Thunderstorm Wind, Weston
- When
- September 14, 4:50 PM MST
- Where
- Weston County, 8.53 mi SSW of Clareton
- Measured
- 52 kt (60 mph) estimated gust
- Reported by
- Trained Spotter
- Coordinates
- 43.580, -104.740
The spotter estimated wind gusts at 60 mph.
Damaging Wind in Wyoming, September 14, 2016
A severe thunderstorm moved northeast across southern portions of Weston County, producing wind gusts to 60 mph south of Clareton.
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
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 UNR wrote it up.
A severe thunderstorm moved northeast across southern portions of Weston County, producing wind gusts to 60 mph south of Clareton.
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 Sep 14, 3:59 PM MST, 51 minutes earlier.
Area forecast discussion, Sep 14, 3:59 PM MST, 51 minutes before
Area Forecast Discussion For Western SD and Northeastern WY National Weather Service Rapid City SD 459 PM MDT WED SEP 14 2016 .SHORT TERM...(This Evening Through Thursday Night) Issued at 134 PM MDT Wed Sep 14 2016 19z surface analysis had lee trough from central MT into central WY with low developing along trough over north central WY. Tight gradient ahead of low with gusty southeast winds bringing low level moisture back to the CWA. Water vapour loop had upper low spinning over southern ID with speed max in southeast quadrant across UT into WY. This feature is the main concern this forecast. Tonight, upper low moves into northeast WY with slight deepening of surface low as it tracks into northwest SD. Boundary layer moisture supports about 1KJ/kg MUCAPE through this evening ahead of boundary with marginal 0-6km shear supportive of a few strong surface based storms late this afternoon and early this evening across the west. 40kt low level jet then develops this evening across NE into SD with well-defined arc of theta-e advection. Evening convection should translate northeast with synoptic forcing linking up with theta-e advection to produce a spoke of showers and storms spreading across the CWA with best coverage across the northeast half of the CWA where best jet dynamics noted. Have upped pops to account. Temperatures will be near guidance. Thursday, upper low spins into eastern ND with deformation zone-like shield of precipitation affecting northern half of the CWA, especially during the day. Surface low stacks with upper low and pushes a cold front through the CWA. 1-2KJ/kg MLCAPE develops ahead of cold front across south central SD with a few strong storms possible by afternoon given marginal shear profiles. Have upped pops to account in northwest SD. Drier and more stable air works in Thursday night allowing for decreasing pops. Temperatures will be near guidance. .LONG TERM...(Friday Through Wednesday) Issued at 134 PM MDT Wed Sep 14 2016 A weak upper level low will exit the area early on Friday with dry air pushing into the area. Temperatures will be mild, in the 60s to mid 70s. Beyond Friday the weather will be mild and dry as the forecast area is in-between systems with weak upper-level ridging. Temperatures will be near to above average. A cooler and more active pattern will be possible for the middle of next week. && .AVIATION...(For the 00Z TAFS Through 00Z Thursday Evening) Issued At 459 PM MDT Wed Sep 14 2016 Showers and thunderstorms will develop late this afternoon and this evening. These storms will cross ne WY and wrn SD early this evening, spreading east onto the SD plains later in the evening and overnight. More showers are possible through early Thu morning. MVFR conditions possible near precip. Otherwise VFR conditions expected. && .UNR Watches/Warnings/Advisories... SD...None. WY...None. && SHORT TERM...Helgeson LONG TERM...13 AVIATION...10
