Wyoming, 2001

Damaging Wind in Wyoming, August 28, 2001

August 28, 2001 · NWS RIW · 1 event in 1 county or zone

Shed blown over and destroyed resulting in power pole sheared apart.

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
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 happened

The episode as NWS RIW wrote it up.

Shed blown over and destroyed resulting in power pole sheared apart.

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 28, 1:27 PM MST, 3 hours 33 minutes earlier.

Area forecast discussion, Aug 28, 1:27 PM MST, 3 hours 33 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RIVERTON WY
227 PM MDT TUE AUG 28 2001

FAIRLY NICE WX DAY ACROSS MOST OF THE AREA COURTESY OF A SHORT WAVE
RIDGE. HOWEVER...ONE SURPRISE WAS AN ISOLATED T-STORM OVER SOUTHEAST
SWEEETWATER COUNTY WHICH WAS MOST LIKELY DUE TO LINGERING VORTICITY
FROM DEPARTING SHORT WAVE TO THE EAST IN COMBINATION WITH AFTERNOON
HEATING. WV LOOP SHOWS NEXT SHORT WAVE TROUGH DIGGING INTO
WASHINGTON EARLY THIS AFTERNOON. THIS TROUGH WILL TRY TO IMPACT OUR
CWFA WEDNESDAY...MAINLY IN THE NORTH AS A SURFACE COLD FRONT MOVES
INTO THE NORTHERN AND EASTERN CWFA WEDNESDAY MORNING. THE MODELS
BRING IN INCREASING AMOUNTS OF MOISTURE EAST OF THE DIVIDE DURING
THE AFTERNOON INTO THE NIGHT. HOWEVER...THE FLOW ALOFT REMAINS
WESTERLY ALOFT AND THE PRESSURE SURGE BEHIND THE COLD FRONT IS
RATHER WEAK. THAT BEING SAID...I WILL CONTINUE CURRENT FORECAST OF
SOME COOLING ALONG WITH ISOLATED PM SHOWERS AND T-STORMS NORTH. 700
MB TEMPS FALL BY 4 TO 5 DEGREES C CENTRAL AND AROUND 7 C NORTHEAST
WHILE CHANGING LITTLE WEST OF THE DIVIDE. WINDS ARE EXPECTED TO
SHIFT INTO THE NORTHEAST LATE TONIGHT IN KBYG...EARLY AM KCPR AND
MID TO LATE AM KRIW/KLND. BEYOND THAT WITH VERY WEAK UPSLOPE AND NO
DISTINCT VORT MAX I WILL NOT INCREASE POPS ATTM. WILL ADD A FEW
DEGREES TO MOST FWC/MAV/FAN GUIDANCE TEMPS. IN THE
EXTENDED...ECMWF/MRF IN AGREEMENT IN BUILDING ANOTHER RIDGE OVER THE
SOUTHWESTERN STATES. THIS RIDGE SHOULD CONTINUE TO KEEP PACIFIC
TROUGHS TO OUR NORTH RESULTING IN MORE DRY AND WARM CONDITIONS.

RIW...NONE

SULLIVAN

The radar

The Riverton/Lander radar (KRIW), 113 km away, was scanning. The volume nearest the first event began at 00:02 UTC.

Open the radar archive at this moment

Event by event

1 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Washakie

When
August 28, 5:00 PM MST
Where
Washakie County, 8 mi S of Worland
Reported by
NEWSPAPER
Coordinates
43.905, -107.683 (the zone’s center; the record gives no point)

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 2001Every state in 2001This day in weather historyWarnings in Wyoming, August 2001

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: 5263397.