Alert archive / North Carolina / Flash Flood Warnings in 2014

Flash Flood Warning 36, NWS Greenville-Spartanburg, SC

September 13, 2014Mecklenburg County, North Carolina; York County, South Carolina

NWS Greenville-Spartanburg, SC issued this flash flood warning at Sep 13, 2014, 9:07 PM EDT for Mecklenburg County, North Carolina; York County, South Carolina. It was in force for 3 hr. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Sep 13, 2014, 9:07 PM EDT (01:07 UTC)
Expired
Sep 14, 2014, 12:00 AM EDT
In force
3 hr
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon
Flood severity
None

Counties Mecklenburg County, NC, York County, SC

The radar

The Greer radar (KGSP), 115 km from the middle of the area, began a volume at 01:07 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Sep 13, 9:15 PM EDTFLASH FLOOD1 Ese Tega Cay, SCWATER 2 FT DEEP AT GARDENDALE ROAD.
Sep 13, 9:30 PM EDTFLASH FLOOD1 Ese Tega Cay, SCA REPORT OF FLOODING ON BLUEBELL WAY SATURDAY EVENING.
Sep 13, 9:40 PM EDTFLASH FLOOD2 Ene Tega Cay, SCA PUBLIC REPORT OF HIGHWAY 160 BEING IMPASSABLE DUE TO FLOODING TO THE NORTHWEST OF FORT MILL.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 3 storm reports to this flash flood warning; the first came 8 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 1.1 hours before the alert went out and 151 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Greensboro/Hi Pt, NC at 00:00Z on 2014-09-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 00:00Z on 2014-09-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -41 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1073 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
-41 m²/s²
0-3 km storm-relative helicity
36 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

367 
WGUS52 KGSP 140107
FFWGSP
NCC119-SCC091-140400-
/O.NEW.KGSP.FF.W.0036.140914T0107Z-140914T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
907 PM EDT SAT SEP 13 2014

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EAST CENTRAL YORK COUNTY IN UPSTATE SOUTH CAROLINA...
  SOUTHWESTERN MECKLENBURG COUNTY IN THE PIEDMONT OF NORTH
  CAROLINA...

* UNTIL MIDNIGHT EDT

* AT 907 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE   
WARNED AREA. RADAR ESTIMATED THAT BETWEEN 2 AND 3 INCHES OF RAIN HAS 
FALLEN OVER THE WARNED AREA WITHIN THE PAST HOUR. ADDITIONAL 
RAINFALL AMOUNTS OF UP TO 2 INCHES POSSIBLE THROUGH MIDNIGHT.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  CAROWINDS...CATAWBA STATION...FORT MILL...LAKE WYLIE AND TEGA CAY.

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.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

PLEASE REPORT HIGH WATER...FLOODING...LANDSLIDES OR OTHER SEVERE
WEATHER TO THE NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG BY
CALLING TOLL FREE...1...800...2 6 7...8 1 0 1...OR BY POSTING ON OUR
FACEBOOK PAGE...OR TWEET IT USING HASHTAG NWSGSP. YOUR MESSAGE SHOULD
DESCRIBE THE EVENT AND THE SPECIFIC LOCATION WHERE IT OCCURRED.

&&

LAT...LON 3497 8108 3513 8109 3512 8100 3511 8094
      3506 8089 3501 8090 3499 8088 3493 8087

$$
JOH
2 follow-up statements
356 
WGUS72 KGSP 140252
FFSGSP

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1052 PM EDT SAT SEP 13 2014

NCC119-SCC091-140400-
/O.CON.KGSP.FF.W.0036.000000T0000Z-140914T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MECKLENBURG NC-YORK SC-
1052 PM EDT SAT SEP 13 2014

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR EAST CENTRAL YORK AND
SOUTHWESTERN MECKLENBURG COUNTIES UNTIL MIDNIGHT EDT...

