Another push of monsoon moisture fueled thunderstorms over the eastern portions of the Mojave Desert and southern Great Basin. 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.
Another push of monsoon moisture fueled thunderstorms over the eastern portions of the Mojave Desert and southern Great Basin. 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 14, 12:49 PM PST, 3 hours 31 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LAS VEGAS NV 149 PM PDT FRI AUG 14 2015 .SYNOPSIS...LESS STORM COVERAGE AND WARMER TEMPERATURES ARE EXPECTED SATURDAY. HIGH PRESSURE WILL BECOME THE DOMINANT FEATURE SUNDAY AND MONDAY WITH VERY HOT CONDITIONS EXPECTED. A PACIFIC STORM SYSTEM IS THEN FORECAST TO BRING RELIEF FROM THE HEAT WITH TEMPERATURES CLOSER TO TYPICAL SEASONAL LEVELS AFTER MONDAY. && .DISCUSSION... THUNDERSTORM ACTIVITY HAS DEVELOPED ACROSS MOHAVE, FAR SOUTHERN CLARK, AND LINCOLN COUNTIES, WITH SHOWERS STARTING TO POP ACROSS EASTERN SAN BERNARDINO COUNTY. THESE WERE THE FAVORED AREAS FOR TODAY AND EXPECT THAT TO BE THE CASE THROUGH THE EARLY EVENING. COVERAGE IS MUCH LESS THAN THIS TIME YESTERDAY, WHICH IS ALSO EXPECTED. HOWEVER, WE WILL SEE HOW THINGS DEVELOP AND WHAT OUTFLOW BOUNDARIES DO WORKING WITH A VERY MOIST LOWER ATMOSPHERE. AS MENTIONED IN THE UPDATE THIS MORNING, THE STEERING FLOW IS FAVORABLE TO MOVE SOME OF THE SOUTHERN CLARK COUNTY CONVECTION TOWARD THE LAS VEGAS VALLEY. ALSO, THUNDERSTORMS THAT DEVELOP SHOULD HAVE HIGH PRECIP EFFICIENCY, WITH A WARM CLOUD DEPTH OF 14KFT, K INDEX IN THE 30S, PW OF OVER AN INCH, AND SUB-CLOUD LAYER RH OF 40-50 PERCENT. THUNDERSTORMS ARE EXPECTED TO WANE THIS EVENING. ADDITIONAL STORMS ARE POSSIBLE SATURDAY AFTERNOON WITH HIGH PRESSURE REMAINING EAST OF THE AREA, BUT BELIEVE COVERAGE WILL BE EVEN LESS THAN TODAY. BY SUNDAY, THE UPPER-LEVEL HIGH TRANSITIONS TO SOUTHWEST ARIZONA AND SOUTHERN CALIFORNIA, ENDING ANY CHANCE FOR STORMS. AS THE HIGH SHIFTS TO SOUTHWEST ARIZONA AND WE DRY OUT, TEMPERATURES WILL CLIMB. THE LATEST GUIDANCE CONTINUES TO INDICATE SUNDAY WILL BE THE HOTTEST DAY WITH HEAT LINGERING INTO MONDAY. BASED ON JUST TEMPERATURES, THE EXCESSIVE HEAT WARNING LOOKS GOOD. BUT ALSO, THE HOT TEMPERATURES COMBINED WITH DEWPOINTS IN THE 30S MAYBE 40S DURING THE AFTERNOON WOULD CREATE A HEAT WE WOULD CERTAINLY FEEL, WHICH WE HAVE NOT HAD FOR A WHILE. IF THAT IS NOT ENOUGH, SATURDAY WILL BE WARMING NICELY AND OVERNIGHT LOWS WILL REMAIN SOMEWHAT ELEVATED, WHICH WILL CREATE A MULTI-DAY COMBINED HOT STREAK THAT MAY TAKE A TOLL ON THE BODY BY SUNDAY AND