An unseasonably strong low pressure area over the northern plains generated high winds over parts of Laramie county.
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.
An unseasonably strong low pressure area over the northern plains generated high winds over parts of Laramie county.
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 Jun 11, 2:04 AM MST, 10 hours 56 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CHEYENNE WY 304 AM MDT WED JUN 11 2008 .SHORT TERM...TODAY THROUGH THURSDAY NIGHT... MAIN UPPER LOW CENTER IS LOCATED ACROSS WEST CENTRAL MONTANA... WITH SECONDARY SHORTWAVE ENERGY ACCELERATING EASTWARD THROUGH CENTRAL IDAHO EARLY THIS AM. SURFACE COLD FRONT ASSOCIATED WITH THE MAIN UPPER LOW HAS PUSHED SOUTH INTO CENTRAL COLORADO. THE MAIN BAROCLINIC CLOUD BAND AND ASSOCIATED PRECIP...WHICH HAS BEEN VERY SLOW MOVING OVER THE PAST 3 TO 4 HOURS...HAS SET UP FROM NE UTAH THROUGH THE WRN DAKOTAS. THIS BAND LINES UP PRETTY WELL WITH THE 600MB FRONT. THE FRONTAL INVERSION HAS MADE IT TO A DEPTH OF ABOUT 10 KFT PER KCYS VAD. 3-HOUR ISALLOBARIC PRESSURE RISES ON THE ORDER OF 4 TO 8 MB HAVE BEEN EFFICIENT IN CREATING STRONG SURFACE WINDS EARLY THIS AM. CONTEMPLATED A WIND ADVISORY FOR THE PANHANDLE FOR A FEW HOURS EARLY THIS MORNING...BUT WITH ONLY A FEW SITES SURPASSING CRITERIA CURRENTLY...BEST PRESSURE RISES OVER THEM NOW...AND WEAKENING ANTICIPATED...WILL HOLD OFF. MODELS SUGGEST THAT BAROCLINIC BAND AND ASSOCIATED PRECIPITATION WILL BECOME FRACTURED AND WEAKEN OVER THE NEXT 3 TO 6 HOURS AS THE SECONDARY SHORTWAVE APPROACHES FROM THE WEST. SO...HAVE KEPT MOST AREAS DRY THIS AM...WITH THE EXCEPTION OF NORTHERNMOST ZONES AND THE HIGHER TERRAIN. BY THIS AFTERNOON...SLIGHTLY NEGATIVE LIFTED INDICES AND CAPE VALUES OF AROUND 200 TO 300 J/KG BENEATH THE MID- LEVEL THERMAL TROUGH...WILL COMBINE WITH THE SECONDARY SHORTWAVE TO PRODUCE A FEW ISOLATED SHOWERS ACROSS THE CWA. THE DOWNSLOPE COMPONENT WILL LIMIT COVERAGE. CONVECTION WILL LINGER THROUGH THE EVENING...BEFORE DISSIPATING SHORTLY AFTER SUNSET. AFTERNOON HIGH TEMPERATURES WILL BE AROUND 20 DEGREES COOLER TODAY WITH HIGHS IN THE 50S WEST...AND 60S EAST. ANOTHER ROUND OF ISOLATED AFTERNOON AND EVENING CONVECTION IS ANTICIPATED AGAIN ON THURSDAY...BUT COVERAGE WILL CONTINUE TO BE LIMITED. A DRIER AIR MASS WILL BEGIN TO MOVE IN BEGINNING THURSDAY NIGHT. A FEW DEGREES OF WARMING WILL OCCUR ON THURSDAY...BUT TEMPERATURES WILL CONTINUE TO BE UNSEASONABLY COOL. .LONG TERM...FRIDAY THROUGH WEDNESDAY... MAIN BELT OF WESTERLIES LOOKS TO RETREAT A LITTLE NORTHWARD BY SATURDAY AS UPPER LOW LIFTS NORTHEAST OVER WESTERN ONTARIO WITH GENERAL WNW UPPER FLOW OVER THE CWA THROUGH THE WEEKEND INTO EARLY NEXT WEEK. EXPECT MAINLY DRY WEATHER ACROSS THE CWA AS INSTABILITY AND BETTER MOISTURE REMAIN WELL EAST OF THE CWA THROUGH THE WEEKEND. SOME INDICATION OF MOISTURE RETURN UP THE HIGH PLAINS EARLY NEXT WEEK BUT UPPER RIDGING WILL BEGIN TO BUILD OVER THE ROCKY MTNS WHICH MAY CAP CONVECTION AT LEAST TO SOME DEGREE. TEMPERATURES WARMING UP SOME ON SATURDAY THEN NEXT COOL FRONT EXPECTED TO PASS ACROSS SATURDAY EVENING AS SHORTWAVE SCOOTS ACROSS THE NORTHERN ROCKIES INTO THE NORTHERN PLAINS BY SUNDAY MORNING. SFC HIGH SETTLES OVER THE REGION SUNDAY NIGHT