Wyoming, 2002

Damaging Wind in Wyoming, July 27, 2002

July 27, 2002 · NWS UNR · 1 event in 1 county or zone

1 thunderstorm wind, 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 Jul 27, 12:15 PM MST, 5 hours 55 minutes earlier.

Area forecast discussion, Jul 27, 12:15 PM MST, 5 hours 55 minutes before
AREA FORECAST DISCUSSION FOR WESTERN SD AND NORTHEASTERN WY
NATIONAL WEATHER SERVICE RAPID CITY SD
115 PM MDT SAT JUL 27 2002

THE MAIN WEATHER OF INTEREST IS THE RELATIVELY STRONG TROUGH THAT
WILL PASS THROUGH THE CWFA TONIGHT AND SUNDAY...BRINGING A DECENT
CHANCE OF PRECIPITATION TO MUCH OF THE AREA. THE MAIN PART OF THIS
WAVE WAS MOVING THROUGH ID EARLY THIS AFTERNOON...WITH THUNDERSTORMS
EVIDENT OVER CENTRAL MT. IN ADVANCE OF THIS FEATURE...NORTHWEST
WINDS HAVE BROUGHT SOME DRIER BOUNDARY-LAYER AIR INTO THE CWFA...
BUT SURFACE PRESSURE FALLS HAVE RECENTLY DEVELOPED IN WY...SO IT IS
EXPECTED THAT THE FLOW WILL BEGIN TO TURN MORE NORTH-NORTHEAST IN
THE LATE AFTERNOON/EARLY EVENING TIME-FRAME. THIS SHOULD ADVECT A
LITTLE MORE BOUNDARY-LAYER MOISTURE BACK INTO THE CWFA...SETTING THE
STAGE FOR SHOWERS AND THUNDERSTORMS OVERNIGHT. THE SHEAR WILL BE
MORE THAN SUFFICIENT FOR SUPERCELLS OVER THE NORTHERN CWFA...BUT DRY
LOW-LEVELS AND WEAK INSTABILITY MAY PREVENT SUSTAINED UPDRAFTS FROM
DEVELOPING. AT ANY RATE...THE COVERAGE OF SHOWERS AND THUNDERSTORMS
IS EXPECTED TO BE 40-60 PERCENT TONIGHT GIVEN THE STRONG UPPER-LEVEL
FORCING...LOW-LEVEL FRONTOGENESIS...AND INCREASING MOISTURE. THE
BEST CHANCE FOR PRECIPITATION WILL BE ACROSS THE NORTH.

THE TROUGH WILL FINISH MOVING THROUGH THE CWFA ON SUNDAY. A COLD
POCKET OF AIR AT 500 MB SHOULD RESULT IN ENOUGH INSTABILITY FOR A
FEW SHOWERS ACROSS THE CWFA...WITH A LITTLE BETTER CHANCE FARTHER
EAST CLOSER TO THE STRONG FORCING. A FEW SHOWERS MAY LINGER IN
SOUTH-CENTRAL SD SUNDAY EVENING...BUT THEN QUIET WEATHER WILL RETURN
SUNDAY NIGHT THROUGH MONDAY.

A WEAK UPPER-LEVEL WAVE AND SURFACE FRONT ARE ADVERTISED TO MOVE
ACROSS THE CWFA TUESDAY NIGHT AND WEDNESDAY MORNING...BUT AT THIS
TIME IT DOESNT APPEAR THAT THERE WILL BE ENOUGH LOW-LEVEL MOISTURE
TO MENTION ANY PRECIPITATION. THE NEXT CHANCE OF THUNDERSTORMS WILL
BE WEDNESDAY NIGHT AND THURSDAY AS A SERIES OF WAVES MOVE ACROSS THE
CWFA IN A ZONAL FLOW.

THE EXTENDED MODELS AGREE ON A FLAT RIDGE DEVELOPING OVER THE
CENTRAL UNITED STATES ON FRIDAY AND SATURDAY...WITH SOUTHWEST FLOW
OVER MOST OF THE CWFA. THIS PATTERN LOOKS CONDUCIVE TO SOME
THUNDERSTORMS OVER THE NORTH...BUT THE SOUTH IS EXPECTED TO BE
CAPPED.

.UNR...NONE

BUNKERS

The radar

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

Open the radar archive at this moment

Event by event

1 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Campbell

When
July 27, 6:10 PM MST
Where
Campbell County, Echeta
Measured
60 kt (69 mph)
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
44.433, -105.850

What these are

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.

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, July 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: 5304771.