Alert archive / Nevada / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 1, NWS Las Vegas, NV

February 13, 2021Clark County, Nevada

NWS Las Vegas, NV issued this severe thunderstorm warning at Feb 13, 2021, 1:35 PM PST for Clark County, Nevada. It was in force for 40 min. 6 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Feb 13, 2021, 1:35 PM PST (21:35 UTC)
Expired
Feb 13, 2021, 2:15 PM PST
In force
40 min
Issued by
NWS Las Vegas, NV
Area
Storm-based polygon
Hail
0.75 in
Wind
70.0 mph

County Clark County, NV

The radar

The Las Vegas radar (KESX), 57 km from the middle of the area, began a volume at 21:39 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.

What was reported inside it

TimeReportWhereRemark
Feb 13, 1:35 PM PSTTSTM WND DMGNorth Las Vegas Airport, NVSCREENS AT THE WEST WIND DRIVE INS BLOWN OVER AND DAMAGED. DEBRIS BLOWN INTO ROAD AND BLOCKING W CAREY AVE.
Feb 13, 1:35 PM PSTTSTM WND GST 73North Las Vegas Airport, NVREPORTED AT NORTH LAS VEGAS AIRPORT.
Feb 13, 1:36 PM PSTTSTM WND DMG1 Ne North Las Vegas, NVNUMEROUS LARGE VENDOR TENTS DAMAGED AT A LOCAL SWAP MEET.
Feb 13, 1:54 PM PSTTSTM WND DMG4 N Spring Valley, NVTRAFFIC POLE DOWN AT THE CORNER OF TORREY PINES AND W CHARLESTON AVE. REPORTED BY LAS VEGAS FIRE RESCUE.
Feb 13, 1:54 PM PSTTSTM WND GST 64Nellis Afb, NVREPORTED AT NELLIS AIRFORCE BASE.
Feb 13, 1:56 PM PSTTSTM WND GST 623 Sse The Strip, NVREPORTED AT LAS VEGAS AIRPORT.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Las Vegas, NV (KVEF), launched 12:00Z, 9.6 hours before the alert went out and 41 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 2021-02-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2021-02-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 94 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2112 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
94 m²/s²
0-3 km storm-relative helicity
139 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

527 
WUUS55 KVEF 132135
SVRVEF
NVC003-132215-
/O.NEW.KVEF.SV.W.0001.210213T2135Z-210213T2215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Las Vegas NV
135 PM PST Sat Feb 13 2021

The National Weather Service in Las Vegas has issued a

* Severe Thunderstorm Warning for...
  Central Clark County in southern Nevada...

* Until 215 PM PST.

* At 134 PM PST, a severe thunderstorm was located over northwest 
  Las Vegas, moving southeast at 60 mph. Widespread strong wind 
  gusts are expected.

  HAZARD...70 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings.

* Locations impacted include...
  Las Vegas, Henderson, North Las Vegas, Lone Mountain, Anthem,
  Summerlin, The Strip, Nellis AFB, Downtown Las Vegas, East Las
  Vegas, Sam Boyd Stadium, The Motor Speedway, Las Vegas Bay,
  Aliante, Lake Las Vegas, Spring Valley, Centennial Hills, Green
  Valley, Enterprise and Paradise.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.  Strong winds will preceed any rain or thunder. 


&&

LAT...LON 3625 11543 3641 11525 3624 11479 3603 11487
      3593 11505 3606 11534
TIME...MOT...LOC 2134Z 309DEG 51KT 3621 11513 

HAIL...<.75IN
WIND...70MPH
 
$$

Outler
2 follow-up statements
136 
WWUS55 KVEF 132155
SVSVEF

Severe Weather Statement
National Weather Service Las Vegas NV
155 PM PST Sat Feb 13 2021

NVC003-132215-
/O.CON.KVEF.SV.W.0001.000000T0000Z-210213T2215Z/
Clark NV-
155 PM PST Sat Feb 13 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 PM PST
FOR CENTRAL CLARK COUNTY...

At 153 PM PST, a severe thunderstorm was located over Las Vegas, 
moving southeast at 60 mph. Widespread wind gusts of 50 to 70 mph 
have been recorded across the metro area! 

HAZARD...70 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings.

Locations impacted include...
Las Vegas, Henderson, North Las Vegas, Lone Mountain, Anthem,
Summerlin, The Strip, Nellis AFB, Downtown Las Vegas, East Las Vegas,
Sam Boyd Stadium, The Motor Speedway, Las Vegas Bay, Aliante, Lake
Las Vegas, Spring Valley, Centennial Hills, Green Valley, Enterprise
and Paradise.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3625 11543 3641 11525 3624 11479 3603 11487
      3593 11505 3606 11534
TIME...MOT...LOC 2153Z 309DEG 51KT 3603 11486 

HAIL...<.75IN
WIND...70MPH
 
$$

Outler
681 
WWUS55 KVEF 132209
SVSVEF

Severe Weather Statement
National Weather Service Las Vegas NV
209 PM PST Sat Feb 13 2021

NVC003-132218-
/O.EXP.KVEF.SV.W.0001.000000T0000Z-210213T2215Z/
Clark NV-
209 PM PST Sat Feb 13 2021

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL CLARK COUNTY WILL
EXPIRE AT 215 PM PST...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.  However, strong 
winds continue across much of the Las Vegas Valley and will continue 
through much of the evening. A wind advisory is in effect through 
Sunday morning. 

LAT...LON 3625 11543 3641 11525 3624 11479 3603 11487
      3593 11505 3606 11534
TIME...MOT...LOC 2208Z 309DEG 51KT 3591 11468 

$$

Outler

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 13, 12:05 PM PSTLake Wind AdvisoryVEF30 hr
Feb 13, 1:51 PM PSTSevere Thunderstorm WarningVEFClark54 min

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.