Iowa Storm Activity by County
Wind, hail, and tornado activity from official NOAA sources (NWS & SPC) · Last 12 months · Updated Sep 11, 2026
Tracking hail, high-wind, and tornado reports across Iowa? This page aggregates 4775 severe weather events recorded in 99 Iowa counties over the last 12 months, including hail up to 4.5" and wind gusts up to 98 mph — every one sourced directly from official National Weather Service alerts and Storm Prediction Center verified reports. Pick a county for its day-by-day storm log, radar snapshots, and official warning excerpts.
Iowa has no active hail or wind alerts right now, and the main severe corridor remains well north and west of the state. SPC’s analysis focuses on storms from far eastern South Dakota into Minnesota, with the strongest cells capable of hail up to 2 to 2.5 inches, wind gusts around 55 to 70 mph, and a couple of tornadoes; the more robust tornado potential is centered farther north, not over Iowa.
Statewide maxima from SPC verified reports and NWS warnings, last 12 months. Tornado EF ratings are assigned by NWS survey teams after ground surveys and published in NOAA's final storm records.
Live radar across Iowa
Top 5 wind gusts in Iowa · last 12 months
- 198 mphnear 1 ESE Prairieburg, Linn CountyAug 7, 2026
- 294 mphnear 4 E Albion, Marshall CountyJun 16, 2026
- 391 mphnear 2 NNW Durant, Cedar CountyApr 17, 2026
- 490 mphnear Essex, Page CountyJun 10, 2026
- 588 mphnear Dubuque Regional Arpt, Dubuque CountyApr 14, 2026
Top 5 hail reports in Iowa · last 12 months
- 14.5"near Ryan, Delaware CountyAug 7, 2026
- 23.5"near 4 ESE Maynard, Fayette CountyJul 2, 2026
- 33.5"near Yorktown, Page CountyJun 10, 2026
- 43.25"near 3 E Otterville, Buchanan CountyApr 14, 2026
- 53.25"near 1 E Charles City, Floyd CountyApr 14, 2026
SPC verified reports only. Events inside the last 30 days show county and month — exact locations and dates are available in the app with a free account.
How Iowa compares nationally
Ranked by SPC verified storm reports (wind, hail, tornado) across all 50 states over the last 12 months. Severity-weighted index scores each report by hazard (tornado ×20, hail ×4, wind ×1) so a single derecho's flood of wind reports doesn't outweigh tornado outbreaks. Recalculated daily as of Sep 11, 2026.
Check any Iowa address for storm exposure
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Check an address free →Counties with recent storm activity
| County | Events | Hail | Wind | Tornado | Max hail | Max wind | Latest |
|---|---|---|---|---|---|---|---|
| Jackson | 117 | 9 | 107 | 1 | 1.5" | 68 mph | Aug 11, 2026 |
| Washington | 97 | 17 | 76 | 4 | 2.5" | 74 mph | August 2026 |
| Linn | 96 | 21 | 73 | 2 | 2" | 98 mph | September 2026 |
| Johnson | 93 | 19 | 73 | 1 | 2.75" | 71 mph | September 2026 |
| Cedar | 92 | 13 | 78 | 1 | 1.75" | 91 mph | August 2026 |
