On the map: every storm report logged this day.
On the map
Storm reports for September 15, 2017
On September 15, 2017, 16 hail, 3 damaging-wind and 1 tornado reports were logged across 5 states.
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Other storms on September 15 →
On September 15, 2017, 16 hail, 3 damaging-wind and 1 tornado reports were logged across 5 states. The largest hail reported was 1.50″ (ping pong ball size) in Buffalo County, NE.
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 |
|---|---|---|---|---|
| NE | 13 | 2 | 0 | 1.50″ |
| SD | 1 | 0 | 1 | 1.00″ |
| KS | 1 | 0 | 0 | 0.88″ |
| CO | 1 | 0 | 0 | 0.75″ |
| FL | 0 | 1 | 0 | – |
Cities with hail reported within 5 miles
| City | Population | Largest report |
|---|---|---|
| Sidney, NE | 6,483 | 1.25″ |
| Firestone, CO | 19,396 | 0.75″ |
| Frederick, CO | 17,937 | 0.75″ |
Hail reports (16)
| Time (UTC) | Size | Location |
|---|---|---|
| 01:37 | 1.50″ | Buffalo County, NE |
| 00:00 | 1.25″ | Dawson County, NE |
| 00:40 | 1.25″ | Buffalo County, NE |
| 05:30 | 1.25″ | Kimball County, NE |
| 06:25 | 1.25″ | Cheyenne County, NE |
| 00:05 | 1.00″ | Lake County, SD |
| 01:45 | 1.00″ | Buffalo County, NE |
| 06:21 | 1.00″ | Cheyenne County, NE |
| 06:50 | 1.00″ | Cheyenne County, NE |
| 07:00 | 1.00″ | Garden County, NE |
| 01:05 | 0.88″ | Norton County, KS |
| 01:30 | 0.88″ | Buffalo County, NE |
| 01:53 | 0.88″ | Buffalo County, NE |
| 02:05 | 0.88″ | Boone County, NE |
| 02:46 | 0.88″ | Kearney County, NE |
| 04:45 | 0.75″ | Weld County, CO |
Damage, injuries and deaths
National Weather Service offices recorded about $450,000 in property damage and $6.3 million in crop damage from hail, thunderstorm wind and tornadoes across the US on this storm day (20 events in 5 states). Injuries and deaths are those the events caused directly.
| County | Events | Injuries | Deaths | Property damage |
|---|---|---|---|---|
| Buffalo County, NE | 3 | 0 | 0 | $425,000 |
| Dawson County, NE | 1 | 0 | 0 | $25,000 |
What the National Weather Service wrote
- Buffalo County, NE (near Amherst) · Thunderstorm wind 60 mph · $200,000
“Wind gusts were estimated to be near 60 MPH and was accompanied by hail up to the size of ping pong balls.” - Buffalo County, NE (near Amherst) · Hail 1.50″ · $200,000
“Hail ranged in size from quarters to ping pong balls.” - Dawson County, NE (near Overton) · Thunderstorm wind 64 mph
“Wind gusts were estimated to be near 65 MPH. The wind was accompanied by pea size hail.” - Alachua County, FL (near Arredonda) · Thunderstorm wind 60 mph
“The public estimated a wind gust of 60 mph.” - Kimball County, NE (near Kimball) · Hail 1.25″
“Half dollar size hail was observed at Kimball.” - Cheyenne County, NE (near Sidney) · Hail 1.25″
“Half dollar size hail was observed at Sidney.”
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.
Guides: What radar-estimated hail (MESH) is and isn't · Storm reports: preliminary vs final
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