Alert archive / Nevada / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 89, NWS Las Vegas, NV

September 22, 2016Mohave County, Arizona; Clark County, Lincoln County, Nevada

NWS Las Vegas, NV issued this severe thunderstorm warning at Sep 22, 2016, 2:45 PM MST for Mohave County, Arizona; Clark County, Lincoln County, Nevada. It was in force for 45 min. 1 report 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
Sep 22, 2016, 2:45 PM MST (21:45 UTC)
Expired
Sep 22, 2016, 3:30 PM MST
In force
45 min
Issued by
NWS Las Vegas, NV
Area
Storm-based polygon

Counties Mohave County, AZ, Clark County, NV, Lincoln County, NV

The radar

The Las Vegas radar (KESX), 121 km from the middle of the area, began a volume at 21:44 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
Sep 22, 2:50 PM MSTHAIL 0.881 Ene Echo Bay, NVNICKEL SIZED HAIL REPORTED BY LAKE MEAD NPS VIA SOCIAL MEDIA. TIME ESTIMATED FROM RADAR.

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, 9.8 hours before the alert went out and 129 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 2016-09-22Temperature 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 2016-09-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 13 square meters per square second.1939587897Sfc1 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
2131 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
13 m²/s²
0-3 km storm-relative helicity
5 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

508 
WUUS55 KVEF 222145
SVRVEF
AZC015-NVC003-017-222230-
/O.NEW.KVEF.SV.W.0089.160922T2145Z-160922T2230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
245 PM PDT THU SEP 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...
  SOUTHEASTERN LINCOLN COUNTY IN SOUTH CENTRAL NEVADA...

* UNTIL 330 PM PDT/330 PM MST/

* AT 243 PM PDT/243 PM MST/...DOPPLER RADAR INDICATED A LINE OF
  SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL AND
  DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED
  ALONG A LINE EXTENDING FROM 7 MILES SOUTH OF BUNKERVILLE TO 6
  MILES SOUTHWEST OF ECHO BAY CAMPGROUND...AND MOVING NORTHEAST AT
  30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MESQUITE...BEAVER DAM...LITTLEFIELD...VIRGIN RIVER GORGE...
  MOAPA VALLEY...TEMPLE BAR CAMPGROUND...OVERTON BEACH...
  VIRGIN RIVER CAMPGROUND...ECHO BAY...BUNKERVILLE...
  ECHO BAY CAMPGROUND...VALLEY OF FIRE AND TEMPLE BAR.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 15 IN ARIZONA BETWEEN MILE MARKERS 0 AND 29.
 INTERSTATE 15 IN NEVADA BETWEEN MILE MARKERS 106 AND 120.

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 3601 11428 3611 11461 3701 11426 3702 11405
      3700 11405 3700 11336
TIME...MOT...LOC 2143Z 288DEG 50KT 3668 11407 3622 11447 

$$

JH
1 follow-up statement
849 
WWUS55 KVEF 222209
SVSVEF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
309 PM PDT THU SEP 22 2016

AZC015-NVC003-017-222230-
/O.CON.KVEF.SV.W.0089.000000T0000Z-160922T2230Z/
MOHAVE AZ-CLARK NV-LINCOLN NV-
309 PM PDT THU SEP 22 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM
PDT/330 PM MST/ FOR NORTHWESTERN MOHAVE...NORTHEASTERN CLARK AND
SOUTHEASTERN LINCOLN COUNTIES...

AT 307 PM PDT/307 PM MST/...DOPPLER RADAR INDICATED SEVERE
THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING
WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR MESQUITE TO 7 MILES NORTHWEST OF TEMPLE BAR
CAMPGROUND...MOVING NORTHEAST AT 25 MPH.

LOCATIONS IMPACTED INCLUDE...
MESQUITE...BEAVER DAM...LITTLEFIELD...VIRGIN RIVER GORGE...
MOAPA VALLEY...TEMPLE BAR CAMPGROUND...OVERTON BEACH...
VIRGIN RIVER CAMPGROUND...ECHO BAY...BUNKERVILLE...
ECHO BAY CAMPGROUND...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.

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 3601 11428 3611 11461 3701 11426 3702 11405
      3700 11405 3700 11336
TIME...MOT...LOC 2207Z 288DEG 41KT 3673 11402 3609 11443 

$$

JH

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 22, 5:21 AM MSTAreal Flood AdvisoryVEFMohave3 hr
Sep 22, 6:28 AM MSTFlash Flood WarningVEFMohave3 hr
Sep 22, 3:25 PM MSTSevere Thunderstorm WarningVEFMohave65 min
Sep 22, 4:45 PM MSTSevere Thunderstorm WarningVEFMohave45 min

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