Red Flag Warning 19, NWS Las Vegas, NV

000 
WWUS85 KVEF 031939
RFWVEF

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
1239 PM PDT SAT OCT 3 2009

AZZ102-CAZ228-032045-
/O.CAN.KVEF.FW.A.0013.091004T1800Z-091005T0300Z/
NORTHWEST DESERTS/NORTHWEST PLATEAU-MOJAVE DESERT-
1239 PM PDT SAT OCT 3 2009 /1239 PM MST SAT OCT 3 2009/

...FIRE WEATHER WATCH IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS CANCELLED THE FIRE
WEATHER WATCH FOR WESTERN SAN BERNARDINO COUNTY AND NORTHWEST
ARIZONA. 

IT WILL BE WINDY SUNDAY...HOWEVER WITH COOLER TEMPERATURES AND
RISING DEWPOINTS...RELATIVE HUMIDITY READINGS WILL NOT FALL BELOW
15 PERCENT. WITH CRITICAL CONDITIONS NOT EXPECTED TO BE MEET THE
FIRE WEATHER WATCH HAS BEEN CANCELLED.

$$

NVZ460>462-040300-
/O.CON.KVEF.FW.W.0019.000000T0000Z-091004T0300Z/
ESMERALDA AND NYE COUNTY DESERTS/CNC DISPATCH-
LINCOLN COUNTY/ELY DISPATCH-NYE COUNTY DESERTS/LAS VEGAS DISPATCH-
1239 PM PDT SAT OCT 3 2009

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS
EVENING...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING.

STRONG AND GUSTY SOUTH TO SOUTHWEST WINDS WILL CONTINUE 
ACROSS ESMERALDA...NYE AND NORTHERN LINCOLN COUNTIES THIS
AFTERNOON AND INTO THE EARLY EVENING. THESE WINDS ALONG WITH
RELATIVE HUMIDITY VALUES OF LESS THAN 15 PERCENT AND VERY DRY
FUELS WILL LIKELY CREATE CRITICAL FIRE BEHAVIOR TO ANY FIRE
STARTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING OR ARE IMMINENT. A COMBINATION OF STRONG
WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE
EXTREME FIRE GROWTH POTENTIAL.

&&

$$

PIERCE

000 
WWUS85 KVEF 040239
RFWVEF

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
739 PM PDT SAT OCT 3 2009

NVZ460>462-040345-
/O.EXP.KVEF.FW.W.0019.000000T0000Z-091004T0300Z/
ESMERALDA AND NYE COUNTY DESERTS/CNC DISPATCH-
LINCOLN COUNTY/ELY DISPATCH-NYE COUNTY DESERTS/LAS VEGAS DISPATCH-
739 PM PDT SAT OCT 3 2009

...RED FLAG WARNING WILL EXPIRE AT 8 PM PDT THIS EVENING...

THE RED FLAG WARNING FOR MUCH OF ESMERALDA...NYE AND LINCOLN
COUNTIES WILL EXPIRE AT 8 PM.

RELATIVE HUMIDITIES HAD RECOVERED ABOVE 15 PERCENT IN MOST OF THE
AREA...AND WILL CONTINUE TO RISE OVERNIGHT. THUS...THE RED FLAG
WARNING WILL BE ALLOWED TO EXPIRE.

$$

MORGAN

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
330 AM PDT SAT OCT 3 2009

.SYNOPSIS...A STRONG LOW PRESSURE SYSTEM MOVING SOUTH FROM THE
PACIFIC NORTHWEST WILL BE OVER NORTHERN NEVADA BY SUNDAY. THIS WILL
CAUSE INCREASED WINDS ACROSS CENTRAL NEVADA THIS AFTERNOON AND THEN
ACROSS  EASTERN CALIFORNIA...SOUTHERN NEVADA AND NORTHWEST ARIZONA
ON SUNDAY. MOISTURE WITH THIS SYSTEM WILL BE LIMITED WITH ANY
SHOWERS MOST LIKELY OCCURRING OVER THE HIGHER TERRAIN OF NORTHERN
INYO AND SOUTH CENTRAL NEVADA. MUCH COOLER TEMPERATURES WILL RETURN
TO THE REGION SUNDAY AND CONTINUE INTO THE MIDDLE OF NEXT WEEK. &&

