A storm system brought rain and snow to much of the Mojave Desert and southern Great Basin on the 2nd. The leftover moisture and colder air in the wake of the storm produced patchy dense fog on the 3rd and 4th.
Every event with a place to put it; 2 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 VEF wrote it up.
A storm system brought rain and snow to much of the Mojave Desert and southern Great Basin on the 2nd. The leftover moisture and colder air in the wake of the storm produced patchy dense fog on the 3rd and 4th.
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 Dec 2, 2:30 PM PST, 30 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LAS VEGAS NV 230 PM PST TUE DEC 2 2014 .SYNOPSIS...A WARM STORM SYSTEM WILL MOVE ACROSS THE AREA THROUGH THURSDAY BRINGING PERIODS OF RAIN AND HIGH ELEVATION SNOW. ANY SIGNIFICANT SNOW ACCUMULATIONS WILL BE ABOVE 9,000 FEET. THE PRIMARY IMPACT OF THIS STORM WILL BE SLICK TRAVEL CONDITIONS ON AREA ROADWAYS. ANOTHER SYSTEM MAY BRING A FEW SHOWERS TO PORTIONS OF THE AREA FROM LATE FRIDAY NIGHT INTO SATURDAY. && .SHORT TERM...TONIGHT THROUGH THURSDAY NIGHT. THE MOISTURE PLUME AHEAD OF A PACIFIC LOW CONTINUED TO PUSH NORTHEAST INTO THE AREA TODAY WITH RAINFALL RANGING FROM A TRACE IN THE LAS VEGAS VALLEY TO ONE HALF TO THREE QUARTERS OF AN INCH IN PORTIONS OF INYO COUNTY CALIFORNIA. THE MOISTURE WILL CONTINUE TO SPREAD EAST ACROSS THE REGION TONIGHT WITH MOST AREAS SEEING AT LEAST SOME LIGHT RAIN. MODEL QPF VARIES CONSIDERABLY WITH LOCATION AND AMOUNTS. SNOW WILL FALL GENERALLY ABOVE 8000-9000 FEET WITH HEAVY SNOW LIMITED TO ABOVE 9500 FEET. THE MAIN MOISTURE PLUME WILL SHIFT EAST OF THE AREA BY WEDNESDAY BUT PLENTY OF LOW LEVEL MOISTURE WILL LINGER LEADING TO ISOLATED TO SCATTERED LIGHT SHOWERS. THE MODELS CONTINUE TO INDICATE A SECONDARY MOISTURE PLUME AND WEAK SHORTWAVE MOVING THROUGH SOUTHWEST FLOW INTO THE AREA WEDNESDAY NIGHT INTO EARLY THURSDAY. HOWEVER...THE MODELS DIFFER ON THE PLACEMENT OF THIS MOISTURE PLUME AND RESULTING PRECIPITATION. EARLIER MODEL RUNS POINTED AT THE SOUTHEAST PART OF THE FORECAST AREA OR MOHAVE COUNTY...WHILE SOME NEWER RUNS HAVE SHIFTED THAT MORE OVER CLARK COUNTY. I MADE SOME MINOR CHANGES TO THE INHERITED FORECAST WITH FAIRLY HIGH POPS ACROSS SOUTHERN CLARK...MOHAVE AND EASTERN SAN BERNARDINO COUNTY WEDNESDAY NIGHT WITH SLIGHT CHANCE TO LOW CHANCE POPS NORTH AND WEST OF THERE. SOME LOWER LEVEL MOISTURE WILL LINGER THURSDAY KEEPING A SLIGHT CHANCE OF SHOWERS IN MUCH OF THE AREA WITH HIGHER CHANCES IN EASTERN MOHAVE COUNTY. A SHORTWAVE RIDGE WILL BUILD OVER THE AREA THURSDAY NIGHT LEADING TO DRY CONDITIONS. .LONG TERM...FRIDAY THROUGH MONDAY. HIGH PRESSURE OVER THE AREA WILL TRANSITION EAST DURING THE DAY AS A SHORTWAVE TROUGH OVER THE EASTERN PACIFIC APPROACHES THE COAST. THE TROUGH IS FORECAST TO MOVE THROUGH THE REGION