Alert archive / Georgia / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 100, NWS Greenville-Spartanburg, SC

April 17, 2012Habersham County, Rabun County, Stephens County, Georgia; Oconee County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Apr 17, 2012, 7:47 PM EDT for Habersham County, Rabun County, Stephens County, Georgia; Oconee County, South Carolina. It was in force for 73 min. 1 report 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 17, 2012, 7:47 PM EDT (23:47 UTC)
Expired: Apr 17, 2012, 9:00 PM EDT
In force: 73 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon

Counties Habersham County, GA, Rabun County, GA, Stephens County, GA, Oconee County, SC

The radar

The Greer radar (KGSP), 83 km from the middle of the area, began a volume at 23:49 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 17, 8:18 PM EDT	HAIL 1	9 Wsw Walhalla, SC	QUARTER SIZED HAIL FELL HALFWAY BETWEEN WESTMINISTER AND LONG CREEK.

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 one storm report to this severe thunderstorm warning; the first came 31 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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 11.8 hours before the alert went out and 204 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 371 J/kg
Mixed-layer CIN: -19 J/kg
Mixed-layer LCL: 618 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 30 m²/s²
0-3 km storm-relative helicity: 43 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

223 
WUUS52 KGSP 172347
SVRGSP
GAC137-241-257-SCC073-180100-
/O.NEW.KGSP.SV.W.0100.120417T2347Z-120418T0100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
747 PM EDT TUE APR 17 2012

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EAST CENTRAL HABERSHAM COUNTY IN NORTHEAST GEORGIA...
  RABUN COUNTY IN NORTHEAST GEORGIA...
  STEPHENS COUNTY IN NORTHEAST GEORGIA...
  OCONEE COUNTY IN UPSTATE SOUTH CAROLINA...

* UNTIL 900 PM EDT

* AT 745 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE
  LOCATED ALONG A LINE EXTENDING FROM LAKE RABUN TO TOCCOA...AND
  MOVING NORTHEAST AT 30 MPH.

* SEVERE THUNDERSTORMS WILL IMPACT LOCATIONS NEAR...
  LAKE HARTWELL.
  CLAYTON.
  MOUNTAIN CITY AND LONG CREEK.
  WESTMINSTER.
  DILLARD.
  WALHALLA.
  PINE MOUNTAIN AND MOUNTAIN REST.
  LAKE KEOWEE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT DAMAGING WINDS...HAIL...OR FLOODING THROUGH OUR AUTOMATED
REPORTING SYSTEM...CALL TOLL FREE...1 8 7 7...6 3 3...6 7 7 2.

&&

LAT...LON 3499 8342 3500 8311 3505 8291 3501 8292
      3499 8294 3497 8292 3492 8290 3454 8303
      3453 8308 3453 8311 3451 8314 3448 8324
      3474 8358
TIME...MOT...LOC 2347Z 215DEG 24KT 3478 8343 3462 8331

$$

NED

2 follow-up statements

839 
WWUS52 KGSP 180013
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
813 PM EDT TUE APR 17 2012

GAC137-257-180024-
/O.CAN.KGSP.SV.W.0100.000000T0000Z-120418T0100Z/
STEPHENS GA-HABERSHAM GA-
813 PM EDT TUE APR 17 2012

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL HABERSHAM AND
STEPHENS COUNTIES IS CANCELLED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS MOVED OUT OF THIS 
AREA.

LAT...LON 3499 8342 3500 8311 3505 8291 3501 8292
      3499 8294 3497 8292 3491 8290 3454 8303
      3453 8310 3458 8316 3461 8316 3461 8322
      3478 8346
TIME...MOT...LOC 0014Z 215DEG 24KT 3493 8330 3477 8318

$$

GAC241-SCC073-180100-
/O.CON.KGSP.SV.W.0100.000000T0000Z-120418T0100Z/
RABUN GA-OCONEE SC-
813 PM EDT TUE APR 17 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR OCONEE AND
EASTERN RABUN COUNTIES UNTIL 900 PM EDT...

AT 809 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM MOUNTAIN CITY TO LONG CREEK...
MOVING NORTHEAST AT 30 MPH.

SEVERE THUNDERSTORMS WILL IMPACT LOCATIONS NEAR...
  WALHALLA AND MOUNTAIN REST.
  PINE MOUNTAIN.
  LAKE KEOWEE.
  SALEM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT DAMAGING WINDS...HAIL...OR FLOODING THROUGH OUR AUTOMATED
REPORTING SYSTEM...CALL TOLL FREE...1 8 7 7...6 3 3...6 7 7 2.