.SHORT TERM...STRONG UPPER LOW WITH CENTER OVER THE NORTHERN
WASHINGTON COAST AS OF 09Z SATURDAY TO DROP SOUTH AND BE OVER
NORTHERN CALIFORNIA BY 00Z SUNDAY AND THEN OVER NORTHERN NEVADA BY
00Z MONDAY BEFORE EJECTING EAST ON MONDAY. HOWEVER A NORTHEAST TO
SOUTHWEST TROUGH AXIS TO REMAIN OVER THE CWA INTO TUESDAY MORNING.
AS THIS SYSTEM DROPS INTO NORTHERN NEVADA AND THEN EAST...LIMITED
MOISTURE WILL PRODUCE A FEW LIGHT SHOWERS ACROSS MAINLY THE CENTRAL
NEVADA MOUNTAINS AND POSSIBLY THE SOUTHERN SIERRA...HOWEVER THE
MAIN WEATHER FEATURES FROM THIS SYSTEM WILL BE GUSTY WINDS AND
COOLER TEMPERATURES. INCREASED PRESSURE GRADIENTS BOTH SURFACE AND
ALOFT TO FORM AS THE SYSTEM MOVES INTO THE AREA WITH GUSTS TO OVER
35 MPH EXPECTED ACROSS THE NORTHERN PORTION OF THE CWA THIS
AFTERNOON AND ALSO WESTERN SAN BERNARDINO COUNTY. THIS HAS PROMPTED
FIRE WEATHER CONCERNS FOR THE NORTH AND A WIND ADVISORY FOR WESTERN
SAN BERNARDINO FOR TODAY. IN ADDITION...THE LATEST LOCAL HIGH
RESOLUTION MODELS ARE INDICATING A GOOD POTENTIAL FOR DOWNSLOPE
WINDS FORMING ACROSS THE SOUTHERN SIERRA AND ALSO THE SPRING
MOUNTAINS BY LATE THIS EVENING INTO EARLY SUNDAY. AS THE SYSTEM
DROPS FURTHER SOUTH SUNDAY...THE MAIN BAND OF WINDS WILL THEN SHIFT
INTO SAN BERNARDINO/MOHAVE COUNTY. 700MB WINDS PROGGED TO REACH INTO
THE LOWER 50KT RANGE WHICH SHOULD RESULT IN GUSTS ON SUNDAY OVER 40
MPH ACROSS THE SOUTH AND WILL LIKELY PROMPT WIND ADVISORIES IN LATER
FORECAST PACKAGES. AS THE SYSTEM SHIFTS EAST ON MONDAY...WINDS TO
DIMINISH ACROSS THE ENTIRE AREA. WITH THE SYSTEM SHIFTING THROUGH
THE CWA...GOOD MIXING/SOUTHWEST FLOW WILL ALLOW FOR TEMPERATURES TO
BE NEAR NORMAL TODAY...BUT THEN DROP ON SUNDAY AND INTO MONDAY WITH
READINGS BEING GENERALLY 10-15 DEGREES BELOW NORMAL BOTH DAYS.

.LONG TERM...LOW PRESSURE WILL BE THE DOMINANT FEATURE THROUGHOUT
MOST OF THE EXTENDED AS RIDGING OVER THE EASTERN PACIFIC SLOWLY
MIGRATES EASTWARD AS A LONGWAVE UPPER LOW AFFECTS THE WESTERN HALF
OF THE COUNTRY UNTIL THE END OF NEXT WEEK. THIS WILL KEEP
TEMPERATURES BELOW NORMAL THROUGH THE PERIOD. MODELS DO NOT INDICATE
ANY SIGNIFICANT TAP OF MOISTURE AS THE LOW SITS JUST TO OUR WEST AND
MOVES ACROSS THE FORECAST AREA. HOWEVER...THE EC CONTINUES TO
GENERATE PRECIP ON THURSDAY/FRIDAY OVER THE SOUTHERN AND EASTERN
PORTIONS OF THE FORECAST AREA...BUT WITH MINIMAL SUPPORT FROM ANY
GEFS MEMBERS...KEPT POPS ON THE LOW SIDE OVERALL. BY THE BEGINNING
OF NEXT WEEKEND...HIGH PRESSURE WILL BEGIN TO BUILD BACK ACROSS THE
AREA...BUT NORTHERLY SURFACE WINDS SHOULD KEEP TEMPERATURES FROM
REBOUNDING BACK TO NORMAL QUICKLY.
&&

.AVIATION...FOR MCCARRAN...A STORM SYSTEM WILL APPROACH THE GREAT
BASIN TODAY...RESULTING IN INCREASED HIGH CLOUDS AND GUSTY
SOUTHWEST WINDS BEGINNING THIS AFTERNOON...BECOMING STRONGER IN
THE EVENING AND SUNDAY...WITH GUSTS UP TO 35 KTS EXPECTED SUNDAY
AFTERNOON.

