Flash Flood Warning 163, NWS Las Vegas, NV

458 
WGUS75 KVEF 251940
FFSVEF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1240 PM MST SUN AUG 25 2013

AZC015-252215-
/O.CON.KVEF.FF.W.0163.000000T0000Z-130825T2215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MOHAVE AZ-
1240 PM MST SUN AUG 25 2013

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 315 PM MST FOR WEST
CENTRAL MOHAVE COUNTY...

AT 1230 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A THUNDERSTORM PRODUCING VERY HEAVY RAIN.  THIS STORM WAS
LOCATED NEAR TEMPLE BAR CAMPGROUND...OR 30 MILES EAST OF BOULDER 
CITY...MOVING NORTH AT 20 MPH. 

AN AUTOMATED STATION ON THE TEMPLE BAR ACCESS ROAD NEAR MILE POST 8 
HAS REPORTED NEARLY FOUR TENTHS OF AN INCH OF RAIN IN THE PAST 30 
MINUTES. AN ESTIMATED ONE INCH HAS FALLEN NEAR TEMPLE BAR MARINA.

LOCATIONS IMPACTED INCLUDE...
TEMPLE BAR ACCESS ROAD.

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!

CAMPERS AND HIKERS SHOULD BE ALERT TO THE POSSIBILITY OF RAPIDLY 
RISING WATER AND BE PREPARED TO MOVE QUICKLY TO HIGHER GROUND IF 
FLASH FLOODING IS OBSERVED.

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

&&

LAT...LON 3582 11456 3606 11452 3607 11438 3604 11428
      3595 11422 3582 11423 3569 11436 3571 11454

$$

BP

416 
WGUS75 KVEF 252134
FFSVEF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
234 PM MST SUN AUG 25 2013

AZC015-252142-
/O.CAN.KVEF.FF.W.0163.000000T0000Z-130825T2215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MOHAVE AZ-
234 PM MST SUN AUG 25 2013

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR WEST CENTRAL MOHAVE
COUNTY...

THE THREAT OF HEAVY RAIN AND FLASH FLOODING HAS ENDED AROUND TEMPLE 
BAR. THE FLASH FLOOD WARNING WILL BE CANCELLED.

LIGHT TO MODERATE RAIN WILL IS POSSIBLE AROUND TEMPLE BAR AND 
ALONG THE ACCESS ROAD THROUGH THE AFTERNOON.  

LAT...LON 3582 11456 3606 11452 3607 11438 3604 11428
      3595 11422 3582 11423 3569 11436 3571 11454

$$

BP

AREA FORECAST DISCUSSION UPDATE
NATIONAL WEATHER SERVICE LAS VEGAS NV
848 AM PDT SUN AUG 25 2013

.SYNOPSIS...MOISTURE FROM TROPICAL DEPRESSION IVO IS EXPECTED TO
PUSH NORTH ACROSS MUCH OF THE AREA THROUGH MONDAY RESULTING IN A
SIGNIFICANT RAIN EVENT OVER PORTIONS OF THE SOUTHERN GREAT BASIN AND
MOJAVE DESERT. THE HIGHEST THREAT OF HEAVY RAIN WILL BE OVER
MOHAVE...CLARK...LINCOLN AND EASTERN SAN BERNARDINO COUNTIES.
MOISTURE IS FORECAST TO REMAIN OVER THE EASTERN HALF OF THE FORECAST
AREA FOR MUCH OF THE WEEK RESULTING IN A CHANCE OF SHOWERS AND
THUNDERSTORMS EACH DAY. TEMPERATURES WILL REMAIN SEVERAL DEGREES
BELOW NORMAL THROUGH MONDAY AND THEN INCREASE TO AROUND NORMAL BY
MID WEEK.
&&

.UPDATE...MOISTURE IS INCREASING THIS MORNING. RADAR SHOWED LIGHT TO
MODERATE SHOWERS SPREADING NORTH INTO SOUTHERN MOHAVE COUNTY AND A
COUPLE OF GAGES INDICATED FOUR HUNDREDTHS OF AN INCH AS OF 840 AM.
12Z MODELS STILL SHOW PLENTY OF INSTABILITY OVER THE CENTRAL AND
EASTERN PART OF THE FORECAST AREA BUT THE DEEPEST MOISTURE LOOKS TO
BE DELAYED UNTIL TONIGHT. HOWEVER WITH THE JET OVERHEAD AND PLENTY
OF INSTABILITY OUR CURRENT POPS AND THE FLASH FLOOD WATCH STILL LOOK
PRETTY GOOD FOR TODAY. THE ONLY THING THAT NEEDED UPDATING WAS SKY
COVER TO DELAY THE INCREASE WESTWARD THIS MORNING. -HARRISON-
&&

