A cluster of virga and light rain showers produced locally high winds due to an inverted-v sounding environment.
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 VEF wrote it up.
A cluster of virga and light rain showers produced locally high winds due to an inverted-v sounding environment.
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 Las Vegas, NV wrote its last area forecast discussion before the first event at May 29, 2:01 AM PST, 5 hours 9 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LAS VEGAS NV 301 AM PDT FRI MAY 29 2009 .SYNOPSIS...LIMITED MOISTURE WILL CONTINUE TO PRODUCE ISOLATED AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS ACROSS THE REGION THROUGH SUNDAY. THESE STORMS WILL OCCUR MAINLY OVER THE MOUNTAINS AND ARE EXPECTED TO PRODUCE LITTLE RAINFALL. ABOVE NORMAL TEMPERATURES WILL CONTINUE THROUGH THE WEEKEND...WHICH WILL MAKE MAY 2009 ONE OF THE WARMEST ON RECORD. && .SHORT TERM...INTERESTING INTERACTIONS BETWEEN LARGE SCALE AND SMALL SCALE FEATURES THIS MORNING. SATELLITE SHOWS UPPER LOW APPROACHING SAN DIEGO...SLIDING SOUTH OF THE UPPER HIGH CENTERED OVER NORTHERN CALIFORNIA AND NEVADA. THIS HAS SET UP A ZONE OF ENHANCED EASTERLY FLOW OVER NORTHWEST ARIZONA/FAR SOUTHERN NEVADA/SOUTHEAST CALIFORNIA. EARLIER THIS EVENING...A LONG LIVED THUNDERSTORM OVER THE SAN JOAQUIN VALLEY EJECTED AN OUTFLOW BOUNDARY TO ITS EAST. THIS BOUNDARY TRACKED ALL THE WAY INTO ARIZONA RIGHT UNDERNEATH THE ZONE OF ENHANCED EASTERLY FLOW...INCREASING THE LIFT AND SHEAR. THIS HAS RESULTED IN ENHANCED CLOUDINESS WITH A FEW SHOWERS BREAKING OUT. SUSPECT THIS WILL ONLY PERSIST THROUGH 7 AM OR SO...SO PAINTED SOME SLIGHT CHANCE POPS AND BEEFED UP CLOUD COVER IN THE MORNING GRIDS. OTHERWISE...THE SONG REMAINS THE SAME. RESIDUAL MOISTURE WILL CONTINUE TO BE RECYCLED UNTIL THERE IS A PERIOD OF STRONGER FLOW TO FLUSH IT OUT...AND THAT IS NOT LIKELY TO OCCUR THROUGH THE SHORT TERM. DAY TO DAY POPS WILL BE MODULATED BY SMALL SCALE FEATURES SUCH AS OUTFLOW BOUNDARY INTERACTIONS WHICH CANNOT BE RELIABLY PREDICTED DAYS IN ADVANCE. TEMPERATURES WILL REMAIN ABOVE AVERAGE /ESPECIALLY LOW TEMPS/ AND NO SIGNIFICANT WINDS ARE EXPECTED OUTSIDE OF THUNDERSTORMS. .LONG TERM...00Z OPERATIONAL MODELS CONCUR WITH PREVIOUS FORECASTER OBSERVATION THAT A PACIFIC LOW APPROACHES AND THEN STALLS OFF THE THE SOUTHWEST COAST RESULTING IN A WARMER FORECAST THROUGH THE EXTENDED PERIOD. CONTINUED TO FOLLOW THAT TREND WITH THIS MORNINGS FORECAST EVEN THOUGH GFS ENSEMBLE MEMBERS AND MEN GUIDANCE ARE SHOWING AN INCREASINGLY LARGE SPREAD BY WEDNESDAY INDICATING A HIGHER DEGREE OF UNCERTAINTY. AND ALTHOUGH OPERATIONAL MODELS ARE FORECASTING DRYING CONDITIONS LATE IN THE WEEK...THE LEVEL OF UNCERTAINTY JUSTIFIES LEAVING AT LEAST A MENTION OF AFTERNOON AND EVENING THUNDERSTORMS ACROSS PORTIONS OF SE CALIFORNIA...SOUTHERN NEVADA AND NW ARIZONA AND FAIRLY WIDESPREAD CU FORMATION EACH DAY. GUSTY SOUTHERLY WINDS ARE ALSO ANTICIPATED EACH AFTERNOON MONDAY THROUGH AT LEAST THURSDAY POSSIBLY RESULTING IN AN INCREASED FIRE WEATHER THREAT. THESE CONCERNS WILL BE ADDRESSED AS THE TIME DRAWS CLOSER. && .AVIATION...FOR MCCARRAN...GENERALLY LIGHT WINDS UNDER 8KTS TO CONTINUE THROUGH THE MORNING BECOMING EAST THIS AFTERNOON. THE POTENTIAL EXISTS FOR OUTFLOW BOUNDARIES FROM NEAR BY THUNDERSTORMS AFFECTING THE AIRPORT DURING THE AFTERNOON/EVENING HOURS TODAY. TOMORROW. THE BEST OF THUNDERSTORMS ARE OVER THE MOUNTAINS SURROUNDING THE VALLEY...BUT LITTLE CHANCE OF PRECIPITATION IS