Flash Flood Warning 23, NWS Las Vegas, NV

000
WGUS75 KVEF 150539
FFSVEF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1035 PM PDT MON JUL 14 2008

CAC027-150630-
/O.CON.KVEF.FF.W.0023.000000T0000Z-080715T0630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
INYO CA-
1035 PM PDT MON JUL 14 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1130 PM PDT FOR
NORTHWESTERN INYO COUNTY...

AT 1027 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A THUNDERSTORM PRODUCING MODERATE RAIN OVER STATE ROUTE 168 
IN THE VICINITY OF WESTGARD PASS...WHICH IS EAST OF BIG PINE. RADAR 
HAS INDICATED THAT THIS STORM IS BEGINNING TO WEAKEN...HOWEVER 
RUNOFF FROM EARLIER HEAVY RAINFALL WILL STILL AFFECT THE AREA 
THROUGH 1130 PM. 

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY DEEPER
THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL ENOUGH
TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED ROADS MAKE
THE SMART CHOICE...TURN AROUND...DONT DROWN.

LAT...LON 3735 11828 3735 11805 3719 11803 3719 11826

$$

ASG

000
WGUS75 KVEF 150632
FFSVEF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1128 PM PDT MON JUL 14 2008

CAC027-150638-
/O.EXP.KVEF.FF.W.0023.000000T0000Z-080715T0630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
INYO CA-
1128 PM PDT MON JUL 14 2008

...THE FLASH FLOOD WARNING WILL EXPIRE AT 1130 PM FOR NORTHWESTERN 
INYO COUNTY...

AT 1125 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THAT THE THUNDERSTORM WHICH PRODUCED HEAVY RAINFALL IN THE VICINITY 
OF WESTGARD PASS ON HIGHWAY 168 HAS WEAKENED. SOME LIGHT TO MODERATE 
RAINFALL CAN STILL BE EXPECTED THROUGH MIDNIGHT...BUT THE THREAT OF 
FLASH FLOODING HAS ENDED. CALIFORNIA HIGHWAY PATROL HAS INDICATED NO 
PROBLEMS ALONG HIGHWAY 168 WEST OF BIG PINE.

LAT...LON 3735 11828 3735 11805 3719 11803 3719 11826

$$

ASG

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
901 PM PDT MON JUL 14 2008

.SYNOPSIS...A MOIST AND UNSTABLE AIR MASS WILL REMAIN OVER THE AREA
THROUGH TUESDAY RESULTING IN ISOLATED TO SCATTERED THUNDERSTORMS...
ESPECIALLY DURING THE AFTERNOON AND EVENING HOURS. SOME STORMS MAY
PRODUCE HEAVY RAINFALL. STORM COVERAGE WILL GRADUALLY DECREASE BY
THE MIDDLE TO LATTER PART OF THE WEEK AS DRIER SOUTHWEST FLOW
DEVELOPS.
&&

.UPDATE...THUNDERSTORM COVERAGE HAS DECREASED OVER MOST OF THE CWFA
THIS EVENING. TWO EXCEPTIONS REMAIN. ONE IS AN OUTFLOW BOUNDARY
WHICH HAS MOVED OUT OF UTAH INTO LINCOLN...CLARK AND MOHAVE
COUNTIES. A FEW STORMS ARE STILL REGENERATING ALONG THIS BOUNDARY
WITH A VERY SLOW DOWNWARD TREND IN BOTH COVERAGE AND INTENSITY. THE
SECOND EXCEPTION IS IN NORTHERN INYO COUNTY. A LITTLE EARLIER IN THE
EVENING...SATELLITE LOOPS SUGGESTED MULTIPLE BOUNDARY INTERACTIONS
TAKING PLACE OVER ESMERALDA COUNTY...WHICH LED TO SEVERAL PULSE
STORMS THERE. SINCE 7 PM...BOUNDARIES FROM THESE PULSE STORMS HAVE
PROPAGATED INTO NORTHERN INYO COUNTY...WHERE SCATTERED SHOWERS AND
STORMS ARE ONGOING AT THIS TIME. THESE STORMS ARE DEVELOPING FARTHER
SOUTH WITH TIME...WHICH COULD LEAD TO MORE RAIN IN INDEPENDENCE BY
10 PM. FORTUNATELY...HEAVY RAIN APPEARS UNLIKELY. WILL UPDATE BY 930
PM TO REDUCE POPS TO SLIGHT CHANCE IN ALL AREAS EXCEPT THE TWO
MENTIONED ABOVE. NO CHANGES ANTICIPATED BEYOND THE FIRST PERIOD.
&&

