Georgia, 2015

Flash Flooding in Georgia, December 30, 2015

December 30, 2015 · NWS GSP · 2 events in 1 county or zone

After a couple of days of occasional moderate to heavy rain acted to elevate stream flows and soil moisture levels, heavy rain showers and thunderstorms developing along and ahead of a cold front produced 2-3 inches of rain in just a few hours across portions of the Georgia Piedmont, resulting in localized flash flooding.

Where it happened

Every event with a place to put it. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
$2,000
Crop damage
None recorded
Events
2

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS GSP wrote it up.

After a couple of days of occasional moderate to heavy rain acted to elevate stream flows and soil moisture levels, heavy rain showers and thunderstorms developing along and ahead of a cold front produced 2-3 inches of rain in just a few hours across portions of the Georgia Piedmont, resulting in localized flash flooding.

What forecasters said that day

The local office's own words before the first event, 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 the first event at Dec 30, 7:59 AM EST, 2 hours 31 minutes earlier.

Area forecast discussion, Dec 30, 7:59 AM EST, 2 hours 31 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
759 AM EST WED DEC 30 2015

.SYNOPSIS...
MOISTURE WILL PERSIST THROUGH THURSDAY AS A FRONT REMAINS STALLED IN
THE AREA. A DRYING TREND WILL BEGIN ON NEW YEARS...LASTING AT LEAST
INTO EARLY NEXT WEEK...AS HIGH PRESSURE PUSHES IN FROM THE WEST.

&&

.NEAR TERM /THROUGH TONIGHT/...
1300 UTC UPDATE...QPF HAVE BEEN RAISED OVER NE GA AND UPSTATE SC
PER TRENDS UPSTREAM IN N GA.

AS OF 630 AM EST WEDNESDAY...AS UPPER SUPPORT RAMPS UP AHEAD OF
AN APPROACHING JETMAX...STARTING TO SEE INCREASING SHRA COVERAGE
ACROSS THE AREA.  THE FRONTAL AXIS TO THE SOUTH IN SLOWLY ON THE
MOVE AS EXPECTED WITH NEARLY ALL SITES SOUTH OF I85 REPORTING IN
WITH SOUTHERLY FLOW AND IMPROVING DEWPOINTS.  OTHERWISE...TWEAKED
POPS A BIT TO ALIGN WITH CURRENT RADAR COVERAGE...ALONG WITH MINOR
ADJUSTMENTS TO TEMPERATURES/DEWPOINTS TO REFLECT OBS.  NO OTHER
CHANGES NEEDED/MADE WITH THIS UPDATE.

PREVIOUS DISCUSSION...THE COMBINATION OF H5 RIDGING OVER THE
WESTERN ATLANTIC AND BROAD TROFING OVER THE CENTRAL CONUS CONTINUES
TO YIELD DEEP SOUTHWEST FLOW ALOFT ACROSS THE SOUTHEAST STATES.
AT THE SURFACE...THE OLD STATIONARY COLD FRONTAL AXIS IS STARTING
ITS PROGGED NORTHWARD MIGRATION AS A WARM FRONT THIS MORNING.
ADDITIONALLY...AN APPROACHING UPPER LEVEL JET MAX EJECTING
THROUGH THE SOUTHERN PLAINS AROUND THE BASE OF THE PARENT TROF
WILL AID UPPER DIVERGENCE WHILE A SERIES OF H5 VORT LOBES SLIDE
ALONG THE MEAN FLOW IN PROXIMITY TO THE SFC WARM FRONT. GIVEN THE
A FORE MENTIONED FEATURES... ALONG WITH THE MEANDERING FRONTAL
AXIS...AND AMPLE MOISTURE BY WAY OF PWAT VALUES IN EXCESS OF 3-4
STD DEVS ABOVE NORMS...MODERATE TO HEAVY RAINFALL LOOKS PROBABLE.
THE FCST CHALLENGE IS DETERMINING THE PLACEMENT OF SUCH. MOST RECENT
GUIDANCE HAS TRENDED A QPF MAXIMA OUTSIDE OF THE NC MTNS AND ACROSS
NE GA...UPSTATE SC...AND THE ENTIRE NC PIEDMONT...WHICH ALL SEEMS
LOGICAL GIVEN THE QUASISTATIONARY NATURE OF THE FRONT. FOCUSING IN
A LITTLE MORE...THE FCST WILL FAVOR THE I85/I77 CORRIDORS WITH THE
HEAVIEST QPF TOTALS AS SOUNDINGS ARE FAVORABLE FOR MODEST SBCAPE
FOR THIS TIME OF YEAR...UPWARDS OF 500-700 JOULES AS LAPSE RATES
REMAIN RELATIVELY STEEP THROUGH A DEEP LAYER. THUS...THINK DEEPER
CONVECTION COULD YIELD PRECIP RATES IN EXCESS OF A HALF TO ONE
INCH PER HOUR AT TIMES...WITH SOME CELL TRAINING POSSIBLE ALONG
THE FRONT GIVEN FAIRLY UNIDIRECTIONAL FLOW ALOFT. NEW STORM TOTAL
QPF AMOUNTS OF 1-2 INCHES ARE FCST WITH LOCALLY HIGHER AMOUNTS
CERTAINLY BEING A POSSIBILITY.  ALL SAID...WILL OPT TO EXPAND
CURRENT FLOOD WATCH NORTHWEST ACROSS THE I40 CORRIDOR TO CONSUME
THE ENTIRETY OF THE NC PIEDMONT.  LIKEWISE...WILL DROP THE WATCH
FURTHER WEST ACROSS MUCH OF THE NC MTNS.

