High Wind Watch 13, NWS Las Vegas, NV

000 
WWUS75 KVEF 290335
NPWVEF

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
735 PM PST TUE NOV 28 2006

CAZ523>525-290445-
/O.CAN.KVEF.WI.Y.0033.000000T0000Z-061129T0400Z/
WESTERN MOJAVE DESERT-EASTERN MOJAVE DESERT-MORONGO BASIN-
INCLUDING THE CITIES OF...BARSTOW...DAGGETT...FT IRWIN...BAKER...
MOHAVE NATIONAL PRESERVE...MORONGO VALLEY...YUCCA VALLEY...
JOSHUA TREE...TWENTYNINE PALMS
735 PM PST TUE NOV 28 2006

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS CANCELLED THE WIND
ADVISORY. 

WINDS HAVE DECREASED TO BELOW 20 MPH ACROSS SAN BERNARDINO COUNTY
EARLY THIS EVENING. THOUGH WINDS ARE EXPECTED TO REMAIN BELOW
ADVISORY CRITERIA...OCCASIONAL GUSTS TO 35 MPH ARE STILL POSSIBLE
LATE THIS EVENING.

$$

AZZ002-036-CAZ527-NVZ021-291200-
/O.UPG.KVEF.HW.A.0013.061129T1400Z-061130T0200Z/
/O.NEW.KVEF.WI.Y.0034.061129T1400Z-061130T0200Z/
LAKE HAVASU AND FORT MOHAVE-LAKE MEAD NATIONAL RECREATION AREA-
SAN BERNARDINO COUNTY-UPPER COLORADO RIVER VALLEY-
INCLUDING THE CITIES OF...LAKE HAVASU...TOPOCK...NEEDLES...
LAUGHLIN...BULLHEAD CITY...HOOVER DAM
735 PM PST TUE NOV 28 2006 /835 PM MST TUE NOV 28 2006/

...WIND ADVISORY IN EFFECT FROM 6 AM PST /7 AM MST/ TO 6 PM PST
/7 PM MST/ WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 6 AM PST /7 AM MST/ TO 6 PM
PST /7 PM MST/ WEDNESDAY. THE HIGH WIND WATCH IS NO LONGER IN
EFFECT. 

A STRONG COLD FRONT IS EXPECTED TO MOVE SOUTH ACROSS THE AREA EARLY ON
WEDNESDAY BRINGING VERY STRONG AND GUSTY NORTHERLY WINDS TO THE
LAKE MEAD NATIONAL RECREATION AREA AND ALONG THE COLORADO RIVER
VALLEY. SUSTAINED WINDS OF 20 TO 35 MPH AND GUSTS TO 45 MPH ARE
POSSIBLE OVER A WIDE AREA. 

BOATERS SHOULD EXERCISE EXTREME CAUTION IF VENTURING OUT ONTO
AREA LAKES ON WEDNESDAY...OR CONSIDER POSTPONING THEIR ACTIVITIES
UNTIL AFTER THE WINDS SUBSIDE. AVOID THE OPEN WATER AND STAY
CLOSE TO SHORE OR IN PROTECTED COVES AND INLETS.

A WIND ADVISORY MEANS THAT WINDS OF 30 TO 39 MPH AND/OR FREQUENT
WIND GUSTS OF 40 MPH OR GREATER ARE EXPECTED. WINDS THIS STRONG
CAN MAKE BOATING HAZARDOUS. USE EXTRA CAUTION.

