A mountain wave briefly developed along the east slopes of the Wind River Mountains near Lander. South to southwest wind in excess of 50 mph was reported for about 30 minutes.
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The episode as NWS RIW wrote it up.
A mountain wave briefly developed along the east slopes of the Wind River Mountains near Lander. South to southwest wind in excess of 50 mph was reported for about 30 minutes. The strongest winds occurred in a swath from Lander north to around Milford. The ASOS at Hunt Field in Lander recorded a peak wind gust of 68 mph at 1625MST.
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 Riverton, WY wrote its last area forecast discussion before the first event at Nov 1, 1:13 PM MST, 3 hours 12 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE RIVERTON WY 213 PM MDT SAT NOV 1 2014 .SHORT TERM...TONIGHT THROUGH SUNDAY A PACIFIC TROUGH APPROACHING SOUTHWEST AND WEST WYOMING WILL BRING MOISTURE...INSTABILITY AND UPPER LEVEL DIVERGENCE OVER THE AREA TONIGHT AND SUNDAY. THE MAIN PART OF THE LOW WILL SKIRT THE WEST MOVING NORTH INTO WESTERN AND CENTRAL MONTANA WITH TIME...SPARING WESTERN AND CENTRAL WYOMING FROM THE HEAVIEST PRECIPITATION. STRONG WINDS WILL BE ENCOUNTERED OVER MUCH OF THE AREA TONIGHT. THE STRONGEST WINDS WILL BE SOUTH AND CENTRAL THROUGH 10 PM MDT THIS EVENING WHERE A HIGH WIND WARNING IS IN EFFECT FOR SWEETWATER...SOUTHERN FREMONT AND NATRONA COUNTIES. CLOUDS AND SHOWERS WILL BE WIDESPREAD OVER THE SOUTH AND WEST. SNOWFALL OF 3 TO 6 INCHES WITH LOCAL 9 INCHES CAN BE EXPECTED OVER THE WESTERN MOUNTAINS ABOVE 9000 FEET. ISOLATED THUNDERSTORMS WILL BE EMBEDDED IN THE SHOWERS OVER THE MOUNTAINS THROUGH THIS EVENING. TEMPERATURES WILL BE COOLING TONIGHT AND SUNDAY. .LONG TERM...SUNDAY NIGHT THROUGH SATURDAY A TRAILING TROUGH BEHIND THE LOW PRESSURE AREA WILL SWING ACROSS THE COUNTY WARNING AREA ON SUNDAY NIGHT AND COULD SPREAD SOME LIGHT PRECIPITATION TO AREAS EAST OF THE DIVIDE...ESPECIALLY NORTH OF OWL CREEK MOUNTAINS. AT THE SAME TIME...SOME ENERGY MOVING THROUGH COLORADO MAY THROW SOME PRECIPITATION BACK NORTHWARD INTO SOUTHERN PORTIONS OF SWEETWATER COUNTY. AT THIS POINT...AMOUNTS LOOK LIGHT WITH THE BEST UPPER LEVEL SUPPORT TO THE EAST. HOWEVER...THERE IS ONE WRINKLE WE HAVE TO KEEP AN EYE ON. THE EUROPEAN MODEL SHOW A DECENT BULLSEYE OF QPF ACROSS CENTRAL WYOMING LATE SUNDAY NIGHT...MORE THEN LIKELY SHOWING SOME OF THOSE ANNOYING SNOW BANDS THAT MAY DEVELOP. THE GFS HAS SOMETHING SIMILAR BUT FURTHER FURTHER EAST...MAINLY FROM CASPER TO DOUGLAS. MEANWHILE...THE NAM HAS NOTHING. FOR NOW...WE ADDED SOME SLIGHT CHANCE