Alert archive / South Carolina / Special Weather Statements in 2015

Special Weather Statement, NWS Greenville-Spartanburg, SC

April 20, 20154 counties in South Carolina

NWS Greenville-Spartanburg, SC issued this special weather statement at Apr 20, 2015, 8:18 AM EDT for 4 counties in South Carolina. It was in force for 42 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Apr 20, 2015, 8:18 AM EDT (12:18 UTC)
Expired
Apr 20, 2015, 9:00 AM EDT
In force
42 min
Issued by
NWS Greenville-Spartanburg, SC

Counties Anderson County, SC, Greenville County, SC, Pickens County, SC, Spartanburg County, SC

The radar

The Greer radar (KGSP), 22 km from the middle of the area, began a volume at 12:18 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.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 0.3 hours before the alert went out and 247 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, Peachtre/Fal Fld, GA at 12:00Z on 2015-04-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 694 joules per kilogram.LCLLFCEL10008507005003002001001 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, Peachtre/Fal Fld, GA at 12:00Z on 2015-04-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 222 square meters per square second.1939587897Sfc1 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
694 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
689 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
222 m²/s²
0-3 km storm-relative helicity
284 m²/s²
Significant tornado parameter
0.8
Supercell composite
4.4

Open this sounding in Storm Lab

The text

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

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Apr 20, 6:55 AM EDT, 1 hour 23 minutes earlier.

Area forecast discussion, Apr 20, 6:55 AM EDT, 1 hour 23 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
655 AM EDT MON APR 20 2015

.SYNOPSIS...
A COLD FRONT WILL CROSS THE AREA TODAY BRINGING ANOTHER ROUND OF
SHOWERS AND THUNDERSTORMS. DRY HIGH PRESSURE BUILDS IN FOR TUESDAY
AND WEDNESDAY. ANOTHER COLD FRONT WILL PUSH IN FROM THE NORTHWEST ON
THURSDAY...POSSIBLY BRINGING SHOWERS BACK TO THE AREA. A STRONGER
STORM SYSTEM WILL MOVE IN FOR THE WEEKEND.

&&

.NEAR TERM /THROUGH TONIGHT/...
AS OF 645 AM...WELL THE NEAR TERM MODELS AND CAMS ARE NOT DOING VERY
WELL WITH THE CONVECTION ENTERING OUR WESTERN ZONES EARLY THIS
MORNING. HAVE BUMPED UP POP IN THE WEST. STILL EXPECT WEAKENING AS
THE REMNANT PRECIP CROSSES THE AREA THRU THE MORNING HOURS. CANNOT
RULE OUT A STRONG OR MARGINALLY SEVERE STORM EARLY ON...BUT
OTHERWISE JUST SOME CG LIGHTNING AND DOWNPOURS WITH THAT ACTIVITY.
THE REST OF THE FCST WAS LEFT UNCHANGED.

AS OF 330 AM...IN THE IMMEDIATE NEAR TERM...THE RADAR HAS GONE INTO
CLEAR AIR MODE...AS A LEAD SHORTWAVE HAS EXITED TO THE NE WITHIN
DEEP LAYER SWLY FLOW. A QUASI-LINEAR MCS IS CURRENTLY CROSSING
CENTRAL TN AND NRN AL. GUIDANCE SEEMS TO BE UNDERESTIMATING THE
STRENGTH/PERSISTENCE OF THIS SYSTEM. THE LATEST RAP ANALYSIS SHOWS
500-1000 J/KG OF MUCAPE WITH 35-45 KTS OF EFFECTIVE SHEAR DOWNSTREAM
OF THIS CLUSTER. THIS RESULTS IN A /MCS MAINTENANCE/ PROB AT 70-80
PCT. SO IT IS NOW EXPECTED THAT THESE STORMS (WHILE STILL ON A
GRADUAL WEAKENING TREND) WILL LIKELY STILL SURVIVE INTO THE NC MTNS
EARLY THIS MORNING. GIVEN THE CURRENT STATE...CANNOT RULE OUT A
STRONG OR SEVERE STORM OR TWO...ESP IN GRAHAM/SWAIN...WHEN THE LINE
GETS INTO THE CWFA. FROM THERE...IT/S DIFFICULT TO SAY HOW MUCH
PRECIP WILL LINGER ACRS THE CWFA THIS MORNING. I HAVE BUMPED UP POP
IN THE WRN MTNS...BUT KEEP JUST A SHOTGUN CHC POP FOR THE REST OF
THE AREA THIS MORNING.

