Alert archive / Arizona / Wind Advisories in 2014

Wind Advisory 9, NWS Las Vegas, NV

February 28, 2014Mohave County, Arizona; Clark County, Nevada; San Bernardino County, California

NWS Las Vegas, NV issued this wind advisory at Feb 28, 2014, 12:35 PM MST for Mohave County, Arizona; Clark County, Nevada; San Bernardino County, California. It took effect at Feb 28, 2014, 1:00 PM MST. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued
Feb 28, 2014, 12:35 PM MST (19:35 UTC)
In effect from
Feb 28, 2014, 1:00 PM MST
Expired
Feb 28, 2014, 11:00 PM MST
In force
10 hr
Issued by
NWS Las Vegas, NV

Counties Mohave County, AZ, San Bernardino County, CA, Clark County, NV

The radar

The Las Vegas radar (KESX), 15 km from the middle of the area, began a volume at 19:34 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, 7.6 hours before the alert went out and 101 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 2014-02-28Temperature 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 2014-02-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 67 square meters per square second.1939587897117136Sfc1 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
3198 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
67 m²/s²
0-3 km storm-relative helicity
113 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.

308 
WWUS75 KVEF 281935
NPWVEF

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
1135 AM PST FRI FEB 28 2014

.A POTENT PACIFIC STORM APPROACHING WILL COMBINE WITH SHOWERS AND
THUNDERSTORMS TO PRODUCE STRONG WINDS ACROSS THE MOJAVE DESERT THIS
AFTERNOON INTO THIS EVENING.

AZZ002-003-036-CAZ523>527-NVZ021-022-010400-
/O.NEW.KVEF.WI.Y.0009.140228T2000Z-140301T0400Z/
LAKE HAVASU AND FORT MOHAVE-NORTHWEST DESERTS-
LAKE MEAD NATIONAL RECREATION AREA-WESTERN MOJAVE DESERT-
EASTERN MOJAVE DESERT-MORONGO BASIN-CADIZ BASIN-
SAN BERNARDINO COUNTY-UPPER COLORADO RIVER VALLEY-
SOUTHERN CLARK COUNTY-
INCLUDING...LAKE HAVASU...DESERT HILLS...TOPOCK...
KINGMAN...GOLDEN VALLEY...DOLAN SPRINGS...VALENTINE...WIKIEUP...
YUCCA...BULLHEAD CITY...MOHAVE VALLEY...BARSTOW...DAGGETT...
FORT IRWIN...BAKER...MOUNTAIN PASS...MITCHELL CAVERNS...
MORONGO VALLEY...YUCCA VALLEY...TWENTYNINE PALMS...VIDAL JUNCTION...
NEEDLES...HOOVER DAM...LAUGHLIN...PRIMM...SEARCHLIGHT...CAL-NEV-ARI
1135 AM PST FRI FEB 28 2014 /1235 PM MST FRI FEB 28 2014/

...WIND ADVISORY IN EFFECT UNTIL 8 PM PST /9 PM MST/ THIS EVENING...

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A WIND
ADVISORY FOR MUCH OF SAN BERNARDINO COUNTY AND SOUTHERN PORTIONS OF
CLARK AND MOHAVE COUNTIES...WHICH IS IN EFFECT UNTIL 8 PM PST /9 PM
MST/ THIS EVENING.

* WINDS: MAINLY SOUTH 20 TO 35 MPH WITH GUSTS TO 50 MPH.

* TIMING: THIS AFTERNOON AND EVENING. 

* LOCATIONS: INCLUDING BUT NOT LIMITED TO YUCCA VALLEY... BARSTOW...
  FORT IRWIN...TWENTY NINE PALMS...BAKER...NEEDLES...LAKE HAVASU
  CITY...SEARCHLIGHT...KINGMAN...MOHAVE VALLEY...DOLAN SPRINGS.

* IMPACTS: POSSIBLE BLOWING DEBRIS...SAND AND DUST. DIFFICULT
  DRIVING CONDITIONS DUE TO POSSIBLE REDUCED VISIBILITY AND
  CROSSWINDS. 


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT CROSSWINDS ARE EXPECTED TO BE STRONG
ENOUGH TO MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE
VEHICLES. IN ADDITION...STRONG WINDS OVER DESERT AREAS COULD RESULT
IN BRIEFLY LOWERED VISIBILITIES TO WELL UNDER A MILE AT TIMES IN
BLOWING DUST OR BLOWING SAND. USE EXTRA CAUTION.

