Thunderstorm Wind, Campbell
- When
- May 1, 1:07 AM MST
- Where
- Campbell County, Gillette Arpt
- Measured
- 60 kt (69 mph)
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 44.350, -105.533
An small line of thunderstorms moved along the Montana/Wyoming border shortly after midnight. The line of storms was associated with a potent upper level shortwave.
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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 episode as NWS UNR wrote it up.
An small line of thunderstorms moved along the Montana/Wyoming border shortly after midnight. The line of storms was associated with a potent upper level shortwave. Outflow from these storms produced a strong and persistent gust front across Campbell County.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Rapid City, SD wrote its last area forecast discussion before the first event at Apr 30, 8:10 PM MST, 4 hours 57 minutes earlier.
AREA FORECAST DISCUSSION FOR WESTERN SD AND NORTHEASTERN WY NATIONAL WEATHER SERVICE RAPID CITY SD 910 PM MDT MON APR 30 2001 CURRENT FCST ON TRACK. WL UPDATE FOR TIMING OF CLOUDS AND WL TWEEK WINDSa ABIT. .UNR...NONE.
The Rapid City radar (KUDX), 217 km away, was scanning. The volume nearest the first event began at 08:07 UTC.
2 thunderstorm wind. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wyoming in 2001Every state in 2001This day in weather historyWarnings in Wyoming, May 2001
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: 5246911, 5246910.