Heavy snow fell across all of south-central and southeast Wisconsin, adding to what would become record total snowfall amounts for December. Luckily, wind speeds were only 5 to 15 mph, which minimized the blowing and drifting of the snow. Snowfall amounts were geneally 6 to 8 inches, although a band of  9 to 9.5 inches extended from near Lone Rock along the Wisconsin River east across the northern part of Dane County into west-central Dodge County. Middleton (Dane Co.) came in with 9.6 inches. Janesville (Rock Co.), and Wisconsin Dells (Columbia Co.) both measured 7.0 inches, while 8.2 inches was reported from Ft. Atkinson (Jefferson Co.). The 8.2 inches measured at Madison's (Dane Co.), was a new calendar day record for the 18th, breaking the old one of 3.5 inches set back in 1896.Synoptically, a surface low moved from northern Iowa across northern Illinois to northern Indiana, with an inverted trough of low pressure extending north of the low.  Minor jet coupling was noted aloft.  By the end of December, new snowfall or snowdepth records would be set across all of south-central and southeast Wisconsin.Madison registerd 35.0 inches for the month of December (old one was 32.8 inches in 1987), and on December 29th, tied the old snow depth record of 17 inches set back in 1990.  The 35.0 inches was 287% of normal and 79% of the average winter snowfall! Other locations had montly totals of 30 to 43 inches (roughly 300 to over 500% of normal), or 80 to 133% of the average winter snowfall!  Maximum snowdepths were measured on December 30th, generally ranging from 15 to 25 inches. Monroe (Green Co.) had 31 inches on the ground on the 30th, while Sun Praire (Dane Co.) and Argyle (Lafayette Co.) had 25 inches.

Heavy Snow in SAUK, WISCONSIN
From 18-DEC-00 14:00:00 to 18-DEC-00 23:30:00 (CST)
Reported by: AWOS,ASOS,MESONET,ETC

Heavy Snow in JEFFERSON, WISCONSIN
From 18-DEC-00 14:00:00 to 18-DEC-00 23:30:00 (CST)
Reported by: AWOS,ASOS,MESONET,ETC

Heavy Snow in DODGE, WISCONSIN
From 18-DEC-00 14:00:00 to 18-DEC-00 23:30:00 (CST)
Reported by: AWOS,ASOS,MESONET,ETC

Heavy Snow in LAFAYETTE, WISCONSIN
From 18-DEC-00 14:00:00 to 18-DEC-00 23:30:00 (CST)
Reported by: AWOS,ASOS,MESONET,ETC

Heavy Snow in FOND DU LAC, WISCONSIN
From 18-DEC-00 14:00:00 to 18-DEC-00 23:30:00 (CST)
Reported by: AWOS,ASOS,MESONET,ETC

Heavy Snow in COLUMBIA, WISCONSIN
From 18-DEC-00 14:00:00 to 18-DEC-00 23:30:00 (CST)
Reported by: AWOS,ASOS,MESONET,ETC

Heavy Snow in MARQUETTE, WISCONSIN
From 18-DEC-00 14:00:00 to 18-DEC-00 23:30:00 (CST)
Reported by: AWOS,ASOS,MESONET,ETC

Heavy Snow in GREEN LAKE, WISCONSIN
From 18-DEC-00 14:00:00 to 18-DEC-00 23:30:00 (CST)
Reported by: AWOS,ASOS,MESONET,ETC

Heavy Snow in IOWA, WISCONSIN
From 18-DEC-00 14:00:00 to 18-DEC-00 23:30:00 (CST)
Reported by: AWOS,ASOS,MESONET,ETC

Heavy Snow in ROCK, WISCONSIN
From 18-DEC-00 14:00:00 to 18-DEC-00 23:30:00 (CST)
Reported by: AWOS,ASOS,MESONET,ETC

Heavy Snow in DANE, WISCONSIN
From 18-DEC-00 14:00:00 to 18-DEC-00 23:30:00 (CST)
Reported by: AWOS,ASOS,MESONET,ETC

Heavy Snow in GREEN, WISCONSIN
From 18-DEC-00 14:00:00 to 18-DEC-00 23:30:00 (CST)
Reported by: AWOS,ASOS,MESONET,ETC

Heavy Snow in WALWORTH, WISCONSIN
From 18-DEC-00 14:00:00 to 18-DEC-00 23:30:00 (CST)
Reported by: AWOS,ASOS,MESONET,ETC