Alert archive / Nevada / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 21, NWS Las Vegas, NV

August 18, 2010Clark County, Lincoln County, Nevada

NWS Las Vegas, NV issued this severe thunderstorm warning at Aug 18, 2010, 5:23 PM PDT for Clark County, Lincoln County, Nevada. It was in force for 37 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 18, 2010, 5:23 PM PDT (00:23 UTC)
Expired
Aug 18, 2010, 6:00 PM PDT
In force
37 min
Issued by
NWS Las Vegas, NV
Area
Storm-based polygon

Counties Clark County, NV, Lincoln County, NV

The radar

The Las Vegas radar (KESX), 138 km from the middle of the area, began a volume at 00:26 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

Flgstf/Belemont, AZ (KFGZ), launched 00:00Z, 0.4 hours before the alert went out and 336 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 00:00Z on 2010-08-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 222 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 2010-08-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 17 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
222 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
1517 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
17 m²/s²
0-3 km storm-relative helicity
26 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.

425 
WUUS55 KVEF 190023
SVRVEF
NVC003-017-190100-
/O.NEW.KVEF.SV.W.0021.100819T0023Z-100819T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
523 PM PDT WED AUG 18 2010

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTH CENTRAL LINCOLN COUNTY IN SOUTH CENTRAL NEVADA...
  NORTH CENTRAL CLARK COUNTY IN SOUTHERN NEVADA...

* UNTIL 600 PM PDT.

* AT 517 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THIS STORM WAS LOCATED OVER EXTREME NORTH CENTRAL CLARK
  COUNTY...OR 23 MILES NORTHWEST OF MOAPA...AND MOVING NORTHEAST AT
  15 MPH.

* THE SEVERE THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF THE 
  INDICATED COUNTIES. HIGHWAY 93 BETWEEN MILE MARKER 83 IN CLARK     
  COUNTY AND MILE MARKER 5 IN LINCOLN COUNTY. THIS IS ALSO VERY NEAR 
  COYOTE SPRINGS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

&&

LAT...LON 3709 11487 3692 11466 3674 11492 3686 11507
TIME...MOT...LOC 0022Z 220DEG 11KT 3686 11495

$$

STACHELSKI
2 follow-up statements
377 
WWUS55 KVEF 190044
SVSVEF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
544 PM PDT WED AUG 18 2010

NVC003-017-190100-
/O.CON.KVEF.SV.W.0021.000000T0000Z-100819T0100Z/
CLARK NV-LINCOLN NV-
544 PM PDT WED AUG 18 2010

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM PDT
FOR SOUTH CENTRAL LINCOLN AND EXTREME NORTH CENTRAL CLARK COUNTIES...

AT 539 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH.  THIS STORM WAS LOCATED OVER EXTREME SOUTH CENTRAL
LINCOLN COUNTY...OR 23 MILES NORTHWEST OF MOAPA...MOVING NORTHEAST AT
15 MPH. TRAVELERS ALONG HIGHWAY 93 BETWEEN THE CLARK-LINCOLN COUNTY 
LINE AND MILE MARKER 5 IN LINCOLN COUNTY SHOULD BE ALERT FOR THIS 
STORM. THIS SEVERE THUNDERSTORM IS JUST NORTH OF COYOTE SPRINGS.

LAT...LON 3680 11489 3687 11503 3709 11487 3692 11466
TIME...MOT...LOC 0042Z 220DEG 11KT 3691 11490

$$

STACHELSKI
096 
WWUS55 KVEF 190059
SVSVEF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
559 PM PDT WED AUG 18 2010

NVC003-017-190108-
/O.EXP.KVEF.SV.W.0021.000000T0000Z-100819T0100Z/
CLARK NV-LINCOLN NV-
559 PM PDT WED AUG 18 2010

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL LINCOLN AND 
EXTREME NORTH CENTRAL CLARK COUNTIES HAS BEEN REPLACED BY A NEW 
SEVERE THUNDERSTORM WARNING... 

THIS NEW WARNING IS IN EFFECT UNTIL 645 PM PDT. THIS THUNDERSTORM 
HAS SLOWED DOWN AND NOT WEAKENED AT ALL. THUS THE THREAT OF SEVERE 
WEATHER CONTINUES IN THE COYOTE SPRINGS AREA.

LAT...LON 3680 11489 3687 11503 3709 11487 3692 11466 
TIME...MOT...LOC 0058Z 220DEG 11KT 3695 11486

$$

STACHELSKI

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 18, 5:02 PM PDTSevere Thunderstorm WarningVEFLincoln43 min
Aug 18, 5:22 PM PDTAreal Flood AdvisoryVEFClark, Lincoln3 hr
Aug 18, 5:31 PM PDTSevere Thunderstorm WarningVEFLincoln27 min
Aug 18, 5:57 PM PDTSevere Thunderstorm WarningVEFClark, Lincoln48 min
Aug 18, 8:14 PM PDTAreal Flood AdvisoryVEFClark, Lincoln3 hr

Nearby

Severe Thunderstorm Warnings in Nevada, 2010Every severe thunderstorm warning in 2010

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.