Flood and Hail in Wisconsin, September 10 to 11, 2000

Name: Flood and Hail in Wisconsin, September 10 to 11, 2000
Start: 2000-09-10T22:14
End: 2000-09-11T00:40
Location: Wisconsin

September 10 to 11, 2000 · NWS GRB · 5 events in 4 counties and zones

Elevated thunderstorms developed across north central Wisconsin near a stalled front. These storms produced hail, damaging winds and heavy rains as they moved through north central Wisconsin.

Where it happened

Every event with a place to put it; 1 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

Open the live radar over this ground

The toll

Deaths: 0
Injuries: 0
Property damage: None recorded
Crop damage: None recorded
Events: 5

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 GRB wrote it up.

Elevated thunderstorms developed across north central Wisconsin near a stalled front. These storms produced hail, damaging winds and heavy rains as they moved through north central Wisconsin. A building was reportedly blown down by high winds around Hamburg (Marathon co.). Heavy rains from the storms produced street flooding in Niagara (Marinette co.).

The radar

The Marquette radar (KMQT), 190 km away, was scanning. The volume nearest the first event began at 04:12 UTC.

Open the radar archive at this moment

Event by event

3 thunderstorm wind, 1 hail, 1 flood. Local standard time, as filed.

Hail, Vilas

When: September 10, 10:14 PM CST
Where: Vilas County, Lac du Flambeau
Measured: 1 in hail
Reported by: LAW ENFORCEMENT
Coordinates: 45.967, -89.883

Thunderstorm Wind, Marathon

When: September 10, 11:19 PM CST
Where: Marathon County, 10 mi NE of Athens
Measured: 60 kt (69 mph)
Reported by: LAW ENFORCEMENT
Coordinates: 45.133, -89.933

Thunderstorm Wind, Marathon

When: September 10, 11:40 PM CST
Where: Marathon County, 10 mi NNW of Wausau
Measured: 60 kt (69 mph)
Reported by: GENERAL PUBLIC
Coordinates: 45.100, -89.717

Thunderstorm Wind, Lincoln

When: September 10, 11:44 PM CST
Where: Lincoln County, Harrison
Measured: 55 kt (63 mph)
Reported by: LAW ENFORCEMENT
Coordinates: 45.483, -89.500

Flood, Marinette

When: September 11, 12:25 AM CST to 12:40 AM CST
Where: Marinette County, Niagara
Reported by: LAW ENFORCEMENT
Coordinates: 45.351, -88.002 (the zone’s center; the record gives no point)

What these are

Hail: Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
Thunderstorm Wind: Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
Flood: Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.

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

The same day elsewhere

Every storm in Wisconsin in 2000 Every state in 2000 This day in weather history Warnings in Wisconsin, September 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: 5174687, 5174690, 5174688, 5174689, 5174691.