Alert archive / North Carolina / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 239, NWS Greenville-Spartanburg, SC

September 4, 2015Buncombe County, McDowell County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Sep 4, 2015, 3:25 PM EDT for Buncombe County, McDowell County, North Carolina. It was in force for 50 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
Sep 4, 2015, 3:25 PM EDT (19:25 UTC)
Expired
Sep 4, 2015, 4:15 PM EDT
In force
50 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon

Counties Buncombe County, NC, McDowell County, NC

The radar

The Greer radar (KGSP), 90 km from the middle of the area, began a volume at 19:25 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

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, 7.4 hours before the alert went out and 220 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 12:00Z on 2015-09-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 760 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, Greensboro/Hi Pt, NC at 12:00Z on 2015-09-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 square meters per square second.1939Sfc1 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
760 J/kg
Mixed-layer CIN
-84 J/kg
Mixed-layer LCL
1288 m above ground
0-6 km bulk shear
4 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
-2 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.

080 
WUUS52 KGSP 041925
SVRGSP
NCC021-111-042015-
/O.NEW.KGSP.SV.W.0239.150904T1925Z-150904T2015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
325 PM EDT FRI SEP 4 2015

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN BUNCOMBE COUNTY IN WESTERN NORTH CAROLINA...
  SOUTHWESTERN MCDOWELL COUNTY IN WESTERN NORTH CAROLINA...

* UNTIL 415 PM EDT

* AT 325 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS
  OF 60 MPH. THIS STORM WAS LOCATED 15 MILES WEST OF MARION...OR 5
  MILES SOUTHWEST OF B.R. PARKWAY-CRAGGY TO LITTLE SWITZERLAND...AND
  MOVING SOUTH AT 10 MPH.

* LOCATIONS IN THE WARNING INCLUDE...
  BLACK MOUNTAIN...SWANNANOA...MONTREAT...B.R. PARKWAY-CRAGGY TO
  LITTLE SWITZERLAND...OLD FORT AND B.R. PARKWAY-EAST ASHEVILLE TO
  CRAGGY GARDENS.

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 3573 8231 3573 8229 3571 8228 3570 8228
      3570 8226 3573 8220 3555 8217 3556 8243
      3575 8237 3575 8233
TIME...MOT...LOC 1925Z 003DEG 8KT 3569 8228 

$$

CDG
2 follow-up statements
632 
WWUS52 KGSP 041943
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
343 PM EDT FRI SEP 4 2015

NCC021-111-042015-
/O.CON.KGSP.SV.W.0239.000000T0000Z-150904T2015Z/
BUNCOMBE NC-MCDOWELL NC-
343 PM EDT FRI SEP 4 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM EDT
FOR NORTHEASTERN BUNCOMBE AND SOUTHWESTERN MCDOWELL COUNTIES...
 
AT 343 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE
OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60
MPH. THIS STORM WAS LOCATED 15 MILES NORTHEAST OF DOWNTOWN
ASHEVILLE...OR 5 MILES NORTH OF BLACK MOUNTAIN...MOVING SOUTH AT 5
MPH.

LOCATIONS IMPACTED INCLUDE...
BLACK MOUNTAIN...SWANNANOA...MONTREAT...B.R. PARKWAY-CRAGGY TO LITTLE
SWITZERLAND...OLD FORT AND B.R. PARKWAY-EAST ASHEVILLE TO CRAGGY
GARDENS.

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 3573 8231 3573 8229 3571 8228 3570 8228
      3570 8226 3573 8220 3555 8217 3556 8243
      3575 8237 3575 8233
TIME...MOT...LOC 1943Z 359DEG 5KT 3570 8231 

$$

CDG
163 
WWUS52 KGSP 042010
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
410 PM EDT FRI SEP 4 2015

NCC021-111-042020-
/O.EXP.KGSP.SV.W.0239.000000T0000Z-150904T2015Z/
BUNCOMBE NC-MCDOWELL NC-
410 PM EDT FRI SEP 4 2015

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN BUNCOMBE AND
SOUTHWESTERN MCDOWELL COUNTIES WILL EXPIRE AT 415 PM EDT...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE. HOWEVER GUSTY WINDS
AND HEAVY RAIN ARE STILL POSSIBLE WITH THIS THUNDERSTORM.

