Iowa, 1998

Tornadoes and Hail in Iowa, June 18, 1998

June 18, 1998 · NWS DVN · 34 events in 18 counties and zones

17 hail, 15 thunderstorm wind, 2 tornado, as filed by the National Weather Service.

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
2
Property damage
$488,000
Crop damage
None recorded
Events
34

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.

The radar

The Quad Cities radar (KDVN), 147 km away, was scanning. The volume nearest the first event began at 21:09 UTC.

Open the radar archive at this moment

Event by event

17 hail, 15 thunderstorm wind, 2 tornado. Local standard time, as filed.

Thunderstorm Wind, Van Buren

When
June 18, 3:10 PM CST to 4:00 PM CST
Where
Van Buren County, Countywide
Property damage
$15,000
Reported by
NEWSPAPER
Coordinates
40.750, -91.920

Thunderstorms roared through Van Buren County leaving a trail of destruction. Numerous trees were downed across the county including 20 trees, valued at $4000, at Harmony Middle School in Farmington. Also in Farmington, the roof at Harmony High School was damaged, a light fixture at the front of the building was broken, and high winds blew down the outfield fence of the baseball field. A large maple tree, uprooted by the winds, fell against the corner of a home in Farmington causing major damage to the roof and eaves. A bar and an adjacent building were closed due to possible structural damage after windows were blown out of the buildings At least 14 power lines were downed across the Farmington area, and a large machine shed was destroyed by the thunderstorms. In Mt. Sterling an aluminum building blown onto a road knocked down a power line. A funnel cloud was reported near Douds along with damages reports of downed trees or power lines in Douds, Bonaparte, Cantril, Milton, Stockport and Mt Sterling.

Thunderstorm Wind, Delaware

When
June 18, 3:15 PM CST to 3:30 PM CST
Where
Delaware County, Manchester
Property damage
$2,000
Reported by
EMERGENCY MANAGER
Coordinates
42.480, -91.450

Buildings were damaged by strong thunderstorm winds.

Thunderstorm Wind, Delaware

When
June 18, 3:15 PM CST to 3:45 PM CST
Where
Delaware County, Countywide
Measured
52 kt (60 mph)
Reported by
LAW ENFORCEMENT
Coordinates
42.470, -91.380

Strong thunderstorm winds with gusts up to 60 mph downed trees and power lines across the county.

Thunderstorm Wind, Delaware

When
June 18, 3:15 PM CST
Where
Delaware County, 2 mi N of Dundee
Property damage
$3,000
Reported by
NEWSPAPER
Coordinates
42.620, -91.550

Strong thunderstorm winds uprooted, shattered and splintered nearly two acres of trees at Backbone State Park. Between 50 and 100 oaks, maples, and basswood trees were destroyed. Campgrounds were also damaged by the high winds and one tent was flattened by a falling tree. No injuries were reported to the occupants of the tent. They sought shelter in a campground shower house before the tree fell.

Hail, Iowa

When
June 18, 3:20 PM CST
Where
Iowa County, West Amana
Measured
1 in hail
Reported by
LAW ENFORCEMENT
Coordinates
41.820, -91.970

Hail, Linn

When
June 18, 3:20 PM CST
Where
Linn County, Coggon
Measured
2 in hail
Property damage
$14,000
Reported by
LAW ENFORCEMENT
Coordinates
42.280, -91.530

There were numerous reports of damage caused by the hail.

Hail, Johnson

When
June 18, 3:20 PM CST
Where
Johnson County, Oxford
Measured
1.75 in hail
Property damage
$200
Reported by
LAW ENFORCEMENT
Coordinates
41.670, -91.830

Windshields were broken by golf ball size hail.

