Wisconsin, 2000

Hail and Damaging Winds in Wisconsin, May 8, 2000

May 8, 2000 · NWS MKX · 9 events in 7 counties and zones

Scattered severe thunderstorms with large hail and damaging straight-line winds exploded across south-central and southeast Wisconsin after sunrise. ).

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

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The toll

Deaths
0
Injuries
0
Property damage
$99,000
Crop damage
None recorded
Events
9

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.

Scattered severe thunderstorms with large hail and damaging straight-line winds exploded across south-central and southeast Wisconsin after sunrise. The powerful winds leveled trees and power lines just west of Cobb (Iowa Co.), around Black Earth ( Dane Co.), from Fulton to Edgerton (Rock Co.), and from around Monroe east to Albany (Green Co.). In addition, east of Monroe(Green Co.) a pole shed was pushed over, a barn's roof was peeled off, and two swing sets were damaged by the winds. A semi tractor-trailer was blown over east of Dayton ( Green Co.). The severe weather was the result of several days of above normal daytime temperatures in the 80s and dewpoints rising into the 60s resulting in an unstable airmass. A cold front dropping southeast across southern Wisconsin with jet stream support aloft combined to focus the storms.

The radar

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

Open the radar archive at this moment

Event by event

6 thunderstorm wind, 3 hail. Local standard time, as filed.

Thunderstorm Wind, Iowa

When
May 8, 6:55 AM CST
Where
Iowa County, 1 mi W of Cobb
Measured
52 kt (60 mph)
Property damage
$10,000
Reported by
LAW ENFORCEMENT
Coordinates
42.967, -90.350

Hail, Lafayette

When
May 8, 6:55 AM CST
Where
Lafayette County, Shullsburg
Measured
1 in hail
Reported by
LAW ENFORCEMENT
Coordinates
42.567, -90.233

Thunderstorm Wind, Green

When
May 8, 7:13 AM CST to 7:25 AM CST
Where
Green County, 2 mi W of Monroe
Measured
70 kt (81 mph)
Property damage
$75,000
Reported by
LAW ENFORCEMENT
Coordinates
42.600, -89.667

Thunderstorm Wind, Green

When
May 8, 7:28 AM CST
Where
Green County, 4 mi E of Dayton
Measured
70 kt (81 mph)
Property damage
$10,000
Reported by
LAW ENFORCEMENT
Coordinates
42.817, -89.417

Thunderstorm Wind, Rock

When
May 8, 7:30 AM CST to 7:35 AM CST
Where
Rock County, 2 mi NW of Fulton
Property damage
$2,000
Reported by
EMERGENCY MANAGER
Coordinates
42.817, -89.150

Thunderstorm Wind, Dane

When
May 8, 7:45 AM CST
Where
Dane County, Black Earth
Property damage
$1,000
Reported by
EMERGENCY MANAGER
Coordinates
43.133, -89.750

Hail, Rock

When
May 8, 7:50 AM CST
Where
Rock County, 5 mi NE of Milton
Measured
1 in hail
Reported by
TRAINED SPOTTER
Coordinates
42.817, -88.883

Hail, Jefferson

When
May 8, 8:00 AM CST
Where
Jefferson County, Hebron
Measured
0.75 in hail
Reported by
NEWSPAPER
Coordinates
42.933, -88.700

Thunderstorm Wind, Waukesha

When
May 8, 8:25 AM CST
Where
Waukesha County, Delafield
Property damage
$1,000
Reported by
TRAINED SPOTTER
Coordinates
43.067, -88.400

What these are

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.
Hail
Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.

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, May 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: 5145228, 5145229, 5145230, 5145162, 5145231, 5145232, 5145233, 5145234, 5145235.