AT 1050 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR ESTIMATED 
THAT AROUND 3 TO 4 INCHES OF RAIN HAS FALLEN OVER THE WARNED AREA 
SINCE 7 PM. ALTHOUGH THE RAINFALL RATES HAVE DECREASED OVER THE PAST 
HOUR...SMALL CREEKS AND RIVER LEVELS WILL REMAIN HIGH.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
CAROWINDS...CATAWBA STATION...FORT MILL...LAKE WYLIE AND TEGA CAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED...ACT QUICKLY. DO NOT
ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND. DO NOT
STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

A FLASH FLOOD WARNING MEANS THAT FLASH FLOODING IS IMMINENT OR
OCCURRING. IF YOU ARE IN THE WARNING AREA...MOVE TO HIGHER GROUND
IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE
IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO
CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

PLEASE REPORT HIGH WATER...FLOODING...LANDSLIDES OR OTHER SEVERE
WEATHER TO THE NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG BY
CALLING TOLL FREE...1...800...2 6 7...8 1 0 1...OR BY POSTING ON OUR
FACEBOOK PAGE...OR TWEET IT USING HASHTAG NWSGSP. YOUR MESSAGE SHOULD
DESCRIBE THE EVENT AND THE SPECIFIC LOCATION WHERE IT OCCURRED.

&&

LAT...LON 3497 8108 3513 8109 3512 8100 3511 8094
      3506 8089 3501 8090 3499 8088 3493 8087

$$
JOH
393 
WGUS72 KGSP 140351
FFSGSP

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1151 PM EDT SAT SEP 13 2014

NCC119-SCC091-140407-
/O.EXP.KGSP.FF.W.0036.000000T0000Z-140914T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MECKLENBURG NC-YORK SC-
1151 PM EDT SAT SEP 13 2014

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR EAST CENTRAL YORK
AND SOUTHWESTERN MECKLENBURG COUNTIES WILL BE ALLOWED TO EXPIRE AT
MIDNIGHT EDT...

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING TO
RECEDE...ENDING THE FLOOD THREAT. IF FLOODING HAS BEEN OBSERVED...
PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PLEASE REPORT HIGH WATER...FLOODING...LANDSLIDES OR OTHER SEVERE
WEATHER TO THE NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG BY
CALLING TOLL FREE...1...800...2 6 7...8 1 0 1...OR BY POSTING ON OUR
FACEBOOK PAGE...OR TWEET IT USING HASHTAG NWSGSP. YOUR MESSAGE SHOULD
DESCRIBE THE EVENT AND THE SPECIFIC LOCATION WHERE IT OCCURRED.

&&

LAT...LON 3497 8108 3513 8109 3512 8100 3511 8094
      3506 8089 3501 8090 3499 8088 3493 8087

$$
JOH

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Greenville-Spartanburg, SC wrote its last area forecast discussion before this flash flood warning went out at Sep 13, 8:59 PM EDT, 8 minutes earlier.

Area forecast discussion, Sep 13, 8:59 PM EDT, 8 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
859 PM EDT SAT SEP 13 2014

.SYNOPSIS...
A STATIONARY FRONT WILL REMAIN JUST TO OUR SOUTH OVER THE WEEKEND
AND INTO EARLY NEXT WEEK WITH HUMID AND UNSETTLED WEATHER EACH DAY.
A BACK DOOR COLD FRONT WILL THEN CROSS THE AREA BY THE MIDDLE OF
NEXT WEEK WITH A COOL AIR WEDGE PATTERN SETTING UP BY THE END OF THE
WORK WEEK.

&&

.NEAR TERM /THROUGH SUNDAY/...
AT 900 PM EDT SATURDAY...A BROAD LOW AMPLITUDE UPPER TROUGH WAS
LOCATED OVER THE NORTHERN TIER OF STATES...WITH ZONAL FLOW ACROSS
THE NATION. MODEL DATA SHOWED A WEAK UPPER IMPULSE CROSSING THE
SOUTHERN APPALACHIANS THIS EVENING. SURFACE ANALYSIS PLACED A
STATIONARY FRONT NEAR THE FALL LINE IN THE PIEDMONT OF THE
CAROLINAS AND GA.

MOST CONVECTIVE ACTIVITY HAS BEEN CONCENTRATED CLOSE TO THE SURFACE
FRONT IN THE SC MIDLANDS. OUTFLOW BOUNDARIES MOVING NW FORM THIS
AREA HAVE REACHED THE SOUTHERN PORTION OF THE CHARLOTTE METRO
AREA...BUT APPEAR TO BE SLOWING. ANOTHER ROUND OF CONVECTION MOVING
SOUTH ACROSS THE US 74 CORRIDOR IN THE NC FOOTHILLS APPEARS TO BE ON
A COLLISION COURSE WITH THE CHARLOTTE AREA STORMS. MORE CONVECTION
WAS NOTED IN NE GA...AND THE SW NC MOUNTAINS.