Thunderstorm Wind, Jefferson

When
June 18, 3:20 PM CST to 4:00 PM CST
Where
Jefferson County, Countywide
Property damage
$15,000
Reported by
NEWSPAPER
Coordinates
41.030, -91.930

High winds from strong thunderstorms buffeted Jefferson County, causing damage to Fairfield and surrounding areas. The wind measuring equipment at Fairfield Flying Service, and a large sign at Fesler Auto Mall were destroyed by thunderstorm winds. Northwestern and western parts of Fairfield suffered the substantial property damage. A roof was blown off the GTE warehouse and a section of roof was ripped off Winfrey Storage. Numerous trees were blown down. One maple fell on a vacant house and another fallen tree destroyed a gas meter, broke windows and damaged eaves on another home. Streets around the area were blocked until the gas leak was repaired. A motorist driving a pickup had a brush with death when a large ash tree fell and part of the tree hit the truck's bed and dented the sidewalls. Another tree dropped on a four wheel drive Scout and boat. South of Fairfield a horse barn on Middle Glasgow Road was destroyed and a double car garage on Glasgow Road was blown down. High winds also flattened a grain storage bin near Libertyville.

Hail, Delaware

When
June 18, 3:30 PM CST
Where
Delaware County, Hopkinton
Measured
4.5 in hail
Property damage
$8,000
Reported by
LAW ENFORCEMENT
Coordinates
42.350, -91.250

Large hail fell through the roof of a home causing extensive damage.

Hail, Johnson

When
June 18, 3:30 PM CST
Where
Johnson County, Coralville
Measured
1.75 in hail
Reported by
AMATEUR RADIO
Coordinates
41.680, -91.580

Hail, Johnson

When
June 18, 3:30 PM CST to 3:47 PM CST
Where
Johnson County, Iowa City
Measured
2.75 in hail
Reported by
LAW ENFORCEMENT
Coordinates
41.670, -91.550

Baseball size hail falling for more than 15 minutes caused widespread damage to homes and vehicles across the Iowa City area. Numerous windshields were broken and vehicles dented. Several reports of hail breaking through fiberglass awnings and lightweight shelters were also received.

Thunderstorm Wind, Linn

When
June 18, 3:30 PM CST
Where
Linn County, Cedar Rapids
Measured
56 kt (64 mph)
Injuries
1 direct, 0 indirect
Reported by
NEWSPAPER
Coordinates
42.000, -91.650

A line of fast moving thunderstorms downed numerous tree limbs and power lines across Cedar Rapids leaving 12,000 customers of Alliant-IES Utilities without power. Wind peeled the outer membrane from a roof of a business allowing water to soak the suspended-ceiling tiles. The waterlogged tiles then gave way damaging portions of the carpet, but missing showcases and merchandise. One man was injured when strong winds lifted then flattened the large beer tent he was in at Hiawatha's Hog Wild Days.

Thunderstorm Wind, Dubuque

When
June 18, 3:33 PM CST to 4:15 PM CST
Where
Dubuque County, Countywide
Property damage
$100,000
Reported by
NEWSPAPER
Coordinates
42.530, -90.920

Strong thunderstorm winds downed trees and power lines across the tri-state area of Northeast Iowa, Northern Illinois, and Southwest Wisconsin. Approximately 2000 customers of Alliant Utilities lost power during the storm.In the city of Dubuque numerous trees blocked streets with one tree falling on a pickup truck. At Sacred Heart Church the wind broke the face of the steeple clock, and at Loras College damage was sustained when lightning struck the boiler smokestack in the maintenance building. There was some basement flooding in the Loras College fieldhouse. Also in Dubuque, the roof was ripped off the Harbor Place Mall leaving 2 to 3 inches of standing water in the building, and another $5000 worth of damage was reported at the airport when strong gusts peeled panels off a hanger roof. Near Worthington a roof was blown off a large barn and seven other farm buildings were damaged by strong winds. Northeast of Luxemburg a farm received substantial damage when thunderstorm winds damaged a hog building, cattle shed, and several other farmsheds. One shed, used for storing vehicles and farm equipment, was ripped apart resulting in major damage to the vehicles inside the shed. The family home also sustained minor damage.

