Alert archive / North Carolina / Severe Thunderstorm Warnings in 2015
Severe Thunderstorm Warning 9, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Apr 20, 2015, 9:30 AM EDT for Gaston County, Mecklenburg County, North Carolina. It was in force for 45 min. 2 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
- Apr 20, 2015, 9:30 AM EDT (13:30 UTC)
- Expired
- Apr 20, 2015, 10:15 AM EDT
- In force
- 45 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Storm-based polygon
Counties Gaston County, NC, Mecklenburg County, NC
The radar
The Greer radar (KGSP), 127 km from the middle of the area, began a volume at 13:32 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 20, 9:43 AM EDT | TSTM WND DMG | Gastonia, NC | A REPORT OF A TREE BLOWN DOWN ON A MOBILE HOME AT 235 HANKS CIRCLE. |
| Apr 20, 10:05 AM EDT | HAIL 1 | 2 S Huntersville, NC | TIME ESTIMATED ON RADAR. |
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 2 storm reports to this severe thunderstorm warning; the first came 13 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 12:00Z, 1.5 hours before the alert went out and 128 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.
- Mixed-layer CAPE
- 17 J/kg
- Mixed-layer CIN
- -48 J/kg
- Mixed-layer LCL
- 654 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 59 m²/s²
- 0-3 km storm-relative helicity
- 77 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
034
WUUS52 KGSP 201330
SVRGSP
NCC071-119-201415-
/O.NEW.KGSP.SV.W.0009.150420T1330Z-150420T1415Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
930 AM EDT MON APR 20 2015
THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
CENTRAL MECKLENBURG COUNTY IN THE PIEDMONT OF NORTH CAROLINA...
GASTON COUNTY IN THE PIEDMONT OF NORTH CAROLINA...
* UNTIL 1015 AM EDT
* AT 930 AM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM
WAS LOCATED 9 MILES WEST OF GASTONIA...OR OVER KINGS MOUNTAIN...AND
MOVING EAST AT 50 MPH.
* LOCATIONS IMPACTED INCLUDE...
GASTONIA...NORTHWEST CHARLOTTE...UPTOWN CHARLOTTE...NORTHEAST
CHARLOTTE...MINT HILL...MT HOLLY...BELMONT...BESSEMER CITY...SOUTH
GASTONIA AND DALLAS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS STORM IS CAPABLE OF BLOWING DOWN SCATTERED TREES AND POWER
LINES. BRIEF LARGE HAIL MAY ALSO OCCUR. SEEK SHELTER INSIDE AN
INTERIOR ROOM.
THIS STORM IS ALSO PRODUCING EXTREMELY HEAVY RAINFALL. FLOODING OF
DRAINAGE DITCHES AND LOW LYING AREAS MAY OCCUR. DO NOT DRIVE THROUGH
AREAS WHERE WATER IS FLOWING OVER THE ROAD.
PLEASE REPORT DAMAGING WINDS...HAIL...OR FLOODING 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 3517 8060 3517 8133 3526 8132 3528 8136
3533 8136 3541 8076 3539 8075 3535 8069
3527 8067 3521 8055
TIME...MOT...LOC 1330Z 264DEG 45KT 3525 8133
$$
081 follow-up statement
780
WWUS52 KGSP 201400
SVSGSP
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1000 AM EDT MON APR 20 2015
NCC071-201408-
/O.CAN.KGSP.SV.W.0009.000000T0000Z-150420T1415Z/
GASTON NC-
1000 AM EDT MON APR 20 2015
...THE SEVERE THUNDERSTORM WARNING FOR GASTON COUNTY IS CANCELLED...
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF
THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.
LAT...LON 3523 8060 3521 8101 3527 8102 3533 8098
3534 8099 3536 8092 3536 8098 3538 8099
3541 8076 3540 8077 3535 8069 3527 8067
TIME...MOT...LOC 1358Z 264DEG 42KT 3534 8093
$$
NCC119-201415-
/O.CON.KGSP.SV.W.0009.000000T0000Z-150420T1415Z/
MECKLENBURG NC-
1000 AM EDT MON APR 20 2015
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 AM EDT
FOR CENTRAL MECKLENBURG COUNTY...