MODEL SOUNDINGS SHOW INSTABILITY WANING THIS EVENING...BUT WITH A
VERY MOIST PROFILE...WEAK STEERING FLOW...AND BOUNDARIES COLLIDING
AND WANDERING ABOUT...HEAVY RAINFALL AND LOCAL FLOODING MAY CONTINUE
WELL INTO THE NIGHT. NE WINDS BEHIND THE FRONT MAY BE TO LIGHT TO
KEEP FOG FROM FORMING...BUT GUIDANCE ONLY SUPPORTS VERY LOW
VISIBILITY IN THE NC MOUNTAIN VALLEYS. MINIMUM TEMPERATURES WILL RUN
NEAR NORMAL IN RELATIVELY COOL NE FLOW.

COOL HIGH PRESSURE WEDGING DOWN THE EAST SLOPES OF THE APPALACHIANS
WILL CONTINUE THROUGH SUNDAY. LOOKS LIKE CLOUDS WILL BE PLENTIFUL...
BUT ISENTROPIC LIFT OVER THE WEDGE LOOKS WEAK...SO PRECIP CHANCES
ARE ON THE LOW END FOR SUNDAY. THE SW HALF OF THE AREA STANDS THE
BEST CHANCE FOR SOME PATCHY LIGHT RAIN...AND EVEN SOME SCT
SHOWERS/THUNDERSTORMS OVER THE SW MOUNTAINS WHERE THE WEDGE AIRMASS
TYPICALLY DOES NOT REACH. IT WILL BE A COOL DAY ON SUNDAY WITH
MAX TEMPS UP TO 15 DEGREES SHY OF CLIMO OUTSIDE THE MOUNTAINS.

&&

.SHORT TERM /SUNDAY NIGHT THROUGH TUESDAY/...
AS OF 210 PM SATURDAY...WE APPEAR TO HAVE ENTERED INTO A PERIOD OF
TIME WHEN COLD AIR DAMMING WEDGES WILL WAX AND WANE AS THE OVERALL
UPPER PATTERN REMAINS FAIRLY CONSTANT...WHILE AN OLD SURFACE
BOUNDARY REMAINS STRUNG OUT W TO E TO OUR SOUTH AND HIGH PRESSURE
CENTERS PASS BY TO OUR N. THE PROBLEM IS THAT EACH PASSING HIGH
STAYS PROGRESSIVE...SO THE WDEGE NEVER REALLY LOCKS IN. THE FIRST
SUCH WEDGE ON SUNDAY NIGHT WEAKENS AND FALLS APART ON MONDAY AS WHAT
PASSES FOR A PARENT HIGH DRIFTS OFF THE NE COAST AND WEAKENS FURTHER
AND A LEE TROF ESSENTIALLY OVERWHELMS THE REMNANT COOL POOL E OF THE
MTNS. AFTER MILD OVERNIGHT TEMPS...THIS SHOULD ALLOW FOR SOME
REBOUND OF HIGH TEMPS ON MONDAY ASSUMING THE COOL POOL DRAINS AND WE
GET SOME AFTERNOON SUN ACROSS THE FOOTHILLS AND PIEDMONT. HAVE
CONTINUED A DOWNWARD TREND ON PRECIP CHANCES BASED ON THE NEW MODEL
GUIDANCE AND 09Z SREF.

ON MONDAY NIGHT...A FAIRLY STRONG SHORT WAVE WILL MOVE OVERHEAD
WHICH WILL SERVE TO BRING THE AXIS OF A BROAD UPPER TROF OVER THE
CAROLINAS FOR TUESDAY. THE APPROACH AND PASSAGE OF THIS WAVE MAY
TRIGGER ADDITIONAL SHOWER ACTIVITY OVERNIGHT SO A CHANCE POP WAS
KEPT ACROSS MOST OF THE REGION THROUGH TUESDAY MORNING. THIS FEATURE
WILL ALSO BRING A REINFORCING SURFACE BOUNDARY IN FROM THE WEST
WHICH SHOULD PUSH THROUGH EARLY IN THE DAY. BEHIND THIS
BOUNDARY...THE NEXT SURFACE HIGH SHOULD BRIDGE ACROSS THE
APPALACHIANS ON TUESDAY SETTING UP THE POTENTIAL FOR THE DEVELOPMENT
OF ANOTHER WEDGE-LIKE SCENARIO BY THE END OF THE DAY. THE GFS IS
MOST AGGRESSIVE WITH DEVELOPING NEW PRECIP IN THE DEVELOPING
EASTERLY UPSLOPE IN THE AFTERNOON BUT EVEN THE NAM HAS SOME ACTIVITY
NEAR THE MTNS. WILL NUDGE THE FCST IN THE DIRECTION OF THE LOWER POP
SEEN IN THE NEW MOSGUIDE AND AWAY FROM THE MORE ROBUST SREF. TEMPS
COULD BE TRICKY AGAIN IF NEW PRECIP DEVELOPS PER THE GFS. EXPECT
TEMPS TO BE A BIT WARMER ACROSS THE SOUTH BUT KEPT THEM THE SAME
ACROSS THE NRN TIER.

