Monsoon moisture lingered over the Mojave Desert and southern Great Basin, continuing to fuel thunderstorms. 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.
Monsoon moisture lingered over the Mojave Desert and southern Great Basin, continuing to fuel thunderstorms. 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 Jul 7, 4:53 AM PST, 2 hours 4 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LAS VEGAS NV 553 AM PDT THU JUL 7 2011 .SYNOPSIS...MONSOON MOISTURE WILL REMAIN OVER THE REGION THROUGH FRIDAY. THE MOIST AND UNSTABLE AIR WILL KEEP THE CHANCES FOR THUNDERSTORMS OVER THE MOJAVE DESERT AND SOUTHERN GREAT BASIN EACH AFTERNOON AND EVENING. BURSTS OF HEAVY RAIN WILL OCCUR WITH SOME OF THE THUNDERSTORMS. DRIER AIR FROM THE WEST WILL LOWER THUNDERSTORM CHANCES OVER THE WEEKEND WITH THE MOISTURE BEING SCOURED OUT OF NORTHWEST ARIZONA EARLY NEXT WEEK. && .UPDATE...RADAR SHOWS AREAL COVERAGE OF SHOWERS EXPANDING ACROSS SOUTHWEST LINCOLN COUNTY. SHOWERS SHOULD CONTINUE NORTHEASTWARD ACROSS LINCOLN COUNTY AROUND WEAKENING MCV. INCREASED POPS IN THE UPDATE FOR THE MORNING PERIOD. && .PREV DISCUSSION... 339 AM PDT THU JUL 7 2011 .SHORT TERM...MCV THAT WAS OVER SAN BERNARDINO COUNTY YESTERDAY HAS BECOME MORE DIFFUSE IN SATELLITE IMAGERY. BUT BASED ON RADAR IMAGERY CENTER OF CIRCULATION APPEARS TO BE OVER SOUTHERN NYE COUNTY EARLY THIS MORNING. ISOLATED LIGHT SHOWERS CONTINUE AROUND THE CIRCULATION. MODELS IN SIMILAR AGREEMENT WEAKENING THE FEATURE FURTHER AS IT MOVES NORTHEAST ACROSS LINCOLN COUNTY. OTHER THEN THAT FEATURE AND OROGRAPHICS NOTHING ELSE EVIDENT IN SATELLITE THAT WOULD HELP TRIGGER STORMS TODAY. MODEL SOUNDINGS SHOW A STEERING FLOW OUT OF THE SOUTHWEST TODAY. THAT IS AN OPPOSITE FLOW TO YESTERDAY...SO ANY STORMS THAT DEVELOP OVER THE SPRING MOUNTAIN RANGE TO THE WEST OR SOUTHERN CLARK COUNTY HAVE A CHANCE OF MOVING INTO THE LAS VEGAS VALLEY. PRECIPITABLE WATER VALUES REMAIN WELL ABOVE NORMAL...HOWEVER STORM MOTION IS EXPECTED TO BE AROUND 10 MPH. WILL NOT ISSUE A FLASH FLOOD WATCH AT THIS TIME AS BELIEVE THE FASTER STORM MOTION SHOULD ALLEVIATE SOME OF THE FLOODING CONCERNS. WITH THAT SAID THOUGH...CAN NOT TOTALLY RULE OUT THAT THERE MAY BE URBAN FLOODING OR SOME NORMALLY DRY WASHES WOULD EXPERIENCE RAPID RISES. STILL LOOKING AT DECREASING CHANCES OF THUNDERSTORMS FOR THE WESTERN HALF OF THE FORECAST AREA BY SATURDAY AS DRIER/MORE STABLE CONDITIONS BEGIN MAKING SOME INROADS INTO CALIFORNIA. TEMPERATURES WILL BE A FEW DEGREES BELOW NORMAL...BUT THE COMFORT LEVEL WILL BE OFFSET BY THE HIGHER HUMIDITY. .LONG TERM...MOISTURE IS EXPECTED TO REMAIN OVER THE FAR EASTERN PORTION OF THE AREA SUNDAY LEADING TO A CONTINUATION OF AFTERNOON SHOWERS AND THUNDERSTORMS. MODELS CONTINUE TO INDICATE A PACIFIC TROUGH PUSHING INTO THE AREA LATE SUNDAY AND MONDAY WHICH IS EXPECTED TO BRING A DRYING TREND CWA WIDE MONDAY THROUGH WEDNESDAY. WITH THE TROUGH PATTERN OVER THE WEST COAST NEXT WEEK TEMPERATURES ARE