Monsoon moisture fueled another round of thunderstorms over northwest Arizona.
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.
Monsoon moisture fueled another round of thunderstorms over northwest Arizona.
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 Jul 10, 11:22 AM MST, 38 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LAS VEGAS NV 1122 AM PDT THU JUL 10 2014 .SYNOPSIS...ABUNDANT MOISTURE WILL COMBINE WITH AN UPPER LEVEL DISTURBANCE TO GENERATE ISOLATED TO SCATTERED THUNDERSTORMS TODAY ACROSS MUCH OF THE AREA. DRIER AIR WILL PUSH IN BEHIND THE DISTURBANCE...LIMITING ANY THUNDERSTORM CHANCES TO PORTIONS OF MOHAVE COUNTY ARIZONA FOR THE FRIDAY THROUGH SUNDAY TIME FRAME. TEMPERATURES WILL WARM TO ABOVE NORMAL LEVELS OVER THE WEEKEND DUE TO THE DRIER AIR. && .UPDATE... A QUICK UPDATE TO THE FORECAST FOR THE ISSUANCE OF A FLASH FLOOD WATCH. UPPER LEVEL FORCING...PLENTIFUL MOISTURE AND THE POTENTIAL FOR CONVECTIVE CELLS TO PRODUCE TORRENTIAL RAINFALL AND TRAIN OR REDEVELOP OVER MANY AREAS...ESPECIALLY THE HIGHER TERRAIN...WARRANT THE ISSUANCE OF THE WATCH. A FEW STRONGER CELLS CAN ALSO PRODUCE STRONG GUSTY WINDS AND HAIL. ALSO UPDATED THE FORECAST TO LOWER AREAWIDE TEMPERATURES A BIT. EXTENSIVE CLOUD COVER WILL LIMIT WARMING FOR MUCH OF THE AREA. AREAS ACROSS OUR SOUTHERN FORECAST AREA WILL CLEAR A BIT. THOSE THAT HAVE EXPERIENCED RAINFALL THIS MORNING WILL WARM BUT SLOWLY. && .PREV UPDATE... 839 AM PDT THU JUL 10 2014 A MESOSCALE CONVECTIVE VORTEX IS EVIDENT ON BASE REFLECTIVITY OVER LAKE MEAD AND IS MOVING WEST TOWARD THE LAS VEGAS VALLEY. SHOWERS AND ISOLATED THUNDERSTORMS ARE DEVELOPING AHEAD OF AND TO THE NORTH OF THIS MCV. I HAVE INCREASED AND EXPANDED POPS FOR THE REMAINDER OF THE MORNING FOR MUCH OF SOUTHERN NEVADA AND SOUTHEAST CALIFORNIA. AN UPPER LEVEL JET MAX COMING UP FROM ARIZONA PUSHING NORTHWARD INTO SOUTHERN NEVADA WILL CONTINUE TO PROVIDE LIFT AND CONVECTIVE ACTIVITY...PARTICULARLY ACROSS LINCOLN AND MOHAVE COUNTIES DURING THE AFTERNOON HOURS. && .PREV DISCUSSION... 245 AM PDT THU JUL 10 2014 .SHORT TERM...SATELLITE LOOPS SHOWED WHAT WAS A FAIRLY WELL DEFINED CIRCULATION OVER SOUTHERN CALIFORNIA STARTING TO BECOME AN OPEN WAVE AND ABOUT TO START MOVING EAST. MODELS ALL DEPICT THIS FEATURE FAIRLY WELL AND INDICATE QUITE A BIT OF MOISTURE OUT AHEAD OF IT. LOOKS LIKE MUCH OF OUR AREA WILL BE MOSTLY CLOUDY A GOOD PORTION OF THE DAY. THE SHORTWAVE WILL CONTINUE TO WEAKEN AND MOVE EAST/NORTHEAST TODAY WHICH WILL HELP GENERATE ISOLATED TO SCATTERED THUNDERSTORMS ACROSS MAINLY SOUTHEAST NEVADA AND NORTHWEST ARIZONA AND EASTERN SAN BERNARDINO COUNTY. MODELS DIFFER IN THE PLACEMENT OF THE BEST INSTABILITY AND HIGHEST CAPE WITH THE NAM12 CONTINUING TO BE FARTHER WEST. BASED ON THE ECMWF AND GFS THE HIGHEST COVERAGE OF THUNDERSTORMS WILL BE ACROSS MOHAVE AND EASTERN LINCOLN COUNTIES AND PERHAPS EASTERN CLARK