Alert archive / Nevada / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 56, NWS Las Vegas, NV

August 12, 2021Lincoln County, Nevada

NWS Las Vegas, NV issued this severe thunderstorm warning at Aug 12, 2021, 4:02 PM PDT for Lincoln County, Nevada. It was in force for 43 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 12, 2021, 4:02 PM PDT (23:02 UTC)
Expired
Aug 12, 2021, 4:45 PM PDT
In force
43 min
Issued by
NWS Las Vegas, NV
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Lincoln County, NV

The radar

The Cedar City radar (KICX), 117 km from the middle of the area, began a volume at 23:05 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

Las Vegas, NV (KVEF), launched 12:00Z, 11.0 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-pSkew-T log-p diagram, Las Vegas, NV at 12:00Z on 2021-08-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 533 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Las Vegas, NV at 12:00Z on 2021-08-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -22 square meters per square second.1939Sfc1 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
533 J/kg
Mixed-layer CIN
-365 J/kg
Mixed-layer LCL
2225 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-22 m²/s²
0-3 km storm-relative helicity
70 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

726 
WUUS55 KVEF 122302
SVRVEF
NVC017-122345-
/O.NEW.KVEF.SV.W.0056.210812T2302Z-210812T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Las Vegas NV
402 PM PDT Thu Aug 12 2021

The National Weather Service in Las Vegas has issued a

* Severe Thunderstorm Warning for...
  East central Lincoln County in south central Nevada...

* Until 445 PM PDT.

* At 402 PM PDT, a severe thunderstorm was located 9 miles southwest
  of Beaver Dam State Park, or 10 miles southwest of Beaver Dam, and
  is nearly stationary.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs and trees.

* Locations impacted include...
  Beaver Dam State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3760 11411 3743 11405 3739 11405 3723 11424
      3747 11448
TIME...MOT...LOC 2302Z 049DEG 4KT 3744 11422 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Outler
2 follow-up statements
366 
WWUS55 KVEF 122320
SVSVEF

Severe Weather Statement
National Weather Service Las Vegas NV
420 PM PDT Thu Aug 12 2021

NVC017-122345-
/O.CON.KVEF.SV.W.0056.000000T0000Z-210812T2345Z/
Lincoln NV-
420 PM PDT Thu Aug 12 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM PDT
FOR EAST CENTRAL LINCOLN COUNTY...

At 419 PM PDT, a severe thunderstorm was located 10 miles southwest
of Beaver Dam State Park, or 11 miles southwest of Beaver Dam, and 
is nearly stationary.  Strong wind gusts remain possible with this 
storm. 

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs and trees.

Locations impacted include...
Beaver Dam State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3760 11411 3743 11405 3739 11405 3723 11424
      3747 11448
TIME...MOT...LOC 2319Z 049DEG 4KT 3743 11424 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Outler
473 
WWUS55 KVEF 122336
SVSVEF

Severe Weather Statement
National Weather Service Las Vegas NV
436 PM PDT Thu Aug 12 2021

NVC017-122346-
/O.EXP.KVEF.SV.W.0056.000000T0000Z-210812T2345Z/
Lincoln NV-
436 PM PDT Thu Aug 12 2021

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL LINCOLN COUNTY
WILL EXPIRE AT 445 PM PDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.

LAT...LON 3760 11411 3743 11405 3739 11405 3723 11424
      3747 11448
TIME...MOT...LOC 2336Z 049DEG 4KT 3742 11426 

$$

Outler

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 12, 4:38 PM PDTFlash Flood Warning Considerable damage threatVEFLincoln3 hr

Nearby

Severe Thunderstorm Warnings in Nevada, 2021Every severe thunderstorm warning in 2021

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.