Alert archive / Nevada / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 73, NWS Las Vegas, NV

August 22, 2016Clark County, Nevada; Mohave County, Arizona

NWS Las Vegas, NV issued this severe thunderstorm warning at Aug 22, 2016, 8:54 PM PDT for Clark County, Nevada; Mohave County, Arizona. It was in force for 51 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 22, 2016, 8:54 PM PDT (03:54 UTC)
Expired
Aug 22, 2016, 9:45 PM PDT
In force
51 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), 54 km from the middle of the area, began a volume at 03:54 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 00:00Z, 3.9 hours before the alert went out and 79 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 00:00Z on 2016-08-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 472 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 00:00Z on 2016-08-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 17 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
472 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
3384 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
17 m²/s²
0-3 km storm-relative helicity
99 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

382 
WUUS55 KVEF 230354
SVRVEF
AZC015-NVC003-230445-
/O.NEW.KVEF.SV.W.0073.160823T0354Z-160823T0445Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
854 PM PDT MON AUG 22 2016

THE NATIONAL WEATHER SERVICE IN LAS VEGAS  HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN MOHAVE COUNTY IN NORTHWESTERN ARIZONA...
  NORTHEASTERN CLARK COUNTY IN SOUTHERN NEVADA...

* UNTIL 945 PM PDT/945 PM MST/

* AT 852 PM PDT/852 PM MST/...DOPPLER RADAR INDICATED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60
  MPH. THIS STORM WAS LOCATED NEAR CALLVILLE BAY CAMPGROUND...OR 12
  MILES EAST OF LAS VEGAS BAY...AND MOVING EAST AT 25 MPH. THIS
  REPLACES THE PREVIOUS SEVERE THUNDERSTORM WARNING IN EFFECT FOR
  THE AREA.

* LOCATIONS IMPACTED INCLUDE...
  HENDERSON...BOULDER CITY...LAS VEGAS BAY...LAKE LAS VEGAS...
  CALLVILLE BAY...TEMPLE BAR CAMPGROUND...VALLEY OF FIRE...
  ECHO BAY...BOULDER BEACH...LAS VEGAS BAY CAMPGROUND...
  BOULDER BEACH CAMPGROUND...CALLVILLE BAY CAMPGROUND...
  OVERTON BEACH...HOOVER DAM...ECHO BAY CAMPGROUND AND TEMPLE BAR.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM WILL PRODUCE HIGH WINDS WHICH CAN BRING DOWN TREES AND
POWER LINES AND CAUSE BLOWING DUST. ALSO...LIGHTNING CAN KILL! TAKE
COVER IN A STURDY BUILDING AND STAY AWAY FROM WINDOWS UNTIL THE STORM
PASSES. REPORT SEVERE WEATHER TO THE LAS VEGAS NATIONAL WEATHER
SERVICE VIA FACEBOOK OR TWITTER.

STRONG WIND GUSTS AND HIGH WAVES CAN BE EXPECTED! IF ON OR NEAR LAKE
MEAD...HEAD TO SAFE HARBOR IMMEDIATELY OR STAY CLOSE TO SHORE UNTIL
THE STORM PASSES.
&&

LAT...LON 3612 11502 3647 11479 3647 11413 3585 11436
      3595 11485
TIME...MOT...LOC 0352Z 292DEG 20KT 3614 11463 

$$

CMS
2 follow-up statements
073 
WWUS55 KVEF 230418
SVSVEF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
918 PM PDT MON AUG 22 2016

AZC015-NVC003-230445-
/O.CON.KVEF.SV.W.0073.000000T0000Z-160823T0445Z/
MOHAVE AZ-CLARK NV-
918 PM PDT MON AUG 22 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM
PDT/945 PM MST/ FOR NORTHWESTERN MOHAVE AND NORTHEASTERN CLARK
COUNTIES...

AT 917 PM PDT/917 PM MST/...DOPPLER RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH.
THIS STORM WAS LOCATED 8 MILES NORTHWEST OF TEMPLE BAR CAMPGROUND...OR
21 MILES EAST OF BOULDER CITY...MOVING EAST AT 25 MPH.

