Strong southwest wind descending the leeward slopes of the Wind River Mountains produced sustained wind of 50 to 57 mph along State Highway 28 above Red Canyon.
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The episode as NWS RIW wrote it up.
Strong southwest wind descending the leeward slopes of the Wind River Mountains produced sustained wind of 50 to 57 mph along State Highway 28 above Red Canyon.
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 Apr 14, 1:47 PM MST, 9 hours 53 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE RIVERTON WY 247 PM MDT MON APR 14 2008 .SHORT TERM...TONIGHT THROUGH THURSDAY PTCLDY SKY WITH PASSING HIGH CLOUDS OVER THE NORTH HALF OF THE AREA THIS AFTERNOON. BREEZY TO WINDY WITH THE WARMEST TEMPS OF THE YEAR OCCURRING. NO RECORDS ARE IN JEOPARDY IT APPEARS. FORECAST PROBLEM THE NEXT FEW DAYS WILL BE THIS INCOMING TROUGH. THE COLD FRONT AND PRECIP SHOULD REACH THE FAR WEST AFTER 09Z TONIGHT. DRY ELSEWHERE WITH WINDY TO BREEZY CONDITIONS AND MILD OVERNIGHT LOWS. THE WIND CORRIDOR IN SOUTH CENTRAL WY WILL APPROACH THE 30 TO 40 MPH RANGE WITH GUSTS 40 TO 50 MPH LATE TONIGHT. WILL NOT HOIST A WIND HIGHLIGHT AFTER COLLABORATION WITH CYS OFFICE. WILL ISSUE AN SPS TO INFORM THE PUBLIC OF THE WINDY WEATHER. ON TUESDAY THE COLD FRONT AND TROUGH MOVE INTO THE ROCKY MTN REGION. THE WEST WILL SEE PERIODS OF SNOW AND COLDER TEMPS. IN THE CENTRAL AND EAST... WINDY WITH A QUICK WARM UP BEFORE THE COLD FRONT PASSAGE...THEN SCATTERED SHOWERS AND TEMPS DROPPING AFTER FRONT BLOWS BY. AGAIN AREAS OF 30 TO 40 MPH WIND WITH GUSTS AROUND 50 MPH POSSIBLE IN THE CENTRAL AND EAST WITH FRONTAL PASSAGE. SCATTERED RAIN AND SNOW SHOWERS TUE EVENING...TURNING TO ALL SNOW SHOWERS BY MIDNIGHT. BRISK WIND TUE NIGHT. ON WED A COLD AND UNSTABLE AIRMASS EXPECTED WITH SNOW SHOWERS FOR THE MTS AND SCATTERED SNOW SHOWERS OVER THE LOWER ELEVATIONS. BRISK WIND AND COOLER HIGHS ALL AREAS. THE SNOW SHOWERS END TOWARD 06Z THU WITH DECREASING CLOUDS AFTER 06Z THU. COLD LOWS ON WED NIGHT. NW FLOW ALOFT FOR THURSDAY WITH DRY WEATHER AND WARMER HIGH TEMPS. .LONG TERM...THURSDAY NIGHT THROUGH SUNDAY THE FLOW QUICKLY BACKS TO WEST THEN SOUTHWEST AS A STRONG TROUGH DIGS INTO THE WEST COAST FRIDAY INTO SATURDAY. THIS WILL BRING A WARMING TREND TO THE AREA FOR THE END OF THE WEEK...WITH ABOVE AVERAGE TEMPERATURES EXPECTED FRIDAY AND SATURDAY. HOWEVER...AS THE FLOW BACK TO THE WEST...SOME SPOTTY PRECIPITATION IS EXPECTED ACROSS THE WEST/NORTHWEST FRIDAY AND SATURDAY. LOWER ELEVATIONS SHOULD SEE ALL RAIN OR RAIN/SNOW MIXTURE...WITH MAINLY SNOW IN THE HIGHER ELEVATIONS. MEDIUM RANGE MODELS DIVERGE SIGNIFICANTLY AFTER SATURDAY IN HANDLING THE UPPER LOW/TROUGH PROGRESSION EASTWARD. THE 00Z ECMWF SWINGS A TROUGH THROUGH THE AREA ON SUNDAY/SUNDAY NIGHT...EVENTUALLY BECOMING AN WEST TO EAST ELONGATED TROUGH EARLY NEXT WEEK ACROSS THE U.S. AND CANADA BORDER WITH A STRONG WESTERLY FLOW OVER THE AREA. THE 00Z GFS ON THE OTHER HAND KEEPS THE UPPER LOW/STRONG TROUGH ACROSS THE WESTERN THIRD OF THE COUNTRY THROUGH THE EXTENDED...WITH PIECES OF ENERGY OCCASIONALLY MOVING THROUGH THE TROUGH AND IMPACTING THE FORECAST AREA. THE GFS ENSEMBLE DATA IS IN PRETTY GOOD AGREEMENT ABOUT KEEPING THE STRONG TROUGH/UPPER LOW ACROSS THE WEST. THEREFORE...HAVE LEANED TOWARD THE GFS WITH THE BEST POPS FOR SUNDAY FOR NOW...BUT MONDAY WILL NEED TO BE WATCHED IF THE GFS IS CORRECT WITH SOME UPSLOPE CONDITIONS DEVELOPING...BUT DETAILS THIS FAR OUT IS SUSPECT AT BEST. TEMPERATURES SUNDAY AND MONDAY ARE EXPECTED