Flash Flood Warning 38, NWS Greenville-Spartanburg, SC

000 
WGUS72 KGSP 161751
FFSGSP

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
151 PM EDT SUN AUG 16 2009

NCC119-162100-
/O.CON.KGSP.FF.W.0038.000000T0000Z-090816T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MECKLENBURG NC-
151 PM EDT SUN AUG 16 2009

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 500 PM EDT FOR
MECKLENBURG COUNTY...

AT 145 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A CLUSTER OF SHOWERS AND THUNDERSTORMS PRODUCING FLASH 
FLOODING OVER THE CHARLOTTE METRO AREA. AT 145 PM...AUTOMATED RAIN 
GAUGES AND RADAR RAINFALL ESTIMATES INDICATE THAT 2 TO 3 INCHES OF 
RAIN HAS FALLEN ACROSS CENTRAL MECKLENBURG COUNTY. HOURLY RAINFALL 
RATES WILL CONTINUE TO RANGE FROM 1 TO 2 INCHES THROUGH 3 
PM...LIKELY RESULTING IN FLASH FLOODING INTO THE LATE AFTERNOON. 

HEAVY RAIN IN DOWNTOWN CHARLOTTE WILL CAUSE RAPID RISES ON LITTLE 
SUGAR CREEK. FLOODING IN LOW LYING AREAS NEAR THE CREEK ESPECIALLY 
ALONG SOUTH KING DRIVE...MEDICAL CENTER DRIVE AND BLYTHE AVENUE IS 
POSSIBLE...MAINLY IN THE PARKING AREAS AT THE HOSPITALS. IN 
ADDITION...FLOODING IN LOW LYING AREAS NEAR THE CREEK ESPECIALLY 
ALONG CINDERELLA AND HIDDEN VALLEY ROADS WILL BE LIKELY. OTHER 
AREAS...ESPECIALLY ALONG LITTLE SUGAR AND BRIAR CREEKS...WILL LIKELY 
SEE FLASH FLOODING THIS AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

&&

LAT...LON 3501 8084 3511 8093 3504 8105 3515 8103
      3518 8100 3530 8100 3534 8097 3535 8092
      3537 8098 3540 8095 3551 8094 3550 8078
      3542 8075 3540 8076 3526 8065 3521 8055

$$

NED

000 
WGUS72 KGSP 161902
FFSGSP

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
302 PM EDT SUN AUG 16 2009

NCC119-162100-
/O.CON.KGSP.FF.W.0038.000000T0000Z-090816T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MECKLENBURG NC-
302 PM EDT SUN AUG 16 2009

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 500 PM EDT FOR
SOUTHERN MECKLENBURG COUNTY...

AT 300 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A CLUSTER OF THUNDERSTORMS PRODUCING FLASH FLOODING ACROSS 
PORTIONS OF THE CHARLOTTE METRO AREA. 3 TO 5 INCHES OF RAIN HAS 
FALLEN IN SOME LOCATIONS OVER THE PAST 2 HOURS...ESPECIALLY IN AREAS 
SOUTH AND SOUTHWEST OF THE CITY. HEAVY RAINFALL IS EXPECTED TO 
CONTINUE THROUGH AT LEAST 4 PM...WITH RAINFALL RATES RANGING BETWEEN 
ONE AND TWO INCHES PER HOUR. 

FLASH FLOODING IS ALREADY OCCURRING AND IS EXPECTED TO CONTINUE 
ESPECIALLY ACROSS THE LITTLE SUGAR CREEK BASIN. SPECIFIC LOCATIONS 
IN THIS AREA INCLUDE 36TH STREET...INDEPENDENCE BOULEVARD...HILLSIDE 
AVENUE...AND TYVOLA ROAD AT I-77. MOTORISTS CAN EXPECT HIGH WATER 
CONDITIONS NEAR CREEKS AND STREAMS...AS WELL AS AT UNDERPASSES AND 
POOR DRAINAGE AREAS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL 
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO 
CROSS WATER COVERED BRIDGES...DIPS...OR LOW WATER CROSSINGS. NEVER 
TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO 
ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.

