Alert archive / California / Flash Flood Warnings in 2004

Flash Flood Warning 13, NWS Los Angeles, CA

October 20, 2004Los Angeles County, California

NWS Los Angeles, CA issued this flash flood warning at Oct 20, 2004, 3:00 AM PDT for Los Angeles County, California. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Oct 20, 2004, 3:00 AM PDT (10:00 UTC)
Expired: Oct 20, 2004, 9:00 AM PDT
In force: 6 hr
Issued by: NWS Los Angeles, CA
Area: Counties, with a storm outline in the text

County Los Angeles County, CA

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS56 KLOX 201332 CCA
FFWLOX
CAC037-201600-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
300 AM PDT WED OCT 20 2004

THE NATIONAL WEATHER SERVICE IN OXNARD HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  THE MOUNTAINS OF LOS ANGELES COUNTY...INCLUDING THE
  FOOTHILL...CROWN...AND PADUA BURN AREAS.

* UNTIL 900 AM PDT

* AT 250 AM PDT...SULPHUR MOUNTAIN DOPPLER RADAR INDICATED A BAND OF 
HEAVY RAIN CONTINUING ACROSS MUCH OF LOS ANGELES COUNTY. FOUR TO 
NINE INCHES OF RAIN HAVE ALREADY BEEN REPORTED ACROSS SEVERAL LOS 
ANGELES COUNTY MOUNTAIN OBSERVING SITES. RAINFALL RATES OF ONE HALF 
TO ONE INCH PER HOUR WILL BE COMMON ACROSS THE WARNING AREA THROUGH
THE EARLY MORNING HOURS...WITH LOCAL RATES BETWEEN ONE AND TWO INCHES
PER HOUR POSSIBLE AT TIMES IN THE SAN GABRIEL RANGE.  DUE TO THE
SLOW MOVING NATURE OF THIS SYSTEM AND THE VERY HIGH RAINFALL 
RATES...CONDITIONS WILL REMAIN FAVORABLE FOR FLASH FLOODING... 
INCLUDING MUD AND DEBRIS FLOWS. STORM TOTALS BETWEEN FOUR AND EIGHT 
INCHES WILL BE LIKELY ACROSS THE MOUNTAINS OF LOS ANGELES 
COUNTY...WITH LOCAL AMOUNTS OVER TWELVE INCHES POSSIBLE IN THE SAN 
GABRIEL RANGE.

* LOCATIONS LIKELY TO EXPERIENCE FLASH FLOODING INCLUDE THE          
  FOOTHILL...CROWN...AND PADUA BURN AREAS.

FOLLOW DIRECTIONS OF EMERGENCY PREPAREDNESS OFFICIALS AND EVACUATE IF
REQUESTED TO DO SO. PERSONS IN THE WARNING AREA SHOULD BE PREPARED TO
MOVE IMMEDIATELY...WITHOUT WAITING FOR INSTRUCTIONS...IF HEAVY FLOWS
OF WATER OR DEBRIS ARE OBSERVED IN THEIR AREA.

TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY 
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN 
OXNARD.

LAT...LON 3446 11766 3414 11768 3454 11872 3479 11880

$$

GOMBERG

The office that day

Everything else NWS Los Angeles, CA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 19, 6:15 PM PDT	Flash Flood Warning	LOX	Santa Barbara	2 hr
Oct 19, 9:45 PM PDT	Flash Flood Warning	LOX	Los Angeles, Ventura	6 hr

Nearby

Flash Flood Warnings in California, 2004 Every flash flood warning in 2004

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.