Alert archive / Arizona / Flash Flood Warnings in 1996

Flash Flood Warning 3, NWS Las Vegas, NV

July 10, 1996Mohave County, Arizona

NWS Las Vegas, NV issued this flash flood warning at Jul 10, 1996, 4:28 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 counties it named.

The facts

Issued
Jul 10, 1996, 4:28 PM MST (23:28 UTC)
Expired
Jul 10, 1996, 6:30 PM MST
In force
2 hr
Issued by
NWS Las Vegas, NV
Area
Whole counties

County Mohave County, AZ

The nearest sounding before it

Flgstf/Belemont, AZ (KFGZ), launched 12:00Z, 11.5 hours before the alert went out and 185 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 1996-07-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 181 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 1996-07-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -14 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
181 J/kg
Mixed-layer CIN
-70 J/kg
Mixed-layer LCL
1391 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-14 m²/s²
0-3 km storm-relative helicity
-14 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 
TTAA00 KLAS 102333
FFWLAS
AZC015-110130-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
428 PM PDT (428 PM MST) WED JUL 10 1996
 
THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  630 PM PDT (630 PM MST)
FOR PEOPLE IN THE FOLLOWING LOCATIONS......
 
IN NORTHWEST ARIZONA
 
   ...CENTRAL MOHAVE COUNTY
 
AT 425 PM...LAS VEGAS DOPPLER RADAR INDICATED VERY STRONG
THUNDERSTORMS OVER CENTRAL MOHAVE COUNTY EXTENDING FROM NEAR
DOLAN SPRINGS SOUTHEAST TO NEAR KINGMAN.  FLASH FLOODING HAS
BEEN REPORTED BY THE MOHAVE COUNTY SHERIFF ON HIGHWAY 66
NORTHEAST OF KINGMAN.  RADAR RAINFALL ESTIMATES OF NEARLY AN
INCH AND A HALF HAVE BEEN INDICATED IN THIS AREA.  KINGMAN
AIRPORT REPORTED NEARLY A HALF INCH OF RAIN IN THE PAST 20
MINUTES ENDING AT 430 PM.  THE THUNDERSTORM ACTIVITY WAS MOVING
TO THE WEST AT 10 MPH.
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT.  MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES.  DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS
THE ROADWAY.  NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL
ONE...ON FOOT.  TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.
 
KOSIER

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 Las Vegas, NV wrote its last area forecast discussion before this flash flood warning went out at Jul 10, 1:52 PM MST, 2 hours 36 minutes earlier.

Area forecast discussion, Jul 10, 1:52 PM MST, 2 hours 36 minutes before
MOJAVE DESERT/SOUTHERN GREAT BASIN AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
150 PM PDT WED JUL 10 1996

LOTS OF ACTIVITY ACROSS ENTIRE CWA THIS AFTERNOON SO WILL KEEP THIS
SHORT.  RADAR AND STLT CONTINUE TO SHOW T-STORM ACTIVITY ACROSS MUCH
OF AREA WITH FLASH FLOODING REPORTED AT LEE CANYON AT MT CHARLESTON
WITH OVER TWO INCHES IN UNDER TWO HOURS.  PER COOR WITH RNO/EKO WILL
ISSUE FF WATCH UNTIL 9 PM THIS EVENING.  PER COOR WITH PHX HAVE
ISSUED FF WATCH FOR MOHAVE CNTY TIL 10 PM.  UPPER LOW OFF NRN BAJA CA
FCST TO DRIFT NW AND UPPER HIGH POSITION FAVORABLE FOR CONTINUED
ACTIVITY THU INTO THU NIGHT WITH AMPLE MSTR AND DYNAMICS.  AS RDG
BECOMES ORIENTED MORE E-W EXPECT SLIGHT DECREASE IN ACTIVITY FRI.
LAS 2121.  KOSIER

In the hours before

Special weather statement, Jul 10, 11:08 AM MST, 5 hours 20 minutes before
NVZ009-008-AZZ001-002-003-110515-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1107 AM PDT (1107 AM MST) WED JUL 10 1996

...STRONG THUNDERSTORMS DEVELOPING OVER SOUTHERN NEVADA AND
NORTHWEST ARIZONA...

AT 11 AM...LAS VEGAS DOPPLER RADAR INDICATED STRONG THUNDERSTORMS
OVER THE SPRING MOUNTAINS OF EXTREME SOUTHERN NEVADA NEAR MT
CHARLESTON AS WELL AS EASTERN MOHAVE COUNTY ARIZONA ABOUT 10 MILES
EAST OF KINGMAN. THESE THUNDERSTORMS WILL LIKELY BE ACCOMPANIED BY
BRIEF HEAVY RAIN...WIND GUSTS NEAR 50 MPH...HAIL AND DANGEROUS
LIGHTNING.  THE THUNDERSTORMS SHOWED VERY LITTLE MOVEMENT AT THIS
TIME.

ADDITIONAL THUNDERSTORMS ARE EXPECTED ACROSS THE REMAINDER OF
SOUTHERN NEVADA AS WELL AS NORTHWEST ARIZONA THIS AFTERNOON AND
EVENING.

PERSONS PLANNING OUTDOOR ACTIVITIES...ESPECIALLY IN THE MOUNTAINS
OR ON LAKE MEAD SHOULD BE ALERT FOR THUNDERSTORM DEVELOPMENT
THIS AFTERNOON AND BE PREPARED TO MOVE QUICKLY TO A PLAxCE OF
SAFETY.

KOSIER

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 10, 3:30 PM MSTSevere Thunderstorm WarningVEFMohave60 min

Nearby

Flash Flood Warnings in Arizona, 1996Every flash flood warning in 1996

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.