Wisconsin, 2009

Winter Weather in Wisconsin, January 9 to 10, 2009

January 9 to 10, 2009 · NWS MKX · 8 events in 8 counties and zones

This was round number two of two days of dry, fluffy, snow falling over roughtly the same area in south-central and southeast Wisconsin. ).

Where it happened

Every event with a place to put it; 8 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
8

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.

This was round number two of two days of dry, fluffy, snow falling over roughtly the same area in south-central and southeast Wisconsin. However, the axis of the greatest snow accumulations in round two was south of the Jan 9th winter weather event, and stretched from Janesville (Rock Co.) to La Grange (Walworth Co.) to Kenosha (Kenosha Co.). Specific accumulatins included 8 inches in La Grange, 7.6 inches in Janesville, 7.2 inches just northwest of the the city of Kenosha, 6 inches in Burlington (Racine Co.), an estimated 5 to 6 inches in extreme southeast Green County, 5 inches in Racine (Racine Co.), 3.5 inches at a location 3 miles southeast of Palmyra (Jefferson Co.), and an estimated 3 to 4 inches in southeastern Lafayette County. Since all of this snow fell over a 16-hour period, the impact on society was minimal. Therefore, this event was classified as a Winter Weather event rather than a Winter Storm event. Synoptically, a strong short-wave trough in the upper levels of the atmosphere moved east through the Midwest and concentrated snowfall over south-central and southeast Wisconsin, as well as over northern Illinois.

The radar

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

Open the radar archive at this moment

Event by event

8 winter weather. Local standard time, as filed.

Winter Weather, Jefferson

When
January 9, 9:00 PM CST to January 10, 1:00 PM CST
Where
Jefferson forecast zone
Reported by
COOP Observer
Coordinates
43.021, -88.776 (the zone’s center; the record gives no point)

Winter Weather, Waukesha

When
January 9, 9:00 PM CST to January 10, 1:00 PM CST
Where
Waukesha forecast zone
Reported by
COOP Observer
Coordinates
43.018, -88.304 (the zone’s center; the record gives no point)

Winter Weather, Lafayette

When
January 9, 9:00 PM CST to January 10, 1:00 PM CST
Where
Lafayette forecast zone
Reported by
COOP Observer
Coordinates
42.661, -90.132 (the zone’s center; the record gives no point)

Winter Weather, Green

When
January 9, 9:00 PM CST to January 10, 1:00 PM CST
Where
Green forecast zone
Reported by
COOP Observer
Coordinates
42.680, -89.602 (the zone’s center; the record gives no point)

Winter Weather, Rock

When
January 9, 9:00 PM CST to January 10, 1:00 PM CST
Where
Rock forecast zone
Reported by
COOP Observer
Coordinates
42.671, -89.072 (the zone’s center; the record gives no point)

Winter Weather, Walworth

When
January 9, 9:00 PM CST to January 10, 1:00 PM CST
Where
Walworth forecast zone
Reported by
COOP Observer
Coordinates
42.669, -88.542 (the zone’s center; the record gives no point)

Winter Weather, Racine

When
January 9, 9:00 PM CST to January 10, 1:00 PM CST
Where
Racine forecast zone
Reported by
COOP Observer
Coordinates
42.730, -87.812 (the zone’s center; the record gives no point)

Winter Weather, Kenosha

When
January 9, 9:00 PM CST to January 10, 1:00 PM CST
Where
Kenosha forecast zone
Reported by
COOP Observer
Coordinates
42.573, -87.840 (the zone’s center; the record gives no point)

What these are

Winter Weather
Snow, sleet or freezing rain below warning levels that still caused disruption, damage or casualties.

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

The same day elsewhere

More

Every storm in Wisconsin in 2009Every state in 2009This day in weather historyWarnings in Wisconsin, January 2009

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 2026-10-01. Each event’s entry at NCEI: 152167, 152168, 152169, 152170, 152171, 152172, 152173, 152174.