On the map: every storm report logged this day.
On the map
Storm reports for August 20, 2016
On August 20, 2016, 6 hail, 7 damaging-wind and 13 tornado reports were logged across 10 states.
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On August 20, 2016, 6 hail, 7 damaging-wind and 13 tornado reports were logged across 10 states. The largest hail reported was 1.25″ (half dollar size) in Yavapai County, AZ.
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 |
|---|---|---|---|---|
| MI | 0 | 1 | 6 | – |
| AZ | 3 | 2 | 0 | 1.25″ |
| IN | 0 | 0 | 3 | – |
| SC | 0 | 3 | 0 | – |
| CO | 2 | 0 | 0 | 1.00″ |
| OH | 0 | 0 | 2 | – |
| NM | 1 | 0 | 0 | 1.00″ |
| WI | 0 | 0 | 1 | – |
| KY | 0 | 0 | 1 | – |
| TN | 0 | 1 | 0 | – |
Cities with hail reported within 5 miles
| City | Population | Largest report |
|---|---|---|
| Prescott, AZ | 48,224 | 1.25″ |
Hail reports (6)
| Time (UTC) | Size | Location |
|---|---|---|
| 20:25 | 1.25″ | Yavapai County, AZ |
| 19:59 | 1.00″ | Coconino County, AZ |
| 22:25 | 1.00″ | Archuleta County, CO |
| 00:35 | 1.00″ | Custer County, CO |
| 01:05 | 1.00″ | Torrance County, NM |
| 01:30 | 0.75″ | Maricopa County, AZ |
Damage, injuries and deaths
National Weather Service offices recorded about $5.6 million in property damage and $60,000 in crop damage from hail, thunderstorm wind and tornadoes across the US on this storm day (26 events in 10 states). Injuries and deaths are those the events caused directly.
| County | Events | Injuries | Deaths | Property damage |
|---|---|---|---|---|
| Allegan County, MI | 2 | 0 | 0 | $3.5 million |
| Kent County, MI | 3 | 0 | 0 | $775,000 |
| Ionia County, MI | 1 | 0 | 0 | $750,000 |
| Ottawa County, MI | 1 | 0 | 0 | $500,000 |
| Barren County, KY | 1 | 0 | 0 | $50,000 |
| Kewaunee County, WI | 1 | 0 | 0 | $25,000 |
| Delaware County, OH | 1 | 0 | 0 | $20,000 |
| Darke County, OH | 1 | 0 | 0 | $11,000 |
| Torrance County, NM | 1 | 0 | 0 | $5,000 |
| Maricopa County, AZ | 1 | 0 | 0 | $2,000 |
| Williamson County, TN | 1 | 0 | 0 | $2,000 |
What the National Weather Service wrote
- Allegan County, MI (near Kibbie) · Tornado EF1 · $2 million
“An EF-1 tornado touched down just southwest of Bangor on and tracked northeast. The entire city lost power as well as hundreds of trees. Multiple structures in Bangor were damaged as well. Roof damage was noted on Main Street.” - Allegan County, MI (near Bravo) · Tornado EF1 · $1.5 million
“The second tornado of the day began 6 miles southeast of Fennville and tracked to 4 miles northeast of Hamilton and was also rated EF-1 and caused heavy tree damage along it's path.” - Ionia County, MI (near Orleans) · Tornado EF1 · $750,000
“Tornado damage began just east of Orleans and moved northeast where it crossed M-44, bringing several large trees down, one of which fell on a house. The tornado then crossed West Long Lake Road where the concrete block wall of a garage was blown out and the wind peeled shingles off the roof of a…” - Ottawa County, MI (near Gitchel) · Tornado EF1 · $500,000
“The day's third tornado, also rated EF-1, began 2 miles northwest of Burnips and tracked to 2 miles southeast of Jamestown in extreme southeast Ottawa County, causing heavy tree damage.” - Kent County, MI (near Grandville Arpt) · Tornado EF0 · $500,000
“The fourth tornado of the day was an EF-0 in southwestern Kent county. Along the path, hundreds of trees were damaged or knocked over resulting in tens of thousands of power outages.” - Kent County, MI (near North Byron) · Thunderstorm wind 100 mph · $250,000
“National Weather Service damage surveys identified areas of straight line wind damage in Kent County from August 20th storms with estimated winds of around 100mph.”
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 20, 2016
National Weather Service survey teams mapped 5 tornado paths from this storm day (5 EF0), 6 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 | – | 2.4 mi | 70 yd | 0 / 0 | 21:42–21:50 UTC | NWS Northern Indiana |
| EF0 | 65 mph | 1.6 mi | 10 yd | 0 / 0 | 21:40 UTC | NWS Northern Indiana |
| EF0 | 80 mph | 1.6 mi | 30 yd | 0 / 0 | 22:30–22:33 UTC | NWS Louisville |
| EF0 | – | 0.8 mi | – | 0 / 0 | 14:03–14:06 UTC | NWS Green Bay |
| EF0 | 70 mph | 0.1 mi | 50 yd | 0 / 0 | 19:19–19:20 UTC | NWS Northern Indiana |
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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