High Wind Warning 7, NWS Las Vegas, NV

000 
WWUS75 KVEF 200041
NPWVEF

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
541 PM PDT TUE SEP 19 2006

CAZ519-520-200400-
/O.CON.KVEF.HW.W.0007.000000T0000Z-060920T1200Z/
EASTERN SIERRA SLOPES-OWENS VALLEY-
INCLUDING THE CITIES OF...ASPENDELL...MT WHITNEY...BISHOP...
INDEPENDENCE...LONE PINE
541 PM PDT TUE SEP 19 2006

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM PDT WEDNESDAY...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM PDT WEDNESDAY. 

SUSTAINED WINDS GREATER THAN 40 MPH WITH GUSTS TO OVER 70 MPH WILL
LIKELY DEVELOP THIS EVENING AND OVERNIGHT ALONG THE EAST SLOPES
OF THE SIERRA...AND POSSIBLY DOWN INTO AREAS OF THE WESTERN
FOOTHILLS OF THE OWENS VALLEY. THE MOST FAVORABLE TIME FOR THE
HIGHEST WINDS IS BETWEEN 7 PM AND MIDNIGHT AND GUSTS OVER 70 MPH
SHOULD GENERALLY BE CONFINED TO AREAS ABOVE 4500 FEET. STRONG
WEST WINDS OF 25 TO 35 MPH WITH GUSTS TO 45 MPH CAN BE EXPECTED
INTO THE CENTRAL PART OF THE OWENS VALLEY...INCLUDING HIGHWAY
395...WITH ENHANCED SPEEDS UP TO 55 MPH POSSIBLE AT THE MOUTH OF
WEST TO EAST ORIENTED CANYONS.

DRIVERS ALONG HIGHWAY 168 BETWEEN BISHOP AND ASPENDELL...ONION
VALLEY ROAD WEST OF INDEPENDENCE AND ALONG HIGHWAY 395 SHOULD BE
PREPARED FOR VERY STRONG WINDS WHICH CAN MAKE DRIVING VERY
DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES.

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.

$$

JGA

000 
WWUS75 KVEF 200403
NPWVEF

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
903 PM PDT TUE SEP 19 2006

CAZ519-520-200700-
/O.CON.KVEF.HW.W.0007.000000T0000Z-060920T1200Z/
EASTERN SIERRA SLOPES-OWENS VALLEY-
INCLUDING THE CITIES OF...ASPENDELL...MT WHITNEY...BISHOP...
INDEPENDENCE...LONE PINE
903 PM PDT TUE SEP 19 2006

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM PDT WEDNESDAY...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM PDT WEDNESDAY. 

A WEATHER SPOTTER IN ASPENDELL REPORTED WINDS GUSTING UP TO 50 MPH
AROUND 8 PM AND AUTOMATED WIND SENSORS HAVE RECORDED GUSTS UP TO
49 MPH IN THE FOOTHILLS WEST OF INDEPENDENCE. SUSTAINED WINDS OF
40 MPH WITH GUSTS TO OVER 70 MPH WILL REMAIN A THREAT DURING THE
LATE EVENING AND OVERNIGHT ALONG THE EAST SLOPES OF THE
SIERRA...AND POSSIBLY DOWN INTO AREAS OF THE WESTERN FOOTHILLS OF
THE OWENS VALLEY. THE MOST FAVORABLE TIME FOR THE HIGHEST WINDS
WILL BE UNTIL MIDNIGHT AND GUSTS OVER 70 MPH SHOULD GENERALLY BE
CONFINED TO AREAS ABOVE 4500 FEET. STRONG WEST WINDS OF 25 TO 35
MPH WITH GUSTS TO 45 MPH CAN BE EXPECTED INTO THE CENTRAL PART OF
THE OWENS VALLEY...INCLUDING HIGHWAY 395...WITH ENHANCED SPEEDS UP
TO 55 MPH POSSIBLE AT THE MOUTH OF WEST TO EAST ORIENTED CANYONS.

DRIVERS ALONG HIGHWAY 168 BETWEEN BISHOP AND ASPENDELL...ONION
VALLEY ROAD WEST OF INDEPENDENCE AND ALONG HIGHWAY 395 SHOULD BE
PREPARED FOR VERY STRONG WINDS WHICH CAN MAKE DRIVING VERY
DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES.

