Alert archive / California / Dust Storm Warnings in 2012

Dust Storm Warning 1, NWS Las Vegas, NV

January 21, 2012San Bernardino County, California

NWS Las Vegas, NV issued this dust storm warning at Jan 21, 2012, 12:13 PM PST for San Bernardino County, California. It was in force for 4 hr. 11 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
Jan 21, 2012, 12:13 PM PST (20:13 UTC)
Expired
Jan 21, 2012, 4:00 PM PST
In force
4 hr
Issued by
NWS Las Vegas, NV

County San Bernardino County, CA

What was reported inside it

TimeReportWhereRemark
Jan 21, 12:20 PM PSTNON-TSTM WND DMG2 Ne Morongo Valley, CAA SPOTTER IN MORONGO VALLEY REPORTED HIGH WINDS BLEW OVER A 20 FOOT TALL FLAG POLE.
Jan 21, 12:43 PM PSTNON-TSTM WND DMG5 Ssw Barstow, CAA ROAD SIGN WAS BLOWN ONTO INTERSTATE 15 SOUTHBOUND NEAR OUTLET CENTER DRIVE WITH THE POST STILL ATTACHED.
Jan 21, 12:52 PM PSTNON-TSTM WND DMG2 Ne Morongo Valley, CAEXPERIENCING PROLONGED POWER OUTAGES AND 20 FOOT FLAG POLE SNAPPED.
Jan 21, 12:55 PM PSTNON-TSTM WND GST 63Bicycle Lake Airfield, CABICYCLE LAKE ASOS ESTIMATED A 55 KT OR 63 MPH WIND GUST AT AN ELEVATION OF 2349 FEET.
Jan 21, 1:10 PM PSTNON-TSTM WND GST 61Barstow-Daggett Ap, CABARSTOW-DAGGETT AIRPORT MEASURED A 61 MPH WIND GUST AT AN ELEVATION OF 1917 FEET.
Jan 21, 1:26 PM PSTNON-TSTM WND DMG9 Ene Manix (Up240), CAA SIGN WAS BLOWN INTO INTERSTATE 15 BY HIGH WINDS NEAR THE CLYDE KANE REST AREA.
Jan 21, 1:43 PM PSTNON-TSTM WND DMG2 Ne Morongo Valley, CAEXPERIENCING PROLONGED POWER OUTAGES AND 20 FOOT FLAG POLE SNAPPED.
Jan 21, 1:55 PM PSTNON-TSTM WND GST 69Bicycle Lake Airfield, CATHE BICYCLE LAKE AIRFIELD OBSERVER ESTIMATED A WIND GUST OF 60 KTS OR 69 MPH AT AN ELEVATION OF 2349 FEET.
Jan 21, 2:00 PM PSTNON-TSTM WND DMG1 S Primm, CALAW ENFORCEMENT REPORTED HIGH WINDS BLEW OVER A TRUCK NEAR THE CALIFORNIA-NEVADA STATE LINE ON INTERSTATE 15. THE TRUCK BLOCKED TWO LANES OF THE INTERSTATE.
Jan 21, 2:00 PM PSTNON-TSTM WND DMGMorongo Valley, CAHIGH WINDS KNOCKED OUT POWER TO OVER 2300 CUSTOMERS IN THE MORONGO BASIN ACCORDING TO SOUTHERN CALIFORNIA EDISON. MOST OF THE OUTAGES WERE IN MORONGO VALLEY AND TWENTYNINE PALMS.
Jan 21, 2:56 PM PSTNON-TSTM WND DMG3 Wnw Barstow, CACALIFORNIA HIGHWAY PATROL REPORTED A TREE AND POWER POLE DOWN AT THE INTERSECTION OF WALNUT STREET AT JADE ROAD.

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, 8.2 hours before the alert went out and 180 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 2012-01-21Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Las Vegas, NV at 12:00Z on 2012-01-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 355 square meters per square second.19395878Sfc1 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
1856 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
355 m²/s²
0-3 km storm-relative helicity
408 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.

393 
WWUS75 KVEF 212013
NPWVEF

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
1213 PM PST SAT JAN 21 2012

.VERY STRONG SOUTHWEST TO WEST WINDS WILL OCCUR TODAY ACROSS THE
SOUTHERN GREAT BASIN AND MOJAVE DESERT AS A STRONG PACIFIC STORM
MOVES ACROSS CENTRAL CALIFORNIA AND INTO NEVADA. WINDS WILL
DIMINISH QUICKLY THIS EVENING AS THE STORM MOVES TOWARD THE FOUR
CORNERS REGION.

CAZ523-220300-
/O.NEW.KVEF.DS.W.0001.120121T2013Z-120122T0000Z/
/O.CON.KVEF.HW.W.0002.000000T0000Z-120122T0300Z/
WESTERN MOJAVE DESERT-
INCLUDING...BARSTOW...DAGGETT...FORT IRWIN
1213 PM PST SAT JAN 21 2012

...DUST STORM WARNING IN EFFECT UNTIL 4 PM PST THIS AFTERNOON...
...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM PST THIS
EVENING...

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A DUST STORM
WARNING...WHICH IS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON FOR THE
WESTERN MOJAVE DESERT.

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM PST THIS
EVENING.

* WINDS: SOUTHWEST WINDS 30 TO 45 MPH WITH GUSTS AROUND 65 MPH IN
  THE WESTERN MOJAVE DESERT. THE VISIBILITY WILL BE LESS THAN A
  QUARTER OF A MILE IN BLOWING DUST AND SAND ON INTERSTATE 15
  BETWEEN BARSTOW AND BAKER...AS WELL AS EAST OF BARSTOW ON
  INTERSTATE 40. 

* TIMING: VERY STRONG WINDS AND REDUCED VISIBILITIES WILL CONTINUE
  THROUGH THE AFTERNOON HOURS. WINDS WILL DIMINISH QUICKLY IN THE
  EARLY EVENING.

* LOCATIONS: BARSTOW-DAGGETT...FORT IRWIN...INTERSTATE 15 AND 40.

* IMPACTS: DIFFICULT DRIVING CONDITIONS DUE TO CROSSWINDS. STRONG
  WIND GUSTS COULD BRIEFLY LOWER VISIBILITY TO UNDER A A QUARTER MILE
  AT TIMES IN BLOWING DUST AND BLOWING SAND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING MEANS THAT A HAZARDOUS HIGH WIND EVENT IS
EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH
AND...OR GUSTS OF AT LEAST 58 MPH CAN LEAD TO PROPERTY DAMAGE.

IF YOU SEE AN ADVANCING WALL OF DUST...DO NOT DRIVE INTO IT IF AT
ALL POSSIBLE. BLOWING DUST CAN QUICKLY REDUCE VISIBILITY...CAUSING
ACCIDENTS...THAT MAY INVOLVE CHAIN COLLISIONS AND CREATE MASSIVE
PILEUPS.

&&

$$

CAZ524-220300-
/O.NEW.KVEF.DS.W.0001.120121T2013Z-120122T0000Z/
/O.CON.KVEF.WI.Y.0002.000000T0000Z-120122T0300Z/
EASTERN MOJAVE DESERT-
INCLUDING...BAKER...MOUNTAIN PASS...MITCHELL CAVERNS
1213 PM PST SAT JAN 21 2012

...DUST STORM WARNING IN EFFECT UNTIL 4 PM PST THIS AFTERNOON...
...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS EVENING...