&&

LAT...LON 3499 8342 3500 8311 3505 8291 3501 8292
      3499 8294 3497 8292 3491 8290 3454 8303
      3453 8310 3458 8316 3461 8316 3461 8322
      3478 8346
TIME...MOT...LOC 0014Z 215DEG 24KT 3493 8330 3477 8318

$$

NED

837 
WWUS52 KGSP 180040
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
840 PM EDT TUE APR 17 2012

GAC241-180050-
/O.CAN.KGSP.SV.W.0100.000000T0000Z-120418T0100Z/
RABUN GA-
840 PM EDT TUE APR 17 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN RABUN COUNTY IS
CANCELLED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS MOVED OUT OF THIS 
AREA.

LAT...LON 3494 8313 3494 8312 3495 8313 3499 8310
      3500 8310 3505 8291 3501 8292 3499 8294
      3497 8292 3490 8290 3466 8299 3465 8316
      3484 8327
TIME...MOT...LOC 0040Z 215DEG 24KT 3493 8311 3477 8299

$$

SCC073-180100-
/O.CON.KGSP.SV.W.0100.000000T0000Z-120418T0100Z/
OCONEE SC-
840 PM EDT TUE APR 17 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL OCONEE
COUNTY UNTIL 900 PM EDT...

AT 837 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM MOUNTAIN REST TO WALHALLA...
MOVING NORTHEAST AT 30 MPH.

SEVERE THUNDERSTORMS WILL IMPACT LOCATIONS NEAR...
  LAKE KEOWEE AND SALEM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT DAMAGING WINDS...HAIL...OR FLOODING THROUGH OUR AUTOMATED
REPORTING SYSTEM...CALL TOLL FREE...1 8 7 7...6 3 3...6 7 7 2.

&&

LAT...LON 3494 8313 3494 8312 3495 8313 3499 8310
      3500 8310 3505 8291 3501 8292 3499 8294
      3497 8292 3490 8290 3466 8299 3465 8316
      3484 8327
TIME...MOT...LOC 0040Z 215DEG 24KT 3493 8311 3477 8299

$$

NED

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 Apr 17, 4:29 PM EDT, 3 hours 18 minutes earlier.

Area forecast discussion, Apr 17, 4:29 PM EDT, 3 hours 18 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
429 PM EDT TUE APR 17 2012

.SYNOPSIS...
MOISTURE WILL SPREAD NORTHEAST AS A FRONT DRIFTS INTO THE WESTERN
CAROLINAS AND NORTHEAST GEORGIA. THIS FRONT WILL LINGER IN THE AREA
BRINGING MUCH NEEDED RAIN THROUGH WEDNESDAY. THE FRONT WILL
DEPART...AND WEAK HIGH PRESSURE WILL MOVE ACROSS THE AREA ON
THURSDAY AND FRIDAY. ANOTHER FRONT WILL ARRIVE ON SATURDAY. LOW
PRESSURE DEVELOPING ON THE FRONT WILL PASS NEAR THE AREA ON SUNDAY.
DRYING WILL OCCUR BEHIND THE DEPARTING LOW ON MONDAY.

&&

.NEAR TERM /THROUGH WEDNESDAY/...
AS OF 425 PM...MOST CONVECTION REMAINS LIMITED TO THE NC AND NE GA
MTNS. A FEW CELLS HAVE DEVELOPED OVER THE SAV RIVER...AND CELLS MAY
FILL IN EARLY ACROSS NE GA AND THE WRN UPSTATE WHERE INSTABILITY IS
HIGHEST. CONVECTION SHUD THEN SPREAD/DEVELOP EASTWARD INTO THE ERN
UPSTATE AND NC FOOTHILLS/PIEDMONT. HAVE MODIFIED POPS TO SHOW THIS
TREND. ADJUSTED REST OF THE FIELDS FOR CURRENT CONDITIONS AS WELL.
EFFECTIVE SHEAR IS AROUND 35 KTS OVER THE MTNS AND WRN UPSTATE...
WHERE HIGHEST CAPES ARE AS WELL. EXPECT BEST CHC FOR ANY ADDITIONAL
SVR STORMS TO BE IN THESE LOCATIONS.

