A storm system which dropped light rain and snow led to favorable conditions for locally dense fog the next morning.
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 VEF wrote it up.
A storm system which dropped light rain and snow led to favorable conditions for locally dense fog the next morning.
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 17, 2:36 AM PST, 3 hours 49 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LAS VEGAS NV 236 AM PST WED DEC 17 2014 .SYNOPSIS...A WEATHER SYSTEM WILL MOVE ACROSS SOUTHERN NEVADA AND SURROUNDING AREAS TODAY BRINGING WIDESPREAD RAIN AND MOUNTAIN SNOW TO THE REGION. IMPROVING CONDITIONS ARE EXPECTED THURSDAY AND FRIDAY. A FEW SHOWERS WILL BE POSSIBLE ACROSS PARTS OF THE AREA OVER THE WEEKEND FOLLOWED BY DRY AND WARMER WEATHER NEXT WEEK. && .SHORT TERM...THROUGH THURSDAY NIGHT. THE FIRST SHORTWAVE IS PUSHING EAST OF THE AREA AND THE NEXT... STRONGER SYSTEM HAS BEGUN MOVING INTO CALIFORNIA PER SATELLITE DATA AND RADAR RETURNS OUT OF HANFORD, SAN DIEGO AND EDWARDS. MODERATE PRECIPITATION HAS BEEN CONFINED THE AREAS WEST OF THE SIERRA DOWN THROUGH LOS ANGELES WHILE ONLY LIGHT SHOWER ACTIVITY HAS BEEN NOTED WITHIN THE LAS VEGAS CWA WITH SURFACE OBSERVATIONS REPORTING A FEW HUNDREDTHS HERE AND THERE. THUS, THE WINTER WEATHER ADVISORIES ARE NOT PANNING OUT AS OF YET BUT REALLY THE BULK OF MOISTURE HAS YET TO ARRIVE AND BY THE END OF THE DAY, SNOW TOTALS ARE EXPECTED TO REACH NEAR OR EXCEED AT LEAST LOW END ADVISORY LEVELS. LOOKING AT THE VARIOUS MODEL QPF FORECASTS, PRECIP BEGINS TO MOVE INTO THE WESTERN REGIONS OF THE FORECAST AREA AFTER 4 AM THIS MORNING AND THEN SPREADS EAST THROUGH THE DAY. THE LATEST HI-RES RAPID REFRESH MODEL AGREES WITH THIS SCENARIO AS DOES THE OTHER LOCAL HIGHER RESOLUTION MODELS. PRECIPITATION TOTALS WILL BE LOWEST ACROSS THE NORTHERN ZONES WHILE THE SOUTHERN AREAS INCLUDING SOUTHERN INYO, SOUTHERN NYE, CLARK, SAN BERNARDINO AND MOHAVE COUNTIES COULD SEE ANYWHERE FROM .20-.40 INCHES OF RAIN BY THE END OF THE AFTERNOON ON THURSDAY. TEMPERATURES WILL REMAIN COOLER THAN NORMAL BOTH TODAY AND THURSDAY WITH LITTLE DIURNAL FLUCTUATION EXPECTED TODAY WITH THE WARMER MORNING LOWS AND ABUNDANT CLOUD COVER EXPECTED THROUGH THE DAY. .LONG TERM...FRIDAY THROUGH TUESDAY MEDIUM RANGE MODELS SIMILAR TO 24 HOURS AGO INDICATING MOST OF THE ENERGY ASSOCIATED WITH NEXT SHORTWAVE TROUGH WILL AFFECT CENTRAL NEVADA NORTHWARD FRIDAY NIGHT INTO SATURDAY. WITH THAT SAID, LEFT IN SLIGHT CHANCE POPS FROM NORTHERN INYO COUNTY EASTWARD TO NORTHERN LINCOLN COUNTY TO ACCOUNT FOR ANY POTENTIAL SOUTHWARD SHIFT. SUNDAY THROUGH TUESDAY THE LONGWAVE PATTERN WILL BE DOMINATED BY A STRONG RIDGE ALONG THE WEST COAST WITH A TROUGH EAST OF THE ROCKIES. SOUTHERN GREAT BASIN/MOJAVE DESERT WILL LIE UNDER A DRY NORTHWEST FLOW. SURFACE HIGH DEVELOPING OVER THE NORTHERN GREAT BASIN WILL LEAD TO AN INCREASE IN NORTH BREEZES DOWN THE COLORADO RIVER VALLEY SOUTH OF HOOVER DAM SUNDAY-TUESDAY. && .AVIATION...FOR MCCARRAN...LOW LEVEL MOISTURE AND SHOWER ACTIVITY WILL BE A CONCERN TODAY IN AND AROUND THE TERMINAL. CIGS AROUND 5K ARE EXPECTED BUT RAIN SHOWERS MOVING INTO CLARK COUNTY LATER THIS MORNING COULD LOWER CIGS BETWEEN 1500 AND 3000 FEET. LOW CLOUDS MAY LINGER INTO WEDNESDAY EVENING. GENERALLY LIGHTS WINDS ARE EXPECTED TODAY. FOR THE REST OF SOUTHERN NEVADA...NORTHWEST ARIZONA...AND SOUTHEAST CALIFORNIA...A WEATHER SYSTEM WILL MOVE ACROSS THE REGION TODAY BRINGING WIDESPREAD PRECIPITATION...LOW CEILINGS AND MOUNTAIN OBSCURATIONS TO MUCH OF THE AREA. MVFR AND IFR CONDITIONS WILL DEVELOP FROM WEST TO EAST TODAY THEN PERSIST THROUGH THE AFTERNOON. LOW CIGS AND POSSIBLE AREAS OF FOG WILL LINGER WEDNESDAY NIGHT BEFORE CLEARING THURSDAY. && .SPOTTER INFORMATION STATEMENT...SPOTTERS ARE ENCOURAGED TO REPORT ANY SIGNIFICANT WEATHER CONDITIONS TODAY THROUGH THURSDAY ACCORDING TO STANDARD OPERATING PROCEDURES. && SALMEN/PIERCE 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.
1 dense fog. Local standard time, as filed.
A spotter reported dense fog along Highway 62 between Morongo Valley and Yucca Valley.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in California in 2014Every state in 2014This day in weather historyWarnings in California, 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: 545758.