States › Iowa › 1990

Iowa, 1990

The year's recorded storm events, federal disaster declarations and flood insurance claims.

336events recorded340 in 1989

0deaths recorded22 injuries

$135Mproperty damage (estimates)

2disaster declarations874 NFIP claims, $8.4M paid

NCEI notes that Storm Data is compiled from a variety of sources including the National Weather Service, other federal, state and local agencies, the media and the public; that property and crop damage figures are estimates; and that some events are recorded by NWS forecast zone rather than by county. FEMA notes that NFIP claim records are redacted and aggregated to protect the privacy of policyholders.

Events by hazard

Wind189

Tornado80

Hail67

Includes events recorded by forecast zone. The state's yearly total for 1990 was 336 against 340 in 1989.

Counties with the most recorded events

County	Events in 1990
Pottawattamie County	10
Clinton County	8
Harrison County	8
Woodbury County	8
Dallas County	7
Hamilton County	7
O'Brien County	7
Polk County	7
Sioux County	7
Story County	7
Clay County	6
Crawford County	6
Hardin County	6
Henry County	6
Pocahontas County	6
Scott County	6
Winnebago County	6
Wright County	6
Bremer County	5
Chickasaw County	5
Delaware County	5
Floyd County	5
Grundy County	5
Lee County	5
Mahaska County	5

Notable events

Date	County	Event type	Magnitude	Property damage	Deaths	Injuries
13 Mar 1990	Polk	Tornado	F2	$2,500,000	—	15
16 Jun 1990	Dallas	Thunderstorm Wind	58 mph	—	—	3
13 Mar 1990	Linn	Tornado	F4	$25,000,000	—	—
13 Mar 1990	Jones	Tornado	F4	$25,000,000	—	—
13 Mar 1990	Delaware	Tornado	F4	$25,000,000	—	—
13 Mar 1990	Dubuque	Tornado	F4	$25,000,000	—	—
13 Mar 1990	Story	Tornado	F3	$250,000	—	1
23 Aug 1990	Harrison	Thunderstorm Wind	58 mph	—	—	1
16 Jun 1990	Woodbury	Thunderstorm Wind	58 mph	—	—	1
16 Jun 1990	Henry	Thunderstorm Wind	58 mph	—	—	1
13 Mar 1990	Jones	Tornado	F1	$2,500,000	—	—
13 Mar 1990	Boone	Tornado	F2	$2,500,000	—	—
13 Mar 1990	Hamilton	Tornado	F2	$2,500,000	—	—
13 Mar 1990	Story	Tornado	F2	$2,500,000	—	—
18 Aug 1990	Dickinson	Tornado	F2	$2,500,000	—	—
28 Jun 1990	Grundy	Tornado	F1	$2,500,000	—	—
19 Jun 1990	Pocahontas	Tornado	F2	$2,500,000	—	—
19 Jun 1990	Calhoun	Tornado	F2	$2,500,000	—	—
28 Jun 1990	Franklin	Tornado	F3	$2,500,000	—	—
28 Jun 1990	Hardin	Tornado	F3	$2,500,000	—	—
13 Mar 1990	Scott	Tornado	F3	$250,000	—	—
13 Mar 1990	Scott	Tornado	F1	$250,000	—	—
13 Mar 1990	Clinton	Tornado	F1	$250,000	—	—
13 Mar 1990	Pottawattamie	Tornado	F1	$250,000	—	—
23 Apr 1990	Hancock	Tornado	F1	$250,000	—	—
19 May 1990	Black Hawk	Tornado	F1	$250,000	—	—
13 Mar 1990	Boone	Tornado	F1	$250,000	—	—
12 Jun 1990	Cass	Tornado	F1	$250,000	—	—
12 Jun 1990	Fayette	Tornado	F1	$250,000	—	—
12 Jun 1990	Winneshiek	Tornado	F1	$250,000	—	—
16 Jun 1990	Floyd	Tornado	F1	$250,000	—	—
19 Jun 1990	Sioux	Tornado	F0	$250,000	—	—
16 Jun 1990	Wapello	Tornado	F0	$250,000	—	—
13 Jun 1990	Clayton	Tornado	F2	$250,000	—	—
13 Jun 1990	Fremont	Tornado	F2	$250,000	—	—
16 Jun 1990	Buena Vista	Tornado	F1	$250,000	—	—
2 Jun 1990	Delaware	Tornado	F2	$250,000	—	—
19 Aug 1990	Scott	Tornado	F1	$250,000	—	—
2 Jun 1990	Buchanan	Tornado	F2	$250,000	—	—
19 Jun 1990	Hamilton	Tornado	F1	$250,000	—	—

Up to 40 events with deaths, injuries, damage of $50,000 or more, or a tornado rating, ranked by deaths, injuries and damage.

Federal disaster declarations in 1990

Declared	Number	Type	Incident	Title	Counties
6 Sep 1990	DR-879	Major disaster	Flood	Severe Storms & Flooding	17
26 May 1990	DR-868	Major disaster	Flood	Severe Storms & Flooding	39

Flood insurance claims with a 1990 date of loss

874 NFIP claims, 666 of them paid, for $8,375,249.

Sources: NOAA NCEI Storm Events through 30 Jun 2026; OpenFEMA DisasterDeclarationsSummaries v2 (29 Sep 2026); OpenFEMA NfipClaims v3 (8 Sep 2026). Built 30 Sep 2026.