ADDITIONALLY...AS NOTED ABOVE THERMAL PROFILES THIS AFTERNOON
WILL EXHIBIT MODEST LAPSE RATES WITH GUIDANCE FAVORING A TIGHT
INSTABILITY GRADIENT ADJACENT/SOUTH OF THE WARM FRONT.  DEPENDING OF
THE LOCATION OF THE FRONT...LOCALES IN ITS VICINITY AND SOUTH WILL
SEE INCREASED THUNDER POTENTIAL.  AS FOR SEVERE...DEFINITELY NOT
GOING TO RULE ANYTHING OUT AS THE FRONT WILL PROVIDE ADDED FOCUS
FOR LOCALIZED SHEAR MAXIMAS WITH PROFILES SUPPORTING BULK SHEAR IS
IN THE 40-50KT RANGE ON A BROADER SCALE.  THUS THE HWO WILL INCLUDE
SEVERE WORDING WITH DAMAGING WINDS...FREQUENT LIGHTNING...AND FLASH
FLOODING BEING THE PRIMARY THREATS.  ISOLATED TORNADOES CANNOT BE
RULED OUT GIVEN THE ABUNDANT SHEARING...HOWEVER SLIGHTLY VEERED
SURFACE FLOW WILL LIMIT THE CHANCES SOMEWHAT.  THAT SAID...ANYTIME
THERE COULD BE ENHANCEMENT GIVEN BOUNDARY INTERACTION...ANYTHING
IS POSSIBLE WITH EVEN MODEST INSTABILITY THIS TIME OF YEAR.

AS FOR THE FCST...POPS WILL RAMP UP THIS MORNING FROM THE SOUTH
WITH CAT POPS FAVORED BY MIDDAY ACROSS THE ENTIRE FCST DOMAIN.
POPS WILL REMAIN ELEVATED THROUGH THE AFTERNOON BEFORE GRADUALLY
FALLING OFF FROM THE WEST AFTER SUNSET...INTO THE OVERNIGHT AS
DRIER AIR ADVECTS IN WITH AN INTRUDING COLD FRONT.  TEMPERATURES
WILL BE A TOUCH COOLER THAN DAYS PAST AS ABUNDANT CLOUDINESS
INHIBITS INSOLATION...HOWEVER MAX VALUES NEAR 15 DEGREES ABOVE
CLIMO ARE FCST.

