Alert archive / Nevada / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 98, NWS Las Vegas, NV

July 10, 2011Clark County, Nevada; Mohave County, Arizona

NWS Las Vegas, NV issued this severe thunderstorm warning at Jul 10, 2011, 1:02 PM PDT for Clark County, Nevada; Mohave County, Arizona. 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: Jul 10, 2011, 1:02 PM PDT (20:02 UTC)
Expired: Jul 10, 2011, 1:45 PM PDT
In force: 43 min
Issued by: NWS Las Vegas, NV
Area: Storm-based polygon

Counties Mohave County, AZ, Clark County, NV

The radar

The Las Vegas radar (KESX), 78 km from the middle of the area, began a volume at 20:01 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, 8.0 hours before the alert went out and 133 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3297 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 11 m²/s²
0-3 km storm-relative helicity: 34 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.

106 
WUUS55 KVEF 102002
SVRVEF
AZC015-NVC003-102045-
/O.NEW.KVEF.SV.W.0098.110710T2002Z-110710T2045Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
102 PM MST SUN JUL 10 2011

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL MOHAVE COUNTY IN NORTHWEST ARIZONA...
  EXTREME EAST CENTRAL CLARK COUNTY IN SOUTHERN NEVADA...

* UNTIL 145 PM MST/145 PM PDT/.

* AT 100 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 6 MILES SOUTHWEST OF MEADVIEW...
  OR 37 MILES EAST OF BOULDER CITY...AND MOVING NORTHEAST AT 10 MPH.

* LOCATIONS IMPACTED INCLUDE...MEADVIEW AND SOUTH COVE.

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 TWITTER #NWSVEGAS.

&&

LAT...LON 3620 11408 3602 11387 3577 11427 3597 11432
TIME...MOT...LOC 2002Z 227DEG 7KT 3596 11417

$$

STACHELSKI

2 follow-up statements

590 
WWUS55 KVEF 102022
SVSVEF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
122 PM MST SUN JUL 10 2011

AZC015-NVC003-102045-
/O.CON.KVEF.SV.W.0098.000000T0000Z-110710T2045Z/
MOHAVE AZ-CLARK NV-
122 PM MST SUN JUL 10 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 145 PM
MST/145 PM PDT/ FOR EXTREME EAST CENTRAL CLARK AND CENTRAL MOHAVE
COUNTIES...

AT 116 PM MST...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 6 MILES WEST OF MEADVIEW...
OR 37 MILES EAST OF BOULDER CITY...MOVING NORTHEAST AT 15 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SOUTH
COVE

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 TWITTER #NWSVEGAS.

&&

LAT...LON 3587 11412 3596 11431 3600 11429 3618 11410
      3612 11399 3608 11394
TIME...MOT...LOC 2022Z 210DEG 12KT 3599 11416

$$

PIERCE

571 
WWUS55 KVEF 102044
SVSVEF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
144 PM MST SUN JUL 10 2011

AZC015-NVC003-102051-
/O.EXP.KVEF.SV.W.0098.000000T0000Z-110710T2045Z/
MOHAVE AZ-CLARK NV-
144 PM MST SUN JUL 10 2011

...THE SEVERE THUNDERSTORM WARNING FOR EXTREME EAST CENTRAL CLARK AND
CENTRAL MOHAVE COUNTIES WILL EXPIRE AT 145 PM MST/145 PM PDT/...

THUNDERSTORMS NEAR MEADVIEW AND SOUTH COVE IN THE EASTERN PORTION OF 
THE LAKE MEAD NATIONAL RECREATION AREA HAVE WEAKENED. THE STORMS NO 
LONGER POISE THE THREAT OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 
MPH. 

LAT...LON 3587 11412 3596 11431 3600 11429 3618 11410
      3612 11399 3608 11394
TIME...MOT...LOC 2041Z 210DEG 12KT 3604 11412

$$

PIERCE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 9, 5:41 PM PDT	Severe Thunderstorm Warning	VEF	Clark	49 min
Jul 9, 5:45 PM PDT	Areal Flood Advisory	VEF	Clark	59 min
Jul 10, 12:23 PM PDT	Severe Thunderstorm Warning	VEF	Clark	52 min
Jul 10, 1:18 PM PDT	Areal Flood Advisory	VEF	Clark	3 hr
Jul 10, 1:26 PM PDT	Areal Flood Advisory	VEF	Clark	3 hr
Jul 10, 1:27 PM PDT	Severe Thunderstorm Warning	VEF	Clark	48 min
Jul 10, 1:57 PM PDT	Severe Thunderstorm Warning	VEF	Clark	34 min
Jul 10, 2:43 PM PDT	Severe Thunderstorm Warning	VEF	Clark	47 min
Jul 10, 3:09 PM PDT	Severe Thunderstorm Warning	VEF	Clark	20 min
Jul 10, 3:46 PM PDT	Severe Thunderstorm Warning	VEF	Clark, Lincoln	44 min
Jul 9, 5:30 PM PDT	Severe Thunderstorm Warning	VEF	Mohave	25 min
Jul 9, 6:23 PM PDT	Flash Flood Warning	VEF	Mohave	2 hr
Jul 9, 7:34 PM PDT	Areal Flood Advisory	VEF	Mohave	86 min
Jul 10, 1:07 PM PDT	Severe Thunderstorm Warning	VEF	Mohave	40 min
Jul 10, 2:55 PM PDT	Severe Thunderstorm Warning	VEF	Mohave	50 min

Nearby

Severe Thunderstorm Warnings in Nevada, 2011 Severe Thunderstorm Warnings in Arizona, 2011 Every severe thunderstorm warning in 2011

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.