Wyoming, 2002

Damaging Wind in Wyoming, July 17, 2002

July 17, 2002 · NWS BYZ · 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 Billings, MT wrote its last area forecast discussion before the first event at Jul 17, 7:57 PM MST, 3 hours 48 minutes earlier.

Area forecast discussion, Jul 17, 7:57 PM MST, 3 hours 48 minutes before
SOUTH CENTRAL AND SOUTHEAST MONTANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BILLINGS MT
857 PM MDT WED JUL 17 2002

.SHORT TERM...VALID FOR THU...FRI...SAT...

UPDATE TO ZFP ONLY...MOIST MONSOONAL FLOW CONTINUING TO BRING
MOISTURE INTO MONTANA FROM MEXICO. SMALL DISTURBANCES IN THIS FLOW
RESPONSIBLE FOR THIS EVENINGS CONVECTION. HAVE HAD REPORTS OF SEVERE
WIND GUSTS OVER BIG HORN COUNTY...BUT MAIN FEATURE WITH THESE STORMS HAS
BEEN HEAVY RAINFALL DUE TO HIGH AVAILABLE MOISTURE AND SLOW MOVEMENT.
TEMP FORECAST LOOKS GOOD WITH LOWS VERY CLOSE TO LAST NIGHTS VALUES...
HAVE UPDATED POPS FOR CURRENT CONVECTION AND TO LEAVE SLIGHT CHANCE POPS
INTO THE SOUTHWEST ZONES WHERE META SHOWING SOME LINGERING VORTICITY.
OTHERWISE SHOULD SEE MAJORITY OF THE CONVECTION COME TO AN END BY 3 AM.
CHAMBERS

.LONG TERM...VALID FOR SUN...MON...TUE...WED...
FRIDAY NIGHT AND SATURDAY...SHORTWAVE TROUGH PUSHES THROUGH MONTANA
FRIDAY NIGHT WITH ASSOCIATED COOL FRONT AT SURFACE. WITH TRAJECTORY OF
ENERGY BEST SHOT FOR THUNDER APPEARS TO BE IN THE WEST. SATURDAY COOL
FRONT PUSHES INTO DAKOTAS BUT AVN DEVELOPING DECENT INSTABILITY OUT EAST
IN THE AFTERNOON AND EVENING. WILL TWEAK POPS FOR BOTH PERIODS
ACCORDINGLY.
WEST TO NORTHWEST UPPER FLOW DEVELOPS THROUGH THE
EXTENDED PERIOD. SOME DIFFERENCES ON AMPLITUDE AND POSITION OF UPPER
RIDGE OVER THE WEST. MRF MORE AMPLIFIED WITH RIDGE THUS PUTS MONTANA IN
MORE NORTHWEST UPPER FLOW...WHILE UKMET AND ECMWF KEEPING FLOW MORE
ZONAL. IN EITHER CASE TEMPS SHOULD BE NEAR SEASONAL AVERAGES AS HOT
DESERT AIRMASS IS CONFINED TO THE SOUTHWEST UNITED STATES. SHORTWAVE
ENERGY LOOKS TO STAY MAINLY TO THE NORTH OF THE AREA. AVN RUN SHOWING
COOL FRONT PASSAGE BOTH LATE SUNDAY AND TUESDAY...BUT FOR NOW WILL
CONTINUE WITH DRY FORECAST AS LITTLE UPPER LEVEL SUPPORT EVIDENT. JZ

    THU     FRI     SAT     SUN     MON     TUE     WED
-----------------------------------------------------------
BIL 065/092 068/096 064/087 063/088 062/087 060/087 061/085
    33/T    34/T    43/T    30/B    00/B    00/B    00/B
LVM 057/094 057/091 056/085 056/085 054/086 053/085 054/085
    33/T    34/T    42/T    20/B    00/B    00/B    00/B
HDN 061/094 064/098 065/087 064/089 061/089 059/088 062/086
    63/T    33/T    33/T    30/B    00/B    00/B    00/B
MLS 068/096 071/099 066/088 066/088 065/088 062/087 064/085
    42/T    23/T    33/T    30/B    00/B    00/B    00/B
4BQ 066/096 069/098 065/088 065/089 063/089 061/087 062/086
    43/T    33/T    33/T    30/B    00/B    00/B    00/B
BHK 064/092 067/097 064/085 065/086 063/087 059/085 060/083
    22/T    23/T    33/T    30/B    00/B    00/B    00/B
SHR 064/093 067/096 059/087 060/088 058/088 059/087 059/087
    33/T    33/T    33/T    30/B    00/B    00/B    00/B

.BYZ...
MT...NONE.
WY...NONE.

In the hours before

Local storm report, Jul 17, 9:42 PM MST, 2 hours 3 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BILLINGS, MT
1042 PM MDT WED JUL 17 2002

TIME(MDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0810 PM    ST. XAVIER                MT   60-70 MPH MPH WIND GUST
07/17/02   BIG HORN

0830 PM    CROW AGENCY               MT   65 MPH WIND GUST
07/17/02   BIG HORN

0842 PM    2 SW HARDIN               MT   FUNNEL CLOUD
07/17/02   BIG HORN                       PUBLIC REPORTED POSSIBLE
                                          FUNNEL CLOUD

TC
Local storm report, Jul 17, 9:43 PM MST, 2 hours 2 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BILLINGS, MT
1043 PM MDT WED JUL 17 2002

TIME(MDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0810 PM    ST. XAVIER                MT   60-70 MPH MPH WIND GUST
07/17/02   BIG HORN

0830 PM    CROW AGENCY               MT   65 MPH WIND GUST
07/17/02   BIG HORN

0842 PM    2 SW HARDIN               MT   FUNNEL CLOUD
07/17/02   BIG HORN                       PUBLIC REPORTED POSSIBLE
                                          FUNNEL CLOUD

TC

The radar

The Billings radar (KBLX), 222 km away, was scanning. The volume nearest the first event began at 06:43 UTC.

Open the radar archive at this moment

Event by event

1 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Sheridan

When
July 17, 11:45 PM MST
Where
Sheridan County, Leiter
Measured
60 kt (69 mph)
Reported by
TRAINED SPOTTER
Coordinates
44.717, -106.267

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: 5304165.