Georgia-Florida SKYWARN: 09/01/07

Saturday, September 1, 2007

KCRP [020326]: Preliminary Local Storm Report

NWUS54 KCRP 020326
LSRCRP

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
1026 PM CDT SAT SEP 01 2007

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

1020 PM FLASH FLOOD ALICE 27.76N 98.07W
09/01/2007 JIM WELLS TX LAW ENFORCEMENT

SHERIFF DISPATCHER REPORTED STALLED VEHICLES IN THE CITY
LIMITS OF ALICE WITH LAW ENFORCEMENT BARRICADED ROADS IN
ALICE.

SCORDERO

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KTWC [020305]: Preliminary Local Storm Report...summary

NWUS55 KTWC 020305
LSRTWC

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE TUCSON AZ
805 PM MST SAT SEP 01 2007

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

0200 PM TSTM WND DMG 7 E AJO 32.39N 112.75W
09/01/2007 PIMA AZ COUNTY OFFICIAL

POWER LINES DOWNED EAST OF AJO. THIS HAS CAUSED COMPLETE
POWER OUTAGE ACROSS WESTERN PIMA COUNTY. TIME OF EVENT
ESTIMATED BY COUNTY OFFICIAL.

0500 PM TSTM WND DMG NW TUCSON 32.24N 110.94W
09/01/2007 PIMA AZ NWS EMPLOYEE

OFF DUTY WEATHER SERVICE EMPLOYEE REPORTED SEVERAL LARGE
TREE LIMBS BROKEN DUE TO WIND DAMAGE

JGLUECK

KJAX [020251]: Preliminary Local Storm Report...summary

NWUS52 KJAX 020251
LSRJAX

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1051 PM EDT SAT SEP 01 2007

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

0900 AM FLOOD 10 SE HAZLEHURST 31.76N 82.48W
09/01/2007 APPLING GA EMERGENCY MNGR

FLOODING ALONG HIWAY 341W BETWEEN HAZLEHURST AND GRAHAM.
WATER OVER THE ROAD COVERING ALL 4 LANES.

0100 PM FLOOD BAXLEY 31.76N 82.35W
09/01/2007 APPLING GA EMERGENCY MNGR

AT LEAST 10 STREETS IN BAXLEY HAD STANDING WATER DUE TO
HEAVY RAINFALL BETWEEN 9 AM AND 1 PM TODAY.

0320 PM TSTM WND DMG ST. MARYS 30.71N 81.54W
09/01/2007 CAMDEN GA FIRE DEPT/RESCUE

A TREE FELL DOWN ONTO A POWERLINE. TIME ESTIMATED.

0515 PM LIGHTNING PONTE VEDRA BEACH 30.24N 81.39W
09/01/2007 ST. JOHNS FL EMERGENCY MNGR

HOUSE FIRE IN PONTE VEDRA DUE TO LIGHTNING STRIKE.

0530 PM LIGHTNING ST. AUGUSTINE 29.89N 81.31W
09/01/2007 ST. JOHNS FL EMERGENCY MNGR

911 CENTER HAD DAMAGE TO SOME CONSOLES DUE TO LIGHTNING
STRIKE.

0530 PM LIGHTNING ST. AUGUSTINE 29.89N 81.31W
09/01/2007 ST. JOHNS FL EMERGENCY MNGR

HOUSE FIRE IN ST.AUGUSTINE STARTED BY LIGHTNING.

0545 PM FLOOD ST. AUGUSTINE 29.89N 81.31W
09/01/2007 ST. JOHNS FL PUBLIC

ROAD FLOODED IN DOWNTOWN ST. AUGUSTINE AS WELL AS ST.
AUGUSTINE SHORES. CARS REPORTEDLY ABANDONED DUE TO HIGH
WATER ON ROADWAYS.

KJAX [020219]: Preliminary Local Storm Report

NWUS52 KJAX 020219
LSRJAX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1019 PM EDT SAT SEP 01 2007

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

0320 PM TSTM WND DMG ST. MARYS 30.71N 81.54W
09/01/2007 CAMDEN GA FIRE DEPT/RESCUE

A TREE FELL DOWN ONTO A POWERLINE. TIME ESTIMATED.

ARS

KPSR [020216]: Preliminary Local Storm Report

NWUS55 KPSR 020216
LSRPSR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PHOENIX AZ
715 PM MST SAT SEP 01 2007

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

0511 PM TSTM WND DMG APACHE JUNCTION 33.40N 111.55W
09/01/2007 PINAL AZ PUBLIC

ESTIMATED WIND GUST 60 MPH WITH ROOF BLOWN OFF WOOD
STRUCTURE AT U.S. HIGHWAY 60 AND GOLDFIELD RD.

0515 PM DUST STORM MESA 33.42N 111.74W
09/01/2007 MARICOPA AZ TRAINED SPOTTER

ESTIMATED WIND GUST 40-45 MPH AND VISIBILITY LESS THAN
300 FT DUE TO BLOWING DUST AT SOSSAMAN RD. AND BASELINE
RD.

0525 PM TSTM WND DMG APACHE JUNCTION 33.40N 111.55W
09/01/2007 PINAL AZ PUBLIC

POWER LINES DOWN.

0531 PM DUST STORM GILBERT 33.33N 111.76W
09/01/2007 MARICOPA AZ TRAINED SPOTTER

VISIBILITY LESS THAN 1/4 MILE DUE TO BLOWING DUST AT
HIGLEY RD. AND CHANDLER HEIGHTS RD.

0552 PM DUST STORM CHANDLER 33.29N 111.87W
09/01/2007 MARICOPA AZ PUBLIC

VISIBILITY LESS THAN 1/4 MILE DUE TO BLOWING DUST AT
ARIZONA AVE. AND CHANDLER HEIGHTS RD.

ROGERS

KBRO [020139]: Preliminary Local Storm Report

NWUS54 KBRO 020139
LSRBRO

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
839 PM CDT SAT SEP 01 2007

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

0825 PM HAIL 1 S FALFURRIAS 27.21N 98.14W
09/01/2007 E0.25 INCH BROOKS TX PUBLIC

REPORT OF BRIEF HAIL FROM THUNDERSTORM RELAYED VIA BROOKS
COUNTY SHERIFF.

BMILLER

KLOX [020117]: Preliminary Local Storm Report

NWUS56 KLOX 020117
LSRLOX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OXNARD CA
617 PM PDT SAT SEP 01 2007

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

0445 PM TSTM WND DMG 2 SSW LAKE LOS ANGELES 34.59N 117.84W
09/01/2007 LOS ANGELES CA TRAINED SPOTTER

SEVERAL TREE LIMBS DOWN 5 INCH DIAMTER ALONG ANTELOPE HWY
14 BETWEEN AVE N AND 50TH ST. EAST

0450 PM FLASH FLOOD 3 SSW PALMDALE 34.57N 118.11W
09/01/2007 LOS ANGELES CA COUNTY OFFICIAL

FLASH FLOODING AT AVE 0 TO AVE 08

0445 PM FLASH FLOOD 2 SSW LAKE LOS ANGELES 34.59N 117.84W
09/01/2007 LOS ANGELES CA TRAINED SPOTTER

FLASH FLOODING UP TO 1 FT DEEP ALONG PALMDALE BLVD.
AROUND AVE J.

KAPLAN

KLOX [020105]: Preliminary Local Storm Report

NWUS56 KLOX 020105
LSRLOX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OXNARD CA
604 PM PDT SAT SEP 01 2007

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

0420 PM TORNADO 8 SE LANCASTER 34.61N 118.08W
09/01/2007 LOS ANGELES CA AIRPLANE PILOT

WEAK TORNADO ON THE GROUND.

0450 PM TORNADO 3 N LANCASTER 34.74N 118.18W
09/01/2007 LOS ANGELES CA TRAINED SPOTTER

KAPLAN

DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 020100
SWODY1
SPC AC 020058

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0758 PM CDT SAT SEP 01 2007

VALID 020100Z - 021200Z

..NO SVR TSTM AREAS FORECAST...