| Henry | 89 | 13 | 76 | 0 | 1.25" | 61 mph | August 2026 |
| Dubuque | 85 | 14 | 70 | 1 | 2" | 88 mph | Aug 11, 2026 |
| Delaware | 82 | 8 | 72 | 2 | 4.5" | 70 mph | September 2026 |
| Scott | 81 | 11 | 70 | 0 | 1.25" | 75 mph | August 2026 |
| Benton | 80 | 14 | 66 | 0 | 2" | 74 mph | September 2026 |
| Buchanan | 79 | 9 | 68 | 2 | 3.25" | 75 mph | Aug 11, 2026 |
| Hancock | 77 | 16 | 61 | 0 | 2.5" | 87 mph | September 2026 |
| Carroll | 76 | 10 | 66 | 0 | 2.5" | 65 mph | September 2026 |
| Clinton | 75 | 9 | 64 | 2 | 2" | 65 mph | Aug 11, 2026 |
| Jones | 74 | 11 | 62 | 1 | 3" | 72 mph | Aug 11, 2026 |
| Woodbury | 74 | 11 | 59 | 4 | 2" | 88 mph | Jul 8, 2026 |
| Clay | 72 | 6 | 62 | 4 | 1.5" | 70 mph | Aug 8, 2026 |
| Iowa | 71 | 12 | 59 | 0 | 2.75" | 67 mph | September 2026 |
| Sioux | 71 | 5 | 66 | 0 | 1.75" | 82 mph | August 2026 |
| O'Brien | 69 | 13 | 55 | 1 | 2" | 70 mph | Jul 3, 2026 |
| Jefferson | 68 | 13 | 54 | 1 | 2" | 70 mph | August 2026 |
| Dickinson | 66 | 2 | 63 | 1 | 2.5" | 75 mph | Aug 8, 2026 |
| Lyon | 66 | 2 | 64 | 0 | 1.25" | 73 mph | August 2026 |
| Osceola | 65 | 4 | 61 | 0 | 1.75" | 70 mph | August 2026 |
| Plymouth | 64 | 7 | 56 | 1 | 2.75" | 70 mph | September 2026 |
| Union | 63 | 3 | 60 | 0 | 1" | 70 mph | August 2026 |
| Cherokee | 62 | 3 | 56 | 3 | 1.25" | 70 mph | Jun 17, 2026 |
| Muscatine | 61 | 4 | 57 | 0 | 0.88" | 60 mph | August 2026 |
| Butler | 60 | 7 | 53 | 0 | 1.75" | 70 mph | September 2026 |
| Ida | 60 | 5 | 55 | 0 | 1.5" | 70 mph | Jul 8, 2026 |
| Buena Vista | 59 | 3 | 56 | 0 | 1" | 72 mph | Jun 17, 2026 |
| Des Moines | 59 | 7 | 52 | 0 | 0.88" | 65 mph | August 2026 |
| Lee | 59 | 12 | 43 | 4 | 1.5" | 60 mph | August 2026 |
| Louisa | 57 | 11 | 44 | 2 | 1.75" | 60 mph | August 2026 |
| Keokuk | 53 | 10 | 43 | 0 | 3" | 60 mph | September 2026 |
| Black Hawk | 52 | 10 | 42 | 0 | 2.5" | 70 mph | Aug 7, 2026 |
| Polk | 52 | 14 | 37 | 1 | 2.25" | 75 mph | September 2026 |
| Warren | 52 | 4 | 48 | 0 | 1.25" | 65 mph | August 2026 |
| Kossuth | 51 | 9 | 41 | 1 | 1.75" | 67 mph | September 2026 |
| Cerro Gordo | 50 | 8 | 40 | 2 | 1.75" | 72 mph | Aug 7, 2026 |
| Howard | 50 | 9 | 40 | 1 | 2.75" | 70 mph | August 2026 |
| Floyd | 47 | 11 | 36 | 0 | 3.25" | 70 mph | August 2026 |
| Hardin | 47 | 2 | 44 | 1 | 1.5" | 69 mph | Jul 20, 2026 |
| Story | 47 | 7 | 39 | 1 | 2.75" | 72 mph | Jul 20, 2026 |
| Allamakee | 46 | 9 | 36 | 1 | 1" | 70 mph | September 2026 |
| Marshall | 46 | 3 | 43 | 0 | 1.75" | 94 mph | Jul 20, 2026 |
| Boone | 45 | 3 | 42 | 0 | 1" | 70 mph | Jul 19, 2026 |
| Worth | 45 | 7 | 37 | 1 | 1.5" | 65 mph | Aug 7, 2026 |
| Clayton | 44 | 8 | 35 | 1 | 2.5" | 70 mph | September 2026 |
| Crawford | 44 | 11 | 33 | 0 | 2" | 65 mph | September 2026 |
| Emmet | 43 | 6 | 35 | 2 | 1.75" | 82 mph | Aug 9, 2026 |
| Van Buren | 43 | 7 | 36 | 0 | 1" | 60 mph | August 2026 |