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
1006 AM PST TUE NOV 28 2006

.SYNOPSIS...A STRONG PACIFIC STORM OVER THE WESTERN UNITED STATES
WILL CONTINUE TO BRING ISOLATED SHOWERS TODAY TO MAINLY MOHAVE
COUNTY ARIZONA AND LINCOLN COUNTY NEVADA WITH BREEZY TO WINDY
CONDITIONS ELSEWHERE. COLDER AIR WILL ALSO BEGIN TO MOVE INTO THE
AREA WITH DAY TIME TEMPERATURES DROPPING TO BELOW NORMAL TODAY AND
THEN ANOTHER 5 TO 10 DEGREES COOLER ON WEDNESDAY. THIS COLDER AIR
WILL LIKELY BRING THE FIRST FREEZING TEMPERATURES TO THE LOWER
ELEVATIONS OF THE SOUTHERN GREAT BASIN AND MOJAVE DESERT REGION BY
THURSDAY MORNING.
&&

.UPDATE...NO UPDATE PLANNED THIS MORNING. CURRENT FORECAST APPEARS
ON TRACK FOR THE MOST PART BUT WILL NEED TO MONITOR AS THE STORM
SINKS SOUTHWARD TODAY. ONE ISSUE IS THE CURRENT WIND ADVISORY IN SAN
BERN COUNTY FOR TODAY. WINDS HAVE BACKED OFF THIS MORNING BUT I DO
EXPECT THAT THEY WILL INCREASE AGAIN BY LATE MORNING OR EARLY
AFTERNOON...SO WILL KEEP THAT GOING. ALSO WILL BE ISSUING A HIGH
WIND WATCH SHORTLY WHICH WILL BE VALID FOR WEDNESDAY ALONG THE
COLORADO RIVER VALLEY AND THE LAKE MEAD NRA. THIS WILL BE FOR STRONG
NORTH WINDS BEHIND A SURFACE FRONTAL PASSAGE. HOPE TO HAVE THIS
PRODUCT OUT BEFORE NOON.

.PREVIOUS DISCUSSION...259 AM SHORT TERM...A STRONG LOW PRESSURE
SYSTEM REMAINS OVER THE SOUTHERN GREAT BASIN AND MOHAVE DESERT TODAY
AND THEN SHIFTS OVER UTAH BY 12Z WEDNESDAY. WEAK PVA TO KEEP
ISOLATED LIGHT SHOWERS ACROSS MAINLY NORTHERN MOHAVE COUNTY ARIZONA
AND LINCOLN COUNTY TODAY AND INTO TONIGHT. HOWEVER MAIN PROBLEM WILL
CONTINUE TO BE WINDS ACROSS MUCH OF THE SOUTHERN PORTION OF THE CWA.
BEST GRADIENTS ACROSS SAN BERNARDINO COUNTY FOR TODAY AND WILL
CONTINUE WIND ADVISORY THIS AREA. ALTHOUGH LOCAL GUSTS...ESPECIALLY
OVER MOHAVE COUNTY MAY REACH ADVISORY CRITERIA...OVERALL MOST SPEEDS
ACROSS THE REMAINDER OF THE CWA SHOULD REMAIN BELOW THE NEEDED GUSTS
OF 40 MPH CRITERIA. WILL HIGHLIGHT BREEZY/WINDY HOWEVER. WITH THE
EXCEPTION OF THE PRECIPITATION OF THE EASTERN PORTION...DRY
CONDITIONS ELSEWHERE TODAY. AS THE TROUGH SHIFTS EAST
TONIGHT...STRONG NORTHERLY FLOW ALOFT TO SHIFT OVER THE AREA WITH
NORTH/SOUTH 100-120 PLUS KT JET...DEPENDING ON MODEL...OVER THE
AREA. THIS ALONG WITH SURFACE HIGH BUILDING BEHIND COLD
FRONT...FRONT EXPECTED THROUGH KLAS VALLEY AROUND 00Z WED...TO KICK
NORTH WINDS UP ACROSS MUCH OF THE SOUTHERN PORTION OF THE CWA ON
WEDNESDAY ALONG WITH STRONG COLD AIR ADVECTION. WILL LIKELY NEED
LAKE WIND ADVISORY OVER THE COLORADO RIVER VALLEY/LAKE MEAD NRA ON
WEDNESDAY...BUT MORE BROAD SCALE WIND ADVISORY MAY ALSO BE NEEDED
AND WILL MONITOR THROUGH THE DAY TODAY. NORTHERLY FLOW ALOFT TO
BECOME MORE NORTHWEST ON THURSDAY AS TROUGH CONTINUES EAST AND WEAK
SHORT WAVE RIDGE MOVES OVER THE AREA. SURFACE GRADIENTS TO BEGIN TO
RELAX FOR LESS WINDS ALSO. STRONG COLD AIR ADVECTION TO BEGIN
PUSHING OVER THE AREA TODAY LOWERING TEMPS TO BELOW NORMAL THEN
ANOTHER 5-10 DEGREES OF COOLING ON WEDNESDAY WILL RESULT IN POSSIBLE
RECORD LOW MAX TEMPS OVER THE KLAS VALLEY ON WEDNESDAY. THIS THEN
LEADS THE WAY TO THE FIRST FREEZING TEMPERATURES ACROSS THE LOWER
ELEVATIONS OF THE SOUTHERN PORTION OF THE CWA THURSDAY MORNING WITH
SOME AREAS EXPERIENCING MID 20S OR LOWER. DRY AND CONTINUED COOL TO
CONTINUE INTO THURSDAY UNDER THE WEAK SHORT WAVE RIDGE.