Hazardous weather outlook, Sep 14, 6:51 AM MST, 9 hours 59 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RAPID CITY SD 751 AM MDT WED SEP 14 2016 SDZ001-002-013-014-032-151300- HARDING-PERKINS-NORTHERN MEADE CO PLAINS-ZIEBACH-HAAKON- 751 AM MDT WED SEP 14 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN SOUTH DAKOTA. .DAY ONE...TODAY AND TONIGHT THERE IS A CHANCE FOR THUNDERSTORMS TONIGHT. SEVERE WEATHER IS NOT EXPECTED. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THERE IS A CHANCE FOR THUNDERSTORMS THURSDAY. SEVERE WEATHER IS NOT EXPECTED. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY. && STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER DETAILS OR UPDATES... OR CHECK OUR WEB SITE AT WEATHER.GOV/RAPIDCITY SDZ012-024>031-041>044-072>074-WYZ054>058-071-151300- BUTTE-NORTHERN BLACK HILLS-NORTHERN FOOT HILLS-RAPID CITY- SOUTHERN FOOT HILLS-CENTRAL BLACK HILLS-SOUTHERN BLACK HILLS- CUSTER CO PLAINS-PENNINGTON CO PLAINS-FALL RIVER-OGLALA LAKOTA- JACKSON-BENNETT-STURGIS/PIEDMONT FOOT HILLS- SOUTHERN MEADE CO PLAINS-HERMOSA FOOT HILLS-NORTHERN CAMPBELL- SOUTHERN CAMPBELL-WESTERN CROOK-WYOMING BLACK HILLS-WESTON- NORTHEASTERN CROOK- 751 AM MDT WED SEP 14 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF THE BLACK HILLS OF SOUTH DAKOTA...WESTERN SOUTH DAKOTA...NORTHEAST WYOMING...AND THE BLACK HILLS OF WYOMING. .DAY ONE...TODAY AND TONIGHT THERE IS A CHANCE FOR THUNDERSTORMS THIS AFTERNOON OVER NORTHEAST WYOMING. THESE STORMS WILL SPREAD ACROSS WESTERN SOUTH DAKOTA LATE THIS AFTERNOON AND EVENING. A FEW STRONGER STORM ARE POSSIBLE WITH HAIL AND GUSTY WINDS THE MAIN THREATS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THERE IS A CHANCE FOR THUNDERSTORMS THURSDAY. SEVERE WEATHER IS NOT EXPECTED. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY. && STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER DETAILS OR UPDATES... OR CHECK OUR WEB SITE AT WEATHER.GOV/RAPIDCITY SDZ046-047-049-151300- MELLETTE-TODD-TRIPP- 851 AM CDT WED SEP 14 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL SOUTH DAKOTA. .DAY ONE...TODAY AND TONIGHT THERE IS A CHANCE FOR THUNDERSTORMS TONIGHT. SEVERE WEATHER IS NOT EXPECTED. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THERE IS A CHANCE FOR THUNDERSTORMS THURSDAY. A FEW STRONGER STORMS ARE POSSIBLE WITH HAIL AND GUSTY WINDS AS THE MAIN THREAT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY. && STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER DETAILS OR UPDATES... OR CHECK OUR WEB SITE AT WEATHER.GOV/RAPIDCITY
In the hours before
Special weather statement, Sep 14, 4:34 PM MST, 16 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RAPID CITY SD
534 PM MDT WED SEP 14 2016
SDZ029-WYZ058-150015-
SOUTHERN BLACK HILLS SD-WESTON WY-
534 PM MDT WED SEP 14 2016
...SIGNIFICANT WEATHER ADVISORY FOR WEST CENTRAL CUSTER AND SOUTHERN
WESTON COUNTIES UNTIL 615 PM MDT...
AT 533 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM
NEAR MORRISEY...OR 30 MILES SOUTHWEST OF NEWCASTLE...MOVING
NORTHEAST AT 35 MPH.
NICKEL SIZE HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH
THIS STORM.
LOCATIONS IMPACTED INCLUDE...
NEWCASTLE...CLARETON AND MORRISEY.
LAT...LON 4350 10489 4387 10485 4389 10421 4380 10405
4350 10405
TIME...MOT...LOC 2333Z 209DEG 31KT 4349 10452
RICHARDSThe radar
The Rapid City radar (KUDX), 165 km away, was scanning. The volume nearest the first event began at 23:51 UTC.
Event by event
1 thunderstorm wind. Local standard time, as filed.
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
- Flash Flooding and Flood in Missouri, September 14 to 18, 2016
- Tornadoes and Flash Flood in New Mexico, September 14 to 15, 2016
- Damaging Winds in New Jersey, September 14, 2016
- Hail in Colorado, September 14, 2016
- Hail in New Mexico, September 14, 2016
- Marine Thunderstorm Winds in North Atlantic Coastal Waters, September 14, 2016
- Hail and Damaging Wind in Colorado, September 14, 2016
- Flash Flooding in Texas, September 14, 2016
- Hail in Oklahoma, September 14, 2016
- Hail in Colorado, September 14, 2016
- Funnel Cloud in Missouri, September 14, 2016
- Damaging Wind in Connecticut, September 14, 2016
More
Every storm in Wyoming in 2016Every state in 2016This day in weather historyWarnings in Wyoming, September 2016
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: 656740.