POPS FOR LATE SUNDAY NIGHT AND MONDAY MORNING TO COVER FOR THIS. AS ALWAYS WITH NORTHWEST FLOW...YOU HAVE TO BE AWARE. ALSO...PINPOINTING THE BANDS IS NEARLY IMPOSSIBLE THIS FAR OUT SO STAY TUNED. MOST OF THE PRECIPITATION SHOULD SHIFT OUT OF THE AREA DURING MONDAY AFTERNOON WITH MOST AREAS MAINLY DRY ON MONDAY NIGHT. MONDAY LOOKS TO BE THE COLDEST DAY OF THE PERIOD WITH ONGOING COLD ADVECTION NULLIFYING ANY HEATING FROM THE WEAK NOVEMBER SUN. THE NEXT COUPLE OF SHORTWAVES WILL THEN MOVE INTO WESTERN WYOMING ON TUESDAY AND AGAIN ON WEDNESDAY. THE GFS IS THE MOST BULLISH WITH THESE WITH THE EUROPEAN THE DRIEST. IT WILL BE ENOUGH WITH THE FAVORABLE OROGRAPHIC FLOW TO BRING A FEW SHOWERS BUT NOTHING MAJOR IS EXPECTED. MEANWHILE...EXPECT LITTLE TO NOTHING EAST OF THE DIVIDE WITH DOWNSLOPING FLOW DRYING UP MOST OF THE PRECIPITATION. A GUSTY BREEZE WILL DEVELOP BOTH OF THE DAYS ACROSS THE FAVORED AREAS FROM ROCK SPRINGS THROUGH CASPER BUT AT THIS TIME NOTHING UNUSUAL FOR NOVEMBER IN WYOMING. DOWNSLOPING FLOW WILL ALSO BRING WARMER TEMPERATURES TO THE AREA WITH HIGH TEMPERATURES BY WEDNESDAY ONCE AGAIN REACHING ABOVE NORMAL LEVELS. HIGH PRESSURE WILL THEN BRING DRY AND MILD WEATHER FOR ALL AREAS FOR THURSDAY. BY FRIDAY AND FRIDAY NIGHT ANOTHER SYSTEM LOOKS TO DROP ACROSS THE AREA. THE LATEST EUROPEAN HAS BACKED OFF ON PRECIPITATION A BIT WITH THE GFS MAINLY DRY WITH MOST OF THE ENERGY REMAINING TO THE NORTH AND EAST. FOR NOW...WE KEPT THINGS MAINLY DRY EXCEPT FOR THE MOUNTAINS SINCE THERE IS A LOT OF TIME TO WATCH THINGS UNFOLD. && .AVIATION.../00Z ISSUANCE/ WEST OF THE DIVIDE...KBPI/KJAC/KPNA/KRKS ROUTES THE AIRPORTS WILL HAVE PREVAILING VFR CONDITIONS THROUGH 00Z MONDAY. WITH STRONGER CONVECTIVE CELLS OVER THE AREA...BRIEF MVFR CEILINGS AND VISIBILITIES MAY BE ENCOUNTERED AT KJAC...KAFO...KBPI KEMM AND KPNA THROUGH 12Z SUNDAY. SOUTHWEST FLOW ALOFT WILL CONTINUE WITH SUBSTANTIAL MID AND UPPER LEVEL CLOUDS WITH AREAS OF MVFR TO IFR CEILINGS AND VISIBILITIES IN RAIN AND SNOW SHOWERS OVER THE WESTERN MOUNTAINS AND VALLEYS ABOVE 8000 FEET WITH MAINLY SNOW SHOWERS OVER NIGHT. ISOLATED EMBEDDED THUNDERSTORMS WILL BE POSSIBLE THROUGH 03Z. STRONG RIDGE TOP WINDS WILL BE ENCOUNTERED WITH AREAS OF LOW LEVEL WIND SHEAR. EAST OF THE DIVIDE...KCOD/KCPR/KLND/KRIW/KWRL ROUTES THE AIRPORTS WILL HAVE PREVAILING VFR CONDITIONS THROUGH 00Z MONDAY. SOUTHWEST FLOW ALOFT WITH MAINLY MID AND UPPER LEVEL CLOUDS WILL CONTINUE OVER THE AREA. AREAS OF MVFR CEILINGS AND VISIBILITIES IN RAIN AND SNOW SHOWERS...WITH ISOLATED THUNDERSTORMS THROUGH 03Z...WILL OCCUR ALONG AND EAST OF THE CONTINENTAL DIVIDE ABOVE 8000 FEET WITH