Wyoming, 2002

Hail in Wyoming, August 8, 2002

August 8, 2002 · NWS RIW · 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

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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 Riverton, WY wrote its last area forecast discussion before the first event at Aug 8, 12:50 AM MST, 8 hours 25 minutes earlier.

Area forecast discussion, Aug 8, 12:50 AM MST, 8 hours 25 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RIVERTON WY
150 AM MDT THU AUG 8 2002

WV IMAGERY SHOWING SHORT WAVE MOVING NNE ACROSS WESTERN AND CENTRAL
WY. THIS WAVE HELPED MAINTAIN CONVECTION ACROSS EASTERN SWEETWATER
...NORTHWEST FREMONT AND WESTERN HOT SPRINGS COS DURING THE PAST
FEW HOURS. HOWEVER...LOOKS LIKE STORMS WEAKENING WITH ONLY A FEW
CELLS REMAINING IN WESTERN WASHAKIE CO. ALSO...MAIN TROF AXIS
LOCATED ACROSS WESTERN ID.

LOOKS LIKE UPPER TROF/LOW TO MOVE EAST ACROSS MT AND NORTHERN WY
THROUGH 09/12Z AND AND THEN INTO THE DAKOTAS BY 10/00Z. BEST DYNAMICS
AND MOISTURE WILL BE ACROSS NORTHERN WY TODAY AND TONIGHT...WITH
STRONGEST LIFT ACROSS MT. ALSO...MESOETA ADVERTISING GOOD
INSTABILITY(CAPES 1500 TO 2000 J/KG) ACROSS NATRONA AND NORTHEAST
FREMONT COS AT 08/18Z...THEN STRONG WESTERLY DRY PUNCH CANCELS
INSTABILITY BY 09/00Z. BY TONIGHT...STRONG 700 MB CAA TAKES PLACE
ACROSS CWFA WITH TEMPS FALLING INTO THE 0 TO -2 DEG C RANGE.
CURRENT FORECAST HAS POPS HANDLED WELL WITH HIGHEST POPS ACROSS
THE NORTH CWFA TODAY AND TONIGHT TO NIL POPS ACROSS THE SOUTHWEST.
WILL PROBABLY ADD ISOLD POPS ACROSS THE WIND RIVER BASIN TODAY DUE TO
THE INSTABILITY BY MID AFTERNOON. ALSO WINDY TODAY...ESPECIALLY FROM
RKS TO CPR DUE TO GOOD PRESSURE GRADIENT AND INCREASING 700 MB
FLOW. UPPER LEVEL NORTHWEST FLOW AND COLD FRONT TO CLEAR CWFA FOR
FRIDAY. WILL CONTINUE CHC POPS ACROSS THE NORTH FOR FRIDAY AS COLD
700 MB AND 500 MB TEMPS WILL MAKE IT LITTLE UNSTABLE.

NO CHANGES TO THE EXTENDED FORECAST AS UPPER LEVEL NORTHWEST FLOW
DEVELOPS BY SUNDAY WITH ANOTHER COLD FRONT TO MOVE ACROSS ON
MONDAY. LOOKS LIKE A BREAK FROM THE HOT SUMMER TEMPS THROUGH THE
MIDDLE OF NEXT WEEK.

.RIW...NONE

MC

The radar

The Billings radar (KBLX), 144 km away, was scanning. The volume nearest the first event began at 16:16 UTC.

Open the radar archive at this moment

Event by event

1 hail. Local standard time, as filed.

Hail, Park

When
August 8, 9:15 AM MST
Where
Park County, 7 mi NE of Cody
Measured
1.25 in hail
Reported by
GENERAL PUBLIC
Coordinates
44.583, -108.967

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: 5314226.