&&

.LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/...
AS OF 155 PM SATURDAY...THE MEDIUM RANGE FCST PICK UP AT 00Z ON
WEDNESDAY WITH A BROAD...LONGWAVE UPPER TROF OVER THE EASTERN CONUS
AND UPPER RIDGING OVER THE WEST. THE TROF IS EXPECTED TO AMPLIFY TO
SOME DEGREE OVER THE NEXT COUPLE OF DAYS AND THEN LIFT NE BY THE END
OF THE WORK WEEK. BY NEXT WEEKEND...THE UPPER RIDGE WILL BUILD
EASTWARD AND LIKELY BE IN PLACE OVER THE FCST AREA BY NEW DAY 7.

AT THE SFC...A NORTHERN PLAINS HIGH WILL DRIFT FARTHER EAST ON TUES
AND SHOULD BE CENTERED OVER THE GREAT LAKES BY THE START OF THE
MEDIUM RANGE AT 00Z WED. THE MODELS CONTINUE TO INDICATE THAT THIS
HIGH WILL BE ABSORBED BY A STRONGER CANADIAN HIGH BY LATE WED/EARLY
THURS. THE HIGH WILL THEN DRIFT OVER NORTHERN NEW ENGLAND OVER THE
NEXT DAY OR TWO AND REMAIN THERE THRU NEW DAY 7. AT THE SAME
TIME...BOTH THE GFS AND ECMWF TRY TO SPIN UP A SFC LOW JUST OFF THE
CAROLINA COAST WHICH ACTS TO ENHANCE/STRENGTHEN A COLD AIR WEDGE PUT
IN PLACE BY THE NEAR STATIONARY SFC HIGH TO THE NE. THE CONSENSUS
AMONG THE GFS...ECMWF...AND CMC MODELS IS GOOD WRT THIS WEDGE
PATTERN DEVELOPING BY NEXT WEEKEND SO OVERALL FCST CONFIDENCE IS
IMPROVING. THE PRECIP CHANCES WERE NOT CHANGED MUCH FOR WED WITH A
SLIGHT TO SOLID CHANCE OVER THE CWFA BY EARLY AFTERNOON...HOWEVER I
DID LOWER VALUES FOR THE REST OF THE MEDIUM RANGE TO ACCOUNT FOR THE
STRONGER WEDGE PATTERN. I ALSO REDUCED THE OVERALL QPF EXPECTED FOR
THE EARLY PART OF THE PERIOD. TEMPS WILL START OUT ABOUT A CATEGORY
BELOW NORMAL ON WED AND DROP A FEW MORE DEGREES BY THE WEEKEND. IF
CURRENT MODEL TRENDS CONTINUE AND THE WEDGE IS EXPECTED TO BE EVEN
STRONGER...TEMPS MAY NEED TO BE LOWERED MORE.

&&

.AVIATION /01Z SUNDAY THROUGH THURSDAY/...
AT KCLT...GUIDANCE SUPPORTS AN MVFR CIG FORMING THIS EVENING...THEN
AN IFR CIG BEFORE DAWN...WITH MVFR VSBY IN FOG BY DAYBREAK...AS
MOISTURE PERSISTS IN THE LOW LEVELS. ALTHOUGH VSBY IMPROVES IN THE
MORNING...CIGS WILL ONLY SLOWLY;Y IMPROVE TO VFR BY MIDDAY. WINDS
WILL FAVOR THE NE. CONVECTIVE CHANCES REMAIN RATHER LIMITED IN
COOL HIGH PRESSURE TO THE NORTH OF A STATIONARY FRONT.

