Flash Flood Warning 42, NWS Las Vegas, NV

786 
WGUS75 KVEF 272304
FFSVEF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
404 PM PDT SUN JUL 27 2014

CAC071-NVC003-280030-
/O.CON.KVEF.FF.W.0042.000000T0000Z-140728T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN BERNARDINO CA-CLARK NV-
404 PM PDT SUN JUL 27 2014

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 530 PM PDT FOR WEST
CENTRAL CLARK AND NORTH CENTRAL SAN BERNARDINO COUNTIES...

AT 354 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE THUNDERSTORMS PRODUCING MODERATE TO HEAVY RAIN OVER THE 
WARNED AREA. IN ADDITION...A STRONG STORM WITH A HISTORY OF 
PRODUCING VERY HEAVY RAIN IS APPROACHING THE WARNED AREA FROM THE 
EAST AND COULD ADD TO RAINFALL ALREADY ON THE GROUND.

LOCATIONS IMPACTED INCLUDE...SANDY VALLEY...KINGSTON ROAD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FLASH FLOODING IS EXPECTED IN WASHES...LOW WATER CROSSINGS AND ON
ROADS. TO ESCAPE RISING WATER...MOVE TO HIGHER GROUND. NEVER TRY TO
CROSS A FLOODED ROAD OR ENTER A FLOOD CHANNEL. TURN AROUND...DONT
DROWN!

REPORT FLOODING TO THE LAS VEGAS NATIONAL WEATHER SERVICE VIA
FACEBOOK OR TWITTER.

&&

LAT...LON 3574 11579 3581 11564 3588 11560 3587 11552
      3578 11547 3550 11554 3556 11574

$$

JS

571 
WGUS55 KVEF 280027
FFWVEF
CAC071-NVC003-280230-
/O.EXT.KVEF.FF.W.0042.000000T0000Z-140728T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
527 PM PDT SUN JUL 27 2014

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  NORTH CENTRAL SAN BERNARDINO COUNTY IN SOUTHERN CALIFORNIA...
  WEST CENTRAL CLARK COUNTY IN SOUTHERN NEVADA...

* UNTIL 730 PM PDT

* AT 514 PM PDT...DOPPLER RADAR CONTINUED TO SHOW MODERATE TO HEAVY  
  RAIN SOUTHWEST OF SANDY VALLEY. THE WARNING FOR THIS AREA IS       
  EXTENDED THROUGH 730 PM DUE TO THE EXCESSIVE AMOUNT OF RAIN THAT   
  HAS FALLEN OVER KINGSTON ROAD AND INTO THE SANDY VALLEY AREA.

* LOCATIONS IMPACTED INCLUDE...
  SANDY VALLEY...KINGSTON ROAD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FLASH FLOODING IS EXPECTED IN WASHES...LOW WATER CROSSINGS AND ON
ROADS. TO ESCAPE RISING WATER...MOVE TO HIGHER GROUND. NEVER TRY TO
CROSS A FLOODED ROAD OR ENTER A FLOOD CHANNEL. TURN AROUND...DONT
DROWN!

REPORT FLOODING TO THE LAS VEGAS NATIONAL WEATHER SERVICE VIA
FACEBOOK OR TWITTER.

&&

LAT...LON 3574 11579 3581 11564 3588 11560 3587 11552
      3578 11547 3550 11554 3556 11574

$$

JS

578 
WGUS75 KVEF 280122 RRA
FFSVEF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
622 PM PDT SUN JUL 27 2014

CAC071-NVC003-280230-
/O.CON.KVEF.FF.W.0042.000000T0000Z-140728T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN BERNARDINO CA-CLARK NV-
622 PM PDT SUN JUL 27 2014

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 PM PDT FOR WEST
CENTRAL CLARK AND NORTH CENTRAL SAN BERNARDINO COUNTIES...

