Alert archive / California / Flash Flood Warnings in 2000

Flash Flood Warning 2, NWS Las Vegas, NV

June 23, 2000San Bernardino County, California; Mohave County, Arizona

NWS Las Vegas, NV issued this flash flood warning at Jun 23, 2000, 6:12 PM PDT for San Bernardino County, California; Mohave County, Arizona. It was in force for 48 min. 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
Jun 23, 2000, 6:12 PM PDT (01:12 UTC)
Expired
Jun 23, 2000, 7:00 PM PDT
In force
48 min
Issued by
NWS Las Vegas, NV
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Mohave County, AZ, San Bernardino County, CA

The nearest sounding before it

Mercury/Desert R, NV (KDRA), launched 00:00Z, 1.2 hours before the alert went out and 228 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 00:00Z on 2000-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 578 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 2000-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 1 square meters per square second.1939Sfc1 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
578 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
3188 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
1 m²/s²
0-3 km storm-relative helicity
-1 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WGUS55 KVEF 240114
FFWVEF
AZC015-CAC071-240300-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
612 PM MST FRI JUN 23 2000

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EXTREME EASTERN SAN BERNARDINO COUNTY IN SOUTHEAST CALIFORNIA
  EXTREME SOUTHWESTERN MOHAVE COUNTY IN NORTHWEST ARIZONA
  THIS INCLUDES THE FOLLOWING LOCATIONS...NEEDLES...MOHAVE VALLEY

* UNTIL 800 PM PDT(800 PM MST)

* AT 612 PM PDT(612 PM MST)...NATIONAL WEATHER SERVICE DOPPLER RADAR
  INDICATED A THUNDERSTORM WITH VERY HEAVY RAIN 8 MILES NORTHWEST
  OF NEEDLES CALIFORNIA...MOVING EAST AT 5 MPH.

* THE THUNDERSTORM WITH EXCESSIVE RAINFALL WILL BE...
  NEAR NEEDLES AND MOHAVE VALLEY BETWEEN 625 AND 700 PM PDT/MST.

RADAR RAINFALL RATES SUGGEST ONE-HALF TO ONE INCH OF RAIN COULD FALL
LOCALLY IN LESS THAN 30 MINUTES. HEAVIEST RAIN IS OCCURRING OVER
I-40 NORTHWEST OF NEEDLES WHERE THE PIUTE WASH DRAINS INTO THE AREA.

BRIEF GUSTY WINDS APPROACHING 50 MPH AND SMALL HAIL MAY ALSO
ACCOMPANY THESE STORMS AS THEY MOVE INTO THE NEEDLES/MOHAVE VALLEY
REGION.

NEVER DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROADWAY.
IT ONLY TAKES A FOOT OR TWO OF FLOWING WATER TO WASH MOST CARS AWAY.
VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.

LAT...LON 3493 11472 3483 11467 3479 11459 3490 11446
          3503 11459

NNNN

Nearby

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

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.