LAT...LON 3573 8231 3573 8229 3571 8228 3570 8228
      3570 8226 3573 8220 3555 8217 3556 8243
      3575 8237 3575 8233
TIME...MOT...LOC 2008Z 003DEG 8KT 3570 8231 

$$

CDG

What 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 Sep 4, 2:56 PM EDT, 29 minutes earlier.

Area forecast discussion, Sep 4, 2:56 PM EDT, 29 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
256 PM EDT FRI SEP 4 2015

.SYNOPSIS...
A COOL AND MOIST WIND FLOW OFF THE ATLANTIC THIS WEEKEND WILL KEEP
CONSIDERABLE CLOUDINESS AND COOLER TEMPERATURES FOR OUR REGION.
EXPECT GRADUAL WARMING EARLY TO MIDDLE OF THE UPCOMING WEEK UNDER AN
UPPER RIDGE. A COLD FRONT AND UPPER TROUGH WILL ARRIVE AT THE END OF
THE WEEK.

&&

.NEAR TERM /THROUGH SATURDAY/...
AS OF 230 PM...SATELLITE IMAGERY SHOWS ENHANCED CU OVER THE
RIDGETOPS AND RADAR IMAGERY SHOWS THAT DEEP CONVECTION HAS INITIATED
ACROSS PARTS OF NC AND ALONG THE BLUE RIDGE IN VA...AND DOWN ACROSS
THE AREA NEAR THE FALL LINE. COVERAGE SHOULD GRADUALLY EXPAND FROM
THERE. STILL THINK WE COULD SEE A FEW STORMS BECOME STRONG ENUF TO
PRODUCE DAMAGING WIND GUSTS NOW THAT WE HAVE REALIZED THE EXPECTED
ENVIRONMENT WITH DCAPE 1000+ J/KG. TEMPS LOOK GOOD.

THE NEXT 24 HOURS SHOULD SEE THE DEVELOPMENT OF A PSEUDO-WEDGE-LIKE
SCENARIO ACROSS THE WESTERN CAROLINAS. THE UPPER AIR PATTERN REMAINS
CONVOLUTED WITH AN OVERALL HIGH AMPLITUDE RIDGE ACROSS EASTERN NORTH
AMERICA...BUT WITH AN UPPER LOW CENTERED OFF THE SOUTHEAST COAST AND
WEAK CYCLONIC FLOW AT MID LEVELS ACROSS THE FCST AREA. WITHIN THIS
FLOW...A LARGE SURFACE HIGH WILL BE SUPPORTED TO OUR NE...LOOSELY
ANCHORED OVER NEW ENGLAND AND THE MARITIME PROVINCES. WHAT THIS DOES
IS PROVIDE A LOW LEVEL NE FLOW...WHICH IS NOT REALLY DAMMED ACROSS
THE AREA TO OUR N. HOWEVER...THE EASTERLY FLOW AND THE DEVELOPMENT
OF CONVECTIVE PRECIP ACROSS THE PIEDMONT AND FOOTHILLS OF VA AND NRN
NC MAY FORM A COOL POOL THAT OOZES SOUTH AND SOUTHWESTWARD
OVERNIGHT...PERHAPS ALONG CONVECTIVE OUTFLOWS. THIS IN EFFECT WILL
FORM A SORT OF IN-SITU WEDGE INTO THE FCST AREA...WHICH SHOULD
GRADUALLY PUSH S AND SW INTO SATURDAY MORNING. THE PROBLEM IS THE
E/NE FLOW IS FAIRLY DEEP AND THERE WILL NOT BE ANY ISENTROPIC LIFT
OR LLVL WARM ADVECTION OVER THE TOP OF A STABLE BOUNDARY LAYER TO
MAINTAIN IT. AS A RESULT...ON SATURDAY WE ARE LEFT WITH BASICALLY A
COOL AND CLOUDY NE FLOW NEAR THE SFC. THE MODELS PUSH PRECIP
PRODUCTION DOWN INTO NE GEORGIA AND ACROSS THE MTNS BY AFTERNOON.
WILL HEDGE AND KEEP AT LEAST A SLIGHT CHC OVER THE WRN NC PIEDMONT.
THIS WILL MAKE THE HIGH TEMP FCST TRICKY. NOT CONVINCED TEMPS WILL
REMAIN BELOW GUIDANCE...SO HAVE NUDGED THEM UP A BIT OVER THE
PIEDMONT.

