An approaching storm system brought localized southwesterly downslope winds off the Spring Mountains into the west side of the Las Vegas Valley. The winds produced isolated damage.
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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.
An approaching storm system brought localized southwesterly downslope winds off the Spring Mountains into the west side of the Las Vegas Valley. The winds produced isolated damage.
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 Nov 27, 9:06 PM PST, 3 hours 54 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LAS VEGAS NV 906 PM PST SAT NOV 27 2010 .SYNOPSIS...A STORM SYSTEM WILL MOVE ACROSS THE AREA TONIGHT INTO SUNDAY BRINGING MOUNTAIN SNOW WITH A CHANCE OF RAIN AND SNOW SHOWERS TO THE LOWER ELEVATIONS FROM INTERSTATE 40 NORTHWARD. GUSTY NORTH WINDS BEHIND THIS SYSTEM WILL BRING A REINFORCING SHOT OF COLDER AIR TO THE AREA FOR MONDAY AND TUESDAY. ANOTHER SYSTEM WILL MOVE ACROSS THE AREA THURSDAY INTO FRIDAY BRINGING THE CHANCE AGAIN FOR MOUNTAIN SNOW AND LOWER ELEVATION RAIN MAINLY TO THE SOUTHERN GREAT BASIN. && .UPDATE...SNOW SHOWERS APPROACHING THE SIERRA HAVE BEEN DECREASING IN COVERAGE AND INTENSITY...AND SIGNIFICANT SNOW IS NO LONGER LIKELY. THUS...CANCELLED THE WINTER WEATHER ADVISORY EARLY. ALSO RAISED POPS ALONG I-15 FROM BARSTOW TO LAS VEGAS AS SATELLITE AND RADAR INDICATE A LOOSELY ORGANIZED BAND OF CLOUDS AND LIGHT SHOWERS DEVELOPING THERE. && .AVIATION...FOR MCCARRAN...SOUTHWEST WINDS 10-15KTS THROUGH THE NIGHT WITH SOME GUSTINESS POSSIBLE TO AROUND 25KTS. SCT-BKN CLOUD DECK AROUND 10K FT OVERNIGHT WITH A VICINITY SHOWER POSSIBLE BY MIDNIGHT. SCT CLOUDS NEAR 5K FT ARE POSSIBLE WITH SHOWERS. A COLD FRONT WILL PUSH THROUGH THE VALLEY ON SUNDAY PROVIDING A WIND SHIFT FROM WEST AND THEN NORTHWEST AT 10 TO 15 KTS WITH HIGHER GUSTS. FOR THE REST OF SOUTHERN NEVADA...NORTHWEST ARIZONA...AND SOUTHEAST CALIFORNIA...AT 04Z THIS EVENING...A COLD FRONT BEGAN ITS PUSH INTO THE NORTHWESTERN REGIONS OF THE FORECAST AREA AND WILL CONTINUE TO PUSH SOUTH THROUGH THE AREA THROUGH THE REMAINDER OF THE NIGHT AND INTO SUNDAY. GUSTY SOUTHWEST WINDS TO NEAR 30KTS ARE EXPECTED AHEAD OF THE FRONT WITH GUSTY NORTHWEST WINDS TO 30KTS BEHIND IT. CLOUD COVER IN GENERAL WILL INCREASE AND SPREAD SOUTH AHEAD AND WITH THE FRONT. BASES WILL GENERALLY BE FROM 8-10K FT BUT LOWER THAN 4K FT IN AREAS THAT EXPERIENCE SHOWER ACTIVITY. MTNS WILL BE INCREASINGLY OBSCURED AS THE NIGHT UNFOLDS. && .PREVIOUS DISCUSSION... ISSUED 322 PM PST SAT NOV 27 2010 .SHORT TERM...OUR LATEST STORM SYSTEM CONTINUES TO MOVE EASTWARD ACROSS WASHINGTON...OREGON AND THE NORTHERN HALF OF CALIFORNIA THIS AFTERNOON. RADAR RETURNS AND SPOTTER CALLS ALREADY CONFIRM PRECIPITATION HAS SPILLED OVER INTO THE SOUTHERN PORTIONS OF THE EASTERN SIERRA NEVADA. PRECIPITATION LOOKS TO BE SHORT-LIVED HERE AS THE WRF AND GFS CUT-OFF MOST OF THE SIGNIFICANT QPF AFTER 06Z SUNDAY. AS THE BASE OF THE 500 MB TROUGH SWINGS ACROSS SOUTH-CENTRAL CALIFORNIA TONIGHT PRECIPITATION WILL SPREAD EASTWARD BUT THIS IS NOT A SYSTEM PACKED WITH CONSIDERABLE MOISTURE AND THUS AMOUNTS WILL BE LIGHT. HOWEVER...PVA LOOKS PRETTY GOOD AHEAD OF AND WITH THE BASE OF THE 500 MB TROUGH AND GIVEN THE GOOD FORCING THIS WILL SQUEEZE OUT SOMETHING ACROSS MOST AREAS NORTH OF I-40 LATE TONIGHT INTO SUNDAY MORNING. PRECIPITATION WILL LAST A FEW HOURS TOPS IN MOST AREAS. THIS IS A RATHER CHILLY SYSTEM AND THUS SNOW LEVELS WILL CRASH RATHER LOW WITH THE PASSAGE OF THE ASSOCIATED SURFACE COLD FRONT. 700 MB TEMPS DROP TO AT LEAST 10C ACROSS THE AREAS EXPECTED TO SEE PRECIPITATION TONIGHT AND SUNDAY AND THIS BASED ON LOCAL RULES OF THUMB WOULD PLACE SNOW LEVELS AROUND 3500 FEET. ADDITIONALLY THE LOW LEVELS ARE NOT THAT MOIST AND GIVEN SOME LOW LEVEL DRY AIR WILL HANG ON EVAPORATIVE COOLING MAY FURTHER LOW SNOW LEVELS ESPECIALLY WHERE PRECIPITATION INTENSITY IS GREATER. FOR THE LAS VEGAS VALLEY...THERE IS THE POTENTIAL FOR A FEW RAIN SHOWERS/SPRINKLES AND SOME OF IT MAY EVEN MIX WITH OR FALL AS ALL SNOW (THOUGH NON-ACCUMULATING) ESPECIALLY TOWARDS THE FAR WEST SIDE OF THE VALLEY IN A SIMILAR MANOR TO WHAT WE SAW THIS PAST WEDNESDAY. ALTHOUGH SNOW LEVELS GET LOW ENOUGH OUTSIDE OF THE EASTERN SIERRA AMOUNTS DO NOT LOOK GREAT ENOUGH TO ISSUE ANY ADVISORIES BUT ROADS MAY GET A QUICK COATING TO AN INCH OR SO AT THE 4000 FOOT LEVEL OR HIGHER. IN ADDITION...WINDS WILL PICK UP TONIGHT INTO SUNDAY. 50 KT WINDS ARE FORECAST AS LOW AS 850 MB NEAR BARSTOW AND ALTHOUGH BUFR SOUNDINGS SHOW A SUBTLE INVERSION IN PLACE THAT WOULD KEEP THESE FROM FULLY MIXING DOWN...GRADIENTS ARE TIGHT ENOUGH THAT WE COULD SEE SOME MARGINAL LOW END ADVISORY GUSTS. ALSO GIVEN THE BUSY TRAVEL DAY SUNDAY OPTED TO ISSUE A WIND ADVISORY FOR NORTHWEST SAN BERNARDINO COUNTY TO COVER THIS. THE AFOREMENTIONED SYSTEM HEADS EAST SUNDAY NIGHT AND DRY NORTHWEST FLOW ALOFT CLEARS THINGS OUT ACROSS THE AREA. GUSTY NORTHWEST WINDS WILL BLOW THROUGH SUNDAY NIGHT ALLOWING ANOTHER ADVECTION FREEZE TO TAKE PLACE IN MANY LOWER DESERT VALLEYS INCLUDING OUTLYING AREAS OF THE LAS VEGAS VALLEY. DRY