Thunderstorm Wind, Jones

When
June 18, 3:40 PM CST to 3:45 PM CST
Where
Jones County, Anamosa
Property damage
$16,000
Reported by
NEWSPAPER
Coordinates
42.120, -91.280

Thunderstorm Wind, Henry

When
June 18, 3:40 PM CST to 4:00 PM CST
Where
Henry County, Countywide
Measured
52 kt (60 mph)
Reported by
NEWSPAPER
Coordinates
40.970, -91.530

A storm system blasting across Southeast Iowa produced 60 mph thunderstorm winds and dumped 1 to 2 inches of heavy rain across central Henry County. Damage caused by falling trees and lightning resulted in power outages across 10 counties served by Southeast Iowa Rural Electric Cooperative. On U.S. highway 218 near Salem a semi was blown over by the high winds and in Geode State Park a camper trailer was blown over.

Hail, Dubuque

When
June 18, 3:50 PM CST
Where
Dubuque County, Farley
Measured
0.75 in hail
Reported by
TRAINED SPOTTER
Coordinates
42.450, -91.000

Hail, Dubuque

When
June 18, 3:50 PM CST to 4:00 PM CST
Where
Dubuque County, Worthington
Measured
0.75 in hail
Reported by
TRAINED SPOTTER
Coordinates
42.400, -91.120

Thunderstorm Wind, Lee

When
June 18, 3:50 PM CST to 4:20 PM CST
Where
Lee County, Ft Madison
Property damage
$20,000
Reported by
NEWSPAPER
Coordinates
40.630, -91.320

City residents and businesses were left without electricity after strong thunderstorms raced across Lee county. Numerous trees and power lines downed by the storm blocked streets and caused damage in Fort Madison. Several vehicles were smashed by fallen trees and branches, and 911 dispatchers had difficulty routing calls due to power problems. Heavy rains associated with the thunderstorms also resulted in minor street flooding between 21st Street and 26th Street in Fort Madison. A major historical landmark was destroyed when winds blew off the roof then caused walls to collapse at the old Fort Madison depot. This building had been recognized as the oldest surviving railway station in the State of Iowa. High winds toppled two fifteen foot steeples at the historic St Mary's Church. Major damage was sustained to the copper roof and gutters, and water leaking through the damaged roof caused additional damage to restrooms inside the church.

Hail, Dubuque

When
June 18, 4:00 PM CST to 4:10 PM CST
Where
Dubuque County, Peosta
Measured
1 in hail
Reported by
TRAINED SPOTTER
Coordinates
42.450, -90.850

Hail, Cedar

When
June 18, 4:00 PM CST
Where
Cedar County, 1 mi S of Rochester
Measured
1 in hail
Reported by
AMATEUR RADIO
Coordinates
41.670, -91.170

Tornado, Louisa

When
June 18, 4:00 PM CST to 4:10 PM CST
Where
Louisa County, Oakville
Rating
F1
Path length
1 mi
Path width
100 yd
Injuries
1 direct, 0 indirect
Property damage
$180,000
Reported by
NEWSPAPER
Coordinates
41.100, -91.050

Two homes were destroyed and trees were uprooted when a tornado touched down near Oakville. One minor injury was reported when the tornado rolled and damaged a mobile home. Twelve other residences sustained $130,000 in damages. Besides the two homes which were destroyed, two others were moved off their foundations. Roofs were torn off, and four garages were demolished.

Hail, Jones

When
June 18, 4:05 PM CST
Where
Jones County, 3 mi N of Oxford Jct
Measured
1.75 in hail
Reported by
LAW ENFORCEMENT
Coordinates
42.030, -90.970

Tornado, Louisa

When
June 18, 4:10 PM CST
Where
Louisa County, 2 mi SE of Grandview
Rating
F0
Path length
0.1 mi
Path width
0.5 yd
Property damage
$2,000
Reported by
NWS STORM SURVEY
Coordinates
41.270, -91.170

A brief tornado touchdown resulted in tree and roof damage and a missing boat at a home near Grandview.