&&

.SHORT TERM /THURSDAY THROUGH FRIDAY NIGHT/...
AS OF 230 AM WEDNESDAY...SOUTHWEST FLOW ALOFT WILL CONTINUE OVER
THE SOUTHEAST AND SOUTHERN APPALACHIANS AT THE START OF THE SHORT
TERM...WITH THE COLD FRONT STALLED ACROSS SOUTHEASTERN PORTIONS OF
THE FORECAST AREA. STRONG SHORTWAVE DIGGING OUT OF SOUTH CENTRAL
CANADA INTO THE NORTHERN PLAINS WILL USHER IN THE PATTERN CHANGE
FOR THE WEEKEND. 00Z GUIDANCE IS SLOW TO MOVE THE PRECIP OUT OF OUR
SOUTHEAST ZONES THURSDAY...SO HAVE HUNG ONTO SLIGHT CHANCE SHOWERS
ACCORDINGLY. SURFACE HIGH PRESSURE BUILDS IN FROM THE WEST AND
FINALLY PUSHES ALL THE PRECIP OUT LATE ON FRIDAY. THE AFOREMENTIONED
SHORTWAVE CONTINUES TO DIG SOUTHEAST...WITH THE TROUGH AXIS CROSSING
THE SPINE OF THE APPALACHIANS TOWARD THE END OF THE PERIOD. GFS IS
A LITTLE FASTER WITH THIS...WITH THE TROUGH AXIS PUSHING THROUGH
BY 06Z SATURDAY...BUT THE ECMWF IS A TAD SLOWER AND HAS THE TROUGH
AXIS RIGHT ON THE TN/NC LINE AT THE END OF THE SHORT TERM.

THE BIG STORY WILL BE THE CHANGE IN TEMPERATURES IN THE WAKE
OF THE COLD FRONT...WITH A SECONDARY COOL-DOWN BEHIND THE
LATE-PERIOD TROUGH AXIS WHICH WILL BE REALIZED AS WE BEGIN THE
EXTENDED. SHOULD STILL SEE HIGHS WELL ABOVE SEASONAL NORMALS FOR
THE FOOTHILLS AND PIEDMONT ON THURSDAY /DEPENDING ON EXACTLY WHERE
THE FRONT IS LOCATED AT MAX HEATING/...BUT THE MOUNTAINS WILL
ALREADY BE EXPERIENCING SOME RELIEF FROM THE SPRING-LIKE TEMPS BY
THURSDAY. HIGHS THURSDAY SHOULD BE 5 OR SO DEGREES COOLER THAN
THOSE TODAY. FOR NEW YEARS DAY HOWEVER...WITH THE CAA PUSHING
IN...SHOULD SEE ANOTHER 10 DEGREE DROP IN HIGHS TO JUST SLIGHTLY
ABOVE SEASONAL AVERAGES. THE AREA HASN'T SEEN TEMPERATURES BELOW
FREEZING SINCE DECEMBER 20 AND BY NEW YEARS NIGHT...THE MOUNTAINS
AND FOOTHILLS WILL BE BACK INTO THE SWING OF NORMAL WINTER.

OTHER THAN THE TEMPERATURES...CANNOT TOTALLY RULE OUT SOME
ISOLATED SNOW SHOWERS AT THE HIGHEST ELEVATIONS LATE THURSDAY/EARLY
FRIDAY...BUT SYNOPTIC SETUP NOT PARTICULARLY SUPPORTIVE SINCE IT
IS MORE WEST TO SOUTHWEST FLOW ALOFT. TEMPS WILL BE JUST ABOVE
FREEZING FOR THE MOST PART THURSDAY NIGHT SO CONFIDENCE JUST NOT
ENOUGH TO INCLUDE ANY FLURRIES/SNOW SHOWERS AT THIS TIME.

&&

.LONG TERM /SATURDAY THROUGH TUESDAY/...
AS OF 245 AM WEDNESDAY...WE START THE EXTENDED EITHER RIGHT AFTER
THE SECONDARY UPPER TROUGH AXIS AND DRY COLD FRONT /ON THE GFS/
OR WITH IT RIGHT ON OUR DOORSTEP /ECMWF/...BUT THE RESULTING
SENSIBLE WEATHER IS THE SAME. CAA BEHIND THE SYSTEM WILL RESULT
IN HIGHS SATURDAY ACTUALLY BELOW...YES BELOW...SEASONAL NORMALS
FOR THE AREA. THIS IS SHORT-LIVED AS WE WARM UP AGAIN SUNDAY WITH
WEAK CONFLUENT FLOW ALOFT...AND RIDGING BUILDING INTO THE CENTER OF
THE COUNTRY. DRY HIGH PRESSURE WILL DOMINATE OUR WEATHER...THOUGH
UNSETTLED WEATHER IS JUST A STATE AWAY IN SOUTH GEORGIA AND ALONG
THE FLORIDA PANHANDLE AS THE FRONT REMAINS STALLED IN THOSE AREAS.