.PREV DISCUSSION...
350 AM PDT SUN AUG 25 2013

.SHORT TERM...MODELS CONTINUE TO SHOW INCREASED MOISTURE
ADVECTION OUT OF THE SOUTH TODAY THROUGH MONDAY WITH PWATS ON
AVERAGE NEAR 1.5 INCHES BY MONDAY AFTERNOON...POTENTIALLY 2 INCHES
ACROSS THE SOUTHERN EDGE OF THE FORECAST AREA. THE ONLY CHANGE TO
THE FORECAST WAS TO DECREASE SHOWER/THUNDERSTORM CHANCES FOR THIS
MORNING AS TIMING BEEN PUSHED BACK SLIGHTLY BUT OUTSIDE OF THAT THE
INHERITED FORECAST WAS RIGHT ON TARGET. WITH A LARGE PERCENTAGE OF
THE AREA STARTING OFF WITH MINIMAL CLOUD COVERAGE TODAY...
THUNDERSTORMS MAY START SLIGHTLY SOONER AS WE REACH THE CONVECTIVE
TEMPERATURES EARLIER. ONCE WE GET GOING...EXCELLENT DYNAMICS AND
PLENTY OF MOISTURE WILL LEAD TO WIDESPREAD RAIN AND EMBEDDED
THUNDERSTORMS TODAY. IN ADDITION TO THE INCREASED FLASH FLOOD
THREAT...SOME STORMS MAY BE SEVERE AS WE SAW YESTERDAY WITH ENOUGH
SHEAR ALOFT AND A WBZ TEMP NEAR 13KFT. MONDAY IS EXPECTED TO HAVE
VERY SIMILAR CONDITIONS...OUTSIDE OF THE INFLUENCE OF ANY MCVS LEFT
OVER FROM TODAYS ACTIVITY.

.LONG TERM...TUESDAY THROUGH SATURDAY...THE MOST NOTEWORTHY CHANGE
TO THE FORECAST DURING THIS PERIOD WAS TO SPREAD 20-30 POP VALUES
ACROSS ALL OF INYO...ESMERALDA AND CENTRAL NYE COUNTIES ON TUESDAY.
THIS IS DUE TO GOOD MODEL AGREEMENT THAT THE RESIDUAL MOISTURE FROM
TROPICAL DEPRESSION IVO WILL NOW BE PULLED UP A LITTLE FARTHER WEST
THAN PREVIOUSLY INDICATED MONDAY INTO TUESDAY. MEANWHILE...FAIRLY
DEEP MOISTURE WILL REMAIN IN PLACE ACROSS THE REST OF THE AREA.
DRIER SOUTHWEST FLOW IS FORECAST TO SPREAD ACROSS NORTHERN INYO
COUNTY AND WEST CENTRAL NEVADA WEDNESDAY BUT MOIST AND UNSTABLE
CONDITIONS WILL PERSIST ELSEWHERE INTO NEXT WEEKEND. IN FACT...AN
ADDITIONAL LARGE PUSH OF MOISTURE IS NOW INDICATED BY BOTH THE GFS
AND ECMWF LATE THURSDAY INTO FRIDAY ASSOCIATED WITH AN INVERTED
TROUGH LIFTING FROM NORTHWEST MEXICO TOWARD SOUTHERN NEVADA. ITS
ORIGIN WILL BE FROM A TROPICAL SYSTEM EXPECTED TO SPIN UP IN THE
NEXT 48 HOURS IN THE GULF OF MEXICO WEST OF THE YUCATAN PENINSULA. A
FAIRLY STRONG CLOSED LOW IS THEN FORECAST TO MOVE ACROSS THE PACIFIC
NORTHWEST SATURDAY BUT IT SHOULD NOT HAVE MUCH SCOURING EFFECT ON
OUR AREA AND MOIST AND UNSTABLE CONDITIONS WILL REMAIN THROUGH NEXT
WEEKEND WITH TEMPERATURES GENERALLY NEAR NORMAL.
&&

.AVIATION...FOR MCCARRAN...A CLEAR SKY EARLY THIS MORNING WILL GIVE
WAY TO INCREASING CLOUDS WITH SHOWERS AND THUNDERSTORMS LIKELY
DEVELOPING AFTER 21Z. PERIODS OF MODERATE TO HEAVY RAIN POSSIBLE
THROUGHOUT THE AFTERNOON AND TONIGHT. CIGS MAY DROP TO AS LOW AS
4-5KFT DURING PERIODS OF MORE INTENSE PRECIPITATION.

