Wisconsin, 1986
The year's recorded storm events, federal disaster declarations and flood insurance claims.
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
Includes events recorded by forecast zone. The state's yearly total for 1986 was 145 against 177 in 1985.
Counties with the most recorded events
Notable events
| Date | County | Event type | Magnitude | Property damage | Deaths | Injuries |
|---|---|---|---|---|---|---|
| 28 Sep 1986 | Jefferson | Tornado | F2 | $2,500,000 | — | 1 |
| 28 Sep 1986 | Jefferson | Thunderstorm Wind | 0 mph | — | — | 1 |
| 3 Sep 1986 | Barron | Tornado | F2 | $250,000 | — | — |
| 26 Sep 1986 | Clark | Tornado | F1 | $250,000 | — | — |
| 11 Jun 1986 | Fond du Lac | Tornado | F2 | $250,000 | — | — |
| 21 Jun 1986 | Sawyer | Tornado | F1 | $250,000 | — | — |
| 4 Jul 1986 | Oneida | Tornado | F2 | $250,000 | — | — |
| 24 Jul 1986 | Vilas | Tornado | F1 | $250,000 | — | — |
| 26 Jun 1986 | Monroe | Tornado | F2 | $250,000 | — | — |
| 4 Jul 1986 | Marinette | Tornado | F3 | $250,000 | — | — |
| 11 Jul 1986 | Dane | Tornado | F1 | $250,000 | — | — |
| 12 Jul 1986 | Dodge | Tornado | F0 | $2,500 | — | — |
| 12 Jul 1986 | Dodge | Tornado | F0 | $250 | — | — |
| 26 Sep 1986 | Sawyer | Tornado | F0 | — | — | — |
| 12 Jul 1986 | Jefferson | Tornado | F0 | — | — | — |
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 1986
| Declared | Number | Type | Incident | Title | Counties |
|---|---|---|---|---|---|
| 7 Oct 1986 | DR-775 | Major disaster | Flood | Severe Storms & Flooding | 8 |
| 14 Aug 1986 | DR-770 | Major disaster | Flood | Severe Storms | 2 |
Flood insurance claims with a 1986 date of loss
413 NFIP claims, 252 of them paid, for $1,057,344.
Sources: NOAA NCEI Storm Events through 30 Jun 2026; OpenFEMA DisasterDeclarationsSummaries v2 (1 Oct 2026); OpenFEMA NfipClaims v3 (8 Sep 2026). Built 1 Oct 2026.