Wisconsin, 2000

Heavy Snow in Wisconsin, December 18 to 19, 2000

December 18 to 19, 2000 · NWS MKX · 7 events in 7 counties and zones

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 generally 10 to 20 mph, which minimized the blowing and drifting of the snow.

Where it happened

Every event with a place to put it; 7 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
7

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS MKX wrote it up.

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 generally 10 to 20 mph, which minimized the blowing and drifting of the snow. Snowfall amounts were geneally 6 to 8 inches, although a band of lake-enhanced amounts of 10 to 14.5 inches was noted from Sheboygan County to Racine County. A location northeast of Milwaukee's Mitchell Field gathered 14.5 inches and Howards Grove (Sheboygan Co.) came in with 14.0 inches. Mitchell Field registered 10.5 inches, while in Racine County, 10.0 inches were measured in Caledonia. The 8.1 inches measured at Mitchell Field was a new calendar day record for the 18th, breaking the old one of 7.1 inches set back in 1929.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.Milwaukee registerd a whopping 49.5 inches for the month of December (old one was 30.7 inches in 1951), and on December 21st, set a new December snow depth record of 32 inches (old record was 18 inches in 1978). The 49.5 inches was 430% of normal and 105% of the average winter snowfall! Other locations had monthly totals of 30 to 55.5 inches (roughly 250 to 694% of normal), or 65 to 145% of the average winter snowfall! Port Washington (Ozaukee County) was the location with the greatest totals and percentages just mentioned. Maximum snowdepths were measured on December 30th, generally ranging from 15 to 25 inches, although at least 30 inches was on the ground from southern Ozaukee County to northern Kenosha County. Racine had the most with 34 inches on the ground, while other notables were Mitchell Field with 30, Germantown (Washington Co.) with 27, and 20 inches at Waukesha (Waukesha Co.).

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

7 heavy snow. Local standard time, as filed.

Heavy Snow, Sheboygan

When
December 18, 3:00 PM CST to December 19, 4:00 AM CST
Where
Sheboygan forecast zone
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
43.756, -87.800 (the zone’s center; the record gives no point)

Heavy Snow, Washington

When
December 18, 3:00 PM CST to December 19, 4:00 AM CST
Where
Washington forecast zone
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
43.369, -88.231 (the zone’s center; the record gives no point)

Heavy Snow, Ozaukee

When
December 18, 3:00 PM CST to December 19, 4:00 AM CST
Where
Ozaukee forecast zone
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
43.403, -87.891 (the zone’s center; the record gives no point)

Heavy Snow, Waukesha

When
December 18, 3:00 PM CST to December 19, 4:00 AM CST
Where
Waukesha forecast zone
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
43.018, -88.304 (the zone’s center; the record gives no point)

Heavy Snow, Milwaukee

When
December 18, 3:00 PM CST to December 19, 4:00 AM CST
Where
Milwaukee forecast zone
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
43.022, -87.929 (the zone’s center; the record gives no point)

Heavy Snow, Racine

When
December 18, 3:00 PM CST to December 19, 4:00 AM CST
Where
Racine forecast zone
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
42.730, -87.812 (the zone’s center; the record gives no point)

Heavy Snow, Kenosha

When
December 18, 3:00 PM CST to December 19, 4:00 AM CST
Where
Kenosha forecast zone
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
42.573, -87.840 (the zone’s center; the record gives no point)

What these are

Heavy Snow
Snowfall reaching the local warning threshold without the other hazards of a winter storm.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Wisconsin in 2000Every state in 2000This day in weather historyWarnings in Wisconsin, December 2000

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5177427, 5177428, 5177429, 5177897, 5177898, 5177899, 5177900.