AS OF 200 PM...AS EXPECTED...THE COLD FRONT HAS STALLED ACRS ROUGHLY
THE I-85 CORRIDOR THIS AFTN...WITH CONVECTIVE CU DEVELOPING. THE
HIGH RES MODELS ARE IN DECENT AGREEMENT ON CONVECTION FIRING ALONG
THE HIGH TERRAIN (WHICH STARTED IN THE LAST HOUR)...THEN NEW
DEVELOPMENT INVOF THE FRONT AND ALSO ALONG OUTFLOW OFF THE BLUE
RIDGE LATER THIS AFTN THRU THIS EVENING. STILL A MARGINAL SEVERE
THREAT MAINLY ACRS THE UPSTATE AND NE GA WHERE INSTBY IS GREATEST.
FREEZING LEVELS WERE OBSERVED AROUND 12 KFT ON 12Z SNDGS WITH VERY
DRY MID-UPR LEVELS. SO FIRST GUESS CORE HEIGHTS OF 22.5 TO 23 KFT
FOR 55DBZ SEEMS GOOD FOR LARGE HAIL AND DAMAGING WINDS. EFFECTIVE
SHEAR ON THE SPC MESOANALYSIS PAGE BARELY 30 KTS...SO LIMITED
ORGANIZATIONAL POTENTIAL. WITH THAT SAID...SLIGHT RISK AREA STILL
LOOKS GOOD.

TONIGHT AND WEDNESDAY...AN AREA OF STRONG QG FORCING AND JET
DIVERGENCE WILL OVERSPREAD THE CWFA FROM THE WEST...MAXING OUT
AROUND 12Z WED. A LLVL WAVE IS PROGGED TO DEVELOP INVOF CENTRAL GULF
STATES...INCREASING A SELY LLVL FLOW ATOP A STRENGTHENING COLD AIR
DAMMING (CAD) WEDGE. THINGS LOOK LINED UP WELL FOR CATEGORICAL POPS
AND DECENT QPF LATE TONIGHT INTO WEDNESDAY MORNING. TAKING A BLEND
OF MODEL QPF AND HPC RESULTS IN GENERALLY 1.0 TO 1.5" OF RAIN THRU
WEDNESDAY AFTN. RAIN SHUD REALLY BEGIN TO TAPER OFF TOWARD END OF
AFTN AS FORCING SHIFTS EAST OF THE AREA. TEMPS ARE TRICKY WITH
CLOUDS AND PRECIP AND CAD. I TRIED BLENDING STRAIGHT NAM WITH BC MOS
GRIDS...WHICH MAY STILL BE TOO WARM ALONG AND SOUTH OF I-85. TEMPS
DROP INTO THE 50S OVERNIGHT AND ONLY RISE 5-8 DEGREES WEDNESDAY.

&&

.SHORT TERM /WEDNESDAY NIGHT THROUGH FRIDAY/...
AT 130 PM TUESDAY...DEEPER MOISTURE AND WARM CONVEYOR BELT FLOW WILL
BE SHIFTING EAST ACRS THE CWFA WEDNESDAY NIGHT STEADILY DWINDLING
SHOWER CHANCES. CLOUDINESS SHOULD REMAIN CONSIDERABLE INTO THURSDAY
MORNING WITH LINGERING SFC WEDGE BUT MODEL TIMEHEIGHTS DEPICT ENUF
MIXING TO ALLOW SUNSHINE TO RETURN WARMING TEMPERATURES TO A FEW
DEGREES ABOVE THE MID-APRIL CLIMO IN THE AFTERNOON. BROADENING
RETURN FLOW AND THE ONSET ON GULF TAP IS EXPECTED FOR FRIDAY AS MAX
TEMPERATURES ARE SLATED TO BE 6-8 DEG F ABOVE CLIMO. LACK OF
INHIBITION AND DESTABILIZING ATMOSPHERE SHOULD BE ABLE TO PROMOTE
DIURNAL TSTM ACTIVITY...ESPECIALLY ACRS THE MTNS.