| Winnebago | 43 | 8 | 34 | 1 | 1.25" | 65 mph | Aug 7, 2026 |
| Hamilton | 42 | 2 | 38 | 2 | 2" | 76 mph | Jul 20, 2026 |
| Mitchell | 41 | 6 | 34 | 1 | 1" | 70 mph | August 2026 |
| Montgomery | 41 | 5 | 34 | 2 | 2.75" | 74 mph | Aug 8, 2026 |
| Pottawattamie | 41 | 9 | 32 | 0 | 1" | 70 mph | Aug 8, 2026 |
| Webster | 41 | 4 | 36 | 1 | 1.75" | 65 mph | Jul 2, 2026 |
| Winneshiek | 41 | 4 | 37 | 0 | 0.88" | 70 mph | September 2026 |
| Wright | 41 | 4 | 37 | 0 | 1" | 65 mph | Aug 4, 2026 |
| Bremer | 40 | 2 | 37 | 1 | 1" | 73 mph | September 2026 |
| Fayette | 40 | 6 | 34 | 0 | 3.5" | 70 mph | September 2026 |
| Chickasaw | 39 | 3 | 36 | 0 | 1.75" | 70 mph | August 2026 |
| Franklin | 39 | 1 | 38 | 0 | 1" | 80 mph | Aug 4, 2026 |
| Grundy | 39 | 3 | 36 | 0 | 1.75" | 65 mph | Jul 20, 2026 |
| Tama | 39 | 2 | 37 | 0 | 2.5" | 70 mph | Jul 20, 2026 |
| Cass | 38 | 7 | 31 | 0 | 1.5" | 70 mph | September 2026 |
| Mills | 38 | 6 | 31 | 1 | 1" | 80 mph | Aug 8, 2026 |
| Palo Alto | 38 | 2 | 34 | 2 | 1" | 65 mph | Aug 4, 2026 |
| Calhoun | 37 | 1 | 35 | 1 | 1" | 65 mph | Jul 8, 2026 |
| Humboldt | 37 | 5 | 32 | 0 | 1.5" | 65 mph | Aug 9, 2026 |
| Pocahontas | 36 | 3 | 32 | 1 | 1.25" | 65 mph | Aug 9, 2026 |
| Harrison | 35 | 13 | 21 | 1 | 1.75" | 70 mph | Jun 13, 2026 |
| Madison | 35 | 4 | 31 | 0 | 1.25" | 70 mph | Jun 11, 2026 |
| Greene | 34 | 5 | 29 | 0 | 1" | 65 mph | September 2026 |
| Marion | 32 | 13 | 19 | 0 | 2" | 70 mph | Jul 19, 2026 |
| Page | 31 | 8 | 20 | 3 | 3.5" | 90 mph | Aug 8, 2026 |
| Sac | 30 | 1 | 29 | 0 | 0.5" | 70 mph | May 16, 2026 |
| Wayne | 28 | 1 | 27 | 0 | 0.25" | 70 mph | Aug 10, 2026 |
| Dallas | 25 | 6 | 19 | 0 | 1.25" | 65 mph | Jul 19, 2026 |
| Jasper | 25 | 3 | 22 | 0 | 1.75" | 72 mph | September 2026 |
| Shelby | 25 | 3 | 22 | 0 | 1" | 70 mph | September 2026 |
| Poweshiek | 24 | 2 | 22 | 0 | 1" | 65 mph | Jul 3, 2026 |
| Monona | 23 | 2 | 21 | 0 | 1.5" | 70 mph | Jun 9, 2026 |
| Fremont | 21 | 3 | 16 | 2 | 1.5" | 70 mph | Aug 8, 2026 |
| Wapello | 21 | 8 | 13 | 0 | 2.75" | 66 mph | Jul 3, 2026 |
| Guthrie | 20 | 3 | 17 | 0 | 0.5" | 65 mph | Jun 10, 2026 |
| Taylor | 20 | 7 | 11 | 2 | 2" | 65 mph | August 2026 |
| Decatur | 19 | 1 | 16 | 2 | 0.25" | 71 mph | August 2026 |
| Monroe | 19 | 4 | 15 | 0 | 1" | 65 mph | Aug 7, 2026 |
| Adams | 18 | 2 | 16 | 0 | 0.75" | 65 mph | August 2026 |
| Audubon | 18 | 2 | 16 | 0 | 0.5" | 68 mph | Aug 12, 2026 |
| Clarke | 18 | 4 | 13 | 1 | 2" | 65 mph | August 2026 |
| Adair | 16 | 4 | 12 | 0 | 0.75" | 70 mph | August 2026 |
| Ringgold | 16 | 6 | 8 | 2 | 1.75" | 65 mph | September 2026 |
| Davis | 15 | 3 | 10 | 2 | 0.88" | 70 mph | Jul 3, 2026 |
| Lucas | 14 | 3 | 11 | 0 | 2.5" | 67 mph | Jun 11, 2026 |
| Mahaska | 14 | 2 | 12 | 0 | 1" | 65 mph | Jun 11, 2026 |
| Appanoose | 12 | 2 | 10 | 0 | 1" | 80 mph | Jul 19, 2026 |
Today's severe weather outlook