LATER TODAY...GUIDANCE IN GOOD AGREEMENT ON ANOTHER SPOKE OF
VORTICITY ROTATING AROUND THE BROAD CYCLONICALLY CURVED
FLOW...CROSSING THE CWFA FROM THE SOUTHWEST DURING THE PEAK-HEATING
AFTN HOURS. MEANWHILE...A COLD FRONT WILL PUSH INTO THE AREA THIS
AFTN. THE FRONT LOOKS TO ONLY HAVE MODEST LLVL CONVERGENCE.
HOWEVER...GIVEN THE STEEP MID LVL LAPSE RATES AND LINGERING BL
MOISTURE (DEWPTS IN THE MID 60S ACRS THE PIEDMONT). FAIRLY CONFIDENT
IN AT LEAST 40-50 PCT COVERAGE OF CONVECTION...MAYBE HIGHER TO THE
EAST. THE FCST SNDGS SHOW LONG BUT SLIGHTLY CURVED HODOGRAPHS WITH
1500-2500 J/KG OF UNCAPPED SBCAPE. SO EXPECT SOMEWHAT DISCRETE
STORMS INITIALLY...WITH POTENTIAL FOR SUPERCELLS. DEFINITELY WILL
BE A DAMAGING WIND AND HAIL THREAT...WITH AN ISOLD TORNADO THREAT
ACRS THE PIEDMONT THIS AFTN. THE HIGH RES MODELS DO NOT SEEM THAT
IMPRESSED WITH COVERAGE OR INTENSITY. I/M NOT SURE WHAT IS LIMITING
THEIR CONVECTION EXPECT FOR PERHAPS LACK OF DEEPER MOISTURE. THE NEW
DAY 1 CONVECTIVE OUTLOOK STILL HAS ALL AREAS EAST OF THE MTNS IN THE
SLGT RISK...AND A MARGINAL RISK FOR THE MTNS. OTHERWISE...IT WILL BE
BREEZY TODAY UNDER MOSTLY CLOUDY TO PARTLY CLOUDY SKIES WITH TEMPS
BACK ABOVE NORMAL AHEAD OF THE FRONT.

TONIGHT...DRY AIR WILL FILTER IN FROM THE WEST BEHIND THE FRONT.
POPS WILL TAPER OFF...LINGERING THRU THE EVENING ALONG THE TN BORDER
DUE TO UPSLOPE NWLY FLOW. LOWS WILL BE A COUPLE CATEGORIES ABOVE
NORMAL.

&&

.SHORT TERM /TUESDAY THROUGH WEDNESDAY NIGHT/...
AS OF 240 AM MONDAY...THINGS DRY OUT TUE AS DRY HIGH PRESSURE BUILDS
IN FROM THE WEST. EXPECT A MILD AND BREEZY DAY WITH HIGHS UP TO 5
DEGREES BELOW NORMAL. A BROAD AND LOW AMPLITUDE UPPER TROF SETS UP
ACROSS THE AREA FOR WED. WEAK SHORT WAVES MOVING THRU THE TROF WILL
HELP PUSH A WEAK COLD FRONT INTO THE AREA WED AND SOUTH OF THE AREA
WED NITE. THERE IS NOT A LOT OF DEEP MOISTURE WITH THIS SYSTEM AND
THE FORCING IS WEAK. THEREFORE...EXPECT SCT SHRA NEAR THE TN BORDER
WHERE THE MOISTURE IS DEEPEST AND WLY FLOW WILL HELP INCREASE
FORCING. ELSEWHERE...ONLY ISOLATED SHRA ARE EXPECTED...WITH LITTLE
CHC OF PRECIP SOUTH OF I-85. HIGHS WILL RISE TO NEAR NORMAL WED...
WITH LOWS NEAR NORMAL TUE NITE AND ABOVE NORMAL WED NITE.