COUNTY. BASED ON STABILITY AND CAPE PROGS THE NAM12 IS SHOWING THE BEST THUNDERSTORM POTENTIAL OVER EASTERN SAN BERNARDINO COUNTY. WE HAVE PRETTY HIGH POPS IN ALL THOSE LOCATIONS...FAVORING NORTHERN MOHAVE COUNTY. LOOKS LIKE WINDS MAY BE STRONG ENOUGH BY THIS AFTERNOON FOR A DECENT STORM MOTION FROM SOUTH TO NORTH WHICH SHOULD LIMIT FLASH FLOODING TO SOME EXTENT DESPITE PRETTY HIGH PRECIPITABLE WATER VALUES. THE SHORTWAVE WILL KEEP THUNDERSTORM CHANCES GOING INTO THIS EVENING BEFORE RACING INTO UTAH BRINGING AN END TO ANY STORMS OVERNIGHT. MUCH DRIER AND MORE STABLE AIR WILL MOVE IN BEHIND THE SHORTWAVE AS SOUTHWEST FLOW DEVELOPS. I KEPT A SLIGHT CHANCE OF AFTERNOON THUNDERSTORMS OVER THE HIGHER ELEVATIONS OF NORTHERN MOHAVE COUNTY SATURDAY AND SUNDAY AS THE NAM12 CONTINUES TO HANG ON TO SOME MOISTURE AND SLIGHT INSTABILITY. TEMPERATURES TODAY MAY BE BELOW NORMAL AGAIN IN MANY AREAS WITH ALL THE CLOUD COVER BUT SHOULD WARM UP TO NORMAL BY SATURDAY. .LONG TERM...SUNDAY THROUGH WEDNESDAY...BY SUNDAY MORNING HIGH PRESSURE WILL BE SHIFTING BACK WEST TOWARDS THE NEVADA-UTAH STATE LINE. THIS WILL CUT OFF THE DRY SOUTHWESTERLY FLOW AND OPEN THE DOOR FOR MOISTURE TO FILTER IN FROM THE SOUTHEAST. IT DOESN'T LOOK LIKE A SIGNIFICANT MOISTURE WILL BE IN PLACE TO PROVIDE MUCH OF A THREAT OF THUNDERSTORMS SUNDAY. HOWEVER...I HAVE LEFT IN A SLIGHT CHANCE OVER MOST OF MOHAVE COUNTY AND GHOST POPS OVER SOUTHERN SAN BERNARDINO COUNTY. LAST NIGHT MODELS WERE IN DECENT AGREEMENT THAT A DECENT SURGE OF MONSOON MOISTURE AND WAVE WOULD PUSH UP FROM THE SOUTH-SOUTHEAST FOR MONDAY. WITH THE LATEST 00Z RUNS BOTH THE ECMWF AND GFS HAVE SLOWED THIS DOWN BY AROUND 6-12 HOURS AND HAVE PUSHED THE WAVE A BIT FURTHER WEST OVER THE SOCAL COAST. AM NOT READY TO COMPLETELY BUY INTO ANY GIVEN SOLUTION SINCE THE PREVIOUS [12Z] ECMWF RUN WAS VERY AGGRESSIVE WITH THE MOISTURE...WAVE..AND PRECIP FOR MONDAY. FOR NOW HAVE INCREASED THUNDERSTORM CHANCES OVER THE SOUTHEASTERN THIRD OF THE FORECAST AREA SINCE THERE IS DECENT AGREEMENT THERE. WITH THE OVERALL SHOWER TIMING TUESDAY MAY HAVE MORE WIDESPREAD/SIGNIFICANT THUNDERSTORM COVERAGE. AS A RESULT I HAVE INCLUDED AT LEAST A SLIGHT CHANCE OF THUNDERSTORMS EVERYWHERE TUESDAY. FOR WEDNESDAY AND BEYOND...THE LATEST GUIDANCE INDICATES THAT HIGH PRESSURE WILL CONTINUE TO SHIFT EAST INTO NORCAL WHICH WOULD RESULT IN SOMEWHAT DRIER NORTHERLY FLOW ACROSS THE AREA. HOWEVER MODELS AREN'T TOO AMBITIOUS ABOUT SCOURING OUT THE MOISTURE AND SO I'VE LEFT IN FAIRLY WIDESPREAD POPS FOR THE MOMENT. AS FOR TEMPERATURES...SUNDAY WILL BE THE WARMEST...WITH TEMPERATURES RUNNING A FEW DEGREES ABOVE NORMAL. THE NEAR TO SLIGHTLY BELOW NORMAL TEMPERATURES ARE EXPECTED THROUGH THE REMAINDER OF THE PERIOD AS MOISTURE AND THUNDERSTORMS RETURN TO THE REGION. PLEASANT RELIEF FOR THE PERIOD OF TIME WHERE WE [ON AVERAGE] EXPERIENCE THE WARMEST TEMPERATURES OF