&&

.SHORT TERM /SATURDAY NIGHT THROUGH MONDAY/...
AS OF 200 PM FRI...LITTLE IMPACTFUL CHANGE IS EXPECTED IN THE
OVERALL SFC/UPPER PATTERN OVER THE PERIOD. HIGH PRESSURE OVER THE
NE CONUS WILL WEAKEN SLOWLY AND MOVE OFFSHORE UNDER THE INFLUENCE
OF FALLING HEIGHTS OVER THE MIDWEST. NORTHEASTERLY TO EASTERLY
FLOW WILL CONTINUE INTO THE CAROLINAS ON THE SRN PERIPHERY OF
THE HIGH. THE MAIN EFFECT WILL BE TO MAINTAIN LOW TO MID LEVEL
MOISTURE TRANSPORT FROM THE ATLANTIC...BUT ONLY SLIGHT UPSLOPE
FORCING DUE TO THE WEAK WINDS. POPS ARE WARRANTED MAINLY ON ACCOUNT
OF INSTABILITY...BUT THE USUAL MODEL DIFFERENCES BETWEEN THE GFS
AND NAM ARE SEEN. THE NAM DEPICTS THE EASTERLY WINDS MAINTAINING
A MIXED LAYER ATOP THE BOUNDARY LAYER...FROM WHICH PARCELS WILL
REMAIN BUOYANT OVERNIGHT. GFS SHOWS THIS BEING LESS EFFECTIVE AND
ALSO SHOWS POORER MIDLEVEL LAPSE RATES. NEVERTHELESS SLIGHT CHANCE
NOCTURNAL POPS WITH SLIGHT FAVORITISM TOWARD THE BLUE RIDGE ARE
APPROPRIATE. AFTERNOON CAPE IS EXPECTED TO BE GREATER SUNDAY THAN
MONDAY AND SO THE HIGHEST OVERALL POPS ARE INCLUDED THEN.

MAX TEMPS WILL BE A DEGREE OR TWO BELOW CLIMO SUNDAY BUT REBOUND
TO ABOUT CLIMO ON MONDAY WITH AIRMASS MODIFICATION. MIN TEMPS WILL
BE SLIGHTLY ABOVE CLIMO WITH NOCTURNAL CLOUD COVER.

&&

.LONG TERM /MONDAY NIGHT THROUGH FRIDAY/...
AT 150 PM EDT FRIDAY...STARTING MONDAY NIGHT THE 500MB PATTERN HAS
A SHALLOW RIDGE OVER THE SOUTHEAST STATES WITH A TROUGH AXIS OVER THE
WESTERN DAKOTAS AND PROGRESSING EAST IMPINGING ON THE SE RIDGE.  THE
RIDGE WILL FLATTEN OUT THROUGH MID WEEK THEN THE TROUGH DIGS OVER
THE SE WITH AXIS BECOMING ESTABLISHED JUST WEST OF THE APPALACHIANS
BY LATE FRIDAY.  RIDGE WILL BUILD AT WEEKS END OVER THE FAR WEST.

AT THE SURFACE...HIGH PRESSURE WILL BE OVER THE CAROLINAS AND MID
ATLANTIC TUESDAY THEN DRIFTS EAST AS COLD FRONT CROSSES THE MISS
VALLEY. THIS COLD FRONT REACHES THE OHIO VALLEY BY THURSDAY AND WILL
BE CROSSING OUR AREA BY FRIDAY.  SCATTERED CONVECTION WILL INCREASE
AS THE FRONT GETS CLOSER LATE IN THE WEEK.

