Severe Thunderstorm Warning 6, NWS Las Vegas, NV

000 
WWUS55 KVEF 100021
SVSVEF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
520 PM PDT WED JUL 9 2008

AZC015-100045-
/O.CON.KVEF.SV.W.0006.000000T0000Z-080710T0045Z/
MOHAVE AZ-
520 PM MST WED JUL 9 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM MST 
FOR SOUTHEAST MOHAVE COUNTY...

AT 518 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS 
LOCATED OVER EXTREME SOUTHEAST MOHAVE COUNTY...OR 26 MILES SOUTH OF 
WIKIEUP OR NEAR ALAMO LAKE...MOVING SOUTHWEST AT 20 MPH.

THE SEVERE THUNDERSTORM WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS
OF THE INDICATED COUNTY.

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

LAT...LON 3435 11368 3452 11333 3449 11331 3432 11332
      3430 11335 3429 11343 3430 11344 3430 11352
      3425 11357 3425 11359
TIME...MOT...LOC 0020Z 069DEG 20KT 3432 11354

$$

PIERCE

000 
WWUS55 KVEF 100044
SVSVEF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
542 PM PDT WED JUL 9 2008

AZC015-100052-
/O.EXP.KVEF.SV.W.0006.000000T0000Z-080710T0045Z/
MOHAVE AZ-
543 PM MST WED JUL 9 2008

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEAST MOHAVE COUNTY WILL 
EXPIRE AT 545 PM MST...

THE SEVERE THUNDERSTORM NEAR ALAMO LAKE HAS WEAKENED. THE THREAT FOR 
STRONG DAMAGING WINDS AND LARGE HAIL HAS PASSED.  

LAT...LON 3435 11368 3452 11333 3449 11331 3432 11332
      3430 11335 3429 11343 3430 11344 3430 11352
      3425 11357 3425 11359
TIME...MOT...LOC 0042Z 069DEG 20KT 3428 11368

$$

PIERCE

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
330 PM PDT WED JUL 9 2008

.SYNOPSIS...HIGH PRESSURE WILL GRADUALLY WEAKEN THURSDAY ALLOWING
FOR MONSOONAL MOISTURE TO BEGIN WORKING NORTHWARD. THERE WILL BE AN
INCREASING CHANCE OF SHOWERS AND THUNDERSTORMS THURSDAY AFTERNOON
OVER PORTIONS OF THE SOUTHERN GREAT BASIN. ADDITIONAL MOISTURE WILL
WORK NORTH FRIDAY BRINGING BETTER CHANCES OF SHOWERS AND
THUNDERSTORMS TO MUCH OF THE REGION. FLASH FLOODING COULD BE A
SIGNIFICANT THREAT TO AREAS ALONG AND SOUTHEAST OF INTERSTATE 15
OVER THE WEEKEND.
&&

.SHORT TERM...ONCE AGAIN ISOLATED SHOWERS AND THUNDERSTORMS
DEVELOPED OVER SOUTHERN AREAS OF MOHAVE COUNTY AS MOIST AIR HAS
REMAINED IN PLACE. THESE STORMS ARE GRADUALLY DRIFTING SOUTHWEST AND
MAY IMPACT PORTIONS OF EXTREME SOUTHERN NEVADA AND EASTERN SAN
BERNARDINO COUNTY THIS EVENING. EXPECT THESE STORMS TO GRADUALLY
DIMINISH AROUND SUNSET. TEMPERATURES IN THE LAS VEGAS VALLEY HAVE SO
FAR FALLEN A FEW DEGREES SHY OF THE FORECASTED HIGH TEMPERATURE AND
ARE CURRENTLY RUNNING 1 DEGREE BELOW 24 HOURS AGO. REACHING 112
TODAY MAY BE TOUGH...BUT WILL GO AHEAD AND LEAVE THE EXCESSIVE HEAT
WARNING UP FOR A BIT LONGER JUST IN CASE. OTHERWISE MODELS CONTINUE
TO SHOW MOISTURE INCREASE THURSDAY WITH DEWPOINTS REACHING 14 DEG C
OVER THE FAR SOUTHERN CWA WITH PW VALUES OVER AN INCH AND A QUARTER.
THIS COMBINED WITH A FAIRLY UNSTABLE AIRMASS WILL LEAD TO INCREASED
THUNDERSTORM COVERAGE THURSDAY AFTERNOON. DID UP THE POPS TO
SCATTERED OVER SOUTHERN MOHAVE AND SAN BERNARDINO COUNTIES AND
SLIGHT CHANCE FURTHER NORTH INTO CLARK COUNTIES INCLUDING THE SPRING
MOUNTAINS. LOW LEVEL FLOW STRENGTHENS OUT OF THE SOUTH THURSDAY
NIGHT AND FRIDAY WHICH WILL HELP PULL UP ADDITIONAL MOISTURE. LOOKS
LIKE MOST AREAS WILL SEE ISOLATED TO SCATTERED THUNDERSTORMS.
MODELS GIVE LIFTED INDICES OVER THE SOUTHERN ZONES FRIDAY AFTERNOON
OF -4 TO -7 ALONG WITH PRECIPITABLE WATER OF OVER AN INCH. ALTHOUGH
MODELS ARE SHOWING H5 WINDS AROUND 25KTS THERE WILL BE THE
POSSIBILITY OF FLOODING DANGER WITH THESE STORMS.

