Severe Thunderstorm Warning 91, NWS Las Vegas, NV

376 
WWUS55 KVEF 090322
SVSVEF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
822 PM PDT FRI JUL 8 2011

CAC071-090345-
/O.CON.KVEF.SV.W.0091.000000T0000Z-110709T0345Z/
SAN BERNARDINO CA-
822 PM PDT FRI JUL 8 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM PDT
FOR CENTRAL SAN BERNARDINO COUNTY...

AT 814 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER
SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM 12 MILES NORTH OF LUDLOW TO
8 MILES SOUTH OF LUDLOW...OR ALONG A LINE EXTENDING FROM 27 MILES
SOUTH OF BAKER TO 32 MILES NORTH OF TWENTYNINE PALMS. THESE STORMS
WERE NEARLY STATIONARY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM IS CAPABLE OF PRODUCING DAMAGING WINDS WHICH CAN BRING
DOWN TREES AND POWER LINES AND CAUSE SIGNIFICANT BLOWING DUST AND
DEBRIS. IN ADDITION...HAIL AND LIGHTNING ARE LIKELY. LIGHTNING CAN
KILL! TAKE COVER IN A SUBSTANTIAL SHELTER AND STAY AWAY FROM WINDOWS
UNTIL THE STORM PASSES.

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

&&

LAT...LON 3499 11594 3447 11597 3453 11634 3501 11628
TIME...MOT...LOC 0321Z 180DEG 0KT 3489 11614 3460 11617

$$

JH

042 
WWUS55 KVEF 090340
SVSVEF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
840 PM PDT FRI JUL 8 2011

CAC071-090348-
/O.EXP.KVEF.SV.W.0091.000000T0000Z-110709T0345Z/
SAN BERNARDINO CA-
840 PM PDT FRI JUL 8 2011

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL SAN BERNARDINO COUNTY
WILL EXPIRE AT 845 PM PDT...

RADAR INDICATED THE STORMS NEAR LUDLOW WHICH PROMPTED THE SEVERE 
THUNDERSTORM WARNING HAD WEAKENED AND THE THREAT OF DAMAGING WINDS 
AND LARGE HAIL HAD DIMINISHED. THE THREAT OF HEAVY RAIN CONTINUES.

LAT...LON 3499 11594 3447 11597 3453 11634 3501 11628
TIME...MOT...LOC 0338Z 180DEG 0KT 3489 11614 3460 11617

$$

JH

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
325 PM PDT FRI JUL 8 2011

.SYNOPSIS...MONSOON MOISTURE IS STILL OVER MOST THE AREA AND WILL
KEEP THE CHANCES OF AFTERNOON AND EVENING THUNDERSTORMS GOING FOR
TODAY AND SATURDAY. ANY THUNDERSTORMS WILL HAVE THE POTENTIAL TO
BRING HEAVY RAIN AND GUSTY WINDS. A DRIER SOUTHWEST FLOW IS EXPECTED
TO SET UP EARLY NEXT WEEK BRINGING LOWER THUNDERSTORM CHANCES OVER
THE WESTERN HALF OF THE FORECAST AREA AND EVENTUALLY OVER THE ENTIRE
AREA BY MID WEEK.
&&

.SHORT TERM...VERY ACTIVE WEATHER GOING ON AND THIS WILL BE A SHORT
DISCUSSION. TROUGH THAT DROPPED INTO THE AREA FROM THE NORTHWEST
OVERNIGHT AND SLOWED DOWN AND IS OVER SOUTHWEST UTAH TO EASTERN
CLARK/WESTERN MOHAVE COUNTIES. THIS SEEMS TO BE A DIVIDING LINE
BETWEEN THE ACTIVE THUNDERSTORM AREAS ALONG AND SOUTHEAST OF IT FROM
THE LESS ACTIVE ON THE NORTHWEST SIDE. SEVERAL SEVERE STORMS POPPED
UP IN MOHAVE AND CLARK COUNTIES ALONG WITH VERY HEAVY RAINS. THE
ACTIVITY SHOULD DIE DOWN LATE THIS EVENING OR EARLY SATURDAY MORNING.

MADE ALMOST NO CHANGES TO THE PREVIOUS FORECAST. STILL LOOKING FOR
DRIER AIR TO MOVE IN FROM THE WEST. HAVE TRENDED THE POPS DOWN FROM
WEST TO EAST EACH DAY TO REFLECT THIS. MOHAVE COUNTY WILL BE THE
LAST TO DRY OUT AND UNTIL IT DOES THE THUNDERSTORM ACTIVITY COULD
STILL CAUSE FLOODING PROBLEMS.