OVERALL...THE INSTABILITY WILL BE MODEST AT BEST.  CAPE
VALUES AROUND 1000 ON THE GFS FOR PIEDMONT GA AND SC LATE
TUESDAY...WEAKER VALUES WED AND 700 TO 1000 THURSDAY AND FRIDAY.
WIND SPEEDS IN THE LOW TO MID LEVELS NOT EXCESSIVE AS H8GHER WINDS
AT THE END OF THE WEEK IN THE TROUGH.  EVEN THEN THE 700MB WIND WILL
BE AROUND 20 KTS WHICH IS FAIRLY LIGHT.

TEMPS A LITTLE ABOVE NORMAL IN MID WEEK...DIPPING TO A LITTLE BELOW
NORMAL NEXT WEEKEND WITHIN THE TROUGH.

&&

.AVIATION /19Z FRIDAY THROUGH WEDNESDAY/...
AT KCLT...SEEING SOME STORMS INITIATE TO THE EAST WHERE SATELLITE
IMAGERY HAD SOME ENHANCED CU. THIS ACTIVITY SHOULD WORK ITS WAY INTO
THE CLT METRO AREA THRU MID AFTERNOON. PREVIOUS AMEND INTRODUCED A
TEMPO AT 21Z FOR TSRA AND THINK THAT TIMING STILL LOOKS OK FOR THE
MOST PART...AS WE NEED TO SPECIFY A FOUR HOUR WINDOW...BUT THIS
COULD EASILY NEED TO BE AMENDED AGAIN BEFORE THAT. AFTER A ROUND OF
STORMS MOVES THRU THE AREA...WILL KEEP ONLY CONVECTIVE DEBRIS ACROSS
THE REGION OVERNIGHT...WITH A LIGHT NE WIND. THE MODEL GUIDANCE
SUGGESTS BRINGING A LOW CLOUD DECK DOWN FROM THE NE IN THE EARLY
MORNING HOURS. A SIMILAR EVOLUTION OCCURS IN MOST SITUATIONS LIKE
THIS...WITH PLENTY OF MOISTURE...AND EASTERLY COMPONENT TO THE LOW
LEVEL FLOW...WITH HIGH PRESSURE TO THE NE. THE LAMP GUIDANCE WAS
GENERALLY ACCEPTED...BUT CEILINGS WERE KEPT TO MVFR ACROSS THE WRN
PIEDMONT OF NC. LATER TAFS WILL HAVE TO ADDRESS THE POSSIBILITY OF
IFR CEILINGS AROUND DAYBREAK...BUT FOR NOW IT IS MORE LIKELY TO STAY
MVFR. ON SATURDAY...LOW CLOUD BASE WILL GRADUALLY RISE TO VFR AS
BOUNDARY LAYER DEEPENS. ADDITIONAL SHOWERS OR STORMS SHOULD DEVELOP
WITH HEATING AROUND MIDDAY.

ELSEWHERE...SCATTERED STORMS WILL FORM FIRST ACROSS THE HIGHER
TERRAIN AND THEN SLOWLY DEVELOP DOWN ACROSS THE REST OF THE FCST
AREA THRU EARLY EVENING. CONFIDENCE ONLY HIGH ENUF AT KAVL/KHKY TO
INCLUDE A TEMPO FOR NOW. THE UPSTATE SC TAF SITES WERE LIMITED TO
VCTS/PROB30 BASED ON LACK OF COVERAGE IN CONVECTION ALLOWING MODELS.
THERE COULD BE A ROUND OF SHOWERS IN THE EARLY MORNING SATURDAY AS A
BACK DOOR SFC BOUNDARY MOVES DOWN FROM THE NE...BUT CONFIDENCE NOT
HIGH ENUF TO MENTION. EXPECT VALLEY FOG TO FORM AT KAVL IN THE PRE-
DAWN HOURS...MOST LIKELY RESTRICTING VSBY TO MVFR...UNLESS PRECIP
FALLS THERE TODAY. THINK LOW CLOUD CEILING WILL REACH KHKY SATURDAY
MORNING...BUT GET HUNG UP MOVING SW AS SUN STARTS TO WARM ATMOSPHERE
AFTER 12Z. WIND SHOULD REMAIN N TO NE THRU THE PERIOD. MORE SHOWERS
CAN BE EXPECTED WITH HEATING ON SATURDAY.

