A period of high sustained winds developed near Bordeaux in southeast Wyoming as a result of a tight surface pressure gradient.
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The episode as NWS CYS wrote it up.
A period of high sustained winds developed near Bordeaux in southeast Wyoming as a result of a tight surface pressure gradient.
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 Cheyenne, WY wrote its last area forecast discussion before the first event at Feb 9, 9:51 PM MST, 3 hours 9 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CHEYENNE WY 951 PM MST TUE FEB 9 2016 .SHORT TERM...(THIS EVENING THROUGH THURSDAY NIGHT) ISSUED AT 340 PM MST TUE FEB 9 2016 IT IS ANOTHER BREEZY AFTERNOON ACROSS SOUTHEAST WYOMING WITH GUSTS TO 30-40 MPH. WITH THE UPPER RIDGE CENTER OVER NEVADA...NORTHWESTERLY FLOW ALOFT IS OCCURRING ACROSS THE CWA. THIS PATTERN IS NOT EXPECTED TO CHANGE MUCH THROUGH THURS. THE MODELS DO SHOW PRESSURE FALLS OCCURRING OVER WESTERN SOUTH DAKOTA BY 06-12Z TONIGHT. THE LLVL GRADIENT ALSO INCREASES TO 50-60 METERS...THUS WINDS WILL LIKELY PICK UP IN THE WIND PRONE AREAS AFTER MIDNIGHT. WITH MARGINAL GRADIENTS AND A LACK OF A STABLE LAYER ALOFT...DO NOT BELIEVE THAT HIGH WINDS WILL BE COMMON. HOWEVER DID INCLUDE GUSTS TO 55 MPH IN THE HWO FOR THE WIND PRONE AREAS. THE GRADIENT BEGINS TO DECREASE BY MIDDAY WED AND WINDS WILL LIKELY BEGIN TO COME DOWN SOME AT THAT POINT. WINDS SHOULD BE WEAKER ON THURS AS THE STRONGEST 700 MB FLOW SHIFTS EASTWARD INTO SOUTH DAKOTA/NEBRASKA. TEMPS WILL BE QUITE MILD FOR FEB WITH HIGHS IN THE LOW-TO-MID 50S. .LONG TERM...(FRIDAY THROUGH MONDAY) ISSUED AT 340 PM MST TUE FEB 9 2016 BROAD UPPER-LEVEL RIDGING WILL REMAIN IN PLACE ON FRIDAY AS A FAST- MOVING SHORTWAVE TRACKS ACROSS THE PACIFIC NORTHWEST. A FAIRLY MILD AND DRY DAY IS EXPECTED WITH LARGE SCALE SUBSIDENCE AND H7 TEMPS IN THE 0 TO +3 DEG C RANGE. THE GFS AND ECMWF REMAIN IN POOR AGREEMENT WITH THE EVOLUTION OF THE AFOREMENTIONED WAVE...BUT BOTH MODELS ARE SHOWING THIS SYSTEM MOVING ALONG THE WY/MT BORDER SOMETIME LATE SAT NIGHT OR SUN MORNING. THE GFS SHOWS H75 FLOW INCREASING TO 45 TO 55 KTS OVER THE WIND CORRIDORS AS LOW-LEVEL GRADIENTS STRENGTHEN. SOME POTENTIAL FOR A MARGINAL HIGH WIND EPISODE FOR ARL/BRX AND POSSIBLY THE SOUTH LARAMIE RANGE OVERNIGHT SAT NIGHT. THE MODELS CONTINUE TO SHOW THE BEST FORCING GOING TO THE NORTH...BUT SOME SHOWER ACTIVITY IS POSSIBLE OVER CONVERSE/NIOBRARA COUNTIES THIS WEEKEND. UPPER-LVL RIDGING RETURNS FOR NEXT WEEK WITH VERY WARM/DRY WEATHER CONDITIONS LIKELY. NO BIG WEATHER IMPACTS IN THE FORESEEABLE FUTURE. && .AVIATION...