A push of monsoon moisture fueled thunderstorms over the Mojave Desert. Some storms produced severe weather and flash flooding.
Every event with a place to put it. 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 push of monsoon moisture fueled thunderstorms over the Mojave Desert. Some storms produced severe weather and flash flooding.
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 Aug 11, 6:40 PM PST, 1 hour earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LAS VEGAS NV 740 PM PDT MON AUG 11 2014 .SYNOPSIS...MONSOON MOISTURE PUSHING IN FROM THE SOUTHEAST WILL RESULT IN INCREASED THUNDERSTORM COVERAGE THROUGH WEDNESDAY. DRIER AIR WILL ONCE AGAIN GRADUALLY MOVE IN FROM THE SOUTHWEST STARTING THURSDAY WITH THUNDERSTORM CHANCES CONFINED TO MOHAVE COUNTY BY FRIDAY. && .UPDATE...FORECAST TRENDS LOOK GOOD TONIGHT BASED ON RADAR TRENDS AND HIGH RESOLUTION MODEL OUTPUT. NO CHANGES PLANNED AT THIS TIME. && .PREV DISCUSSION... 325 PM PDT MON AUG 11 2014 .SHORT TERM...THROUGH TUESDAY NIGHT... TAIL END OF LINE OF STORMS WHICH WAS OVER INYO/ESMERALDA COUNTY THIS MORNING DID SHIFT EASTWARD AND DID AFFECT SRN NYE/CLARK COUNTIES THIS AFTERNOON. THOSE STORMS NOW MOVING INTO LINCOLN COUNTY. ACTIVITY IS GETTING GOING OVER MOHAVE COUNTY WITH MORE STORMS SET TO ENTER MOHAVE COUNTY FROM COCONINO/YAVAPAI COUNTIES. HRRR SUGGEST THE NORTHERN TWO-THIRDS OF MOHAVE COUNTY WILL REMAIN THE MOST ACTIVE FOR THE NEXT 3-4 HOURS THEN SHIFTING NORTHWARD ACROSS NORTHEAST CLARK AND LINCOLN COUNTIES THIS EVENING. GUSTS OF 40-50 MPH...SMALL HAIL AND BRIEF HEAVY RAIN POSSIBLE WITH STORMS. FOR TUESDAY...MODELS MORE OR LESS IN GOOD AGREEMENT SHOWING AN INVERTED TROUGH MOVING EAST ACROSS SOUTHERN ARIZONA TONIGHT AND INTO SOUTHWEST ARIZONA LATE TUESDAY AFTERNOON. INVERTED TROUGH THEN ENCOUNTERS A MORE WESTERLY FLOW AND LIFT NORTH ACROSS WESTERN ARIZONA TUESDAY NIGHT/WEDNESDAY. DUE TO ADDITIONAL DYNAMICS DECIDED TO ISSUE A FLASH FLOOD WATCH FOR THE NORTHWEST DESERT AND PLATEAU OF MOHAVE COUNTY FROM 11 AM MST - 10 PM MST TUESDAY. TOMORROW WE WILL BE LOOKING AT THE NEED OF EXTENDING THE WATCH INTO WEDNESDAY IF MODELS STAY CONSISTENT. .LONG TERM...WEDNESDAY THROUGH SUNDAY...THE SYNOPTIC PATTERN FEATURES A LOW PRESSURE TROUGH OVER THE PACIFIC NW WEDNESDAY THAT IS FORECAST TO MOVE INTO THE NORTHERN GREAT BASIN THURSDAY AND FRIDAY. THE UPPER LEVEL FLOW BECOMES SOLIDLY WEST TO SOUTHWEST AS THE WEEK WEARS ON. THE AFFECT OF THIS LARGE SCALE FEATURE ON SENSIBLE WEATHER WITHIN THE FORECAST AREA IS TO BRING A DECREASING TREND IN THUNDERSTORM COVERAGE. WEDNESDAY HAS THE BEST POTENTIAL FOR SCATTERED THUNDERSTORMS ACROSS A WIDER AREA INCLUDING LINCOLN, CLARK, MOHAVE AND EASTERN SAN BERN COUNTIES. BEYOND WEDNESDAY, RAPID DRYING TAKES PLACE IF THE GFS VERIFIES BUT COULD BE SOMEWHAT SLOWER PER THE ECMWF. MAINTAINED A MENTION OF STORMS IN MOHAVE COUNTY BOTH THURSDAY AND FRIDAY BEFORE DRYING THEM OUT COMPLETELY OVER THE WEEKEND. TEMPERATURES WILL GENERALLY BE BELOW NORMAL MID TO LATE IN THE WEEK THEN BECOME SEASONAL OVER THE WEEKEND. .AVIATION...FOR MCCARRAN...OUTFLOW WINDS FROM SURROUNDING STORMS WILL CONTINUE TO AFFECT LAS VEGAS VALLEY TERMINALS INTO THE EVENING HOURS. LOOKS LIKE WINDS WILL FAVOR A NORTHERLY DIRECTION FOR SEVERAL HOURS BEFORE TRANSITION BACK TO OUR TYPICAL SOUTH/SOUTHWEST DIRECTION WITH SPEEDS OF 7-11 KTS. CONVECTION SHOULD IMPACT MAINLY THE BEATTY...MORMON MESA AND PEACH SPRINGS CORRIDORS THIS EVENING. THERE WILL BE ANOTHER CHANCE OF SHOWERS OR TSTORM WITHIN THE VICINITY OF THE TERMINAL TUESDAY...WHICH COULD BRING GUSTY AND ERRATIC WINDS. FOR THE REST OF SOUTHERN NEVADA...NORTHWEST ARIZONA...AND SOUTHEAST CALIFORNIA...SCATTERED-BROKEN CLOUDS ALONG WITH ISOLATED TO SCATTERED THUNDERSTORMS ACROSS ALL OF SOUTHEAST CALIFORNIA...SOUTHERN NEVADA AND NORTHWEST ARIZONA THIS EVENING AND AGAIN TUESDAY. WINDS WILL FAVOR TYPICAL DIURNAL WIND PATTERNS THROUGH TUESDAY...EXCEPT NEAR THUNDERSTORMS. .SPOTTER INFORMATION STATEMENT...SPOTTERS SHOULD REPORT INSTANCES OF FLASH FLOODING...STRONG GUSTY WINDS...HAIL...AND BLOWING DUST TODAY THROUGH TUESDAY. && UPDATE...MORGAN SHORT TERM/AVIATION...PIERCE LONG TERM...SALMEN FOR MORE FORECAST INFORMATION...SEE US ON OUR WEBPAGE: HTTP://WEATHER.GOV/LASVEGAS OR FOLLOW US ON FACEBOOK AND TWITTER
The Las Vegas radar (KESX), 62 km away, was scanning. The volume nearest the first event began at 03:38 UTC.
2 flash flood, 1 lightning, 1 thunderstorm wind. Local standard time, as filed.
Lightning caused a tree fire and also struck a power pole, causing a power outage which, along with the rain, contributed to a multi-vehicle accident which injured one person (indirect).
Over six inches of water flowed over Lakeshore Road north of the Lake Mead National Recreation Area entrance, forcing the road to be closed.
Thunderstorm winds damaged floating docks at the Las Vegas Boat Harbor.
Rocks and mud flowed down Isabel Street at Robinson Lane.
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, August 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: 538856, 538857, 538858, 538859.