The first seasonal push of monsoon moisture fueled an outbreak of thunderstorms across the Mojave Desert and southern Great Basin. Many 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.
The first seasonal push of monsoon moisture fueled an outbreak of thunderstorms across the Mojave Desert and southern Great Basin. Many 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 Jul 6, 9:27 AM MST, 4 hours 25 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LAS VEGAS NV 927 AM PDT SUN JUL 6 2014 .SYNOPSIS...MOISTURE WILL REMAIN ACROSS THE REGION RESULTING IN A CHANCE OF THUNDERSTORMS FOR MOST OF THE WEEK. A FEW STORMS COULD PRODUCE VERY HEAVY RAIN LEADING TO LOCALIZED FLASH FLOODING. && .UPDATE... THIS MORNINGS MESOSCALE ANALYSIS SHOWS A CHAOTIC AND UNUSUAL SITUATION OVER THE FORECAST AREA. AN UPPER LEVEL SHORTWAVE OVER SOUTHEASTERN CALIFORNIA HAS BEEN NEARLY STATIONARY FOR THE PAST 24 HOURS. IT HAS SHIFTED TO THE NORTH SLIGHTLY OVER THE LAST 12 HOURS. THIS IS THE PRIMARY FORCING MECHANISM FOR STORMS BOTH YESTERDAY AND TODAY. THE NORTHWARD SHIFT IS LIKELY TO RESULT IN A MAJOR THREAT FOR THUNDERSTORMS FROM CENTRAL INYO TO SOUTHERN LINCOLN AND THEN INTO NORTHERN MOHAVE COUNTIES IN AN ARC. ALSO TROUBLING IS THE MID-LEVEL DRY PUNCH SEEN ON WATER VAPOR IMAGERY THAT IS LIKELY TO AID CONVECTIVE DEVELOPMENT. THE CLOUD SHIELD OVER CENTRAL NEVADA AND INYO COUNTY IS CREATING SOME UNCERTAINTY IN EXACTLY WHERE AND WHEN CONVECTION WILL BEGIN TO FIRE. THE MOST LIKELY AREA IS JUST ON THE SOUTHERN EDGE OF THAT CLOUD SHIELD WHERE INSTABILITY AND THE DRY AIR AT MID-LEVELS IS MAXIMIZED. THIS MEANS THAT DEATH VALLEY...THE NNST AND AREAS NORTH OF LAS VEGAS WILL SEE THE GREATEST THREAT FOR FLASH FLOODING THIS AFTERNOON. ONLY A FEW MONOR TWEAKS TO THE FORECAST ARE BEING MADE THISM MORNING. WE ANTICIPATE HAVING AN ABBREVIATED AFTERNOON FORECAST PACKAGE TO FOCUS ON THE CONVECTION AND FLASH FLOOD THREATS. && .AVIATION...FOR MCCARRAN...SOUTH WIND WILL CONTINUE INTO MID MORNING BEFORE SHIFTING MORE EAST-SOUTHEAST FOR THE REST OF THE DAY. SCT TO BKN CONDITIONS FROM LATE MORNING THROUGH TONIGHT WITH THE CEILING STAYING MAINLY ABV 5 KFT. THUNDERSTORM DEVELOPMENT IS EXPECTED OVER THE SPRING AND SHEEP MOUNTAINS TO THE WEST AND NORTH OF THE TERMINAL. THOSE STORMS WILL LIKELY STAY AWAY FROM THE AIRPORT. LATER IN THE AFTERNOON...WE MAY SEE STORMS FROM NORTHERN MOHAVE...CLARK AND NYE COUNTIES AFFECTING BOTH THE MORMON MESA AND BEATTY APPROACH CORRIDORS. FOR THE REST OF SOUTHERN NEVADA...NORTHWEST ARIZONA...AND SOUTHEAST CALIFORNIA...ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS ACROSS ENTIRE AREA TODAY AND TONIGHT. ERRATIC AND GUSTY WINDS NEAR STORMS ALONG WITH CEILINGS DOWN TO 5-7 KFT WITH STRONGER STORMS. && .