&&

LAT...LON 3501 8084 3511 8093 3505 8105 3511 8103
      3513 8103 3518 8100 3530 8100 3533 8097
      3532 8071 3528 8066 3526 8065 3521 8055

$$

BSH

000 
WGUS72 KGSP 162033
FFSGSP

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
433 PM EDT SUN AUG 16 2009

NCC119-162100-
/O.CON.KGSP.FF.W.0038.000000T0000Z-090816T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MECKLENBURG NC-
433 PM EDT SUN AUG 16 2009

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 500 PM EDT FOR
SOUTHERN MECKLENBURG COUNTY...

AT 430 PM EDT...HEAVY RAIN HAD ENDED OVER THE COUNTY...THOUGH AN 
AREA OF LIGHT TO MODERATE SHOWERS PERSISTED OVER THE SOUTH SIDE OF 
THE CITY OF CHARLOTTE. LOCAL LAW ENFORCEMENT REPORTS THAT SEVERAL 
ROADS REMAIN BARRICADED ON THE SOUTH SIDE OF THE CITY...THOUGH NO 
NEW FLOOD REPORTS HAVE BEEN RECEIVED OVER THE PAST HALF HOUR.

AUTOMATED STREAM GAUGES WERE FALLING ACROSS MOST OF THE COUNTY...AND 
THE WARNING WILL BE ALLOWED TO EXPIRE AT 5 PM IF NO ADDITIONAL 
THUNDERSTORMS DEVELOP OVER THE AREA. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FLASH FLOODING IN URBAN AREAS INCLUDES FLOODING OF SMALL CREEKS AND 
STREAMS...HIGHWAYS...STREETS AND UNDERPASSES AS WELL AS OTHER 
DRAINAGE AREAS AND LOW LYING SPOTS.

&&

LAT...LON 3501 8084 3511 8093 3505 8105 3511 8103
      3513 8103 3518 8100 3530 8100 3533 8097
      3532 8071 3528 8066 3526 8065 3521 8055

$$
MCAVOY

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1129 AM EDT SUN AUG 16 2009

.SYNOPSIS...
A LARGE AREA OF SUBTROPICAL HIGH PRESSURE CENTERED OVER THE ATLANTIC
WILL REMAIN THE DOMINANT WEATHER FEATURE ACROSS THE FORECAST AREA
THROUGH MIDWEEK. A COLD FRONT WILL APPROACH THE REGION TOWARD THE
END OF THE WEEK.

&&

.NEAR TERM /THROUGH TONIGHT/...
TWEAKED CLOUD COVER...POPS AND TEMP/DP ACROSS THE AREA THIS AFTN TO
ACCOUNT FOR LATEST TRENDS/GUIDANCE IN CONTINUING MOIST UPSLOPE FLOW.

PREVIOUS DISCUSSION...KGSP RADAR SHOWS ISOLATED SHOWERS DEVELOPING
ACROSS THE NORTHERN PART OF THE UPSTATE AT 07Z IN AN OTHERWISE
UNPRODUCTIVE WEAK EASTERLY UPSLOPE FLOW. EXPECT THAT LOW CLOUDS AND
A FEW MORE SHOWERS WILL GRADUALLY DEVELOP FROM NOW THROUGH THE
MORNING HOURS AS MOISTURE DEEPENS AND INCREASES A BIT AT LOW LEVELS.
HIGH CLOUDS MAY PREVENT FOG FROM DEVELOPING TO THE EXTENT THAT IT
HAS IN RECENT MORNINGS. SHOWERS AND THUNDERSTORMS SHOULD GROW IN
NUMBER DURING THE MIDDLE PART OF THE DAY BUT REMAIN SCATTERED.
GENERALLY WEAK LAPSE RATES AND TALL SKINNY CAPE PROFILE WILL
HOPEFULLY KEEP MOST OF THEM FROM BECOMING SEVERE. KEPT PRECIP
CHANCES IN LINE WITH NEWEST GUIDANCE ON THE LOW END OF CHANCE ALTHO
BOTH OPERATIONAL MODELS SHOW PRECIP ACROSS MOST OF THE REGION IN THE
AFTERNOON.

