Severe Thunderstorm Warning 15, NWS Las Vegas, NV

Issued

Aug 12, 2001, 5:28 PM MST (00:28 UTC)

Expired

Aug 12, 2001, 6:30 PM MST

In force

62 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 Las Vegas radar (KESX), 121 km from the middle of the area, began a volume at 00:28 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

955 
WUUS55 KVEF 130039 CCA
SVRLAS
AZC015-CAC071-130130-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTION FOR LAKE HAVASU CITY LOCATION
NATIONAL WEATHER SERVICE LAS VEGAS NV
528 PM PDT SUN AUG 12 2001

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN MOHAVE COUNTY IN NORTHWEST ARIZONA
  THIS INCLUDES THE FOLLOWING LOCATIONS...TOPOCK...YUCCA AND LAKE
  HAVASU CITY
  SOUTHEASTERN SAN BERNARDINO COUNTY IN SOUTHEAST CALIFORNIA
  THIS INCLUDES THE FOLLOWING LOCATIONS...NEEDLES...PARKER
  DAM...VIDAL JUNCTION

* UNTIL 630 PM PDT(630 PM MST)

* AT 528 PM PDT(528 PM MST)...NATIONAL WEATHER SERVICE DOPPLER RADAR
  INDICATED SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM 26 MILES
  EAST OF PARKER DAM TO 6 MILES WEST OF NEEDLES...MOVING SOUTH AT 20
  MPH.

THESE ARE DANGEROUS STORMS. IF YOU ARE THEIR PATH YOU SHOULD PREPARE 
FOR DAMAGING WINDS IN EXCESS OF 60 MPH...LARGE HAIL...AND DEADLY 
LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO SHELTER...PREFERABLY INSIDE 
A STRONG BUILDING BUT AWAY FROM WINDOWS.

LAT...LON 3500 11413 3501 11485 3463 11509 3414 11463
          3432 11372

NWS Las Vegas, NV wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 12, 3:29 PM MST, 1 hour 59 minutes earlier.

MOJAVE DESERT/SOUTHERN GREAT BASIN AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
329 PM PDT SUN AUG 12 2001

SYNOPSIS...A DISTURBANCE EMBEDDED IN SOUTHEAST FLOW ALOFT WILL MOVE
THROUGH NORTHWEST ARIZONA AND BRUSH SOUTHERN NEVADA TONIGHT INTO
MONDAY MORNING...RESULTING IN NUMEROUS THUNDERSTORMS WITH LOCALLY
HEAVY RAIN. A DRYING TREND WILL BEGIN MONDAY AFTERNOON AND CONTINUE
THROUGH THE REMAINDER OF THE WEEK.

DISCUSSION...NOT MUCH TIME TO DISCUSS DETAILS AS THE WEATHER IS
ACTIVE AND WERE ALREADY IN WARNING MODE. STORMS MOVING OFF RIM INTO
HIGH CAPE AIR OVER CENTRAL MOHAVE COUNTY HAVE PRODUCED 70 MPH WINDS
AND LARGE HAIL. STORM TOP DIVERGENCE AND VIL ARE ABOUT AS HIGH AS
IVE SEEN IN THIS PART OF THE COUNTRY. SLC FORECASTER ALSO RELAYED
THAT THE AMBER PROGRAM FLASH FLOOD GUIDANCE OVER SRN NV/NW AZ IS THE
HIGHEST HE HAS SEEN THIS SUMMER. SEVERE THREAT WILL BEGIN TO SHIFT
TO MORE OF A FLASH FLOOD SITUATION THIS EVENING AND WATCH HAS BEEN
HOISTED FOR MOHAVE...CLARK...SOUTHERN NYE...EXTREME EASTERN SAN
BERNARDINO UNTIL 400 AM. LINE OF NW AZ STORMS THESE WILL COLLIDE
WITH STORMS FORMING OVER EXTREME SOUTHERN NEVADA SOON. LAKE MEAD...
LOWER COLORADO RIVER VALLEY...AND SOUTHERN MOHAVE COUNTY WILL BE
FIRST UP IN FLASH FLOOD THREAT WITH REMAINDER OF CLARK COUNTY...FAR
SOUTHERN NYE COUNTY...AND EXTREME EASTERN SAN BERNARDINO COUNTY TO
FOLLOW. INVERTED TROUGH TRACKING WNW ABOUT AS ETA PREDICTED. ASSOCD
FORCING COULD AID IN ORGANIZATION AND PERSISTENCE OF STORMS WELL
INTO THE NIGHT. STILL LOOKS LIKE WESTERLIES WILL BEGIN TO DOMINATE
BY TOMORROW...USHERING IN AN EXTENDED DRYING TREND. HAVE BEEFED UP
POPS FOR TONIGHT AND BACKED OFF TO SCTD MRNG SHOWERS FOR MONDAY...
ESSENTIALLY SWAPPING OUT LAST NIGHTS MONDAY WORDING FOR SUNDAY
NIGHT AND VICE-VERSA.

RUNK

.LAS...FLASH FLOOD WATCH IN EFFECT UNTIL 400 AM PDT FOR PARTS OF
SOUTHERN NEVADA AND NORTHWEST ARIZONA. SEE LATEST STATEMENTS FOR
DETAILS.

Severe Thunderstorm Warnings in Arizona, 2001Severe Thunderstorm Warnings in California, 2001Every severe thunderstorm warning in 2001

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.