MODELS DIVERGE PRETTY SIGNIFICANTLY EARLY NEXT WEEK WITH THE GFS
BRINGING ANOTHER SHORTWAVE THROUGH EARLY MONDAY BUT WITH WEAK
RIDGING BUILDING IN FOR THE ECWMF. HOWEVER...DRY WEATHER SHOULD
CONTINUE TO DOMINATE...ALLOWING THE FORECAST AREA TO CONTINUE
TO DRY OUT...THOUGH THERE MAY BE SOME QUESTION AS TO ACTUAL
TEMPERATURES. FOR NOW HAVE KEPT A BLEND WITH TEMPERATURES PRETTY
CLOSE TO SEASONAL NORMALS. MIGHT START SEEING SOME PRECIPITATION
CREEP BACK INTO THE AREA AT THE VERY END OF THE PERIOD BUT NOT
ENOUGH CONFIDENCE TO INCLUDE AT THIS TIME.

&&

.AVIATION /13Z WEDNESDAY THROUGH SUNDAY/...
AT KCLT...IFR THROUGH MID/LATE MORNING BEFORE SOME SLIGHT
IMPROVEMENT TO MVFR AS MIXING IMPROVES. AS THE WARM FRONT SHIFTS
NORTH...DEEPER MOISTURE AND INCREASING INSTABILITY WILL BE FAVORED
THUS TAF CONTINUES TO FEATURE TSRA BY WAY OF PROB30S THIS AFTERNOON.
IT IS POSSIBLE THAT THUNDER COULD OCCUR SOONER...THUS LATER
ADJUSTMENTS TO INCLUDE TEMPOS ARE PROBABLE.  ALL WX IS REMOVED
NLT THAN 06Z WITH CIGS LINGERING AT IFR/LIFR THROUGH PERIODS END.
WINDS WILL REMAIN SOUTHERLY THROUGH THIS TAF CYCLE WITH SOME
GUSTING POSSIBLE THIS AFTERNOON.

ELSEWHERE...MUCH THE SAME AS KCLT ABOVE FOR THE SC SITES AND
KAVL AS MOISTURE INCREASES YIELDING LOWERED CIGS/VISB WITH
SHRA SPREADING OVER THE AREA.  EXPECTING MVFR INITIALLY WITH
IFR CIGS/VISB BY MID/LATE MORNING FOR THESE LOCALES WITH SHRA
INCREASING IN COVERAGE.  CIGS ARE THEN FCST TO IMPROVE YET AGAIN TO
MVFR WITH SOME LINGERING SCT IFR STRATUS THIS AFTN...WITH THE TAF
CONTINUING TO HIGHLIGHT TSRA POTENTIAL THIS AFTN BY WAY OF VCTS
MENTION.  AS FOR KHKY...CONDITIONS WILL CONTINUE TO DETERIORATE
WITH TIME...HOWEVER DELAYED GIVEN PROXIMITY TO ENCROACHING DEEPER
MOISTURE AXIS AND ANY UPSTREAM SHRA.  LIKEWISE...TSRA POTENTIAL
WILL ALSO BE LESS AT KHKY THEREFORE NOT INCLUDED IN THIS TAF SET.
WINDS AT ALL SITES WILL REMAIN LIGHT/MODERATE AND SOUTHERLY THROUGH
THE PERIOD EXCEPT FOR AT KAVL WHERE A COLD FRONT WILL PASS LEADING
TO VEERED NW FLOW LATE IN THE TAF CYCLE.

OUTLOOK...DEEP LAYER MOISTURE WILL DECREASE ON THURSDAY AS A COLD
FRONT SWEEPS THROUGH THE AREA ALLOWING FOR THE RETURN OF COOL/DRY
HIGH PRESSURE AND THUS LOW CHANCES FOR RESTRICTIONS THROUGH THE
WEEKEND.

