High winds blew across wind prone areas of southeast Wyoming.
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.
High winds blew across wind prone areas of southeast Wyoming.
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 Jan 10, 9:39 AM MST, 32 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CHEYENNE WY 939 AM MST SAT JAN 10 2009 .UPDATE...WINDS AT ARLINGTON BETWEEN KLAR AND KRWL HAVE BEEN VERIFYING HIGH WIND CRITERIA SINCE WEE HOURS AND NOW THE AREA BETWEEN WHEATLAND AND CHUGWATER IS ALSO. SO...HAVE ISSUED A HIGH WIND WARNING UNTIL 00Z FOR THOSE AREAS AS WELL AS THE I-80 SUMMIT IN THE SOUTHERN LARAMIE RANGE. JLH && .PREV DISCUSSION... /ISSUED 323 AM MST SAT JAN 10 2009/ SHORT TERM...TODAY THROUGH SUNDAY NIGHT... NORTHWEST FLOW ALOFT WILL CONTINUE OVER THE CWA DURING THIS PART OF THE FORECAST AND STRENGTHENS SUNDAY AFTERNOON AND SUNDAY NIGHT. THE UPPER LEVEL RIDGE BUILDS OFF THE WEST COAST DURING THAT TIME AND A SHORTWAVE TROUGH MOVES ACROSS THE NORTHERN PLAINS. THE PATTERN WILL BE FAVORABLE FOR MORE STRONG WINDS...ESPECIALLY IN THE WYOMING PART OF THE CWA TODAY THROUGH SUNDAY NIGHT. THE LOW LEVEL HEIGHT DIFFERENCES BETWEEN KCAG AND KCPR WILL SUPPORT THE STRONG WINDS DURING THAT TIME...WITH THE LARGEST VALUES LATE TONIGHT THROUGH SUNDAY NIGHT. THE WINDS ALOFT INCREASE SUNDAY AND SUNDAY NIGHT AS THE 300 MB JET MOVES OVER THE AREA AND 700 MB WINDS INCREASE TO AROUND 50 KNOTS PER THE NAM AND GFS. ALREADY EARLY THIS MORNING THE WINDS ON THE LOWEST GATE OF THE MEDICINE BOW PROFILER HAVE INCREASED TO 40 KNOTS AND KARL HAS RESPONDED WITH WIND GUSTS OVER 50 MPH. WILL HOLD OFF ON THE ISSUANCE OF ANY WIND HIGHLIGHTS AT THIS TIME...ALTHOUGH IT WILL BE QUITE WINDY. THE MOST LIKELY TIME FOR WINDS REACHING HIGH WIND CRITERIA OVER A MORE WIDESPREAD AREA WILL LIKELY BE SUNDAY NIGHT AND AS EARLY AS DURING THE DAY SUNDAY OVER AND NEAR THE MOUNTAINS. CLOUDS WILL ALSO INCREASE OVER THE CWA TODAY AND PERSIST THROUGH 12Z MONDAY IN THE MOIST NORTHWEST FLOW ALOFT. MOST OF THE MOISTURE WILL BE ABOVE 700 MB...BUT SHOULD BE ENOUGH FOR OROGRAPHIC SNOW OVER THE HIGHER ELEVATIONS OF THE SNOWY RANGE THIS AFTERNOON THROUGH SUNDAY NIGHT. COMPARING FORECAST RAOBS FROM THE CWA...THE NAM IS MORE MOIST THAN THE OTHER MODELS AND THE GFS IS THE DRIEST AND THE SREF BEING A COMPROMISE. THE SHORTWAVE TROUGH MENTIONED EARLIER WILL BRING A SURFACE LOW INTO THE NORTHERN PLAINS SUNDAY NIGHT...WITH THE ASSOCIATED COLD FRONT PERHPAS MOVING INTO THE NORTHEAST PART OF THE CWA. ALL MODELS DEVELOP LIGHT QPF OVER MUCH OF THE CWA SUNDAY NIGHT WITH THE ADDED SURFACE FORCING AND JET DYNAMICS. LONG TERM...MONDAY THROUGH FRIDAY NW FLOW WILL CONTINUE ALOFT THROUGH THE EXTENDED PERIOD BETWEEN A HIGH AMPLITUDE UPPER RIDGE OFF THE WEST COAST AND A DEEP UPPER TROUGH OVER THE EASTERN HALF OF THE U.S. A DISTURBANCE WILL MOVE RAPIDLY ACROSS THE CWA DURING THE DAY MONDAY...WHICH WILL RESULT IN A CHANCE OF SNOW OVER THE NORTHERN ZONES. A COLD FRONT WILL ALSO MOVE ACROSS THE AREA DURING THE DAY. DRY CONDITIONS WILL OCCUR TUESDAY AS A SURFACE LEE TROUGH SETS UP. A SLIGHT CHANCE OF SNOW CAN BE EXPECTED ONCE AGAIN TUES NIGHT AND WED MORNING ACROSS THE NORTHERN ZONES ONCE AGAIN...AS A WEAK DISTURBANCE MOVES ACROSS THIS AREA. DRY CONDITIONS WILL PREVAIL FOR THE REST OF THE EXTENDED PERIOD. THE UPPER RIDGE WILL BEGIN TO MOVE INLAND ALONG THE WEST COAST ON THURS AND FRIDAY. HIGH TEMPERATURES WILL BE AROUND NORMAL ON MON...AROUND 5 DEGREES ABOVE NORMAL FOR TUES THROUGH THUR...AND 7 TO 10 DEGREES ABOVE NORMAL ON FRI. AVIATION...WINDS AND ASSOCIATED TURBULENCE WILL BE THE MAIN WEATHER FACTOR THROUGH SUNDAY NIGHT OVER THE CWA. WIND GUSTS OVER AND NEAR THE SNOWY AND LARAMIE RANGES WILL BE AS HIGH AS 45 KNOTS TODAY AND TONIGHT. EVEN STRONGER WINDS CAN BE EXPECTED FOR SUNDAY AND SUNDAY NIGHT OVER THAT AREA. MID LEVEL CLOUDS WILL SPREAD OVER THE CWA THIS AFTERNOON AND THEN PERSIST THROUGH SUNDAY NIGHT. CONDITIONS WILL LIKELY REMAIN VFR...BUT LOCAL MVFR CEILINGS AND VISIBILITIES IN SNOW ARE POSSIBLE OVER THE CWA SUNDAY NIGHT. THE HIGHER ELEVATIONS OF THE SNOWY RANGE WILL ALSO BE OBSCURED STARTING THIS AFTERNOON. && .CYS WATCHES/WARNINGS/ADVISORIES... WY...HIGH WIND WARNING UNTIL 5 PM SATURDAY FOR WYZ062-WYZ066-WYZ067. NE...NONE. && SHORT TERM/AVIATION...WEILAND LONG TERM...KMD