..SYNOPSIS...
PROGRESSIVE NRN STREAM PATTERN CONTINUES ALOFT...WHILE STRONG
MID/UPPER RIDGING EXTENDS FROM 4-CORNERS AREA HIGH ENEWD ACROSS
CENTRAL PLAINS AND MID MS VALLEY. SHORTWAVE TROUGH -- NOW EVIDENT
IN MOISTURE CHANNEL IMAGERY OVER ERN/SRN SASK -- IS FCST TO MOVE EWD
ACROSS MB TO EXTREME NWRN ONT BY 02/12Z. FOREGOING/DEEP SFC LOW
WILL REMAIN WELL N OF CANADIAN BORDER...WITH COLD FRONT TRAILING
SWWD ATTM ACROSS NERN ND...WRN SD INTO WRN WY. THIS FRONT WILL MOVE
EWD ACROSS REMAINDER ND...BUT SHOULD WEAKEN AND BECOME
QUASISTATIONARY OVERNIGHT IN CENTRAL/SWRN SD AND ERN WY. PREFRONTAL
TROUGH AND WIND SHIFT LINE IS ANALYZED FROM E-CENTRAL ND SSWWD
ACROSS PIR AREA AND CHERRY COUNTY NEB.

OTHERWISE...DIFFUSE MID/UPPER LEVEL TROUGHING COVERS MUCH OF GULF
COAST AND SRN ATLANTIC COAST...WITH SEVERAL EMBEDDED/MESOSCALE
VORTICITY MAXIMA...IN SUPPORT OF GEN TSTM POTENTIAL OVER THAT
REGION. PRIND THUNDER COVERAGE OVER SERN CONUS AND S TX WILL
DIMINISH GRADUALLY THROUGH REMAINDER PERIOD...WITH SPREADING OUTFLOW
POOLS AND AMBIENT SFC DIABATIC COOLING.

..NRN PLAINS...
ISOLATED TSTMS HAVE DEVELOPED OVER NERN ND JUST S OF BORDER.
ADDITIONAL DEVELOPMENT POSSIBLE NEXT 1-2 HOURS UNTIL CAPPING
STRENGTHENS AGAIN WITH LOSS OF SFC HEATING...AND STRONGEST
ISALLOBARIC FORCING SHIFTS FARTHER AWAY FROM AREA OVER CANADA.
SOMEWHAT MORE SLY SFC WINDS IN AND E OF RED RIVER VALLEY AREA MAY
ENHANCE BOTH LOW LEVEL HODOGRAPHS AND DEEP-LAYER SHEAR...WITH 35-45
KT EFFECTIVE SHEAR VALUES POSSIBLE. ANY SUSTAINED CONVECTION MAY
PRODUCE LARGE HAIL AND DAMAGING GUSTS.

ALTHOUGH SEVERAL BRIEF CB'S HAVE DEVELOPED INVOF PREFRONTAL TROUGH
BETWEEN CENTRAL SD AND NWRN NEB...MODIFIED RUC SOUNDINGS SUGGEST
THAT EXPECTED SFC COOLING WILL INCREASE SBCINH AND REMOVE MLCAPE
OVER NEXT 2-3 HOURS. ANY ADDITIONAL TSTM DEVELOPMENT ALSO SHOULD BE
BRIEF...AND SVR THREAT HAS DIMINISHED BELOW 5 PERCENT MRGL
PROBABILITIES.

STRONG CAPPING SHOULD CONTINUE TO PRECLUDE SFC-BASED CONVECTIVE
DEVELOPMENT ELSEWHERE ALONG FRONTAL ZONE NOW THAT SFC TEMPS HAVE
PEAKED.

..AZ...EXTREME SERN CA...
BKN BAND OF TSTMS HAS FORMED ON HIGHER TERRAIN OF CENTRAL/SERN AZ
AND S-SW OF SRN TIP OF NV...IN CA. THIS ACTIVITY AND ASSOCIATED
OUTFLOW PLUMES WILL MOVE SWWD ACROSS MUCH OF S-CENTRAL/SWRN AZ WITH
POTENTIAL FOR OCCASIONAL STG-SVR GUSTS. ALTHOUGH MID/UPPER LEVELS
OF TUS RAOB APPEAR TO HAVE BEEN ENTRAINED IN CONVECTION AND CONTAIN
SOME BAD DATA...VERY WELL-MIXED/INVERTED-V PROFILE WAS EVIDENT BELOW
CLOUD BASE IN SUPPORT OF CONVECTIVE WIND POTENTIAL.

.EDWARDS.. 09/02/2007

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KSGX [012130]: Preliminary Local Storm Report

NWUS56 KSGX 012130
LSRSGX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN DIEGO CA
230 PM PDT SAT SEP 01 2007

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

0203 PM FLASH FLOOD OAK GROVE 33.38N 116.79W
09/01/2007 SAN DIEGO CA NWS EMPLOYEE

FLASH FLOOD IN OAK GROVE. 3-4 INS. ACROSS HWY 79. DOWNED
TREES AND MANY LARGE LIMBS BLOCKING ROAD.

MANU

KSGX [012127]: Preliminary Local Storm Report

NWUS56 KSGX 012127
LSRSGX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN DIEGO CA
227 PM PDT SAT SEP 01 2007

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

0203 PM FLASH FLOOD FOREST FALLS 34.09N 116.92W
09/01/2007 SAN BERNARDINO CA TRAINED SPOTTER

FLASH FLOOD IN PROGRESS AT MT HOME JUST S OF FOREST
FALLS.

MANU

KSGX [012126]: Preliminary Local Storm Report

NWUS56 KSGX 012126
LSRSGX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN DIEGO CA
225 PM PDT SAT SEP 01 2007

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

0220 PM FLASH FLOOD WRIGHTWOOD 34.36N 117.63W
09/01/2007 SAN BERNARDINO CA TRAINED SPOTTER

FLASH FLOOD IN PROGRESS AT LONE PINE AND SHEEP CREEK WASH

MANU

KRNK [012017]: Preliminary Local Storm Report

NWUS51 KRNK 012017
LSRRNK

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
416 PM EDT SAT SEP 01 2007

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

1000 PM FLOOD ROANOKE 37.28N 79.96W
08/31/2007 CITY OF ROANOKE VA LAW ENFORCEMENT

URBAN FLOODING. SEVERAL ROADS CLOSED DUE TO HIGH WATER.
NO DAMAGE.

JJACKSON

DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 011958
SWODY1
SPC AC 011956

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0256 PM CDT SAT SEP 01 2007

VALID 012000Z - 021200Z

..NO SVR TSTM AREAS FORECAST...

..ERN ND/NWRN MN...

AFTERNOON WATER VAPOR IMAGERY SHOWS LEAD SHORT WAVE TROUGH
TRANSLATING ENEWD INTO WRN MANITOBA WITH WEAKER UPSTREAM IMPULSE
MOVING INTO WRN SASKATCHEWAN. IN THE LOW-LEVELS...SURFACE PRESSURE
TROUGH WAS SITUATED OVER THE CNTRL DAKOTAS AS OF 19Z WITH TRAILING
COLD FRONT SLOWLY PUSHING SWD THROUGH NRN MT. AS MENTIONED IN
PREVIOUS OUTLOOK...AIR MASS REMAINS STRONGLY CAPPED BY WELL-DEFINED
ELEVATED MIXED LAYER WITH SURFACE TEMPERATURES OF 95-100 F NECESSARY
TO BREAK CAP. CLOUD DEBRIS REMNANT FROM NOCTURNAL ELEVATED TSTMS
HAS SLOWED DAYTIME HEATING ACROSS MUCH OF PRE-FRONTAL WARM
SECTOR...THOUGH LOCALLY STRONGER HEATING IS OCCURRING INVOF TROUGH
OVER CNTRL ND WHERE TEMPERATURES HAVE WARMED TO AROUND 90 F.