MONDAY. SO, WILL KEEP THE EXCESSIVE HEAT WARNING AS IS. AFTER MONDAY, MODELS CONTINUE TO INDICATE A SIGNIFICANT PATTERN CHANGE, WITH A FAST MOVING SHORTWAVE TROUGH DROPPING FROM THE PACIFIC NORTHWEST INTO THE NORTHERN INTERMOUNTAIN REGION. MODELS SEEM TO BE IN BETTER AGREEMENT WITH TIMING AND THAT THE TROUGH WILL BRING A COOLING TREND, WITH READINGS GETTING BACK TOWARD NORMAL BY THURSDAY. THE TROUGH WILL ALSO LIKELY INCREASE WINDS A BIT, BUT NOTHING SIGNIFICANT IS ANTICIPATED AT THIS TIME. && .AVIATION...FOR MCCARRAN...ISOLATED THUNDERSTORM ACTIVITY WILL BRING ERRATIC WINDS AT TIMES THROUGH 03Z SATURDAY. MAINLY FEW-SCT CLOUDS AOA 15KFT WITH PERIODS OF 10KFT CIGS ASSOCIATED WITH THUNDERSTORMS. OTHERWISE...NORMAL DIURNAL WIND TRENDS ARE EXPECTED. FOR THE REST OF SOUTHERN NEVADA...NORTHWEST ARIZONA...AND SOUTHEAST CALIFORNIA...DIURNAL SURFACE WINDS ACROSS MOST AREAS TODAY EXCEPT IN AREAS IMPACTED BY THUNDERSTORM ACTIVITY. MAINLY EAST OF A KDAG TO KDRA TO KELY LINE. WINDS WITH GUSTS TO NEAR 30KTS ARE EXPECTED IN THE OWENS VALLEY THIS AFTERNOON. && .SPOTTER INFORMATION STATEMENT...SPOTTERS ARE ENCOURAGED TO REPORT ANY SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. && DISCUSSION...PADDOCK AVIATION.....BERC FOR MORE FORECAST INFORMATION...SEE US ON OUR WEBPAGE: HTTP://WEATHER.GOV/LASVEGAS OR FOLLOW US ON FACEBOOK AND TWITTER
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE LAS VEGAS NV
412 PM PDT FRI AUG 14 2015
...TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
...DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0300 PM FLASH FLOOD 8 ESE NEW KINGMAN-BUTLER35.20N 113.90W
08/13/2015 MOHAVE AZ FIRE DEPT/RESCUE
PINION PINE FIRE DEPARTMENT REPORTS DW RANCH
ROAD IS CLOSED DUE TO FLASH FLOODING. WATER
WAS REPORTED FLOWING OVER THE ROADWAYS IN
LOW WATER CROSSINGS WITH BOULDERS WASHING
ONTO THE ROADWAY.
0314 PM TSTM WND GST SAM BOYD STADIUM 36.09N 115.01W
08/13/2015 M60 MPH CLARK NV PUBLIC
PUBLIC REPORTED A WIND GUST ESTIMATED AT 60
MPH.
0315 PM TSTM WND DMG 1 NE HENDERSON 36.05N 114.97W
08/13/2015 CLARK NV BROADCAST MEDIA
BROADCAST MEDIA REPORTS 27 POWERPOLES NEAR
LAKE MEAD PARKWAY AND WARM SPRINGS. TIME
ESTIMATED FROM RADAR
0315 PM TSTM WND DMG 2 NNE HENDERSON 36.07N 114.96W
08/13/2015 CLARK NV BROADCAST MEDIA
BROADCAST MEDIA REPORTS AWNING DESTROYED AT
N PUEBLO BLVD AND CADIZ AVE. TIME ESTIMATED
FROM RADAR.
0315 PM TSTM WND DMG 2 NE HENDERSON 36.07N 114.96W
08/13/2015 CLARK NV BROADCAST MEDIA
BROADCAST MEDIA REPORTS AWNING DESTROYED AT
N PUEBLO BLVD AND CADIZ AVE. TIME ESTIMATED
FROM RADAR.