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.

$$

JGA

000 
WWUS75 KVEF 200655
NPWVEF

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
1155 PM PDT TUE SEP 19 2006

CAZ519-520-200800-
/O.CAN.KVEF.HW.W.0007.000000T0000Z-060920T1200Z/
EASTERN SIERRA SLOPES-OWENS VALLEY-
INCLUDING THE CITIES OF...ASPENDELL...MT WHITNEY...BISHOP...
INDEPENDENCE...LONE PINE
1155 PM PDT TUE SEP 19 2006

...HIGH WIND WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS CANCELLED THE HIGH
WIND WARNING. AUTOMATED WIND SENSORS SHOWED THAT DOWNSLOPE WINDS
WERE DECREASING IN THE WESTERN FOOTHILLS OF THE OWENS VALLEY
SINCE 10 PM AND HIGH WINDS ARE NO LONGER EXPECTED ALONG THE EAST
SLOPES OF THE SIERRA OR IN THE OWENS VALLEY THE REST OF THE NIGHT.

PEAK WIND GUSTS UP TO 51 MPH WERE RECORDED IN THE FOOTHILLS WEST
OF INDEPENDENCE BETWEEN 7 PM AND 8 PM AND A PEAK GUST OF 50 MPH
WAS REPORTED AT ASPENDELL DURING THE SAME PERIOD. NORTH WINDS OF
10 TO 20 MPH WILL SPREAD DOWN THE OWENS VALLEY OVERNIGHT.

$$

JGA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
1017 AM PDT TUE SEP 19 2006

.SYNOPSIS...A LOW PRESSURE SYSTEM WILL MOVE ACROSS NORTHERN NEVADA
TODAY AND TONIGHT RESULTING IN BREEZY CONDITIONS ACROSS MUCH OF THE
AREA. THIS WILL BE FOLLOWED BY COOLER TEMPERATURES WEDNESDAY THROUGH
FRIDAY UNDER A DRY NORTHWEST FLOW ALOFT. ANOTHER SYSTEM IS EXPECTED
TO MOVE INTO THE AREA THIS WEEKEND KEEPING TEMPERATURES BELOW
NORMAL.
&&

.UPDATE...SENT AN UPDATE TO THE FORECAST BASED ON LATEST SATELLITE
IMAGES SHOWING SMOKE DRIFTING INTO THE WEST AND NORTHWEST CWA FROM
FIRES IN SOUTHERN CALIFORNIA. THE SMOKE CAN BE SEEN VISUALLY ALONG
THE WESTERN EDGE OF THE LAS VEGAS VALLEY AND EXPECTED SOUTHERLY
WINDS TODAY SHOULD KEEP THE MAIN PLUME WEST AND NORTHWEST OF THE
VALLEY. LEFT THE TEMPERATURE FORECAST ALONE AS INCOMING STORM SYSTEM
SHOULD ALLOW FOR MORE EFFICIENT MIXING OF WARMER AIR ALOFT TO THE
SURFACE.

.PREVIOUS DISCUSSION...300 AM PDT...
.SHORT TERM...PACNW TROUGH CONTINUING TO DIG SOUTHEAST THIS MORNING
AND WILL BE CROSSING OVER NORTHERN NEVADA THIS AFTERNOON AND
OVERNIGHT. BOTH NAM/GFS IN AGREEMENT ON THIS FEATURE AND TIMING
DURING THE SHORT TERM...ALTHOUGH GFS REMAINS THE SLIGHTLY STRONGER
OF THE TWO. AS TROUGH SHIFTS EAST...INCREASE GRADIENTS TO FORM TODAY
WITH THE STRONGEST WINDS LOOKED FOR OVER THE NORTHERN PORTION OF THE
CWA. MAIN CONCERN WILL BE FIRE WEATHER...SEE DISCUSSION BELOW. AS
TROUGH SHIFTS EAST TONIGHT...NORTHWEST FLOW TO THEN BE OVER THE CWA
THROUGH THE REMAINDER OF THE SHORT TERM FOR COOL AND DRY CONDITIONS.
ANOTHER FEATURE OF NOTE HOWEVER AS DEPICTED BY THE MODELS AND AS
SEEN IN THE WATER VAPOR IS LOW CIRCULATION OFF THE SOUTHERN
CALIFORNIA COAST. THIS LOW IS PROGGED TO ENHANCE A NORTHWARD
MOISTURE PUSH ACROSS NORTHERN BAJA BY 12Z WEDNESDAY BUT AS NORTHERN
TROUGH SHIFTS EAST AND NORTHWEST FLOW ALOFT MOVES OVER THE
AREA...ANY MOISTURE ASSOCIATED WITH THIS LOW TO BE SHUNTED TO THE
SOUTH AND EAST OF SOUTHERN NEVADA AND SHOULD NOT BE OF ANY CONCERN.
UNDER THE NORTHWEST FLOW...TEMPS TO BE BELOW NORMAL BOTH WEDNESDAY
AND THURSDAY.

