Wyoming, 1998

Flash Flood and Hail in Wyoming, June 22, 1998

June 22, 1998 · NWS UNR · 5 events in 2 counties and zones

3 hail, 1 thunderstorm wind, 1 flash flood, as filed by the National Weather Service.

Where it happened

Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
5

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

The radar

The Rapid City radar (KUDX), 206 km away, was scanning. The volume nearest the first event began at 22:47 UTC.

Open the radar archive at this moment

Event by event

3 hail, 1 thunderstorm wind, 1 flash flood. Local standard time, as filed.

Hail, Campbell

When
June 22, 3:50 PM MST
Where
Campbell County, Weston
Measured
1 in hail
Reported by
LAW ENFORCEMENT
Coordinates
44.630, -105.330

Thunderstorm Wind, Campbell

When
June 22, 3:50 PM MST
Where
Campbell County, Weston
Measured
52 kt (60 mph)
Reported by
LAW ENFORCEMENT
Coordinates
44.630, -105.330

Hail, Campbell

When
June 22, 3:55 PM MST
Where
Campbell County, 10 mi NE of Weston
Measured
1.75 in hail
Reported by
LAW ENFORCEMENT
Coordinates
44.730, -105.180

Flash Flood, Campbell

When
June 22, 5:00 PM MST to 8:00 PM MST
Where
Campbell County, Weston
Reported by
LAW ENFORCEMENT
Coordinates
44.248, -105.548 (the zone’s center; the record gives no point)

General flooding was reported near Weston with stock ponds overflowing and roads being threatened.

Hail, Crook

When
June 22, 5:13 PM MST
Where
Crook County, 12 mi SW of Sundance
Measured
2.75 in hail
Reported by
LAW ENFORCEMENT
Coordinates
44.280, -104.550

What these are

Hail
Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
Thunderstorm Wind
Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
Flash Flood
Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Wyoming in 1998Every state in 1998This day in weather historyWarnings in Wyoming, June 1998

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5653046, 5653047, 5653048, 5653170, 5653049.