LOCATIONS IMPACTED INCLUDE...
BOULDER CITY...LAS VEGAS BAY...CALLVILLE BAY...
TEMPLE BAR CAMPGROUND...ECHO BAY...BOULDER BEACH...
BOULDER BEACH CAMPGROUND...CALLVILLE BAY CAMPGROUND...
OVERTON BEACH...ECHO BAY CAMPGROUND...HOOVER DAM...
VALLEY OF FIRE AND TEMPLE BAR.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM WILL PRODUCE HIGH WINDS WHICH CAN BRING DOWN TREES AND
POWER LINES AND CAUSE BLOWING DUST. ALSO...LIGHTNING CAN KILL! TAKE
COVER IN A STURDY BUILDING AND STAY AWAY FROM WINDOWS UNTIL THE STORM
PASSES. REPORT SEVERE WEATHER TO THE LAS VEGAS NATIONAL WEATHER
SERVICE VIA FACEBOOK OR TWITTER.

IF ON OR NEAR LAKE MEAD...BOATERS CAN EXPECT GUSTY WINDS... HIGH
WAVES...DANGEROUS LIGHTNING AND HEAVY RAIN. SEEK SAFE HARBOR
IMMEDIATELY UNTIL THESE STORMS PASS.

&&

LAT...LON 3611 11489 3647 11446 3647 11413 3585 11436
      3595 11485
TIME...MOT...LOC 0417Z 292DEG 20KT 3609 11447 

$$

CMS
872 
WWUS55 KVEF 230446
SVSVEF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
946 PM PDT MON AUG 22 2016

AZC015-NVC003-230454-
/O.EXP.KVEF.SV.W.0073.000000T0000Z-160823T0445Z/
MOHAVE AZ-CLARK NV-
946 PM PDT MON AUG 22 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN MOHAVE AND
NORTHEASTERN CLARK COUNTIES WILL EXPIRE AT 945 PM PDT/945 PM MST/...
        
THIS WARNING HAS BEEN REPLACED WITH A NEW SEVERE THUNDERSTORM
WARNING UNTIL 1015 PM PDT /1015 PM MST/.

LAT...LON 3611 11489 3647 11446 3647 11413 3585 11436
      3595 11485
TIME...MOT...LOC 0438Z 292DEG 20KT 3609 11447 

$$

CMS

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 22, 6:03 PM PDTAreal Flood AdvisoryVEFLincoln3 hr
Aug 22, 6:20 PM PDTFlash Flood WarningVEFClark3 hr
Aug 22, 6:45 PM PDTFlash Flood WarningVEFLincoln3 hr
Aug 22, 6:57 PM PDTFlash Flood WarningVEFClark4 hr
Aug 22, 7:09 PM PDTSevere Thunderstorm WarningVEFClark36 min
Aug 22, 7:20 PM PDTFlash Flood WarningVEFClark3 hr
Aug 22, 7:37 PM PDTSevere Thunderstorm WarningVEFClark19 min
Aug 22, 7:45 PM PDTSevere Thunderstorm WarningVEFClark45 min
Aug 22, 8:19 PM PDTSevere Thunderstorm WarningVEFClark41 min
Aug 22, 8:22 PM PDTFlash Flood WarningVEFClark, Lincoln3 hr
Aug 22, 8:31 PM PDTFlash Flood WarningVEFClark3 hr
Aug 22, 9:42 PM PDTSevere Thunderstorm WarningVEFClark33 min
Aug 22, 10:13 PM PDTAreal Flood AdvisoryVEFClark3 hr
Aug 22, 11:16 PM PDTAreal Flood AdvisoryVEFClark119 min
Aug 23, 2:24 AM PDTAreal Flood WarningVEFClark24 hr
Aug 23, 3:07 PM PDTSevere Thunderstorm WarningVEFLincoln38 min
Aug 23, 4:40 PM PDTSevere Thunderstorm WarningVEFLincoln35 min
Aug 23, 4:56 PM PDTSevere Thunderstorm WarningVEFLincoln34 min
Aug 22, 5:03 PM PDTFlash Flood WarningVEFMohave6 hr
Aug 22, 8:46 PM PDTFlash Flood WarningVEFMohave3 hr
Aug 22, 9:58 PM PDTFlash Flood WarningVEFMohave3 hr
Aug 22, 10:58 PM PDTAreal Flood AdvisoryVEFMohave3 hr
Aug 22, 11:00 PM PDTAreal Flood WarningVEFMohave24 hr

Nearby

Severe Thunderstorm Warnings in Nevada, 2016Severe Thunderstorm Warnings in Arizona, 2016Every severe thunderstorm warning in 2016

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.