A large surface pressure gradient produced strong westerly winds in the Elk Mountain, Arlington and Bordeaux areas.
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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.
The episode as NWS CYS wrote it up.
A large surface pressure gradient produced strong westerly winds in the Elk Mountain, Arlington and Bordeaux areas.
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 4, 10:36 AM MST, 10 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CHEYENNE WY 1036 AM MST MON FEB 4 2013 .UPDATE... ONLY MINOR UPDATES TO THE GRIDS LATE THIS MORNING...MAINLY TWEAKING HIGH TEMPERATURES FOR THE SOUTHERN PANHANDLE AND PARTS OF SOUTHEAST WYOMING. GUSTY WEST TO SOUTHWEST WINDS OF 45 TO 55 MPH WILL PERSIST THROUGH EARLY AFTERNOON FOR THE INTERSTATE 80 WIND CORRIDORS...THEN SLOWLY DIMINISH. && .PREV DISCUSSION... /ISSUED 300 AM MST MON FEB 4 2013/ SHORT TERM...TONIGHT THROUGH WEDNESDAY NIGHT... BENIGN WEATHER EXPECTED OVER THE CWA DURING THE PERIOD WITH NORTHWESTERLY TO WESTERLY FLOW ALOFT AND A DRY AIR MASS. WIND-PRONE AREAS WILL HAVE PERIODS OF WINDY CONDITIONS MAINLY TODAY BUT HIGH WINDS NOT ANTICIPATED. VARYING AMOUNTS OF MAINLY HIGH CLOUDS WILL ADVECT SE ACROSS THE CWA TODAY AND TONIGHT THEN SHOULD DECREASE SOME TUESDAY AS A SOMEWHAT FLAT UPPER RIDGE PASSES ACROSS. ONLY OTHER WEATHER FEATURE OF NOTE WILL BE A SHORTWAVE PASSING NORTH OF THE CWA EARLY WEDS. THIS FEATURE WILL PUSH A COLD FRONT SOUTH ACROSS THE CWA DURING THE DAY WEDS BRINGING COLDER TEMPERATURES FOR WEDS NIGHT. LONG TERM...THURSDAY THROUGH SUNDAY... AFTER A LONG PERIOD OF DRY WEATHER...EXPECTING CHANGES FOR THE UPCOMING WEEKEND. THURSDAY WILL BE A DRY DAY AS AN UPPER LEVEL RIDGE SHIFTS ACROSS THE AREA. SHOULD SEE LOTS OF SUNSHINE THURSDAY WITH A VERY DRY ATMOSPHERE THROUGH THE VERTICAL PROFILE. THIS SHOULD ALLOW FOR TEMPERATURES TO WARM INTO THE 50S EAST OF THE LARAMIE RANGE AND INTO THE NEBRASKA PANHANDLE. MODEL TRENDS ARE SLOWER WITH THE ADVANCEMENT OF AN UPPER LEVEL LOW LATE THIS WEEK INTO THE WEEKEND. BASED ON LATEST GFS AND EC FRIDAY SHOULD REMAIN DRY WITH INCREASING CLOUD COVER. COULD SEE SOME SNOW INTO THE SIERRA MADRE AND SNOWY RANGES FRIDAY BUT THE MAIN CHANCES LOOK TO HOLD OFF UNTIL FRIDAY NIGHT. LOWERED POPS ACROSS THE PLAINS FRIDAY NIGHT GIVEN THE SLOWER MODEL SOLUTIONS. LOTS OF UNCERTAINLY INTO SATURDAY AND SUNDAY WITH CHANCES OF PRECIPITATION. LATEST MODEL RUNS ARE NOT ONLY SLOWER BUT SLIGHTLY FARTHER SOUTH. THE SOUTHERN SOLUTIONS WOULD KEEP ANY CHANCES FOR SIGNIFICANT SNOW SOUTH OF THE FORECAST AREA. ACTUALLY THE 00Z GFS PRODUCES VERY LITTLE PRECIPITATION ANYWHERE ACROSS THE ROCKIES AS IT SHOWS THE NORTHERN STREAM BECOMING THE DOMINATE PLAYER WITH THE UPPER LOW OVER THE SOUTHWEST CONUS BEING VERY DISORGANIZED. AVIATION...12Z TAF ISSUANCE... VFR ACROSS SOUTHEAST WYOMING AND THE NEBRASKA PANHANDLE THROUGH THE TAF PERIOD. WILL SEE INCREASING MID AND HIGH CLOUDS TODAY THEN CLEARING TONIGHT. STRONG WESTERLY WINDS WILL CONTINUE INTO TONIGHT ACROSS WIND PRONE AREAS SUCH AT NEAR ARLINGTON WITH OCCASIONAL GUSTS OF 45 TO 55 MPH. ELSEWHERE BREEZY TO WINDY CONDITIONS THIS AFTERNOON WITH GUSTS AROUND 30 MPH OVER MUCH OF SOUTHEAST WYOMING WITH GUSTS AROUND 20 MPH INTO THE NEBRASKA PANHANDLE. FIRE WEATHER... NO CONCERNS ANTICIPATED THROUGH MIDWEEK WITH DRY AND MILD WEATHER EXPECTED. PERIODS OF BREEZY TO WINDY CONDITIONS WILL OCCUR AROUND THE MOUNTAINS THROUGH TUESDAY BUT OTHERWISE NON-CRITICAL CONDITIONS EXPECTED. && .CYS WATCHES/WARNINGS/ADVISORIES... WY...NONE. NE...NONE. && SHORT TERM/FIRE WEATHER...JAMSKI LONG TERM/AVIATION...RUBIN PREVIOUS DISCUSSION...LIEBL/RE