ELSEWHERE...CONVECTIVE CHANCES WILL DIMINISH FORM THE NORTH
OVERNIGHT AS COOL HIGH PRESSURE BUILDS IN FROM THE NORTH. GUIDANCE
FAVORS IFR TO LIFR VSBY IN FOG AT KAVL LATE TONIGHT...WITH MVFR AT
KGSP AND KAND...BUT LEAVES KHKY AND KGMU WITH VFR VSBY. CIG ON THE
OTHER HAND LOWER TO MVFR EVERYWHERE BY DAYBREAK...NOT RETURNING TO
MVFR UNTIL MIDDAY. CONVECTIVE CHANCES WILL IMPROVE FROM THE SOUTH ON
SUNDAY...MAINLY AFTER THIS TAF PACKAGE. WINDS WILL BE FROM THE
NE...EXCEPT AT KAVL...WHERE WINDS ARE EXPECTED TO VEER FROM NW
TONIGHT...TO SE ON SUNDAY.

OUTLOOK...THE WEDGE SHOULD MIX OUT ON MONDAY...BUT SCT
SHOWERS/THUNDERSTORMS WILL DEVELOP AHEAD OF AN APPROACHING COLD
FRONT MONDAY AFTERNOON INTO MONDAY NIGHT. A RETURN TO MAINLY VFR
CONDITIONS IS EXPECTED TUE INTO MIDWEEK OUTSIDE OF RESTRICTIONS WITH
DIURNAL CONVECTION.

CONFIDENCE TABLE...

            01-07Z        07-13Z        13-19Z        19-01Z
KCLT       HIGH  95%     HIGH  92%     HIGH  88%     HIGH  83%
KGSP       HIGH  97%     HIGH  89%     HIGH  91%     HIGH  81%
KAVL       HIGH  92%     HIGH  88%     HIGH  91%     HIGH  81%
KHKY       HIGH 100%     HIGH  85%     HIGH  82%     HIGH  84%
KGMU       HIGH  95%     HIGH  91%     HIGH  92%     MED   75%
KAND       HIGH  90%     HIGH  80%     HIGH  98%     MED   70%

THE PERCENTAGE REFLECTS THE NUMBER OF GUIDANCE MEMBERS AGREEING
WITH THE SCHEDULED TAF ISSUANCE FLIGHT RULE CATEGORY. COMPLETE
HOURLY EXPERIMENTAL AVIATION FORECAST CONSISTENCY TABLES AND ENSEMBLE
FORECASTS ARE AVAILABLE AT THE FOLLOWING LINK: (MUST BE LOWER CASE)

WWW.WEATHER.GOV/GSP/AVIATION_TABLES

&&

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

&&

SYNOPSIS...JPT
NEAR TERM...JAT/LG
SHORT TERM...PM
LONG TERM...JPT
AVIATION...JAT
Hazardous weather outlook, Sep 13, 5:07 PM EDT, 4 hours before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
507 PM EDT SAT SEP 13 2014

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-142115-
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-
507 PM EDT SAT SEP 13 2014

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

.DAY ONE...TONIGHT.

NUMEROUS SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP MAINLY
ACROSS NORTHEAST GEORGIA AND UPSTATE SOUTH CAROLINA THROUGH THIS
EVENING. STORMS WILL BE MORE SCATTERED ACROSS WESTERN NORTH
CAROLINA. THE MAIN THREATS WILL BE FROM CLOUD TO GROUND LIGHTNING...
AS WELL AS HEAVY RAINFALL. ISOLATED FLASH FLOODING WILL BE
POSSIBLE...ESPECIALLY IN LOCATIONS THAT HAVE SEEN VERY HEAVY
RAINFALL SINCE FRIDAY.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

..SUNDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..MONDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..TUESDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..WEDNESDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..THURSDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..FRIDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

NONE.

PM

In the hours before

Special weather statement, Sep 13, 6:30 PM EDT, 2 hours 37 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
630 PM EDT SAT SEP 13 2014

SCZ013-014-132315-
CHESTER-UNION-
630 PM EDT SAT SEP 13 2014

...CLUSTERS OF STRONG THUNDERSTORMS CONTINUE TO RAPIDLY DEVELOP FROM
SOUTHEAST UNION COUNTY AND CHESTER COUNTY IN UPSTATE SOUTH CAROLINA
THROUGH 715 PM EDT.

