Alert archive / Nevada / High Wind Warnings in 2015

High Wind Warning 4, NWS Las Vegas, NV

July 1, 2015Clark County, Nevada

NWS Las Vegas, NV issued this high wind warning at Jul 1, 2015, 2:27 AM PDT for Clark County, Nevada. It was in force for 93 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jul 1, 2015, 2:27 AM PDT (09:27 UTC)
Expired: Jul 1, 2015, 4:00 AM PDT
In force: 93 min
Issued by: NWS Las Vegas, NV

County Clark County, NV

The radar

The Las Vegas radar (KESX), 58 km from the middle of the area, began a volume at 09:28 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

Time	Report	Where	Remark
Jul 1, 3:08 AM PDT	NON-TSTM WND GST 59	2 N Sloan, NV	MESONET STATION SLOAN 2 NNE /D4394/
Jul 1, 3:50 AM PDT	NON-TSTM WND DMG	3 Ne Sloan, NV	TREE BLOWN DOWN AT ST. ROSE PKWY AND LAS VEGAS BLVD.

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 00:00Z, 9.5 hours before the alert went out and 50 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: 803 J/kg
Mixed-layer CIN: -30 J/kg
Mixed-layer LCL: 3872 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: -5 m²/s²
0-3 km storm-relative helicity: 27 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

756 
WWUS75 KVEF 010927
NPWVEF

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
227 AM PDT WED JUL 1 2015

...STRONG WINDS ASSOCIATED WITH AN OUTFLOW BOUNDARY WILL
AFFECT EASTERN CLARK COUNTY THROUGH 4 AM PDT...

AZZ036-NVZ020>022-011100-
/O.NEW.KVEF.HW.W.0004.150701T0927Z-150701T1100Z/
LAKE MEAD NATIONAL RECREATION AREA-LAS VEGAS VALLEY-
SOUTHERN CLARK COUNTY-
INCLUDING THE CITIES OF...BULLHEAD CITY...MOHAVE VALLEY...
LAS VEGAS...NORTH LAS VEGAS...HENDERSON...BOULDER CITY...
HOOVER DAM...LAUGHLIN...PRIMM...SEARCHLIGHT...CAL-NEV-ARI
227 AM PDT WED JUL 1 2015

...HIGH WIND WARNING IN EFFECT UNTIL 4 AM PDT /4 AM MST/ EARLY
THIS MORNING...

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A HIGH WIND
WARNING FOR LAS VEGAS AND THE LAKE MEAD NATIONAL RECREATION AREA
...WHICH IS IN EFFECT UNTIL 4 AM PDT /4 AM MST/ EARLY THIS MORNING.

* WINDS: SOUTH TO SOUTHEAST 25 TO 35 MPH WITH GUSTS UP TO 65 MPH

* TIMING: THROUGH 4 AM THIS MORNING.

* LOCATIONS: LAS VEGAS...BOULDER CITY AND THE LAKE MEAD NATIONAL
  RECREATION AREA.

* IMPACTS: GUSTY WINDS CREATING AREAS OF BLOWING DUST. STRONG CROSS
  WINDS. DANGEROUS BOATING CONDITIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. TAKE ACTION TO SECURE TRASH CANS...LAWN FURNITURE...
AND OTHER LOOSE OR LIGHTWEIGHT OUTDOOR OBJECTS.

&&

$$

1 follow-up statement

169 
WWUS75 KVEF 011057
NPWVEF

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
357 AM PDT WED JUL 1 2015

AZZ036-NVZ020>022-011200-
/O.EXP.KVEF.HW.W.0004.000000T0000Z-150701T1100Z/
LAKE MEAD NATIONAL RECREATION AREA-LAS VEGAS VALLEY-
SOUTHERN CLARK COUNTY-
INCLUDING THE CITIES OF...BULLHEAD CITY...MOHAVE VALLEY...
LAS VEGAS...NORTH LAS VEGAS...HENDERSON...BOULDER CITY...
HOOVER DAM...LAUGHLIN...PRIMM...SEARCHLIGHT...CAL-NEV-ARI
357 AM PDT WED JUL 1 2015

...HIGH WIND WARNING WILL EXPIRE AT 4 AM EARLY THIS MORNING...

THE HIGH WIND WARNING WILL EXPIRE AT 4 AM EARLY THIS MORNING FOR THE
LAS VEGAS VALLEY AND LAKE MEAD NATIONAL RECREATION AREA. THUNDERSTORM
OUTFLOW WINDS THAT PUSHED INTO THE LAS VEGAS VALLEY AND THE BOULDER
BASIN OF LAKE MEAD EARLY THIS MORNING HAVE DECREASED WITH GUSTS
GENERALLY BETWEEN 30 AND 40 MPH. THESE GUSTS WILL GRADUALLY DIMINISH
TO LESS THAN 25 MPH TOWARD SUNRISE.




$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 1, 3:59 PM PDT	Severe Thunderstorm Warning	VEF	Nye	31 min
Jul 1, 4:25 PM PDT	Severe Thunderstorm Warning	VEF	Lincoln	35 min
Jul 1, 4:56 PM PDT	Areal Flood Advisory	VEF	Lincoln	3 hr
Jul 1, 4:59 PM PDT	Severe Thunderstorm Warning	VEF	Lincoln	31 min
Jun 30, 11:56 PM PDT	Areal Flood Advisory	VEF	Mohave	109 min
Jul 1, 12:01 AM PDT	Severe Thunderstorm Warning	VEF	Mohave	59 min

Nearby

High Wind Warnings in Nevada, 2015 High Wind Warnings in Arizona, 2015 Every high wind warning in 2015

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.