EXPECTED AT THE AIRPORT. SKY COVER WILL BE SCT-BKN BUT WILL GENERALLY REMAIN AOA 12 KFT. FOR THE REST OF SOUTHERN NEVADA...NORTHWEST ARIZONA...AND SOUTHEAST CALIFORNIA...GENERALLY LIGHT WINDS UNDER 15 KTS WITH ISOLATED SHOWERS AND THUNDERSTORMS OVER PORTIONS OF THE AREA THIS MORNING. A BETTER CHANCE EXISTS THIS AFTERNOON AND EVENING WITH GUSTY OUTFLOW WINDS OCCURRING IN THE VICINITY OF THUNDERSTORMS. SKY COVER WILL VARY FROM FEW-BKN BUT WILL GENERALLY BE AOA 10 KFT. && .CLIMATE...MAY 2009 HAS BEEN A WARM ONE ACROSS THE AREA SO FAR...AND IS LIKELY TO FINISH AS ONE OF THE TOP 5 WARMEST ON RECORD...IF NOT THE WARMEST. BELOW ARE THE TOP 5 WARMEST MAYS ON RECORD FOR SEVERAL LOCATIONS IN OUR AREA. RANK LAS VEGAS BISHOP BARSTOW-DAGGETT NEEDLES -------------------------------------------------------------------- 1. 82.2/2001 68.6/1994 81.0/2001 87.5/1997 2. 81.6/1997 68.4/2001 80.8/1997 87.2/2006 3. 81.0/2006 66.9/1954 80.0/1984 87.1/2000 4. 80.8/2000 66.7/1966 79.0/2000 86.1/1984 5. 80.7/1984 66.6/1992 78.5/1976 86.1/1984 -------------------------------------------------------------------- 2009* 83.5* 68.6* 80.5* 87.9* * AVERAGES FOR 2009 ARE THROUGH 5/28. BY THE WAY...WHAT IS TYPICALLY THE WINDIEST MONTH OF THE YEAR IN LAS VEGAS HAS NOT BEEN THAT WINDY THIS YEAR. THROUGH THE 28TH THE AVERAGE WIND SPEED HAS BEEN 7.2 MPH...WHICH IS 4.0 MPH BELOW NORMAL. THIS MAY COULD BE THE LEAST WINDY MAY ON RECORD IN LAS VEGAS. THE LEAST WINDY MAY WAS SET IN 2006 WITH AN AVERAGE WIND OF 7.8 MPH. SECOND PLACE WAS 2003 WITH 8.1 MPH. THIRD PLACE IS 8.2 MPH SET IN BOTH 1952 AND 2002. WIND RECORDS DATE BACK TO 1949. && .VEF WATCHES/WARNINGS/ADVISORIES... NV...NONE. AZ...NONE. CA...NONE. && MORGAN/SALMEN HTTP://WEATHER.GOV/LASVEGAS
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LAS VEGAS NV 352 AM PDT FRI MAY 29 2009 AZZ001>003-036-CAZ519>527-NVZ014>022-300700- NORTHWEST PLATEAU-LOWER COLORADO RIVER VALLEY-NORTHWEST DESERTS- LAKE MEAD NATIONAL RECREATION AREA-EASTERN SIERRA SLOPES- OWENS VALLEY-WHITE MOUNTAINS OF INYO COUNTY- DEATH VALLEY NATIONAL PARK-WESTERN MOJAVE DESERT- EASTERN MOJAVE DESERT-MORONGO BASIN-CADIZ BASIN- SAN BERNARDINO COUNTY-UPPER COLORADO RIVER VALLEY- ESMERALDA AND CENTRAL NYE COUNTY-LINCOLN COUNTY- NORTHEAST CLARK COUNTY-WESTERN CLARK AND SOUTHERN NYE COUNTY- SHEEP RANGE-SPRING MOUNTAINS-LAS VEGAS VALLEY- SOUTHERN CLARK COUNTY- 352 AM PDT FRI MAY 29 2009 /352 AM MST FRI MAY 29 2009/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST ARIZONA...CALIFORNIA AND SOUTHERN NEVADA. .DAY ONE...TODAY AND TONIGHT ISOLATED TO SCATTERED THUNDERSTORMS ARE EXPECTED AGAIN THIS AFTERNOON AND EVENING...MAINLY OVER HIGHER TERRAIN. THE CHANCE OF SEVERE WEATHER IS LOW...BUT IF IT WERE TO OCCUR...THE MOST LIKELY THREAT WOULD BE HIGH WINDS. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY ISOLATED AFTERNOON AND EVENING THUNDERSTORMS CAN BE EXPECTED EACH DAY. THE PROBABILITY OF WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED. HOWEVER...SPOTTERS ARE ENCOURAGED TO REPORT ANY SIGNIFICANT WEATHER ACCORDING TO STANDARD OPERATING PROCEDURES. MORGAN
1 strong wind. Local standard time, as filed.
Strong winds knocked down four power poles at the intersection of U.S. Hwy. 93 and Ville Drive in Boulder City. 300 people were without power for about four hours.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Nevada in 2009Every state in 2009This day in weather historyWarnings in Nevada, May 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: 163407.