CONFIDENCE TABLE...

            13-19Z        19-01Z        01-07Z        07-12Z
KCLT       HIGH  82%     MED   78%     MED   79%     HIGH  80%
KGSP       HIGH  83%     MED   74%     HIGH  81%     HIGH  85%
KAVL       MED   66%     MED   66%     MED   66%     MED   69%
KHKY       HIGH  83%     MED   79%     HIGH  81%     MED   68%
KGMU       MED   77%     MED   73%     MED   77%     MED   76%
KAND       HIGH  82%     MED   73%     HIGH  87%     MED   78%

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

&&

.HYDROLOGY...
SOME CHANGES TO FLOOD WATCH PLACEMENT WITH THIS FCST.  LOCALES
ACROSS NE GA AND UPSTATE SC REMAIN UNCHANGED WHILE THE WATCH WAS
EXPANDED NW TO INCLUDE THE ENTIRE NC PIEDMONT AS LATEST GUIDANCE
FAVORS A SHIFTED QPF MAXIMA ALONG THE QUASISTATIONARY FRONTAL AXIS.
FURTHERMORE...MUCH OF THE WESTERN EXTENT OF THE PREVIOUS WATCH
WAS REMOVED AS SAID MAXIMA REMAINS OUTSIDE OF THE MTNS.

STREAM LEVELS AROUND THE REGION ARE RUNNING QUITE HIGH GIVEN THE
RECENT RAINFALL. ALTHOUGH ADDITIONAL QPF GOING FORWARD MAY BE
LIMITED TO 1 TO 2 INCHES IN MANY AREAS...WET ANTECEDENT CONDITIONS
ALONG WITH POSSIBLY HIGHER RATES IN CONVECTION THIS AFTERNOON WILL
YIELD A RENEWED FLOODING THREAT.

DEEP MOISTURE WILL RETURN OVER THE STALLED FRONTAL BOUNDARY
TONIGHT...BRINGING PRECIPITABLE WATER ANOMALIES OF 2 TO 3+ STANDARD
DEVIATIONS ABOVE NORMAL TO THE REGION. THIS WILL INTERACT WITH MANY
AREAS WHERE 3 HOUR FLOOD GUIDANCE IS GENERALLY LESS THAN 2 INCHES.

&&

.GSP WATCHES/WARNINGS/ADVISORIES...
GA...FLOOD WATCH THROUGH THURSDAY MORNING FOR GAZ010-017-018-026-
     028-029.
NC...FLOOD WATCH THROUGH THURSDAY MORNING FOR NCZ036-037-056-057-
     062>065-068>072-082-507>510.
SC...FLOOD WATCH THROUGH THURSDAY MORNING FOR SCZ001>014-019.

&&

SYNOPSIS...TDP
NEAR TERM...CDG/JAT
SHORT TERM...TDP
LONG TERM...TDP
AVIATION...CDG
HYDROLOGY...
Hazardous weather outlook, Dec 30, 4:23 AM EST, 6 hours 7 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
423 AM EST WED DEC 30 2015

GAZ010-017-018-026-028-029-NCZ036-037-056-057-062>065-068>072-082-
507>510-SCZ001>014-019-310930-
RABUN-HABERSHAM-STEPHENS-FRANKLIN-HART-ELBERT-IREDELL-DAVIE-CATAWBA-
ROWAN-MACON-SOUTHERN JACKSON-TRANSYLVANIA-HENDERSON-CLEVELAND-
LINCOLN-GASTON-MECKLENBURG-CABARRUS-UNION-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-CHESTER-GREENWOOD-
423 AM EST WED DEC 30 2015

...FLOOD WATCH IN EFFECT THROUGH THURSDAY MORNING...

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

.DAY ONE...TODAY AND TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   FLOOD WATCH.

