On the map: every storm report logged this day.
On the map
Storm reports for May 7, 2017
On May 7, 2017, 7 hail, 12 damaging-wind and 1 tornado reports were logged across 7 states.
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On May 7, 2017, 7 hail, 12 damaging-wind and 1 tornado reports were logged across 7 states. The largest hail reported was 1.00″ (quarter size) in Moffat County, CO.
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 |
|---|---|---|---|---|
| CO | 2 | 9 | 0 | 1.00″ |
| MT | 2 | 2 | 0 | 1.00″ |
| IA | 1 | 0 | 0 | 1.00″ |
| SD | 1 | 0 | 0 | 0.75″ |
| WY | 1 | 0 | 0 | 0.75″ |
| CA | 0 | 0 | 1 | – |
| NM | 0 | 1 | 0 | – |
Cities with hail reported within 5 miles
| City | Population | Largest report |
|---|---|---|
| Atlantic, IA | 6,717 | 1.00″ |
| Golden, CO | 20,151 | 0.75″ |
| Sheridan, WY | 19,813 | 0.75″ |
| Spearfish, SD | 13,803 | 0.75″ |
Hail reports (7)
| Time (UTC) | Size | Location |
|---|---|---|
| 20:30 | 1.00″ | Moffat County, CO |
| 21:45 | 1.00″ | Stillwater County, MT |
| 07:40 | 1.00″ | Cass County, IA |
| 05:29 | 0.88″ | Carter County, MT |
| 20:48 | 0.75″ | Lawrence County, SD |
| 21:20 | 0.75″ | Jefferson County, CO |
| 02:25 | 0.75″ | Sheridan County, WY |
Damage, injuries and deaths
National Weather Service offices recorded about $1,000 in property damage from hail, thunderstorm wind and tornadoes across the US on this storm day (20 events in 7 states). Injuries and deaths are those the events caused directly.
| County | Events | Injuries | Deaths | Property damage |
|---|---|---|---|---|
| Yuma County, CO | 1 | 0 | 0 | $1,000 |
What the National Weather Service wrote
- Yuma County, CO (near Joes) · Thunderstorm wind 90 mph · $1,000
“A power pole was leaning at almost a 45 degree angle to the northeast roughly a mile west of Joes along Highway 36.” - Yuma County, CO (near Beecher Is) · Thunderstorm wind 81 mph
“An empty cattle trailer for a semi was blown on its side. The trailer was parked near the intersection of CR JJ and CR 15 and not attached to a semi.” - Adams County, CO (near Federal Hgt) · Thunderstorm wind 69 mph
“Intense thunderstorm winds downed several power poles.” - Arapahoe County, CO (near Englewood) · Thunderstorm wind 69 mph
“Damaging microburst winds blew apart a portion of a roof. The debris from the roof damaged a light pole. In addition, a tree was blown over which knocked out a power line.” - Denver County, CO (near Denver) · Thunderstorm wind 69 mph
“Intense microburst winds knocked down a tree which landed on a nearby house.” - Adams County, CO (near Aurora) · Thunderstorm wind 69 mph
“A tree was blown down. The intense wind also broke branches and downed several electrical lines.”
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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