Severe Thunderstorm Warning 84, NWS Las Vegas, NV

000 
WWUS55 KVEF 090102
SVSVEF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
601 PM PDT FRI SEP 8 2006

CAC071-090111-
/O.CAN.KVEF.SV.W.0084.000000T0000Z-060909T0115Z/
SAN BERNARDINO CA-
601 PM PDT FRI SEP 8 2006

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL SAN BERNARDINO
COUNTY IS CANCELLED...

AT 6 PM PDT...RADAR INDICATED THAT THE THUNDERSTORM OVER THE FAR 
EASTERN MOJAVE NATIONAL PRESERVE HAD WEAKENED. THEREFORE...THE 
SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED.

A FLASH FLOOD WARNING REMAINS IN EFFECT FOR THE AREA UNTIL 7 PM PDT.

LAT...LON 3522 11501 3511 11519 3492 11509 3502 11482

$$

MORGAN

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
845 AM PDT FRI SEP 8 2006

.SYNOPSIS...DRIER AND MORE STABLE AIR WILL SPREAD ACROSS THE REGION
FROM WEST TO EAST TODAY AND THROUGH THE WEEKEND. DECREASING
THUNDERSTORM COVERAGE CAN BE EXPECTED THIS AFTERNOON FOLLOWED BY
GENERALLY DRY CONDITIONS AND NEAR NORMAL TEMPERATURES SATURDAY AND
SUNDAY.
&&

.UPDATE...SOME CLOUDS STARTING TO BUILD ALONG CLARK/MOHAVE BORDER
ALTHOUGH RADAR RETURNS STILL NEAR ZERO. WILL HAVE TO KEEP A
CLOSE EYE TO SEE IF STORMS START TO FIRE IN THE NEXT COUPLE OF
HOURS. LATEST MSAS DP PLOT INDICATES TONGUE OF MODERATELY MOIST AIR
EXTENDING ACROSS EASTERN HALF OF THE CWA...THEREFORE STILL THINK WE
WILL HAVE SOME CONVECTIVE ACTIVITY TODAY. LI VALUES ALSO PROGGED TO
BE MODERATELY FAVORABLE FOR CONVECTION ALTHOUGH VALUES OF LESS THAN
MINUS SIX FROM THE NAM SEEM TOO LOW. BOTH GFS AND NAM NOT DOING A
GOOD JOB WITH THEIR MOISTURE FIELDS WHEN COMPARED TO OBS SO WILL PUT
MORE WEIGHT ON THE RUC FOR SHORT TERM FORECASTS. IT INDICATES A VORT
MAX WILL GO ACROSS SOUTHEASTERN AREA LATER THIS MORNING AND INTO THE
AFTERNOON. MAY HAVE TO ISSUE AN UPDATED PACKAGE LATER THIS MORNING
WITH HIGHER POPS FOR TODAY AND THIS EVENING FOR EASTERN AREAS IF
SATELLITE AND RADAR SHOWS ANY SIGNS OF ACTIVITY. FOR NOW WILL NOT
MAKE ANY CHANGES.
&&

.SHORT TERM...THE DRYING AND STABILIZING TREND WILL BE DEVELOPING
TODAY AS THE UPPER LOW OVER UTAH LIFTS TO THE NORTHEAST AND A WEAK
SHORTWAVE RIDGE MOVES OVER NEVADA BY THIS AFTERNOON. THIS WILL LEAD
TO A DEGREE OR TWO C OF WARMING AT 500 MB. ALSO THE UPPER LEVEL JET
SHIFTS IN A WAY THAT PLACES THE LEFT REAR ENTRANCE REGION OVER THE
FORECAST AREA THIS AFTERNOON WHICH WILL BE LESS FAVORABLE FOR BROAD
UPWARD MOTION. THE LATEST GFS IS A LITTLE FASTER AT DRYING AND
STABILIZING FROM WEST TO EAST THIS AFTERNOON THAN THE NAM. THIS MAY
BE PARTLY DUE TO THE FACT THAT THE NAM INDICATES WHAT APPEARS TO BE
A LOW LEVEL SURGE WITH 20KT SOUTHERLY WINDS AT 850 MB UP THE
COLORADO RIVER BETWEEN 12Z AND 18Z. THIS DOES NOT APPEAR LIKELY
GIVEN THE THUNDERSTORM COMPLEXES WHICH ROLLED FROM NORTH TO SOUTH
DOWN THE COLORADO RIVER VALLEY OVERNIGHT. WILL GO WITH THE MODEL
DRYING TRENDS AND UNFORTUNATELY...DUE TO A POWER OUTAGE...THERE WILL
BE NO 12Z DRA SOUNDING FOR ADDITIONAL INSIGHT. NO MENTION OF
THUNDERSTORMS FOR THE LAS VEGAS VALLEY TODAY AND ONLY 20 POPS
ELSEWHERE AROUND CLARK COUNTY. LINCOLN AND MOHAVE COUNTIES SHOULD
SEE ISOLATED TO SCATTERED THUNDERSTORMS THIS AFTERNOON. DRY WESTERLY
FLOW TAKES BETTER CONTROL OF THE AREA BY SATURDAY FOLLOWED BY A
RIDGE DEVELOPING OVER THE WEST COAST SUNDAY. TEMPS SHOULD BE NEAR
NORMAL AS INDICATED BY MOS GUIDANCE.