AT 613 PM PDT...THUNDERSTORMS OVER THE WARNED AREA HAVE DISSIPATED 
AND RAIN IS ENDING HOWEVER...WATER LEVELS WILL REMAIN ELEVATED IN 
AREA WASHING AND WATER MAY STILL BE COVERING KINGSTON ROAD IN PLACES.

LOCATIONS IMPACTED INCLUDE...
SANDY VALLEY AND KINGSTON ROAD.

LAT...LON 3574 11579 3581 11564 3588 11560 3587 11552
      3578 11547 3550 11554 3556 11574

$$

JS

907 
WGUS75 KVEF 280222
FFSVEF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
722 PM PDT SUN JUL 27 2014

CAC071-NVC003-280231-
/O.EXP.KVEF.FF.W.0042.000000T0000Z-140728T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN BERNARDINO CA-CLARK NV-
722 PM PDT SUN JUL 27 2014

...THE FLASH FLOOD WARNING WILL EXPIRE AT 730 PM PDT FOR WEST CENTRAL
CLARK AND NORTH CENTRAL SAN BERNARDINO COUNTIES...

A FEW SHOWERS MAY STILL ROLL ACROSS THE WARNED AREA BUT FLASH 
FLOODING IS NO LONGER EXPECTED. THE WARNING WILL BE ALLOWED TO 
EXPIRE ON TIME.

LAT...LON 3574 11579 3581 11564 3588 11560 3587 11552
      3578 11547 3550 11554 3556 11574

$$

JS

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
746 AM PDT SUN JUL 27 2014

.SYNOPSIS...MONSOON MOISTURE WILL BRING A CHANCE OF THUNDERSTORMS TO
MUCH OF THE AREA THROUGH THE FIRST HALF OF THE WEEK. TEMPERATURES
WILL GENERALLY BE NEAR NORMAL.
&&

.UPDATE...MAIN CONCERN THIS MORNING IS WALL OF DUST RAISED BY
DECAYING MESOSCALE CONVECTIVE SYSTEM IN FAR SOUTHERN ARIZONA. DUST
HAS ALREADY REACHED LAKE HAVASU CITY AND NEEDLES...BUT CANNOT
MONITOR PROGRESS VIA SATELLITE DUE TO EXTENSIVE CLOUD COVER. ADDED
BLOWING DUST INTO WEATHER GRIDS OVER SOUTHERN MOHAVE...EASTERN SAN
BERNARDINO...AND EXTREME SOUTHERN CLARK COUNTIES FOR TODAY. WILL
CONTINUE TO MONITOR AND MAY NEED TO ADJUST THE AREAL COVERAGE LATER.
&&

.PREV DISCUSSION...
225 AM PDT SUN JUL 27 2014

.SHORT TERM...THROUGH TUESDAY NIGHT...
OUTFLOW BOUNDARY FROM DECAYING MCS OVER SOUTH CENTRAL ARIZONA
LEADING TO CONVECTIVE INITIATION OVER FAR SOUTHEAST MOHAVE COUNTY
EARLY THIS MORNING. EXPECT MOST OF THE ACTION TO STAY CONFINED TO
AREAS SOUTH OF I-40 AND EAST OF THE COLORADO RIVER VALLEY EARLY THIS
MORNING. THERE WILL BE PLENTY OF DEBRIS CLOUDINESS LEFT BEHIND FROM
DECAYING MCS SPREADING AS FAR NORTH AS SOUTHERN NEVADA. THE DEBRIS
CLOUDS WILL HAVE AN AFFECT ON CONVECTIVE INITIATION, EITHER
INHIBITING OR DELAYING THE ONSET UNTIL LATER IN THE DAY. LATER
SHIFTS WILL BE EYING AREAS WHICH EXPERIENCE PLENTY OF SUNSHINE OR
AREAS OF DIFFERENTLY HEATING FOR STORM DEVELOPMENT. FOR MONDAY,
DECIDED TO BUMP UP POPS SLIGHTLY HIGHER. WATER VAPOR DOES SHOW A
CYCLONIC TWIST OFF THE SRN BAJA PENINSULA. GFS HAS BEEN CONSISTENT
PAST TWO DAYS BRINGING THIS PVD ANOMALY NORTHWARD OVER THE AREA
MONDAY AFTERNOON. THIS FEATURE MAY HELP TRIGGER MORE STORMS AS
MODELS INDICATE PLENTY OF MOISTURE AND INSTABILITY STILL AROUND. FOR
TUESDAY, MODELS AGREE THERE SHOULD BE A SLIGHT DOWNWARD TREND IN
COVERAGE. TEMPERATURES IN THE COMING DAYS WILL BE VERY DEPENDENT ON
CLOUD COVER AND STORMS. OUTSIDE OF GUSTY WINDS FROM THUNDERSTORMS
WINDS WILL GENERALLY LESS THAN 10 MPH.