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A DUST STORM
WARNING...WHICH IS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON FOR THE
NORTHEAST SAN BERNARDINO COUNTY...INCLUDING THE MOJAVE NATIONAL
PRESERVE.

A WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS EVENING.

* WINDS: SOUTHWEST WINDS 25 TO 35 MPH WITH GUSTS AROUND 50 MPH. THE
  VISIBILITY WILL BE LESS THAN A QUARTER OF A MILE IN BLOWING DUST
  AND SAND ON INTERSTATE 15 BETWEEN BARSTOW AND BAKER...AS WELL AS
  EAST OF BARSTOW ON INTERSTATE 40.


* TIMING: STRONG WINDS AND REDUCED VISIBILITIES WILL CONTINUE
  THROUGH THE AFTERNOON HOURS. WINDS WILL DIMINISH QUICKLY IN THE
  EARLY EVENING.

* LOCATIONS: INCLUDE BUT NOT LIMITED TO BAKER AND THE MOJAVE
  NATIONAL PRESERVE.

* IMPACTS: DIFFICULT DRIVING CONDITIONS DUE TO CROSSWINDS. 
  STRONG WIND GUSTS COULD BRIEFLY LOWER VISIBILITY TO UNDER A 
  MILE AT TIMES IN BLOWING DUST AND BLOWING SAND.

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.

IF YOU SEE AN ADVANCING WALL OF DUST...DO NOT DRIVE INTO IT IF AT
ALL POSSIBLE. BLOWING DUST CAN QUICKLY REDUCE VISIBILITY...CAUSING
ACCIDENTS...THAT MAY INVOLVE CHAIN COLLISIONS AND CREATE MASSIVE
PILEUPS.

&&

$$

CAZ525-NVZ017-019-020-220300-
/O.CON.KVEF.HW.W.0002.000000T0000Z-120122T0300Z/
MORONGO BASIN-WESTERN CLARK AND SOUTHERN NYE COUNTY-
SPRING MOUNTAINS-RED ROCK CANYON-LAS VEGAS VALLEY-
INCLUDING...MORONGO VALLEY...YUCCA VALLEY...
TWENTYNINE PALMS...PAHRUMP...INDIAN SPRINGS...DESERT ROCK...
AMARGOSA VALLEY...THE TOWN OF MT CHARLESTON...RED ROCK...
LAS VEGAS...NORTH LAS VEGAS...HENDERSON...BOULDER CITY...
SUMMERLIN...NELLIS...MOUNTAINS EDGE...SEVEN HILLS...BLUE DIAMOND
1213 PM PST SAT JAN 21 2012

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM PST THIS
EVENING...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM PST THIS EVENING
FOR THE SPRING MOUNTAINS...RED ROCK CANYON...THE LAS VEGAS
VALLEY...MORONGO BASIN...WESTERN CLARK AND SOUTHERN NYE COUNTIES.

* WINDS: SOUTHWEST WINDS 30 TO 45 MPH WITH GUSTS AROUND 65 MPH IN 
  THE DESERT AREAS WITH GUSTS OVER 70 MPH IN THE SPRING MOUNTAINS. 
  ALTHOUGH WINDS ON THE WEST SIDE OF THE LAS VEGAS VALLEY... 
  PRIMARILY WEST OF RAINBOW BOULEVARD...WILL GUST AROUND 60 MPH AT 
  TIMES...WIND GUSTS IN OTHER PARTS OF THE VALLEY WILL BE LIMITED 
  MAINLY TO 40 TO 50 MPH. 

* TIMING: VERY STRONG WINDS WILL CONTINUE THROUGH THE AFTERNOON 
  HOURS. WINDS WILL DIMINISH QUICKLY IN THE EARLY EVENING.

* LOCATIONS: MT CHARLESTON...RED ROCK CANYON...BLUE
  DIAMOND...SUMMERLIN...MOUNTAINS EDGE...TWENTYNINE PALMS...YUCCA VALLEY.

* IMPACTS: DIFFICULT DRIVING CONDITIONS DUE TO CROSSWINDS. 
  STRONG WIND GUSTS COULD BRIEFLY LOWER VISIBILITY TO UNDER A 
  MILE AT TIMES IN BLOWING DUST AND BLOWING SAND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING MEANS THAT A HAZARDOUS HIGH WIND EVENT IS
EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH
AND...OR GUSTS OF AT LEAST 58 MPH CAN LEAD TO PROPERTY DAMAGE.

&&

$$

AZZ001-003-036-CAZ520>522-NVZ014>016-018-021-022-220300-
/O.CON.KVEF.WI.Y.0002.000000T0000Z-120122T0300Z/
NORTHWEST PLATEAU-NORTHWEST DESERTS-
LAKE MEAD NATIONAL RECREATION AREA-OWENS VALLEY-
WHITE MOUNTAINS OF INYO COUNTY-DEATH VALLEY NATIONAL PARK-
ESMERALDA AND CENTRAL NYE COUNTY-LINCOLN COUNTY-
NORTHEAST CLARK COUNTY-SHEEP RANGE-SOUTHERN CLARK COUNTY-
INCLUDING...COLORADO CITY...
PIPE SPRING NATIONAL MONUMENT...TUWEEP...MT TRUMBULL...KINGMAN...
GOLDEN VALLEY...DOLAN SPRINGS...VALENTINE...WIKIEUP...YUCCA...
BULLHEAD CITY...MOHAVE VALLEY...BISHOP...INDEPENDENCE...LONE PINE...
OLANCHA...FURNACE CREEK...SHOSHONE...BEATTY...GOLDFIELD...
SILVER PEAK...DYER...CALIENTE...PIOCHE...PANACA...HIKO...ALAMO...
RACHEL...MESQUITE...OVERTON...MOAPA...HOOVER DAM...LAUGHLIN...
PRIMM...SEARCHLIGHT...CAL-NEV-ARI
1213 PM PST SAT JAN 21 2012 /113 PM MST SAT JAN 21 2012/

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST /8 PM MST/ THIS
EVENING...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST /8 PM MST/ THIS
EVENING FOR PORTIONS OF FAR SOUTHERN NEVADA...NORTHWEST ARIZONA
AND SOUTHEAST CALIFORNIA.

* WINDS: SOUTHWEST WINDS 25 TO 35 MPH WITH GUSTS AROUND 50 MPH.

* TIMING: WINDS WILL CONTINUE THROUGH THE AFTERNOON HOURS. WINDS
  WILL DIMINISH QUICKLY IN THE EARLY EVENING. 

* LOCATIONS: INCLUDE BUT NOT LIMITED TO BISHOP...PRIMM...
  GOLDFIELD...DEATH VALLEY...MESQUITE...LAKE MEAD NATIONAL
  RECREATION AREA...MOUNT TRUMBULL AND KINGMAN.

* IMPACTS: DIFFICULT DRIVING CONDITIONS DUE TO CROSSWINDS. 
  STRONG WIND GUSTS COULD BRIEFLY LOWER VISIBILITY TO UNDER A 
  MILE AT TIMES IN BLOWING DUST AND BLOWING SAND.

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.

BOATERS IN THE WIND ADVISORY AREA SHOULD USE EXTREME CAUTION WHEN
VENTURING ONTO AREA LAKES. THESE WINDS WILL MAKE OPEN WATERS OF
LAKES ROUGH AND HAZARDOUS.