.LONG TERM...GFS/ECMWF/GEM ALL IN FAIRLY GOOD AGREEMENT OVER THE
EXTENDED WITH AN ERN PAC RIDGE SLOWLY AMPLIFYING AND DRIFTING
EASTWARD... KEEPING THE CWA IN DRY NW FLOW OVER THE WEEKEND. LATE
SUNDAY AND MONDAY RIDGING WILL FLATTEN OUT AS THE NEXT WX MAKER
ENTERS THE PAC. MODELS ARE PROGGING THIS ONE TO PASS NORTH OF THE
CWA. WHILE LOOKING SIMILAR TO CURRENT WX SYSTEM...THE SHARP ERN PAC
RIDGE LOOKS TO BE 10 DEG FARTHER EAST THAN CURRENT...WHICH WOULD
KEEP MOST WX OUT OF THE CWA. RIGHT NOW...LOOKS LIKE ONLY IMPACT WILL
BE INCREASED HIGH CLOUDS WITH ENSEMBLES INDICATING 0 POPS THROUGH
EARLY NEXT WEEK.  TEMPS WILL BEGIN TO RECOVER BACK TO NORMAL ON
FRIDAY...CLOSE TO CLIMO NORMS BY THE BEGINNING OF NEXT WEEK.
&&

.AVIATION...MOUNTAIN WAVE ACTIVITY STILL EVIDENT ACROSS THE
CWA...AND WILL LAST THROUGH THE AFTERNOON TODAY AS STRONG WESTERLY
WINDS PERSIST ALONG RIDGETOPS. 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...NONE.
.AZ...NONE.
.CA...WIND ADVISORY ZONE 523...524 AND 525 THROUGH 8 PM THIS EVENING.

SALMEN/JENSEN/KENNEDY

HTTP://WEATHER.GOV/LASVEGAS

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LAS VEGAS NV
1100 AM PST TUE NOV 28 2006

CAZ523-524-291000-
WESTERN MOJAVE DESERT-EASTERN MOJAVE DESERT-
1100 AM PST TUE NOV 28 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CALIFORNIA.