AT 958 AM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE
OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS
LOCATED NEAR NORTHWEST CHARLOTTE...MOVING EAST AT 50 MPH.
LOCATIONS IMPACTED INCLUDE...
NORTHWEST CHARLOTTE...UPTOWN CHARLOTTE...NORTHEAST CHARLOTTE...
CHARLOTTE DOUGLAS AIRPORT...HIDDEN VALLEY...PAW CREEK...THE PLAZA...
REEDY CREEK PARK...UNC CHARLOTTE AND CROFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS STORM IS CAPABLE OF BLOWING DOWN SCATTERED TREES AND POWER
LINES. BRIEF LARGE HAIL MAY ALSO OCCUR. SEEK SHELTER INSIDE AN
INTERIOR ROOM.
THIS STORM IS ALSO PRODUCING EXTREMELY HEAVY RAINFALL. FLOODING OF
DRAINAGE DITCHES AND LOW LYING AREAS MAY OCCUR. DO NOT DRIVE THROUGH
AREAS WHERE WATER IS FLOWING OVER THE ROAD.
PLEASE REPORT DAMAGING WINDS...HAIL...OR FLOODING 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 3523 8060 3521 8101 3527 8102 3533 8098
3534 8099 3536 8092 3536 8098 3538 8099
3541 8076 3540 8077 3535 8069 3527 8067
TIME...MOT...LOC 1358Z 264DEG 42KT 3534 8093
$$
08What forecasters said that day
The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Apr 20, 6:55 AM EDT, 2 hours 35 minutes earlier.
Area forecast discussion, Apr 20, 6:55 AM EDT, 2 hours 35 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...ARKHazardous weather outlook, Apr 20, 4:55 AM EDT, 4 hours 35 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, 2 hours 21 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
RWHSpecial weather statement, Apr 20, 7:56 AM EDT, 1 hour 34 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
JPTSpecial weather statement, Apr 20, 8:01 AM EDT, 1 hour 29 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
JPTSpecial weather statement, Apr 20, 8:18 AM EDT, 1 hour 12 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
Local storm report, Apr 20, 8:37 AM EDT, 53 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
837 AM EDT MON APR 20 2015
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0800 AM TSTM WND DMG SENECA 34.69N 82.96W
04/20/2015 OCONEE SC EMERGENCY MNGR
TREES AND POWER LINES REPORTED DOWN IN THE 2011 FOREST
DRIVE AREA.
&&
LGABRICSpecial weather statement, Apr 20, 9:05 AM EDT, 25 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
905 AM EDT MON APR 20 2015
NCZ068>070-508-510-SCZ006>009-012>014-201400-
EASTERN POLK NC-CLEVELAND NC-GREATER RUTHERFORD NC-GASTON NC-
LINCOLN NC-LAURENS SC-CHESTER SC-YORK SC-GREATER GREENVILLE SC-
SPARTANBURG SC-CHEROKEE SC-UNION SC-
905 AM EDT MON APR 20 2015
...A CLUSTER OF THUNDERSTORMS WILL IMPACT PORTIONS OF SOUTHEASTERN
EASTERN POLK...CLEVELAND...GREATER RUTHERFORD...GASTON...LINCOLN...
NORTH CENTRAL LAURENS...WESTERN CHESTER...YORK...NORTHEASTERN GREATER
GREENVILLE...SPARTANBURG...CHEROKEE AND UNION UNTIL 1000 AM EDT...
AT 902 AM EDT...DOPPLER RADAR WAS TRACKING A CLUSTER OF
THUNDERSTORMS FROM RUTHERFORD COUNTY NORTH CAROLINA SOUTHWEST INTO
GREENVILLE COUNTY MOVING NORTHEAST AT 45 MPH.
BRIEF DOWNPOURS AND WIND GUSTS UP TO 45 MPH WILL BE POSSIBLE WITH
THESE STORMS.
LOCATIONS IMPACTED INCLUDE...
GASTONIA...SPARTANBURG...SHELBY...MAULDIN...TAYLORS...GAFFNEY...
