Red Flag Warning 25, NWS Las Vegas, NV

000 
WWUS85 KVEF 030329
RFWVEF

RED FLAG WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
729 PM PST SAT DEC 2 2006

AZZ101-CAZ229-NVZ466-030430-
/O.EXP.KVEF.FW.W.0025.000000T0000Z-061203T0300Z/
LAKE MEAD NRA/COLORADO RIVER-AZ SIDE-LOWER COLORADO RIVER VALLEY-
LAKE MEAD NRA/COLORADO RIVER-NV SIDE-
729 PM PST SAT DEC 2 2006 /829 PM MST SAT DEC 2 2006/

...RED FLAG WARNING HAS EXPIRED...

THE RED FLAG WARNING IS NO LONGER IN EFFECT FOR THE LAKE MEAD
NATIONAL RECREATION AREA AND THE LOWER COLORADO RIVER VALLEY.
AUTOMATED WEATHER STATIONS SHOWED RELATIVE HUMIDITY VALUES WERE
IN THE UPPER TEENS AND LOWER TWENTIES WITH SUSTAINED WINDS OF 15
TO 20 MPH AND GUSTS GENERALLY LESS THAN 30 MPH. WIND SPEEDS WILL
REMAIN SIMILAR MUCH OF THE NIGHT WHILE RELATIVE HUMIDITY VALUES
RECOVER TO BETWEEN 20 AND 30 PERCENT.

$$

JGA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
255 AM PST SAT DEC 2 2006

.SYNOPSIS...DRY NORTHERLY FLOW WILL CONTINUE OVER THE SOUTHERN GREAT
BASIN AND MOJAVE DESERT THROUGH MONDAY WITH TEMPERATURES REMAINING
BELOW NORMAL. A WEAK STORM SYSTEM DIVING SOUTH THROUGH UTAH TODAY
WILL RESULT IN LOCALLY BREEZY TO WINDY CONDITIONS...AND A LAKE WIND
ADVISORY IS IN EFFECT FOR THE LAKE MEAD AND LAKE MOHAVE AREAS.
&&

.SHORT TERM...A DRY AIR MASS WILL REMAIN IN PLACE THROUGH MONDAY
UNDER A GENERALLY NORTH TO NORTHWEST FLOW. SHORTWAVE TROUGH DIVING
SOUTH THROUGH UTAH TODAY WILL RESULT IN AN INCREASED GRADIENT
SURFACE AND ALOFT AND LOCALLY BREEZY NORTH WINDS ALONG WITH A
REINFORCEMENT OF COOL AIR. CHANNELING OF THE WIND ALONG PORTIONS OF
THE COLORADO RIVER WILL RESULT IN WINDS STRONG ENOUGH TO JUSTIFY THE
LAKE WIND ADVISORY CURRENTLY IN EFFECT FOR TODAY. THE NORTHERLY FLOW
WILL RELAX SUNDAY AND MONDAY BUT TEMPERATURES WILL REMAIN A LITTLE
BELOW NORMAL.

.LONG TERM...RIDGING CONTINUES BUILDING TUESDAY AND MOVING OVER THE
INTERMOUNTAIN REGION WEDNESDAY AND THURSDAY. MODELS IN AGREEMENT
WITH THIS TILL THEN. FRIDAY SEES SOME DIFFERENCES WITH THE ECMWF AND
GFS SHOWING SOUTHWEST FLOW OVER AREA AS ANOTHER TROUGH APPROACHES.
THE GEM KEEPS A STRONG ALMOST LOOKING LIKE AN OMEGA HIGH OVERHEAD.
GFS PROGS TROUGH TO FILL CONSIDERABLY AS IT RIDES OVER RIDGE
SATURDAY IN ITS PASSAGE. THIS FAR OUT I LITTLE CONFIDENCE IN
DETAILED MODEL SOLUTIONS. KEPT THE SILENT SUB 10 POPS IN TO REFLECT
THIS. OTHERWISE MADE MINOR CHANGES IN FORECAST WHICH WILL KEEP MANY
VALLEY LOCATIONS COOLER THAN HIGHER ELEVATIONS AS RIDGE INDUCED
SUBSIDENCE INVERSIONS WILL BE AROUND TO TRAP COOLER AIR.
&&

.AVIATION...THE TAFS AND TWEBS ADEQUATELY DESCRIBE EXPECTED WEATHER
CONDITIONS FOR AREA TERMINALS. SEE TAFS FOR KLAS...KVGT...KDRA...
KBIH...KDAG...KEED FOR DETAILS.
&&

.VEF WATCHES/WARNINGS/ADVISORIES...
.NV...LAKE WIND ADVISORY ZONE 21 10AM - 7PM PST SATURDAY.
.AZ...LAKE WIND ADVISORY ZONES 2 AND 36 11AM - 8PM MST SATURDAY.
.CA...LAKE WIND ADVISORY ZONE 527 10AM - 7PM PST SATURDAY.

HARRISON/JACQUES

HTTP://WEATHER.GOV/LASVEGAS