On the map: every storm report logged this day.
On the map
Storm reports for August 17, 2006
On August 17, 2006, 47 hail, 28 damaging-wind and 0 tornado reports were logged across 9 states.
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On August 17, 2006, 47 hail, 28 damaging-wind and 0 tornado reports were logged across 9 states. The largest hail reported was 2.00″ (hen egg size) in Meade County, SD.
Storm day runs 7 a.m. to 7 a.m. Eastern (12:00–12:00 UTC), the convention the Storm Prediction Center uses. Radar hail estimates start October 2019.
Storm reports by state
| State | Hail | Wind | Tornado | Largest hail |
|---|---|---|---|---|
| MT | 17 | 4 | 0 | 1.75″ |
| SD | 17 | 2 | 0 | 2.00″ |
| KS | 2 | 9 | 0 | 0.88″ |
| TX | 1 | 8 | 0 | 1.00″ |
| WY | 5 | 1 | 0 | 1.75″ |
| ND | 4 | 0 | 0 | 1.50″ |
| MO | 0 | 3 | 0 | – |
| NM | 1 | 0 | 0 | 0.88″ |
| CO | 0 | 1 | 0 | – |
Cities with hail reported within 5 miles
| City | Population | Largest report |
|---|---|---|
| Sturgis, SD | 7,014 | 1.25″ |
| Rapid City, SD | 79,894 | 1.00″ |
| Laurel, MT | 7,251 | 1.00″ |
| Onalaska, TX | 3,367 | 1.00″ |
Hail reports (47)
| Time (UTC) | Size | Location |
|---|---|---|
| 22:18 | 2.00″ | Meade County, SD |
| 21:54 | 1.75″ | Meade County, SD |
| 01:00 | 1.75″ | Yellowstone County, MT |
| 02:00 | 1.75″ | Crook County, WY |
| 06:25 | 1.75″ | Campbell County, WY |
| 12:18 | 1.50″ | Golden Valley County, ND |
| 03:30 | 1.50″ | Pennington County, SD |
| 21:50 | 1.25″ | Meade County, SD |
| 00:27 | 1.25″ | Yellowstone County, MT |
| 02:30 | 1.25″ | Crook County, WY |
| 12:52 | 1.00″ | Billings County, ND |
| 13:20 | 1.00″ | Stark County, ND |
| 20:40 | 1.00″ | Park County, MT |
| 21:10 | 1.00″ | Lawrence County, SD |
| 21:40 | 1.00″ | Meade County, SD |
| 22:35 | 1.00″ | Meade County, SD |
| 23:06 | 1.00″ | Pennington County, SD |
| 23:25 | 1.00″ | Stillwater County, MT |
| 23:27 | 1.00″ | Polk County, TX |
| 23:45 | 1.00″ | Stillwater County, MT |
| 00:15 | 1.00″ | Yellowstone County, MT |
| 00:25 | 1.00″ | Yellowstone County, MT |
| 00:26 | 1.00″ | Yellowstone County, MT |
| 01:00 | 1.00″ | Harding County, SD |
| 01:15 | 1.00″ | Harding County, SD |
| 01:20 | 1.00″ | Big Horn County, MT |
| 01:28 | 1.00″ | Yellowstone County, MT |
| 01:43 | 1.00″ | Treasure County, MT |
| 03:05 | 1.00″ | Potter County, SD |
| 03:40 | 1.00″ | Golden Valley County, ND |
| 04:10 | 1.00″ | Pennington County, SD |
| 05:55 | 1.00″ | Campbell County, WY |
| 20:40 | 0.88″ | Park County, MT |
| 21:39 | 0.88″ | Colfax County, NM |
| 23:10 | 0.88″ | Stillwater County, MT |
| 23:36 | 0.88″ | Stillwater County, MT |
| 01:33 | 0.88″ | Wichita County, KS |
| 02:50 | 0.88″ | Fallon County, MT |
| 11:35 | 0.88″ | Hughes County, SD |
| 11:43 | 0.88″ | Potter County, SD |
| 00:29 | 0.75″ | Wichita County, KS |
| 01:40 | 0.75″ | Yellowstone County, MT |
| 02:45 | 0.75″ | Crook County, WY |
| 03:00 | 0.75″ | Fallon County, MT |
| 03:58 | 0.75″ | Hyde County, SD |
| 06:30 | 0.75″ | Hughes County, SD |
| 11:30 | 0.75″ | Stanley County, SD |
Damage, injuries and deaths
National Weather Service offices recorded about $109,000 in property damage from hail, thunderstorm wind and tornadoes across the US on this storm day (75 events in 9 states). Injuries and deaths are those the events caused directly.
| County | Events | Injuries | Deaths | Property damage |
|---|---|---|---|---|
| Leavenworth County, KS | 1 | 0 | 0 | $40,000 |
| Clay County, MO | 1 | 0 | 0 | $19,000 |
| Allen County, KS | 1 | 0 | 0 | $15,000 |
| Nodaway County, MO | 2 | 0 | 0 | $9,000 |
| Polk County, TX | 1 | 0 | 0 | $8,000 |
| Trinity County, TX | 1 | 0 | 0 | $7,000 |
| Campbell County, WY | 1 | 0 | 0 | $5,000 |
| Walker County, TX | 1 | 0 | 0 | $3,000 |
| Madison County, TX | 1 | 0 | 0 | $2,000 |
| Gregg County, TX | 1 | 0 | 0 | $1,000 |
What the National Weather Service wrote
- Leavenworth County, KS (near Basehor) · Thunderstorm wind 66 mph · $40,000
“Two barns destroyed along with a metal garage...trees also downed.” - Clay County, MO (near Liberty) · Thunderstorm wind 70 mph · $19,000
“Nine utility poles snapped and one transformer destroyed from thunderstorm winds.” - Allen County, KS (near Iola) · Thunderstorm wind 70 mph · $15,000
“Two large trees were downed, windows from a house were shattered, and two barns sustained damage.” - Nodaway County, MO (near Maryville) · Thunderstorm wind 70 mph · $5,000
“Roof partially torn off home. Window blown out of a home. Several trees down.” - Campbell County, WY (near Gillette) · Hail 1.75″ · $5,000
“Numerous automobile windshields were shattered at Green Valley Estates north of Gillette.” - Nodaway County, MO (near Parnell) · Thunderstorm wind 70 mph · $4,000
“Several utility poles damaged in Parnell.”
Event narratives from NWS Storm Data, shortened. Up to six per day, chosen by deaths, injuries, damage and size.
Source: NOAA National Centers for Environmental Information (NCEI), Storm Events Database, as entered by National Weather Service offices; data through July 31, 2026. Damage is in dollars of the year, not adjusted for inflation.
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