&&

.LONG TERM /THURSDAY THROUGH SUNDAY/...
AS OF 350 AM MONDAY...AN UPPER TROF AXIS WILL SLIDE EAST OF THE AREA
THURSDAY ALLOWING FLAT RIDGING TO BUILD IN ON FRI. A SHORT WAVE
CROSSES THE AREA SATURDAY WITH ANOTHER BROAD AND LOW AMPLITUDE UPPER
TROF DEVELOPING ON SUNDAY.

HIGH PRESSURE BRIEFLY RETURNS TO THE AREA FRI BEFORE A STRONGER
STORM SYSTEM MOVES IN ON SATURDAY. PRECIP CHC SLOWLY RAMPS UP FRIDAY
WITH POTENTIALLY HEAVY PRECIP ON SATURDAY. DRY HIGH PRESSURE RETURNS
FOR SUNDAY. NEAR NORMAL HIGHS THURSDAY...FALL BELOW NORMAL FOR THE
REST OF THE PERIOD. LOWS BOUNCE AROUND FROM NEAR TO A LITTLE ABOVE
NORMAL.

&&

.AVIATION /12Z MONDAY THROUGH FRIDAY/...
AT KCLT AND ELSEWHERE...PLENTY OF IFR TO MVFR LVL STRATUS ACRS THE
PIEDMONT THIS MORNING...SHUD LIFT AND SCATTER OUT TO A VFR LVL
CUMULUS DECK BY 14-16Z TIME FRAME. A BAND OF WEAKENING SHRA AND TSRA
ARE ENTERING WRN NC AT THE TIME OF THE TAF ISSUANCE. THE 06Z NAM
SEEMS TO HAVE THE BEST HANDLE ON THIS CONVECTION...CARRYING AN AREA
OF -RA ACRS THE NC MTNS AND FOOTHILLS...CLIPPING THE UPSTATE SITES
THIS MORNING. WILL MENTION SHRA AT KAVL AND VCTS AT KAND. NOT ENUF
CONFIDENCE ON ANY IMPACT AT GMU/GSP/HKY TO MENTION. BY MIDDAY...SW
WINDS WILL BECOME GUSTY ACRS THE ENTIRE AREA. A COLD FRONT WILL BE
PUSHING IN FROM THE WEST THIS AFTN...WITH GENERALLY ISOLD TO WIDELY
SCATTERED TSRA EXPECTED TO DEVELOP JUST OUT AHEAD OF THE FRONT ACRS
THE PIEDMONT. WILL CONTINUE TO MENTION PROB30 STARTING AT 21Z. WINDS
WILL SHIFT TO WNW EAST OF THE MTNS...AND NW AT KAVL BEHIND THE FRONT
THIS EVENING...GRADUALLY DIMINISHING OVERNIGHT.

OUTLOOK...DRY HIGH PRESSURE WILL BUILD IN ACROSS THE REGION FOR THE
MIDDLE OF THE WEEK...LEADING TO LOW PRECIP/RESTRICTION CHANCES.

CONFIDENCE TABLE...

            11-17Z        17-23Z        23-05Z        05-06Z
KCLT       MED   78%     MED   69%     HIGH 100%     HIGH 100%
KGSP       HIGH  85%     MED   69%     LOW   57%     HIGH 100%
KAVL       HIGH  93%     HIGH 100%     HIGH 100%     HIGH 100%
KHKY       HIGH 100%     HIGH  87%     HIGH 100%     HIGH 100%
KGMU       HIGH  85%     MED   69%     HIGH 100%     HIGH 100%
KAND       HIGH  85%     MED   75%     HIGH 100%     HIGH 100%

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...RWH
NEAR TERM...ARK
SHORT TERM...RWH
LONG TERM...RWH
AVIATION...ARK
Hazardous weather outlook, Apr 20, 4:55 AM EDT, 3 hours 23 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
455 AM EDT MON APR 20 2015

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-210900-
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-
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-CHESTER-GREENWOOD-
455 AM EDT MON APR 20 2015

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

.DAY ONE...TODAY AND TONIGHT.

