On the map: every storm report logged this day.
On the map
Storm reports for August 11, 2017
On August 11, 2017, 13 hail, 42 damaging-wind and 2 tornado reports were logged across 20 states.
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On August 11, 2017, 13 hail, 42 damaging-wind and 2 tornado reports were logged across 20 states. The largest hail reported was 1.00″ (quarter size) in Aroostook County, ME.
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 |
|---|---|---|---|---|
| VA | 0 | 15 | 1 | – |
| MI | 7 | 1 | 0 | 1.00″ |
| LA | 0 | 7 | 0 | – |
| TN | 0 | 4 | 0 | – |
| ND | 2 | 0 | 0 | 1.00″ |
| OH | 1 | 1 | 0 | 0.88″ |
| NM | 0 | 2 | 0 | – |
| MT | 0 | 2 | 0 | – |
| PA | 0 | 2 | 0 | – |
| ID | 0 | 2 | 0 | – |
| ME | 1 | 0 | 0 | 1.00″ |
| WY | 1 | 0 | 0 | 1.00″ |
| SD | 1 | 0 | 0 | 1.00″ |
| FL | 0 | 0 | 1 | – |
| CA | 0 | 1 | 0 | – |
| NV | 0 | 1 | 0 | – |
| AR | 0 | 1 | 0 | – |
| TX | 0 | 1 | 0 | – |
| MD | 0 | 1 | 0 | – |
| AZ | 0 | 1 | 0 | – |
Cities with hail reported within 5 miles
| City | Population | Largest report |
|---|---|---|
| Mount Clemens, MI | 15,480 | 1.00″ |
| Sandusky, MI | 2,679 | 1.00″ |
| Cleveland Heights, OH | 44,064 | 0.88″ |
| Lincoln Park, MI | 38,774 | 0.88″ |
| Southgate, MI | 29,081 | 0.88″ |
| Garfield Heights, OH | 29,014 | 0.88″ |
| Shaker Heights, OH | 28,689 | 0.88″ |
| Wyandotte, MI | 24,214 | 0.88″ |
| Maple Heights, OH | 23,081 | 0.88″ |
| South Euclid, OH | 21,363 | 0.88″ |
| Trenton, MI | 17,957 | 0.88″ |
| Beachwood, OH | 13,820 | 0.88″ |
| Warrensville Heights, OH | 13,450 | 0.88″ |
| East Cleveland, OH | 13,402 | 0.88″ |
| University Heights, OH | 13,265 | 0.88″ |
| Riverview, MI | 12,011 | 0.88″ |
| Ecorse, MI | 8,938 | 0.88″ |
Hail reports (13)
| Time (UTC) | Size | Location |
|---|---|---|
| 16:29 | 1.00″ | Aroostook County, ME |
| 18:03 | 1.00″ | Sanilac County, MI |
| 21:55 | 1.00″ | Macomb County, MI |
| 22:35 | 1.00″ | Niobrara County, WY |
| 00:17 | 1.00″ | Perkins County, SD |
| 03:59 | 1.00″ | Billings County, ND |
| 18:20 | 0.88″ | Oakland County, MI |
| 18:20 | 0.88″ | Oakland County, MI |
| 20:14 | 0.88″ | Wayne County, MI |
| 21:54 | 0.88″ | Cuyahoga County, OH |
| 05:30 | 0.88″ | Billings County, ND |
| 18:23 | 0.75″ | Oakland County, MI |
| 21:37 | 0.75″ | Macomb County, MI |
Damage, injuries and deaths
National Weather Service offices recorded about $140,000 in property damage from hail, thunderstorm wind and tornadoes across the US on this storm day (57 events in 20 states). Injuries and deaths are those the events caused directly.
| County | Events | Injuries | Deaths | Property damage |
|---|---|---|---|---|
| Santa Fe County, NM | 1 | 0 | 0 | $75,000 |
| Shelby County, TN | 1 | 0 | 0 | $50,000 |
| Perry County, PA | 2 | 0 | 0 | $8,000 |
| Maricopa County, AZ | 1 | 0 | 0 | $5,000 |
| Lake County, OH | 1 | 0 | 0 | $2,000 |
What the National Weather Service wrote
- Santa Fe County, NM (near Edgewood) · Thunderstorm wind 75 mph · $75,000
“Outflow winds from a wet microburst north of Edgewood downed about a dozen power poles. An extended power outage impacted at least 6,300 customers.” - Shelby County, TN (near Piper) · Thunderstorm wind 58 mph · $50,000
“Several trees down around Collierville Elementary school. Some trees fell on cars.” - Maricopa County, AZ (near Litchfield Park) · Thunderstorm wind 49 mph · $5,000
“Isolated thunderstorms developed across portions of the greater Phoenix area during the early morning hours on August 12th and some of them affected the area around Litchfield Park in west Phoenix.” - Perry County, PA (near Ickesburg) · Thunderstorm wind 60 mph · $4,000
“A severe thunderstorm producing winds estimated near 60 mph knocked down trees and wires near Ickesburg.” - Perry County, PA (near New Bloomfield) · Thunderstorm wind 60 mph · $4,000
“A severe thunderstorm producing winds estimated near 60 mph knocked down trees and wires near New Bloomfield.” - Lake County, OH (near Concord) · Thunderstorm wind 58 mph · $2,000
“Thunderstorm winds downed a couple of trees near Concord.”
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 11, 2017
National Weather Service survey teams mapped 1 tornado path from this storm day (1 EF0), 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 |
|---|---|---|---|---|---|---|
| EF0 | 60 mph | 0.2 mi | 25 yd | 0 / 0 | 21:03–14:00 UTC | NWS Key West |
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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