WATER VAPOR IMAGERY AND SHORT TERM MODEL GUIDANCE SUGGEST THAT THE
STRONGER LARGE-SCALE FORCING FOR ASCENT ATTENDANT TO LEAD IMPULSE IS
QUICKLY LIFTING NEWD INTO MANITOBA AND WRN ONTARIO. AS SUCH...ANY
DIURNAL...SURFACE-BASED STORM DEVELOPMENT WILL BE LARGELY DEPENDENT
ON CONVERGENCE ALONG BOUNDARY AND DIABATIC HEATING. SHOULD STORMS
DEVELOP AND BECOME SUSTAINED...THE PRESENCE OF STEEP LAPSE
RATES...SBCAPES OF 1000-1500 J/KG AND 30-35 KT OF EFFECTIVE BULK
SHEAR INDICATE POTENTIAL FOR ORGANIZED STORMS CAPABLE OF DAMAGING
WINDS AND HAIL. LOW WIND/HAIL PROBABILITIES WILL BE MAINTAINED
GIVEN THE UNCERTAINTIES IN STORM INITIATION AND COVERAGE.

..CNTRL HIGH PLAINS...

VISIBLE SATELLITE SHOWS GROWING CUMULUS ALONG SRN EXTENSION OF
PRESSURE TROUGH FROM LIC AND AKO NNEWD INTO WRN NEB. RUC OBJECTIVE
SOUNDING AND PLAN VIEW DATA INDICATE THAT AIR MASS HAS BECOME
MODERATELY UNSTABLE OWING TO STRONG DIABATIC HEATING WITH SBCAPES OF
1000-1500 J/KG. REGIONAL PROFILERS SHOW THAT VERTICAL SHEAR REMAINS
RELATIVELY WEAK ACROSS INSTABILITY AXIS...HOWEVER THE PRESENCE OF
RATHER STEEP LOW TO MID-LEVEL LAPSE RATES MAY SUPPORT A FEW STRONGER
STORMS CAPABLE OF LOCALLY DAMAGING WINDS AND SOME HAIL.

..AZ/NM...

MORE WIDESPREAD TSTM DEVELOPMENT HAS OCCURRED SO FAR TODAY ALONG WRN
FRINGE OF MID-LEVEL MOIST PLUME FROM E-CNTRL AZ EWD INTO NM WITH
MORE ISOLATED DEVELOPMENT OCCURRING WITHIN DRIER MID-LEVEL
ENVIRONMENT OVER NRN AND CNTRL AZ /PER WATER VAPOR IMAGERY/. 12Z
SOUNDINGS FROM THE PHOENIX AND TUCSON AREAS SHOWED INVERTED-V
PROFILES WHICH HAVE LIKELY BECOME MORE PRONOUNCED AS TEMPERATURES
HAVE WARMED THROUGH THE 90S TO 100-105 F. DESPITE THE RATHER WEAK
TROPOSPHERIC WIND FIELDS...SOME POTENTIAL FOR LOCALLY STRONG WET
MICROBURSTS WILL EXIST AS ONGOING STORMS MOVE/DEVELOP SWWD INTO
LOWER ELEVATIONS WHERE BOUNDARY LAYER IS HOT...DEEPLY MIXED AND
SUPPORTIVE OF STRONG EVAPORATIONAL COOLING IN THE SUB CLOUD LAYER.

.MEAD.. 09/01/2007

KPDT [011924]: Preliminary Local Storm Report...summary

NWUS56 KPDT 011924
LSRPDT

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE PENDLETON OR
1223 PM PDT SAT SEP 01 2007

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

0310 PM TSTM WND DMG 2 ENE MITCHELL 44.58N 120.11W
08/31/2007 WHEELER OR CO-OP OBSERVER

ESTIMATED WINDS OVER 40 MPH CAUSED 6 INCH TREE LIMB TO
FALL.

0315 PM HAIL 2 NNE IONE 45.52N 119.81W
08/31/2007 E0.75 INCH MORROW OR TRAINED SPOTTER

3/4 INCH HAIL FELL JUST NORTH OF THE TOWN OF LEXINGTON.

0430 PM TSTM WND DMG WESTON 45.82N 118.43W
08/31/2007 UMATILLA OR PUBLIC

TREE DOWNED ONTO VEHICLE FROM THUNDERSTORM WINDS. NO
INJURIES.

0430 PM TSTM WND DMG WALLA WALLA 46.07N 118.34W
08/31/2007 WALLA WALLA WA AMATEUR RADIO

AMATEUR RADIO OPERATOR RECEIVED REPORT OF ESTIMATED 50

MPH WINDS WHICH CAUSED POWER OUTAGE FOR PORTIONS OF CITY.

0450 PM HAIL 2 NW TOLLGATE 45.79N 118.11W
08/31/2007 E0.88 INCH UMATILLA OR TRAINED SPOTTER

HAIL AND HEAVY RAIN REPORTED AT THE TOLLGATE STORE. HAIL
UP TO THE SIZE OF A NICKEL FELL FIVE MINUTES EARLIER.
CURRENTLY PEA-SIZED HAIL FALLING.

0515 PM TSTM WND DMG 1 E COVE 45.30N 117.79W
08/31/2007 UNION OR TRAINED SPOTTER

PEAK WIND GUST OF OVER 50 MPH ESTIMATED CAUSED 4 INCH
TREE LIMBS TO FALL.

0530 PM TSTM WND DMG SE COVE 45.30N 117.81W
08/31/2007 UNION OR TRAINED SPOTTER

STRONG WINDS ASSOCIATED WITH A THUNDERSTORM BROKE TREE
LIMBS ACROSS POWER LINES. DIAMETER OF TREE LIMBS WAS AT
LEAST 6 INCHES.

0540 PM HEAVY RAIN IMBLER 45.46N 117.96W
08/31/2007 M0.87 INCH UNION OR MESONET

IMBLER HIGH SCHOOL WEATHER STATION RECEIVED STORM TOTAL
PRECIPITATION OF 0.87 IN SIX HOURS.

MSMITH

KLIX [011923]: Preliminary Local Storm Report

NWUS54 KLIX 011923
LSRLIX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
223 PM CDT SAT SEP 01 2007

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

0208 PM LIGHTNING KILN 30.42N 89.43W
09/01/2007 HANCOCK MS EMERGENCY MNGR

NUMEROUS CLOUD TO GROUND LIGHTNING. LIGHTNING STRUCK A
HOUSE IN KILN SETTING IT ON FIRE.

DAY2SVR: Nws Storm Prediction Center Norman Ok

ACUS02 KWNS 011713
SWODY2
SPC AC 011711

DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1211 PM CDT SAT SEP 01 2007

VALID 021200Z - 031200Z

..NO SVR TSTM AREAS FORECAST...

..SYNOPSIS...

BELT OF POLAR WESTERLIES WILL PERSIST ACROSS THE NRN TIER OF STATES
AND CANADA WITH PRIMARY...EMBEDDED SHORT WAVE TROUGHS OVER
ONTARIO/QUEBEC AND THE NERN PACIFIC. IN THE LOWER LATITUDES...UPPER
HIGH WILL REMAIN ANCHORED OVER UT WHILE VORTICITY MAXIMUM TRANSLATES
WWD ACROSS TX. AT THE SURFACE...FRONT ATTENDANT TO THE
ONTARIO/QUEBEC SHORT WAVE TROUGH WILL SHIFT EWD THROUGH THE GREAT
LAKES WITH THE WRN EXTENSION OF THIS BOUNDARY BECOMING
QUASI-STATIONARY OVER THE NRN PLAINS...PRIOR TO LIFTING SLOWLY NWD
AS A WARM FRONT.

..ND...