.LONG TERM...(WEDNESDAY THROUGH SUNDAY)...

AN UPPER LEVEL HIGH PRESSURE RIDGE WILL REMAIN ANCHORED IN PLACE
OVER THE SW US FOR MOST OF THE PERIOD. THIS WILL KEEP THE AREA
RELATIVELY MOIST AND ACTIVE WITH AFTERNOON CONVECTION FOR MOST OF
THE WEEK. ALTHOUGH MONDAY IS LIKELY TO BE THE MOST ACTIVE DAY. POPS
AND CHANCES FOR THUNDERSTORMS WILL BE SOMEWHAT LOWER THROUGH THE
WEEK AS THE SOUTHERLY FLOW IS SOMEWHAT WEAKER. AFTERNOON SHOWER AND
THUNDERSTORMS WILL BE MOST LIKELY TO OCCUR OVER MOHAVE COUNTY AND
HIGHER TERRAIN IN CLARK AND EASTERN SAN BERNARDINO COUNTY.

AN AFOREMENTIONED UPPER LEVEL TROF WILL SINK SOUTH OVER THE PACIFIC
COAST NEXT WEEKEND. THIS MAY BRING ABOUT SOME STRONGER MID-LEVEL
FORCING FOR CONVECTIVE ACTIVITY. WE WILL NEED TO SEE HOW THINGS
DEVELOP OVER THE COURSE OF THE WEEK.

.AVIATION...FOR MCCARRAN...DEBRIS CLOUDS FROM DECAYING THUNDERSTORMS
OVER ARIZONA THIS MORNING WILL SPREAD NORTHWARD OVER SOUTHERN
NEVADA. THE ADDITIONAL CLOUD MAY HELP INHIBIT OR DELAY THE ONSET OF
CONVECTION AROUND THE LAS VEGAS VALLEY TODAY. NOT CONFIDENT TO
MENTION IN 12Z TAF BUT A HI-RES MODEL SHOWS THE POTENTIAL OF AN
OUTFLOW BOUNDARY MOVING INTO THE VALLEY FROM THE EAST BETWEEN
02Z-03Z THIS EVENING. THUNDERSTORM CHANCES IN THE MORMON
MESA...PEACH SPRINGS...AND DAGGETT CORRIDORS. ANY THUNDERSTORMS
COULD PRODUCE LOCALLY HEAVY RAIN AND LOW CEILINGS ALONG WITH ERRATIC
GUSTY WINDS.

FOR THE REST OF SOUTHERN NEVADA...NORTHWEST ARIZONA...AND SOUTHEAST
CALIFORNIA...DEBRIS CLOUDS OVER NORTHWEST ARIZONA THIS MORNING COULD
INHIBIT OR AT LEAST DELAY THE ONSET OF THUNDERSTORMS TODAY.
THUNDERSTORMS WILL PRODUCE LOCALLY HEAVY RAIN AND LOW CEILINGS ALONG
WITH ERRATIC GUSTY WINDS.

.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.
&&

MORGAN/PIERCE/LERICOS

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

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