TO BE SEASONAL TO SLIGHTLY BELOW AVERAGE. && .AVIATION... VFR CONDITIONS WILL BE WIDESPREAD THROUGH THE EVENING HOURS. HOWEVER...WINDS WILL CONTINUE TO INCREASE ACROSS THE AREA THROUGH THE LATE AFTERNOON AND EVENING HOURS TONIGHT AHEAD OF AN APPROACHING COLD FRONT. THIS FRONT WILL BRING SNOW AND RAIN SHOWERS AFTER 06Z THIS EVENING ACROSS THE NORTHWESTERN MOUNTAINS...WITH SHOWER ACTIVITY MOVING INTO THE WESTERN VALLEYS BY 13Z TUESDAY. THESE SHOWERS WILL BRING PERIODS OF MVFR TO IFR CONDITIONS ACROSS KJAC...KBPI...KPNA. POTENTIAL PERIODS OF LIFR CONDITIONS WILL BE NOTED OVER KJAC AFTER 15Z CONTINUING THROUGH THE AFTERNOON AS SHOWER ACTIVITY SPREADS EAST. ALL AREA AIRPORTS WILL SEE THE POSSIBILITY FOR SOME SHOWER ACTIVITY BY 00Z WEDNESDAY. THE STRONGER WINDS WILL PREVAIL THROUGH TUESDAY AFTERNOON AS WELL. && .FIRE WEATHER... BREEZY TO WINDY WEATHER TONIGHT AND DRY CONDITIONS. RELATIVE HUMIDITY WILL NOT RECOVER MUCH OVERNIGHT AS THE WIND WILL KEEP THE AIRMASS MIXED IN MANY LOCATIONS. EXPECT MILD TEMPERATURES TONIGHT AS WELL FOR MOST PLACES. A WEATHER SYSTEM MOVES INTO THE REGION ON TUESDAY WITH A COLD FRONT MOVING FROM WEST TO EAST ACROSS THE DISTRICT. A CHANCE OF RAIN AND SNOW IN THE WEST WITH SCATTERED AFTERNOON SHOWERS IN THE EAST WITH ISOLATED THUNDERSTORMS. COOLER HIGHS TUESDAY WITH THE PASSAGE OF THE COLD FRONT. TUESDAY NIGHT AND WEDNESDAY LOOK COOLER WITH SCATTERED SNOW SHOWERS...MOST NUMEROUS IN THE MOUNTAINS. && .RIW WATCHES/WARNINGS/ADVISORIES... FLOOD WATCH UNTIL 9 PM MDT THIS EVENING FOR WYZ013-023-024-027. && SHORT TERM...AR LONG TERM...WM AVIATION...BRANHAM FIRE WEATHER...AR
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RIVERTON WY 500 AM MDT MON APR 14 2008 WYZ001>020-022>030-151100- 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- 500 AM MDT MON APR 14 2008 ...FLOOD WATCH IN EFFECT FOR JACKSON HOLE...STAR VALLEY...THE WYOMING AND SALT RIVER RANGES AND SOUTHERN LINCOLN COUNTY THROUGH THIS EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING. .DAY ONE...TODAY AND TONIGHT SOUTHWEST WINDS WILL INCREASE OVER WESTERN WYOMING THIS MORNING... SPREADING TO THE REMAINDER OF THE AREA BY AFTERNOON. STRONG WINDS ARE POSSIBLE THIS AFTERNOON AND TONIGHT ACROSS SOUTHEAST FREMONT AND MUCH OF NATRONA COUNTIES. LOW RELATIVE HUMIDITY AND AN UNSTABLE AIRMASS WILL COMBINE TO INCREASE THE FIRE DANGER TODAY. HIGH TEMPERATURES IN THE UPPER 50S AND LOWER 60S ARE EXPECTED ACROSS THE WESTERN VALLEYS AND SOUTHWESTERN MOUNTAINS THIS AFTERNOON. THIS BRIEF PERIOD OF WARMING WILL INCREASE SNOWMELT IN THE LOWER ELEVATIONS OF WESTERN WYOMING...AS WELL AS CAUSE ICE TO BREAK UP AND POTENTIALLY JAM A RIVER OR STREAM. THESE CONDITIONS MAY PRODUCE MINOR FLOODING IN PORTIONS OF WESTERN WYOMING. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY A STRONG COLD FRONT WILL MOVE THROUGH WESTERN AND CENTRAL WYOMING TUESDAY MORNING. THE FRONT WILL BRING STRONG WINDS AND SCATTERED TO NUMEROUS SNOW SHOWERS TO THE WESTERN AND BIGHORN MOUNTAINS AND ISOLATED SNOW SHOWERS TO THE BASINS AND VALLEYS TUESDAY. SNOW SHOWERS ALONG AND EAST OF THE DIVIDE ARE EXPECTED TUESDAY NIGHT INTO WEDNESDAY. SPOTTER INFORMATION STATEMENT... SPOTTER ARE ENCOURAGED TO REPORT ANY FLOODING AND WINDS OVER 40 MPH. TEAM RIVERTON
The national radar mosaic for the moment the first event began.
1 high wind. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wyoming in 2008Every state in 2008This day in weather historyWarnings in Wyoming, April 2008
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: 83802.