Wisconsin, 1998

Tornadoes and Hail in Wisconsin, May 30 to 31, 1998

May 30 to 31, 1998 · NWS GRB · 42 events in 15 counties and zones

8 million dollars in damage and injuring two people. ).

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
2
Property damage
$1.8 million
Crop damage
$20,000
Events
42

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.

A series of thunderstorms roared across the area late on May 30 and early on the 31st, causing about $1.8 million dollars in damage and injuring two people. Two tornadoes were also reported.One of the hardest hit areas was in Big Eau Pleine Park, about 8 miles west-southwest of Mosinee (Marathon co.). Thunderstorm winds from a downburst gusted to as high as 85 mph, flattening or damaging trees in a 200 yard wide and 1/2 mile long swath. One person was injured, suffering a broken leg. Several campers and vehicles were also damaged or destroyed. The same thunderstorm produced a brief tornado 4 miles west of Mosinee.In Winnebago county, high winds over 80 mph damaged 25 mobile homes around Menasha, overturning one of them. One of the occupants was slightly injured. Trees fell on several homes as well. In Pickett, winds of 70 mph were accompanied by 1 inch diameter hail.Calumet county was particularly hard hit, as well. Winds over 85 mph hit near Sherwood, where two barns were destroyed and two houses sustained damage. A garage at one of the residences was completely removed from its foundation and tipped on its side. A few minutes earlier from a different thunderstorm, a tornado touched down near Stockbridge, destroying a garage and silo, damaging two barns and overturning farm vehicles. A 2-by-4 was driven through the exterior wall of a house, narrowly missing one of the sleeping children. Damage in Calumet county alone topped $800,000.

The radar

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

Open the radar archive at this moment

Event by event

24 thunderstorm wind, 15 hail, 2 tornado, 1 lightning. Local standard time, as filed.

Hail, Wood

When
May 30, 9:28 PM CST
Where
Wood County, Marshfield
Measured
1 in hail
Coordinates
44.670, -90.170

Hail, Marathon

When
May 30, 9:30 PM CST
Where
Marathon County, 1 mi S of Spencer
Measured
1.75 in hail
Coordinates
44.750, -90.280

Hail, Marathon

When
May 30, 9:42 PM CST
Where
Marathon County, Rozellville
Measured
0.75 in hail
Coordinates
44.750, -90.020

Hail, Portage

When
May 30, 10:30 PM CST
Where
Portage County, 2 mi E of Rosholt
Measured
1.75 in hail
Coordinates
44.630, -89.270

Hail, Shawano

When
May 30, 10:50 PM CST
Where
Shawano County, Split Rock
Measured
1 in hail
Coordinates
44.700, -89.020

Hail, Waupaca

When
May 30, 11:00 PM CST
Where
Waupaca County, Marion
Measured
0.75 in hail
Coordinates
44.670, -88.880

Hail, Shawano

When
May 30, 11:17 PM CST
Where
Shawano County, 5 mi W of Shawano
Measured
1.75 in hail
Coordinates
44.770, -88.700

Hail, Marathon

When
May 30, 11:25 PM CST
Where
Marathon County, Athens
Measured
1 in hail
Coordinates
45.030, -90.080

Hail, Shawano

When
May 30, 11:43 PM CST
Where
Shawano County, Advance
Measured
1 in hail
Coordinates
44.780, -88.330

Hail, Marathon

When
May 30, 11:48 PM CST
Where
Marathon County, Spencer
Measured
1 in hail
Coordinates
44.770, -90.280

Thunderstorm Wind, Wood

When
May 30, 11:59 PM CST
Where
Wood County, Marshfield Muni Arpt
Measured
56 kt (64 mph)
Coordinates
44.630, -90.180

Thunderstorm Wind, Oconto

When
May 31, 12:00 AM CST
Where
Oconto County, Oconto Falls
Measured
50 kt (58 mph)
Coordinates
44.880, -88.300

Hail, Marathon

When
May 31, 12:02 AM CST
Where
Marathon County, Wausau
Measured
0.88 in hail
Coordinates
44.970, -89.630

Hail, Marathon

When
May 31, 12:05 AM CST
Where
Marathon County, Stratford
Measured
1 in hail
Coordinates
44.970, -90.070

Hail, Oconto

When
May 31, 12:07 AM CST
Where
Oconto County, Oconto
Measured
0.88 in hail
Coordinates
44.880, -87.880

Thunderstorm Wind, Marinette

When
May 31, 12:10 AM CST
Where
Marinette County, 1 mi E of Marinette
Measured
52 kt (60 mph)
Coordinates
45.100, -87.600

Hail, Menominee (C)

When
May 31, 12:13 AM CST
Where
Menominee (C) County, 5 mi NW of Keshena
Measured
0.75 in hail
Coordinates
44.930, -88.700

Thunderstorm Wind, Marathon

When
May 31, 12:15 AM CST
Where
Marathon County, 8 mi WSW of Mosinee
Measured
74 kt (85 mph)
Injuries
1 direct, 0 indirect
Property damage
$350,000
Coordinates
44.730, -89.850

Tornado, Marathon

When
May 31, 12:20 AM CST to 12:21 AM CST
Where
Marathon County, Mosinee to 4 mi WSW of Mosinee
Rating
F0
Path length
0.2 mi
Path width
50 yd
Property damage
$15,000
Coordinates
44.770, -89.780

Thunderstorm Wind, Wood

When
May 31, 12:20 AM CST
Where
Wood County, Nekoosa
Property damage
$5,000
Coordinates
44.320, -89.900

