High-based showers produced strong outflow wind gusts in the Arlington area.
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
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-based showers produced strong outflow wind gusts in the Arlington area.
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 May 28, 4:52 AM MST, 3 hours 23 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CHEYENNE WY 552 AM MDT MON MAY 28 2012 .AVIATION...12Z TAF ISSUANCE...VFR CONDITIONS WILL PREVAIL ACROSS THE FORECAST AREA TODAY...AND LIKELY THE NEXT SEVERAL DAYS. GUSTY WINDS WILL CONTINUE WITH GUSTS 35 TO 45 MPH THROUGH THE DAY AND DIMINISHING THIS EVENING. WINDS WILL BECOME LIGHT TONIGHT AS HIGH PRESSURE SHIFTS ACROSS THE AREA. && .PREV DISCUSSION... /ISSUED 332 AM MDT MON MAY 28 2012/ SHORT TERM...TODAY THROUGH WEDNESDAY CURRENTLY...STILL HAVE A FAIRLY TIGHT GRADIENT OVER SOUTHEASTERN WYOMING WITH AN 8 MB GRADIENT CURRENTLY BEING REPORTED BETWEEN CRAIG COLORADO AND CASPER. THIS IS RESULTING IN OBSERVED WIND SPEEDS OF 15 TO 25KTS SUSTAINED WITH GUSTS NEAR 40KTS ACROSS MUCH OF THE CWA. WIND OBSERVATIONS IN THE PANHANDLE QUITE A BIT LOWER...BUT STILL PRETTY BREEZY OUT THAT WAY AS WELL. LOWEST GATE OF THE MEDICINE BOW PROFILER HAS BEEN HOLDING STEADY THE PAST 3-4 HOURS RIGHT AROUND 40KTS...SO DO NOT EXPECT MUCH OF A CHANGE IN CURRENT WIND SPEEDS THROUGH THE EARLY MORNING HOURS. UPPER LOW CAUSING THE INCREASED GRADIENT CURRENTLY OVER NORTHEASTERN MONTANA...MOVING EVER SO SLOWLY TOWARDS THE NORTHEAST. DO NOT SEE MUCH OF A CHANGE IN SENSIBLE WEATHER THROUGH TODAY. WE DO SEE A SMALL INCREASE IN 700MB TEMPERATURES OVER THE NEXT 24 HOURS AS WE INCREASE FROM -2C THIS MORNING TO +2C TUESDAY MORNING. AFTERNOON HIGHS TODAY PRETTY SIMILAR TO YESTERDAYS HIGHS. FOR TUESDAY...THE UPPER RIDGE AXIS LOOKS TO BE OVER WYOMING WITH LESS WIND AND WARMER TEMPERATURES...700MB TEMPERATURES INCREASE TO +8C TUESDAY AFTERNOON. SHOULD SEE WIDESPREAD 6-8 DEGREES OF WARMING OVER TODAYS HIGHS. AN UPPER LOW PRESSURE SYSTEM MOVES INTO MONTANA WEDNESDAY DRAGGING A COLD FRONT INTO NORTHEASTERN WYOMING WEDNESDAY AFTERNOON. MAIN IMPACT ON US DOWN HERE IN SOUTHEAST WYOMING WOULD BE A RETURN OF BREEZY TO LOCALLY WINDY CONDITIONS ONCE AGAIN. FOR THE PANHANDLE...MODELS SUGGESTING...AND HAVE BEEN SUGGESTING THE PAST SEVERAL MODEL RUNS...THAT EAST TO NORTHEASTERLY WINDS RETURN WITH INCREASING LOW LEVEL MOISTURE. COULD SEE LOW CLOUDS RETURNING IN UPSLOPING WINDS AND A SLIGHT INCREASE IN PRECIP CHANCES. HAVE CONTINUED SLIGHT CHANCE WORDING FOR THE PANHANDLE FOR WEDNESDAY AFTERNOON. LONG TERM...THURSDAY THROUGH SUNDAY NIGHT...ALL MODELS SHOW QUIET WEATHER THROUGH THE END OF THE WEEK AND INTO NEXT WEEKEND WITH WARMER THAN NORMAL TEMPERATURES CONTINUING OVER SOUTHEAST WYOMING AND WESTERN NEBRASKA. A RIDGE OF HIGH PRESSURE ALOFT WILL REMAIN ACROSS THE WESTERN UNITED STATES INTO NEXT WEEK AND GRADUALLY DRIFT EASTWARD OVER THE NORTHERN AND CENTRAL ROCKIES. THIS WILL RESULT IN A STORM TRACK WELL TO THE NORTH OF WYOMING WITH GENERALLY DRY CONDITIONS PREVAILING. CAN NOT RULE OUT AN ISOLATED THUNDER SHOWER OR TWO EACH DAY ACROSS THE HIGHER ELEVATIONS OF WYOMING...DUE TO SOME INSTABILITY AND AMPLE MOISTURE. HOWEVER...WITH MIDLEVEL SUBSIDENCE REMAINING OVER THE AREA ASSOCIATED WITH THE UPPER LEVEL RIDGE...BELIEVE ANY CHANCE OF PRECIPITATION WILL BE RATHER LOW. KEPT POP AROUND 10 PERCENT EACH DAY EXCEPT FOR THURSDAY AND SATURDAY AFTERNOONS WHERE THERE WILL BE A SLIGHTLY HIGHER CHANCE OF THUNDER DUE TO A WEAK SHORTWAVE MOVING ACROSS THE FORECAST AREA AND A BIT MORE LLVL MOISTURE. OTHERWISE...NO DECENT CHANCES OF WIDESPREAD PRECIPITATION ARE EXPECTED THROUGH NEXT WEEKEND AT THIS TIME. HIGH TEMPERATURES WILL CONTINUE TO INCREASE INTO NEXT WEEKEND WITH HIGHS IN THE 80S TO AROUND 90 BY SATURDAY AND SUNDAY. LOW TEMPERATURES ARE ALSO EXPECTED TO BE ON THE