Lingering monsoon moisture continued to fuel thunderstorms over the Mojave Desert. A few storms produced flash flooding and severe weather.
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.
Lingering monsoon moisture continued to fuel thunderstorms over the Mojave Desert. A few storms produced flash flooding and severe weather.
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 Sep 6, 5:42 AM PST, 8 hours 30 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LAS VEGAS NV 642 AM PDT FRI SEP 6 2013 .SYNOPSIS...MOIST AND UNSTABLE AIR WILL RESULT IN SHOWERS AND THUNDERSTORMS IN THE AFTERNOON AND EVENING HOURS THROUGH SATURDAY. AN INFUSION OF MOISTURE FROM THE TROPICS WILL RESULT IN AN INCREASED POTENTIAL FOR SHOWERS AND THUNDERSTORMS FROM SUNDAY INTO WEDNESDAY WITH THE POTENTIAL FOR ACTIVITY AT ANY TIME OF THE DAY. THERE WILL BE THE POSSIBILITY OF LOCALLY HEAVY RAINFALL IN THIS TIME PERIOD. TEMPERATURES WILL BE NEAR NORMAL THROUGH THE WEEKEND...THEN LOWER TO BELOW NORMAL BY MONDAY. && .UPDATE...RADAR SHOWING SOME LIGHT RAIN SHOWERS IN SOUTHEAST MOHAVE COUNTY EXTENDING FROM NEAR PEACH SPRINGS TO SOUTH OF WIKIEUP. EXPANDED THE AREAL COVERAGE OF PRECIPITATION THROUGH 18Z THIS MORNING FOR SOUTHERN MOHAVE COUNTY. .PREV DISCUSSION... 250 AM PDT FRI SEP 5 2013 .SHORT TERM...LITTLE CHANGE IN MOISTURE AND INSTABILITY PARAMETERS WILL AGAIN LEAD TO ISOLATED TO SCATTERED AFTERNOON AND EARLY EVENING THUNDERSTORMS OVER THE EASTERN AND SOUTHERN PORTIONS OF THE CWA. IT DOES LOOK LIKE THERE WILL BE A SLIGHT INCREASE IN COVERAGE OVER SAN BERNARDINO COUNTY TODAY AS SOME OF A HIGHER RES MODELS ARE INDICATING A COUPLE OF WEAK RIPPLES MOVING ACROSS THE AREA THIS AFTERNOON. THIS MAY LEAD TO AN INCREASE IN COVERAGE...BUT WILL HOLD OFF ON ANY FLASH FLOOD WATCHES. ANY STORM THAT DOES DEVELOP WILL HAVE THE POTENTIAL OF PRODUCING FLOODING...BUT WITH MID LEVEL WINDS STILL AROUND 10-15KTS STORMS SHOULD MOVE FAIRLY QUICKLY TO THE NORTH. SOME ACTIVITY MAY CONTINUE INTO THE EARLY EVENING...BUT MAJORITY OF STORMS WILL DIMINISH AFTER SUNSET LIKE THAT HAVE OVER THE PAST COUPLE OF DAYS. LOOKS LIKE SATURDAY WILL NOT BE MUCH DIFFERENT AS MOISTURE AND INSTABILITY IN PLACE WILL AGAIN LEAD TO AFTERNOON AND EARLY EVENING SHOWERS AND THUNDERSTORMS MAINLY OVER THE SOUTHERN AND EASTERN PORTIONS OF THE CWA. TEMPERATURES ARE EXPECTED TO REMAIN JUST A COUPLE OF DEGREES ABOVE NORMAL THROUGH SATURDAY. .LONG TERM...SUNDAY THROUGH THURSDAY...LORENA FORECAST BY NHC TO REMAIN A TROPICAL STORM AS IT MOVES INTO SRN BAJA MEXICO THIS EVENING. LORENA WILL THEN GRADUALLY WEAKEN OVER SRN BAJA MEXICO OVER THE WEEKEND. MODELS CONSISTENT WRAPPING MOISTURE FROM LORENA NORTHWARD AT LEAST INTO SOUTHEAST CALIFORNIA AND WESTERN ARIZONA ON SUNDAY WITH MOISTURE SPREADING NORTHWARD INTO SOUTHERN NEVADA MONDAY THROUGH THURSDAY. ADDED DYNAMICS FROM UPPER LOW OFF THE NRN BAJA COAST WILL LIKELY MAKE FOR A FEW INTERESTING DAYS. ONLY CAVEAT MAY BE A SIGNIFICANT AMOUNT OF CLOUD COVER WHICH WOULD INHIBIT SURFACE HEATING WHICH WOULD