.DAY ONE...TODAY AND TONIGHT
A WIND ADVISORY CONTINUES OVER PORTIONS OF SAN BERNARDINO COUNTY
TODAY. THE WINDS ARE EXPECTED TO INCREASE AS THE DAY WEARS ON AND COULD
CREATE PROBLEMS FOR TRAVELERS ALONG INTERSTATE 15 AND 40. SEE
RNONPWVEF FOR FURTHER DETAILS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY
A STRONG SURFACE COLD FRONT WILL MOVE THROUGH THE AREA EARLY
WEDNESDAY BRINGING STRONG GUSTY WINDS TO MUCH OF SOUTHERN
CALIFORNIA. A VERY COLD AIRMASS WILL BEGIN SETTLING INTO THE
REGION BEHIND THE FRONT WITH MUCH BELOW NORMAL TEMPERATURES
EXPECTED. TEMPERATURES THURSDAY AND FRIDAY MORNING WILL FALL BELOW
FREEZING FOR THE FIRST TIME THIS SEASON IN THE LOWER ELEVATIONS.

.SPOTTER INFORMATION STATEMENT...
NO SPOTTER ACTIVATION EXPECTED TODAY OR TONIGHT BUT SPOTTERS ARE
ENCOURAGED TO REPORT ANY SIGNIFICANT WIND EVENTS ACCORDING TO
STANDARD OPERATING PROCEDURES.

AZZ001-003-CAZ522-525-526-NVZ016-017-020-022-291000-
NORTHWEST PLATEAU-NORTHWEST DESERTS-DEATH VALLEY NATIONAL PARK-
MORONGO BASIN-CADIZ BASIN-NORTHEAST CLARK COUNTY-
WESTERN CLARK AND SOUTHERN NYE COUNTY-LAS VEGAS VALLEY-
SOUTHERN CLARK COUNTY-
1100 AM PST TUE NOV 28 2006 /1200 PM MST TUE NOV 28 2006/

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

.DAY ONE...TODAY AND TONIGHT
NO HAZARDOUS WEATHER EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY
A STRONG SURFACE COLD FRONT WILL MOVE THROUGH THE AREA EARLY
WEDNESDAY BRINGING STRONG GUSTY WINDS TO MUCH OF SOUTHERN
NEVADA...NORTHWEST ARIZONA AND SOUTHERN CALIFORNIA. A VERY COLD
AIRMASS WILL BEGIN SETTLING INTO THE REGION BEHIND THE FRONT WITH
MUCH BELOW NORMAL TEMPERATURES EXPECTED AREA WIDE BY WEDNESDAY
AFTERNOON. OVERNIGHT TEMPERATURES WILL FALL BELOW FREEZING FOR
THE FIRST TIME THIS SEASON IN THE LOWER ELEVATIONS BOTH THURSDAY
AND FRIDAY MORNING.

.SPOTTER INFORMATION STATEMENT...
NO SPOTTER ACTIVATION EXPECTED TODAY OR TONIGHT.

AZZ002-036-CAZ527-NVZ021-291000-
LOWER COLORADO RIVER VALLEY-LAKE MEAD NATIONAL RECREATION AREA-
SAN BERNARDINO COUNTY-UPPER COLORADO RIVER VALLEY-
1100 AM PST TUE NOV 28 2006 /1200 PM MST TUE NOV 28 2006/

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

.DAY ONE...TODAY AND TONIGHT
NO HAZARDOUS WEATHER EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY
A STRONG SURFACE COLD FRONT WILL MOVE THROUGH THE AREA ON
WEDNESDAY BRINGING VERY STRONG GUSTY WINDS TO THE LAKE MEAD
RECREATION AREA AND ALSO ALONG THE COLORADO RIVER VALLEY. SEE
RNONPWVEF FOR DETAILS ON A HIGH WIND WATCH FOR THIS REGION. A
COLD AIRMASS WILL SETTLE INTO THE REGION BEHIND THE FRONT
WEDNESDAY NIGHT AND THURSDAY WITH MUCH BELOW NORMAL TEMPERATURES
EXPECTED. OVERNIGHT TEMPERATURES WILL FALL TO NEAR FREEZING FOR
THE FIRST TIME THIS SEASON THURSDAY AND FRIDAY MORNING.

.SPOTTER INFORMATION STATEMENT...
NO SPOTTER ACTIVATION EXPECTED TODAY OR TONIGHT.