A COLD FRONT WILL CROSS THE AREA TODAY BRINGING ANOTHER ROUND OF
SCATTERED THUNDERSTORMS. SOME OF THESE STORMS MAY BECOME SEVERE
WITH DAMAGING WINDS AND LARGE HAIL. IN ADDITION...ISOLATED
TORNADOES WILL BE POSSIBLE...MAINLY ACROSS THE PIEDMONT OF THE
CAROLINAS AND NORTHEAST GEORGIA.

WATER LEVELS WILL REMAIN HIGH IN AREA RIVERS AND STREAMS.
ALTHOUGH THE STORMS WILL BE FAST MOVING...HEAVY RAINFALL IS
POSSIBLE AND ISOLATED FLOODING MAY AGAIN DEVELOP.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

..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.
..SATURDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..SUNDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

NONE.

In the hours before

Special weather statement, Apr 20, 7:09 AM EDT, 1 hour 9 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
709 AM EDT MON APR 20 2015

GAZ010-017-018-026-NCZ062>064-SCZ001-002-004-201200-
FRANKLIN GA-STEPHENS GA-RABUN GA-HABERSHAM GA-SOUTHERN JACKSON NC-
TRANSYLVANIA NC-MACON NC-PICKENS MOUNTAINS SC-GREATER OCONEE SC-
OCONEE MOUNTAINS SC-
709 AM EDT MON APR 20 2015

...A LINE OF STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF WESTERN
FRANKLIN...STEPHENS...RABUN...HABERSHAM...SOUTH CENTRAL SOUTHERN
JACKSON...SOUTHWESTERN TRANSYLVANIA...SOUTHEASTERN MACON...
NORTHWESTERN PICKENS MOUNTAINS...NORTHWESTERN GREATER OCONEE AND
OCONEE MOUNTAINS UNTIL 800 AM EDT...

AT 708 AM EDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM 4 MILES SOUTH OF SKY VALLEY
TO CLARKESVILLE TO 4 MILES EAST OF GAINESVILLE...AND MOVING EAST AT
35 MPH.

PEA SIZE HAIL AND WIND GUSTS UP TO 40 MPH WILL BE POSSIBLE WITH THESE
STORMS.

LOCATIONS IMPACTED INCLUDE...
TOCCOA...WALHALLA...CLAYTON...CLARKESVILLE...CORNELIA...BALDWIN...
WESTMINSTER...DEMOREST...MOUNT AIRY AND ALTO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

GUSTY WINDS CAN BLOW DOWN TREES THAT ARE DEAD...OR THAT HAVE WEAKENED
ROOT SYSTEMS. OUTDOOR FURNITURE AND SIMILAR ITEMS CAN BE TOSSED
AROUND IF NOT ANCHORED. SEEK SHELTER INDOORS.

FREQUENT LIGHTNING IS OCCURRING WITH THESE STORMS. 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
STORMS APPROACH.

&&

LAT...LON 3454 8362 3462 8364 3465 8366 3473 8362
      3476 8363 3477 8365 3495 8355 3499 8353
      3511 8272 3507 8277 3506 8276 3426 8334
      3433 8339 3443 8338 3446 8340 3449 8354
      3443 8362 3450 8367
TIME...MOT...LOC 1108Z 260DEG 31KT 3492 8331 3463 8352 3429 8376

RWH
Special weather statement, Apr 20, 7:56 AM EDT, 22 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
756 AM EDT MON APR 20 2015

GAZ018-026-028-029-NCZ064-065-509-SCZ001>007-010-011-201245-
FRANKLIN GA-HART GA-STEPHENS GA-ELBERT GA-TRANSYLVANIA NC-
POLK MOUNTAINS NC-HENDERSON NC-ABBEVILLE SC-ANDERSON SC-
GREATER PICKENS SC-PICKENS MOUNTAINS SC-GREATER OCONEE SC-
OCONEE MOUNTAINS SC-GREATER GREENVILLE SC-SPARTANBURG SC-
GREENVILLE MOUNTAINS SC-
756 AM EDT MON APR 20 2015

...A LINE OF STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF FRANKLIN...
HART...SOUTHEASTERN STEPHENS...ELBERT...SOUTHEASTERN TRANSYLVANIA...
SOUTHWESTERN POLK MOUNTAINS...SOUTH CENTRAL HENDERSON...WESTERN
ABBEVILLE...ANDERSON...GREATER PICKENS...PICKENS MOUNTAINS...GREATER
OCONEE...SOUTHEASTERN OCONEE MOUNTAINS...GREATER GREENVILLE...
NORTHWESTERN SPARTANBURG AND GREENVILLE MOUNTAINS UNTIL 845 AM EDT...