.LONG TERM...MORNING MODELS ARE STILL AGREEING ON A SUBSTANTIAL
DRYING TREND FOR OUR AREA AS A PACIFIC TROUGH WORKS ITS WAY INTO THE
WEST COAST EARLY NEXT WEEK. KEPT SLIGHT CHANCE TO LOW END CHANCE
POPS IN MOHAVE COUNTY MONDAY AFTERNOON AND EVENING BUT LOWERED THEM
FOR TUESDAY AFTERNOON AND EVENING...THEN WENT WITH A DRY FORECAST
THEREAFTER. TEMPERATURES SHOULD BE NEAR TO SLIGHTLY BELOW NORMAL
THANKS TO FALLING HEIGHTS WITH THE INCOMING TROUGH...AND HUMIDITY
WILL ALSO DECREASE MARKEDLY AS THE SOUTHWEST FLOW ASSOCIATED WITH
THE TROUGH FLUSHES OUT THE MONSOON MOISTURE. THERE IS SOME EARLY
INDICATION THAT THE MONSOONAL FLOW WILL RETURN NEXT WEEKEND BUT
THIS IS WAY TOO EARLY TO BELIEVE AT THIS POINT.
&&

.AVIATION...FOR MCCARRAN...AFTERNOON AND EVENING THUNDERSTORMS TO
CONTINUE INTO EARLY EVENING ACROSS PORTIONS OF CLARK COUNTY AND
MAINLY IN THE PEACH SPRINGS CORRIDOR. WINDS WILL BE GUSTY AND
ERRATIC NEAR ANY THUNDERSTORMS. THUNDERSTORM CHANCES DECREASE A
LITTLE SATURDAY AFTERNOON AND EVENING...THEN LOWER SIGNIFICANTLY
SUNDAY AFTERNOON AND EVENING.

FOR THE REST OF SOUTHERN NEVADA...NORTHWEST ARIZONA...AND SOUTHEAST
CALIFORNIA...SCATTERED AFTERNOON AND EVENING THUNDERSTORMS ARE
EXPECTED INTO THIS EVENING...WITH THE GREATEST COVERAGE ROUGHLY
SOUTH OF A LINE FROM INDEPENDENCE CA TO MESQUITE NV. THUNDERSTORM
CHANCES DECREASE A LITTLE SATURDAY...FOLLOWED BY A MORE SIGNIFICANT
DECREASE FROM WEST TO EAST BEGINNING SUNDAY.
&&

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

JACQUES/SALMEN

HTTP://WEATHER.GOV/LASVEGAS

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LAS VEGAS NV
552 AM PDT FRI JUL 8 2011

AZZ001>003-036-CAZ519>527-NVZ014>022-090400-
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-
552 AM PDT FRI JUL 8 2011 /552 AM MST FRI JUL 8 2011/

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

.DAY ONE...TODAY AND TONIGHT

SCATTERED THUNDERSTORMS WILL OCCUR AGAIN TODAY AS PLENTY OF
MONSOONAL MOISTURE REMAINS IN PLACE. THUNDERSTORMS WILL DEVELOP OVER
THE MOUNTAINS OF THE MOJAVE DESERT AND SOUTHERN GREAT BASIN THEN
DRIFT INTO THE SURROUNDING VALLEYS. BURSTS OF HEAVY RAIN AND
LOCALIZED FLOODING REMAIN A CONCERN. REMEMBER...DO NOT ATTEMPT TO
TRAVEL ACROSS FLOODED ROADS OR LOW WATER CROSSINGS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

THUNDERSTORMS WILL START TO GET PUSHED FURTHER EAST SATURDAY AND
AS DRIER AIR PUSHES IN FROM THE WEST. THUNDERSTORM CHANCES WILL
DIMINISH EVEN MORE SUNDAY AND MONDAY WITH MAINLY MOHAVE COUNTY
SEEING ANY ACTIVITY. THUNDERSTORMS ARE EXPECTED TO BE OUT OF THE
REGION BY TUESDAY AS DRIER AIR WORKS OVER THE ENTIRE AREA.

.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.

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
436 PM PDT FRI JUL 08 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0410 PM     FLASH FLOOD      PANAMINT SPRINGS        36.33N 117.47W
07/08/2011                   INYO               CA   LAW ENFORCEMENT

            CHP REPORTS FLOODING ON STATE ROUTE 190 JUST WEST OF
            PANAMINT VALLEY ROAD. UNKNOWN NUMBER OF PEOPLE OUT OF
            THEIR VEHICLES STANDING ON HIGH GROUND.

&&

JH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
554 PM PDT FRI JUL 08 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0510 PM     TSTM WND GST     5 S OWENS VALLEY RAWS   37.32N 118.54W
07/08/2011  M51 MPH          INYO               CA   TRAINED SPOTTER

&&

DMAKER