MAINLY SNOW SHOWERS OVER NIGHT. OVER AND NEAR THE EAST SLOPES OF THE MOUNTAINS STRONG DOWNSLOPE WINDS WILL BLOW WITH AREAS OF LOW LEVEL WIND SHEAR. && .FIRE WEATHER... STRONG WINDS WILL BE ENCOUNTERED OVER MUCH OF THE AREA TONIGHT. THE STRONGEST WINDS WILL BE SOUTH AND CENTRAL THROUGH 10 PM MDT THIS EVENING WHERE A HIGH WIND WARNING IS IN EFFECT FOR SWEETWATER...SOUTHERN FREMONT AND NATRONA COUNTIES. CLOUDS AND SHOWERS WILL BE WIDESPREAD OVER THE SOUTH AND WEST. SNOWFALL OF 3 TO 6 INCHES WITH LOCAL 9 INCHES CAN BE EXPECTED OVER THE WESTERN MOUNTAINS ABOVE 9000 FEET. ISOLATED THUNDERSTORMS WILL BE EMBEDDED IN THE SHOWERS OVER THE MOUNTAINS THROUGH THIS EVENING. TEMPERATURES WILL BE COOLING WITH INCREASING RELATIVE HUMIDITY AND LOWERING MIXING HEIGHTS. && .RIW WATCHES/WARNINGS/ADVISORIES... HIGH WIND WARNING UNTIL 10 PM MDT THIS EVENING WYZ019-020-028>030. && SHORT TERM...C.BAKER LONG TERM...HATTINGS AVIATION...C.BAKER FIRE WEATHER...C.BAKER
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RIVERTON WY 828 AM MDT SAT NOV 1 2014 WYZ001>020-022>030-021428- ABSAROKA MOUNTAINS-BIGHORN MOUNTAINS SOUTHEAST- BIGHORN MOUNTAINS WEST-CASPER MOUNTAIN-CODY FOOTHILLS- EAST SWEETWATER COUNTY-FLAMING GORGE- GREEN MOUNTAINS AND RATTLESNAKE RANGE-JACKSON HOLE-LANDER FOOTHILLS- NATRONA COUNTY LOWER ELEVATIONS-NORTH BIG HORN BASIN- NORTHEAST JOHNSON COUNTY-OWL CREEK AND BRIDGER MOUNTAINS- ROCK SPRINGS AND GREEN RIVER-SALT RIVER AND WYOMING RANGES- SOUTH LINCOLN COUNTY-SOUTHEAST BIG HORN BASIN- SOUTHEAST JOHNSON COUNTY-SOUTHWEST BIG HORN BASIN-STAR VALLEY- TETON AND GROS VENTRE MOUNTAINS-UPPER GREEN RIVER BASIN- UPPER GREEN RIVER BASIN FOOTHILLS-UPPER WIND RIVER BASIN- WIND RIVER BASIN-WIND RIVER MOUNTAINS EAST-WIND RIVER MOUNTAINS WEST- YELLOWSTONE NATIONAL PARK- 828 AM MDT SAT NOV 1 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING. ...HIGH WINDS ARE EXPECTED THIS AFTERNOON AND EVENING ACROSS SWEETWATER...SOUTHERN FREMONT AND NATRONA COUNTIES... .DAY ONE...TODAY AND TONIGHT A STORM SYSTEM WILL MOVE INTO THE FAR WEST LATE TODAY AND THEN MOVE NORTHEAST ACROSS THE AREA LATE TONIGHT. WIDESPREAD SHOWERS AND ISOLATED THUNDERSTORMS WILL MOVE INTO THE WEST THIS AFTERNOON WITH A STRONG COLD FRONT. RAIN SHOWERS WILL TURN TO SNOW WITH RAPIDLY LOWERING SNOW LEVELS ACROSS THE WEST THIS EVENING. ACCUMULATING SNOW IS EXPECTED IN THE NORTHWEST MOUNTAINS TONIGHT...WITH TETON AND TOGWOTEE MOUNTAIN PASSES BECOMING SLICK. SOME LIGHTER ACCUMULATION WILL FALL IN THE WESTERN VALLEYS. IN ADDITION...A TIGHT SURFACE GRADIENT WILL RESULT IN WEIGHT WINDS FROM THE SOUTHWEST THIS AFTERNOON...FROM AROUND ROCK SPRINGS TO CASPER...INCLUDING