.LONG TERM...BY SATURDAY AFTERNOON THE INVERTED TROUGH AXIS WILL
HAVE WORKED WESTWARD INTO SOCAL...PUTTING THE CWFA ON THE MOIST EAST
SIDE OF THIS FEATURE. THE GFS FORECASTS PWATS TO GET UP AROUND 1.5
INCHES IN LAS VEGAS THEN...AND BOTH THE GFS AND ECMWF SHOW A
VARIABLE STEERING FLOW AT AROUND 5 KTS OR LESS ACROSS MUCH OF THE
AREA. GIVEN THIS...THERE IS HIGH CONCERN FOR SLOW MOVING STORMS
ACROSS THE CWFA AND FOR THE POTENTIAL FOR LOCALLY HEAVY RAIN AND
FLASH FLOODING. HAVE ADDED IN THE POTENTIAL OF HEAVY RAIN INTO THE
GRIDS/ZONES FOR SATURDAY AFTERNOON AND EVENING AS IT IS STILL TO
EARLY TO ISSUE A FLASH FLOOD WATCH...BUT THE FLOOD THREAT HAS BEEN
ADDRESSED IN THE HWO. BY SUNDAY PWATS ARE FORECASTED TO LOWER A TAD
TO AROUND 1.3 INCHES...AND THE STEERING FLOW IS STILL LIGHT AND
VARIABLE...ESPECIALLY AT 700 MB...SO THE THREAT OF SLOW MOVING
STORMS CAPABLE OF PRODUCING HEAVY RAIN AND FLASH FLOODING LOOKS TO
BE A CONCERN THEN AS WELL. THE OPERATIONAL GFS HAS TRENDED TOWARDS
THE ECMWF IN BRINGING DEEPER MOISTURE FURTHER NORTH IN OUR CWFA...SO
AGAIN DID TWEAK UP POPS A LITTLE FURTHER NORTH FOR SUNDAY AFTERNOON.

AS WE MOVE INTO MONDAY MOISTURE STILL LOOKS TO LINGER ACROSS THE
REGION WITH MAINLY AFTERNOON/EVENING CONVECTION STILL AROUND ACROSS
THE AREA. AS AN UPPER LEVEL TROUGH DIPS SOUTH INTO THE PAC NW IT
WILL HELP THE UPPER FLOW BECOME MORE SOUTHWESTERLY ACROSS THE AREA.
THIS WILL ALLOW FOR DRIER AIR TO GRADUALLY WORK EASTWARD ACROSS THE
AREA REDUCING THE COVERAGE AND ODDS FOR CONVECTION AS THE WEEK
PROGRESSES.

HIGH TEMPS WILL COOL A LITTLE OVER THE WEEKEND DUE TO THE INCREASE
IN CLOUDS AND CONVECTION...THEN A SLOW MODERATION UPWARDS IS
EXPECTED TOWARDS MID-WEEK AS THE AMOUNT OF CLOUDS AND CONVECTION
LESSEN.
&&

.AVIATION...FOR MCCARRAN...DIURNAL SOUTHWEST WINDS AROUND 5 KTS
LATER THIS EVENING...BECOMING VARIABLE AROUND 14Z THU. AFTER 18Z
THU...WINDS LOOK TO BECOME EASTERLY AROUND 5 KTS. ISOLATED TSTMS IN
THE PEACH SPRINGS CORRIDOR AND POSSIBLY THE DAGGETT CORRIDOR THIS
EVENING AND AGAIN TOMORROW AFTERNOON/EVENING. ALTHOUGH SOME CUMULUS
SHOULD DEVELOP AGAIN TOMORROW AROUND THE LV VALLEY AT/ABOVE 12K
FEET...IF ANY TSTMS DEVELOP THEY SHOULD JUST BE OVER THE SPRING MTS
OR SHEEP RANGE.