THE CONVECTIVE ACTIVITY WILL GRADUALLY DIMINISH DURING THE EVENING
HOURS...BUT MAY NOT GO AWAY ENTIRELY OVERNIGHT WITH THE EASTERLY
UPSLOPE CONTINUING. SO...A SLIGHT CHANCE POP WAS KEPT ACROSS ALL BUT
THE NW PIEDMONT. ONLY MINOR CHANGES WERE MADE TO THE MIN TEMPS.

&&

.SHORT TERM /MONDAY THROUGH TUESDAY NIGHT/...
AS OF 230 AM SUNDAY...SUBTROPICAL RIDGE WILL CONTINUE TO DOMINATE
THE WEATHER ACROSS THE SOUTHEAST CONUS...AS A TROPICAL SYSTEM MOVES
INTO THE CENTRAL GULF COASTAL REGION. AT THE SFC...BERMUDA HIGH
KEEPS THE CWA IN MOIST SLY LOW LEVEL FLOW. ABOVE NORMAL CLOUD COVER
AND NEAR NORMAL TEMPS WILL BE ON TAP...WITH GENERALLY DIURNALLY
DRIVEN CONVECTION. THE MEAN FLOW BACKS FROM WLY TO SLY ON
TUESDAY...AND OVERALL GUIDANCE SHOWS WARMING MID LEVELS AND VERY
MOIST SOUNDINGS. SO I CUT BACK POP EAST OF THE MTNS TO JUST SLGT CHC
(IN LINE WITH LATEST MODEL CONSENSUS).

&&

.LONG TERM /WEDNESDAY THROUGH SATURDAY/...
AS OF 245 PM SATURDAY...GUIDANCE IN AGREEMENT ON TROPICAL REMNANTS
DISSIPATING TO OUR WEST...AS WESTERN SIDE OF BIG SUBTROPICAL RIDGE
BREAKS DOWN. LARGE UPPER TROF WILL DEEPEN AND PROPAGATE INTO THE
UPPER MIDWEST. THE 00Z GFS AND 12Z/15 ECMWF ARE IN REASONABLE
AGREEMENT ON THE TROF NOT REACHING THE APPALACHAINS UNTIL ABOUT
FRIDAY NIGHT. AN ACCOMPANYING COLD FRONT WILL PUSH ACRS THE OH/TN
VALLEYS AND POSSIBLY REACH THE NC MTNS BY SATURDAY MORNING. AS FAR
AS TS ANA IS CONCERNED...THE GFS TOTALLY KILLS THE SYSTEM BEFORE IT
REACHES THE CONUS. THE ECMWF KEEPS A SYSTEM/VORT CENTER ALL THE WAY
TO FL...BUT HAS THE LOW RECURVE INTO THE ATLANTIC SOUTH OF
CHARLESTON SC. IN ANY CASE...STILL LOOKS LIKE A VERY MOIST
ATMOSPHERE AHEAD OF THE FRONT. WITH THAT SAID...THE OVERALL TEMP/POP
TREND WITH THIS SYNOPTIC EVOLUTION IS CLOSE TO WHAT IS SHOWN IN THE
GRIDS. SO THE MEDIUM RANGE WAS NOT TOUCHED FOR THE MORNING FCST
PACKAGE.