QUASI-ZONAL...MID-LEVEL FLOW ACROSS THE NRN AND CANADIAN ROCKIES
WILL INDUCE LEE CYCLOGENESIS AND THE DEVELOPMENT OF A SLY LLJ SUNDAY
OVER THE NRN HIGH PLAINS. ATTENDANT LOW-LEVEL WAA REGIME N OF
SURFACE BOUNDARY WILL FIRST DEVELOP OVER ERN MT/WRN ND SUNDAY
EVENING BEFORE SHIFTING EWD ACROSS ND SUNDAY NIGHT AS LLJ VEERS.
MARGINAL LOW-LEVEL MOISTURE CONTENT COUPLED WITH RATHER WARM
TEMPERATURES IN THE 850-700 MB LAYER WILL RESULT IN CONSIDERABLE
CONVECTIVE INHIBITION...EVEN FOR ELEVATED PARCELS.

ELEVATED TSTMS MAY EVENTUALLY DEVELOP LATE SUNDAY NIGHT INTO MONDAY
MORNING OVER ERN ND WITH STORMS LIKELY BASED ABOVE THE WARM LAYER
WHERE ONLY WEAK CONVECTIVE INSTABILITY WILL RESIDE. SOME HAIL WILL
BE POSSIBLE WITH THE STRONGER UPDRAFTS...THOUGH IT SHOULD REMAIN
BELOW SEVERE LEVELS.

..NM/AZ...

DIURNAL TSTMS WILL ONCE AGAIN OCCUR SUNDAY OVER FAVORED TERRAIN AS
BOUNDARY LAYER HEATS/DESTABILIZES. WHILE LOW-LEVEL LAPSE RATES WILL
STEEPEN WITH DAYTIME HEATING/MIXING...MODEL FORECAST SOUNDINGS
SUGGEST THAT MARGINAL MID-LEVEL LAPSE RATES WILL LIMIT THE DEGREE OF
CONVECTIVE INSTABILITY. SOME OF THE MORE INTENSE STORMS WILL BE
CAPABLE OF LOCALLY STRONG WIND GUSTS...THOUGH THE MARGINAL
INSTABILITY AND VERTICAL SHEAR SHOULD PRECLUDE A MORE ORGANIZED
SEVERE THREAT.

.MEAD.. 09/01/2007

KCHS [011649]: Preliminary Local Storm Report

NWUS52 KCHS 011649
LSRCHS

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
1249 PM EDT SAT SEP 01 2007

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

1245 PM FLOOD 2 N SKIDAWAY ISLAND 31.96N 81.05W
09/01/2007 CHATHAM GA PUBLIC

PUBLIC REPORTED 1.5 FT OF STANDING WATER AT AN UNDERPASS.
ALSO A MAJOR ROAD IN TOWN IS CLOSED DUE TO HIGH WATER. IT
IS REPORTED IMPASSABLE BY CAR.

JRL

DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 011630
SWODY1
SPC AC 011627

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1127 AM CDT SAT SEP 01 2007

VALID 011630Z - 021200Z

..NO SVR TSTM AREAS FORECAST...

..ERN ND/NWRN MN...
WATER VAPOR IMAGERY SHOWS A STRONG SHORT WAVE TROUGH MOVING EWD
ACROSS SRN SASKATCHEWAN AND EXTREME ERN MT...WITH A VORTICITY MAX
IMMEDIATELY IN THE WAKE OF THE SHORT WAVE MOVING EWD ACROSS SRN
ALBERTA. THE SYSTEMS ARE FORECAST TO PROGRESS EWD ACROSS THE SRN
CANADIAN PRAIRIE PROVINCES THIS AFTERNOON AND CONTINUING INTO NWRN
ONTARIO TONIGHT. AT THE SURFACE...ONE LOW ASSOCIATED WITH THE SHORT
WAVE TROUGH IS OVER MANITOBA WITH A SURFACE TOUGH EXTENDING SWD INTO
THE CENTRAL HIGH PLAINS. A SECOND LOW IS OVER SASKATCHEWAN WITH A
COLD FRONT TRAILING SWWD FROM THE LOW. THESE SYSTEMS WILL ALSO MOVE
EWD WITH THE COLD FRONT EVENTUALLY MERGING/OVERTAKING THE SURFACE
TROUGH OVER ND AND NWRN MN TONIGHT.

12Z AREA SOUNDINGS SHOW A PRONOUNCED CAP/ELEVATED MIXED LAYER BASED
AROUND 900-850 MB...WITH NEAR DRY ADIABATIC LAPSE RATES EXTENDING
FROM THE INVERSION INTO THE MID LEVELS. ELEVATED CONVECTION HAS
BEEN MOVING EWD ACROSS WRN/CENTRAL ND THIS MORNING...BUT IT APPEARS
THAT SURFACE TEMPERATURES WILL NEED TO REACH 95-100F IN ORDER TO
ELIMINATE THE CAP THROUGH DIABATIC HEATING PROCESSES. MODEL
GUIDANCE INDICATES THAT A WEAKENING CAP IS LIKELY TO PERSIST THROUGH
THE AFTERNOON /ESPECIALLY GIVEN THE CLOUD COVER MOVING EWD ACROSS
ND/ WITH A LOW PROBABILITY OF SURFACE-BASED CONVECTION DEVELOPING.
LOW LEVEL CONVERGENCE MAY INCREASE THIS EVENING ACROSS NERN ND/NWRN
MN AS THE COLD FRONT MOVES ACROSS THE AREA WHICH MAY INCREASE THE
POTENTIAL FOR ISOLATED SURFACE-BASED THUNDERSTORMS TO DEVELOP. THE
SRN EDGE OF THE STRONGER WESTERLY FLOW ALOFT IS FORECAST TO EXTEND
ACROSS NRN PARTS OF ND AND MN. THIS WILL CONTRIBUTE TO SUFFICIENT
DEEP LAYER SHEAR WHICH WILL ENHANCE THE INTENSITY OF ANY PERSISTENT
UPDRAFTS THAT CAN DEVELOP. STRONGER CELLS WILL HAVE POTENTIAL TO
PRODUCE HAIL AND STRONG WIND GUSTS...BUT WILL MAINTAIN LOW SEVERE
PROBABILITY DUE TO ANTICIPATED LOW COVERAGE OF STORMS.

..SWRN NM INTO CENTRAL/SRN AZ...
12Z SOUNDINGS SHOW INVERTED-V PROFILES IN PLACE WITH A DEEP
SURFACE-BASED MIXED LAYER AND AMPLE MID LEVEL MOISTURE.
HOWEVER...WATER VAPOR IMAGERY INDICATES MID/UPPER LEVEL DRYING
MOVING SWD ACROSS NRN/CENTRAL AZ AND NWRN NM...AND THE PROGRESSION
OF THE DRY INTRUSION MAY LIMIT THE COVERAGE OF STORMS DEVELOPING
OVER THE HIGHER TERRAIN OF CENTRAL AZ INTO NWRN NM. ISOLATED STRONG
STORMS WILL STILL BE POSSIBLE...ESPECIALLY ALONG AND SOUTH OF THE
WATER VAPOR MOISTURE DISCONTINUITY...AND THERMODYNAMIC PROFILES
INDICATE POTENTIAL FOR WET MICROBURSTS TO DEVELOP. WEAK WINDS ALOFT
SUGGEST PULSE STORMS ARE MOST LIKELY TO DEVELOP WITH MINIMAL STORM
PROPAGATION WHICH WILL LIMIT OVERALL SEVERE THREAT.

.WEISS/JEWELL.. 09/01/2007

KCHS [011628]: Preliminary Local Storm Report

NWUS52 KCHS 011628
LSRCHS

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
1228 PM EDT SAT SEP 01 2007

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

1159 AM FLOOD 6 ESE PORT ROYAL 32.35N 80.60W
09/01/2007 BEAUFORT SC LAW ENFORCEMENT

ON ST.HELENA ISLAND 2 FEET STANDING WATER ON HWY 21 THE
SEA ISLAND PARKWAY NOW CLOSED. SEASIDE RD ALSO CLOSED.