Lightning, Oconto

When
May 31, 12:23 AM CST
Where
Oconto County, 3 mi N of Oconto
Property damage
$1,000
Coordinates
44.999, -88.221 (the zone’s center; the record gives no point)

Thunderstorm Wind, Wood

When
May 31, 12:25 AM CST
Where
Wood County, Blenker
Property damage
$5,000
Coordinates
44.620, -89.920

Thunderstorm Wind, Wood

When
May 31, 12:25 AM CST
Where
Wood County, Milladore
Property damage
$5,000
Coordinates
44.600, -89.850

Thunderstorm Wind, Portage

When
May 31, 12:30 AM CST
Where
Portage County, Bancroft
Measured
50 kt (58 mph)
Coordinates
44.320, -89.520

Thunderstorm Wind, Waushara

When
May 31, 12:35 AM CST
Where
Waushara County, 1 mi NW of Coloma
Measured
55 kt (63 mph)
Coordinates
44.050, -89.530

Thunderstorm Wind, Waushara

When
May 31, 12:40 AM CST
Where
Waushara County, Hancock
Measured
50 kt (58 mph)
Coordinates
44.130, -89.520

Hail, Brown

When
May 31, 12:52 AM CST
Where
Brown County, 1 mi SW of Wrightstown
Measured
0.88 in hail
Coordinates
44.320, -88.180

Thunderstorm Wind, Waushara

When
May 31, 12:55 AM CST
Where
Waushara County, Mt Morris
Measured
55 kt (63 mph)
Coordinates
44.120, -89.200

Thunderstorm Wind, Winnebago

When
May 31, 1:08 AM CST
Where
Winnebago County, 2 mi W of Menasha
Measured
75 kt (86 mph)
Injuries
1 direct, 0 indirect
Property damage
$300,000
Coordinates
44.200, -88.480

Thunderstorm Wind, Oconto

When
May 31, 1:11 AM CST
Where
Oconto County, Abrams
Measured
52 kt (60 mph)
Coordinates
44.780, -88.070

Thunderstorm Wind, Winnebago

When
May 31, 1:11 AM CST
Where
Winnebago County, Pickett
Measured
61 kt (70 mph)
Coordinates
43.920, -88.730

Thunderstorm Wind, Outagamie

When
May 31, 1:13 AM CST
Where
Outagamie County, 4 mi W of Appleton
Measured
55 kt (63 mph)
Property damage
$4,000
Coordinates
44.270, -88.480

Thunderstorm Wind, Outagamie

When
May 31, 1:18 AM CST
Where
Outagamie County, Kaukauna
Measured
50 kt (58 mph)
Coordinates
44.270, -88.270

Tornado, Calumet

When
May 31, 1:20 AM CST to 1:24 AM CST
Where
Calumet County, Stockbridge to 1 mi NE of Stockbridge
Rating
F1
Path length
1.4 mi
Path width
75 yd
Property damage
$300,000
Coordinates
44.070, -88.300

Thunderstorm Wind, Outagamie

When
May 31, 1:20 AM CST
Where
Outagamie County, Darboy
Measured
50 kt (58 mph)
Coordinates
44.230, -88.380

Thunderstorm Wind, Calumet

When
May 31, 1:25 AM CST
Where
Calumet County, 1 mi NE of Sherwood
Measured
75 kt (86 mph)
Property damage
$500,000
Crop damage
$20,000
Coordinates
44.200, -88.250

Thunderstorm Wind, Calumet

When
May 31, 1:30 AM CST
Where
Calumet County, 2 mi N of Chilton
Measured
60 kt (69 mph)
Property damage
$5,000
Coordinates
44.070, -88.170

Thunderstorm Wind, Kewaunee

When
May 31, 1:30 AM CST
Where
Kewaunee County, Stangelville
Measured
50 kt (58 mph)
Coordinates
44.400, -87.680

Thunderstorm Wind, Manitowoc

When
May 31, 1:35 AM CST
Where
Manitowoc County, Rockville
Measured
60 kt (69 mph)
Property damage
$10,000
Coordinates
43.920, -88.000

Thunderstorm Wind, Calumet

When
May 31, 1:40 AM CST
Where
Calumet County, 3 mi SE of New Holstein
Measured
55 kt (63 mph)
Property damage
$10,000
Coordinates
43.920, -88.030

Thunderstorm Wind, Manitowoc

When
May 31, 1:43 AM CST
Where
Manitowoc County, 1 mi NE of Whitelaw
Measured
60 kt (69 mph)
Property damage
$150,000
Coordinates
44.170, -87.800

Thunderstorm Wind, Manitowoc

When
May 31, 1:55 AM CST to 2:00 AM CST
Where
Manitowoc County, Manitowoc to 3 mi NW of Manitowoc
Measured
60 kt (69 mph)
Property damage
$150,000
Coordinates
44.120, -87.720

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.
Tornado
A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.
Lightning
A lightning strike that killed, injured or caused damage.

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

The same day elsewhere

More

Every storm in Wisconsin in 1998Every state in 1998This day in weather historyThe tornado archive for Wisconsin, 1998Warnings in Wisconsin, May 1998

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: 5641176, 5641177, 5641178, 5641179, 5641180, 5641181, 5641182, 5641183, 5641186, 5641184, 5641187, 5641291, 5641185, 5641192, 5641188, 5641189, 5641195, 5641193, 5641194, 5641196, 5641292, 5641197, 5641198, 5641199, 5641190, 5641191, 5641200, 5641293, 5641280, 5641279, 5641281, 5641282, 5641283, 5641201, 5641284, 5641278, 5641285, 5641287, 5641289, 5641286, and more.