(FOR THE 06Z TAFS THROUGH 06Z WEDNESDAY NIGHT) ISSUED AT 949 PM MST TUE FEB 9 2016 VFR CONDITIONS EXPECTED WITH HIGH PRESSURE REMAINING ACROSS SOUTHWESTERN WYOMING. GUSTY WINDS POSSIBLE LATER THIS MORNING FOR OUR SOUTHEAST WYOMING AIRPORTS THAT WILL SPREAD OUT INTO THE NEBRASKA PANHANDLE DURING THE DAY WEDNESDAY. && .FIRE WEATHER... ISSUED AT 340 PM MST TUE FEB 9 2016 NO FIRE WEATHER CONCERNS ARE EXPECTED IN THE NEAR TERM DUE TO THE CURRENT SNOWPACK AND HIGH RELATIVE HUMIDITIES FORECAST THROUGH THE WEEK. BREEZY WINDS WILL PREVAIL FOR MUCH OF THE REGION AND TEMPERATURES WILL WARM WELL INTO THE 50S BY MIDWEEK ACROSS THE PLAINS. MINIMUM HUMIDITIES WILL REMAIN ABOVE 30 PERCENT. && .CYS WATCHES/WARNINGS/ADVISORIES... WY...NONE. NE...NONE. && SHORT TERM...ZF LONG TERM...CLH AVIATION...GCC FIRE WEATHER...ZF
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHEYENNE WY 108 PM MST TUE FEB 9 2016 NEZ002-003-019>021-054-055-095-096-WYZ101>105-107>109-111>115-118- 119-102015- DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE- NORTH SIOUX-SOUTH SIOUX-CONVERSE COUNTY LOWER ELEVATIONS- NIOBRARA COUNTY-NORTH LARAMIE RANGE- FERRIS/SEMINOE/SHIRLEY MOUNTAINS-SHIRLEY BASIN-EAST PLATTE COUNTY- GOSHEN COUNTY-CENTRAL CARBON COUNTY-SOUTHWEST CARBON COUNTY- SIERRA MADRE RANGE-UPPER NORTH PLATTE RIVER BASIN-SNOWY RANGE- LARAMIE VALLEY-CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY- 108 PM MST TUE FEB 9 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN NEBRASKA...EAST CENTRAL WYOMING...SOUTH CENTRAL WYOMING AND SOUTHEAST WYOMING. .DAY ONE...THIS AFTERNOON AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. WYZ106-110-116-117-102015- CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- NORTH SNOWY RANGE FOOTHILLS-SOUTH LARAMIE RANGE- SOUTH LARAMIE RANGE FOOTHILLS- 108 PM MST TUE FEB 9 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST CENTRAL WYOMING...SOUTH CENTRAL WYOMING AND SOUTHEAST WYOMING. .DAY ONE...THIS AFTERNOON AND TONIGHT STRONG WINDS WILL DEVELOP BY LATE TONIGHT OVER THE WIND PRONE AREAS. WEST TO SOUTHWEST WINDS WILL GUST TO 50-55 MPH. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY STRONG WINDS WILL CONTINUE TO BE POSSIBLE THROUGH WEDNESDAY MORNING ACROSS THE WIND PRONE AREAS. OTHERWISE...THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 1154 PM MST TUE FEB 9 2016 WYZ106-100900- CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- INCLUDING THE CITY OF...BORDEAUX 1154 PM MST TUE FEB 9 2016 SOUTHWEST WINDS SUSTAINED AT 30 TO 40 MPH WITH GUSTS 45 TO 55 MPH ARE EXPECTED TONIGHT IN SOUTHWEST PLATTE COUNTY. THIS INCLUDES THE INTERSTATE 25 CORRIDOR BETWEEN CHUGWATER AND WHEATLAND...AND THE BORDEAUX INTERCHANGE. LIGHT TRAILER TRAFFIC MAY WANT TO CONSIDER ALTERNATE ROUTES OR DELAY TRAVEL DUE TO EXPECTED WIND SPEEDS ABOVE 50 MPH. WINDS SHOULD DIMINISH THROUGH THE LATE MORNING.
The national radar mosaic for the moment the first event began.
1 high wind. Local standard time, as filed.
The WYDOT sensor at Bordeaux measured sustained winds of 40 mph or higher, with a peak gust of 58 mph at 10/0545 MST.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wyoming in 2016Every state in 2016This day in weather historyWarnings in Wyoming, February 2016
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: 635833.