AT 752 AM EDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS EXTENDING FROM ROUGHLY 4 MILES SOUTH OF ROSMAN TO
APPROXIMATELY 7 MILES EAST OF HOMER...AND MOVING EAST AT 45 MPH.
HEAVY RAIN...CLOUD TO GROUND LIGHTNING...AND WIND GUSTS UP TO 40
MPH WILL BE LIKELY WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
GREENVILLE DOWNTOWN...ANDERSON...MAULDIN...TAYLORS...EASLEY...
CLEMSON...SENECA...ELBERTON...HARTWELL AND PICKENS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE COMBINATION OF GUSTY WINDS AND SATURATED SOIL CONDITIONS MAY
CAUSE SCATTERED TREES AND POWER LINES TO FALL. SEEK SHELTER INSIDE AN
INTERIOR ROOM IF POSSIBLE.

&&

LAT...LON 3410 8303 3417 8310 3423 8308 3427 8312
      3424 8317 3426 8330 3423 8336 3426 8334
      3432 8339 3516 8277 3522 8228 3520 8224
      3517 8186 3512 8184 3476 8212 3478 8215
      3462 8222 3405 8265
TIME...MOT...LOC 1151Z 277DEG 43KT 3508 8280 3431 8338

JPT
Special weather statement, Apr 20, 8:01 AM EDT, 17 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
801 AM EDT MON APR 20 2015

GAZ018-026-028-029-NCZ064-065-509-SCZ001>007-010-011-201245-
FRANKLIN GA-HART GA-STEPHENS GA-ELBERT GA-TRANSYLVANIA NC-
POLK MOUNTAINS NC-HENDERSON NC-ABBEVILLE SC-ANDERSON SC-
GREATER PICKENS SC-PICKENS MOUNTAINS SC-GREATER OCONEE SC-
OCONEE MOUNTAINS SC-GREATER GREENVILLE SC-SPARTANBURG SC-
GREENVILLE MOUNTAINS SC-
801 AM EDT MON APR 20 2015

...A LINE OF STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF FRANKLIN...
HART...SOUTHEASTERN STEPHENS...ELBERT...SOUTHEASTERN TRANSYLVANIA...
SOUTHWESTERN POLK MOUNTAINS...SOUTH CENTRAL HENDERSON...WESTERN
ABBEVILLE...ANDERSON...GREATER PICKENS...PICKENS MOUNTAINS...GREATER
OCONEE...SOUTHEASTERN OCONEE MOUNTAINS...GREATER GREENVILLE...
NORTHWESTERN SPARTANBURG AND GREENVILLE MOUNTAINS UNTIL 845 AM EDT...

AT 752 AM EDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS EXTENDING FROM ROUGHLY 4 MILES SOUTH OF ROSMAN TO
APPROXIMATELY 7 MILES EAST OF HOMER...AND MOVING EAST AT 45 MPH.
HEAVY RAIN...CLOUD TO GROUND LIGHTNING...AND WIND GUSTS UP TO 40
MPH WILL BE LIKELY WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
GREENVILLE DOWNTOWN...ANDERSON...MAULDIN...TAYLORS...EASLEY...
CLEMSON...SENECA...ELBERTON...HARTWELL AND PICKENS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE COMBINATION OF GUSTY WINDS AND SATURATED SOIL CONDITIONS MAY
CAUSE SCATTERED TREES AND POWER LINES TO FALL. SEEK SHELTER INSIDE AN
INTERIOR ROOM IF POSSIBLE.