&&

.AVIATION /16Z SUNDAY THROUGH THURSDAY/...
EXTENSIVE HIGH CLOUDS HAVE LARGELY PREVENTED WIDESPREAD FOG FROM
DEVELOPING EARLY THIS MORNING BUT AREAS OF FOG THAT DO DEVELOP MIGHT
BE SLOWER TO BURN OFF. THE MAIN ISSUE IS THE DEVELOPMENT OF AN MVFR
CEILING AS WE START TO CONVECT WITH MORNING HEATING. IT NOW APPEARS
MORE LIKELY THAT WE WILL NOT...SO OTHER THAN TEMPO...MOST TAFS KEEP
MVFR CLOUDS SCATTERED...APART FROM KAVL WHERE HIGH CLOUDS ARE
THINNER. SCATTERED SHOWERS AND A FEW THUNDERSTORMS SHOULD DEVELOP
ACROSS ALL BUT THE NW PIEDMONT TODAY...AND HAVE INCLUDED A VCSH TO
ACCOUNT FOR THIS. THE LOW CLOUDS SHOULD THIN OUT FURTHER THIS
EVENING AND WINDS WILL GO LIGHT AND VARIABLE.

AT KCLT...WIND DIRECTION IS PROBLEMATIC. EVENTUALLY THE UPSLOPE FLOW
SHOULD BECOME BETTER ESTABLISHED SO THE WIND DIRECTION WAS BROUGHT
UP FROM THE SOUTHEAST THIS AFTERNOON.

OUTLOOK...LOW LEVEL MOISTURE WILL REMAIN ABUNDANT SO LOW CLOUDS AND
FOG ARE EXPECTED EACH MORNING THROUGH MID WEEK. CEILING AND VIS WILL
ALSO BE RESTRICTED IN THE VICINITY OF ISOLATED TO SCATTERED MAINLY
AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS.

&&

.GSP WATCHES/WARNINGS/ADVISORIES...
GA...NONE.
NC...NONE.
SC...NONE.

&&

SYNOPSIS...ARK
NEAR TERM...PM/RB
SHORT TERM...ARK
LONG TERM...ARK
AVIATION...PM/RB

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
406 AM EDT SUN AUG 16 2009

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-170815-
RABUN-HABERSHAM-STEPHENS-FRANKLIN-HART-ELBERT-AVERY-ALEXANDER-
IREDELL-DAVIE-MADISON-YANCEY-MITCHELL-SWAIN-HAYWOOD-BUNCOMBE-CATAWBA-
ROWAN-GRAHAM-NORTHERN JACKSON-MACON-SOUTHERN JACKSON-TRANSYLVANIA-
HENDERSON-CLEVELAND-LINCOLN-GASTON-MECKLENBURG-CABARRUS-UNION NC-
CALDWELL MOUNTAINS-GREATER CALDWELL-BURKE MOUNTAINS-GREATER BURKE-
MCDOWELL MOUNTAINS-EASTERN MCDOWELL-RUTHERFORD MOUNTAINS-
GREATER RUTHERFORD-POLK MOUNTAINS-EASTERN POLK-OCONEE MOUNTAINS-
PICKENS MOUNTAINS-GREENVILLE MOUNTAINS-GREATER OCONEE-
GREATER PICKENS-GREATER GREENVILLE-SPARTANBURG-CHEROKEE-YORK-
ANDERSON-ABBEVILLE-LAURENS-UNION SC-CHESTER-GREENWOOD-
406 AM EDT SUN AUG 16 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST GEORGIA...PIEDMONT
NORTH CAROLINA...WESTERN NORTH CAROLINA AND UPSTATE SOUTH CAROLINA.

.DAY ONE...TODAY AND TONIGHT.

SCATTERED SHOWERS AND A FEW THUNDERSTORMS WILL DEVELOP THIS
AFTERNOON. THE GREATEST COVERAGE IS EXPECTED TO BE ACROSS THE
NORTH CAROLINA MOUNTAINS...THE UPSTATE...AND THE UPPER SAVANNAH
RIVER VALLEY. HEAVY DOWNPOURS AND CLOUD TO GROUND LIGHTNING WILL
BE THE MAIN THREATS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

NONE.

ARK