0315 PM TSTM WND DMG 1 NE HENDERSON 36.05N 114.97W
08/13/2015 CLARK NV BROADCAST MEDIA
BROADCAST MEDIA REPORTS NUMEROUS DOWNED
POWERPOLES NEAR LAKE MEAD PARKWAY AND WARM
SPRINGS. TIME ESTIMATED FROM RADAR
0316 PM TSTM WND DMG 1 NE HENDERSON 36.05N 114.96W
08/13/2015 CLARK NV PUBLIC
WOODEN FENCE AT A HOUSE BLEW DOWN ALONG
FULLERTON AVENUE.
0320 PM TSTM WND DMG 1 NNE HENDERSON 36.05N 114.97W
08/13/2015 CLARK NV PUBLIC
PHOTO SUBMITTED VIA SOCIAL MEDIA OF LARGE
DOWNED TREE NEAR WARM SPRINGS AND LAKE MEAD.
0327 PM TSTM WND DMG HENDERSON 36.04N 114.98W
08/13/2015 CLARK NV PUBLIC
REPORT VIA SOCIAL MEDIA OF MINOR ROOF DAMAGE
AS WELL AS DOWNED TREES AND POWER LINES IN
THE AREA.
0345 PM TSTM WND GST 3 NNW NORTH LAS VEGAS 36.24N 115.13W
08/13/2015 M62 MPH CLARK NV PUBLIC
TRAINED SPOTTER REPORTED PEAK GUST TO 62 MPH
ON CALIBRATED DAVIS SENSOR. NEAR CRAIG AND
DONNA STREET.
0350 PM TSTM WND DMG 1 SW DOWNTOWN LAS VEGAS 36.17N 115.15W
08/13/2015 CLARK NV BROADCAST MEDIA
LARGE MESQUITE TREE SNAPPED DOWN BY THE WIND
AT THE CLARK COUNTY GOVERNMENT CENTER. THE
TIME IS AN ESTIMATE.
0353 PM TSTM WND GST 1 NW DOWNTOWN LAS VEGAS 36.18N 115.15W
08/13/2015 E60 MPH CLARK NV PUBLIC
WIND GUST ESTIMATED AT 60 MPH NEAR MARBLE
MANOR
0355 PM FLASH FLOOD 5 W INDIAN SPRINGS 36.58N 115.75W
08/13/2015 CLARK NV LAW ENFORCEMENT
VIDEO SHARED BY NHP OF LARGE FLOW OF DEEP
AND RAPIDLY MOVING WATER ALONG CURBSIDES OF
US95 AT MM125.
0407 PM TSTM WND DMG 2 NNE HENDERSON 36.06N 114.97W
08/13/2015 CLARK NV PUBLIC
A LARGE METAL BILLBOARD WAS RIPPED DOWN NEAR
THE SUNSET MARKET. EVENT TIME IS AN ESTIMATE
BASED ON RADAR.
0409 PM TSTM WND DMG 4 NW SAM BOYD STADIUM 36.13N 115.06W
08/13/2015 CLARK NV PUBLIC
A LARGE TREE FELL DOWN AND ONTO CABANA
BETWEEN DESERT INN AND FLAMINGO AND BLOCKED
THE ROAD.
0410 PM TSTM WND GST 1 NW OVERTON 36.55N 114.46W
08/13/2015 M59 MPH CLARK NV CO-OP OBSERVER
COOP OBSERVER MEASURED 59 MPH GUST WHICH
ALSO KNOCKED OVER PRECIPITATION GAUGE.
0411 PM HEAVY RAIN DOWNTOWN LAS VEGAS 36.17N 115.14W
08/13/2015 E0.40 INCH CLARK NV PUBLIC
HEAVY RAIN CAUSED THE ROOF TO LEAK INTO THE
CASINO AREA OF THE GOLDEN NUGGET AND ONTO 3
CRAPS TABLES.
0435 PM FLASH FLOOD 3 SE GREEN VALLEY 36.02N 115.05W
08/13/2015 CLARK NV PUBLIC
PUBLIC REPORTS HORIZON RIDGE PARKWAY CLOSED
DUE TO FLOODING BETWEEN STEPHANIE STREET AND
GIBSON.
