Wisconsin, 1999

Hail and Damaging Wind in Wisconsin, September 19, 1999

September 19, 1999 · NWS GRB · 3 events in 3 counties and zones

Isolated severe thunderstorms developed in advance of a cold front that moved through northeast Wisconsin during the late afternoon and early evening hours. The crew of a ship off the Door county shoreline spotted several waterspouts at one time.

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

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
3

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.

Isolated severe thunderstorms developed in advance of a cold front that moved through northeast Wisconsin during the late afternoon and early evening hours. Thunderstorms downed several trees in Manawa (Waupaca county) and large hail damaged vehicles in Whitelaw (Manitowoc county).The crew of a ship off the Door county shoreline spotted several waterspouts at one time.

The radar

The Green Bay radar (KGRB), 64 km away, was scanning. The volume nearest the first event began at 19:22 UTC.

Open the radar archive at this moment

Event by event

1 thunderstorm wind, 1 hail, 1 waterspout. Local standard time, as filed.

Thunderstorm Wind, Waupaca

When
September 19, 1:25 PM CST
Where
Waupaca County, Manawa
Measured
50 kt (58 mph)
Reported by
LAW ENFORCEMENT
Coordinates
44.470, -88.920

Hail, Manitowoc

When
September 19, 3:45 PM CST
Where
Manitowoc County, Whitelaw
Measured
1 in hail
Reported by
BROADCAST MEDIA
Coordinates
44.150, -87.820

Waterspout, Door

When
September 19, 4:46 PM CST to 5:10 PM CST
Where
Door County, 8 mi SE of Sturgeon Bay
Reported by
OTHER FEDERAL AGENCY
Coordinates
44.838, -87.358 (the zone’s center; the record gives no point)

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.
Waterspout
A tornado over water. One that moves ashore is filed as a tornado from the coastline on.

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

The same day elsewhere

More

Every storm in Wisconsin in 1999Every state in 1999This day in weather historyWarnings in Wisconsin, September 1999

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: 5716749, 5716750, 5716751.