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. && .PREV DISCUSSION... /ISSUED 347 AM PDT SUN JUL 6 2014/ .SHORT TERM...THROUGH TUESDAY EVENING... RADAR SHOWING ISOLATED SHOWERS OVER SOUTHERN NYE COUNTY WHICH SHOULD CONTINUE TO SLOWLY DRIFT WEST ACROSS INYO/ESMERALDA COUNTY LATER THIS MORNING. ALSO...MONITORING SOME ACTIVITY OVER NORTH CENTRAL ARIZONA WHICH IS DRIFTING WEST INTO MOHAVE COUNTY. AN INVERTED TROUGH OVER SOUTHERN CALIFORNIA/SOUTHERN NEVADA THAT HAS BEEN ACTING AS THE TRIGGER FOR CONVECTION PROGGED TO CONTINUE SLOWLY SHIFTING NORTH TODAY. THAT WILL PLACE INYO AND ESMERALDA COUNTY UNDER ADDITIONAL FORCING TODAY SO HAVE INCREASED POPS IN THOSE AREAS. AWAY FROM THE INVERTED TROUGH CONVECTIVE INITIATION WILL BE DRIVEN BY HEATING. LOOK FOR STORMS TO IGNITE OVER THE HIGHER TERRAIN BY LATE MORNING WITH OUTFLOW BOUNDARIES BECOMING THE FOCUS FOR CONVECTIVE INITIATION IN THE VALLEYS THIS AFTERNOON AND TONIGHT. A FEW STORMS COULD PRODUCT BETWEEN ONE AND ONE AND HALF INCHES OF RAIN IN LESS THAN HOUR. DID CONSIDER THE NEED FOR A FLASH FLOOD WATCH TODAY DUE TO HIGHER THAN NORMAL PW VALUES BUT EXPECT THOSE VERY HEAVY RAIN PRODUCING STORMS TO STILL BE ISOLATED. MOISTURE WILL REMAIN ACROSS THE AREA ON MONDAY AND TUESDAY FOR REPEAT OF MAINLY AFTERNOON AND EVENING THUNDERSTORMS. TEMPERATURES DEPEND OF CLOUDS AND STORMS BUT OVERALL LOOKING FOR NEAR NORMAL DAYTIME HIGHS WITH ABOVE NORMAL LOWS. ONLY SIGNIFICANT WIND EXPECTED WILL BE THOSE NEAR THUNDERSTORMS. .LONG TERM...WEDNESDAY THROUGH SATURDAY...THE LATEST GUIDANCE SEEMS TO HAVE COME TO SOME AGREEMENT ON A GENERAL EVOLUTION OF THE PATTERN FROM MIDWEEK TO THE WEEKEND. THE LATEST CONSENSUS INDICATES MONSOON MOISTURE WILL REMAIN ACROSS THE AREA WEDNESDAY FOR A CONTINUATION OF ISOLATED TO SCATTERED DAILY SHOWERS AND THUNDERSTORMS. BY WEDNESDAY NIGHT AN INVERTED TROUGH /SHORTWAVE/ IS PROJECTED TO SLIDE NORTHWEST THROUGH SOUTHERN ARIZONA AND REACH OUR AREA FOR THURSDAY. WITH THIS FEATURE SUPPLYING ADDITIONAL MOISTURE AND FORCING...HAVE INCREASED POPS ACROSS THE ENTIRE CWA. THERE ARE STILL SOME SLIGHT TIMING DIFFERENCES BETWEEN THE MODELS BUT MAY HAVE TO INCREASE POPS EVEN MORE IN THE COMING DAYS IF THIS TREND CONTINUES. BEHIND THIS WAVE, GUIDANCE HINTS AT MORE OF A SOUTHWEST FLOW HEADING INTO THE WEEKEND. THIS WOULD REDUCE THE MOISTURE AND LIMIT IF NOT ELIMINATE THUNDERSTORM CHANCES FOR MUCH OF THE AREA. HAVE TRIMMED BACK POPS FRIDAY AND SATURDAY...WITH JUST ISOLATED CHANCES ACROSS HIGHER ELEVATIONS SATURDAY AFTERNOON AND EVENING. AS FOR TEMPS...COOLER THROUGH MUCH OF THE WEEK WITH THE MONSOON MOISTURE AROUND...THEN EDGING UPWARD FOR THE FIRST HALF OF THE WEEKEND. && UPDATE: LERICOS PREVIOUS: PIERCE/PADDOCK 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 444 AM PDT SUN JUL 6 2014 AZZ001>003-036-CAZ519>527-NVZ014>022-070700- 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- 444 AM PDT SUN JUL 6 2014 /444 AM MST SUN JUL 6 2014/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST ARIZONA...CALIFORNIA AND SOUTHERN NEVADA. .DAY ONE...TODAY AND TONIGHT ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS ARE POSSIBLE ACROSS THE REGION TODAY. LOCALIZED HEAVY RAIN AND POTENTIAL FLASH FLOODING WILL BE THE MAIN HAZARD. IF YOU ENCOUNTER A FLOODED ROADWAY, TURN AROUND, DON'T DROWN. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY LOCALLY HEAVY RAINFALL FROM THUNDERSTORMS WILL CONTINUE TO BE THE WEATHER HAZARD THROUGH MUCH OF THE COMING WEEK AS MOISTURE REMAINS IN PLACE ACROSS THE SOUTHERN GREAT BASIN AND MOJAVE DESERT. .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.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