AT 620 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
VARIOUS CLUSTERS OF STRONG THUNDERSTORM FROM SOUTH OF UNION...OVER
TO PLACES SOUTH OF RICHBURG. THE STORMS WERE DEVELOPING AND MOVING
TO TO SOUTHEAST AROUND 10 MPH.

THESE STORMS WILL IMPACT LOCATIONS NEAR...
  CARLISLE...
  CHESTER...
  LEEDS...
  CORNWELL...

SMALL HAIL...WIND GUSTS OF 40 TO 50 MPH AND TORRENTIAL RAINFALL ARE
EXPECTED WITH THESE STORMS. RAINFALL OF 1 TO 2 INCHES ARE LIKELY IN
A SHORT PERIOD OF TIME.

LAT...LON 3447 8156 3455 8167 3465 8166 3479 8089
      3468 8087 3465 8089 3457 8087 3454 8088
      3456 8141 3449 8142 3449 8148 3445 8152
      3445 8155

STUREY
Special weather statement, Sep 13, 6:56 PM EDT, 2 hours 11 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
656 PM EDT SAT SEP 13 2014

NCZ082-132345-
UNION-
656 PM EDT SAT SEP 13 2014

...STRONG THUNDERSTORMS WILL AFFECT SOUTHERN UNION COUNTY IN THE
PIEDMONT OF NORTH CAROLINA THROUGH 745 PM EDT...

AT 649 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM MARSHVILLE TO
WAXHAW. THESE STORMS WERE MOVING SOUTHEAST AT 5 TO 10 MPH.

THESE STORMS WILL IMPACT LOCATIONS NEAR...
  MINERAL SPRINGS...
  TRINITY...
  JAARS...

WIND GUSTS UP TO 40 MPH...AND TORRENTIAL RAINFALL ARE EXPECTED WITH
THESE STORMS. RAINFALL OF 1 TO 2 INCHES IN A SHORT PERIOD OF TIME
CAN BE EXPECTED WITH THE STORMS.

FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF OUTDOORS...TRY TO
GET INDOORS OR INTO A HARD TOPPED VEHICLE. OTHERWISE...STAY AWAY FROM
OPEN AREAS AND ISOLATED HIGH OBJECTS SUCH AS TREES. WHEN INDOORS...
STAY AWAY FROM WINDOWS AND DOORS AND AVOID USING WIRED ELECTRONIC
DEVICES. TRY TO UNPLUG UNNECESSARY APPLIANCES BEFORE THE STORM
APPROACHES.

LAT...LON 3482 8032 3482 8079 3491 8079 3505 8030

STUREY
Local storm report, Sep 13, 7:01 PM EDT, 2 hours 6 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
701 PM EDT SAT SEP 13 2014

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

0520 PM     TSTM WND DMG     ANDERSON                34.52N 82.65W
09/13/2014                   ANDERSON           SC   COUNTY OFFICIAL

            MULTIPLE TREES DOWN ON EAST MORRIS STREET BETWEEN MAIN
            AND GREENVILLE STREET.

&&

JOH
Local storm report, Sep 13, 7:16 PM EDT, 1 hour 51 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
716 PM EDT SAT SEP 13 2014

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

0645 PM     FLASH FLOOD      4 SSE GREENWOOD         34.13N 82.13W
09/13/2014                   GREENWOOD          SC   COUNTY OFFICIAL

            A PORTION OF US HWY 25 CLOSED NEAR THE INTERSECTION OF SC
            HWY 67 DUE TO FLOODING.

&&

JOH
Special weather statement, Sep 13, 7:53 PM EDT, 1 hour 14 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
753 PM EDT SAT SEP 13 2014

NCZ070>072-082-SCZ009-014-140045-
CABARRUS-CHESTER-GASTON-MECKLENBURG-UNION-YORK-
753 PM EDT SAT SEP 13 2014

...CLUSTERS OF STRONG THUNDERSTORMS WILL AFFECT NORTHERN UNION...
PARTS OF MECKLENBURG...SOUTHEASTERN GASTON AND SOUTH CENTRAL
CABARRUS COUNTIES IN THE PIEDMONT OF NORTH CAROLINA...AND YORK AND
NORTHWESTERN CHESTER COUNTIES IN UPSTATE SOUTH CAROLINA THROUGH 845
PM EDT...

