Alert archive / California / Flash Flood Warnings in 2001

Flash Flood Warning 3, NWS Hanford, CA

July 7, 2001Kern County, California

NWS Hanford, CA issued this flash flood warning at Jul 7, 2001, 3:26 PM PDT for Kern County, California. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
Jul 7, 2001, 3:26 PM PDT (22:26 UTC)
Expired
Jul 7, 2001, 5:30 PM PDT
In force
2 hr
Issued by
NWS Hanford, CA
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Kern County, CA

The nearest sounding before it

Mercury/Desert R, NV (KDRA), launched 12:00Z, 10.4 hours before the alert went out and 223 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Mercury/Desert R, NV at 12:00Z on 2001-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 139 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Mercury/Desert R, NV at 12:00Z on 2001-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 56 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
139 J/kg
Mixed-layer CIN
-69 J/kg
Mixed-layer LCL
950 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
56 m²/s²
0-3 km storm-relative helicity
38 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

000 
WGUS56 KHNX 072228
FFWFAT

CAC029-080030-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY CA
326 PM PDT SAT JUL 7 2001

THE NATIONAL WEATHER SERVICE IN HANFORD CA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EAST CENTRAL KERN COUNTY IN CENTRAL CALIFORNIA

* UNTIL 530 PM PDT

* AT 319 PM PDT...WEATHER SERVICE DOPPLER RADAR INDICATED 
THUNDERSTORMS WITH VERY HEAVY RAIN FROM CALIFORNIA CITY NORTH TO THE 
INYOKERN AREA. 

* OTHER LOCATIONS IN THE WARNING INCLUDE RED ROCK CANYON STATE PARK.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF CREEKS
AND STREAMS...ROADS AND ROADSIDE CULVERTS. THE HEAVY RAINS COULD ALSO
TRIGGER ROCK AND MUDSLIDES IN STEEP TERRAIN.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.
MOVE TO HIGHER GROUND.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE. IF YOUR VEHICLE STALLS, ABANDON IT IMMEDIATELY AND SEEK
HIGHER GROUND.

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

LAT...LON 3513 11810 3512 11769 3569 11773 3569 11800

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Hanford, CA wrote its last area forecast discussion before this flash flood warning went out at Jul 7, 3:00 PM PDT, 26 minutes earlier.

Area forecast discussion, Jul 7, 3:00 PM PDT, 26 minutes before
INTERIOR CENTRAL CALIFORNIA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY - HANFORD CA
300 PM PDT SAT JUL 7 2001

CONVECTION QUITE ACTIVE OVER ALL HIGH TERRAIN AND THE DESERT PORTIONS
OF INTERIOR CENTRAL CALIFORNIA CWFA. BEST CONVECTION APPEARS TO BE
CENTERED JUST SOUTH OF KERN COUNTY LINE IN THE LOS PADRES AND IN THE
ANTELOPE VALLEY. SPOTTER REPORTS INDICATE THAT LOCALLY HEAVY RAIN
OCCURRING VICINITY OF ROSAMOND WITH A LOT OF STANDING WATER.
PRECIPITABLE WATER IN EXCESS OF 1.5 INCHES IN MOIST SOUTHERLY PLUME
AIDED BY WEAK UPPER AIR DYNAMICS AND DE-STABILIZATION WITH DAYTIME
HEATING. EXPECT CONVECTION TO DIMINISH BY LATE EVENING BEFORE STARTING
THE CYCLE ALL OVER AGAIN ON SUNDAY. VERY SLOW DRYING TREND FROM THE
SOUTH SO EXPECT CONVECTION ON SUNDAY TO HAVE SLIGHTLY LESS AREAL
COVERAGE THAN TODAY.

TRENDS IN MODELS GENERALLY FAVORING A SLOW TURN TO SOUTHWEST OVER THE
NEXT 72 HOURS. HUMIDITIES AT THE UPPER LEVELS WILL DROP QUICKER THAN
LOW LEVELS BUT STILL EXPECT AFTERNOON CONVECTION TO FIRE OFF OVER THE
MOUNTAINS THROUGH TUESDAY. CONVECTION ENDING IN THE DESERT BY MONDAY.
WITH DRYING EXPECT MAXIMUM TEMPERATURES TO CREEP UP SLIGHTLY WHILE
MINIMUMS LOWER THROUGH THE FIRST 72 HOURS. WEAK SYNOPTIC COOLING AT
MIDWEEK TO ALLOW MAX TEMPS TO DIP BEFORE SOME CLIMBING TOWARD THE END OF
THE WEEK. POPS FAT 0000 BFL 1110 YNP 6554

.HNX...FLASH FLOOD WATCH FROM UNTIL 9:00 PM THIS EVENING FOR
       ZONES 95>99.

 GUDGEL

Nearby

Flash Flood Warnings in California, 2001Every flash flood warning in 2001

Sources

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.