KEEP THE PRECIPITATION AS SHOWERS. CONCERN IF AIR MASS IS ALLOWED TO BECOME UNSTABLE WILL BE HEAVY RAIN AND FLASH FLOODING. ADDED SHEAR COULD LEAD TO MORE ORGANIZED STORMS...BUT BASED ON FORECAST SOUNDINGS WARM AIR PROCESSES COULD BE MORE PRONOUNCED INHIBITING HAIL GROWTH. CLOUD COVER AND PRECIPITATION FORECAST TO KEEP TEMPERATURES BELOW NORMAL. && .AVIATION...FOR MCCARRAN...ISOLATED THUNDERSTORMS WILL AGAIN BE POSSIBLE THIS AFTERNOON...BUT CHANCES ARE TOO SMALL TO INCLUDE IN THE TAF. THE MORMON MESA...PEACH SPRINGS...AND DAGGETT APPROACH CORRIDORS WILL SEE SLIGHTLY HIGHER CHANCES THIS AFTERNOON. SUNDAY THROUGH WEDNESDAY THERE WILL BE THE POTENTIAL FOR SHRA/TSRA AT ANYTIME OF THE DAY AS A MORE SIGNIFICANT INFLUX OF MOISTURE ARRIVES IN SOUTHERN NEVADA. FOR THE REST OF SOUTHERN NEVADA...NORTHWEST ARIZONA...AND SOUTHEAST CALIFORNIA...ISOLATED AFTERNOON THUNDERSTORMS AND POTENTIAL GUSTY OUTFLOW WINDS ARE POSSIBLE OVER MUCH OF THE SOUTHERN AND EASTERN AREAS OF THE FORECAST AREA. OUTSIDE OF STORMS...WINDS WILL REMAIN UNDER 10 KTS EXCEPT IN THE OWENS VALLEY AND ESMERALDA COUNTY WHERE WINDS GUSTING UP TO 25 KTS WILL BE POSSIBLE. SUNDAY THROUGH WEDNESDAY THERE WILL BE THE POTENTIAL FOR SHRA/TSRA AT ANYTIME OF THE DAY AS A MORE SIGNIFICANT INFLUX OF MOISTURE ARRIVES IN THE AREA. && .VEF WATCHES/WARNINGS/ADVISORIES... NV...NONE. AZ...NONE. CA...NONE. && GORELOW/PIERCE 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 502 AM PDT FRI SEP 6 2013 AZZ001>003-036-CAZ519>527-NVZ014>022-071000- 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- 502 AM PDT FRI SEP 6 2013 /502 AM MST FRI SEP 6 2013/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST ARIZONA...CALIFORNIA AND SOUTHERN NEVADA. .DAY ONE...TODAY AND TONIGHT ISOLATED THUNDERSTORMS IN THE VALLEYS WILL BECOME MORE SCATTERED OVER THE MOUNTAINS. HEAVY RAINFALL AND LOCALIZED FLASH FLOODING IS POSSIBLE...ESPECIALLY AROUND OUR RECENT BURN AREAS. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY CONFIDENCE CONTINUES TO GROW THAT THERE WILL BE AN INCREASE IN THUNDERSTORM COVERAGE SUNDAY THROUGH THURSDAY AS ANOTHER INFLUX OF TROPICAL MOISTURE MOVES NORTH INTO MOHAVE...CLARK...LINCOLN AND SAN BERNARDINO COUNTIES. MOISTURE WILL EVENTUALLY MOVE FAR ENOUGH NORTHWEST TO AFFECT INYO...NYE AND ESMERALDA COUNTIES TUESDAY THROUGH THURSDAY. FOR THOSE LIVING NEAR RECENT BURN AREA STAY ALERT AS HEAVY RAIN COULD LEAD TO FLASH FLOODING AND DEBRIS FLOWS. .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), 71 km away, was scanning. The volume nearest the first event began at 22:13 UTC.
1 flash flood, 1 thunderstorm wind. Local standard time, as filed.
Two to three inches of water, mud, and rocks washed across the 215 Beltway at Ann Road, and also over Cliff Shadows Parkway between Lone Mountain and Alexander.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Nevada in 2013Every state in 2013This day in weather historyWarnings in Nevada, September 2013
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: 473714, 473715.