AT 742 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
CLUSTERS OF STRONG THUNDERSTORMS ROUGHLY ALONG A LINE FROM MARVIN TO
5 MILES WEST OF LOWRYS...MOVING NORTH AT 10 TO 15 MPH.

A COMPLEX SITUATION WITH OTHER STORMS LOCATED FROM NORTHERN CLEVELAND
COUNTY NORTH CAROLINA TO LINCOLNTON. THESE STORMS WERE MOVING
SOUTHEAST AT 10 TO 15 MPH.

OVERALL THE THUNDERSTORMS WILL BE APPROACHING THE CHARLOTTE AREA
FROM OPPOSITE DIRECTIONS.

THESE STORMS WILL IMPACT LOCATIONS NEAR...
  ROCK HILL...
  UNIONVILLE...
  LAKE PARK...
  HEMBY BRIDGE...
  THE ARBORETUM...
  CATAWBA STATION...
  CHARLOTTE METRO AREA...

WIND GUSTS OF 30 TO 40 MPH...AND TORRENTIAL RAINFALL ARE EXPECTED
WITH THESE STORMS. RAINFALL OF 1 TO 2 INCHES IN A SHORT PERIOD OF
TIME WILL BE POSSIBLE. LIGHNING WILL ALSO BE ON THE INCREASE.

HEAVY RAINS MAY FLOOD AREAS WITH POOR DRAINAGE...SUCH AS DITCHES AND
UNDERPASSES. AVOID THESE AREAS AND DO NOT CROSS FLOODED ROADS. WATER
LEVELS OF SMALL STREAMS AND RIVERS MAY ALSO RISE RAPIDLY. SEEK HIGHER
GROUND IF THREATENED BY FLOOD WATERS.

LAT...LON 3497 8030 3490 8079 3494 8079 3505 8089
      3501 8090 3495 8086 3488 8087 3468 8139
      3493 8148 3525 8098 3531 8042 3519 8050
      3517 8044 3518 8037 3517 8035 3520 8029
      3519 8027

STUREY
Special weather statement, Sep 13, 8:43 PM EDT, 24 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
843 PM EDT SAT SEP 13 2014

NCZ068-070-SCZ008-140130-
CHEROKEE-CLEVELAND-GASTON-
843 PM EDT SAT SEP 13 2014

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN CHEROKEE...WESTERN
GASTON AND SOUTHERN CLEVELAND COUNTIES THROUGH 930 PM EDT...

AT 839 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR SHELBY...MOVING SOUTHEAST AT 15 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  EARL...
  KINGS MOUNTAIN...
  KINGS MOUNTAIN...
  BLACKSBURG...

NICKEL SIZE HAIL...WIND GUSTS UP TO 50 MPH AND TORRENTIAL RAINFALL
ARE EXPECTED WITH THIS STORM.

FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF OUTDOORS...TRY TO
GET INDOORS OR INTO A HARD TOPPED VEHICLE. OTHERWISE...STAY AWAY FROM
OPEN AREAS AND ISOLATED HIGH OBJECTS SUCH AS TREES. WHEN INDOORS...
STAY AWAY FROM WINDOWS AND DOORS AND AVOID USING WIRED ELECTRONIC
DEVICES. TRY TO UNPLUG UNNECESSARY APPLIANCES BEFORE THE STORM
APPROACHES.

LAT...LON 3516 8134 3517 8136 3514 8140 3511 8140
      3508 8154 3533 8164 3541 8144 3516 8124

STUREY

The office that day

Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 13, 8:08 PM EDTAreal Flood AdvisoryGSPCleveland, Gaston, Lincoln52 min
Sep 13, 8:43 PM EDTSpecial Weather StatementGSPCleveland47 min
Sep 13, 8:46 PM EDTFlash Flood WarningGSPMecklenburg, Union3 hr
Sep 13, 8:50 PM EDTSevere Thunderstorm WarningGSPCleveland40 min
Sep 13, 9:50 PM EDTAreal Flood AdvisoryGSPCleveland, Gaston, Rutherford100 min
Sep 13, 10:01 PM EDTFlash Flood WarningGSPGaston, Mecklenburg3 hr
Sep 13, 10:33 PM EDTFlash Flood WarningGSPCleveland, Gaston3 hr

Nearby

Flash Flood Warnings in North Carolina, 2014Flash Flood Warnings in South Carolina, 2014Every flash flood warning in 2014

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.