&&

$$

PIERCE
2 follow-up statements
340 
WWUS75 KVEF 212322
NPWVEF

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
322 PM PST SAT JAN 21 2012

.WIND SPEEDS WILL CONTINUE TO DIMINISH THROUGH THE LATE AFTERNOON
AND EARLY EVENING HOURS AS THE POTENT WINTER STORM MOVES TOWARD
THE FOUR CORNERS REGION.

NVZ017-220300-
/O.CAN.KVEF.HW.W.0002.000000T0000Z-120122T0300Z/
/O.EXA.KVEF.WI.Y.0002.000000T0000Z-120122T0300Z/
WESTERN CLARK AND SOUTHERN NYE COUNTY-
INCLUDING...PAHRUMP...INDIAN SPRINGS...DESERT ROCK...
AMARGOSA VALLEY
322 PM PST SAT JAN 21 2012

...WIND ADVISORY IN EFFECT UNTIL 7 PM PST THIS EVENING...
...HIGH WIND WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A WIND
ADVISORY FOR WESTERN CLARK AND SOUTHERN NYE COUNTIES...WHICH IS
IN EFFECT UNTIL 7 PM PST THIS EVENING.

THE HIGH WIND WARNING HAS BEEN CANCELLED.

* WINDS: WEST TO NORTHWEST WINDS WINDS 20 TO 30 MPH WITH GUSTS
  AROUND 50 MPH.

* TIMING: WINDS WILL SHIFT TO A NORTHWEST DIRECTION AND DIMINISH
  QUICKLY IN THE EARLY EVENING.

* LOCATIONS: PAHRUMP AND INDIAN SPRINGS.

* IMPACTS: DIFFICULT DRIVING CONDITIONS DUE TO CROSSWINDS. 
  STRONG WIND GUSTS COULD BRIEFLY LOWER VISIBILITY TO UNDER A 
  MILE AT TIMES IN BLOWING DUST AND BLOWING SAND.

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.

&&

$$

CAZ520-521-220030-
/O.CAN.KVEF.WI.Y.0002.000000T0000Z-120122T0300Z/
OWENS VALLEY-WHITE MOUNTAINS OF INYO COUNTY-
322 PM PST SAT JAN 21 2012

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS CANCELLED THE WIND
ADVISORY FOR THE OWENS VALLEY AND WHITE MOUNTAINS.

NORTH WINDS WILL CONTINUE TO SUBSIDE FOLLOWING THE PASSAGE OF A
COLD FRONT. A FEW GUSTS UP TO 35 MPH ARE POSSIBLE THROUGH 7 PM.
 

$$

CAZ523-220300-
/O.CON.KVEF.DS.W.0001.000000T0000Z-120122T0000Z/
/O.CON.KVEF.HW.W.0002.000000T0000Z-120122T0300Z/
WESTERN MOJAVE DESERT-
INCLUDING...BARSTOW...DAGGETT...FORT IRWIN
322 PM PST SAT JAN 21 2012

...DUST STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...
...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM PST THIS
EVENING...

A DUST STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON FOR THE WESTERN MOJAVE DESERT.

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM PST THIS
EVENING.

* WINDS: SOUTHWEST WINDS 30 TO 45 MPH WITH GUSTS AROUND 65 MPH IN 
  THE WESTERN MOJAVE DESERT. THE VISIBILITY WILL BE LESS THAN A 
  QUARTER OF A MILE IN BLOWING DUST AND SAND ON INTERSTATE 15 
  BETWEEN BARSTOW AND BAKER...AS WELL AS EAST OF BARSTOW ON 
  INTERSTATE 40. 

* TIMING: VERY STRONG WINDS AND REDUCED VISIBILITIES WILL 
  CONTINUE THROUGH THE AFTERNOON HOURS. WINDS WILL DIMINISH 
  QUICKLY IN THE EARLY EVENING.

* LOCATIONS: BARSTOW-DAGGETT...FORT IRWIN...INTERSTATE 15 AND 
  40.

* IMPACTS: DIFFICULT DRIVING CONDITIONS DUE TO CROSSWINDS. 
  STRONG WIND GUSTS COULD BRIEFLY LOWER VISIBILITY TO UNDER A 
  A QUARTER MILE AT TIMES IN BLOWING DUST AND BLOWING SAND. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING MEANS THAT A HAZARDOUS HIGH WIND EVENT IS
EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH
AND...OR GUSTS OF AT LEAST 58 MPH CAN LEAD TO PROPERTY DAMAGE.

IF YOU SEE AN ADVANCING WALL OF DUST...DO NOT DRIVE INTO IT IF AT
ALL POSSIBLE. BLOWING DUST CAN QUICKLY REDUCE VISIBILITY...CAUSING
ACCIDENTS...THAT MAY INVOLVE CHAIN COLLISIONS AND CREATE MASSIVE
PILEUPS.

&&

$$

CAZ524-220300-
/O.CON.KVEF.DS.W.0001.000000T0000Z-120122T0000Z/
/O.CON.KVEF.WI.Y.0002.000000T0000Z-120122T0300Z/
EASTERN MOJAVE DESERT-
INCLUDING...BAKER...MOUNTAIN PASS...MITCHELL CAVERNS
322 PM PST SAT JAN 21 2012

...DUST STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON.

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS EVENING...

A DUST STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON FOR THE EASTERN MOJAVE DESERT...INCLUDING THE MOJAVE
NATIONAL PRESERVE.

 A WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS
EVENING. 

* WINDS: SOUTHWEST WINDS 25 TO 35 MPH WITH GUSTS AROUND 50 MPH. 
  THE VISIBILITY WILL BE LESS THAN A QUARTER OF A MILE IN BLOWING 
  DUST AND SAND ON INTERSTATE 15 BETWEEN BARSTOW AND BAKER...AS 
  WELL AS EAST OF BARSTOW ON INTERSTATE 40. 

* TIMING: STRONG WINDS AND REDUCED VISIBILITIES WILL CONTINUE 
  THROUGH THE AFTERNOON HOURS. WINDS WILL DIMINISH QUICKLY IN 
  THE EARLY EVENING.

* LOCATIONS: INCLUDE BUT NOT LIMITED TO BAKER AND THE MOJAVE 
  NATIONAL PRESERVE.

* IMPACTS: DIFFICULT DRIVING CONDITIONS DUE TO CROSSWINDS. 
  STRONG WIND GUSTS COULD BRIEFLY LOWER VISIBILITY TO UNDER A 
  MILE AT TIMES IN BLOWING DUST AND BLOWING SAND.

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.

IF YOU SEE AN ADVANCING WALL OF DUST...DO NOT DRIVE INTO IT IF AT
ALL POSSIBLE. BLOWING DUST CAN QUICKLY REDUCE VISIBILITY...CAUSING
ACCIDENTS...THAT MAY INVOLVE CHAIN COLLISIONS AND CREATE MASSIVE
PILEUPS.

&&

$$

CAZ525-NVZ019-020-220300-
/O.CON.KVEF.HW.W.0002.000000T0000Z-120122T0300Z/
MORONGO BASIN-SPRING MOUNTAINS-RED ROCK CANYON-LAS VEGAS VALLEY-
INCLUDING...MORONGO VALLEY...YUCCA VALLEY...
TWENTYNINE PALMS...THE TOWN OF MT CHARLESTON...RED ROCK...
LAS VEGAS...NORTH LAS VEGAS...HENDERSON...BOULDER CITY...
SUMMERLIN...NELLIS...MOUNTAINS EDGE...SEVEN HILLS...BLUE DIAMOND
322 PM PST SAT JAN 21 2012

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM PST THIS
EVENING...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM PST THIS EVENING
FOR THE SPRING MOUNTAINS...RED ROCK CANYON...AND LAS VEGAS
VALLEY.

