On the map: every storm report logged this day.
On the map
Storm reports for August 20, 1998
On August 20, 1998, 14 hail, 21 damaging-wind and 1 tornado reports were logged across 10 states.
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← Aug 19, 1998 All 1998 storm days · August 1998 Aug 21, 1998 →
On August 20, 1998, 14 hail, 21 damaging-wind and 1 tornado reports were logged across 10 states. The largest hail reported was 1.50″ (ping pong ball size) in Boone 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 | 5 | 9 | 0 | 1.50″ |
| MT | 5 | 1 | 0 | 1.00″ |
| TX | 0 | 6 | 0 | – |
| FL | 0 | 3 | 0 | – |
| KS | 2 | 0 | 0 | 0.75″ |
| CO | 1 | 0 | 0 | 0.75″ |
| OR | 1 | 0 | 0 | 0.75″ |
| UT | 0 | 0 | 1 | – |
| MS | 0 | 1 | 0 | – |
| LA | 0 | 1 | 0 | – |
Cities with hail reported within 5 miles
| City | Population | Largest report |
|---|---|---|
| Bend, OR | 106,926 | 0.75″ |
| Great Falls, MT | 60,013 | 0.75″ |
| Woodland Park, CO | 8,043 | 0.75″ |
Hail reports (14)
| Time (UTC) | Size | Location |
|---|---|---|
| 22:27 | 1.50″ | Boone County, NE |
| 21:50 | 1.00″ | Carter County, MT |
| 00:07 | 1.00″ | Mineral County, MT |
| 02:10 | 1.00″ | Hitchcock County, NE |
| 21:00 | 0.88″ | Custer County, NE |
| 22:15 | 0.75″ | Madison County, NE |
| 22:30 | 0.75″ | Teller County, CO |
| 22:30 | 0.75″ | Stanton County, NE |
| 22:45 | 0.75″ | Fallon County, MT |
| 23:15 | 0.75″ | Sheridan County, KS |
| 23:45 | 0.75″ | Thomas County, KS |
| 00:56 | 0.75″ | Deschutes County, OR |
| 01:30 | 0.75″ | Cascade County, MT |
| 03:10 | 0.75″ | Cascade County, MT |
Damage, injuries and deaths
National Weather Service offices recorded about $626,000 in property damage, $22,000 in crop damage and 6 injuries from hail, thunderstorm wind and tornadoes across the US on this storm day (36 events in 10 states). Injuries and deaths are those the events caused directly.
| County | Events | Injuries | Deaths | Property damage |
|---|---|---|---|---|
| Weber County, UT | 1 | 6 | 0 | $10,000 |
| Sherman County, NE | 2 | 0 | 0 | $350,000 |
| Merrick County, NE | 1 | 0 | 0 | $75,000 |
| Fayette County, TX | 1 | 0 | 0 | $30,000 |
| Harris County, TX | 1 | 0 | 0 | $30,000 |
| Wharton County, TX | 1 | 0 | 0 | $25,000 |
| Hillsborough County, FL | 2 | 0 | 0 | $20,000 |
| Pinellas County, FL | 1 | 0 | 0 | $20,000 |
| DeWitt County, TX | 1 | 0 | 0 | $20,000 |
| Lavaca County, TX | 1 | 0 | 0 | $20,000 |
| Jefferson Parish, LA | 1 | 0 | 0 | $15,000 |
| Fort Bend County, TX | 1 | 0 | 0 | $10,000 |
What the National Weather Service wrote
- Harris County, TX (near Countywide) · Thunderstorm wind · $30,000
“Numerous trees down across SW quarter of Harris County.” - Wharton County, TX (near Wharton) · Thunderstorm wind · $25,000
“Trees blown down (some on houses) in Wharton and in Hungerford.” - Pinellas County, FL (near Clearwater) · Thunderstorm wind · $20,000
“A local television station reported that thunderstorm winds downed several large trees and toppled a tree atop a vehicle in Clearwater.” - Hillsborough County, FL (near Tampa) · Thunderstorm wind · $15,000
“The Hillsborough County Office of Emergency Management reported that thunderstorm winds uprooted several trees in the Town n' Country area of Tampa.” - Jefferson Parish, LA (near Metairie) · Thunderstorm wind · $15,000
“Thunderstorm wind gusts damaged the roof of one residential home and downed power lines.” - Fort Bend County, TX (near Needville) · Thunderstorm wind · $10,000
“Trees blown down and damage to a mobile home.”
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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