OUTLOOK...A MOIST EASTERLY FLOW WILL CONTINUE THRU SUNDAY...BRINGING
A GOOD CHANCE OF IFR/MVFR RESTRICTIONS SATURDAY NIGHT AND SUNDAY
MORNING. LIGHT PRECIP WILL REMAIN POSSIBLE. THE THREAT FOR
RESTRICTIONS WILL CONTINUE THRU SUNDAY NIGHT. DRY AIR WORKING IN
FROM THE E ON MONDAY WILL BEGIN TO DIMINISH THE THREAT FOR EARLY
NEXT WEEK.

CONFIDENCE TABLE...

            19-01Z        01-07Z        07-13Z        13-18Z
KCLT       HIGH 100%     HIGH 100%     MED   69%     HIGH  80%
KGSP       HIGH 100%     HIGH 100%     HIGH 100%     HIGH 100%
KAVL       HIGH 100%     HIGH 100%     HIGH  80%     HIGH  93%
KHKY       HIGH 100%     HIGH 100%     MED   76%     HIGH  81%
KGMU       HIGH 100%     HIGH 100%     HIGH 100%     HIGH 100%
KAND       HIGH 100%     HIGH 100%     HIGH  86%     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

&&

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

&&

SYNOPSIS...DEO
NEAR TERM...PM
SHORT TERM...WIMBERLEY
LONG TERM...DEO
AVIATION...PM
Hazardous weather outlook, Sep 4, 11:27 AM EDT, 3 hours 58 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1127 AM EDT FRI SEP 4 2015

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-051530-
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-
1127 AM EDT FRI SEP 4 2015

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THUNDERSTORMS ARE IN FORECAST THIS AFTERNOON AND TONIGHT. THE MAIN
HAZARD FROM MOST STORMS WILL BE CLOUD TO GROUND LIGHTNING.
HOWEVER...A FEW OF THE THUNDERSTORMS MAY BECOME STRONG TO SEVERE
WITH DAMAGING WIND GUSTS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

..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.
..WEDNESDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..THURSDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

NONE.

In the hours before

Special weather statement, Sep 4, 2:52 PM EDT, 33 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
252 PM EDT FRI SEP 4 2015

NCZ053-041915-
BUNCOMBE NC-
252 PM EDT FRI SEP 4 2015

...STRONG THUNDERSTORM WILL IMPACT PORTIONS OF SOUTH CENTRAL BUNCOMBE
COUNTY UNTIL 315 PM EDT...

AT 252 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 6
MILES SOUTHEAST OF DOWNTOWN ASHEVILLE...OR NEAR B.R. PARKWAY-NC
ARBORETUM TO EAST ASHEVILLE...MOVING SOUTH AT 5 MPH.

PEA SIZE HAIL AND WIND GUSTS UP TO 40 MPH WILL BE POSSIBLE WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
ARDEN...FAIRVIEW IN BUNCOMBE COUNTY...SKYLAND...B.R. PARKWAY-NC
ARBORETUM TO EAST ASHEVILLE...ASHEVILLE AIRPORT...BILTMORE FOREST AND
EAST ASHEVILLE.

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 3549 8237 3546 8237 3547 8242 3545 8247
      3545 8253 3543 8253 3542 8254 3543 8254
      3544 8255 3544 8256 3545 8256 3556 8253
      3557 8243
TIME...MOT...LOC 1852Z 352DEG 5KT 3552 8248

CDG
Special weather statement, Sep 4, 3:00 PM EDT, 25 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
300 PM EDT FRI SEP 4 2015

SCZ012-041930-
LAURENS SC-
300 PM EDT FRI SEP 4 2015

...STRONG THUNDERSTORM WILL IMPACT PORTIONS OF SOUTH CENTRAL LAURENS
COUNTY UNTIL 330 PM EDT...

