Red Flag Warning 25, NWS Las Vegas, NV

000 
WWUS85 KVEF 060222
RFWVEF

RED FLAG WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
722 PM PDT WED SEP 5 2007

...RED FLAG WARNING HAS EXPIRED...

.THE RED FLAG WARNING IS NO LONGER IN EFFECT.

NVZ461-465-060330-
/O.EXP.KVEF.FW.W.0025.000000T0000Z-070906T0200Z/
LINCOLN COUNTY/ELY DISPATCH-
CLARK AND SW LINCOLN COUNTY DESERTS/LAS VEGAS DISPATCH-
722 PM PDT WED SEP 5 2007

...RED FLAG WARNING HAS EXPIRED...

THE RED FLAG WARNING IS NO LONGER IN EFFECT. 

WIND GUSTS HAVE STARTED TO SUBSIDE ACROSS CENTRAL AND NORTHEAST
CLARK COUNTY AND EASTERN LINCOLN COUNTY. IN ADDITION...RELATIVE
HUMIDITY VALUES WILL CONTINUE TO RISE.

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
330 AM PDT WED SEP 5 2007

.SYNOPSIS...AN AREA OF LOW PRESSURE WILL MOVE SLOWLY ACROSS NORTHERN
NEVADA TODAY BRINGING COOLER TEMPERATURES TO THE SOUTHERN GREAT
BASIN AND MOJAVE DESERT. DRIER AIR WILL CONTINUE TO SPREAD SOUTHEAST
ACROSS THE REGION. THE ONLY EXCEPTION IS MOHAVE COUNTY WHERE
ISOLATED SHOWERS AND THUNDERSTORMS ARE POSSIBLE TODAY AND AGAIN ON
THURSDAY AS THE REMNANTS OF HURRICANE HENRIETTE MOVE INTO SOUTHEAST
ARIZONA.

.SHORT TERM...CLOSED UPPER LOW OVER NORTHWEST NEVADA EARLY THIS
MORNING WILL SLOWLY WORK EAST TODAY AND LIE NEAR THE EXTREME
NORTHEAST CORNER OF THE STATE BY LATE AFTERNOON. DRIER PUSH OF AIR
YESTERDAY WAS MORE AGGRESSIVE THAN EXPECTED WITH MODELS SHOWING
PRECIPITABLE WATER VALUES LESS THAN A HALF INCH ACROSS SOUTHERN
NEVADA AND EASTERN CALIFORNIA TODAY. THE ONLY EXCEPTION TO THE
DRYING IS MOHAVE COUNTY WERE NAM/GFS BOTH SHOW A SHARP MOISTURE
GRADIENT ACROSS THE EASTERN HALF OF THE COUNTY THIS AFTERNOON. THIS
LOOKS GOOD AS CURRENT SURFACE DEWPOINT ANALYSIS INDICATES AN AXIS OF
HIGHER DEWPOINTS EXTENDING FROM YUMA TO ST. GEORGE. PRESENTLY
HURRICANE HENRIETTE IS OVER THE GULF OF CALIFORNIA NORTH OF LA PAZ.
THE OFFICIAL NHC FORECAST EXPECTS THE SECOND LANDFALL ALONG
MAINLAND MEXICO COAST WITHIN THE NEXT 12 HOURS. HENRIETTE WILL THEN
QUICKLY WEAKEN OVER THE ROUGH TERRAIN OF NORTHWEST MEXICO. AS THE
REMNANTS ACCELERATE NORTH TOWARD THE SOUTHWEST CONUS THE OFFICIAL
TRACK CONTINUES TO SHIFT FURTHER EAST TAKING THE BRUNT OF THE
MOISTURE INTO SOUTHEAST ARIZONA AND SOUTHERN NEW MEXICO. CANT RULE
OUT THE POSSIBLY OF ANOTHER GULF SURGE WHICH WOULD KEEP ENOUGH
MOISTURE ACROSS MOHAVE COUNTY FOR CONTINUED THREAT OF ISOLATED
THUNDERSTORMS THURSDAY. REMOVED THE MENTION OF THUNDERSTORMS FOR THE
SOUTHEAST ZONES ON FRIDAY AS AIR MASS UNDERGOES SOME SLIGHT DRYING
AND STABILIZATION. WINDS WILL BE GUSTY AGAIN TODAY WITH LIGHTER
WINDS ON THURSDAY AS TROUGH TO OUR NORTH ACCELERATES EAST ACROSS
WYOMING. TEMPERATURES WILL BE COOLER THE REST OF THE WEEK WITH
READING RUNNING ONLY A FEW DEGREES OF EARLY SEPTEMBER
NORMALS.