&&

LAT...LON 3410 8303 3417 8310 3423 8308 3427 8312
      3424 8317 3426 8330 3423 8336 3426 8334
      3432 8339 3516 8277 3522 8228 3520 8224
      3517 8186 3512 8184 3476 8212 3478 8215
      3462 8222 3405 8265
TIME...MOT...LOC 1151Z 277DEG 43KT 3508 8280 3431 8338

JPT
Special weather statement, Apr 20, 8:18 AM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
818 AM EDT MON APR 20 2015

NCZ065-068-508>510-SCZ002>008-010>012-201300-
EASTERN POLK NC-CLEVELAND NC-GREATER RUTHERFORD NC-POLK MOUNTAINS NC-
HENDERSON NC-LAURENS SC-GREATER PICKENS SC-PICKENS MOUNTAINS SC-
GREATER OCONEE SC-GREATER GREENVILLE SC-SPARTANBURG SC-CHEROKEE SC-
GREENVILLE MOUNTAINS SC-ABBEVILLE SC-ANDERSON SC-
818 AM EDT MON APR 20 2015

...A LINE OF STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF SOUTHERN
EASTERN POLK...SOUTHWESTERN CLEVELAND...SOUTH CENTRAL GREATER
RUTHERFORD...SOUTHWESTERN POLK MOUNTAINS...SOUTHEASTERN HENDERSON...
NORTHWESTERN LAURENS...GREATER PICKENS...NORTHEASTERN PICKENS
MOUNTAINS...SOUTHEASTERN GREATER OCONEE...GREATER GREENVILLE...
SPARTANBURG...NORTHWESTERN CHEROKEE...GREENVILLE MOUNTAINS...
NORTHEASTERN ABBEVILLE AND ANDERSON UNTIL 900 AM EDT...

AT 816 AM EDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS EXTENDING FROM APPROXIMATELY 6 MILES NORTHEAST OF
PLEASANT RIDGE STATE PARK TO 5 MILES SOUTHWEST OF PENDLETON...AND
MOVING EAST AT 45 MPH. HEAVY DOWNPOURS...CLOUD TO GROUND
LIGHTNING...AND WIND GUSTS UP TO 40 MPH WILL BE LIKELY WITH THESE
STORMS.

LOCATIONS IMPACTED INCLUDE...
GREENVILLE DOWNTOWN...SPARTANBURG...ANDERSON...MAULDIN...TAYLORS...
EASLEY...CLEMSON...LAURENS...PICKENS AND COLUMBUS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE COMBINATION OF GUSTY WINDS AND SATURATED SOIL CONDITIONS MAY
CAUSE SCATTERED TREES AND POWER LINES TO FALL. SEEK SHELTER INSIDE
AN INTERIOR ROOM.