SEK

KCHS [011622]: Preliminary Local Storm Report

NWUS52 KCHS 011622
LSRCHS

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
1222 PM EDT SAT SEP 01 2007

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

1159 AM FLOOD HILTON HEAD ISLAND 32.22N 80.75W
09/01/2007 BEAUFORT SC LAW ENFORCEMENT

2 TO 3 FEET STANDING WATER ON HWY 278 NOW CLOSED NEAR
WEXFORD VILLAGE. HOPE AVE AND LAGOON RD ALSO CLOSED.

SEK

KCHS [011619]: Preliminary Local Storm Report

NWUS52 KCHS 011619
LSRCHS

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
1219 PM EDT SAT SEP 01 2007

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

1159 AM FLOOD BEAUFORT 32.43N 80.67W
09/01/2007 BEAUFORT SC LAW ENFORCEMENT

COUNTY EMERGENCY OPERATIONS CENTER REPORTS MOST OF
DOWNTOWN BEAUFORT FLOODED.

SEK

KCHS [011348]: Preliminary Local Storm Report

NWUS52 KCHS 011348
LSRCHS

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
947 AM EDT SAT SEP 01 2007

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

0925 AM FLOOD WILMINGTON ISLAND 32.01N 80.98W
09/01/2007 CHATHAM GA EMERGENCY MNGR

HIGH WATER ON PROPERTY ON OMELER LOOP.

KJAX [011312]: Preliminary Local Storm Report

NWUS52 KJAX 011312
LSRJAX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
912 AM EDT SAT SEP 01 2007

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

0900 AM FLOOD 10 SE HAZLEHURST 31.76N 82.48W
09/01/2007 APPLING GA EMERGENCY MNGR

FLOODING ALONG HIWAY 341W BETWEEN HAZLEHURST AND GRAHAM.
WATER OVER THE ROAD COVERING ALL 4 LANES.

BKERNS

DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 011253
SWODY1
SPC AC 011250

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0750 AM CDT SAT SEP 01 2007

VALID 011300Z - 021200Z

..NO SVR TSTM AREAS FORECAST...

..DAKOTAS/MN THIS AFTERNOON INTO TONIGHT...
A MID LEVEL SHORTWAVE TROUGH OVER NW MT AND SRN ALBERTA WILL CREST
THE MEAN RIDGE OVER THE NRN ROCKIES AND THEN AMPLIFY BY TONIGHT OVER
MANITOBA AND WRN ONTARIO. AN ASSOCIATED SURFACE CYCLONE IS FORECAST
TO PROGRESS EWD FROM SRN SASK AND DEEPEN BY TONIGHT IN WRN ONTARIO
IN ADVANCE OF THE MID LEVEL TROUGH. A REMNANT LEE TROUGH WILL MOVE
EWD INTO THE DAKOTAS THIS AFTERNOON TO THE S OF THE SURFACE
LOW...AND THIS TROUGH WILL BE OVERTAKEN BY A SURFACE COLD FRONT
ACROSS THE DAKOTAS/NW MN. THE SURFACE TROUGH AND COLD FRONT WILL BE
THE PRIMARY FOCUS FOR ANY DEEP CONVECTION THAT DEVELOPS.

SOME MID LEVEL CONVECTION IS ONGOING OVER WRN ND WITHIN A REMNANT
MONSOONAL MOISTURE PLUME...IN ADVANCE OF AN INITIAL/WEAK SHORTWAVE
TROUGH. OTHERWISE...A PLUME OF NEARLY DRY ADIABATIC MID LEVEL LAPSE
RATES IS OVERSPREADING THE NRN PLAINS PER 12Z SOUNDINGS. THE BASE
OF THE ELEVATED MIXED LAYER IS QUITE WARM...WITH AFTERNOON SURFACE
TEMPERATURES OF 95-100 F NECESSARY TO MIX THROUGH THE INVERSION AND
MINIMIZE CONVECTIVE INHIBITION. ADDITIONALLY...SURFACE RIDGING FROM
NEW ENGLAND TO THE SRN PLAINS HAS CUT OFF THE PRIMARY MOISTURE
SOURCE REGION...LEAVING ONLY A SHALLOW MOIST BOUNDARY LAYER WITH
LOW-MID 60S DEWPOINTS ACROSS THE DAKOTAS. IT APPEARS THAT THE CAP
WILL BE SUFFICIENTLY STRONG TO KEEP STORM COVERAGE RATHER
SPARSE...GIVEN THAT THE STRONGER LARGE SCALE FORCING FOR ASCENT WILL
REMAIN N OF THE CANADIAN BORDER. IF THUNDERSTORMS DO FORM ALONG THE
SURFACE TROUGH/FRONT LATE THIS EVENING /MOST PROBABLY ACROSS NW
MN/...GUSTY WINDS AND SOME HAIL WILL BE POSSIBLE.

..RIM COUNTRY OF AZ INTO WRN NM THIS AFTERNOON/EVENING...
SCATTERED THUNDERSTORM DEVELOPMENT IS EXPECTED THIS AFTERNOON OVER
THE HIGHER TERRAIN OVER CENTRAL/WRN NM INTO THE RIM COUNTRY OF AZ.
WEAK NELY FLOW AROUND THE SRN GREAT BASIN HIGH WILL HELP STORMS MOVE
SWWD OFF THE HIGH TERRAIN TOWARD THE LOWER DESERTS IN AZ...WHERE THE
MODIFIED 12Z TUS SOUNDING SUGGESTS SOME POTENTIAL FOR GUSTY OUTFLOW
WINDS THIS AFTERNOON.

..GULF COAST AND SE ATLANTIC STATES...
AN UPPER LEVEL CYCLONIC SHEAR AXIS...WITH EMBEDDED SMALLER SCALE
VORTICITY MAXIMA...WILL PERSIST FROM THE NW GULF COAST TO THE SE
ATLANTIC COAST...ALONG WITH A DIFFUSE SURFACE TROUGH. THESE
FEATURES...ALONG WITH PW IN ADVANCE OF 2 INCHES AND DAYTIME HEATING
OF THE MOIST AIR MASS...WILL PROMOTE THE DEVELOPMENT OF
SCATTERED-NUMEROUS THUNDERSTORMS.

.THOMPSON/BRIGHT.. 09/01/2007

DAY48SVR: Nws Storm Prediction Center Norman Ok

ACUS48 KWNS 010851
SWOD48
SPC AC 010851

DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0351 AM CDT SAT SEP 01 2007

VALID 041200Z - 091200Z

..DISCUSSION...
00Z GFS HAS BECOME MORE IN LINE WITH THE RECENT FEW RUNS OF THE
ECMWF IN DEVELOPING A PROGRESSIVE SPLIT FLOW REGIME ACROSS THE NRN
TIER OF THE COUNTRY NEXT WEEK. THE UPR TROUGH SITUATED ACROSS THE
NRN PACIFIC BASIN WILL BODILY MOVE EWD INTO THE NWRN STATES BY
TUESDAY...THEN SHEAR EWD ACROSS THE NRN/CNTRL PLAINS WED...THU AND
FRI...THOUGH THE ULTIMATE RATE-OF-WEAKENING IS STILL IN QUESTION.

IN THE TROUGH/S WAKE...A COLD FRONT WILL MOVE SEWD INTO THE
GRTLKS...UPR MS VLY...AND THE NRN/CNTRL PLAINS DURING THE MID-LATTER
PART OF NEXT WEEK. MOISTURE RESIDING ACROSS THE FAR S PLAINS
CURRENTLY SHOULD SURGE NWD AHEAD OF THIS FRONT BENEATH A FORMIDABLE
ELEVATED MIXED LAYER. TSTMS WILL PROBABLY DEVELOP IN ASSOCIATION
WITH THE FRONT...THOUGH GIVEN THE WEAKENING TENDENCY OF THE UPR
SYSTEM AND THE POTENTIAL INHIBITION LAYER...SET-UP APPEARS MORE
FAVORABLE FOR POST-FRONTAL STG STORMS WITH HEAVY RAINFALL RATHER
THAN A WIDESPREAD SEVERE WEATHER EPISODE...PARTICULARLY WITH VARIOUS
TUTT LOW SIGNATURES/POTENTIAL REMNANT TROPICAL CYCLONES ENTERING THE
PICTURE FROM THE SOUTH AND SOUTHWEST PARTS OF THE CONUS.

