Heavy Snow, Clark
- When
- December 20, 7:00 AM CST to 11:00 PM CST
- Where
- Clark forecast zone
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 40.410, -91.738 (the zone’s center; the record gives no point)
Yet another Alberta Clipper storm chugged into the upper Midwest during the early morning hours of 12/20, this time tracking from the high Plains into Minnesota and Wisconsin. The system brought periods of heavy snow to the area.
Every event with a place to put it; 2 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
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.
The episode as NWS DVN wrote it up.
Yet another Alberta Clipper storm chugged into the upper Midwest during the early morning hours of 12/20, this time tracking from the high Plains into Minnesota and Wisconsin. The system brought periods of heavy snow to the area. The snow began in east central and northeast Iowa around sunrise, and then spread south and east through the morning hours. The heaviest amounts of 4 to 5 inches fell to the north, in parts of eastern Iowa and far northwest Illinois, with only 1 to 3 inch amounts in Clark and Scotland counties. The snow had tapered to flurries by midnight. As low pressure headed off to the northeast, a northwest wind picked up to 20 to 30 miles an hour during the overnight, and produced bitterly cold wind chills of 30 to 45 below zero, as actual temperatures dropped into the single digits. Blowing and drifting snow continued into the day on 12/21.
The national radar mosaic for the moment the first event began.
2 heavy snow. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Missouri in 2000Every state in 2000This day in weather historyWarnings in Missouri, December 2000
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: 5177323, 5177324.