On the map: every storm report logged this day.
On the map
Storm reports for August 31, 2008
On August 31, 2008, 6 hail, 11 damaging-wind and 1 tornado reports were logged across 8 states.
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On August 31, 2008, 6 hail, 11 damaging-wind and 1 tornado reports were logged across 8 states. The largest hail reported was 0.88″ (nickel size) in Silver Bow County, MT.
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 |
|---|---|---|---|---|
| UT | 0 | 7 | 0 | – |
| MT | 4 | 0 | 0 | 0.88″ |
| ID | 2 | 0 | 0 | 0.75″ |
| FL | 0 | 0 | 1 | – |
| NC | 0 | 1 | 0 | – |
| SC | 0 | 1 | 0 | – |
| AL | 0 | 1 | 0 | – |
| GA | 0 | 1 | 0 | – |
Cities with hail reported within 5 miles
| City | Population | Largest report |
|---|---|---|
| Salmon, ID | 3,257 | 0.75″ |
Hail reports (6)
| Time (UTC) | Size | Location |
|---|---|---|
| 21:29 | 0.88″ | Silver Bow County, MT |
| 21:30 | 0.88″ | Beaverhead County, MT |
| 20:05 | 0.75″ | Silver Bow County, MT |
| 20:07 | 0.75″ | Silver Bow County, MT |
| 21:03 | 0.75″ | Lemhi County, ID |
| 02:08 | 0.75″ | Lemhi County, ID |
Damage, injuries and deaths
National Weather Service offices recorded about $25,000 in property damage from hail, thunderstorm wind and tornadoes across the US on this storm day (18 events in 8 states). Injuries and deaths are those the events caused directly.
| County | Events | Injuries | Deaths | Property damage |
|---|---|---|---|---|
| Elmore County, AL | 1 | 0 | 0 | $10,000 |
| Upson County, GA | 1 | 0 | 0 | $7,000 |
| Box Elder County, UT | 1 | 0 | 0 | $5,000 |
| Weber County, UT | 1 | 0 | 0 | $3,000 |
What the National Weather Service wrote
- Elmore County, AL (near Butts Mill) · Thunderstorm wind 46 mph · $10,000
“Sporadic trees and power lines were blown down from thunderstorm outflow, from the Friendship Community to Deatsville.” - Upson County, GA (near Atwater) · Thunderstorm wind 43 mph · $7,000
“The Upson County Emergency Management Director reported that a couple of power lines were down on Smyrna Church Road near the Pike county line. One of the power lines was down on a vehicle.” - Box Elder County, UT (near Lakeside) · Thunderstorm wind 79 mph · $5,000
“A line of thunderstorms moved across the Great Salt Lake with several severe wind gusts. The strongest recorded gust was 79 mph at the Lakeside mesonet site.” - Weber County, UT (near Roy) · Thunderstorm wind 61 mph · $3,000
“Strong thunderstorm winds knocked down a large tree and several large tree branches near Layton. Twenty-five minutes later, the Ogden Peak mesonet site recorded a wind gust of 61 mph.” - Tooele County, UT (near Gold Hill) · Thunderstorm wind 67 mph
“The Callao mesonet site measured a 67 mph wind gust.” - Tooele County, UT (near Wendover Af Aux Arpt) · Thunderstorm wind 64 mph
“The Wendover Port of Entry mesonet site recorded a maximum wind gust of 65 mph.”
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.
NWS Tornado Damage Surveys for August 31, 2008
National Weather Service survey teams mapped 1 tornado path from this storm day (1 EFU), 0 miles in all. The map above draws each surveyed path as the NWS mapped it, colored by the EF rating of each stretch, in place of the straight start-to-end line.
| Rating | Peak wind | Path length | Max width | Deaths / injuries | On the ground | Surveyed by |
|---|---|---|---|---|---|---|
| EFU | – | – | 20 yd | 0 / 0 | 08:15–08:16 UTC | NWS Mobile |
Source: NOAA National Weather Service Damage Assessment Toolkit (DAT): the tornado paths and EF-rating zones NWS survey teams mapped after each storm. Survey data are preliminary and can be revised; NOAA's official record is Storm Data (NCEI). Paths are simplified to about 30 m. Times are when the tornado was on the ground, in UTC.
Guides: What radar-estimated hail (MESH) is and isn't · Storm reports: preliminary vs final
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