.RACY.. 09/01/2007

KRNK [010755]: Preliminary Local Storm Report

NWUS51 KRNK 010755
LSRRNK

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
355 AM EDT SAT SEP 01 2007

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

0240 AM FLASH FLOOD 9 NE MARTINSVILLE AIRPO 36.72N 79.90W
09/01/2007 HENRY VA LAW ENFORCEMENT

CAR STALLED DRIVING THROUGH HIGH WATER ON SMITH LAKE
ROAD.

0140 AM FLASH FLOOD 9 NE MARTINSVILLE AIRPO 36.72N 79.90W
09/01/2007 HENRY VA LAW ENFORCEMENT

BUILDINGS FLOODED ON MEMORIAL BLVD. 6 RESIDENCES
RELOCATED TO MOTEL.

RSTONEFI

DAY3SVR: Nws Storm Prediction Center Norman Ok

ACUS03 KWNS 010728
SWODY3
SPC AC 010726

DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0226 AM CDT SAT SEP 01 2007

VALID 031200Z - 041200Z

..NO SVR TSTM AREAS FORECAST...

..UPR GRTLKS REGION...
PROGRESSIVE WLY FLOW REGIME WILL CONTINUE ACROSS THE NRN TIER OF THE
COUNTRY ON MONDAY WITH A BROAD RIDGE IN PLACE ACROSS MOST OF THE
CONUS. A PARADE OF MID-LEVEL DISTURBANCES WILL MOVE ACROSS SRN
CANADA WITH A FRONT VACILLATING ACROSS THE GRTLKS REGION AND NRN
PLAINS INTO EARLY NEXT WEEK.

ELEVATED TSTMS MAY BE ONGOING MONDAY MORNING ACROSS PARTS OF ERN
ND/NWRN MN WHERE WARM/MOIST ADVECTION PROFILES WILL BE ENHANCED
ALONG/N OF A RETREATING FRONT ON THE NOSE OF SWLY LLJ. THIS
ACTIVITY WILL TRANSLATE SEWD DURING THE DAY AND WEAKEN. TSTMS WILL
LIKELY DEVELOP AGAIN LATE MONDAY NIGHT FROM NRN MN INTO NRN WI AND
UPR MI/LK SUPERIOR REGION AS THE SWLY LLJ ACCELERATES AGAIN. STEEP
MID-TROPOSPHERIC LAPSE RATES AND CLOUD-BEARING SHEAR AOA 60 KTS
SUGGESTS POTENTIAL FOR SVR HAIL WITH ISOLD STORMS MONDAY NIGHT.

.RACY.. 09/01/2007

KOTX [010638]: Preliminary Local Storm Report...corrected

NWUS56 KOTX 010638
LSROTX

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE SPOKANE WA
1138 PM PDT FRI AUG 31 2007

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

0615 PM HAIL 6 S RITZVILLE 47.04N 118.38W
08/31/2007 E0.25 INCH ADAMS WA TRAINED SPOTTER

3SW RALSTON 25MPH GUSTS LASTED JUST A FEW MINUTES

0625 PM HAIL 7 NE SPOKANE 47.74N 117.31W
08/31/2007 E0.75 INCH SPOKANE WA TRAINED SPOTTER

HEAVY RAIN GUSTY WINDS

0628 PM TSTM WND GST 4 NW WINONA 46.98N 117.85W
08/31/2007 E0.00 MPH WHITMAN WA TRAINED SPOTTER

45 MPH WIND GUSTS

0628 PM TSTM WND DMG PULLMAN 46.73N 117.16W
08/31/2007 WHITMAN WA LAW ENFORCEMENT

TREES DOWN AND POWERS LINES DOWN AND TELEPHONE POLE FIRE
AND RESULTING POWER OUTAGES

0628 PM LIGHTNING PALOUSE 46.91N 117.07W
08/31/2007 WHITMAN WA LAW ENFORCEMENT

POWER POLE FIRE

0628 PM NON-TSTM WND DMG ALBION 46.79N 117.25W
08/31/2007 WHITMAN WA LAW ENFORCEMENT

POWER POLE BLOWN DOWN.

0630 PM TSTM WND DMG CLARKSTON 46.42N 117.05W
08/31/2007 ASOTIN WA LAW ENFORCEMENT

POWER LINES DOWN BLOCKING STREET

0700 PM HAIL 3 S SPOKANE 47.63N 117.41W
08/31/2007 E0.88 INCH SPOKANE WA NWS EMPLOYEE

TREE LIMBS BLOWN DOWN

0712 PM TSTM WND DMG 4 ESE TEKOA 47.21N 117.00W
08/31/2007 BENEWAH ID TRAINED SPOTTER

TREE LIMBS DOWN AND HEAVY RAIN

0725 PM HAIL 3 S SPOKANE 47.63N 117.41W
08/31/2007 E0.88 INCH SPOKANE WA TRAINED SPOTTER

FEW QUARTER HAIL POWER OUTAGE. HAM COORDINATOR

0725 PM TSTM WND DMG 5 NNE MOSCOW 46.79N 116.96W
08/31/2007 LATAH ID TRAINED SPOTTER

45MPH GUSTS TREE LIMBS DOWN 1/4 INCH RAIN

0725 PM HAIL 5 SE SPOKANE 47.62N 117.36W
08/31/2007 E0.50 INCH SPOKANE WA TRAINED SPOTTER

WIND GUSTS TO 35 MPH

0725 PM TSTM WND DMG N PALOUSE 46.91N 117.08W
08/31/2007 WHITMAN WA TRAINED SPOTTER

MEASURED 49 MPH. LOST SOME SHINGLES OFF ROOF.

0730 PM HAIL 3 S SPOKANE 47.63N 117.41W
08/31/2007 E1.00 INCH SPOKANE WA NWS EMPLOYEE

QUARTER SIZE HAIL WITH 30 MPH WINDS. FRUIT STAND TARP
BLOWN UP OVER POWER LINES.

0735 PM FLOOD COEUR D'ALENE 47.70N 116.79W
08/31/2007 KOOTENAI ID NWS EMPLOYEE

URBAN FLOODING CITY INTERSECTIONS WELL PONDED. WINDS
GUSTING 30MPH.

0740 PM TSTM WND DMG AIRWAY HEIGHTS 47.64N 117.58W
08/31/2007 SPOKANE WA BROADCAST MEDIA

TREE BLOWN OVER ONTO HOUSE TRAILER. POWER OUTAGES
AFFECTING 3200 ON THE PALOUSE AND 4400 SILVER VALLEY IN
IDAHO.

0740 PM TSTM WND DMG KOOTENAI 48.31N 116.52W
08/31/2007 BONNER ID LAW ENFORCEMENT

POWER LINES DOWN WITH POWER OUTAGES AROUND KOOTENAI
COUNTY. TREES DOWN.

0745 PM TSTM WND DMG 3 S SPOKANE 47.63N 117.41W
08/31/2007 SPOKANE WA BROADCAST MEDIA

AT 31ST AND BERNARD TREES SNAPPED OFF. KXLY.