AT 300 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 6
MILES SOUTHEAST OF LAURENS...OR 5 MILES SOUTHWEST OF CLINTON...MOVING
SOUTH AT 5 MPH.

PEA SIZE HAIL AND WIND GUSTS UP TO 40 MPH WILL BE POSSIBLE WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
CLINTON AND MOUNTVILLE.

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.

&&

LAT...LON 3447 8202 3448 8188 3435 8183 3434 8184
      3433 8204
TIME...MOT...LOC 1900Z 354DEG 6KT 3443 8195

CDG
Special weather statement, Sep 4, 3:06 PM EDT, 19 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
306 PM EDT FRI SEP 4 2015

NCZ071-072-082-041930-
CABARRUS NC-UNION NC-MECKLENBURG NC-
306 PM EDT FRI SEP 4 2015

...STRONG THUNDERSTORM WILL IMPACT PORTIONS OF EAST CENTRAL
MECKLENBURG...NORTHEASTERN UNION AND SOUTH CENTRAL CABARRUS COUNTIES
UNTIL 330 PM EDT...

AT 306 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 13
MILES SOUTHEAST OF EAST CONCORD...OR NEAR MIDLAND...MOVING SOUTH AT 5
MPH.

HALF INCH HAIL AND WIND GUSTS UP TO 45 MPH WILL BE POSSIBLE WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
UNIONVILLE...FAIRVIEW IN UNION COUNTY...MIDLAND...MINT HILL...HEMBY
BRIDGE...MATTHEWS...STALLINGS AND NEW SALEM.

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 3505 8038 3513 8069 3533 8055 3529 8043
      3521 8048 3519 8051 3518 8050 3518 8048
      3517 8047 3516 8044 3517 8042 3516 8041
      3518 8037 3517 8036
TIME...MOT...LOC 1906Z 018DEG 6KT 3524 8048

CDG
Special weather statement, Sep 4, 3:10 PM EDT, 15 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
310 PM EDT FRI SEP 4 2015

SCZ013-041945-
UNION SC-
310 PM EDT FRI SEP 4 2015

...STRONG THUNDERSTORM WILL IMPACT PORTIONS OF SOUTHEASTERN UNION
COUNTY UNTIL 345 PM EDT...

AT 310 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 11
MILES SOUTHEAST OF UNION...OR NEAR CARLISLE...MOVING SOUTH AT 5 MPH.

PEA SIZE HAIL AND WIND GUSTS UP TO 40 MPH WILL BE POSSIBLE WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
CARLISLE AND SANTUC.

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 3446 8156 3448 8155 3451 8161 3453 8162
      3464 8157 3463 8142 3458 8143 3450 8142
      3450 8144 3449 8144 3449 8149 3445 8154
TIME...MOT...LOC 1910Z 005DEG 6KT 3460 8150

CDG
Special weather statement, Sep 4, 3:18 PM EDT, 7 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
318 PM EDT FRI SEP 4 2015

NCZ049-050-041945-
YANCEY NC-MITCHELL NC-
318 PM EDT FRI SEP 4 2015

...STRONG THUNDERSTORM WILL IMPACT PORTIONS OF NORTHEASTERN MITCHELL
AND NORTHEASTERN YANCEY COUNTIES UNTIL 345 PM EDT...

AT 317 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 9
MILES NORTHWEST OF SPRUCE PINE...OR NEAR BAKERSVILLE...MOVING SOUTH
AT 5 MPH.

PEA SIZE HAIL AND WIND GUSTS UP TO 40 MPH WILL BE POSSIBLE WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
BAKERSVILLE...BANDANA...GREEN MOUNTAIN AND BULADEAN.

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.