NORTHWEST FLOW ALOFT CONTINUES FOR MONDAY. SURFACE HIGH PRESSURE BUILDS INTO THE NORTHERN GREAT BASIN INCREASING NORTH-SOUTH SURFACE PRESSURE GRADIENTS. IN ADDITION 700 MB WINDS ARE OUT OF THE NORTH AT UP TO 30 KTS. THUS THE POTENTIAL FOR LAKE WIND ADVISORY CRITERIA EXISTS THEN. GIVEN THE GUSTY WINDS AND CHILLY AIR MASS IN PLACE HIGH TEMPS WILL BE NEARLY 12 DEGREES BELOW NORMAL. WINDS LET UP BY MONDAY NIGHT AND WE SHOULD SEE ANOTHER CHILLY NIGHT WITH A FREEZE LIKELY AGAIN IN MUCH OF THE LAS VEGAS VALLEY. WINDS WILL BE LIGHTER THOUGH. ONE ISSUE FOR TEMPS NOT JUST MONDAY NIGHT BUT ALSO TUESDAY WILL BE INCREASING HIGH CLOUDS THAT ACCOMPANY A RIBBON OF ENERGY MOVING INTO NORTHERN NEVADA ON TUESDAY. MODEL CROSS SECTIONS ARE INCREDIBLY MOIST ABOVE 400 MB AND GIVEN THIS AND WEAK LOW-LEVEL WINDS...TEMPS WILL STAY ON THE CHILLY SIDE. I WOULD NOT BE SHOCKED TO SEE LAS VEGAS STAY IN THE 40S FOR A HIGH ON TUESDAY ESPECIALLY IF CLOUDS ARE THICK. .LONG TERM...RIDGING WILL BEGIN TO DECREASE BY WEDNESDAY AS THE NEXT WEATHER SYSTEM MOVES TOWARD THE WEST COAST. HEIGHTS DECREASE OVER THE AREA THROUGH FRIDAY AS BOTH THE GEM AND ECMWF MODELS PUSH MOISTURE AND A SLIGHTLY STRONGER SYSTEM OVER THE AREA THAN WHAT IS PORTRAYED BY THE GFS SOLUTION. IN EITHER SOLUTION...THE SYSTEM HAS FAIRLY LIMITED MOISTURE TO WORK WITH. HAVE MAINTAINED SLIGHT CHANCE POPS ACROSS THE NORTHERN TWO THIRDS OF THE CWA...PARTICULARLY OVER THE HIGHER TERRAIN. TEMPS SHOULD RISE A BIT AHEAD OF THE TROUGH ON THURSDAY WITH INCREASED MIXING AND THIS LOOKS TO BE OUR NEXT CHANCE AT SEEING NEAR TO ABOVE NORMAL HIGHS ESPECIALLY IF CLOUDS ARE NOT THICK. ZONAL FLOW IS FORECAST FOR FRIDAY AS THE SYSTEM MOVES EAST AND THEN DIFFERENCES START TO APPEAR WITH HANDLING THE NEXT POTENTIAL SYSTEM BY THE END OF THE WEEKEND AND BEYOND. DUE TO THESE DIFFERENCES HAVE ONLY MADE MINOR COSMETIC CHANGES TO THE FAR EXTENDED PERIOD. .AVIATION...FOR MCCARRAN...WITH INVERSION IN PLACE...LIGHT WINDS EXPECTED THROUGH THIS EVENING. AS FRONT MOVES CLOSER EXPECT SOUTHWEST WINDS TO DEVELOP TOWARD MORNING. SOME UNCERTAINTY AS TO EXACT TIME THIS WILL HAPPEN DUE TO WINDS ALOFT HAVING TO SCOUR THROUGH INVERSION. SOUTHWEST WINDS JUST ABOVE SURFACE WILL BE IN THE 15 TO 20 KT RANGE SO SOME SFC GUSTS OF 15 TO 20 KT ARE POSSIBLE PRIOR TO FRONTAL PASSAGE. THE COLD FRONT WILL PUSH THROUGH THE VALLEY SUNDAY AFTERNOON...PROVIDING WIND SHIFT TO WEST AND THEN NORTHWEST AT 10 TO 15 KTS WITH HIGHER GUSTS. FOR THE REST OF SOUTHERN NEVADA...NORTHWEST ARIZONA...AND SOUTHEAST CALIFORNIA...COLD FRONT TO MOVE ACROSS AREA OVERNIGHT