Flash Flood Warning 54, NWS Las Vegas, NV

826 
WGUS75 KVEF 260113
FFSVEF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
613 PM MST MON JUL 25 2011

AZC015-260215-
/O.CON.KVEF.FF.W.0054.000000T0000Z-110726T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MOHAVE AZ-
613 PM MST MON JUL 25 2011

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 715 PM MST FOR
CENTRAL MOHAVE COUNTY...

AT 600 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE AN AREA OF THUNDERSTORMS MOVING ACROSS NORTHEAST MOHAVE 
COUNTY. THESE THUNDERSTORMS ARE LIKELY PRODUCING VERY HEAVY RAIN.  
THE MAIN STORM WAS LOCATED NEAR THE BAR TEN RANCH...OR 51 MILES 
SOUTH OF COLORADO CITY. THE THUNDERSTORMS ARE SLOWLY MOVING TO THE 
NORTH.

LOCATIONS IMPACTED INCLUDE...BAR TEN RANCH...DIAMOND CREEK CAMPGROUND
AND GRAND CANYON SKYWALK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FLASH FLOODING IS EXPECTED IN WASHES...LOW WATER CROSSINGS AND ON
AREA ROADWAYS. FLASH FLOODING IS NATURES NUMBER ONE KILLER. TO ESCAPE
RISING WATER...MOVE TO HIGHER GROUND. NEVER TRY TO CROSS A FLOODED
ROADWAY OR WALK THROUGH FLOODWATERS. TURN AROUND...DONT DROWN!

REPORT FLOODING BY POSTING YOUR REPORT TO THE LAS VEGAS NATIONAL
WEATHER SERVICE FACEBOOK PAGE OR TWITTER #NWSVEGAS.

&&

LAT...LON 3609 11321 3608 11326 3610 11329 3605 11334
      3589 11329 3584 11332 3567 11332 3563 11351
      3593 11395 3628 11387 3655 11368 3668 11317

$$

JENSEN

648 
WGUS75 KVEF 260213
FFSVEF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
713 PM MST MON JUL 25 2011

AZC015-260220-
/O.EXP.KVEF.FF.W.0054.000000T0000Z-110726T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MOHAVE AZ-
713 PM MST MON JUL 25 2011

...THE FLASH FLOOD WARNING WILL EXPIRE AT 715 PM MST FOR CENTRAL
MOHAVE COUNTY...

THUNDERSTORMS HAVE DECREASED ACROSS THE AREA. ALTHOUGH LIGHT 
RAINFALL WILL LIKELY OCCUR INTO THE EVENING...HEAVY RAINFALL 
PRODUCING FLASH FLOOD IS NOT EXPECTED. THUS THE FLASH FLOOD WARNING 
WILL BE ALLOWED TO EXPIRE AS OF 715 PM MST.

HOWEVER...PEOPLE IN THE AREA SHOULD CONTINUE TO USE CAUTION AS 
FLOWING WATER IN NORMALLY DRY WASHES AND LOW LYING AREAS MAY OCCUR 
FOR SEVERAL HOURS. BE ESPECIALLY CAUTIOUS AFTER SUNSET AS WATER IS 
ESPECIALLY HARD TO SEE AT NIGHT.

LAT...LON 3609 11321 3608 11326 3610 11329 3605 11334
      3589 11329 3584 11332 3567 11332 3563 11351
      3593 11395 3628 11387 3655 11368 3668 11317

$$

JENSEN

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
228 PM PDT MON JUL 25 2011

.SYNOPSIS...CHANCES FOR SHOWERS AND THUNDERSTORMS WILL CONTINUE
THROUGH TONIGHT AS MONSOON MOISTURE REMAINS IN PLACE. DRIER AIR WILL
PUSH IN FROM THE WEST TOMORROW...LIMITING THUNDERSTORM CHANCES TO
AREAS NEAR AND EAST OF LAS VEGAS TOMORROW AND MOHAVE COUNTY
WEDNESDAY. MOISTURE WILL BEGIN TO PUSH BACK IN AS EARLY AS
THURSDAY...WITH THUNDERSTORM CHANCES SPREADING AREAWIDE BY SATURDAY.
HIGH TEMPERATURES WILL BE NEAR NORMAL THROUGH THE WEEK.
&&

.SHORT TERM...SATELLITE LOOP SHOWED CLOUDS FILLING IN OVER ALL BUT
ESMERALDA AND THE NORTHWEST THIRD OF INYO COUNTY. ISOLATED SHOWERS
AND THUNDERSTORMS WERE DEVELOPING SOUTH OF AN ARC ROUGHLY FROM FORT
IRWIN THROUGH THE SOUTHERN END OF THE NEVADA NATIONAL SECURITY SITE
TO ALAMO. MOST OF THESE SHOULD DIE WITH THE LOSS OF DAYTIME
HEATING...ALTHOUGH STORMS OVER MOHAVE COUNTY COULD GO ALL NIGHT
THANKS TO THE MESOSCALE CONVECTIVE VORTEX NEAR THE MARICOPA/LA
PAZ/YUMA TRIPLE POINT. MODELS SUGGEST THAT DRIER AIR SHOULD ALREADY
BE INVADING THE NORTHWEST EXTREMES OF OUR CWA...WHICH IS BORNE OUT
BY THE LACK OF CLOUDINESS NOTED ABOVE AS WELL AS WATER VAPOR
LOOP...WHICH SHOWS MOIST AIR NO LONGER MAKING NORTHWESTWARD PROGRESS
IN THIS AREA AS THE BATTLE SLOWLY TIPS IN FAVOR OF THE DRIER
SOUTHWEST FLOW. THIS SHOULD SCOUR THE MOISTURE OUT OF THE WESTERN
HALF OR SO OF THE CWA TOMORROW...AND LIMIT IT TO MOHAVE COUNTY
WEDNESDAY. HOWEVER...RECENT TRENDS SUGGEST THAT THE DRY PERIOD COULD
BE MUCH SHORTER THAN PREVIOUSLY THOUGHT...WITH MOISTURE POSSIBLY
SLOSHING BACK TO THE NORTHWEST AS EARLY AS THURSDAY. INCREASED POPS
A LITTLE BIT THEN...BUT WOULD PREFER TO WAIT ANOTHER DAY TO SEE IF
THE TREND CONTINUES BEFORE JUMPING ON IT.