ADDITIONALLY...SCATTERED TO NUMEROUS THUNDERSTORMS ARE POSSIBLE
THIS AFTERNOON AND EVENING. IN ADDITION TO HEAVY RAINFALL...
FREQUENT LIGHTNING AND GUSTY WINDS CAN BE EXPECTED. ISOLATED
SEVERE THUNDERSTORMS ARE POSSIBLE...WITH DAMAGING WINDS THE
PRIMARY THREAT...BUT AN ISOLATED TORNADO CANNOT BE RULED OUT.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

..THURSDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..FRIDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..SATURDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..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.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTERS ARE REQUESTED TO FORWARD ANY REPORTS OF FLOODING
OR SEVERE WEATHER TO OUR OFFICE.

NCZ033-035-048>053-058-059-501>506-310930-
AVERY-ALEXANDER-MADISON-YANCEY-MITCHELL-SWAIN-HAYWOOD-BUNCOMBE-
GRAHAM-NORTHERN JACKSON-CALDWELL MOUNTAINS-GREATER CALDWELL-
BURKE MOUNTAINS-GREATER BURKE-MCDOWELL MOUNTAINS-EASTERN MCDOWELL-
423 AM EST WED DEC 30 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PIEDMONT NORTH CAROLINA AND
WESTERN NORTH CAROLINA.

.DAY ONE...TODAY AND TONIGHT.

ISOLATED TO SCATTERED THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON
AND EVENING. THE MAIN THREATS IN ANY THUNDERSTORM THAT DEVELOPS
WILL BE BRIEF HEAVY RAIN...FREQUENT LIGHTNING AND GUSTY WINDS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

..THURSDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..FRIDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..SATURDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..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.

.SPOTTER INFORMATION STATEMENT...

NONE.

In the hours before

Special weather statement, Dec 30, 9:40 AM EST, 50 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
940 AM EST WED DEC 30 2015

NCZ068-070-SCZ008-009-301515-
CLEVELAND NC-GASTON NC-CHEROKEE SC-YORK SC-
940 AM EST WED DEC 30 2015

...THUNDERSTORM WITH TORRENTIAL RAINFALL WILL IMPACT PORTIONS OF
GASTON...SOUTHEASTERN CLEVELAND...NORTHWESTERN YORK AND NORTHEASTERN
CHEROKEE COUNTIES UNTIL 1015 AM EST...

AT 940 AM EST...DOPPLER RADAR WAS TRACKING A THUNDERSTORM WITH
TORRENTIAL RAINFALL 12 MILES NORTHWEST OF YORK...OR NEAR KINGS
MOUNTAIN STATE PARK...MOVING NORTHEAST AT 20 MPH.

WIND GUSTS UP TO 40 MPH WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
GASTONIA...KINGS MOUNTAIN...BELMONT...BESSEMER CITY...SOUTH
GASTONIA...CLOVER...DALLAS...CRAMERTON...LOWELL AND RANLO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL 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.

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 3499 8141 3516 8155 3541 8119 3541 8117
      3524 8101 3520 8101 3518 8100 3517 8100
TIME...MOT...LOC 1440Z 235DEG 19KT 3512 8140

07
Special weather statement, Dec 30, 9:43 AM EST, 47 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
943 AM EST WED DEC 30 2015

SCZ011-019-301515-
ABBEVILLE SC-GREENWOOD SC-
943 AM EST WED DEC 30 2015

...THUNDERSTORM WITH TORRENTIAL RAINFALL WILL IMPACT PORTIONS OF
NORTHWESTERN GREENWOOD AND ABBEVILLE COUNTIES UNTIL 1015 AM EST...

AT 943 AM EST...DOPPLER RADAR WAS TRACKING A THUNDERSTORM WITH
TORRENTIAL RAINFALL 9 MILES WEST OF ABBEVILLE...OR 4 MILES NORTHEAST
OF CALHOUN FALLS...MOVING NORTHEAST AT 20 MPH.

WIND GUSTS UP TO 40 MPH WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
ABBEVILLE...GREENWOOD...WARE SHOALS...CALHOUN FALLS...DUE WEST...
DONALDS...COKESBURY...HODGES...SHOALS JUNCTION AND LOWNDESVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL 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.

