Wyoming, 2002

Hail in Wyoming, August 25, 2002

August 25, 2002 · NWS UNR · 1 event in 1 county or zone

1 hail, as filed by the National Weather Service.

Where it happened

Every event with a place to put it. 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

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
1

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.

What forecasters said that day

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 Aug 25, 2:20 PM MST, 2 hours 45 minutes earlier.

Area forecast discussion, Aug 25, 2:20 PM MST, 2 hours 45 minutes before
AREA FORECAST DISCUSSION FOR WESTERN SD AND NORTHEASTERN WY...UPDATED
NATIONAL WEATHER SERVICE RAPID CITY SD
320 PM MDT SUN AUG 25 2002

WATER VAPOR DEPICTS UPR LOW OVR MT...WITH WEAK RIDGING EXTENDING
NORTH THROUGH THE CNTRL ROCKIES. SFC TROF DVLPG IN THE LEE OF
ROCKIES...WITH HIGH PRESSURE OVR CNTRL PLAINS RESULTING IN RETURN
FLOW ACRS CWFA. STRONG CONVECTION STARTING TO FIRE OVR ERN MT AND
WRN ND.

WILL CONT TO SEE ISOLD PULSE TSTMS OVR BLKHLS INTO THIS EVE AS CAP
HAS ERODED. AMS HAS DRIED AND MID-LVL FLOW PICKED UP...THEREFORE
THREAT OF HEAVY RAINS AND SLOW MOVG TSTMS IS MINIMAL THIS EVE. TSTM
ACTIVITY WILL LIKELY CONT TO DVLP ACRS ERN MT AND WRN ND. 18Z
ETA/RUC BEGINNING TO PICK UP ON THIS ACTIVITY AND SPRDG IT E/SE
TNGT.  CORFIDI VECTORS SUGGEST IF THIS ACTIVITY EVOLVES INTO MCS IT
WILL TRAVEL ESE...AFFECTING NWRN ZONES. ADDITIONALLY...LO LVL JET
INCREASES LATER TONIGHT ACRS SRN ZONES WITH MUCAPE VALUES OF
1000-1500J/KG ALG WITH GOOD THETA-E ADVECTION. THEREFORE IF AN MCS
DVLPS IT WILL HAVE THE POTENTIAL TO DVLP SWD ACRS ERN HALF OF ZONES.
HOWEVER...IF MCS REMAINS TOO FAR NORTH...THERE WILL STILL BE DECENT
SHOT OF SEEING ISOLD CONVECTION ACRS SRN/ERN ZONES AS ENOUGH UVV
WILL BE IN PLACE.

UPR LVL TROFING REMAINS THE DOMINANT FEATURE FROM THE PAC NW TO NRN
ROCKIES THRU MID WEEK. IT WILL BE QUITE DIFFICULT TO TIME/POSITION
SHORT WAVES EMBEDDED IN UNSTABLE SW FLOW...THEREFORE CHC OF POP
WARRANTED THROUGH ENTIRE 1-3 DAY FCST. TEMPS WILL REMAIN FAIRLY
CONSISTENT DURING THIS PD AS WELL.

EXTENDED...CONTD TROFING WITH UNSETTLED WX PATTER EXPECTED THROUGH
FRI...WITH LONGER RANGE GUIDANCE SHOWING SOME HINT OF SHORT WAVE
RIDGING ON SAT. A MORE PROGRESSIVE TROF SWINGS THRU NRN PLAINS DAY 7
FOR RETURN TO UNSETTLED WX AND SLIGHT COOL DOWN.

.UNR...NONE
JOHNSON

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

1 hail. Local standard time, as filed.

Hail, Crook

When
August 25, 5:05 PM MST
Where
Crook County, 15 mi N of Hulett
Measured
0.75 in hail
Reported by
TRAINED SPOTTER
Coordinates
44.900, -104.600

What these are

Hail
Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.

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

The same day elsewhere

More

Every storm in Wyoming in 2002Every state in 2002This day in weather historyWarnings in Wyoming, August 2002

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: 5310804.