.LONG TERM...FRIDAY THROUGH MONDAY...MODELS ARE FORECASTING A FAIRLY
MOIST ENVIRONMENT ACROSS MUCH OF THE CWA NEXT WEEKEND AS A SOUTHEAST
UPPER LEVEL FLOW PATTERN CONTINUES TO PRIME THE ATMOSPHERE. AT LEAST
ISOLATED...IF NOT SCATTERED THUNDERSTORM ACTIVITY IS POSSIBLE EACH
DAY BUT MORE WIDESPREAD COVERAGE WILL DEPEND ON SOME TYPE OF TRIGGER
OTHER THAN TOPOGRAPHY/DAYTIME HEATING TO PROVIDE A LIFTING
MECHANISM. WINDS OVERALL FOR LATE IN THE WEEK INTO EARLY THE
FOLLOWING WEEK ARE EXPECTED TO BE SOUTHERLY AND AT TIMES GUSTY
DURING THE AFTERNOON HOURS. TEMPERATURES TO REMAIN HOT BUT WILL
LIKELY STAY BELOW NORMAL DUE TO THE ABUNDANT MOISTURE.
&&

.AVIATION...FOR MCCARRAN...SOUTH TO SOUTHWEST WINDS 8-14 KTS WITH
GUSTS FROM 20-25KTS AND SCT-BKN CLOUD COVER AOA 10K-14K FEET THROUGH
THIS EVENING. WINDS COULD BECOME ERRATIC AND GUSTY IF THUNDERSTORM
OUTFLOW BOUNDARIES ARE ABLE TO MAKE IT INTO THE VALLEY. THE BEST
CHANCE FOR THUNDERSTORMS WILL BE IN THE MOUNTAINS AROUND THE VALLEY
THROUGH THIS EVENING...BUT IT LOOKS TOO STABLE OVERALL AT THIS TIME
FOR ANY THUNDER IN THE VALLEY. SHRA AND TSRA ARE EXPECTED IN THE
PEACH SPRINGS AND MORMON MESA APPROACH CORRIDORS.

FOR THE REST OF SOUTHERN NEVADA...NORTHWEST ARIZONA...AND SOUTHEAST
CALIFORNIA...SOUTHERLY WINDS WITH GUSTS OF 20-25 KTS ARE EXPECTED TO
CONTINUE WITH SCT-BKN CLOUDS AOA 10K-14K FEET THROUGH THIS EVENING.
THUNDERSTORMS COULD IMPACT MOHAVE...SOUTHERN AND NORTHEAST CLARK...
EASTERN LINCOLN AND SOUTHEASTERN SAN BERNARDINO COUNTIES BRINGING
THE POTENTIAL FOR GUSTY AND ERRATIC WINDS ALONG WITH REDUCED CIGS
AND VSBY IN AND NEAR THUNDERSTORM ACTIVITY.
&&

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

MORGAN/SALMEN

HTTP://WEATHER.GOV/LASVEGAS

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LAS VEGAS NV
408 AM PDT MON JUL 25 2011

AZZ001>003-036-CAZ519>527-NVZ014>022-260700-
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-
408 AM PDT MON JUL 25 2011 /408 AM MST MON JUL 25 2011/

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

.DAY ONE...TODAY AND TONIGHT

MONSOON MOISTURE WILL BRING CONSIDERABLE CLOUD COVER AND SOME
LIGHT SHOWERS TO THE AREA TODAY. THE AIR MASS IS SOMEWHAT STABLE
HOWEVER AND THUNDERSTORM ACTIVITY WILL BE LIMITED WITH JUST A
SLIGHT CHANCE OF STORMS GENERALLY EAST OF LAS VEGAS THIS AFTERNOON
AND EVENING.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

DRY AIR WILL BEGIN TO MOVE IN FROM THE WEST TUESDAY BUT THE
EASTERN PORTIONS OF THE AREA WILL STILL HAVE A CHANCE OF
THUNDERSTORMS. AS THE DRY AIR PUSHES EAST...THUNDERSTORMS CHANCES
WILL BE LIMITED TO EASTERN MOHAVE COUNTY WEDNESDAY WITH NO STORMS
EXPECTED ON THURSDAY. MOISTURE WILL BEGIN TO RETURN OVER THE
WEEKEND AS SOUTHEAST FLOW REDEVELOPS.

.SPOTTER INFORMATION STATEMENT...

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