

Winter Weather in KENOSHA, WISCONSIN
From 27-JAN-13 12:00:00 to 27-JAN-13 23:45:00 (CST-6)
Reported by: COOP Observer

Winter Weather in MARQUETTE, WISCONSIN
From 27-JAN-13 12:00:00 to 28-JAN-13 03:00:00 (CST-6)
Reported by: COOP Observer

Winter Weather in GREEN LAKE, WISCONSIN
From 27-JAN-13 12:00:00 to 28-JAN-13 03:00:00 (CST-6)
Reported by: COOP Observer

Winter Weather in FOND DU LAC, WISCONSIN
From 27-JAN-13 12:00:00 to 28-JAN-13 03:00:00 (CST-6)
Reported by: COOP Observer

Winter Weather in SAUK, WISCONSIN
From 27-JAN-13 12:00:00 to 28-JAN-13 03:00:00 (CST-6)
Reported by: COOP Observer

Winter Weather in COLUMBIA, WISCONSIN
From 27-JAN-13 12:00:00 to 28-JAN-13 03:00:00 (CST-6)
Reported by: COOP Observer