1 hail, 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 San Diego, CA wrote its last area forecast discussion before the first event at Sep 9, 9:00 AM PST, 4 hours 20 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN DIEGO CA 1000 AM PDT THU SEP 9 2004 .SYNOPSIS...UPPER LEVEL HIGH PRESSURE WILL CONTINUE WARM WEATHER INTO THE END OF THE WEEK. MOISTURE IN SOUTH FLOW ALOFT WILL BRING A CHANCE OF SHOWERS OR THUNDERSTORMS TODAY MAINLY IN THE MOUNTAINS AND DESERTS. THE CHANCE OF PRECIPITATION WILL DECREASE FRIDAY AND SATURDAY. A SHALLOW MARINE LAYER WILL BRING PATCHY COASTAL FOG IN THE NIGHTS AND MORNINGS. LOW PRESSURE ALOFT WILL BRING COOLER WEATHER AND MORE EXTENSIVE COASTAL CLOUDS EARLY NEXT WEEK. && .DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE... SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES. ISSUED A FLASH FLOOD WATCH ALTHOUGH CONDITIONS FOR FLASH FLOODING TODAY ARE VERY MARGINAL. UPPER LEVEL WINDS WOULD TEND TO SHEAR OFF TSTORMS OR SHOVE THEM ALONG RAPIDLY ENOUGH TO NOT DUMP RAIN TOO LONG IN ONE PLACE. BUT MOISTURE IS RATHER COPIOUS AND DEEP TODAY. THE WATCH WILL COVER ALL THE BIG MTNS AND DESERTS UNTIL 7 PM. UPDATED ONCE AGAIN THE ZFPSGX...HWOSGX...AND ESFSGX PRODUCTS TO ACCOUNT FOR THE FLASH FLOOD WATCH. AN EAST-WEST BAND OF LIGHT SHOWERS WAS MOVING NORTH THROUGH THE REGION...BUT STILL NOTHING MEASURABLE HAS RECORDED THIS MORNING. SHORT TERM FORECASTS ARE COVERING THE DETAILS. MORE CLEAR SKIES BEHIND THIS BAND OF LIGHT SHOWERS WILL CONTRIBUTE TO DIURNAL SURFACE HEATING WHICH MAY CONTRIBUTE TO CONVECTION CONFINED MAINLY TO THE MTNS AND DESERTS. ENOUGH MOISTURE SLOSHES AROUND THE REGION THROUGH FRI SO THAT CHANCES OF PRECIP WILL NOT ENTIRELY GO AWAY OVERNIGHT. BUT THE DEPTH AND SATURATION OF MOISTURE WILL DECREASE FRI SO DO NOT EXPECT WIDESPREAD SHOWERS THEN. THE UPPER HIGH BEGINS TO BREAK DOWN A LITTLE ON SAT WHEN A WEAK SHORTWAVE MOVES THROUGH CENTRAL CA. IT MAY BE ENOUGH TO PRODUCE A FEW SHOWERS...THIS TIME MORE LIKELY IN THE NORTHERN ZONES. A LARGE UPPER LOW WILL SLOWLY SAG SOUTHWARD IN THE WESTERN U.S. EARLY NEXT WEEK. THIS WILL BRING DRY WESTERLY FLOW AND SWEEP AWAY THE MOISTURE. IT WILL ALSO BRING COOLER AIR AND ALLOW THE MARINE LAYER TO DEEPEN. SO COOLER WEATHER WITH MORE EXTENSIVE COASTAL CLOUDS STARTING EARLY NEXT WEEK. && .SGX WATCHES/WARNINGS/ADVISORIES... FLASH FLOOD WATCH...LAXFFASGX. HAZARDOUS WEATHER OUTLOOK...LAXHWOSGX. && MM
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SAN DIEGO CA 1005 AM PDT THU SEP 9 2004 CAZ055>058-060>062-101300- SAN BERNARDINO COUNTY MOUNTAINS- RIVERSIDE COUNTY MOUNTAINS- SAN DIEGO COUNTY MOUNTAINS- APPLE AND YUCCA VALLEYS- COACHELLA VALLEY- SAN DIEGO COUNTY DESERTS- 1005 AM PDT THU SEP 9 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EXTREME SOUTHWESTERN CALIFORNIA. .DAY ONE... TODAY THROUGH TONIGHT. MOISTURE IN SOUTH FLOW ALOFT WILL BRING SCATTERED SHOWERS AND THUNDERSTORMS MAINLY TO THE MOUNTAINS AND DESERTS. DUE TO THIS WEATHER PATTERN...THE FOLLOWING HAZARDOUS WEATHER EVENTS ARE IN EFFECT... FLOOD WATCH FOR FLASH FLOODING UNTIL 700 PM TONIGHT. REFER TO LAXFFASGX WGUS66 KSGX FOR DETAILS. REFER TO LAXESFSGX FGUS76 KSGX FOR DETAILS. .DAYS TWO THROUGH SEVEN... FRIDAY. THROUGH WEDNESDAY. MOISTURE IN SOUTH FLOW ALOFT WILL BRING A CHANCE OF SHOWERS AND THUNDERSTORMS MAINLY TO THE MOUNTAINS AND DESERTS. DUE TO THIS WEATHER PATTERN...THE FOLLOWING HAZARDOUS WEATHER EVENTS COULD OCCUR... POSSIBLE THUNDERSTORMS WITH DANGEROUS LIGHTNING...SMALL HAIL... STRONG GUSTY WINDS...BRIEF HEAVY RAIN AND LOCAL FLASH FLOODING... AND INCREASED FIRE WEATHER HAZARD DUE TO DRY LIGHTNING... FOR SAN BERNARDINO COUNTY MOUNTAINS... RIVERSIDE COUNTY MOUNTAINS... SAN DIEGO COUNTY MOUNTAINS... FRIDAY AND SATURDAY. CAZ042-043-048-050-057-101300- ORANGE COUNTY COASTAL AREAS- SAN DIEGO COUNTY COASTAL AREAS- SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE- SAN DIEGO COUNTY VALLEYS- SANTA ANA MOUNTAINS AND FOOTHILLS- 1005 AM PDT THU SEP 9 2004 .DAY ONE... TODAY THROUGH TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN... FRIDAY. THROUGH WEDNESDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. MM
The Santa Ana Mts radar (KSOX), 84 km away, was scanning. The volume nearest the first event began at 21:19 UTC.
1 hail. Local standard time, as filed.
Hail 3/4 inch in diameter fell on Pine Cove during a heavy monsoon thunderstorm.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in California in 2004Every state in 2004This day in weather historyWarnings in California, September 2004
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: 5422706.