Alert archive / Arizona / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 35, NWS Las Vegas, NV

August 15, 2012Mohave County, Arizona

NWS Las Vegas, NV issued this severe thunderstorm warning at Aug 15, 2012, 4:13 PM MST for Mohave County, Arizona. It was in force for 36 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 15, 2012, 4:13 PM MST (23:13 UTC)
Expired
Aug 15, 2012, 4:49 PM MST
In force
36 min
Issued by
NWS Las Vegas, NV
Area
Storm-based polygon

County Mohave County, AZ

The nearest sounding before it

Flgstf/Belemont, AZ (KFGZ), launched 12:00Z, 11.2 hours before the alert went out and 176 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 2012-08-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 22 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Flgstf/Belemont, AZ at 12:00Z on 2012-08-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 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
22 J/kg
Mixed-layer CIN
-118 J/kg
Mixed-layer LCL
1908 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
49 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.

812 
WUUS55 KVEF 152313
SVRVEF
AZC015-160000-
/O.NEW.KVEF.SV.W.0035.120815T2313Z-120816T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
413 PM MST WED AUG 15 2012

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTH CENTRAL MOHAVE COUNTY IN NORTHWEST ARIZONA...

* UNTIL 500 PM MST.

* AT 406 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THIS STORM WAS LOCATED OVER SOUTH CENTRAL MOHAVE   
COUNTY...OR 8 MILES NORTHWEST OF WIKIEUP...NEAR LUCHIAS RESTAURANT 
AND WAS MOVING SOUTH AT 5 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF SOUTHERN MOHAVE COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM IS CAPABLE OF PRODUCING DAMAGING WINDS WHICH CAN BRING
DOWN TREES AND POWER LINES AND CAUSE SIGNIFICANT BLOWING DUST AND
DEBRIS. IN ADDITION...HAIL AND LIGHTNING ARE LIKELY. LIGHTNING CAN
KILL! TAKE COVER IN A SUBSTANTIAL SHELTER AND STAY AWAY FROM WINDOWS
UNTIL THE STORM PASSES.

REPORT SEVERE WEATHER BY POSTING YOUR REPORT TO THE LAS VEGAS
NATIONAL WEATHER SERVICE FACEBOOK PAGE...OR BY USING THE TWITTER
HASHTAG...NWSVEGAS.

&&

LAT...LON 3473 11356 3470 11375 3488 11378 3492 11364
TIME...MOT...LOC 2313Z 358DEG 4KT 3480 11368

$$
KENNEDY
2 follow-up statements
962 
WWUS55 KVEF 152330
SVSVEF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
430 PM MST WED AUG 15 2012

AZC015-160000-
/O.CON.KVEF.SV.W.0035.000000T0000Z-120816T0000Z/
MOHAVE AZ-
430 PM MST WED AUG 15 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM MST
FOR SOUTH CENTRAL MOHAVE COUNTY...

AT 424 PM MST...A SEVERE THUNDERSTORM WAS COLLAPSING OVER SOUTH 
CENTRAL MOHAVE COUNTY JUST WEST OF ROUTE 93...7 MILES NORTHWEST OF 
WIKIEUP. DAMAGING OUTFLOW WINDS FROM THIS STORM ARE EXPECTED TO BE 
IN EXCESS OF 60 MPH.

LOCATIONS IMPACTED INCLUDE...ROUTE 93 NORTH OF WIKIEUP TO MILE 
MARKER 109...INCLUDING LUCHIAS RESTAURANT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM IS CAPABLE OF PRODUCING DAMAGING WINDS WHICH CAN BRING
DOWN TREES AND POWER LINES AND CAUSE SIGNIFICANT BLOWING DUST AND
DEBRIS. IN ADDITION...HAIL AND LIGHTNING ARE LIKELY. LIGHTNING CAN
KILL! TAKE COVER IN A SUBSTANTIAL SHELTER AND STAY AWAY FROM WINDOWS
UNTIL THE STORM PASSES.

REPORT SEVERE WEATHER BY POSTING YOUR REPORT TO THE LAS VEGAS
NATIONAL WEATHER SERVICE FACEBOOK PAGE...OR BY USING THE TWITTER
HASHTAG...NWSVEGAS.

&&

LAT...LON 3473 11356 3470 11375 3488 11378 3492 11364
TIME...MOT...LOC 2325Z 358DEG 4KT 3479 11368

$$

KENNEDY
897 
WWUS55 KVEF 152349
SVSVEF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
449 PM MST WED AUG 15 2012

AZC015-152356-
/O.CAN.KVEF.SV.W.0035.000000T0000Z-120816T0000Z/
MOHAVE AZ-
449 PM MST WED AUG 15 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL MOHAVE COUNTY 
ALONG ROUTE 93 NORTH OF WIKIEUP IS CANCELLED...

THUNDERSTORMS HAVE WEAKENED AND THERE IS NO LONGER A THREAT OF 
SEVERE WEATHER...THEREFORE THE SEVERE THUNDERSTORM WARNING FOR THIS 
AREA HAS BEEN CANCELLED. 

LAT...LON 3473 11356 3470 11375 3488 11378 3492 11364
TIME...MOT...LOC 2346Z 358DEG 4KT 3477 11368

$$

KENNEDY

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 15, 1:51 PM MSTFlash Flood WarningVEFMohave114 min

Nearby

Severe Thunderstorm Warnings in Arizona, 2012Every severe thunderstorm warning in 2012

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.