FOR THE REST OF SOUTHERN NEVADA...NORTHWEST ARIZONA...AND SOUTHEAST
CALIFORNIA...SHOWERS AND THUNDERSTORMS WILL SPREAD FROM SOUTH TO
NORTH OVER MUCH OF THE REGION EXCEPT NORTHERN INYO COUNTY AND WEST
CENTRAL NEVADA...WITH PERIODS OF MODERATE TO HEAVY RAIN POSSIBLE
FROM LATE THIS MORNING THROUGH TONIGHT. CIGS MAY DROP TO AS LOW AS
4-5KFT DURING PERIODS OF MORE INTENSE PRECIPITATION.
&&

.VEF WATCHES/WARNINGS/ADVISORIES...
NV...FLASH FLOOD WATCH THROUGH MONDAY EVENING FOR NVZ015>022.
AZ...FLASH FLOOD WATCH THROUGH MONDAY EVENING FOR AZZ001>003-036.
CA...FLASH FLOOD WATCH THROUGH MONDAY EVENING FOR CAZ523>527.
&&

KENNEDY/ADAIR

FOR MORE FORECAST INFORMATION...SEE US ON OUR WEBPAGE:

HTTP://WEATHER.GOV/LASVEGAS OR FOLLOW US ON FACEBOOK AND TWITTER

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LAS VEGAS NV
441 AM PDT SUN AUG 25 2013

AZZ001>003-036-CAZ522>527-NVZ015>022-260100-
NORTHWEST PLATEAU-LOWER COLORADO RIVER VALLEY-NORTHWEST DESERTS-
LAKE MEAD NATIONAL RECREATION AREA-DEATH VALLEY NATIONAL PARK-
WESTERN MOJAVE DESERT-EASTERN MOJAVE DESERT-MORONGO BASIN-
CADIZ BASIN-SAN BERNARDINO COUNTY-UPPER COLORADO RIVER VALLEY-
LINCOLN COUNTY-NORTHEAST CLARK COUNTY-
WESTERN CLARK AND SOUTHERN NYE COUNTY-SHEEP RANGE-
SPRING MOUNTAINS-LAS VEGAS VALLEY-SOUTHERN CLARK COUNTY-
441 AM PDT SUN AUG 25 2013 /441 AM MST SUN AUG 25 2013/

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

.DAY ONE...TODAY AND TONIGHT

TROPICAL DEPRESSION IVO MOVING UP THE WEST COAST OF SOUTHERN BAJA
WILL PUSH SIGNIFICANT MOISTURE INTO THE TRI-STATE REGION TODAY. THIS
WILL LEAD TO NUMEROUS SHOWERS AND THUNDERSTORMS...SOME WITH HEAVY
RAIN. THIS WILL INCREASE THE POTENTIAL FOR EXTENSIVE FLASH FLOODING
TODAY AND TONIGHT ACROSS CLARK...SOUTHERN NYE...MOHAVE AND SAN
BERNARDINO COUNTIES WHERE A FLASH FLOOD WATCH REMAINS IN EFFECT.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

THE TROPICAL DEPRESSION IS EXPECTED TO DISSIPATE NEAR THE BAJA SPUR...
BUT MOST OF THE MOISTURE WITH IT WILL BE PULLED ACROSS THE REGION
MONDAY. NUMEROUS SHOWERS AND THUNDERSTORMS WILL PERSIST KEEPING AN
ELEVATED THREAT OF FLASH FLOODING THROUGH MONDAY EVENING.  ONCE
IN PLACE...MOIST AND UNSTABLE AIR WILL LINGER TUESDAY THROUGH SATURDAY
FOR A CHANCE OF AFTERNOON AND EVENING THUNDERSTORMS EACH DAY WITH
LOCALIZED HEAVY RAIN SHOWERS AND FLASH FLOODING POSSIBLE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED TODAY AND MONDAY IN CLARK...
SOUTHERN NYE...MOHAVE AND EASTERN SAN BERNARDINO COUNTIES.
MEANWHILE...SPOTTERS ARE ENCOURAGED TO REPORT ANY SIGNIFICANT
WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

CAZ519>521-NVZ014-260100-
EASTERN SIERRA SLOPES-OWENS VALLEY-WHITE MOUNTAINS OF INYO COUNTY-
ESMERALDA AND CENTRAL NYE COUNTY-
441 AM PDT SUN AUG 25 2013

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

.DAY ONE...TODAY AND TONIGHT

ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS CAN BE EXPECTED
ACROSS SOUTHEAST INYO AND CENTRAL NYE COUNTIES THIS AFTERNOON AND
TONIGHT. LOCALIZED HEAVY RAIN AND FLASH FLOODING WILL BE A
POSSIBILITY.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS CAN BE EXPECTED
OVER A SIMILAR AREA MONDAY THEN COVERAGE WILL EXPAND ACROSS NORTHERN
INYO AND ESMERALDA COUNTIES TUESDAY AS RESIDUAL MOISTURE FROM
TROPICAL DEPRESSION IVO MOVES OVERHEAD. ISOLATED TO SCATTERED
AFTERNOON AND EVENING THUNDERSTORMS CAN BE EXPECTED EACH DAY THROUGH
SATURDAY.

.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.