Hail, Clinton

When
June 18, 4:15 PM CST
Where
Clinton County, Clinton
Measured
0.75 in hail
Reported by
LAW ENFORCEMENT
Coordinates
41.830, -90.200

Thunderstorm Wind, Des Moines

When
June 18, 4:15 PM CST to 4:40 PM CST
Where
Des Moines County, Burlington
Measured
54 kt (62 mph)
Reported by
NEWSPAPER
Coordinates
40.820, -91.080

About 5000 utility customers were without power after thunderstorms roared across Des Moines County. Several parked cars were damaged after strong winds blew out windows of buildings in the 300 block of Valley Street. Across Burlington numerous reports of downed trees were received, and the main outdoor stage at the Burlington Steamboat Days was damaged after a large scaffolding fell on top of the sound mixer.

Hail, Benton

When
June 18, 4:20 PM CST
Where
Benton County, Van Horne
Measured
1.75 in hail
Reported by
LAW ENFORCEMENT
Coordinates
42.020, -92.080

Hail, Jackson

When
June 18, 4:30 PM CST
Where
Jackson County, 2 mi NW of Maquoketa
Measured
1 in hail
Reported by
LAW ENFORCEMENT
Coordinates
42.080, -90.720

Thunderstorm Wind, Linn

When
June 18, 4:30 PM CST
Where
Linn County, Mt Vernon
Property damage
$5,000
Reported by
LAW ENFORCEMENT
Coordinates
41.920, -91.420

A new grain bin and several older farm buildings were damaged by strong winds.

Hail, Muscatine

When
June 18, 4:30 PM CST
Where
Muscatine County, Muscatine
Measured
1.75 in hail
Reported by
TRAINED SPOTTER
Coordinates
41.420, -91.050

Thunderstorm Wind, Scott

When
June 18, 4:30 PM CST
Where
Scott County, 1 mi SW of Walcott
Property damage
$8,000
Reported by
NEWSPAPER
Coordinates
41.570, -90.800

Strong thunderstorm winds toppled trees in the Walcott area. One large maple tree smashed a corn crib full of soybeans. About 3,000 bushels of beans were spilled and a farm wagon on the lower level of the corn crib was crushed by the falling building.

Hail, Dubuque

When
June 18, 4:32 PM CST
Where
Dubuque County, Farley to Dyersville
Measured
1 in hail
Reported by
TRAINED SPOTTER
Coordinates
42.450, -91.000

Thunderstorm Wind, Jackson

When
June 18, 4:40 PM CST
Where
Jackson County, 2 mi N of La Motte
Property damage
$100,000
Reported by
NEWSPAPER
Coordinates
42.330, -90.620

Strong thunderstorm winds destroyed a dairy barn and ripped the roof off another barn in Northeastern Jackson county. One home was destroyed as strong winds drove barn beams through the walls, shattered glass and spread dirt and debris inside the home.

Hail, Dubuque

When
June 18, 4:55 PM CST to 5:00 PM CST
Where
Dubuque County, Graf to Dubuque
Measured
0.75 in hail
Reported by
TRAINED SPOTTER
Coordinates
42.500, -90.870

Thunderstorm Wind, Linn

When
June 18, 5:00 PM CST
Where
Linn County, Fairfax
Measured
65 kt (75 mph)
Reported by
TRAINED SPOTTER
Coordinates
41.920, -91.780

Widespread tree damage was reported due to strong thunderstorm winds.

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.
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.

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

The same day elsewhere

More

Every storm in Iowa in 1998Every state in 1998This day in weather historyThe tornado archive for Iowa, 1998Warnings in Iowa, June 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: 5666222, 5665977, 5665978, 5666159, 5666058, 5666059, 5666062, 5666161, 5666061, 5666063, 5666064, 5666221, 5666051, 5665975, 5666162, 5665979, 5665980, 5666223, 5665981, 5666065, 5666219, 5665976, 5666220, 5666052, 5666325, 5666053, 5666054, 5666055, 5666157, 5666158, 5666056, 5666160, 5666057, 5666060.