THE YEAR. && .AVIATION...FOR MCCARRAN...WINDS WILL BE LIGHT AND VARIABLE THIS MORNING BEFORE TRANSITIONING MORE SOUTHWESTERLY AROUND 10 KTS DURING THE AFTERNOON. THE EXCEPTION WILL BE THE POTENTIAL FOR GUSTY AND ERRATIC WINDS DUE TO THUNDERSTORMS AND OUTFLOW. BROKEN CEILINGS ABV 10 KFT MUCH OF TODAY. THUNDERSTORMS MOSTLY LIKELY TO AFFECT MORMON MESA AND PEACH SPRINGS CORRIDORS THURSDAY. CLEARING WILL TAKE PLACE LATER TONIGHT WITH DRIER AND MORE STABLE AIR IN PLACE FOR THE FRIDAY THROUGH SUNDAY TIME FRAME. FOR THE REST OF SOUTHERN NEVADA...NORTHWEST ARIZONA...AND SOUTHEAST CALIFORNIA...THE GREATEST THUNDERSTORM COVERAGE WILL BE OVER SOUTHEAST NEVADA AND NORTHWEST ARIZONA. TODAY STORMS WILL LEAD TO GUSTY AND ERRATIC WINDS, WHILE AWAY FROM STORMS WIND SPEEDS GENERALLY SOUTHERLY BETWEEN 5 AND 15 KTS. && .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. && UPDATE: PADDOCK/CZYZYK SHORT TERM/AVIATION: HARRISON LONG TERM: WOLCOTT FOR MORE FORECAST INFORMATION...SEE US ON OUR WEBPAGE: HTTP://WEATHER.GOV/LASVEGAS OR FOLLOW US ON FACEBOOK AND TWITTER
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LAS VEGAS NV 347 AM PDT THU JUL 10 2014 AZZ001>003-036-CAZ519>527-NVZ014>022-110700- 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- 347 AM PDT THU JUL 10 2014 /347 AM MST THU JUL 10 2014/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST ARIZONA...CALIFORNIA AND SOUTHERN NEVADA. .DAY ONE...TODAY AND TONIGHT ABUNDANT MOISTURE WILL COMBINE WITH AN UPPER LEVEL DISTURBANCE TO GENERATE ISOLATED TO SCATTERED THUNDERSTORMS TODAY INTO THIS EVENING ACROSS MUCH OF THE AREA. THE BEST CHANCES OF STORMS LOOKS TO BE OVER MOHAVE AND EASTERN LINCOLN COUNTIES. SOME STORMS WILL PRODUCE HEAVY RAIN. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY DRIER AIR WILL PUSH IN FROM THE SOUTHWEST FRIDAY LIMITING ANY THUNDERSTORM CHANCES TO NORTHERN MOHAVE COUNTY FOR FRIDAY AND SATURDAY. MONSOON MOISTURE IS EXPECTED TO START TO INCREASE AGAIN FROM THE SOUTHEAST SUNDAY AND MOST OF THE AREA WILL SEE A CHANCE OF THUNDERSTORMS MONDAY THROUGH WEDNESDAY. .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 Las Vegas radar (KESX), 82 km away, was scanning. The volume nearest the first event began at 19:01 UTC.
4 flash flood, 1 thunderstorm wind. Local standard time, as filed.
Several roads were flooded and impassable in Meadview.
A fruit stand was destroyed and a window was blown out of a business.
Temple Bar Access Road was flooded between mile markers 22 and 23.
Water 12-18 inches deep flowed over Pierce Ferry Road at Archibald Wash.
At least six inches of flowing water and rocks crossed Willows Ranch Road at Willow Creek.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arizona in 2014Every state in 2014This day in weather historyWarnings in Arizona, July 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: 536732, 536735, 536739, 536745, 536746.