.LONG TERM...MODELS ARE IN GOOD AGREEMENT AT THE BEGINNING OF THE
PERIOD SATURDAY MORNING...AND THEN QUICKLY DIVERGE INTO TWO CAMPS BY
THE BEGINNING OF NEXT WEEK. HIGH PRESSURE IS PROGGED TO BUILD ALONG
140W BY ALL MODELS OVER THE WEEKEND...BUT NEXT WEEK THE GFS AND DGEX
DROP A RATHER DEEP LOW PRESSURE SYSTEM INTO THE PAC NW BY MONDAY
MORNING WHILE THE GEM AND ECMWF DEPICT A LESS AMPLIFIED PATTERN. THE
MREF MEAN SHOWS A 500MB PATTERN SIMILAR TO THE ECMWF AND A FURTHER
LOOK AT THE INDIVIDUAL ENSEMBLE MEMBERS REVEAL ONLY TWO
PERTURBATIONS SHOWING THE CLOSED 500MB SYSTEM OVER THE PAC NW BY
EARLY NEXT WEEK. THEREFORE THE EXTENDED PACKAGE IS HEAVILY WEIGHTED
TOWARDS THE ECMWF/GEM/MREF SOLUTIONS...WHICH PUTS THE FORECAST UNDER
DRY WEST TO NORTHWEST FLOW DURING THE ENTIRE PERIOD. NO SIGNIFICANT
WEATHER IS EXPECTED...WITH LIMITED COULD COVERAGE AND NO
PRECIPITATION IN THE FORECAST. TEMPERATURES SHOULD BE RIGHT AROUND
CLIMO NORMS...AND WITH LITTLE VARIATION IN HEIGHTS...EXPECTING
LITTLE DAY TO DAY TEMPERATURE CHANGE.
&&

.AVIATION...FOR MCCARRAN...WINDS AT KLAS WILL REMAIN OUT OF THE
SOUTH/SOUTHWEST TODAY WITH OCCASIONAL GUSTS TO 25 KTS.
THUNDERSTORMS WILL BE LIMITED TO THE SURROUNDING MOUNTAIN RANGES AND
IN THE PEACH SPRINGS AND MORMON MESA CORRIDORS.

FOR THE REST OF SOUTHERN NEVADA...NORTHWEST ARIZONA...AND SOUTHEAST
CALIFORNIA...THUNDERSTORM ACTIVITY WILL FORM OVER HIGHER TERRAIN OF
SOUTHEAST CALIFORNIA...SOUTHERN NEVADA...AND NORTHWEST ARIZONA IN
THE AFTERNOON AND INTO THE EVENING. SOUTHWEST WINDS BETWEEN 15 AND
25 KTS WITH HIGHER GUSTS ARE EXPECTED TO CONTINUE AS A WEATHER
DISTURBANCE MOVES NORTH OF THE AREA TODAY.
&&

.VEF WATCHES/WARNINGS/ADVISORIES...
.NV...NONE.
.AZ...NONE.
.CA...NONE.
&&

PIERCE/KENNEDY

HTTP://WEATHER.GOV/LASVEGAS

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LAS VEGAS NV
516 AM PDT WED SEP 5 2007

AZZ001>003-036-CAZ519>527-NVZ014>022-060700-
NORTHWEST PLATEAU-LOWER COLORADO RIVER VALLEY-NORTHWEST DESERTS-
LAKE MEAD NATIONAL RECREATION AREA-EASTERN SIERRA SLOPES-
OWENS VALLEY-WHITE MOUNTAINS OF INYO COUNTY-
DEATH VALLEY NATIONAL PARK-WESTERN MOJAVE DESERT-
EASTERN MOJAVE DESERT-MORONGO BASIN-CADIZ BASIN-
SAN BERNARDINO COUNTY-UPPER COLORADO RIVER VALLEY-
ESMERALDA AND CENTRAL NYE COUNTY-LINCOLN COUNTY-
NORTHEAST CLARK COUNTY-WESTERN CLARK AND SOUTHERN NYE COUNTY-
SHEEP RANGE-SPRING MOUNTAINS-LAS VEGAS VALLEY-
SOUTHERN CLARK COUNTY-
516 AM PDT WED SEP 5 2007 /516 AM MST WED SEP 5 2007/

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

.DAY ONE...TODAY AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.