Alert archive / Arizona / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 13, NWS Las Vegas, NV
NWS Las Vegas, NV issued this severe thunderstorm warning at Aug 12, 2001, 3:36 PM MST for Mohave County, Arizona; Clark County, Nevada. It was in force for 54 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
- Aug 12, 2001, 3:36 PM MST (22:36 UTC)
- Expired
- Aug 12, 2001, 4:30 PM MST
- In force
- 54 min
- Issued by
- NWS Las Vegas, NV
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Mohave County, AZ, Clark County, NV
The radar
The Las Vegas radar (KESX), 48 km from the middle of the area, began a volume at 22:36 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.
The nearest sounding before it
Mercury/Desert R, NV (KDRA), launched 12:00Z, 10.6 hours before the alert went out and 153 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.
- Mixed-layer CAPE
- 178 J/kg
- Mixed-layer CIN
- -210 J/kg
- Mixed-layer LCL
- 3431 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 12 m²/s²
- 0-3 km storm-relative helicity
- 37 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
142
WUUS55 KVEF 122239
SVRLAS
AZC015-NVC003-122330-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
336 PM MST SUN AUG 12 2001
THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
WESTERN MOHAVE COUNTY IN NORTHWEST ARIZONA
THIS INCLUDES THE FOLLOWING LOCATIONS...BULLHEAD CITY...CHLORIDE...
GOLDEN VALLEY...KINGMAN...MEADVIEW...NEW KINGMAN-BUTLER...SOUTH
COVE...YUCCA...HOOVER DAM
EASTERN CLARK COUNTY IN SOUTHERN NEVADA
THIS INCLUDES THE FOLLOWING LOCATIONS...BOULDER CITY...CALLVILLE
BAY...CAL NEV ARI...COTTONWOOD COVE...ECHO BAY...LAS VEGAS BAY...
LAUGHLIN...LOGANDALE...MOAPA...OVERTON...OVERTON BEACH...
SEARCHLIGHT
* UNTIL 430 PM MST(430 PM PDT)
* AT 336 PM MST(336 PM PDT)...NATIONAL WEATHER SERVICE DOPPLER
RADAR INDICATED SEVERAL SEVERE THUNDERSTORMS OVER EASTERN CLARK
AND WESTERN MOHAVE COUNTY. THE MOST INTENSE STORMS WERE NEAR
OVERTON...BETWEEN KINGMAN AND DOLAN SPRINGS...AND FROM BOULDER CITY
TO NEAR SEARCHLIGHT. THE STORMS OVER WESTERN MOHAVE COUNTY WERE
MOVING SOUTHWEST AT 10 MPH...WHILE THE STORMS OVER EASTERN CLARK
COUNTY SHOWED LITTLE MOVEMENT.
THESE ARE DANGEROUS STORMS. IF YOU ARE IN 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. REMEMBER...A FLASH
FLOOD WATCH IS ALSO IN EFFECT FOR THE WARNED AREA UNTIL 400 AM
MONDAY.
LAT...LON 3673 11464 3633 11461 3609 11491 3555 11523
3476 11414 3486 11374 3677 11400The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 1:38 PM MST | Severe Thunderstorm Warning | VEF | Mohave | 52 min |
| Aug 12, 2:27 PM MST | Severe Thunderstorm Warning | VEF | Mohave | 63 min |
| Aug 12, 4:32 PM MST | Severe Thunderstorm Warning | VEF | Mohave | 58 min |
| Aug 12, 3:59 PM MST | Flash Flood Warning | VEF | Clark | 3 hr |
Nearby
Severe Thunderstorm Warnings in Arizona, 2001Severe Thunderstorm Warnings in Nevada, 2001Every severe thunderstorm warning in 2001
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; radar from the NEXRAD Level II archive.