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 3417 8268 3442 8242 3448 8232 3447 8231
      3445 8228 3440 8224 3436 8218 3433 8217
      3433 8214 3425 8206 3407 8246 3407 8253
      3404 8256
TIME...MOT...LOC 1443Z 234DEG 19KT 3415 8255

07
Local storm report, Dec 30, 10:01 AM EST, 29 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1001 AM EST WED DEC 30 2015

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

0950 AM     FLASH FLOOD      KINGS MOUNTAIN          35.24N 81.35W
12/30/2015                   CLEVELAND          NC   TRAINED SPOTTER

            SPOTTER REPORTED FLOODED CREEK AT WILLIAMSBURG COURT AND
            BRIDGES DRIVE IN KINGS MT, NC

&&

JPT
Special weather statement, Dec 30, 10:03 AM EST, 27 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1003 AM EST WED DEC 30 2015

NCZ057-070>072-301530-
CABARRUS NC-ROWAN NC-GASTON NC-MECKLENBURG NC-
1003 AM EST WED DEC 30 2015

...STRONG THUNDERSTORM WILL IMPACT PORTIONS OF CENTRAL MECKLENBURG...
SOUTHWESTERN ROWAN...NORTHEASTERN GASTON AND CABARRUS COUNTIES UNTIL
1030 AM EST...

AT 1003 AM EST...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 9
MILES NORTHWEST OF UPTOWN CHARLOTTE...OR NEAR MT HOLLY...MOVING
NORTHEAST AT 45 MPH.

WIND GUSTS UP TO 45 MPH WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
UPTOWN CHARLOTTE...HUNTERSVILLE...KANNAPOLIS...DOWNTOWN CONCORD...
SALISBURY...NORTHEAST CHARLOTTE...NORTHWEST CHARLOTTE...WEST
CONCORD...MT HOLLY AND HARRISBURG.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3530 8043 3518 8098 3534 8109 3540 8098
      3540 8096 3542 8096 3551 8079 3551 8074
      3554 8074 3567 8051 3543 8034
TIME...MOT...LOC 1503Z 240DEG 49KT 3529 8099

07
Local storm report, Dec 30, 10:17 AM EST, 13 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1017 AM EST WED DEC 30 2015

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

0950 AM     FLASH FLOOD      GREENVILLE              34.84N 82.37W
12/30/2015                   GREENVILLE         SC   PUBLIC

            MAJOR ROAD FLOODING REPORTED AT ANTIOCH CHURCH RD IN
            GREENVILLE, SC.

&&

JPT
Local storm report, Dec 30, 10:27 AM EST, 3 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1027 AM EST WED DEC 30 2015

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

1018 AM     FLASH FLOOD      HARRISBURG              35.32N 80.67W
12/30/2015                   CABARRUS           NC   PUBLIC

            MAJOR ROAD FLOODING OVER RAILROAD AVE IN HARRISBURG, NC.

&&

JPT

The radar

The Greer radar (KGSP), 107 km away, was scanning. The volume nearest the first event began at 15:27 UTC.

Open the radar archive at this moment

Event by event

2 flash flood. Local standard time, as filed.

Flash Flood, Elbert

When
December 30, 10:30 AM EST to 1:30 PM EST
Where
Elbert County, 1.24 mi NE of Fortsonia to 1.63 mi ENE of Fortsonia
Cause
Heavy Rain
Property damage
$1,000
Reported by
911 Call Center
Coordinates
34.031, -82.763

County comms reported minor flash flooding across the southern part of Elbert County, after around 2 inches of rain fell in just a few hours. Chastain Rd was closed, possibly due to flooding along a tributary of Wahachee Creek. Wahachee Creek also overflowed its banks and flooded Morgan Ln, briefly threatening a home.

Flash Flood, Elbert

When
December 30, 4:00 PM EST to 6:00 PM EST
Where
Elbert County, 1.03 mi W of Harper to 0.5 mi WNW of Harper
Cause
Heavy Rain
Property damage
$500
Reported by
Official NWS Observations
Coordinates
34.201, -82.998

After around 2 inches of rain fell across much of Elbert County, a stream gauge on Beaverdam Creek in the far northern part of the county exceeded established flood stage, indicating flooding of Brickyard Rd and Horse Farm Rd.

What these are

Flash Flood
Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Georgia in 2015Every state in 2015This day in weather historyWarnings in Georgia, December 2015

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 612950, 612951.