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHEYENNE WY 955 AM MST SAT JAN 10 2009 NEZ001>003-019>021-054-055-WYZ059>061-064-065-068>070-111215- SIOUX-DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL- CHEYENNE-CONVERSE-NIOBRARA-SOUTHWEST CARBON-NORTH LARAMIE RANGE- LARAMIE VALLEY-GOSHEN-CHEYENNE FOOTHILLS-PINE BLUFFS- 955 AM MST SAT JAN 10 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN NEBRASKA PANHANDLE AND PART OF SOUTHEAST WYOMING. .DAY ONE...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY IT WILL BE WINDY AND COLDER LATE SUNDAY NIGHT INTO MONDAY AFTERNOON WITH SCATTERED AREAS OF LIGHT 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 WYZ063-111215- SNOWY RANGE- 955 AM MST SAT JAN 10 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE MOUNTAINS OF SOUTH CENTRAL WYOMING. .DAY ONE...TODAY AND TONIGHT IT WILL BE WINDY WITH WEST WINDS 25 TO 35 MPH GUSTING TO 55 MPH AT TIMES. THE STRONG WINDS WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW. THERE WILL ALSO BE A FEW LIGHT SNOW SHOWERS .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY IT WILL STAY WINDY SUNDAY AND MONDAY. SCATTERED AREAS OF LIGHT SNOW ON SUNDAY WILL BECOME MORE WIDESPREAD MONDAY BEFORE DECREASING ON TUESDAY. .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 WYZ062-066-067-111215- NORTH CARBON-LARAMIE RANGE-PLATTE- 955 AM MST SAT JAN 10 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PART OF SOUTHEAST WYOMING. .DAY ONE...TODAY AND TONIGHT A HIGH WIND WARNING IS IN EFFECT UNTIL 5 PM THIS AFTERNOON FOR WEST WINDS OF 30 TO 45 MPH WITH GUSTS OVER 60 MPH. IT WILL STILL BE WINDY TONIGHT ALTHOUGH SPEEDS WILL DECREASE SLIGHTLY. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY IT WILL ALSO BE WINDY SUNDAY AND SUNDAY NIGHT. SCATTERED AREAS OF LIGHT SNOW AND COLDER TEMPERATURES WILL OCCUR ON MONDAY. .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
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 513 AM MST SAT JAN 10 2009 WYZ062-063-101900- NORTH CARBON-SNOWY RANGE- INCLUDING THE CITIES OF...HANNA...MEDICINE BOW...CENTENNIAL 513 AM MST SAT JAN 10 2009 ...WINDS REMAIN STRONG IN THE ARLINGTON AREA... AT 5 AM...WEST WINDS WERE SUSTAINED AT AROUND 40 MPH IN THE ARLINGTON AREA, WITH GUSTS BETWEEN 50 AND 55 MPH. THE STRONG WINDS WILL CONTINUE IN THE ARLINGTON AND MEDICINE BOW AREAS TODAY. THE STRONG WINDS WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW AND REDUCED VISIBILITIES. THE STRONG WINDS WILL MAKE TRAVEL DIFFICULT FOR THOSE WITH LIGHTWEIGHT OR HIGH PROFILE VEHICLES TODAY IN THE ARLINGTON AND MEDICINE BOW AREAS. THAT INCLUDES INTERSTATE 80 BETWEEN ARLINGTON AND WALCOTT JUNCTION. WEILAND
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
537 AM MST SAT JAN 10 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0500 AM NON-TSTM WND GST ARLINGTON 41.59N 106.21W
01/10/2009 M60 MPH CARBON WY DEPT OF HIGHWAYS
SUST 45 TO 50 MPH
&&PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
904 AM MST SAT JAN 10 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0835 AM NON-TSTM WND GST BORDEAUX 41.95N 104.95W
01/10/2009 M60 MPH PLATTE WY DEPT OF HIGHWAYS
SUST 40 TO 45 MPH
0555 AM HIGH SUST WINDS ARLINGTON 41.59N 106.21W
01/10/2009 M46 MPH CARBON WY DEPT OF HIGHWAYS
205 AM TO 555 AM VARIED 40 TO 49 MPH
&&3 high wind. Local standard time, as filed.
Several wind gusts from 60 to 65 mph were recorded along Interstate 80 near Arlington, WY.
Several wind gusts around 60 mph were recorded along Interstate 80 near Buford, Wy.
Several wind gusts around 60 mph were recorded along Interstate 25 at the Bordeaux interchange.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wyoming in 2009Every state in 2009This day in weather historyWarnings in Wyoming, January 2009
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: 141219, 141221, 141220.