FORECAST TO BE CLOSE TO NORMAL. && .AVIATION...FOR MCCARRAN...A FEW SHOWERS AND ISOLATED THUNDERSTORMS WILL CONTINUE THROUGH EARLY THIS MORNING MAINLY AFFECTING THE BEATTY CORRIDOR. ADDITIONAL SHOWERS AND THUNDERSTORMS WILL DEVELOP THIS AFTERNOON AREAWIDE WITH THE POTENTIAL OF ERRATIC AND GUSTY WINDS ALONG WITH VERY HEAVY RAIN. UPPER STEERING FLOW WILL BE FROM THE WEST TO EAST SO ANY STORMS DEVELOPING OVER THE SPRING MOUNTAINS MAY WORK INTO THE VALLEY. FOR THE REST OF SOUTHERN NEVADA...NORTHWEST ARIZONA...AND SOUTHEAST CALIFORNIA...SHOWERS AND ISOLATED THUNDERSTORMS ARE EXPECTED TO CONTINUE THROUGH EARLY MORNING OVER PORTIONS OF NYE AND LINCOLN COUNTIES. ADDITIONAL SHOWERS AND THUNDERSTORMS WILL DEVELOP THIS AFTERNOON OVER MUCH OF THE AREA LEADING TO THE POTENTIAL OF ERRATIC AND GUSTY WINDS AND HEAVY RAIN ALONG WITH LOW CIGS AND VSBYS. && .VEF WATCHES/WARNINGS/ADVISORIES... NV...NONE. AZ...NONE. CA...NONE. && PIERCE/GORELOW HTTP://WEATHER.GOV/LASVEGAS
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LAS VEGAS NV 543 AM PDT THU JUL 7 2011 AZZ001>003-036-CAZ519>527-NVZ014>022-080700- 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- 543 AM PDT THU JUL 7 2011 /543 AM MST THU JUL 7 2011/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST ARIZONA...CALIFORNIA AND SOUTHERN NEVADA. .DAY ONE...TODAY AND TONIGHT SCATTERED THUNDERSTORMS MAY BE BETTER ORGANIZE NEAR AN UPPER LEVEL DISTURBANCE OVER EAST CENTRAL NEVADA TODAY AND THIS EVENING. ELSEWHERE...THUNDERSTORMS WILL DEVELOP OVER THE MOUNTAINS OF THE MOJAVE DESERT AND SOUTHERN GREAT BASIN THEN DRIFT INTO THE SURROUNDING VALLEYS. BURSTS OF HEAVY RAIN AND LOCALIZED FLOODING REMAIN A CONCERN. REMEMBER...DO NOT ATTEMPT TO TRAVEL ACROSS FLOODED ROADS OR LOW WATER CROSSINGS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY THUNDERSTORMS CHANCES CONTINUE FRIDAY WITH HEAVY RAINFALL A CONCERN. DRIER AIR FROM THE WEST WILL SPREAD EAST OVER THE WEEKEND LEADING TO A DECREASE IN THUNDERSTORM COVERAGE OVER THE WEEKEND AND INTO EARLY NEXT WEEK. BY NEXT TUESDAY AND WEDNESDAY THIS BATCH OF MONSOON MOISTURE SHOULD BE SCOURED OUT OF EVEN NORTHWEST ARIZONA. .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 San Joaquin Valley radar (KHNX), 149 km away, was scanning. The volume nearest the first event began at 14:56 UTC.
2 flash flood, 1 flood, 1 lightning. Local standard time, as filed.
Bishop Creek swelled and overflowed due to a combination of melting snow and heavy rain, flooding and closing Buttermilk Road.
Lightning knocked down numerous power poles on Two Mile Road at Sunrise Road.
Pole Line Road was flooded with lots of debris between Meldora and Sunrise.
Panamint Valley Road was washed out, and Highway 190 was flooded.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in California in 2011Every state in 2011This day in weather historyWarnings in California, July 2011
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: 310909, 322834, 310912, 310914.