Flash Flood Warning 5, NWS Los Angeles, CA

Issued

Feb 23, 2000, 11:30 AM PST (19:30 UTC)

Expired

Feb 23, 2000, 1:30 PM PST

In force

2 hr

Issued by

NWS Los Angeles, CA

Area

Whole counties

County Los Angeles County, CA

The Santa Ana Mts radar (KSOX), 71 km from the middle of the area, began a volume at 19:30 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

000 
WGUS56 KLOX 231930
FFWLOX
CAC037-232130-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
1130 AM PST WED FEB 23 2000

THE NATIONAL WEATHER SERVICE IN OXNARD HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE RAFAEL AND SANTA ANITA BURN AREAS OF LOS ANGELES COUNTY

* UNTIL 130 PM PST

* SULPHUR MOUNTAIN DOPPLER RADAR INDICATED VERY HEAVY RAIN MOVING
INTO THE BURN AREAS OF LOS ANGELES COUNTY. HOURLY RAINFALL RATES
EXCEEDING ONE HALF INCH PER HOUR ARE EXPECTED AS THE COLD FRONT
MOVES INTO THE AREA. GIVEN THE AMOUNT OF RAINFALL THAT HAS ALREADY
FALLEN...ANY ADDITIONAL RAINFALL WILL CONTINUE THE THREAT OF FLASH
FLOODING IN THE BURN AREAS OF LOS ANGELES COUNTY.  THE RISK OF
MUD/DEBRIS FLOWS HAS INCREASED AROUND THE FIRE AREAS.

A FLASH FLOOD WARNING MEANS THAT FLASH FLOODING IS OCCURRING OR IS
IMMINENT. MOVE TO HIGHER GROUND IMMEDIATELY IF FLOODING IS ENCOUNTERED.

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. L

$$

WOFFORD/BOWER

NWS Los Angeles, CA wrote its last area forecast discussion before this flash flood warning went out at Feb 23, 9:00 AM PST, 2 hours 30 minutes earlier.

SOUTHWEST CALIFORNIA AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
9 AM PST WED FEB 23 2000

STLT PICS SHOW CDFNT HAS MOVD THRU CNTRL CA PTNS OF DIST AND IS NOW
DOWN TO ABT PT CONCEPTION. TOTALS FOR MOST SLO CNTY SO FAR RNG FROM 1/4
TO 3/4 INCH. THE FNT HAS SLOWD BUT NOT STALLED ATTM AND HVY RN CONTS
ACRS MOST OF SBA CNTY. GAGES AND SPOTTERS ARE REPORTG RNFL AMTS LCLLY
OF 1/2 TO ONE INCH PER HR AND A FLS HAS BEEN ISSUED FOR SBA CNTY. SDB
ASOS IS REPORTG LGT SN AT THE 45 HND FT LVL SINCE ABT 2 AM. CHP REPORTS
ONLY RN SO FAR OVR THE GRAPEVINE. BUT THE TEJON PASS IS ABT 4200 FT AT
THE SUMMIT AND MTN TEMPS ARE SLOWLY LWRG...SO LGT SN CUD BGN THERE AT
ANY TIME. THUS WSW WAS UPDATED TO LWR WRNG LVL FROM 5 TO 4 THSD FT. GUD
SLY LO/MID LVL WNDS INDICATED AHEAD OF FNT BY 88D WND PROFILES SO LOTS
OF ORGPHC ENHANCEMENT XPCD MTNS AND FOOTHILLS OF TRANSVERSE RNG. QPS
ALSO UPDATED TO REFLECT INCR RNFL AMTS. ETA MOVS FNT THRU LA CNTY BY
00Z BUT STG UVV AND AMPLE MSTR AFT FROPA WITH SUPPORT STG CONVECTION...
SO IDEA OF NMRS SHWRS AND PSBL TSTMS THIS AFTN STILL LUKS OK. AS UPR
TROF EXITS EWD AND HGTS INCR TNGT AND THU MRNG...DVV MOVS OVR DIST WITH
SHWRS ENDG. AVN IN THRU 48 HRS IS SMLR BUT A LTL MORE PROGRESSIVE. BOTH
MDLS SMLR WITH NXT SYSTEM DUE OVR DIST THU. THIS SYSTEM MUCH WKR THAN
CURRENT STORM AND CHC POPS LUK OK ATTM. LAX +83. HENDERSON

.LAX...FLASH FLOOD WATCH FOR BURN AREAS (SEE LAXFLSLAX).
       WINTER STORM WARNING (SEE LAXWSWLAX).
       FLOOD ADVIOSRY (SEE LAXFLSLAX).
       SMALL CRAFT ADVISORY (SEE LAXCWFLAX).

Flash Flood Warnings in California, 2000Every flash flood warning in 2000

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.