827 AM PDT SUN JUL 06 2014
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0320 PM FLASH FLOOD SW SHOSHONE 35.96N 116.27W
07/05/2014 INYO CA PARK/FOREST SRVC
PARK RANGER REPORTED THAT SHERRIFFS OFFICE CLOSED OFF
PARTS OF HIGHWAY 178 NEAR SHOSHONE DUE TO FLOODING. TIME
ESTIMATED FROM RADAR.
&&
TLERICOSPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
145 PM PDT SUN JUL 06 2014
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0310 PM FLASH FLOOD 11 ESE BAKER 35.25N 115.89W
07/05/2014 SAN BERNARDINO CA PARK/FOREST SRVC
KELBAKER ROAD CLOSED DUE TO FLOODING. PARK SERVICE
WORKING ON GETTING IT RE-OPENED. TIME OF REPORT ESTIMATED
FROM RADAR.
&&
TLERICOSThe Las Vegas radar (KESX), 102 km away, was scanning. The volume nearest the first event began at 20:52 UTC.
8 flash flood, 5 thunderstorm wind, 1 heavy rain. Local standard time, as filed.
Thunderstorm winds sheared four transmission poles south of Griffith Road, knocking out power to all of Golden Valley and parts of Kingman for two hours; and in Chloride, Dolan Springs, Meadview, and White Hills for 16 hours.
A car crash on Highway 68 in heavy rain conditions killed one and injured three (indirect).
Mud washed onto Bullhead Parkway.
Thunderstorm winds in Havasu Heights destroyed one home, moved one mobile home off its foundation, damaged several garage doors, damaged several roofs, blew out numerous home and vehicle windows, overturned RVs, and blew away one chicken coop and several chickens.
Thunderstorm winds blew down 44 power lines near Sara Park, knocking out power to southern portions of Lake Havasu City.
Route 66 near Topock was closed due to flooding.
Six to eight inches of water flowed over Valley Park Way at Puma Road.
Water was up to car doors in downtown Kingman.
Water one to two feet deep flowed over Diamond Creek Road.
A rockslide occurred along Interstate 40 between mile markers 47 and 48. The interstate itself was not affected.
Water at least a foot deep flowed down the streets in Topock.
Thunderstorm winds uprooted a mesquite tree.
Thunderstorm winds damaged the roof of a closed restaurant.
Flash flooding closed Highway 1 north of Topock.
As the offices recorded each death: direct deaths were caused by the weather itself, indirect ones by something it set in motion.
| Event | Date | Age | Sex | Where | Kind |
|---|---|---|---|---|---|
| Heavy Rain, Mohave | 2014-07-06 | 80 | Female | Vehicle/Towed Trailer | Indirect |
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: 536171, 536176, 536179, 536186, 536189, 536192, 536198, 536200, 536201, 536210, 536212, 536214, 536217, 536218.