* WINDS: SOUTHWEST WINDS 25 TO 35 MPH WITH GUSTS AROUND 60 MPH IN
  THE DESERT AREAS WITH GUSTS OVER 65 MPH IN THE SPRING
  MOUNTAINS. ALTHOUGH WINDS ON THE WEST SIDE OF THE LAS VEGAS
  VALLEY... PRIMARILY WEST OF RAINBOW BOULEVARD...WILL GUST AROUND
  60 MPH AT TIMES...WIND GUSTS IN OTHER PARTS OF THE VALLEY WILL
  BE LIMITED MAINLY TO 40 TO 50 MPH.

* TIMING: VERY STRONG WINDS WILL DIMINISH QUICKLY IN THE EARLY
  EVENING.

* LOCATIONS: MT CHARLESTON...RED ROCK CANYON...BLUE DIAMOND...
  SUMMERLIN...MOUNTAINS EDGE AND LAS VEGAS.

* IMPACTS: DIFFICULT DRIVING CONDITIONS DUE TO CROSSWINDS. 
  STRONG WIND GUSTS COULD BRIEFLY LOWER VISIBILITY TO UNDER A 
  MILE AT TIMES IN BLOWING DUST AND BLOWING SAND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING MEANS THAT A HAZARDOUS HIGH WIND EVENT IS
EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH
AND...OR GUSTS OF AT LEAST 58 MPH CAN LEAD TO PROPERTY DAMAGE.

&&

$$

AZZ001-003-036-CAZ522-NVZ014>016-018-021-022-220300-
/O.CON.KVEF.WI.Y.0002.000000T0000Z-120122T0300Z/
NORTHWEST PLATEAU-NORTHWEST DESERTS-
LAKE MEAD NATIONAL RECREATION AREA-DEATH VALLEY NATIONAL PARK-
ESMERALDA AND CENTRAL NYE COUNTY-LINCOLN COUNTY-
NORTHEAST CLARK COUNTY-SHEEP RANGE-SOUTHERN CLARK COUNTY-
INCLUDING...COLORADO CITY...
PIPE SPRING NATIONAL MONUMENT...TUWEEP...MT TRUMBULL...KINGMAN...
GOLDEN VALLEY...DOLAN SPRINGS...VALENTINE...WIKIEUP...YUCCA...
BULLHEAD CITY...MOHAVE VALLEY...FURNACE CREEK...SHOSHONE...BEATTY...
GOLDFIELD...SILVER PEAK...DYER...CALIENTE...PIOCHE...PANACA...
HIKO...ALAMO...RACHEL...MESQUITE...OVERTON...MOAPA...HOOVER DAM...
LAUGHLIN...PRIMM...SEARCHLIGHT...CAL-NEV-ARI
322 PM PST SAT JAN 21 2012 /422 PM MST SAT JAN 21 2012/

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST /8 PM MST/ THIS
EVENING...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST /8 PM MST/ THIS
EVENING FOR FOR PORTIONS OF FAR SOUTHERN NEVADA...NORTHWEST ARIZONA
AND SOUTHEAST CALIFORNIA.. 

* WINDS: SOUTHWEST WINDS 25 TO 35 MPH WITH GUSTS AROUND 50 MPH.

* TIMING: WINDS WILL DIMINISH QUICKLY IN THE EARLY EVENING.

* LOCATIONS: INCLUDE BUT NOT LIMITED TO PRIMM...
  GOLDFIELD...DEATH VALLEY...MESQUITE...LAKE MEAD NATIONAL
  RECREATION AREA...MOUNT TRUMBULL AND KINGMAN.

* IMPACTS: DIFFICULT DRIVING CONDITIONS DUE TO CROSSWINDS. 
  STRONG WIND GUSTS COULD BRIEFLY LOWER VISIBILITY TO UNDER A 
  MILE AT TIMES IN BLOWING DUST AND BLOWING SAND.

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.

BOATERS IN THE WIND ADVISORY AREA SHOULD USE EXTREME CAUTION WHEN
VENTURING ONTO AREA LAKES. THESE WINDS WILL MAKE OPEN WATERS OF
LAKES ROUGH AND HAZARDOUS.

&&

$$

PIERCE
746 
WWUS75 KVEF 220001
NPWVEF

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
401 PM PST SAT JAN 21 2012

.WIND SPEEDS WILL CONTINUE TO DIMINISH THROUGH THE LATE AFTERNOON
AND EARLY EVENING HOURS AS THE POTENT WINTER STORM MOVES TOWARD THE
FOUR CORNERS REGION.

CAZ523-220300-
/O.EXP.KVEF.DS.W.0001.000000T0000Z-120122T0000Z/
/O.CON.KVEF.HW.W.0002.000000T0000Z-120122T0300Z/
WESTERN MOJAVE DESERT-
INCLUDING...BARSTOW...DAGGETT...FORT IRWIN
401 PM PST SAT JAN 21 2012

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM PST THIS
EVENING...
...DUST STORM WARNING WILL EXPIRE AT 4 PM PST THIS AFTERNOON...

THE DUST STORM WARNING WILL EXPIRE AT 4 PM PST THIS AFTERNOON FOR
THE WESTERN MOJAVE DESERT.

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM PST THIS
EVENING.

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM PST THIS
EVENING.

* WINDS: SOUTHWEST WINDS 30 TO 45 MPH WITH GUSTS AROUND 60 MPH IN
  THE WESTERN MOJAVE DESERT. REDUCED VISIBILITY TO LESS THAN ONE
  MILE AT TIMES IN BLOWING DUST AND SAND. 

* TIMING: STRONG WINDS AND LOCALLY REDUCED VISIBILITIES WILL
  CONTINUE INTO THE EARLY EVENING. WINDS WILL DIMINISH QUICKLY IN
  THE EARLY EVENING.

* LOCATIONS: BARSTOW-DAGGETT...FORT IRWIN...INTERSTATE 15 AND 
  40. 

* IMPACTS: DIFFICULT DRIVING CONDITIONS DUE TO CROSSWINDS. STRONG
  WIND GUSTS COULD BRIEFLY LOWER VISIBILITY TO UNDER A A QUARTER
  MILE AT TIMES IN BLOWING DUST AND BLOWING SAND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING MEANS THAT A HAZARDOUS HIGH WIND EVENT IS
EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH
AND...OR GUSTS OF AT LEAST 58 MPH CAN LEAD TO PROPERTY DAMAGE.

&&

$$

CAZ524-220300-
/O.EXP.KVEF.DS.W.0001.000000T0000Z-120122T0000Z/
/O.CON.KVEF.WI.Y.0002.000000T0000Z-120122T0300Z/
EASTERN MOJAVE DESERT-
INCLUDING...BAKER...MOUNTAIN PASS...MITCHELL CAVERNS
401 PM PST SAT JAN 21 2012

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS EVENING...
...DUST STORM WARNING WILL EXPIRE AT 4 PM PST THIS AFTERNOON...

THE DUST STORM WARNING WILL EXPIRE AT 4 PM PST THIS AFTERNOON FOR
THE EASTERN MOJAVE DESERT.

A WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS EVENING.

* WINDS: SOUTHWEST WINDS 25 TO 35 MPH WITH GUSTS AROUND 50 MPH.REDUCED
  VISIBILITY TO LESS THAN ONE MILE AT TIMES IN BLOWING DUST AND
  SAND.

* TIMING: STRONG WINDS AND LOCALLY REDUCED VISIBILITIES WILL
  CONTINUE INTO THE EARLY EVENING. WINDS WILL DIMINISH QUICKLY IN
  THE EARLY EVENING.

* LOCATIONS: INCLUDE BUT NOT LIMITED TO BAKER AND THE MOJAVE 
  NATIONAL PRESERVE.

* IMPACTS: DIFFICULT DRIVING CONDITIONS DUE TO CROSSWINDS. 
  STRONG WIND GUSTS COULD BRIEFLY LOWER VISIBILITY TO UNDER A 
  MILE AT TIMES IN BLOWING DUST AND BLOWING SAND.

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.

&&

$$

CAZ525-NVZ019-020-220300-
/O.CON.KVEF.HW.W.0002.000000T0000Z-120122T0300Z/
MORONGO BASIN-SPRING MOUNTAINS-RED ROCK CANYON-LAS VEGAS VALLEY-
INCLUDING...MORONGO VALLEY...YUCCA VALLEY...
TWENTYNINE PALMS...THE TOWN OF MT CHARLESTON...RED ROCK...
LAS VEGAS...NORTH LAS VEGAS...HENDERSON...BOULDER CITY...
SUMMERLIN...NELLIS...MOUNTAINS EDGE...SEVEN HILLS...BLUE DIAMOND
401 PM PST SAT JAN 21 2012

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM PST THIS
EVENING...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM PST THIS EVENING
FOR THE SPRING MOUNTAINS...RED ROCK CANYON AND THE LAS VEGAS VALLEY.

* WINDS: SOUTHWEST WINDS 25 TO 35 MPH WITH GUSTS AROUND 60 MPH IN 
  THE DESERT AREAS WITH GUSTS OVER 65 MPH IN THE SPRING MOUNTAINS. 
  ALTHOUGH WINDS ON THE WEST SIDE OF THE LAS VEGAS VALLEY... 
  PRIMARILY WEST OF RAINBOW BOULEVARD...WILL GUST AROUND 60 MPH AT 
  TIMES...WIND GUSTS IN OTHER PARTS OF THE VALLEY WILL BE LIMITED 
  MAINLY TO 40 TO 50 MPH. 

* TIMING: VERY STRONG WINDS WILL DIMINISH QUICKLY IN THE EARLY 
  EVENING.

* LOCATIONS: MT CHARLESTON...RED ROCK CANYON...BLUE DIAMOND... 
  SUMMERLIN...MOUNTAINS EDGE AND LAS VEGAS.

* IMPACTS: DIFFICULT DRIVING CONDITIONS DUE TO CROSSWINDS. 
  STRONG WIND GUSTS COULD BRIEFLY LOWER VISIBILITY TO UNDER A 
  MILE AT TIMES IN BLOWING DUST AND BLOWING SAND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING MEANS THAT A HAZARDOUS HIGH WIND EVENT IS
EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH
AND...OR GUSTS OF AT LEAST 58 MPH CAN LEAD TO PROPERTY DAMAGE.

&&

$$

AZZ001-003-036-CAZ522-NVZ014>018-021-022-220300-
/O.CON.KVEF.WI.Y.0002.000000T0000Z-120122T0300Z/
NORTHWEST PLATEAU-NORTHWEST DESERTS-
LAKE MEAD NATIONAL RECREATION AREA-DEATH VALLEY NATIONAL PARK-
ESMERALDA AND CENTRAL NYE COUNTY-LINCOLN COUNTY-
NORTHEAST CLARK COUNTY-WESTERN CLARK AND SOUTHERN NYE COUNTY-
SHEEP RANGE-SOUTHERN CLARK COUNTY-
INCLUDING...COLORADO CITY...
PIPE SPRING NATIONAL MONUMENT...TUWEEP...MT TRUMBULL...KINGMAN...
GOLDEN VALLEY...DOLAN SPRINGS...VALENTINE...WIKIEUP...YUCCA...
BULLHEAD CITY...MOHAVE VALLEY...FURNACE CREEK...SHOSHONE...BEATTY...
GOLDFIELD...SILVER PEAK...DYER...CALIENTE...PIOCHE...PANACA...
HIKO...ALAMO...RACHEL...MESQUITE...OVERTON...MOAPA...PAHRUMP...
INDIAN SPRINGS...DESERT ROCK...AMARGOSA VALLEY...HOOVER DAM...
LAUGHLIN...PRIMM...SEARCHLIGHT...CAL-NEV-ARI
401 PM PST SAT JAN 21 2012 /501 PM MST SAT JAN 21 2012/

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST /8 PM MST/ THIS
EVENING...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST /8 PM MST/ THIS
EVENING FOR PORTIONS OF FAR SOUTHERN NEVADA...NORTHWEST ARIZONA
AND SOUTHEAST CALIFORNIA..

* WINDS: SOUTHWEST WINDS 25 TO 35 MPH WITH GUSTS AROUND 50 MPH.

* TIMING: WINDS WILL DIMINISH QUICKLY IN THE EARLY EVENING.

* LOCATIONS: INCLUDE BUT NOT LIMITED TO PRIMM... GOLDFIELD... 
  DEATH VALLEY...MESQUITE...LAKE MEAD NATIONAL RECREATION 
  AREA... MOUNT TRUMBULL AND KINGMAN.

* IMPACTS: DIFFICULT DRIVING CONDITIONS DUE TO CROSSWINDS. 
  STRONG WIND GUSTS COULD BRIEFLY LOWER VISIBILITY TO UNDER A 
  MILE AT TIMES IN BLOWING DUST AND BLOWING SAND.

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.

BOATERS IN THE WIND ADVISORY AREA SHOULD USE EXTREME CAUTION WHEN
VENTURING ONTO AREA LAKES. THESE WINDS WILL MAKE OPEN WATERS OF
LAKES ROUGH AND HAZARDOUS.

&&

$$

PIERCE

What forecasters said that day

The local office's own words before this dust storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Las Vegas, NV wrote its last area forecast discussion before this dust storm warning went out at Jan 21, 10:16 AM PST, 1 hour 57 minutes earlier.

Area forecast discussion, Jan 21, 10:16 AM PST, 1 hour 57 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
1016 AM PST SAT JAN 21 2012

.SYNOPSIS...A PACIFIC STORM WILL MOVE ACROSS NEVADA TODAY RESULTING
IN LOCALLY STRONG WINDS AND A CHANCE OF RAIN AND SNOW OVER MUCH OF
THE REGION WITH HEAVY SNOW IN THE SIERRA. GENERALLY DRY CONDITIONS
ARE EXPECTED TONIGHT THROUGH SUNDAY BEFORE ANOTHER STORM IMPACTS THE
AREA SUNDAY NIGHT INTO MONDAY. GENERALLY DRY CONDITIONS THEN
EXPECTED THROUGH THE REMAINDER OF NEXT WEEK.
&&

.UPDATE...WARM MOIST CONVEYOR THAT CAME ACROSS THE AREA DURING THE
EARLY MORNING HOURS NOW OVER FAR SOUTHEAST CALIFORNIA AND WESTERN
ARIZONA. BAND IS RAPIDLY MOVING EAST AS MODELS DEPICT 110-130 KT JET
OVER SOUTHERN CALIFORNIA AND ARIZONA. MEANWHILE...MUCH
COLDER/UNSTABLE AIR WILL BE PUSHING EAST ACROSS INYO...NYE AND
LINCOLN COUNTIES FOR MUCH OF THE REST OF TODAY ASSOCIATED WITH UPPER
TROUGH.

