Alert archive / Arizona / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 8, NWS Las Vegas, NV

July 31, 2000Mohave County, Arizona; Clark County, Nevada

NWS Las Vegas, NV issued this severe thunderstorm warning at Jul 31, 2000, 7:44 PM MST for Mohave County, Arizona; Clark County, Nevada. It was in force for 46 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: Jul 31, 2000, 7:44 PM MST (02:44 UTC)
Expired: Jul 31, 2000, 8:30 PM MST
In force: 46 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 nearest sounding before it

Mercury/Desert R, NV (KDRA), launched 00:00Z, 2.7 hours before the alert went out and 171 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1275 J/kg
Mixed-layer CIN: -30 J/kg
Mixed-layer LCL: 3514 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 47 m²/s²
0-3 km storm-relative helicity: 101 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 5.1

Open this sounding in Storm Lab

The text

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

000 
WUUS55 KVEF 010248
SVRLAS
AZC015-NVC003-010330-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
744 PM MST MON JUL 31 2000

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WEST CENTRAL MOHAVE COUNTY IN NORTHWEST ARIZONA
  SOUTH CENTRAL CLARK COUNTY IN SOUTHERN NEVADA

* UNTIL 830 PM MST(830 PM PDT)

* AT 744 PM MST(744 PM PDT)...NATIONAL WEATHER SERVICE DOPPLER RADAR
  INDICATED A SEVERE THUNDERSTORM 6 MILES NORTHWEST OF DOLAN         
  SPRINGS...OR ABOUT 20 MILES NORTHWEST OF CHLORIDE...MOVING WEST AT 
  20 MPH. THIS STORM WILL AFFECT THE AREAS OF DOLAN SPRINGS...U.S.   
  HIGHWAY 93 AND THE LAKE MEAD NATIONAL RECREATION AREA BY 830 PM 
  MST (PDT).

IF SEVERE WEATHER APPROACHES YOUR AREA...GO INSIDE A STURDY SHELTER
AND STAY AWAY FROM WINDOWS. REMEMBER...A SEVERE THUNDERSTORM CAN
PRODUCE LARGE HAIL...DAMAGING WINDS...DEADLY LIG HTNING...AND HEAVY
RAIN.

LAT...LON 3577 11470 3543 11469 3547 11426 3577 11428

NNNN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 31, 6:46 PM MST	Severe Thunderstorm Warning	VEF	Mohave	59 min
Aug 1, 3:00 PM MST	Severe Thunderstorm Warning	VEF	Mohave	60 min
Aug 1, 3:25 PM MST	Severe Thunderstorm Warning	VEF	Mohave	65 min

Nearby

Severe Thunderstorm Warnings in Arizona, 2000 Severe Thunderstorm Warnings in Nevada, 2000 Every severe thunderstorm 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.