FOR THE REST OF SOUTHERN NEVADA...NORTHWEST ARIZONA...AND SOUTHEAST
CALIFORNIA...A STRONG AREA OF LOW PRESSURE APPROACHING THE AREA WILL
RESULT IN INCREASED WINDS AREAWIDE THIS WEEKEND...WITH THE STRONGEST
WINDS EXPECTED ON SUNDAY...WITH GUSTS UP TO 45KTS ACROSS VALLEY
LOCATIONS AND STRONGER AT HIGHER ELEVATIONS. WINDS LEEWARD OF AREA
MOUNTAINS COULD BECOME ESPECIALLY STRONG AND MECHANICAL TURBULENCE
IS ANTICIPATED. THERE IS ALSO THE POTENTIAL FOR SOME MOUNTAIN
SHOWERS IN THE FORM OF LOW ELEVATION RAIN AND HIGH ELEVATION SNOW
SUNDAY.
&&

.FIRE WEATHER...A STRONG PACIFIC STORM MOVING INTO NORTHERN
CALIFORNIA AND THE NORTHERN GREAT BASIN BY THIS AFTERNOON WILL ALLOW
FOR INCREASED WINDS ACROSS THE DISTRICT TODAY. THE STRONGEST WINDS
WILL BE OVER THE NORTHERN PORTION OF THE AREA LATE THIS AFTERNOON
AND INTO THE EVENING WITH GUSTS TO 35 MPH OR GREATER. THESE WINDS
COMBINED WITH RELATIVE HUMIDITY VALUES OF LESS THAN 15 PERCENT AND
VERY DRY FUELS WILL ALLOW FOR THE POTENTIAL OF CRITICAL FIRE
BEHAVIOR AND HAS PROMPTED THE UPGRADING OF THE PREVIOUS FIRE WEATHER
WATCH TO A WARNING OVER THE NORTHERN SECTIONS. LOCAL GUSTY WINDS ARE
ALSO EXPECTED ACROSS THE SOUTHERN PORTION THIS AFTERNOON...
ESPECIALLY WESTERN SAN BERNARDINO COUNTY...BUT THE DURATION OF THE
WINDS SHOULD BE BELOW THE NECESSARY CRITERIA FOR FIRE WEATHER
CONCERNS. HOWEVER AS THE LOW DROPS SOUTH TONIGHT AND SUNDAY...THE
STRONGEST WINDS WILL BE ACROSS SAN BERNARDINO AND MOHAVE COUNTY ON
SUNDAY WITH GUSTS ONCE AGAIN ABOVE 35 MPH. RELATIVE HUMIDITY VALUES
WILL GENERALLY BE AROUND 15 PERCENT OR LESS...ACROSS SAN BERNARDINO
COUNTY BUT MAY BE SLIGHTLY HIGHER ACROSS MOHAVE COUNTY. HOWEVER DUE
TO THE COMBINATION OF THE WINDS AND RELATIVE HUMIDITIES FOR SUNDAY
WILL ISSUE A FIRE WEATHER WATCH FOR THESE AREAS.
&&

.VEF WATCHES/WARNINGS/ADVISORIES...
NV...HIGH WIND WATCH FROM THIS EVENING THROUGH SUNDAY MORNING FOR
     NVZ018-019.
     RED FLAG WARNING FROM 11 AM THIS MORNING TO 8 PM PDT THIS
     EVENING FOR NVZ460>462.
AZ...FIRE WEATHER WATCH FROM SUNDAY MORNING THROUGH SUNDAY EVENING
     FOR AZZ102.
CA...HIGH WIND WATCH FROM THIS EVENING THROUGH SUNDAY MORNING FOR
     CAZ519-520.
     FIRE WEATHER WATCH FROM SUNDAY MORNING THROUGH SUNDAY EVENING
     FOR CAZ228.
     WIND ADVISORY FROM 3 PM THIS AFTERNOON TO 8 PM PDT THIS EVENING
     FOR CAZ523.
&&

JENSEN/KENNEDY

HTTP://WEATHER.GOV/LASVEGAS

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LAS VEGAS NV
454 AM PDT FRI OCT 2 2009

AZZ001>003-036-CAZ519>527-NVZ014>022-030000-
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-
454 AM PDT FRI OCT 2 2009 /454 AM MST FRI OCT 2 2009/

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...SATURDAY THROUGH THURSDAY

A STRONG LOW PRESSURE SYSTEM WILL CAUSE INCREASED SOUTHWEST WINDS
ACROSS MUCH OF THE AREA SATURDAY AND SUNDAY. THESE WINDS MAY
RESULT IN POSSIBLE WIND ADVISORIES...CREATE FIRE WEATHER CONCERNS
AND ALSO GENERATE POSSIBLE DOWNSLOPE WINDS ON THE EAST SLOPES OF
THE SOUTHERN SIERRA AS WELL AS THE EAST SLOPES OF THE SPRING
MOUNTAINS. THE STORM WILL MOVE EAST OF THE AREA ON MONDAY WHICH
WILL ALLOW FOR DECREASED WINDS.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME FOR THE PERIOD
TUESDAY THROUGH THURSDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED. HOWEVER...WEATHER SPOTTERS
ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING
TO STANDARD OPERATING PROCEDURES.