0442 PM FLASH FLOOD 2 ENE HENDERSON 36.05N 114.95W
08/13/2015 CLARK NV PUBLIC
PUBLIC TWEETED VIDEO OF 6+ INCHES OF WATER
FLOWING OVER THE ROADWAY AT N RACETRACK AT
E. WARM SPRINGS ROAD.
0442 PM FLASH FLOOD 2 ENE HENDERSON 36.05N 114.95W
08/13/2015 CLARK NV PUBLIC
PUBLIC TWEETED VIDEO OF 6+ INCHES OF WATER
FLOWING OVER THE ROADWAY AT N RACETRACK AT
E. WARM SPRINGS ROAD.
0538 PM HEAVY RAIN 1 SE GREEN VALLEY 36.03N 115.06W
08/13/2015 M1.08 INCH CLARK NV NWS EMPLOYEE
A RETIRED NWS METEOROLOGIST MEASURED A TOTAL
OF 1.08 INCH OF RAIN NEAR WIGWAM AND VALLE
VERDE.
0545 PM FLASH FLOOD 3 SE DOWNTOWN LAS VEGAS 36.14N 115.11W
08/13/2015 CLARK NV BROADCAST MEDIA
BROADCAST MEDIA SHOWS STALLED CAR AT THE
INTERSECTION OF S MOJAVE RD AND HEBARD DR.
0545 PM FLASH FLOOD 3 SE DOWNTOWN LAS VEGAS 36.14N 115.11W
08/13/2015 CLARK NV BROADCAST MEDIA
BROADCAST MEDIA SHOWS STALLED CAR AT THE
INTERSECTION OF S MOJAVE RD AND HEBARD DR.
0550 PM LIGHTNING 1 WSW HENDERSON 36.03N 115.00W
08/13/2015 CLARK NV NEWSPAPER
AT LEAST 10,800 NV ENERGY CUSTOMERS LOST
POWER, MAINLY IN HENDERSON, DUE TO LIGHTNING
AND THUNDERSTORM WINDS.
0550 PM FLASH FLOOD 3 NE ENTERPRISE 36.05N 115.19W
08/13/2015 CLARK NV NWS EMPLOYEE
MUD AND ROCKS WERE REPORTED ON ROBINDALE
BETWEEN DECATUR AND DEAN MARTIN.
0600 PM FLASH FLOOD 3 SE GREEN VALLEY 36.02N 115.04W
08/13/2015 CLARK NV COUNTY OFFICIAL
CITY OF HENDERSON REPORTS SIGNIFICANT DEBRIS
OVER THE ROADWAY ON WEST HORIZON RIDGE
PARKWAY AND VALARE ST.
0614 PM FLASH FLOOD 7 W INDIAN SPRINGS 36.57N 115.80W
08/13/2015 CLARK NV LAW ENFORCEMENT
NDOT WAS CALLED TO REMOVE DEBRIS FROM
HIGHWAY 95 BETWEEN MILE MARKERS 125 AND 127
DUE TO FLOODWATERS.
0723 PM FLASH FLOOD 6 SW EAGLE VALLEY RESERV37.96N 114.27W
08/13/2015 LINCOLN NV LAW ENFORCEMENT
THE LINCOLN COUNTY SHERIFF REPORTED DEBRIS
AND WATER DUE TO FLASH FLOODING ON HIGHWAY
322 BETWEEN MILE MARKERS 4 AND 9.
0835 PM TSTM WND DMG 2 NW DESERT HILLS 34.57N 114.39W
08/13/2015 MOHAVE AZ BROADCAST MEDIA
REPORT OF DOWNED TREES AND SWAMP COOLER
BLOWN OFF ROOF OF HOUSE IN CRYSTAL BEACH.
TIME ESTIMATED OFF RADAR.
&&
THIS IS A SUMMARY OF REPORTS FROM THURSDAY, AUGUST 13TH UPDATED FOR
LATE REPORTS AND UPDATED INFORMATION.
CTS/CO/JP/BPThe Las Vegas radar (KESX), 178 km away, was scanning. The volume nearest the first event began at 00:19 UTC.
1 flash flood. Local standard time, as filed.
Highway 62 was flooded in three places with vehicles stuck.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in California in 2015Every state in 2015This day in weather historyWarnings in California, August 2015
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: 594799.