&&

LAT...LON 3450 8298 3526 8250 3522 8158 3437 8208
TIME...MOT...LOC 1216Z 274DEG 40KT 3517 8243 3458 8282

JPT

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 19, 8:33 PM EDTRiver Flood WarningGSPHenderson, Transylvania61 hr
Apr 19, 8:57 PM EDTAreal Flood WarningGSPBurke, Caldwell6 hr
Apr 19, 9:28 PM EDTSpecial Weather StatementGSPSwain32 min
Apr 19, 9:39 PM EDTRiver Flood AdvisoryGSPHaywood12 hr
Apr 19, 10:04 PM EDTSpecial Weather StatementGSPMadison26 min
Apr 19, 10:15 PM EDTAreal Flood WarningGSPCabarrus, Gaston, Mecklenburg, Union6 hr
Apr 20, 12:04 AM EDTRiver Flood WarningGSPGaston35 hr
Apr 20, 3:04 AM EDTAreal Flood WarningGSPBurke, Caldwell6 hr
Apr 20, 4:11 AM EDTAreal Flood WarningGSPCabarrus, Mecklenburg, Union6 hr
Apr 20, 9:05 AM EDTSpecial Weather StatementGSPCleveland, Gaston, Lincoln, Rutherford55 min
Apr 20, 9:30 AM EDTSevere Thunderstorm WarningGSPGaston, Mecklenburg45 min
Apr 20, 9:48 AM EDTSpecial Weather StatementGSPMecklenburg27 min
Apr 20, 10:06 AM EDTAreal Flood WarningGSPCabarrus, Mecklenburg, Union3 hr
Apr 20, 10:14 AM EDTSpecial Weather StatementGSPCabarrus, Mecklenburg, Rowan46 min
Apr 20, 10:35 AM EDTSevere Thunderstorm WarningGSPCabarrus13 min
Apr 20, 1:57 PM EDTSpecial Weather StatementGSPPolk33 min
Apr 20, 2:03 PM EDTSevere Thunderstorm WarningGSPPolk42 min
Apr 20, 2:40 PM EDTSevere Thunderstorm WarningGSPCleveland35 min
Apr 20, 3:12 PM EDTSevere Thunderstorm WarningGSPCleveland, Gaston, Lincoln, Mecklenburg48 min
Apr 20, 3:21 PM EDTSevere Thunderstorm WarningGSPCleveland, Rutherford39 min
Apr 20, 3:58 PM EDTSevere Thunderstorm WarningGSPCabarrus, Gaston, Mecklenburg, Rowan47 min
Apr 20, 4:03 PM EDTSevere Thunderstorm WarningGSPCleveland, Rutherford33 min
Apr 20, 4:22 PM EDTFlash Flood WarningGSPMecklenburg3 hr
Apr 20, 4:31 PM EDTSevere Thunderstorm WarningGSPCleveland, Gaston44 min
Apr 20, 4:41 PM EDTSevere Thunderstorm WarningGSPCabarrus, Rowan49 min
Apr 20, 5:20 PM EDTSevere Thunderstorm WarningGSPCabarrus, Mecklenburg40 min
Apr 20, 6:39 PM EDTSevere Thunderstorm WarningGSPCabarrus36 min
Apr 20, 4:02 AM EDTAreal Flood WarningGSPYork6 hr
Apr 20, 7:09 AM EDTSpecial Weather StatementGSPOconee51 min
Apr 20, 9:53 AM EDTAreal Flood WarningGSPYork6 hr
Apr 20, 1:10 PM EDTSevere Thunderstorm WarningGSPOconee, Pickens50 min
Apr 20, 1:21 PM EDTSevere Thunderstorm WarningGSPGreenville, Spartanburg39 min
Apr 20, 1:42 PM EDTSevere Thunderstorm WarningGSPGreenville, Pickens48 min
Apr 20, 2:05 PM EDTSevere Thunderstorm WarningGSPOconee40 min
Apr 20, 2:46 PM EDTSevere Thunderstorm WarningGSPGreenville, Spartanburg29 min
Apr 20, 2:48 PM EDTSevere Thunderstorm WarningGSPGreenville, Oconee, Pickens42 min
Apr 20, 3:02 PM EDTSevere Thunderstorm WarningGSPOconee28 min
Apr 20, 3:21 PM EDTFlash Flood WarningGSPGreenville, Oconee, Pickens39 min
Apr 20, 3:26 PM EDTSevere Thunderstorm WarningGSPAnderson, Greenville, Oconee, Pickens49 min
Apr 20, 3:43 PM EDTFlash Flood WarningGSPCherokee, Greenville, Spartanburg62 min
Apr 20, 3:54 PM EDTTornado WarningGSPAnderson, Greenville36 min
Apr 20, 4:02 PM EDTSevere Thunderstorm WarningGSPAbbeville, Anderson43 min
Apr 20, 4:28 PM EDTSevere Thunderstorm WarningGSPAnderson, Greenville, Laurens, Spartanburg47 min
Apr 20, 5:01 PM EDTSevere Thunderstorm WarningGSPChester, Union44 min
Apr 20, 5:39 PM EDTSevere Thunderstorm WarningGSPChester, Union, York51 min
Apr 20, 5:57 PM EDTSpecial Weather StatementGSPAbbeville33 min
Apr 20, 6:02 PM EDTTornado WarningGSPChester, York28 min
Apr 20, 6:23 PM EDTSevere Thunderstorm WarningGSPAbbeville, Greenwood, Laurens52 min
Apr 20, 12:56 PM EDTSpecial Weather StatementGSPRabun34 min

Nearby

Special Weather Statements in South Carolina, 2015Every special weather statement in 2015

Sources

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