.LONG TERM...MODELS HAVE ALL SEEMED TO FAVOR A SHIFT IN THE LONG
TERM PATTERN FROM PREVIOUS RUNS SHOWING A RIDGE BUILDING IN OVER THE
WEEKEND TO A SECONDARY LOW DROPPING DOWN THE LEE OF THE ROCKIES AND
DIGGING THE TROF FROM EARLIER IN THE WEEK BACK TO THE SOUTHWEST OVER
THE CWA. CONDITIONS WILL REMAIN DRY AND COOLER THAN NORMAL THROUGH
THE EXTENDED. FRIDAY AND SATURDAY WILL SEE A SLIGHT INCREASE IN MID
LEVEL MOISTURE AS THE MAIN LOW PASSES TO OUR NORTHEAST LEADING TO
PERHAPS SOME LOW END PARTLY CLOUDY CONDITIONS OVER NORTHERN AND
EASTERN PORTIONS OF THE CWA. HAVE DROPPED TEMPERATURES A FEW DEGREES
FRIDAY-SUNDAY AS THE LOW PUSHES A SURFACE COLD FRONT THROUGH FRIDAY
AFTERNOON INTO SATURDAY.
&&

.FIRE WEATHER...SOUTHWEST WINDS AT THE SURFACE WILL BE INCREASING
TODAY AS THE TROUGH MOVES ACROSS NORTHERN NEVADA.  ALTHOUGH THE
TROUGH WILL BE WEAKER THAN THE LAST SYSTEM...WINDS ARE STILL
EXPECTED TO MEET THE GUST CRITERIA OF 35 MPH BY LATE AFTERNOON AND
INTO THE EARLY EVENING. THIS ALONG WITH LOW RELATIVE HUMIDITIES WILL
ALLOW FOR THE CONTINUATION OF THE RED FLAG CONDITIONS FOR TODAY. THE
FIRE WEATHER WATCH FOR NORTHWEST ARIZONA HAS BEEN CANCELLED. WINDS
WILL LIKELY INCREASE BY LATE AFTERNOON...BUT WIDESPREAD GUSTS TO
OVER 35 MPH ARE NOT EXPECTED AT THIS TIME. HOWEVER CONDITIONS SHOULD
BE MONITORED DURING THE DAY AS LOCAL GUSTS WILL SEEN AND MINIMUM
HUMIDITIES WILL BE BELOW 15 PERCENT THIS AFTERNOON.
&&

.AVIATION...ANOTHER STRONG TROUGH WILL PASS TO THE NORTH OF THE AREA
THIS AFTERNOON AND NIGHT. THIS WILL LEAD TO STRENGTHENING SOUTH TO
SOUTHWEST WINDS IN THE AFTERNOON FOR MOST CORRIDORS WITH WIND GUSTS
EXPECTED TO REACH 25-30 KTS. TAFS AND TWEBS ADEQUATELY DESCRIBE
EXPECTED WEATHER CONDITIONS FOR AREA TERMINALS. SEE TAFS FOR
KLAS...KVGT...KDRA...KBIH...KDAG...KEED FOR DETAILS.

AVIATION DISCUSSION NOT UPDATED FOR AMENDED TAFS.
&&

.VEF WATCHES/WARNINGS/ADVISORIES...
.NV...RED FLAG WARNING FOR FIRE ZONES 460 THROUGH 465
.AZ...NONE.
.CA...NONE.

SALMEN/JENSEN/MOSES

HTTP://WEATHER.GOV/LASVEGAS