AS FAR AS HEADLINES GOES. SO FAR STRONG WIND GUSTS HAVE BEEN VERY
ISOLATED. BELIEVE THAT IS ABOUT TO CHANGE AS VISIBLE SATELLITE SHOWS
LARGE AREA OF CLEARING OVER DEATH VALLEY NP AND SOUTHEAST INYO
COUNTY. JUST WITHIN THE PAST HOUR GETTING REPORTS OF WIND GUSTS IN
EXCESS OF 50 MPH AT PAHRUMP AND 60 MPH AT DESERT ROCK AIRPORT NEAR
HIGHWAY 95. A GUST TO 61 MPH IN RED ROCK CANYON JUST CAME IN AS
WELL. IN THE UPDATE WILL BE UPGRADING NV ZONE 17 AND CA ZONE 525
INTO A HIGH WIND WARNING AND WILL BE ADDING THE THE MENTION OF
BLOWING DUST/SAND DUE TO OUR RECENT DRY SPELL.

IN REGARD TO THE WINTER WEATHER PRODUCTS. CONVECTIVE BANDS
DEVELOPING OVER THE NORTHERN HALF OF LINCOLN COUNTY AS I WRITE. COLD
AIR NOW JUST ARRIVING WITH ANY SNOW LIKELY FALLING ON THE HIGHEST
PEAKS OF NORTHERN LINCOLN COUNTY. GETTING SOME LIGHTING STRIKES OVER
CENTRAL NYE COUNTY SO WILL INCLUDE THE MENTION OF THUNDERSNOW UP
THERE THE REST OF THE DAY AS WELL. IN LINCOLN COUNTY...THE SNOW
LEVEL WILL BE FALLING TO 5000 FEET BY LATE AFTERNOON WITH SNOW
AMOUNTS OF 3 TO 5 INCHES MOST LIKELY FALLING ABOVE 6000 FEET.
&&

.AVIATION...FOR MCCARRAN...MOST IF NOT ALL OF THE SHOWER ACTIVITY IN
THE LAS VEGAS VALLEY SHOULD END AROUND 21Z TODAY. CIGS AS LOW AS
5K-8K FEET ARE LIKELY THROUGH THEN BUT AFTERWARDS CLOUDS SHOULD
BREAK UP MORE AND BECOME SCT TO EVENTUALLY FEW. THE PRIMARY HAZARD
LATE THIS MORNING INTO EARLY THIS EVENING WILL BE STRONG SOUTHWEST
WINDS THAT SHOULD REACH AS HIGH AS 30-35 KTS SUSTAINED WITH GUSTS OF
40-45 KTS. THERE IS A VERY SMALL CHANCE WE COULD REACH AIRPORT
WEATHER WARNING CRITERIA FOR WIND BUT AT THIS TIME IT APPEARS WE
SHOULD FALL JUST SHORT. MECHANICAL TURBULENCE WILL BE LIKELY DUE TO
THE STRONG WINDS ALOFT. BLOWING DUST MAY ALSO OCCUR AND REDUCE VSBY
ABRUPTLY. WINDS SHOULD SHIFT MORE WEST AROUND 01Z SUNDAY...THEN TURN
TO NORTHWEST AROUND 03Z SUNDAY WITH SPEEDS LOWERING TO 12-18 KTS
SUSTAINED. AROUND 08Z SUNDAY...SURFACE PRESSURE GRADIENTS SHOULD
RELAX ENOUGH THAT WINDS MAY FAVOR A RETURN TO TYPICAL SOUTHWEST
NIGHTTIME DRAINAGE WINDS BUT GIVEN THE LOW CONFIDENCE IN A DIRECTION
WILL JUST GO WITH VARIABLE DIRECTION IN THE TAF FOR THEN.

FOR THE REST OF SOUTHERN NEVADA...NORTHWEST ARIZONA...AND SOUTHEAST
CALIFORNIA...MOST VALLEYS SHOULD SEE AN END TO SHOWERS AROUND 21Z
TODAY HOWEVER STEADIER PRECIPITATION WILL CONTINUE OVER THE HIGHER
MOUNTAINS OF LINCOLN AND MOHAVE COUNTIES AS WELL AS THE EASTERN
SLOPES OF THE SOUTHERN SIERRA THROUGH AROUND 00Z SUNDAY. CIGS AS LOW
AS 4K-8K FEET IN THE VALLEYS WITH MOUNTAIN OBSCURATIONS ARE
EXPECTED...THOUGH CLOUDS SHOULD BECOME MORE SCATTERED OVER THE
VALLEYS BY THIS AFTERNOON AS DRIER AIR WORKS IN. THE PRIMARY HAZARD
LATE THIS MORNING INTO EARLY THIS EVENING WILL BE GUSTY SOUTHWEST
WINDS SUSTAINED AT 25-45 KTS WITH GUSTS OF 35-55 KTS AND LOCAL GUSTS
AROUND 65 KTS. AREAS OF BLDU REDUCING VSBY ARE POSSIBLE ESPECIALLY
DOWNWIND OF DRY LAKE BEDS. MECHANICAL TURBULENCE IS LIKELY DUE TO
THE STRONG WINDS ALOFT. MOUNTAIN WAVES WILL BE POSSIBLE TO THE LEE
OF TALLER MOUNTAINS. WINDS SHOULD BEGIN TO LESSEN BETWEEN 01Z AND
06Z SUNDAY AS A COLD FRONT MOVES ACROSS THE AREA AND SHIFTS WINDS TO
THE NORTHWEST. WINDS TONIGHT WILL MAINLY BE 5-10 KTS.
&&

.PREV DISCUSSION...
250 AM PST SAT JAN 21 2012

.SHORT TERM...TODAY THROUGH MONDAY NIGHT...A PACIFIC STORM PUSHING
ACROSS NORTHERN/CENTRAL CALIFORNIA THIS MORNING WILL RAPIDLY PUSH
ACROSS NEVADA DURING THE DAY TODAY. THIS IS BASICALLY THE FIRST
STORM THIS WINTER TO BRING A MENTION OF PRECIPITATION TO ALL OF THE
FORECAST AREA. THE BIGGEST IMPACT ON PRECIPITATION WILL BE OVER THE
SOUTHERN SIERRA THIS MORNING AND THEN ACROSS LINCOLN COUNTY BY LATE
MORNING INTO THIS AFTERNOON. CURRENT WINTER STORM WARNINGS...
SOUTHERN SIERRA...AND WINTER WEATHER ADVISORY FOR LINCOLN COUNTY
LOOK GOOD. SYSTEM TO PUSH EAST OF THE CWA TONIGHT WITH DRY
CONDITIONS PUSHING OVER THE AREA OVERNIGHT INTO EARLY SUNDAY.
HOWEVER THE NEXT PACIFIC STORM WILL BEGIN TO IMPACT THE SOUTHERN
SIERRA SUNDAY AFTERNOON WITH THE SYSTEM CROSSING OVER THE AREA ON
MONDAY. ONCE AGAIN THIS SYSTEM WILL BRING A CHANCE OF PRECIPITATION
TO THE AREA WITH THE MAIN CONCERN ONCE AGAIN BEING THE SOUTHERN
SIERRA AS WELL AS THE MOUNTAINS OF SOUTHERN NEVADA AND NORTHWEST
MOHAVE COUNTY...MAINLY ON MONDAY. DRYING WILL BE SEEN MONDAY NIGHT
AS THE SYSTEM EXITS THE REGION.

