Wisconsin, 2024

Hail and Damaging Winds in Wisconsin, September 21, 2024

September 21, 2024 · NWS ARX · 10 events in 5 counties and zones

Throughout much of the day on September 21st, an outflow boundary moved from north to south through the region. As this occurred, storms developed along this boundary and produced large hail and wind damage from the late morning until the evening hours.

Where it happened

Every event with a place to put it. 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
$338,000
Crop damage
$109,000
Events
10

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 ARX wrote it up.

Throughout much of the day on September 21st, an outflow boundary moved from north to south through the region. As this occurred, storms developed along this boundary and produced large hail and wind damage from the late morning until the evening hours.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS La Crosse, WI wrote its last area forecast discussion before the first event at Sep 21, 5:28 AM CST, 6 hours 9 minutes earlier.

Area forecast discussion, Sep 21, 5:28 AM CST, 6 hours 9 minutes before
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Hazardous weather outlook, Sep 21, 3:48 AM CST, 7 hours 49 minutes before
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In the hours before

Special weather statement, Sep 21, 10:15 AM CST, 1 hour 22 minutes before
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Local storm report, Sep 21, 10:42 AM CST, 55 minutes before
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Local storm report, Sep 21, 10:44 AM CST, 53 minutes before
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Special weather statement, Sep 21, 10:55 AM CST, 42 minutes before
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Local storm report, Sep 21, 11:05 AM CST, 32 minutes before
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Special weather statement, Sep 21, 11:05 AM CST, 32 minutes before
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The radar

The La Crosse radar (KARX), 37 km away, was scanning. The volume nearest the first event began at 17:34 UTC.

Open the radar archive at this moment

Event by event

8 hail, 2 thunderstorm wind. Local standard time, as filed.

Hail, Monroe

When
September 21, 11:37 AM CST
Where
Monroe County, 1.7 mi NW of Four Corners
Measured
1 in hail
Reported by
Public
Coordinates
44.100, -90.940

The public reported quarter sized hail via social media 2 miles northwest of Four Corners.

Hail, Trempealeau

When
September 21, 11:40 AM CST
Where
Trempealeau County, 4.52 mi E of Butman Corners
Measured
1.25 in hail
Reported by
Public
Coordinates
44.090, -91.190

The public reported half dollar sized hail 5 miles east of Butman Corners.

Hail, Vernon

When
September 21, 12:51 PM CST
Where
Vernon County, Dilly
Measured
1 in hail
Reported by
Emergency Manager
Coordinates
43.650, -90.430

Emergency management reported quarter sized hail 5 miles west of Hillsboro.

Hail, La Crosse

When
September 21, 3:15 PM CST
Where
La Crosse County, 0.5 mi W of Holmen
Measured
2 in hail
Property damage
$254,000
Crop damage
$26,000
Reported by
Public
Coordinates
43.970, -91.260

The public reported two inch diameter hail near Holmen.

Hail, Vernon

When
September 21, 3:56 PM CST
Where
Vernon County, 1.38 mi S of Victory
Measured
1 in hail
Reported by
Public
Coordinates
43.460, -91.220

The public reported quarter sized hail via mPING.

Thunderstorm Wind, Vernon

When
September 21, 3:59 PM CST
Where
Vernon County, De Soto
Measured
60 kt (69 mph) estimated gust
Property damage
$15,000
Reported by
Public
Coordinates
43.420, -91.200

The public reported a power pole snapped at a community ball park in De Soto.

Hail, Crawford

When
September 21, 4:00 PM CST
Where
Crawford County, De Soto
Measured
1 in hail
Reported by
Trained Spotter
Coordinates
43.420, -91.200

A trained spotter reported dime to quarter sized hail in De Soto.

Hail, Crawford

When
September 21, 4:04 PM CST
Where
Crawford County, 0.85 mi SE of De Soto
Measured
1.75 in hail
Property damage
$12,000
Crop damage
$42,000
Reported by
COOP Observer
Coordinates
43.410, -91.190

A CO-OP observer reported golf ball sized hail 1 mile southeast of De Soto.

Hail, Crawford

When
September 21, 4:14 PM CST
Where
Crawford County, 3.45 mi N of Ferryville
Measured
1.75 in hail
Property damage
$12,000
Crop damage
$26,000
Reported by
Law Enforcement
Coordinates
43.400, -91.100

Law enforcement reported golf ball sized hail 3 miles north of Ferryville.

Thunderstorm Wind, Crawford

When
September 21, 4:19 PM CST
Where
Crawford County, 3.59 mi W of Mt Sterling
Measured
55 kt (63 mph) estimated gust
Property damage
$45,000
Crop damage
$15,000
Reported by
Law Enforcement
Coordinates
43.330, -91.000

Law enforcement reported trees and power lines down between Ferryville and Mount Sterling.

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.

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

The same day elsewhere

More

Every storm in Wisconsin in 2024Every state in 2024This day in weather historyWarnings in Wisconsin, September 2024

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: 1213464, 1213465, 1213466, 1213467, 1213471, 1213476, 1213472, 1213473, 1213474, 1213475.