High Wind in California, December 21, 2005

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE LAS VEGAS NV
330 PM PST WED DEC 21 2005

.SYNOPSIS...A PACIFIC STORM SYSTEM MOVING INTO THE PACIFIC NORTHWEST
WILL BRING A CHANCE OF RAIN AND SNOW TO THE SIERRA THIS EVENING
THROUGH THURSDAY AND HIGH CLOUDS WILL REMAIN OVER THE REMAINDER OF
THE REGION INTO FRIDAY. STRONG HIGH PRESSURE WILL DEVELOP OVER THE
WEEKEND...LEADING TO DRY WEATHER WITH TEMPERATURES ABOVE SEASONAL
NORMS.
&&

.UPDATE...ISSUED A WIND ADVISORY FOR THE EASTERN SLOPES OF THE
SIERRAS. SPOTTER IN ASPENDALE REPORTS 40 MPH OR GREATER WINDS
SUSTAINED AND GUSTS OVER 70 MPH. LOOKS LIKE A DOWNSLOPE EVENT
TAKING PLACE. NO OTHER REPORTS OR SENSORS DETECTING THIS. ADVISORY
IN IN EFFECT UNTIL 9 PM PST BUT MAY NEED EXTENDING.
&&

.PREV DISCUSSION...330 PM PST WED DEC 21 2005...SHORT TERM...TODAYS
RECORD HIGH TEMPERATURE OF 68 FOR LAS VEGAS REMAINS SAFE AS WE DID
NOT GET ENOUGH CLEARING TODAY AND INVERSION REMAINS STRONG. HIGHER
ELEVATIONS ABOVE THE INVERSION ARE QUITE WARM AS WELL. MAX
TEMPERATURES WILL BE APPROACH RECORD HIGHS THE NEXT FEW DAYS. MAV
GUIDANCE HAS HIGHS OF 72 THURSDAY AND FRIDAY FOR KLAS AND THINK THIS
IS TOO WARM AS INVERSIONS AND CLOUD COVER WILL DAMPEN HIGHS. THE
STORM SYSTEM ENTERING THE PACIFIC NORTHWEST HAS A SIGNIFICANT AMOUNT
OF MOISTURE WITH IT BUT MOST OF IT WILL BE DUMPED ON NORTHERN
CALIFORNIA NORTHWARDS. HAVE KEPT THE LIGHT SNOW AMOUNTS IN OUR
SOUTHERN SIERRA ZONE AND ACROSS THE NORTHERN PART OF OUR FORECAST
AREA IN CENTRAL NEVADA AS THE SOUTHERN TAIL END OF THE SYSTEM MOVES
THROUGH TONIGHT. SNOW LEVELS WILL BE IN THE 7500 TO 8000 FOOT RANGE
AND ONLY A FEW INCHES WILL OCCUR THAT HIGH.  &&

.LONG TERM...MODELS STILL BUILD A RESPECTABLE RIDGE OVER THE WEST
COAST REGION THIS WEEKEND. DIFFERENCES APPEAR IN THE MONDAY AND
TUESDAY TIME FRAME WITH THE NEXT MINOR WAVE MAKING AN APPEARANCE.
ECMWF HAS STAYED CONSISTENT AND BRING A WAVE KNOCKING DOWN THE
RIDGE MONDAY AND TUESDAY AND PASSES THROUGH NEVADA...WHILE THE GFS
SHOOTS IT OFF TO THE THE NORTHEAST WITH MOST MOISTURE GOING NORTH OF
OUR AREA. STUCK WITH THE CONSISTENT ECMWF AND PREVIOUS FORECAST.
KEPT THE LOW POPS OVER THE SIERRAS LATE MONDAY AND EARLY TUESDAY.
MODELS AGREE IN BRINGING THE RIDGE BACK ON NEXT WEDNESDAY.
&&

.AVIATION...TAF ADEQUATELY COVERS ALL SIGNIFICANT WEATHER EXPECTED
AT KLAS.
&&

.VEF WATCHES/WARNINGS/ADVISORIES...
.NV...NONE.
.AZ...NONE.
.CA...WIND ADVISORY FOR CA26 UNTIL 9PM PST.
&&

JACQUES

HTTP://WEATHER.GOV/LASVEGAS

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
331 PM PST WED DEC 21 2005

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

0330 PM     DOWNBURST        ASPENDELL               37.23N 118.58W
12/21/2005                   INYO               CA   CO-OP OBSERVER

            SPOTTER REPORTED 40 TO50 MPH GUSTS 79 MPH.

&&

CSCHLOTT