1 flash flood, as filed by the National Weather Service.
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. 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 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, 2:15 AM PST, 4 hours 5 minutes earlier.
MOJAVE DESERT/SOUTHERN GREAT BASIN AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LAS VEGAS NV 315 AM PDT SAT JUL 7 2001 SYNOPSIS...A FLOW OF DEEP MONSOONAL MOISTURE WILL CONTINUE OVER THE SOUTHERN GREAT BASIN AND MOJAVE DESERT THROUGH TODAY. THE ATMOSPHERE WILL REMAIN VERY MOIST AND UNSTABLE PRODUCING ANOTHER ROUND OF THUNDERSTORMS WITH THE THREAT OF LOCALIZED HEAVY RAIN. A SLIGHT DRYING TREND IS EXPECTED ON SUNDAY FOR A DECREASE IN THUNDERSTORM CHANCES. DISCUSSION...LOOKS LIKE ANOTHER ACTIVE DAY IS ON TAP...ALTHOUGH THE WEATHER SCENARIO IS NOT NEARLY AS CUT AND DRY AS YESTERDAY. SOME MID LEVEL DRYING HAS INTRUDED ON THE SOUTHERN CWA EARLY THIS MORNING... WHICH WILL ALLOW FOR MORE SUNSHINE. OBVIOUSLY...THIS SHOULD PROVIDE A BOOST TO OUR HIGH TEMPERATURES WHICH WERE WELL BELOW NORMAL YESTERDAY GIVEN ALL THE CLOUD COVER. ALSO...THIS WILL ALLOW FOR MORE POWERFUL STORMS TO DEVELOP AS WELL. GIVEN THE NATURE OF THE AIRMASS...ANY STORMS THAT DEVELOP WILL BE VERY EFFICIENT RAIN PRODUCERS. THUS...I HAVE DECIDED TO ISSUE A FLASH FLOOD WATCH FOR OUR CALIFORNIA ZONES EXCEPT FOR THOSE AREAS ALONG THE LOWER COLORADO RIVER. ALTHOUGH THE MAIN VORTMAX ASSOCIATED WITH YESTERDAY'S ACTIVITY HAS LEFT THE AREA. THERE REMAINS A SECONDARY ASSOCIATED CIRCULATION IN THE FLOW...AND THIS WILL PLAY A ROLE AND HELP WITH ANY CONVECTIVE DEVELOPMENT TODAY AND THIS EVENING. ADD A FAVORABLE DIFFLUENT FLOW ALOFT TO THE MIX AND ALL SIGNS POINT TO SOUTHEAST CALIFORNIA FOR FLOOD POTENTIAL. SOME OF THIS ACTIVITY MAY SPILL OVER INTO NEVADA... ESPECIALLY CLARK AND ESMERALDA COUNTIES. THE DAYSHIFT WILL NEED TO MONITOR THIS CLOSELY TO SEE IF ANY EXPANSION OF THE FLASH FLOOD WATCH IS NEEDED. THERE IS ALSO A RISK OF SEVERE WEATHER TODAY...BUT I WOULD CONSIDER THIS RISK TO BE SECONDARY TO THE RISK OF FLOODING AND THE WIND FIELDS ALOFT AREN'T AS FAVORABLE AS THEY WERE YESTERDAY FOR THIS TYPE OF OCCURRENCE. MODELS CONTINUE TO SUGGEST A DECREASING TREND IN PRECIPITATION POSSIBILITIES AND THIS IS ACCEPTED. HOWEVER...THE LOW LEVEL MOISTURE IN PLACE IN NOT REALLY IN ANY HURRY TO LEAVE THE AREA...AND I AM HESITANT TO INTRODUCE ANY DRYING GIVEN THE RECENT MODEL STRUGGLES WITH THIS FLOW PATTERN. FOR NOW...I HAVE DECREASED POPS ON SUNDAY...BUT HAVE MAINTAINED A BROAD-BRUSH FORECAST FOR THE EXTENDED PERIOD. JAH .LAS...A FLASH FLOOD WATCH HAS BEEN ISSUED. PLEASE }REFER TO THE LATEST RNOFFALAS STATEMENT FOR DETAILS.
The national radar mosaic for the moment the first event began.
1 flash flood. Local standard time, as filed.
Strong thunderstorms produced 1.54 inches of rain in a two hour period which caused several roads to flood.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in California in 2001Every state in 2001This day in weather historyWarnings in California, July 2001
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: 5256794.