.LONG TERM...WAS PREOCCUPIED WITH ACTIVE WEATHER IN CWA DURING THE
EVENING SO NOT MUCH TIME LEFT FOR GRIDS AND MODEL EXAMINATION. THE
EXTENDED LOOKS TO BE QUIET. THE WEEKEND SHOULD HAVE SEEN THE
MOISTURE DRIVEN OUT. HIGH PRESSURE BUILDS SETS UP OVER THE WESTERN
STATES WITH THE MODELS SHOWING THIS TO GIVE WAY TO NORTHWEST FLOW
OVER THE AREAS THAT WILL KEEP THE AREA DRY AS WELL. TEMPERATURES
WILL CLIMB AT FEW DEGREES FROM THEIR EARLY WEEK BELOW NORMAL TO NEAR
NORMAL BY THE END OF THE EXTENDED.

&&

.AVIATION...TAFS AND TWEBS ADEQUATELY DESCRIBE EXPECTED WEATHER
CONDITIONS FOR AREA TERMINALS. SEE TAFS FOR
KLAS...KVGT...KDRA...KBIH...KDAG...KEED...FOR DETAILS.

AVIATION DISCUSSION NOT UPDATED FOR AMENDED TAFS.

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

BELL/ADAIR/JACQUES

HTTP://WEATHER.GOV/LASVEGAS

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1202 PM PDT FRI SEP 08 2006

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

1115 PM     TSTM WND GST     HENDERSON               36.03N 115.00W
09/07/2006  M0 MPH           CLARK              NV   MESONET

            MARLAN WALKER INTERNATIONAL SCHOOL MEASURED WIND GUSTS TO
            62 MPH. TREE LIMBS DOWN AROUND SCHOOL..NO OTHER OBSERVED
            DAMAGE.

1115 PM     TSTM WND GST     BULLHEAD CITY           35.15N 114.56W
09/07/2006  M0 MPH           MOHAVE             AZ   PUBLIC

            GUST 72 MPH WITH TSTM APPROACHING.

1120 PM     TSTM WND GST     OATMAN                  35.03N 114.38W
09/07/2006  M0 MPH           MOHAVE             AZ   PUBLIC

            G 70 MPH...PEA SIZE HAIL...0.95 RAIN IN 20 MINS...WASHES
            RUNNING....THE HIGHEST SEEN IN 12 YRS...

1120 PM     TSTM WND GST     15 NE KINGMAN           35.36N 113.84W
09/07/2006  M0 MPH           MOHAVE             AZ   PUBLIC

            G 74 MPH...MINOR FLOODING

&&

CSCHLOTT

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
403 PM PDT FRI SEP 08 2006

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

0356 PM     FLASH FLOOD      FURNACE CREEK           36.45N 116.85W
09/07/2006                   INYO               CA   PARK/FOREST SRVC

            FURNACE CREEK RECEIVED 0.52 INCHES OF RAINFALL THURSDAY
            EVENING. A UNOFFICIAL RAIN GUAGE 3 MILES NORTH OF THE
            VISITORS CENTER RECEIVED 1.00 INCH OF RAIN.SIGNIFICANT
            DAMAGE OCCURRED ALONG HIGHWAY 190 WHERE ECHO CANYON
            REACHES FURNACE CREEK WASH AND TO THE SOUTH.THREE
            EMPLOYESS CARS WERE WASHED AWAY NEAR FURNACE CREEK INN.

&&

CSCHLOTT