0810 PM TSTM WND DMG 3 S SANDPOINT 48.24N 116.56W
08/31/2007 BONNER ID LAW ENFORCEMENT

NUMEROUS TREES AND POWER LINES DOWN

KOTX [010623]: Preliminary Local Storm Report...corrected

NWUS56 KOTX 010623
LSROTX

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE SPOKANE WA
1122 PM PDT FRI AUG 31 2007

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

0445 PM HAIL 3 S SPOKANE 47.63N 117.41W
08/31/2007 E0.88 INCH SPOKANE WA NWS EMPLOYEE

TREE LIMBS BLOWN DOWN

0615 PM HAIL 6 S RITZVILLE 47.04N 118.38W
08/31/2007 E0.25 INCH ADAMS WA TRAINED SPOTTER

3SW RALSTON 25MPH GUSTS LASTED JUST A FEW MINUTES

0625 PM HAIL 7 NE SPOKANE 47.74N 117.31W
08/31/2007 E0.75 INCH SPOKANE WA TRAINED SPOTTER

HEAVY RAIN GUSTY WINDS

0628 PM NON-TSTM WND DMG ALBION 46.79N 117.25W
08/31/2007 WHITMAN WA LAW ENFORCEMENT

POWER POLE BLOWN DOWN.

0628 PM LIGHTNING PALOUSE 46.91N 117.07W
08/31/2007 WHITMAN WA LAW ENFORCEMENT

POWER POLE FIRE

0628 PM TSTM WND DMG PULLMAN 46.73N 117.16W
08/31/2007 WHITMAN WA LAW ENFORCEMENT

TREES DOWN AND POWERS LINES DOWN AND TELEPHONE POLE FIRE
AND RESULTING POWER OUTAGES

0628 PM TSTM WND GST 4 NW WINONA 46.98N 117.85W
08/31/2007 E0.00 MPH WHITMAN WA TRAINED SPOTTER

45 MPH WIND GUSTS

0630 PM TSTM WND DMG CLARKSTON 46.42N 117.05W
08/31/2007 ASOTIN WA LAW ENFORCEMENT

POWER LINES DOWN BLOCKING STREET

0712 PM TSTM WND DMG 4 ESE TEKOA 47.21N 117.00W
08/31/2007 BENEWAH ID TRAINED SPOTTER

TREE LIMBS DOWN AND HEAVY RAIN

0725 PM TSTM WND DMG N PALOUSE 46.91N 117.08W
08/31/2007 WHITMAN WA TRAINED SPOTTER

MEASURED 49 MPH. LOST SOME SHINGLES OFF ROOF.

0725 PM HAIL 5 SE SPOKANE 47.62N 117.36W
08/31/2007 E0.50 INCH SPOKANE WA TRAINED SPOTTER

WIND GUSTS TO 35 MPH

0725 PM TSTM WND DMG 5 NNE MOSCOW 46.79N 116.96W
08/31/2007 LATAH ID TRAINED SPOTTER

45MPH GUSTS TREE LIMBS DOWN 1/4 INCH RAIN

0725 PM HAIL 3 S SPOKANE 47.63N 117.41W
08/31/2007 E0.88 INCH SPOKANE WA TRAINED SPOTTER

FEW QUARTER HAIL POWER OUTAGE. HAM COORDINATOR

0730 PM HAIL 3 S SPOKANE 47.63N 117.41W
08/31/2007 E1.00 INCH SPOKANE WA NWS EMPLOYEE

QUARTER SIZE HAIL WITH 30 MPH WINDS. FRUIT STAND TARP
BLOWN UP OVER POWER LINES.

0735 PM FLOOD COEUR D'ALENE 47.70N 116.79W
08/31/2007 KOOTENAI ID NWS EMPLOYEE

URBAN FLOODING CITY INTERSECTIONS WELL PONDED. WINDS
GUSTING 30MPH.

0740 PM TSTM WND DMG KOOTENAI 48.31N 116.52W
08/31/2007 BONNER ID LAW ENFORCEMENT

POWER LINES DOWN WITH POWER OUTAGES AROUND KOOTENAI
COUNTY. TREES DOWN.

0810 PM TSTM WND DMG 3 S SANDPOINT 48.24N 116.56W
08/31/2007 BONNER ID LAW ENFORCEMENT

NUMEROUS TREES AND POWER LINES DOWN

1114 PM TSTM WND DMG 3 S SPOKANE 47.63N 117.41W
08/31/2007 SPOKANE WA BROADCAST MEDIA

AT 31ST AND BERNARD TREES SNAPPED OFF. KXLY.

1114 PM TSTM WND DMG AIRWAY HEIGHTS 47.64N 117.58W
08/31/2007 SPOKANE WA BROADCAST MEDIA

TREE BLOWN OVER ONTO HOUSE TRAILER. POWER OUTAGES
AFFECTING 3200 ON THE PALOUSE AND 4400 SILVER VALLEY IN
IDAHO.

KOTX [010550]: Preliminary Local Storm Report...corrected

NWUS56 KOTX 010550
LSROTX

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE SPOKANE WA
1050 PM PDT FRI AUG 31 2007

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

0615 PM HAIL 6 S RITZVILLE 47.04N 118.38W
08/31/2007 E0.25 INCH ADAMS WA TRAINED SPOTTER

3SW RALSTON 25MPH GUSTS LASTED JUST A FEW MINUTES

0625 PM HAIL 7 NE SPOKANE 47.74N 117.31W
08/31/2007 E0.75 INCH SPOKANE WA TRAINED SPOTTER

HEAVY RAIN GUSTY WINDS

0628 PM TSTM WND GST 4 NW WINONA 46.98N 117.85W
08/31/2007 E0.00 MPH WHITMAN WA TRAINED SPOTTER

45 MPH WIND GUSTS

0628 PM TSTM WND DMG PULLMAN 46.73N 117.16W
08/31/2007 WHITMAN WA LAW ENFORCEMENT

TREES DOWN AND POWERS LINES DOWN AND TELEPHONE POLE FIRE
AND RESULTING POWER OUTAGES

0628 PM LIGHTNING PALOUSE 46.91N 117.07W
08/31/2007 WHITMAN WA LAW ENFORCEMENT

POWER POLE FIRE

0628 PM NON-TSTM WND DMG ALBION 46.79N 117.25W
08/31/2007 WHITMAN WA LAW ENFORCEMENT

POWER POLE BLOWN DOWN.

0630 PM TSTM WND DMG CLARKSTON 46.42N 117.05W
08/31/2007 ASOTIN WA LAW ENFORCEMENT

POWER LINES DOWN BLOCKING STREET

0712 PM TSTM WND DMG 4 ESE TEKOA 47.21N 117.00W
08/31/2007 BENEWAH ID TRAINED SPOTTER

TREE LIMBS DOWN AND HEAVY RAIN

0725 PM HAIL 3 S SPOKANE 47.63N 117.41W
08/31/2007 E0.88 INCH SPOKANE WA TRAINED SPOTTER

FEW QUARTER HAIL POWER OUTAGE. HAM COORDINATOR

0725 PM TSTM WND DMG 5 NNE MOSCOW 46.79N 116.96W
08/31/2007 LATAH ID TRAINED SPOTTER

45MPH GUSTS TREE LIMBS DOWN 1/4 INCH RAIN

0725 PM HAIL 5 SE SPOKANE 47.62N 117.36W
08/31/2007 E0.50 INCH SPOKANE WA TRAINED SPOTTER

WIND GUSTS TO 35 MPH

0725 PM TSTM WND DMG N PALOUSE 46.91N 117.08W
08/31/2007 WHITMAN WA TRAINED SPOTTER

MEASURED 49 MPH. LOST SOME SHINGLES OFF ROOF.

0735 PM FLOOD COEUR D'ALENE 47.70N 116.79W
08/31/2007 KOOTENAI ID NWS EMPLOYEE

URBAN FLOODING CITY INTERSECTIONS WELL PONDED. WINDS
GUSTING 30MPH.

0740 PM TSTM WND DMG KOOTENAI 48.31N 116.52W
08/31/2007 BONNER ID LAW ENFORCEMENT

POWER LINES DOWN WITH POWER OUTAGES AROUND KOOTENAI
COUNTY. TREES DOWN.