AND MONDAY THEN MOVES AWAY TUESDAY ALLOWING FOR SOME RETURN FLOW. && .AVIATION... STRONG NORTHWEST WINDS THIS MORNING...WILL TURN MORE WESTERLY AND REMAIN STRONG THIS AFTERNOON. THIS WILL CREATE TURBULENCE IN AND AROUND THE HIGHER TERRAIN. OTHERWISE...POCKETS OF LOWER CLOUDS AND MVFR CIGS WILL BE POSSIBLE FOR A TIME THIS MORNING...BUT MOST TERMINALS WILL EXPERIENCE VFR CONDITIONS. ANOTHER DISTURBANCE WILL BRING ISOLATED SHOWERS TO THE AREA TODAY...BUT EXPECT CONDITIONS TO CONTINUE TO BE VFR THROUGH TONIGHT. && .CYS WATCHES/WARNINGS/ADVISORIES... WY...NONE. NE...NONE. && SHORT TERM/AVIATION...HAHN LONG TERM....RE
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHEYENNE WY 400 AM MDT WED JUN 11 2008 WYZ059-061>067-069-121130- CONVERSE-SOUTHWEST CARBON-NORTH CARBON-SNOWY RANGE- NORTH LARAMIE RANGE-LARAMIE VALLEY-LARAMIE RANGE-PLATTE- CHEYENNE FOOTHILLS- 400 AM MDT WED JUN 11 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST WYOMING. .DAY ONE...TODAY AND TONIGHT ISOLATED THUNDERSTORMS ARE POSSIBLE MAINLY THIS AFTERNOON INTO EARLY THIS EVENING. ANY THUNDERSTORMS THAT DO FORM ARE NOT EXPECTED TO BE SEVERE. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY ISOLATED MAINLY AFTERNOON AND EARLY EVENING THUNDERSTORMS ARE POSSIBLE AGAIN THURSDAY. OTHERWISE RATHER STRONG AND GUSTY WESTERLY WINDS ARE LIKELY BY LATE THURSDAY MORNING THROUGH THE AFTERNOON...ESPECIALLY IN WIND PRONE AREAS. .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 NEZ001>003-019>021-054-055-WYZ060-068-070-121130- SIOUX-DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL- CHEYENNE-NIOBRARA-GOSHEN-PINE BLUFFS- 400 AM MDT WED JUN 11 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN NEBRASKA PANHANDLE AND SOUTHEAST WYOMING. .DAY ONE...TODAY AND TONIGHT ISOLATED THUNDERSTORMS ARE POSSIBLE MAINLY THIS AFTERNOON INTO EARLY THIS EVENING. ANY THUNDERSTORMS THAT DO FORM ARE NOT EXPECTED TO BE SEVERE. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY ISOLATED MAINLY AFTERNOON AND EARLY EVENING THUNDERSTORMS ARE POSSIBLE AGAIN THURSDAY. .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 126 PM MDT WED JUN 11 2008 WYZ062>067-069-112100- NORTH CARBON-SNOWY RANGE-NORTH LARAMIE RANGE-LARAMIE VALLEY- LARAMIE RANGE-PLATTE-CHEYENNE FOOTHILLS- INCLUDING THE CITIES OF...HANNA...MEDICINE BOW...CENTENNIAL... GARRETT...LARAMIE...BUFORD...HORSE CREEK...WHEATLAND...GUERNSEY... CHEYENNE 126 PM MDT WED JUN 11 2008 ...STRONG AND GUSTY WINDS THIS AFTERNOON... STRONG WEST WINDS WILL CONTINUE THROUGH AROUND 300 PM MDT THIS AFTERNOON ACROSS PORTIONS OF SOUTHEAST WYOMING. THE STRONG WINDS WILL BE PRESENT IN THE CHEYENNE AREA...ALONG INTERSTATE 80 OVER THE SUMMIT BETWEEN CHEYENNE AND LARAMIE AND IN THE ARLINGTON AREA...AND ALONG INTERSTATE 25 IN PLATTE COUNTY NEAR BORDEAUX. EXPECT WIND SPEEDS TO CONTINUE AT 30 TO 45 MPH SUSTAINED...WITH BRIEF GUSTS TO 50 TO 60 MPH POSSIBLE THROUGH 300 PM MDT. CARPENTER
1 high wind. Local standard time, as filed.
Wind gust of 66 mph recorded in Cheyenne with other gusts from 60 to 70 mph recorded mainly west and northwest of Cheyenne, WY. Report of a tree felled onto a car in Cheyenne.
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, June 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: 93779.