SATURDAY...BUT AT THIS TIME IT LOOKS LIKE THIS SYSTEM WILL NOT BE TAPPING INTO ANY SIGNIFICANT MOISTURE SOURCE AND MOISTURE LOOKS TO BE RATHER LIMITED...HOWEVER THERE IS ENOUGH DYNAMICS ASSOCIATED WITH SYSTEM TO BRING AT LEAST A CHANCE OF SHOWERS TO THE REGION DURING THE DAY SATURDAY...MAINLY ACROSS SAN BERNARDINO...CLARK AND MOHAVE COUNTIES. THIS TROUGH WILL SHIFT EAST SATURDAY NIGHT WITH HIGH PRESSURE MOVING BACK INTO THE AREA SATURDAY NIGHT AND SUNDAY. THE MODELS INDICATE ANOTHER WEAK SHORTWAVE MOVING THROUGH THE AREA SUNDAY AFTERNOON...BUT AGAIN VERY LITTLE MOISTURE IS ASSOCIATED WITH IT AND DYNAMICS LOOKS EVEN WEAKER THAN THE PREVIOUS SYSTEM. BEYOND SUNDAY...MODELS CONTINUE TO SHOW A PROGRESSIVE PATTERN...BUT AT THIS TIME THESE SYSTEMS LOOK TO REMAIN WEAK AS THEY MOVE THROUGH THE REGION. TEMPERATURES LOOK TO REMAIN JUST A FEW DEGREES ABOVE NORMAL THROUGH THE EXTENDED PERIOD. && .AVIATION...FOR MCCARRAN...WINDS WILL REMAIN LIGHT AND VARIABLE THROUGH WEDNESDAY. A MOISTURE PLUME WILL CONTINUE TO STREAM INTO THE AREA TONIGHT LEADING TO A GOOD CHANCE OF RAIN AND LOWERING CEILINGS. CEILINGS ARE EXPECTED TO LOWER TO ABOUT 5 KFT EARLY THIS EVENING AND TO AROUND 3 KFT LATER THIS EVENING AND OVERNIGHT. ALTHOUGH THE MAIN MOISTURE PLUME AND BETTER RAIN CHANCES WILL SHIFT EAST WEDNESDAY THERE WILL STILL BE PLENTY OF LOW LEVEL MOISTURE LEADING TO ISOLATED SHOWERS AND CEILING MAINLY 3-5 KFT. THERE IS POTENTIAL FOR CEILINGS TO DROP BELOW 2 KFT IN THE 12Z-18Z WEDNESDAY TIME FRAME. FOR THE REST OF SOUTHERN NEVADA...NORTHWEST ARIZONA...AND SOUTHEAST CALIFORNIA...WINDS GENERALLY LIGHT THROUGH WEDNESDAY. ABUNDANT MOISTURE WILL LEAD TO WIDESPREAD RAIN AND LOW CEILINGS THROUGH TONIGHT. CEILINGS 3-5 KFT WILL BE COMMON BUT DOWN TO AROUND 1 KFT AT TIMES IN SOME HIGHER VALLEYS. ISOLATED TO SCATTERED SHOWERS ARE EXPECTED WEDNESDAY BUT DUE TO LINGERING LOW LEVEL MOISTURE...CEILINGS WILL REMAIN QUITE LOW. && .SPOTTER INFORMATION STATEMENT...SPOTTERS ARE ENCOURAGED TO REPORT ANY SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES TODAY THROUGH THURSDAY. && SHORT TERM/AVIATION...HARRISON LONG TERM...GORELOW FOR MORE FORECAST INFORMATION...SEE US ON OUR WEBPAGE: HTTP://WEATHER.GOV/LASVEGAS OR FOLLOW US ON FACEBOOK AND TWITTER
The national radar mosaic for the moment the first event began.
2 dense fog, 1 heavy rain. Local standard time, as filed.
Rain in the Las Vegas Valley contributed to 30 vehicle accidents with 18 minor injuries.
Dense fog caused the Red Rock Scenic Loop to be closed for nearly 24 hours.
Dense fog at McCarran Airport in Las Vegas caused some flights to be cancelled and many more to be delayed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Nevada in 2014Every state in 2014This day in weather historyWarnings in Nevada, December 2014
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: 545141, 545143, 545144.