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHEYENNE WY 955 AM MST MON FEB 4 2013 NEZ002-003-019>021-054-055-095-096-WYZ101>105-107>109-111>115-118- 119-051300- 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- 955 AM MST MON FEB 4 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN NEBRASKA PANHANDLE...EAST CENTRAL WYOMING...SOUTH CENTRAL WYOMING AND SOUTHEAST WYOMING. .DAY ONE...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY A LOW PRESSURE SYSTEM WILL MOVE ACROSS THE AREA THIS WEEKEND BRINGING COLDER TEMPERATURES AND SOME SNOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT. && THIS PRODUCT...ALONG WITH OTHER WEATHER...HYDROLOGIC...AND CLIMATE INFORMATION IS AVAILABLE ON THE WEB AT... HTTP://WEATHER.GOV/CHEYENNE WYZ106-110-116-117-051300- CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- NORTH SNOWY RANGE FOOTHILLS-SOUTH LARAMIE RANGE- SOUTH LARAMIE RANGE FOOTHILLS- 955 AM MST MON FEB 4 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL WYOMING... SOUTH CENTRAL WYOMING AND SOUTHEAST WYOMING. .DAY ONE...TODAY AND TONIGHT GUSTY WEST TO SOUTHWEST WINDS WILL CONTINUE TODAY FOR THE WIND PRONE AREAS OF ARLINGTON...BORDEAUX AND VEDAUWOO. GUSTS OF 45 TO 55 MPH WILL OCCUR MAINLY THIS MORNING. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY A LOW PRESSURE SYSTEM WILL MOVE ACROSS THE AREA THIS WEEKEND BRINGING COLDER TEMPERATURES AND SOME SNOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT. && THIS PRODUCT...ALONG WITH OTHER WEATHER...HYDROLOGIC...AND CLIMATE INFORMATION IS AVAILABLE ON THE WEB AT... HTTP://WEATHER.GOV/CHEYENNE JAMSKI
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 607 AM MST MON FEB 4 2013 WYZ110-041800- NORTH SNOWY RANGE FOOTHILLS- INCLUDING THE CITIES OF...ARLINGTON...ELK MOUNTAIN 607 AM MST MON FEB 4 2013 ...STRONG WINDS WILL CONTINUE BETWEEN LARAMIE AND RAWLINS THIS MORNING... SOUTHWEST WINDS WILL GUST TO BETWEEN 45 AND 55 MPH ALONG INTERSTATE 80 BETWEEN MILE MARKERS 265 AND 290 FOR THE REST OF THE MORNING AND THEN WILL DIMINISH DURING THE AFTERNOON. THE WINDS WILL BE SUATAINED BETWEEN 35 AND 40 MPH. THE WYOMING DEPARTMENT OF TRANSPORTATION ADVISES NO LIGHT TRAILER TRAFFIC DUE TO WIND SPEEDS ABOVE 50 MPH. THESE WINDS MAY CAUSE LOSS OF VEHICLE CONTROL OR A BLOW OVER TO HIGH PROFILE VEHICLES TRAVELING EMPTY OR WITH A LIGHT LOAD. DRIVERS OF SUCH VEHICLES ARE ADVISED TO DELAY TRAVEL. LIEBL
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 948 AM MST MON FEB 4 2013 WYZ116-117-041900- SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS- INCLUDING THE CITIES OF...VEDAUWOO...BUFORD...PUMPKIN VINE... HORSE CREEK...HARRIMAN...WHITAKER 948 AM MST MON FEB 4 2013 ...STRONG WINDS WILL CONTINUE BETWEEN CHEYENNE AND LARAMIE THIS MORNING... SUSTAINED WEST WINDS OF 25 TO 35 MPH WILL GUST AS HIGH AS 55 MPH ALONG INTERSTATE 80 BETWEEN CHEYENNE AND LARAMIE. THIS INCLUDES THE SUMMIT...BUFORD AND VEDAUWOO. THE WINDS WILL DIMINISH THIS AFTERNOON. THE WYOMING DEPARTMENT OF TRANSPORTATION ADVISES NO LIGHT TRAILER TRAFFIC DUE TO WIND SPEEDS ABOVE 50 MPH. THESE WINDS MAY CAUSE LOSS OF VEHICLE CONTROL OR A BLOW OVER TO HIGH PROFILE VEHICLES TRAVELING EMPTY OR WITH A LIGHT LOAD. DRIVERS OF SUCH VEHICLES ARE ADVISED TO DELAY TRAVEL. JAMSKI
The national radar mosaic for the moment the first event began.
9 high wind. Local standard time, as filed.
The WYDOT sensor at Arlington measured sustained winds of 40 mph or higher, with a peak gust of 68 mph at 04/1406 MST.
The WYDOT sensor at Foote Creek measured sustained winds of 40 mph or higher, with a peak gust of 61 mph at 04/1606 MST.
The WYDOT sensor at County Road 402 by Elk Mountain measured sustained winds of 40 mph or higher, with a peak gust of 62 mph at 04/1326 MST.
The WYDOT sensor at Arlington East measured sustained winds of 40 mph or higher, with a peak gust of 63 mph at 04/1631 MST.
The WYDOT sensor at Halleck Ridge measured sustained winds of 40 mph or higher.
The WYDOT sensor at Cooper Cove measured wind gusts of 60 mph.
The WYDOT sensor at Strouss Hill measured wind gusts of 58 mph.
The WYDOT sensor at Bordeaux measured sustained winds of 40 mph or higher, with a peak gust of 58 mph at 04/2110 MST.
The WYDOT sensor at Cooper Cove measured wind gusts of 60 mph.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wyoming in 2013Every state in 2013This day in weather historyWarnings in Wyoming, February 2013
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: 427634, 427638, 427637, 427633, 427639, 427635, 427640, 427632, 427636.