AND THROUGH THE DAY TOMORROW WITH SOUTH TO SOUTHWEST WINDS AHEAD OF IT AND NORTHWEST TO NORTH WINDS BEHIND. WINDS WILL BE GUSTIEST NEAR THE FRONT WITH SOME GUSTS APPROACHING 20 KT. SCT-BKN CLOUDS WILL GENERALLY BE AOA 20K FT AHEAD OF THE FRONT BECOMING BKN-OVC BEHIND THE FRONT AS LOW AS 10K FEET. PRECIPITATION AND LOWER CIGS WILL BECOME MORE WIDESPREAD ACROSS THE AREA ALONG AND BEHIND THE FRONT. && .VEF WATCHES/WARNINGS/ADVISORIES... NV...NONE. AZ...NONE. CA...WIND ADVISORY FROM 1 AM TO 2 PM PST SUNDAY FOR CAZ523. && MORGAN/SALMEN/STACHELSKI/STAUDENMAIER HTTP://WEATHER.GOV/LASVEGAS
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LAS VEGAS NV 457 AM PST SAT NOV 27 2010 AZZ001>003-036-CAZ519>527-NVZ014>022-280100- 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- 457 AM PST SAT NOV 27 2010 /557 AM MST SAT NOV 27 2010/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST ARIZONA...CALIFORNIA AND SOUTHERN NEVADA. .DAY ONE...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. HOWEVER THE NEXT PACIFIC STORM WILL MOVE INTO THE SOUTHERN SIERRA BY LATE THIS MORNING AND THEN CROSS INTO NEVADA TONIGHT. THIS WILL RESULT IN LIGHT AMOUNTS OF SNOW ACROSS THE NORTHERN MOUNTAINS WITH LOCAL GUSTY WINDS...ESPECIALLY OVER THE CREST OF THE SOUTHERN SIERRA. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. HOWEVER THE PACIFIC STORM WILL CONTINUE TO MOVE ACROSS SOUTHERN NEVADA AND NORTHWEST ARIZONA ON SUNDAY WITH SCATTERED SHOWERS PRODUCING THE POSSIBILITY OF LIGHT SNOW ACCUMULATIONS OVER THE MOUNTAINS. COOLER AND DRIER AIR WILL THEN BE OVER THE DISTRICT MONDAY AND TUESDAY. LOCAL GUSTY WINDS WILL BE SEEN ACROSS THE SAN BERNARDINO DESERT ON SUNDAY WITH GUSTY NORTH WINDS EXPECTED DOWN THE COLORADO RIVER VALLEY ON MONDAY. ANOTHER PACIFIC STORM IS EXPECTED TO MOVE INTO THE SOUTHERN SIERRA AND THE NORTHERN MOUNTAINS LATE THURSDAY INTO FRIDAY WHICH WILL BRING ISOLATED SNOW SHOWERS TO THE AREA. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. HOWEVER, SPOTTERS ARE ENCOURAGED TO REPORT ANY SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
The national radar mosaic for the moment the first event began.
1 strong wind. Local standard time, as filed.
A park ranger at the Spring Mountain Ranch State Park reported that wind blew down a large 80 year old tree, blew several limbs out of other trees, and shook his house.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Nevada in 2010Every state in 2010This day in weather historyWarnings in Nevada, November 2010
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: 263167.