0810 PM TSTM WND DMG 3 S SANDPOINT 48.24N 116.56W
08/31/2007 BONNER ID LAW ENFORCEMENT

NUMEROUS TREES AND POWER LINES DOWN

0730 PM HAIL 3 S SPOKANE 47.63N 117.41W
08/31/2007 E1.00 INCH SPOKANE WA NWS EMPLOYEE

QUARTER SIZE HAIL WITH 30 MPH WINDS. FRUIT STAND TARP
BLOWN UP OVER POWER LINES.

DAY2SVR: Nws Storm Prediction Center Norman Ok

ACUS02 KWNS 010544
SWODY2
SPC AC 010543

DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1243 AM CDT SAT SEP 01 2007

VALID 021200Z - 031200Z

..NO SVR TSTM AREAS FORECAST...

..SWRN DESERTS...
UPR HIGH WILL REMAIN IN POSITION OVER SRN NV ON SUNDAY WITH AN UPR
LOW MIGRATING WWD OVER W TX. MID-UPR TROPOSPHERIC FLOW WILL BE
ENHANCED BETWEEN THESE TWO FEATURES WITH CONSIDERABLE AMOUNTS OF DRY
AIR ADVECTING SWWD FROM THE PLAINS INTO THE SRN ROCKIES. THUS...
DESPITE A FAVORABLE KINEMATIC SVR PATTERN ACROSS NM/AZ...AN OBVIOUS
LIMITING FACTOR WILL BE THE LESS-THAN-IMPRESSIVE PRECIPITABLE WATER
VALUES. THIS SITUATION WILL LIKELY LIMIT TSTMS TO THE HIGHER
TERRAIN WITH A FEW STORMS MIGRATING INTO THE LWR DESERTS AND
WEAKENING.

..FAR NRN PLAINS...
LEAD MID-LEVEL SHORTWAVE TROUGH...NOW CROSSING THE NRN ROCKIES...
WILL QUICKLY TRANSLATE TO ONTARIO BY SUNDAY. FOLLOWING THIS
IMPULSE...A COLD FRONT WILL SETTLE SWD INTO THE CNTRL GRTLKS...UPR
MS VLY AND CNTRL PLAINS. TAIL-END OF THIS FRONT WILL LIKELY
REDEVELOP NWD AS A WARM FRONT LATE SUNDAY NIGHT AHEAD OF THE NEXT IN
A SERIES OF NRN STREAM WAVES. MODEST SLY LLJ WILL SUPPORT
INCREASING WARM/MOIST ADVECTION PROFILES ACROSS THE RED RVR VLY OF
THE NORTH WITH LATE NIGHT CONVECTION POSSIBLE. MODELS HAVE TRENDED
TOWARD LESS ELEVATED INSTABILITY AND WEAKER LARGE SCALE SUPPORT AND
ORGANIZED SVR WEATHER IS NO LONGER EXPECTED.

.RACY.. 09/01/2007

DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 010539
SWODY1
SPC AC 010536

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1236 AM CDT SAT SEP 01 2007

VALID 011200Z - 021200Z

..NO SVR TSTM AREAS FORECAST...

..SYNOPSIS...
SYNOPTIC PATTERN ALOFT WILL FEATURE STRONG RIDGING FROM 4-CORNERS
AREA HIGH NEWD ACROSS UPPER MS VALLEY AND UPPER GREAT LAKES...WITH
ANOTHER RIDGE NWD ACROSS NRN ROCKIES. SHORTWAVE TROUGH -- NOW
EVIDENT IN MOISTURE CHANNEL IMAGERY INVOF WRN ID BORDER...IS FCST TO
EJECT NEWD ACROSS NRN ROCKIES BY START OF PERIOD...THEN EWD THROUGH
LARGER SCALE RIDGE AND ACROSS SASK/MB. ASSOCIATED COLD FRONT WILL
MOVE ESEWD ACROSS DAKOTAS AND SSEWD ACROSS ERN WY AND NWRN NEB. BY
2/12Z...FRONT SHOULD LIE NEAR LINE FROM INL-MHE-CDR.

ELSEWHERE...NUMEROUS SMALL MID/UPPER LEVEL VORTICITY MAXIMA AND
CYCLONIC SHEAR ZONES...SOME OF WHICH WILL HAVE SFC
COUNTERPARTS...WILL PERSIST ACROSS MOST OF GULF COAST REGION IN
SUPPORT OF GEN THUNDER POTENTIAL.

..NRN PLAINS/UPPER MIDWEST...
VERY CONDITIONAL SVR POTENTIAL EVIDENT DURING LATE AFTERNOON INVOF
FRONT...SHIFTING OR REDEVELOPING FARTHER E OVER NRN MN DURING
OVERNIGHT HOURS NEAR MOISTENING/SWLY LLJ. ANY TSTMS THAT DO DEVELOP
DURING AFTERNOON INVOF FRONT MAY PRODUCE HAIL AND STG-SVR
GUSTS...WITH HAIL ALSO POSSIBLE FROM ANY CLUSTERED/OVERNIGHT
ACTIVITY FARTHER E.

FAVORABLE FACTORS FOR CONVECTIVE DEVELOPMENT WILL INCLUDE
INCREASING/PREFRONTAL BOUNDARY LAYER MOISTURE...STG SFC
HEATING...AND SOME LIFT ALONG FRONT. FRONTAL CONVERGENCE WILL BE
LIMITED BY PRESENCE OF SWLY FLOW IN WARM SECTOR...WITH STRONGEST
ISALLOBARIC FORCING REMAINING OVER CANADA. MOIST ADVECTION AND
EVAPOTRANSPIRATION WILL CONTRIBUTE TO SFC DEW POINTS COMMONLY
MID-UPPER 60S F. THIS WILL COMBINE WITH STG SFC HEATING AND STEEP
MIDLEVEL LAPSE RATES TO SUPPORT MLCAPES AROUND 2000 J/KG ACROSS
CENTRAL/ERN DAKOTAS. THOSE LARGE LAPSE RATES WILL BE ASSOCIATED
WITH STRONG ELEVATED MIXED LAYER THAT WILL BE ROOTED IN SUBSTANTIAL
CAP. UPSTREAM SOUNDINGS...UPPER AIR ANALYSES AND MODEL FCST
SOUNDINGS INDICATE STRONG CAPPING WILL PERSIST FOR MUCH OF
AFTERNOON...AND MAY PREVENT DEVELOPMENT ALTOGETHER S OF CANADIAN
BORDER. ALTHOUGH SFC FLOW WILL BE SWLY...ENOUGH VEERING WITH HEIGHT
IS EXPECTED TO YIELD CURVED LOW LEVEL HODOGRAPHS. DEEP-LAYER BULK
SHEAR SHOULD BE MRGL -- WITH EFFECTIVE SHEARS PROGGED TO REMAIN AOB
40 KT MOST AREAS.

..AZ...
WIDELY SCATTERED TO SCATTERED TSTMS ARE FCST TO DEVELOP PRINCIPALLY
DURING MID-LATE AFTERNOON AND OVER HIGHER TERRAIN OF CENTRAL/ERN AZ.
THIS ACTIVITY WILL BE EMBEDDED WITHIN DEEP BUT NOT PARTICULARLY
STRONG LAYER OF ELY/NELY WINDS ALOFT...AROUND SRN PORTION OF
ANTICYCLONE. ACTIVITY SHOULD MOVE WWD/SWWD ACROSS DESERTS/VALLEYS
DURING LATE AFTERNOON...ATOP DEEP/WELL-MIXED BOUNDARY LAYERS
SUITABLE FOR MAINTAINING STG/POTENTIALLY DAMAGING GUSTS TO SFC.
CONVECTION SHOULD DIMINISH MARKEDLY AFTER APPROXIMATELY 03Z...WHEN
COMBINATION OF OUTFLOWS AND DIABATIC COOLING SUBSTANTIALLY
STABILIZES AIR MASS.

.EDWARDS/DARROW.. 09/01/2007

KPDT [010527]: Preliminary Local Storm Report...summary

NWUS56 KPDT 010527
LSRPDT

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE PENDLETON OR
1026 PM PDT FRI AUG 31 2007