Wisconsin, 2011
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 2011 was 1,552 against 1,552 in 2010.
Counties with the most recorded events
Notable events
| Date | County | Event type | Magnitude | Property damage | Deaths | Injuries |
|---|---|---|---|---|---|---|
| 1 Feb 2011 | Milwaukee | Blizzard | — | $10,000 | 3 | 2 |
| 17 Feb 2011 | Clark | Dense Fog | — | $20,000 | 1 | 9 |
| 17 Jul 2011 | Monroe | Excessive Heat | — | $5,000 | 1 | 6 |
| 17 Jul 2011 | Sauk | Excessive Heat | — | — | 1 | 5 |
| 17 Jul 2011 | Columbia | Excessive Heat | — | — | 1 | 5 |
| 30 Jun 2011 | Kenosha | Thunderstorm Wind | 75 mph | $100,000 | 1 | 3 |
| 23 Aug 2011 | Clark | Tornado | EF2 | $1,400,000 | 1 | 2 |
| 3 Apr 2011 | Dodge | Hail | 0.75 in | $12,000 | 1 | 2 |
| 29 Jan 2011 | La Crosse | Winter Weather | — | $6,600 | 1 | 2 |
| 17 Jan 2011 | Sauk | Winter Weather | — | — | 1 | 1 |
| 19 Aug 2011 | Marinette | Tornado | EF1 | $110,000 | 1 | — |
| 17 Jul 2011 | Crawford | Excessive Heat | — | $12,000 | 1 | — |
| 26 Sep 2011 | Racine | Flood | — | $6,000 | 1 | — |
| 22 Mar 2011 | Vernon | Winter Weather | — | $2,000 | 1 | — |
| 29 Sep 2011 | Milwaukee | Strong Wind | 45 mph | $2,000 | 1 | — |
| 1 Feb 2011 | Racine | Blizzard | — | — | 1 | — |
| 17 Jan 2011 | Dane | Winter Weather | — | — | 1 | — |
| 29 Dec 2011 | Jefferson | Winter Weather | — | — | 1 | — |
| 17 Jul 2011 | Marquette | Excessive Heat | — | — | 1 | — |
| 1 Jul 2011 | Burnett | Lightning | — | — | 1 | — |
| 20 Jul 2011 | Milwaukee | Heat | — | — | — | 60 |
| 17 Jul 2011 | Dane | Excessive Heat | — | — | — | 25 |
| 3 Dec 2011 | Trempealeau | Winter Weather | — | $10,000 | — | 6 |
| 17 Jul 2011 | Rock | Excessive Heat | — | — | — | 5 |
| 30 Jul 2011 | Dodge | Thunderstorm Wind | 40 mph | — | — | 5 |
| 28 Jan 2011 | Monroe | Winter Weather | — | $6,000 | — | 4 |
| 17 Jan 2011 | Jefferson | Winter Weather | — | — | — | 4 |
| 22 May 2011 | La Crosse | Tornado | EF2 | $15,200,000 | — | 2 |
| 10 Apr 2011 | Lincoln | Tornado | EF3 | $10,900,000 | — | 2 |
| 9 May 2011 | Dodge | Lightning | — | $50,000 | — | 2 |
| 17 Jul 2011 | La Crosse | Excessive Heat | — | $7,000 | — | 2 |
| 29 Jan 2011 | Monroe | Winter Weather | — | $4,000 | — | 2 |
| 10 Apr 2011 | La Crosse | Hail | 2.00 in | $20,000,000 | — | — |
| 17 Jan 2011 | Sheboygan | Winter Weather | — | — | — | 2 |
| 8 Jun 2011 | Racine | Thunderstorm Wind | 64 mph | — | — | 2 |
| 22 May 2011 | Wood | Tornado | EF1 | $1,020,000 | — | 1 |
| 22 May 2011 | Monroe | Tornado | EF1 | $915,000 | — | 1 |
| 21 Jun 2011 | Waukesha | Thunderstorm Wind | 110 mph | $276,000 | — | 1 |
| 22 May 2011 | Dodge | Thunderstorm Wind | 69 mph | $10,000 | — | 1 |
| 30 Jul 2011 | Barron | Thunderstorm Wind | 64 mph | $10,000 | — | 1 |
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 2011
| Declared | Number | Type | Incident | Title | Counties |
|---|---|---|---|---|---|
| 5 Apr 2011 | DR-1966 | Major disaster | Snowstorm | Severe Winter Storm And Snowstorm | 11 |
Flood insurance claims with a 2011 date of loss
104 NFIP claims, 60 of them paid, for $717,961.
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.