FOR THE REST OF SOUTHERN NEVADA...NORTHWEST ARIZONA...AND SOUTHEAST
CALIFORNIA...GENERALLY LIGHT WINDS TONIGHT AND TOMORROW. ISOLATED
TSTMS THIS EVENING IN MOHAVE COUNTY AND POSSIBLE EASTERN SAN
BERNARDINO COUNTY AND AGAIN TOMORROW AFTERNOON/EVENING.
&&

.FIRE WEATHER...MONSOONAL MOISTURE WILL GRADUALLY START TO WORK
NORTH THURSDAY AFTERNOON WITH A LITTLE BETTER CHANCE OF AFTERNOON
THUNDERSTORMS ACROSS SOUTHERN MOHAVE AND SAN BERNARDINO COUNTIES.
MOISTURE REALLY BEGINS TO INCREASE LATE THURSDAY AND FRIDAY WITH
BETTER CHANCES OF WET THUNDERSTORMS REACHING INTO SOUTHERN NEVADA
AND MUCH OF MOHAVE AND SAN BERNARDINO COUNTIES. TEMPERATURES WILL
COOL SLIGHTLY THURSDAY THROUGH THE WEEKEND DUE TO THE INCREASED
MOISTURE ALONG WITH MUCH BETTER RELATIVE HUMIDITY RECOVERIES.
&&

.VEF WATCHES/WARNINGS/ADVISORIES...
NV...EXCESSIVE HEAT WARNING UNTIL 8 PM PDT TODAY FOR
     NVZ016-017-020>022.
AZ...EXCESSIVE HEAT WARNING UNTIL 8 PM MST TODAY FOR AZZ002-003-036.
CA...EXCESSIVE HEAT WARNING UNTIL 8 PM PDT TODAY FOR CAZ522>527.
&&

GORELOW/STACHELSKI

HTTP://WEATHER.GOV/LASVEGAS

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LAS VEGAS NV
252 AM PDT WED JUL 9 2008

AZZ002-003-036-CAZ522>527-NVZ016-017-020>022-100700-
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-
NORTHEAST CLARK COUNTY-WESTERN CLARK AND SOUTHERN NYE COUNTY-
LAS VEGAS VALLEY-SOUTHERN CLARK COUNTY-
252 AM PDT WED JUL 9 2008 /252 AM MST WED JUL 9 2008/

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

.DAY ONE...TODAY AND TONIGHT

AN EXCESSIVE HEAT WARNING IS IN EFFECT TODAY FOR AREAS BELOW 4000
FEET. TAKE PRECAUTIONS TO AVOID HEAT RELATED ILLNESSES.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

TEMPERATURES WILL MODERATE SLIGHTLY ON THURSDAY...THEN MONSOON
MOISTURE IS EXPECTED TO INCREASE BEGINNING FRIDAY. THIS WILL BRING
INCREASING CHANCES FOR SHOWERS AND THUNDERSTORMS...WITH THE
HIGHEST CHANCES OVER THE WEEKEND. FLASH FLOODING WILL BE A
SIGNIFICANT THREAT...ESPECIALLY IN AREAS ALONG AND SOUTHEAST OF
INTERSTATE 15.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED THROUGH THURSDAY...HOWEVER
SPOTTERS ARE ENCOURAGED TO REPORT ANY SIGNIFICANT WEATHER
ACCORDING TO STANDARD OPERATING PROCEDURES. SPOTTER ACTIVATION
WILL BE LIKELY OVER THE WEEKEND.

AZZ001-CAZ519>521-NVZ014-015-018-019-100700-
NORTHWEST PLATEAU-EASTERN SIERRA SLOPES-OWENS VALLEY-
WHITE MOUNTAINS OF INYO COUNTY-ESMERALDA AND CENTRAL NYE COUNTY-
LINCOLN COUNTY-SHEEP RANGE-SPRING MOUNTAINS-
252 AM PDT WED JUL 9 2008 /252 AM MST WED JUL 9 2008/

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

.DAY ONE...TODAY AND TONIGHT

HAZARDOUS WEATHER IS NOT LIKELY.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

MONSOON MOISTURE IS EXPECTED TO INCREASE BEGINNING FRIDAY. THIS
WILL BRING INCREASING CHANCES FOR SHOWERS AND THUNDERSTORMS...WITH
THE HIGHEST CHANCES OVER THE WEEKEND. FLASH FLOODING WILL BE A
SIGNIFICANT THREAT...ESPECIALLY IN AREAS ALONG AND SOUTHEAST OF
INTERSTATE 15.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED THROUGH THURSDAY...HOWEVER
SPOTTERS ARE ENCOURAGED TO REPORT ANY SIGNIFICANT WEATHER
ACCORDING TO STANDARD OPERATING PROCEDURES. SPOTTER ACTIVATION
WILL BE POSSIBLE OVER THE WEEKEND.

MORGAN

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
400 PM PDT WED JUL 09 2008

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

0320 PM     HAIL             HUALAPAI PEAK           35.07N 113.90W
07/09/2008  E0.75 INCH       MOHAVE             AZ   COUNTY OFFICIAL

&&

STACHELSKI