&&

$$
2 follow-up statements
889 
WWUS75 KVEF 010339
NPWVEF

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
739 PM PST FRI FEB 28 2014

AZZ002-003-036-CAZ523>527-NVZ021-022-010600-
/O.EXT.KVEF.WI.Y.0009.000000T0000Z-140301T0600Z/
LAKE HAVASU AND FORT MOHAVE-NORTHWEST DESERTS-
LAKE MEAD NATIONAL RECREATION AREA-WESTERN MOJAVE DESERT-
EASTERN MOJAVE DESERT-MORONGO BASIN-CADIZ BASIN-
SAN BERNARDINO COUNTY-UPPER COLORADO RIVER VALLEY-
SOUTHERN CLARK COUNTY-
INCLUDING...LAKE HAVASU...DESERT HILLS...TOPOCK...
KINGMAN...GOLDEN VALLEY...DOLAN SPRINGS...VALENTINE...WIKIEUP...
YUCCA...BULLHEAD CITY...MOHAVE VALLEY...BARSTOW...DAGGETT...
FORT IRWIN...BAKER...MOUNTAIN PASS...MITCHELL CAVERNS...
MORONGO VALLEY...YUCCA VALLEY...TWENTYNINE PALMS...VIDAL JUNCTION...
NEEDLES...HOOVER DAM...LAUGHLIN...PRIMM...SEARCHLIGHT...CAL-NEV-ARI
739 PM PST FRI FEB 28 2014 /839 PM MST FRI FEB 28 2014/

...WIND ADVISORY NOW IN EFFECT UNTIL 10 PM PST /11 PM MST/ THIS
EVENING...

THE WIND ADVISORY IS NOW IN EFFECT UNTIL 10 PM PST /11 PM MST/ THIS
EVENING. 

* WINDS: MAINLY SOUTH 20 TO 35 MPH WITH GUSTS TO 50 MPH.

* TIMING: THROUGH THIS EVENING...ESPECIALLY IN AND NEAR SHOWERS.

* LOCATIONS: PRIMM...SEARCHLIGHT...CAL-NEV-ARI...HOOVER DAM...
  LAUGHLIN...NEEDLES...VIDAL JUNCTION...MORONGO VALLEY... 
  YUCCA VALLEY...TWENTYNINE PALMS...BAKER...MOUNTAIN PASS... 
  MITCHELL CAVERNS...BARSTOW...DAGGETT...FORT IRWIN... 
  BULLHEAD CITY...MOHAVE VALLEY...KINGMAN...GOLDEN VALLEY... 
  DOLAN SPRINGS...VALENTINE...WIKIEUP...YUCCA...LAKE HAVASU... 
  DESERT HILLS...TOPOCK 

* IMPACTS: POSSIBLE BLOWING DEBRIS...SAND AND DUST. DIFFICULT
  DRIVING CONDITIONS DUE TO REDUCED VISIBILITY AND CROSSWINDS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT CROSSWINDS ARE EXPECTED TO BE STRONG
ENOUGH TO MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE
VEHICLES. IN ADDITION...STRONG WINDS OVER DESERT AREAS COULD RESULT
IN BRIEFLY LOWERED VISIBILITIES TO WELL UNDER A MILE AT TIMES IN
BLOWING DUST OR BLOWING SAND. USE EXTRA CAUTION.

&&

$$

MORGAN
515 
WWUS75 KVEF 010536
NPWVEF

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
936 PM PST FRI FEB 28 2014

AZZ002-003-036-CAZ523>527-NVZ021-022-010645-
/O.EXP.KVEF.WI.Y.0009.000000T0000Z-140301T0600Z/
LAKE HAVASU AND FORT MOHAVE-NORTHWEST DESERTS-
LAKE MEAD NATIONAL RECREATION AREA-WESTERN MOJAVE DESERT-
EASTERN MOJAVE DESERT-MORONGO BASIN-CADIZ BASIN-
SAN BERNARDINO COUNTY-UPPER COLORADO RIVER VALLEY-
SOUTHERN CLARK COUNTY-
INCLUDING...LAKE HAVASU...DESERT HILLS...TOPOCK...
KINGMAN...GOLDEN VALLEY...DOLAN SPRINGS...VALENTINE...WIKIEUP...
YUCCA...BULLHEAD CITY...MOHAVE VALLEY...BARSTOW...DAGGETT...
FORT IRWIN...BAKER...MOUNTAIN PASS...MITCHELL CAVERNS...
MORONGO VALLEY...YUCCA VALLEY...TWENTYNINE PALMS...VIDAL JUNCTION...
NEEDLES...HOOVER DAM...LAUGHLIN...PRIMM...SEARCHLIGHT...CAL-NEV-ARI
936 PM PST FRI FEB 28 2014 /1036 PM MST FRI FEB 28 2014/

...WIND ADVISORY WILL EXPIRE AT 10 PM PST /11 PM MST/ THIS
EVENING...

THE WIND ADVISORY FOR MUCH OF THE MOJAVE DESERT WILL EXPIRE AT 10 PM
PST /11 PM MST/ THIS EVENING.

WINDS HAD BEGUN TO SUBSIDE OVER MOST OF THE AREA THIS EVENING.
ALTHOUGH A FEW STRONG GUSTS MAY STILL OCCUR...THE THREAT FOR
WIDESPREAD GUSTS OVER 40 MPH HAD ENDED. THEREFORE...THE WIND
ADVISORY WILL BE ALLOWED TO EXPIRE.

$$

MORGAN

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 28, 1:17 PM MSTWinter Storm WarningVEFInyo26 hr

Nearby

Wind Advisories in Arizona, 2014Wind Advisories in Nevada, 2014Wind Advisories in California, 2014Every wind advisory in 2014

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.