THE SOUTHEASTERN HALF OF FREMONT COUNTY. HIGH WINDS WILL ELEVATE THE BLOW OVER RISK TO LIGHTWEIGHT OR HIGH PROFILE VEHICLES...ESPECIALLY ON WEST TO EAST ORIENTED ROADS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY SUNDAY...SNOWFALL WILL CONTINUE IN WESTERN WYOMING SUNDAY...WITH 3 TO 7 INCHES OF TOTAL SNOWFALL IN THE MOUNTAINS...ALONG WITH 1 TO 3 INCHES IN THE WESTERN VALLEYS...WITH MOST OF THE SNOWFALL EXPECTED IN THE NORTHERN PORTION OF THE VALLEYS. SOME LIGHT SNOW MAY ALSO FALL IN THE BIGHORN MOUNTAINS ON SUNDAY. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE ENCOURAGED TO REPORT ANY SNOWFALL ACCUMULATION. THANK YOU. TEAM RIVERTON
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RIVERTON WY 1212 PM MDT SAT NOV 1 2014 WYZ012-013-021100- JACKSON HOLE-TETON AND GROS VENTRE MOUNTAINS- 1212 PM MDT SAT NOV 1 2014 ...PERIODS OF MOUNTAIN SNOW THROUGH SUNDAY... A PACIFIC STORM SYSTEM WILL BRING PERIODS OF SNOW TO THE MOUNTAIN AREAS OF TETON COUNTY THROUGH SUNDAY. THE HIGHEST ACCUMULATIONS ARE EXPECTED ABOVE 9000 FEET WHERE 3 TO 6 INCHES...WITH LOCAL AMOUNTS UP TO 9 INCHES IS EXPECTED. WYZ001-021100- YELLOWSTONE NATIONAL PARK- 1212 PM MDT SAT NOV 1 2014 ...PERIODS OF MOUNTAIN SNOW THROUGH SUNDAY... A PACIFIC STORM SYSTEM WILL BRING PERIODS OF SNOW TO THE MOUNTAIN AREAS OF YELLOWSTONE NATIONAL PARK THROUGH SUNDAY. THE HIGHEST ACCUMULATIONS ARE EXPECTED ABOVE 9000 FEET WHERE 3 TO 6 INCHES...WITH LOCAL AMOUNTS UP TO 9 INCHES IS EXPECTED OVER TWO OCEAN PLATEAU. WYZ014-025-021100- UPPER GREEN RIVER BASIN FOOTHILLS-WIND RIVER MOUNTAINS WEST- 1212 PM MDT SAT NOV 1 2014 ...PERIODS OF MOUNTAIN SNOW THROUGH SUNDAY... A PACIFIC STORM SYSTEM WILL BRING PERIODS OF SNOW TO THE MOUNTAIN AREAS OF SUBLETTE COUNTY THROUGH SUNDAY. THE HIGHEST ACCUMULATIONS ARE EXPECTED ABOVE 9000 FEET WHERE 3 TO 6 INCHES...WITH LOCAL AMOUNTS UP TO 9 INCHES IS EXPECTED. WYZ023-024-021100- SALT RIVER AND WYOMING RANGES-STAR VALLEY- 1212 PM MDT SAT NOV 1 2014 ...PERIODS OF MOUNTAIN SNOW THROUGH SUNDAY... A PACIFIC STORM SYSTEM WILL BRING PERIODS OF SNOW TO THE MOUNTAIN AREAS OF LINCOLN COUNTY THROUGH SUNDAY. THE HIGHEST ACCUMULATIONS ARE EXPECTED ABOVE 9000 FEET WHERE 3 TO 6 INCHES...WITH LOCAL AMOUNTS UP TO 9 INCHES IS EXPECTED. C.BAKER
The national radar mosaic for the moment the first event began.
1 high wind. Local standard time, as filed.
The ASOS at Hunt Field in Lander reported a wind gust of 68 mph.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wyoming in 2014Every state in 2014This day in weather historyWarnings in Wyoming, November 2014
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: 542058.