LINCOLNTON...UNION...YORK AND FOREST CITY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THE COMBINATION OF GUSTY WINDS AND SATURATED SOIL CONDITIONS WILL
CAUSE SCATTERED TREES AND POWER LINES TO FALL. SEEK SHELTER INSIDE AN
INTERIOR ROOM DURING THREATENING WEATHER.
&&
LAT...LON 3473 8244 3554 8189 3554 8185 3557 8183
3558 8180 3560 8179 3560 8177 3559 8171
3558 8170 3558 8169 3556 8166 3557 8160
3556 8157 3557 8155 3548 8097 3459 8124
TIME...MOT...LOC 1302Z 240DEG 49KT 3516 8178
LGThe office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 19, 8:33 PM EDT | River Flood Warning | GSP | Henderson, Transylvania | 61 hr |
| Apr 19, 8:57 PM EDT | Areal Flood Warning | GSP | Burke, Caldwell | 6 hr |
| Apr 19, 9:28 PM EDT | Special Weather Statement | GSP | Swain | 32 min |
| Apr 19, 9:39 PM EDT | River Flood Advisory | GSP | Haywood | 12 hr |
| Apr 19, 10:04 PM EDT | Special Weather Statement | GSP | Madison | 26 min |
| Apr 19, 10:15 PM EDT | Areal Flood Warning | GSP | Cabarrus, Gaston, Mecklenburg, Union | 6 hr |
| Apr 20, 12:04 AM EDT | River Flood Warning | GSP | Gaston | 35 hr |
| Apr 20, 3:04 AM EDT | Areal Flood Warning | GSP | Burke, Caldwell | 6 hr |
| Apr 20, 4:11 AM EDT | Areal Flood Warning | GSP | Cabarrus, Mecklenburg, Union | 6 hr |
| Apr 20, 9:05 AM EDT | Special Weather Statement | GSP | Cleveland, Gaston, Lincoln, Rutherford | 55 min |
| Apr 20, 9:48 AM EDT | Special Weather Statement | GSP | Mecklenburg | 27 min |
| Apr 20, 10:06 AM EDT | Areal Flood Warning | GSP | Cabarrus, Mecklenburg, Union | 3 hr |
| Apr 20, 10:14 AM EDT | Special Weather Statement | GSP | Cabarrus, Mecklenburg, Rowan | 46 min |
| Apr 20, 10:35 AM EDT | Severe Thunderstorm Warning | GSP | Cabarrus | 13 min |
| Apr 20, 1:57 PM EDT | Special Weather Statement | GSP | Polk | 33 min |
| Apr 20, 2:03 PM EDT | Severe Thunderstorm Warning | GSP | Polk | 42 min |
| Apr 20, 2:40 PM EDT | Severe Thunderstorm Warning | GSP | Cleveland | 35 min |
| Apr 20, 3:12 PM EDT | Severe Thunderstorm Warning | GSP | Cleveland, Gaston, Lincoln, Mecklenburg | 48 min |
| Apr 20, 3:21 PM EDT | Severe Thunderstorm Warning | GSP | Cleveland, Rutherford | 39 min |
| Apr 20, 3:58 PM EDT | Severe Thunderstorm Warning | GSP | Cabarrus, Gaston, Mecklenburg, Rowan | 47 min |
| Apr 20, 4:03 PM EDT | Severe Thunderstorm Warning | GSP | Cleveland, Rutherford | 33 min |
| Apr 20, 4:22 PM EDT | Flash Flood Warning | GSP | Mecklenburg | 3 hr |
| Apr 20, 4:31 PM EDT | Severe Thunderstorm Warning | GSP | Cleveland, Gaston | 44 min |
| Apr 20, 4:41 PM EDT | Severe Thunderstorm Warning | GSP | Cabarrus, Rowan | 49 min |
| Apr 20, 5:20 PM EDT | Severe Thunderstorm Warning | GSP | Cabarrus, Mecklenburg | 40 min |
| Apr 20, 6:39 PM EDT | Severe Thunderstorm Warning | GSP | Cabarrus | 36 min |
Nearby
Severe Thunderstorm Warnings in North Carolina, 2015Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.