BESIDES THE PRECIPITATION...THE NEXT MAJOR CONCERN WILL BE WINDS.
INCREASED SURFACE PRESSURE GRADIENTS/FLOW ALOFT/ALONG WITH LOCALIZED
DOWNSLOPE WINDS FORMING EARLY THIS MORNING INTO THE AFTERNOON WILL
MAKE FOR A WINDY DAY ACROSS THE AREA. THE HIGH WIND WARNINGS FOR
WESTERN SAN BERNARDINO COUNTY AS WELL AS THE SPRING MOUNTAINS/LAS
VEGAS VALLEY FOR THE DAY ARE STILL IN AFFECT...WHILE WIND ADVISORIES
ARE IN PLACE FOR MUCH OF THE REMAINDER OF THE CWA. AS THE TROUGH
SHIFTS OVER THE AREA LATE THIS AFTERNOON/EARLY THIS EVENING...EXPECT
WINDS TO DECREASE FAIRLY RAPIDLY. DO NOT EXPECT AS MUCH WIND WITH
THE SYSTEM FOR LATE SUNDAY INTO MONDAY...BUT LOCALLY BREEZY TO WINDY
CONDITIONS WILL LIKELY BE SEEN ONCE AGAIN.

WITH THE TROUGH PASSAGE/CLOUDS/SHOWERS TODAY LOOK FOR TEMPERATURES
TO COOL OVER THOSE REPORTED ON SATURDAY WITH LITTLE CHANGE EXPECTED
OVER THE NORTH SUNDAY AND MONDAY...WHILE THE SOUTHERN PORTION SHOULD
SEE A FEW ADDITIONAL DEGREES OF COOLING. WITH THIS SAID HOWEVER...
TEMPERATURES WILL GENERALLY BE AROUND NORMAL THROUGH THE SHORT TERM.

.LONG TERM...TUESDAY THROUGH FRIDAY...THE SYSTEM FROM MONDAY WILL
HAVE CROSSED THE AREA BY TUESDAY MORNING LEAVING BEHIND A SMALL
AMOUNT OF RESIDUAL MOISTURE. LEFT IN REDUCED POPS FOR LINCOLN
COUNTY. WITH RIDGING BUILDING IN EXPECT THE CLOUD COVER TO DECREASE
AND TEMPERATURES TO RISE ABOVE NORMAL LEVELS AS THE WEEK PROGRESSES.
ONLY PARAMETER OF NOTE IS THE POTENTIAL FOR GUSTY NORTH WINDS IN THE
LOWER COLORADO RIVER VALLEY TUESDAY AS HIGH PRESSURE BUILDS IN.
&&

.VEF WATCHES/WARNINGS/ADVISORIES...
NV...HIGH WIND WARNING UNTIL 7 PM PST THIS EVENING FOR NVZ017-019-020.
     WIND ADVISORY UNTIL 7 PM PST THIS EVENING FOR NVZ014>016-018-021-
     022.
     WINTER WEATHER ADVISORY UNTIL 7 PM PST THIS EVENING FOR NVZ015.
AZ...WIND ADVISORY UNTIL 8 PM MST THIS EVENING FOR AZZ001-003-036.
CA...HIGH WIND WARNING UNTIL 7 PM PST THIS EVENING FOR CAZ523-525.
     WINTER STORM WARNING UNTIL 4 PM PST THIS AFTERNOON FOR CAZ519.
     WIND ADVISORY UNTIL 7 PM PST THIS EVENING FOR CAZ520>522-524.
&&

UPDATE...PIERCE/STACHELSKI
PREV DISCUSSION...JENSEN/JACQUES

HTTP://WEATHER.GOV/LASVEGAS
Hazardous weather outlook, Jan 21, 5:32 AM PST, 6 hours 41 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LAS VEGAS NV
532 AM PST SAT JAN 21 2012

CAZ519-220000-
EASTERN SIERRA SLOPES-
532 AM PST SAT JAN 21 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CALIFORNIA.

.DAY ONE...TODAY AND TONIGHT

A STRONG PACIFIC STORM WILL MOVE ACROSS THE AREA TODAY RESULTING
IN HEAVY SNOW AND GUSTY WINDS OVER THE EASTERN SIERRA SLOPES.
A WINTER STORM WARNING REMAINS IN EFFECT THROUGH THIS AFTERNOON
ALTHOUGH THE SNOW WILL BEGIN TO TAPER OFF BY LATE MORNING INTO THE
AFTERNOON. DRYING WILL BE SEEN TONIGHT.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

ANOTHER PACIFIC STORM WILL MOVE INTO THE AREA SUNDAY AFTERNOON
WITH SNOW LIKELY ACCUMULATING ONCE AGAIN LATE SUNDAY NIGHT INTO
MONDAY. DRY CONDITIONS ARE THEN EXPECTED TUESDAY THROUGH FRIDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. HOWEVER...
SPOTTERS ARE ENCOURAGED TO REPORT ANY SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

NVZ015-220000-
LINCOLN COUNTY-
532 AM PST SAT JAN 21 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHERN
NEVADA.

.DAY ONE...TODAY AND TONIGHT

A PACIFIC STORM WILL BRING RAIN AND SNOW TO THE AREA DURING THE
DAY WITH ACCUMULATING SNOW POSSIBLE MAINLY NORTH AND EAST OF
CALIENTE THIS AFTERNOON. A WINTER WEATHER ADVISORY IS IN EFFECT
FOR THIS AREA THROUGH EARLY EVENING. IN ADDITION TO THE
SNOW...LOCAL GUSTY WINDS WILL ALSO BE SEEN WITH A WIND ADVISORY IN
EFFECT THROUGH THE DAY ALSO. DRYING CONDITIONS WITH DECREASED WIND WILL
BE SEEN OVERNIGHT.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

DRY CONDITIONS SHOULD BE SEEN ON SUNDAY BEFORE ANOTHER PACIFIC
STORM MOVES ACROSS THE AREA ON MONDAY...RESULTING IN A CHANCE OF
RAIN AND SNOW ONCE AGAIN. DRY CONDITIONS ARE THEN EXPECTED TUESDAY
THROUGH FRIDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. HOWEVER...
SPOTTERS ARE ENCOURAGED TO REPORT ANY SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

CAZ523-NVZ019-020-220000-
WESTERN MOJAVE DESERT-SPRING MOUNTAINS-LAS VEGAS VALLEY-
532 AM PST SAT JAN 21 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CALIFORNIA AND
SOUTHERN NEVADA.

