On the map: every storm report logged this day.
On the map
Storm reports for June 21, 2017
On June 21, 2017, 45 hail, 79 damaging-wind and 8 tornado reports were logged across 16 states.
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On June 21, 2017, 45 hail, 79 damaging-wind and 8 tornado reports were logged across 16 states. The largest hail reported was 2.00″ (hen egg size) in Lyon County, MN.
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 |
|---|---|---|---|---|
| MN | 17 | 6 | 2 | 2.00″ |
| NJ | 0 | 19 | 0 | – |
| SD | 11 | 4 | 0 | 1.75″ |
| KS | 2 | 12 | 0 | 1.00″ |
| PA | 0 | 13 | 0 | – |
| TX | 3 | 9 | 0 | 1.25″ |
| OK | 1 | 7 | 0 | 1.75″ |
| AL | 0 | 3 | 4 | – |
| NE | 5 | 1 | 0 | 1.50″ |
| IA | 4 | 0 | 0 | 1.00″ |
| CO | 0 | 3 | 0 | – |
| CT | 2 | 0 | 0 | 1.00″ |
| MS | 0 | 0 | 1 | – |
| LA | 0 | 0 | 1 | – |
| FL | 0 | 1 | 0 | – |
| NV | 0 | 1 | 0 | – |
Cities with hail reported within 5 miles
| City | Population | Largest report |
|---|---|---|
| Pierre, SD | 13,788 | 1.75″ |
| Dumas, TX | 14,834 | 1.25″ |
| Broken Bow, NE | 3,491 | 1.00″ |
| Sibley, IA | 2,787 | 1.00″ |
| Milford, IA | 3,258 | 0.88″ |
| Blue Earth, MN | 3,159 | 0.88″ |
| Bemidji, MN | 15,733 | 0.75″ |
| Breezy Point, MN | 2,750 | 0.75″ |
Hail reports (45)
| Time (UTC) | Size | Location |
|---|---|---|
| 09:42 | 2.00″ | Lyon County, MN |
| 09:52 | 2.00″ | Lyon County, MN |
| 00:33 | 1.75″ | Texas County, OK |
| 08:08 | 1.75″ | Hughes County, SD |
| 08:51 | 1.75″ | Deuel County, SD |
| 08:57 | 1.75″ | Lincoln County, MN |
| 09:10 | 1.75″ | Lincoln County, MN |
| 09:35 | 1.75″ | Lyon County, MN |
| 09:52 | 1.75″ | Jerauld County, SD |
| 09:52 | 1.75″ | Lyon County, MN |
| 10:30 | 1.75″ | Sanborn County, SD |
| 02:42 | 1.50″ | Furnas County, NE |
| 10:48 | 1.50″ | Miner County, SD |
| 00:10 | 1.25″ | Moore County, TX |
| 00:27 | 1.25″ | Mahnomen County, MN |
| 05:05 | 1.25″ | Martin County, MN |
| 10:35 | 1.25″ | Sanborn County, SD |
| 20:02 | 1.00″ | Northwest Hills Planning Region, CT |
| 21:00 | 1.00″ | Dallam County, TX |
| 23:15 | 1.00″ | Clay County, MN |
| 23:22 | 1.00″ | Becker County, MN |
| 23:35 | 1.00″ | Polk County, MN |
| 23:45 | 1.00″ | Gray County, KS |
| 00:05 | 1.00″ | Otter Tail County, MN |
| 01:21 | 1.00″ | Custer County, NE |
| 01:30 | 1.00″ | Furnas County, NE |
| 02:40 | 1.00″ | Valley County, NE |
| 03:50 | 1.00″ | Osceola County, IA |
| 08:20 | 1.00″ | Hamlin County, SD |
| 08:40 | 1.00″ | Clark County, SD |
| 09:56 | 1.00″ | Lyon County, MN |
| 10:00 | 1.00″ | Stanley County, SD |
| 10:19 | 1.00″ | Hughes County, SD |
| 21:51 | 0.88″ | Kearny County, KS |
| 23:16 | 0.88″ | Hartley County, TX |
| 01:35 | 0.88″ | Furnas County, NE |
| 03:58 | 0.88″ | Osceola County, IA |
| 04:42 | 0.88″ | Dickinson County, IA |
| 05:05 | 0.88″ | Faribault County, MN |
| 09:09 | 0.88″ | Lincoln County, MN |
| 10:19 | 0.88″ | Stanley County, SD |
| 20:15 | 0.75″ | Northwest Hills Planning Region, CT |
| 02:02 | 0.75″ | Beltrami County, MN |
| 02:42 | 0.75″ | Crow Wing County, MN |
| 03:20 | 0.75″ | Clay County, IA |
Damage, injuries and deaths
National Weather Service offices recorded about $116,000 in property damage, $150,000 in crop damage and 2 injuries from hail, thunderstorm wind and tornadoes across the US on this storm day (132 events in 16 states). Injuries and deaths are those the events caused directly.
| County | Events | Injuries | Deaths | Property damage |
|---|---|---|---|---|
| Hamlin County, SD | 1 | 2 | 0 | – |
| Covington County, AL | 1 | 0 | 0 | $50,000 |
| Clarke County, AL | 1 | 0 | 0 | $25,000 |
| Furnas County, NE | 1 | 0 | 0 | $15,000 |
| Mobile County, AL | 2 | 0 | 0 | $10,000 |
| Escambia County, FL | 1 | 0 | 0 | $10,000 |
| Mesa County, CO | 2 | 0 | 0 | $4,000 |
| Geneva County, AL | 1 | 0 | 0 | $1,000 |
| Gray County, KS | 1 | 0 | 0 | $1,000 |
What the National Weather Service wrote
- Covington County, AL (near Green Bay) · Tornado EF1 · $50,000
“The tornado touched down on Jackson Town Road, just north of Adams Pond Road. A residence experienced the loss of its roof over an open door garage. Numerous trees|were uprooted in the same area.” - Clarke County, AL (near Whatley) · Tornado EF0 · $25,000
“A brief EF-0 tornado touched down on a private hunting cap just west of Amityville Road. The tornado damaged a 100 to 150 pine trees along its short path.” - Escambia County, FL (near Brownsville) · Thunderstorm wind 60 mph · $10,000
“A severe thunderstorm downed trees and power lines and produce some cometic damage to homes nar Aquamarine and Emerald Avenue.” - Mobile County, AL (near Heron Bay) · Thunderstorm wind 60 mph · $5,000
“A severe thunderstorm downed trees across Highway 188 near Dauphin Island Parkway.” - Mobile County, AL (near Dawes) · Thunderstorm wind 60 mph · $5,000
“A severe thunderstorm downed trees across Dawes Lane near Three Notch Road.” - Mesa County, CO (near Mack) · Thunderstorm wind 70 mph · $3,000
“Several tents and outbuildings from a recent concert event were damaged at the Jam Ranch in Loma.”
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 June 21, 2017
National Weather Service survey teams mapped 4 tornado paths from this storm day (1 EF1, 3 EF0), 12 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 |
|---|---|---|---|---|---|---|
| EF1 | 95 mph | 4.9 mi | 75 yd | 0 / 0 | 23:57–00:08 UTC | NWS Mobile |
| EF0 | 85 mph | 4.2 mi | 75 yd | 0 / 0 | 13:25–13:31 UTC | NWS New Orleans |
| EF0 | 70 mph | 1.9 mi | 50 yd | 0 / 0 | 17:55–17:59 UTC | NWS New Orleans |
| EF0 | 75 mph | 0.9 mi | 25 yd | 0 / 0 | 20:08–20:09 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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