&&

LAT...LON 3611 8213 3611 8210 3610 8208 3607 8207
      3602 8204 3601 8204 3601 8205 3599 8206
      3594 8204 3597 8231 3615 8220 3614 8218
      3615 8215
TIME...MOT...LOC 1917Z 004DEG 6KT 3603 8215

CDG
Special weather statement, Sep 4, 3:21 PM EDT, 4 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
321 PM EDT FRI SEP 4 2015

NCZ053-505-041945-
BUNCOMBE NC-MCDOWELL MOUNTAINS NC-
321 PM EDT FRI SEP 4 2015

...STRONG THUNDERSTORM WILL IMPACT PORTIONS OF NORTHEASTERN BUNCOMBE
AND SOUTHWESTERN MCDOWELL COUNTIES UNTIL 345 PM EDT...

AT 321 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 15
MILES WEST OF MARION...OR 4 MILES SOUTHWEST OF B.R. PARKWAY-CRAGGY TO
LITTLE SWITZERLAND...MOVING SOUTH AT 10 MPH.

PEA SIZE HAIL AND WIND GUSTS UP TO 40 MPH WILL BE POSSIBLE WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
BLACK MOUNTAIN...SWANNANOA...B.R. PARKWAY-CRAGGY TO LITTLE
SWITZERLAND...OLD FORT AND MONTREAT.

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 3573 8231 3573 8229 3571 8228 3570 8228
      3570 8226 3573 8221 3557 8216 3558 8241
      3574 8237 3574 8232
TIME...MOT...LOC 1921Z 003DEG 8KT 3569 8228

CDG

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 4, 1:42 PM EDTSpecial Weather StatementGSPTransylvania33 min
Sep 4, 2:23 PM EDTSpecial Weather StatementGSPAvery37 min
Sep 4, 2:24 PM EDTSpecial Weather StatementGSPMcDowell36 min
Sep 4, 2:41 PM EDTSpecial Weather StatementGSPMitchell34 min
Sep 4, 2:47 PM EDTSpecial Weather StatementGSPMcDowell28 min
Sep 4, 2:52 PM EDTSpecial Weather StatementGSPBuncombe23 min
Sep 4, 3:06 PM EDTSpecial Weather StatementGSPUnion24 min
Sep 4, 3:18 PM EDTSpecial Weather StatementGSPMitchell27 min
Sep 4, 3:21 PM EDTSpecial Weather StatementGSPMcDowell24 min
Sep 4, 3:41 PM EDTSpecial Weather StatementGSPMacon34 min
Sep 4, 3:49 PM EDTSpecial Weather StatementGSPMecklenburg41 min
Sep 4, 4:12 PM EDTSpecial Weather StatementGSPBuncombe33 min
Sep 4, 4:25 PM EDTSpecial Weather StatementGSPBuncombe50 min
Sep 4, 4:34 PM EDTSpecial Weather StatementGSPBurke26 min
Sep 4, 4:47 PM EDTSpecial Weather StatementGSPPolk43 min
Sep 4, 5:03 PM EDTSpecial Weather StatementGSPHaywood27 min
Sep 4, 5:09 PM EDTSpecial Weather StatementGSPBurke36 min
Sep 4, 5:13 PM EDTSevere Thunderstorm WarningGSPBurke29 min
Sep 4, 5:24 PM EDTSpecial Weather StatementGSPPolk51 min
Sep 4, 5:34 PM EDTSpecial Weather StatementGSPHaywood26 min
Sep 4, 5:36 PM EDTSpecial Weather StatementGSPLincoln24 min
Sep 4, 5:40 PM EDTSpecial Weather StatementGSPDavie50 min
Sep 4, 5:46 PM EDTSpecial Weather StatementGSPRowan29 min
Sep 4, 5:53 PM EDTAreal Flood AdvisoryGSPHaywood3 hr
Sep 4, 6:12 PM EDTSevere Thunderstorm WarningGSPCabarrus, Rowan48 min
Sep 4, 6:42 PM EDTSpecial Weather StatementGSPCabarrus48 min
Sep 4, 6:59 PM EDTSpecial Weather StatementGSPMecklenburg46 min
Sep 4, 7:29 PM EDTSevere Thunderstorm WarningGSPUnion46 min
Sep 4, 7:33 PM EDTSpecial Weather StatementGSPMecklenburg27 min
Sep 4, 7:47 PM EDTSpecial Weather StatementGSPAlexander28 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.