.PREV DISCUSSION...
255 PM PDT MON JUL 14 2008

.SHORT TERM...SAME OLD STORY WITH WEAKENING UPPER LOW NEAR THE AREA
COMBINING WITH A MOIST AND UNSTABLE AIR MASS TO PRODUCE ISOLATED TO
SCATTERED THUNDERSTORMS. SOME HEAVY RAIN HAS BEEN NOTED IN MOSTLY
CLARK COUNTY BUT ALL AREAS WILL STILL SEE A CHANCE OF THUNDERSTORMS
WITH HEAVY RAIN LATE THIS AFTERNOON AND EVENING. ANY CHANGE IN THE
PATTERN WILL BE VERY GRADUAL AS THE UPPER LOW OR DEFORMATION ZONE
CONTINUES TO WEAKEN AND SOUTHWEST FLOW GRADUALLY DEVELOPS OVER THE
AREA. EXPECT ISOLATED TO SCATTERED THUNDERSTORMS ALL AREAS AGAIN
TUESDAY AND THUNDERSTORM CHANCES ENDING ONLY IN SOME LOWER
ELEVATIONS OF THE FAR WESTERN PART OF THE FORECAST AREA WEDNESDAY.

.LONG TERM...THE LATEST MODEL GUIDANCE STILL INDICATING A SLOW
DRYING TREND FROM WEST TO EAST ACROSS THE CWA IN THE EXTENDED TERM.
LESS CLOUD COVER AND DIMINISHING MOISTURE WILL RESULT IN AN INCREASE
IN TEMPERATURES...PROBABLY BACK TO ABOVE NORMAL. THUNDERSTORM
CHANCES WILL BE MAINLY CONFINED TO THE EASTERN PORTIONS OF THE CWA
WITH THE BEST CHANCE OVER MOHAVE COUNTY INTO THE WEEKEND. MODELS IN
SOME DISAGREEMENT AT THE END OF THE PERIOD WITH THE PLACEMENT OF
SYNOPTIC WEATHER FEATURES WHICH IN TURN AFFECTS WHETHER THERE WILL
BE A RETURN OF MOISTURE TO THE AREA. DECIDED TO KEEP CHANCES LOW AT
THIS POINT AND WAIT FOR CONSISTENT MODEL TRENDS.

.AVIATION...FOR MCCARRAN...SKIES WILL REMAIN PARTLY CLOUDY ACROSS
THE LAS VEGAS VALLEY THROUGH THE REST OF THE AFTERNOON AND EARLY
EVENING. ISOLATED THUNDERSTORMS WILL BE POSSIBLE DURING THIS TIME
WITH THE MAIN THREATS...BRIEF HEAVY RAIN AND GUSTY WINDS. SCATTERED
THUNDERSTORMS WILL CONTINUE IN ALL APPROACH CORRIDORS THROUGH EARLY
THIS EVENING.

FOR THE REST OF SOUTHERN NEVADA...NORTHWEST ARIZONA...AND SOUTHEAST
CALIFORNIA...SCATTERED THUNDERSTORMS WILL CONTINUE INTO THE EVENING
HOURS AND PRODUCE PERIODS OF HEAVY RAIN AND GUSTY WINDS BEFORE
DIMINISHING OVERNIGHT. SKIES WILL BE PARTLY CLOUDY IN THE EVENING
FOLLOWED BY PARTIAL CLEARING.

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

MORGAN/HARRISON/SALMEN

HTTP://WEATHER.GOV/LASVEGAS

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LAS VEGAS NV
556 AM PDT MON JUL 14 2008

AZZ001>003-036-CAZ519>527-NVZ014>022-150000-
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-
556 AM PDT MON JUL 14 2008 /556 AM MST MON JUL 14 2008/

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

.DAY ONE...TODAY AND TONIGHT

A MOIST AND UNSTABLE AIR MASS WILL REMAIN OVER THE AREA TODAY FOR
SCATTERED AFTERNOON AND EVENING THUNDERSTORMS. IN ADDITION TO
DANGEROUS LIGHTNING AND POSSIBLY STRONG WINDS...LOCAL HEAVY RAIN
COULD PRODUCE ISOLATED FLASH FLOODING.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

SCATTERED THUNDERSTORMS CAN BE EXPECTED AGAIN TUESDAY FOLLOWED BY
DECREASING COVERAGE WEDNESDAY AND INTO THE WEEKEND AS DRIER SOUTHWEST
FLOW DEVELOPS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED TODAY. SPOTTERS ARE ALWAYS
ENCOURAGED TO REPORT ANY SIGNIFICANT WEATHER AS SOON AS IT IS
SAFE TO DO SO.