Top 20 SPC Ground-Truth Winds
Top 20 SPC Ground-Truth Winds Reported in August 2026, by IDOLCheck. Also: Highest hail.
Strongest gust August 2026: 111 mph in Butte County, SD. SPC local storm reports only — measured gusts, not warning polygons.
| # | County | State | Peak | Source | When |
|---|---|---|---|---|---|
| 1 | Butte County | South Dakota | 111 mph | SPC verified report | Aug 11, 2026 |
“Winds sustained at 58 MPH gusting to 111 MPH. (UNR)” | |||||
| 2 | Porter County | Indiana | 110 mph | SPC verified report | Aug 11, 2026 |
“Pockets of extreme wind damage including over 800f tree canopy loss in several forested areas. After consultation with wind damage experts... peak wind gusts were est (LOT)” | |||||
| 3 | New Haven County | Connecticut | 103 mph | SPC verified report | Aug 13, 2026 |
“Mesonet site XLTH at Lighthouse Point measured a 103 mph wind gust. (OKX)” | |||||
| 4 | Jackson County | South Dakota | 102 mph | SPC verified report | Aug 11, 2026 |
| 5 | Harding County | South Dakota | 100 mph | SPC verified report | Aug 30, 2026 |
| 6 | Millard County | Utah | 100 mph | SPC verified report | Aug 29, 2026 |
“1 INJ NWS Storm Survey revealed destructive straight-line wind... and wind-driven hail damage in Lynndyl. 34 empty train cars overturned... extensive siding... (SLC)” | |||||
| 7 | Lake County | Indiana | 99 mph | SPC verified report | Aug 11, 2026 |
“Peak gust of 86 kt or 99 mph measured at Gary Airport Tower. (LOT)” | |||||
| 8 | Linn County | Iowa | 98 mph | SPC verified report | Aug 7, 2026 |
“Delayed report of measured 98 mph wind gust at Prairieburg. (DVN)” | |||||
| 9 | Fall River County | South Dakota | 97 mph | SPC verified report | Aug 17, 2026 |
| 10 | Kane County | Illinois | 97 mph | SPC verified report | Aug 11, 2026 |
“Home weather station measured a 97 mph wind gust. (LOT)” | |||||
| 11 | Mellette County | South Dakota | 96 mph | SPC verified report | Aug 11, 2026 |
| 12 | Will County | Illinois | 96 mph | SPC verified report | Aug 11, 2026 |
| 13 | Tooele County | Utah | 93 mph | SPC verified report | Aug 13, 2026 |
| 14 | Logan County | Nebraska | 92 mph | SPC verified report | Aug 27, 2026 |
| 15 | Kankakee County | Illinois | 91 mph | SPC verified report | Aug 11, 2026 |
“Corrects previous tstm wnd gst report from 3 NE Bradley. Private weather station: KILBOURB2. (LOT)” | |||||
| 16 | Lincoln County | Nebraska | 91 mph | SPC verified report | Aug 27, 2026 |
| 17 | Custer County | Nebraska | 90 mph | SPC verified report | Aug 13, 2026 |
| 18 | Todd County | South Dakota | 90 mph | SPC verified report | Aug 12, 2026 |
| 19 | Valley County | Nebraska | 90 mph | SPC verified report | Aug 17, 2026 |
“Corrects previous non-tstm wnd gst report from 1 NW Ord. ASOS station KODX Ord Airport. (GID)” | |||||
| 20 | San Bernardino County | California | 89 mph | SPC verified report | Aug 11, 2026 |
“KDAG gusted to 59 mph at 1540 PM... peak gust of 89 MPH at 1542 PM. (VEF)” | |||||
Was it this strong at a specific address?
IDOLCheck does not verify storm evidence at a property. We combine official reports and warning records to show the relevant storm activity associated with a specific address or location, including the most recent 30 days.
Check an address free →How this board is scored
SPC ground truth. Ranked by the strongest measured gust in a local storm report. Warning polygons and forecast-text mentions are a different board (Combined).
30-day gate. Events from the last 30 days show month-only dates and no official quote. Full report text unlocks after that, or immediately in the app.
Week and month cuts use midnight America/Chicago (SPC convention). This week runs Sunday through today.
Informational only — not a substitute for verifying official storm records. Source: NOAA Storm Prediction Center via HailyAPI.