.DAY ONE...TODAY AND TONIGHT

A STRONG PACIFIC STORM WILL PRODUCED SCATTERED SHOWERS ACROSS THE
AREA TODAY...HOWEVER THE MAIN IMPACT WILL BE THE STRONG AND GUSTY
WINDS. EXPECTED WIND GUSTS TO OVER 60 MPH HAS KEPT THE CURRENT
HIGH WIND WARNING IN PLACE THROUGH EARLY THIS EVENING. DECREASING
WINDS AND DRIER CONDITIONS WILL BE SEEN TONIGHT.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

DRY CONDITIONS SHOULD BE SEEN SUNDAY HOWEVER ANOTHER PACIFIC STORM
WILL BE MOVING ACROSS THE AREA ON MONDAY. THIS WILL RESULT IN
LOCAL GUSTY WINDS ONCE AGAIN ALONG WITH A CHANCE OF SHOWERS. DRY
CONDITIONS ARE EXPECTED TUESDAY THROUGH FRIDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. HOWEVER...
SPOTTERS ARE ENCOURAGED TO REPORT ANY SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

AZZ001-003-036-CAZ520>522-524-525-NVZ014-016>018-021-022-220000-
NORTHWEST PLATEAU-NORTHWEST DESERTS-
LAKE MEAD NATIONAL RECREATION AREA-OWENS VALLEY-
WHITE MOUNTAINS OF INYO COUNTY-DEATH VALLEY NATIONAL PARK-
EASTERN MOJAVE DESERT-MORONGO BASIN-
ESMERALDA AND CENTRAL NYE COUNTY-NORTHEAST CLARK COUNTY-
WESTERN CLARK AND SOUTHERN NYE COUNTY-SHEEP RANGE-
SOUTHERN CLARK COUNTY-
532 AM PST SAT JAN 21 2012 /632 AM MST SAT JAN 21 2012/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST
ARIZONA...CALIFORNIA AND SOUTHERN NEVADA.

.DAY ONE...TODAY AND TONIGHT

A STRONG PACIFIC STORM WILL MOVE ACROSS THE AREA TODAY RESULTING
IN SCATTERED SHOWERS. HOWEVER THE MAIN IMPACT WILL BE LOCAL GUSTY
WINDS RESULTING IN A WIND ADVISORY BEING IN EFFECT THROUGH EARLY
THIS EVENING. DECREASING WINDS AND DRIER CONDITIONS WILL BE SEEN
TONIGHT AS THE STORM MOVES OUT OF THE AREA.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

DRY CONDITIONS ARE LOOKED FOR ON SUNDAY HOWEVER ANOTHER PACIFIC
STORM WILL MOVE ACROSS THE REGION LATE SUNDAY INTO MONDAY. THIS
STORM WILL LIKELY PRODUCE SCATTERED SHOWERS AND LOCAL GUSTY WINDS
ONCE AGAIN. DRY CONDITIONS THEN RETURN TO THE AREA TUESDAY THROUGH FRIDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. HOWEVER...
SPOTTERS ARE ENCOURAGED TO REPORT ANY SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

AZZ002-CAZ526-527-220000-
LOWER COLORADO RIVER VALLEY-CADIZ BASIN-SAN BERNARDINO COUNTY-
UPPER COLORADO RIVER VALLEY-
532 AM PST SAT JAN 21 2012 /632 AM MST SAT JAN 21 2012/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST
ARIZONA AND CALIFORNIA.

.DAY ONE...TODAY AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. HOWEVER A PACIFIC
STORM WILL CROSS OVER THE AREA TODAY BRINGING A CHANCE OF SHOWERS
TO THE REGION THROUGH EARLY THIS EVENING

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. HOWEVER ANOTHER
PACIFIC STORM WILL MOVE THROUGH THE REGION ON MONDAY ONCE AGAIN
BRINGING A CHANCE OF SHOWERS TO THE AREA...OTHERWISE THE REST OF
THE WEEK SHOULD BE DRY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. HOWEVER...
SPOTTERS ARE ENCOURAGED TO REPORT ANY SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

In the hours before

Local storm report, Jan 21, 11:37 AM PST, 36 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1137 AM PST SAT JAN 21 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1130 AM     NON-TSTM WND GST PAHRUMP                 36.21N 115.99W
01/21/2012  E70 MPH          NYE                NV   TRAINED SPOTTER

            SPOTTER ON THE SOUTH SIDE OF PAHRUMP WIND GUSTING 60 TO
            70 MPH. VISIBILITY LESS THAN 0NE-HALF MILE IN BLOWING
            DUST.

&&

DMAKER
Local storm report, Jan 21, 11:42 AM PST, 31 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1142 AM PST SAT JAN 21 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1030 AM     NON-TSTM WND DMG 2 ENE GREEN VALLEY      36.07N 115.04W
01/21/2012                   CLARK              NV   BROADCAST MEDIA

            HIGH WINDS BLEW OUT A SKYLIGHT WINDOW IN THE GALLERIA
            MALL IN HENDERSON. THE EVENT TIME IS AN ESTIMATE.

&&

STACHELSKI
Local storm report, Jan 21, 11:48 AM PST, 25 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1148 AM PST SAT JAN 21 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0957 AM     TSTM WND GST     W TONOPAH RANGE (KBJN)  37.62N 116.26W
01/21/2012  M48.00 MPH       NYE                NV   ASOS

            THE KBJN ASOS ON THE NEVADA NATIONAL SECURITY SITE
            MEASURED A 48 MPH THUNDERSTORM WIND GUST IN THUNDERSNOW.
            VISIBILITY AS LOW AS 1/2 MILE WAS ALSO REPORTED IN
            THUNDERSNOW.

&&

STACHELSKI
Local storm report, Jan 21, 12:05 PM PST, 8 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1205 PM PST SAT JAN 21 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1150 AM     NON-TSTM WND GST BARSTOW-DAGGETT AP      34.85N 116.79W
01/21/2012  M58.00 MPH       SAN BERNARDINO     CA   ASOS

            BARSTOW-DAGGETT AIRPORT REPORTED A 58 MPH WIND GUST ALONG
            WITH VISIBILITY DOWN TO A 1/2 MILE IN BLOWING DUST.

&&

STACHELSKI
Local storm report, Jan 21, 12:06 PM PST, 7 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1206 PM PST SAT JAN 21 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1152 AM     NON-TSTM WND GST 3 W BARSTOW             34.88N 117.12W
01/21/2012  M55 MPH          SAN BERNARDINO     CA   TRAINED SPOTTER

            SPOTTER REPORTED 55 MPH GUST FROM THE WNW. SOME DEBRIS
            BEING BLOWN AROUND.

&&

DMAKER
Local storm report, Jan 21, 12:11 PM PST, 2 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1211 PM PST SAT JAN 21 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1147 AM     HAIL             3 WNW CENTENNIAL HILLS  36.30N 115.32W
01/21/2012  E0.25 INCH       CLARK              NV   PUBLIC

            PUBLIC REPORT OF PEA SIZE HAIL THROUGH THE NWS LAS VEGAS
            FACEBOOK PAGE NEAR FARM AND EGAN CREST ROAD IN THE
            PROVIDENCE AREA OF LAS VEGAS.

1207 PM     HAIL             3 SSW SUMMERLIN         36.17N 115.32W
01/21/2012  E0.25 INCH       CLARK              NV   TRAINED SPOTTER

            A SPOTTER REPORTED PEA SIZE HAIL NEAR ALTA AND TOWN
            CENTER IN SUMMERLIN.

&&

STACHELSKI

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 21, 3:42 PM PSTWinter Storm WatchVEFInyo12 hr

Nearby

Dust Storm Warnings in California, 2012Every dust storm warning in 2012

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.