Alert archive / Arizona / Flash Flood Warnings in 2000

Flash Flood Warning 4, NWS Las Vegas, NV

August 16, 2000Mohave County, Arizona

NWS Las Vegas, NV issued this flash flood warning at Aug 16, 2000, 4:45 PM MST for Mohave County, Arizona. 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
Aug 16, 2000, 4:45 PM MST (23:45 UTC)
Expired
Aug 16, 2000, 6:45 PM MST
In force
2 hr
Issued by
NWS Las Vegas, NV
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Mohave County, AZ

The nearest sounding before it

Flgstf/Belemont, AZ (KFGZ), launched 12:00Z, 11.8 hours before the alert went out and 206 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, Flgstf/Belemont, AZ at 12:00Z on 2000-08-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Flgstf/Belemont, AZ at 12:00Z on 2000-08-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 12 square meters per square second.1939587897117Sfc1 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
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2220 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
12 m²/s²
0-3 km storm-relative helicity
-120 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.4

Open this sounding in Storm Lab

The text

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

000 
WGUS55 KVEF 162349 COR
FFWLAS
AZC015-170245-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
445 PM MST WED AUG 16 2000

...CORRECTED FOR AFFECTED LOCATIONS...

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EXTREME SOUTHERN CLARK COUNTY NEVADA
  EXTREME EASTERN SAN BERNARDINO COUNTY CALIFORNIA
  EXTREME WESTERN MOHAVE COUNTY ARIZONA
  
* THIS INCLUDES THE FOLLOWING LOCATIONS:
  LAUGHLIN NEVADA...NEEDLES CALIFORNIA...TOPOCK ARIZONA

* UNTIL 745 PM MST

* AT 445 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
AN AREA OF THUNDERSTORMS WITH VERY HEAVY RAIN ALONG A LINE EXTENDING 
FROM NEAR LAUGHLIN NEVADA ATO 5 MILES WEST OF NEEDLES CALIFORNIA...MOVING
SOUTHEAST AT 5-10 MPH. THESE STORMS HAVE A HISTORY OF PRODUCING 
HEAVY RAIN...GUSTY WINDS AND SMALL HAIL.

LAT...LON 3536 11453 3524 11437 3606 11310 3638 11349

NNNN

The office that day

Everything else NWS Las Vegas, NV issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 16, 3:32 PM MSTFlash Flood WarningVEFMohave118 min

Nearby

Flash 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.