1 flash flood, as filed by the National Weather Service.
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 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 Los Angeles, CA wrote its last area forecast discussion before the first event at Jul 24, 12:17 PM PST, 2 hours 53 minutes earlier.
SOUTHWEST CALIFORNIA AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA 117 PM PDT SUN JUL 24 2005 .SHORT TERM... HAD AN EARLIER CONVECTION INITIATION TIME TODAY...PARTLY DUE TO A SQUEEZE PLAY BETWEEN A SHORTWAVE MOVING SOUTH FROM THE CENTRAL VALLEY AND ANOTHER SHORTWAVE MOVING WEST ACROSS NRN BAJA. CONVECTION TIGHTLY CLUSTERED IN SW SAN BERNARDINO COUNTY...BUT SO FAR ONLY ONE OR TWO CELLS HAVE PERCOLATED OVER THE EASTERN SAN GABRIELS. ALL PARAMETERS REMAIN IN PLACE FOR HEAVY RAIN PRODUCING THUNDERSTORMS THIS AFTERNOON ACROSS NORTHEASTERN LOS ANGELES COUNTY AND NORTHERN VENTURA COUNTY. STEERING FLOW WILL DRIFT THE STORMS WSW AND SO SOME MAY EDGE INTO THE ADJACENT COASTAL VALLEYS. HOWEVER...THE AIRMASS CLOSER TO THE COAST IS CONSIDERABLY MORE STABLE SO I DONT ANTICIPATE ANY PROBLEMS THERE. AN ALTOCUMULUS DECK COVERED THE ANTELOPE VALLEY AND CENTRAL LA COUNTY MTNS THIS MORNING...BUT I THINK ALL THAT WILL DO IS DELAY THE ONSET OF CONVECTION IN THOSE AREAS. SURFACE DEWPOINTS ARE RATHER JUICY...WITH LOWER 60S IN THE ANTELOPE VALLEY AND EVEN SOME LOWER 70S ON THE SOUTHEASTERN SIDE OF THE SAN GABRIEL MTNS. CONVECTION SHOULD DIE OFF TOWARD SUNSET. WITH THE RETURN OF THE COASTAL STRATUS TO POINTS SOUTH OF POINT CONCEPTION LAST NIGHT...I DONT SEE WHY IT WONT BE THERE AGAIN TONIGHT. HOWEVER...IM NOT CONFIDENT OF ITS COVERAGE OVER THE VENTURA/LA COASTAL PLAINS...SO WILL NOT MAKE A BIG DEAL ABOUT IT. THE INVERTED TROUGH...A.K.A REMNANT TROUGH OF HURRICANE EMILY...WILL MOVE SOUTHWEST OF THE AREA MONDAY AND DRIER AIR FROM THE NORTH WILL BE FILTERING SOUTH. HOWEVER...THERE IS STILL ENOUGH 850 MB MOISTURE AROUND TO WARRANT SLIGHT CHC OF TSTMS OVER THE LA/VENTURA MTNS AND ANTELOPE VLY IN THE AFTERNOON AND EVENING. THAT SHOULD BE IT FOR A FEW DAYS. THE UPPER LEVEL RIDGE AXIS BUILDS BACK OVER THE AREA TUESDAY...BUT NOT AT THE SAME MAGNITUDE AS WHAT WE HAVE SEEN RECENTLY. TEMPS WILL CHANGE LITTLE INLAND THROUGH THE PERIOD...BUT AN INCREASE IN THE ONSHORE FLOW AND A RETURN TO A MORE TYPICAL SUMMERTIME NIGHT AND MORNING STRATUS PATTERN BY TUESDAY WILL YIELD COOLER AFTERNOON HIGHS AT THE BEACHES AND INLAND TO THE COASTAL VALLEYS. .LONG TERM... BY THURSDAY...THE UPPER LEVEL RIDGE IS EXPECTED TO MIGRATE BACK OVER THE FOUR CORNERS REGION AND UPPER LEVEL FLOW OVER THE AREA BECOMES SOUTHERLY AGAIN. BETWEEN THE FLOW AROUND THE RIDGE AND AN APPROACHING TROUGH FROM THE EAST PACIFIC...TROPICAL MOISTURE WILL LIKELY START GETTING PULLED TO THE NORTH AGAIN...AND WELL NEED TO KEEP A MENTION OF AFTN/EVENING TSTM ACTIVITY FOR THE LA/VENTURA COUNTY MTNS AND ANTELOPE VALLEY FOR FRIDAY THROUGH SUNDAY. AGAIN...LITTLE CHANGE IN THE TEMPERATURES THROUGH THE PERIOD. && .AVIATION...VFR CONDITIONS PREVAILED OVER THE AREA EARLY THIS AFTERNOON WITH SCATTERED THUNDERSTORMS OVER THE MOUNTAIN TWEB ROUTE. RELATIVELY SHALLOW MARINE LAYER WITH TOPS AROUND 1KFT WITHIN LIGHT ONSHORE WINDS. HAVE FOLLOWED MOS WITH THE LA COUNTY TAFS THOUGH ADJUSTED THE TIMING OF DEVELOPING MVFR CIGS OVER THE COAST AND FOLLOWED PERSISTENCE ELSEWHERE. && .LOX WATCHES/WARNINGS/ADVISORIES... FLOOD WATCH FOR FLASH FLOODING (SEE LAXFFALOX). && PUBLIC...MOYER AVIATION...FORWOOD
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
The national radar mosaic for the moment the first event began.
1 flash flood. Local standard time, as filed.
Powerful monsoonal thunderstorms produced heavy rain and flash flooding in the Antelope Valley. In the city of Palmdale, a weather spotter flash flooding along Highway 14 at the intersection with Avenue D. The intersection was flooded with over 2 feet of water.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in California in 2005Every state in 2005This day in weather historyWarnings in California, July 2005
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: 5458966.