MILD SIDE THROUGH THE PERIOD. FIRE WEATHER... ANOTHER BREEZY TO LOCALLY WINDY DAY TODAY WITH WIND GUSTS TO 40 MPH POSSIBLE ACROSS SOUTHEAST WYOMING AND 30 TO 35 MPH IN THE PANHANDLE. FORTUNATELY...WE ARE LOOKING AT SLIGHTLY COOLER TEMPERATURES WHICH WILL KEEP AFTERNOON HUMIDITIES IN THE UPPER TEENS AND LOW 20 PERCENT RANGE. WINDS TO EASE THIS EVENING INTO WEDNESDAY AS UPPER HIGH PRESSURE BUILDS OVER WYOMING. EXPECT POOR TO FAIR HUMIDITY RECOVERIES OVERNIGHT. BY WEDNESDAY...LOW PRESSURE OVER MONTANA WILL BEGIN TO MOVE SOUTHWARD WITH A RETURN OF GUSTY WINDS AND ELEVATED FIRE WEATHER CONDITIONS...ESPECIALLY ALONG AND WEST OF THE LARAMIE RANGE. THIS LOW WILL CREATE UPSLOPING WINDS AND HIGHER HUMIDITIES IN THE PANHANDLE...EASING FIRE WEATHER CONCERNS WEDNESDAY AFTERNOON AND EVENING. IT WILL ALSO BRING AN INCREASED CHANCE FOR SHOWERS ACROSS CONVERSE...NIOBRARA COUNTIES AS WELL AS THE PANHANDLE. && .CYS WATCHES/WARNINGS/ADVISORIES... WY...NONE. NE...NONE. && SHORT TERM/FIRE WEATHER...CLAYCOMB LONG TERM/AVIATION...TJT
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHEYENNE WY 528 AM MDT MON MAY 28 2012 WYZ101>119-291130- CONVERSE COUNTY LOWER ELEVATIONS-NIOBRARA COUNTY- NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS- SHIRLEY BASIN-CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- EAST PLATTE COUNTY-GOSHEN COUNTY-CENTRAL CARBON COUNTY- NORTH SNOWY RANGE FOOTHILLS-SOUTHWEST CARBON COUNTY- SIERRA MADRE RANGE-UPPER NORTH PLATTE RIVER BASIN-SNOWY RANGE- LARAMIE VALLEY-SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS- CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY- 528 AM MDT MON MAY 28 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST WYOMING. .DAY ONE...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY ISOLATED LATE DAY THUNDERSTORMS WILL BE POSSIBLE WEDNESDAY THROUGH FRIDAY...MAINLY NEAR THE MOUNTAINS. NO SEVERE THUNDERSTORMS ARE EXPECTED. .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 NEZ002-003-019>021-054-055-095-096-291130- DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE- NORTH SIOUX-SOUTH SIOUX- 528 AM MDT MON MAY 28 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN NEBRASKA PANHANDLE. .DAY ONE...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY WIDELY SCATTERED LATE DAY THUNDERSTORMS WILL BE POSSIBLE WEDNESDAY AND THURSDAY. NO SEVERE THUNDERSTORMS ARE EXPECTED. .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 TT
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 547 AM MDT MON MAY 28 2012 WYZ106-110-116-281500- CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- NORTH SNOWY RANGE FOOTHILLS-SOUTH LARAMIE RANGE- INCLUDING THE CITIES OF...BORDEAUX...ARLINGTON...ELK MOUNTAIN... VEDAUWOO...BUFORD...PUMPKIN VINE 547 AM MDT MON MAY 28 2012 ...STRONG WINDS TO EASE THROUGH THE MORNING HOURS... THROUGH 9 AM THIS MORNING...EXPECT WESTERLY WINDS OF 30 TO 40 MPH WITH GUSTS NEAR 55 MPH TO AFFECT TRAVELERS ON INTERSTATE 80 OVER THE LARAMIE SUMMIT AND NEAR ARLINGTON. LIGHT WEIGHT AND HIGH PROFILE VEHICLES COULD BE IMPACTED BY SUDDEN HIGH WIND GUSTS. THE OTHER AREA OF CONCERN IS ON INTERSTATE 25 NEAR BORDEAUX WHERE SIMILAR WEST WINDS COULD SUDDENLY CREATE STRONG CROSS WINDS FOR NORTH AND SOUTHBOUND LIGHT WEIGHT AND HIGH PROFILE VEHICLES. THESE WINDS ARE EXPECTED TO BEGIN DECREASING IN STRENGTH BY 9 AM THIS MORNING. TRAVELERS ON INTERSTATES 80 AND 25 SHOULD BE PREPARED FOR THESE SUDDEN WIND GUSTS.
The national radar mosaic for the moment the first event began.
1 high wind. Local standard time, as filed.
The WYDOT sensor at Arlington measured peak wind gusts of 58 mph or greater, with a peak gust of 61 mph at 28/0836.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wyoming in 2012Every state in 2012This day in weather historyWarnings in Wyoming, May 2012
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: 374000.