Flash Flood Warning 43, NWS Las Vegas, NV

Issued

Aug 30, 1997, 12:00 PM MST (19:00 UTC)

Expired

Aug 30, 1997, 1:00 PM MST

In force

60 min

Issued by

NWS Las Vegas, NV

Area

Whole counties

County Mohave County, AZ

000 
TTAA00 KLAS 301903
FFWLAS
AZC015-302000-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM AND FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
1200 PM PDT SAT AUG 30 1997

THE NATIONAL WEATHER SERVICE IN LAS VEGAS NV HAS ISSUED A SEVERE
THUNDERSTORM AND FLASH FLOOD WARNING EFFECTIVE UNTIL 100 PM PDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN NORTHWEST ARIZONA

  ...EASTERN MOHAVE COUNTY

AT 1200 NOON...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
WITH HEAVY RAIN AND HAIL OVER HUALAPAI PEAK SOUTHEAST OF
KINGMAN. THE STORM NEAR STATIONARY.  THE RANGER AT THE COUNTY
PARK REPORTED VERY HEAVY RAIN AND FREQUENT LIGHTNING TO THE
NORTH OF THE PARK. THIS STORM IS CAPABLE OF PRODUCING VERY HEAVY
RAIN IN EXCESS OF ONE INCH AN HOUR AND HAIL THREE QUARTERS OF AN
INCH OR LARGER.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 57 MPH
...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
A FLASH FLOOD WARNING MEANS THAT FLOODING IS HOCCURRING OR IS
IMMINENT.  DO NOT CAMP OR PARK YOUR VEHICLE NEAR STREAMS OR
OTHER AREAS SUBJECT TO FLASH FLOODING.

NEMETH

NWS Las Vegas, NV wrote its last area forecast discussion before this flash flood warning went out at Aug 30, 8:47 AM MST, 3 hours 13 minutes earlier.

MOJAVE DESERT/SOUTHERN GREAT BASIN AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
845 AM PDT SAT AUG 30 1997

NO CHGS PLANNED TO CURRENT FCST WITH MAIN WX CONCERNS TDA FOCUSED
OVR NW AZ.  UPR HIGH VCNTY TX PANHANDLE AND LOW OFF BAJA COAST CONT
TO FUNNEL DEEP MSTR INTO CNTRL/ERN AZ ON ANTICYCLONIC FLOW.
DEWPOINTS REMAIN VRY HIGH ALONG AN AXIS FRM THE LWR CO RVR VLY NWD
TO IGM. HOWEVER...THERE HAS NOT BEEN A SIG CHG UP OR DWN IN THE
DEWPOINT VALUES FRM 24 HRS AGO AND NEITHER THE YUM OR LAS VAD WIND
PROFILES SHOW A DEEP SURGE (MAINLY LESS THAN 5KFT).

WHAT IS DIFFERENT FRM YSDTY IS THE AMT OF MID LVL MSTR AND
INSTABILITY PRESENT OVR NW AZ WHICH IS ACCOMPANIED BY A VORT IN WRN
AZ VCNTY PRC.  IR STLT ALREADY SHOWS CLDS DVLPG OVR MOHAVE CO SO
WILL CONT TO MONITOR FOR PSBL EARLY DEVELOPMENT OF TSTMS.  AS
POINTED OUT BY RNO...VBG SOUNDING SHOWS MSTR FRM REMNANTS OF JIMENA
CONFINED TO HIGH LVLS AND DOES NOT POSE MUCH OF A CONCERN.
INTERESTING TO NOTE THAT THE APCH OF THIS HIGH LVL MSTR SIGNALS A
MORE SWLY FLOW ALOFT AND IT DOES APPEAR TO BE SHUNTING THE MSTR
PLUME IN AZ TO THE E.  DESPITE THAT...12Z ETA LOOKS VRY BULLISH ON
INCRG MSTR AND INSTABILITY INTO SRN NV SUN ON. STRENGTHENING S-SELY
FLOW. WILL TAKE A CLOSER LOOK AT THAT FOR AFT PACKAGE.  LAS 011.

NEMETH

SRN NV...NONE
ERN CA...NONE
NW AZ ...NONE

Flash Flood Warnings in Arizona, 1997Every flash flood warning in 1997

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.