&&

.LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/...
AT 1105 AM TUESDAY...THE POTENTIAL REMAINS FOR A PERIOD OF ACTIVE WX
SATURDAY INTO SUNDAY FEATURING PROGRESSIVE UPPER HEIGHT FALLS ATOP
THE SE CONUS AND AN INCREASE IN DEEP LAYERED FORCING DOWNSTREAM OF
L/WV TROUGH AXIS AND GULF COAST CLOSED UPPER LOW. ATTENDANT SFC BNDRY
WILL ALSO BE SAGGING SE INTO THE CWFA. IN CONCERT WITH MODERATE
MOISTURE TRANSPORT FROM THE GULF...DEEP CONVECTIVE ACTIVITY SHOULD
BE NUMEROUS AND THERE IS THE POTENTIAL FOR AREAS OF HEAVY RAIN TO
FALL.

THE LATEST MEDIUM RANGE MODELS ABSORB CLOSED UPPER LOW INTO THE MEAN
FLOW BY MONDAY AND PATTERN PROGRESSION SHOULD TRANSLATE SFC FRONT TO
THE COAST. IF THE 17/00 UTC RUN OF THE ECMWF IS IN THE BALLPARK...A
PERIOD OF BLUSTERY AND COOLER CONDITIONS WITH WRAP-AROUND SHOWER
CHANCES SHOULD EXIST ON MONDAY. IT REMAINS TO BE SEEN HOW QUICKLY
EASTERN CONUS L/WV TROUGH LIFTS OUT BY THE END OF THE PERIOD...BUT
AT THIS POINT...AN EFFECTIVELY DRY FCST AND BELOW NORMAL
TEMPERATURES ARE ON TAP.

&&

.AVIATION /21Z TUESDAY THROUGH SUNDAY/...
AT KCLT...STILL EXPECTING SHRA AND TSRA TO DEVELOP ACRS THE AREA
THIS AFTN AND CONTINUE INTO THE EVENING HOURS...STARTING IN THE NC
MTNS AND THEN NEAR A STALLED FRONTAL BNDRY WHICH IS INVOF THE
TERMINAL. CONFIDENCE IS HIGH ENUF TO KEEP A VCTS MENTION FOR THE 23Z
TO 02Z TIME FRAME. STORMS WILL LIKELY FIRE EARLIER AND LINGER
LATER...BUT THIS IS WINDOW OF HIGHEST PROB ATTM. WINDS MAY BE
VARIABLE THRU EARLY EVENING DUE TO THE CLOSE PROXIMITY OF THE FRONT
AND OUTFLOWS FROM NEARBY CONVECTION. LATER THIS EVENING THRU MIDDAY
WEDNESDAY...THE FRONT WILL PUSH SOUTH...ALLOWING A NE WIND TO
PREDOMINATE AND TS CHCS DECREASE. HOWEVER...WIDESPREAD RA/SHRA TO
OVERSPREAD THE AREA WITH LOWERING CIGS AND VSBY TO POSSIBLY IFR BY
END OF THE TAF PERIOD.

ELSEWHERE...A FEW SHRA AND TSRA HAVE DEVELOPED IN THE NC MTNS
ALREADY...WITH ONE CELL JUST WEST OF THE KAVL. COVERAGE SHUD
CONTINUE TO INCREASE ACRS THE ENTIRE AREA THRU THE AFTN AND LINGER
INTO THE EVENING HOURS. HAVE VCTS MENTION AT ALL SITES EXCEPT KHKY
FOR THE TIME PERIODS OF HIGHEST PROB OF TS. A COLD FRONT WILL PUSH
SOUTH OF THE AREA OVERNIGHT...TURNING WINDS TO NE AND DECREASING TS
CHC...BUT WIDESPREAD RA/SHRA WILL OVERSPREAD THE AREA WITH LOWERING
CIGS AND VSBY TO LIKELY IFR AT ALL SITES BY END OF TAF PERIOD.

OUTLOOK...CONTINUED WIDESPREAD SHOWERS AND RESTRICTIONS ARE LIKELY
INTO WED...WITH A LINGERING MOIST BOUNDARY LAYER LIKELY CREATING IFR
RESTRICTIONS WED NIGHT BEFORE DRYING BEGINS IN EARNEST THU. EXPECT
MAINLY VFR CONDITIONS THROUGH FRI...EXCEPT FOR POSSIBLE EARLY
MORNING FOG. ANOTHER COLD FRONT WILL LIKELY BRING PRECIPITATION AND
RESTRICTIONS BACK INTO THE AREA OVER THE WEEKEND.

AN EXPERIMENTAL AVIATION FORECAST CONSISTENCY TABLE SHOWING THE
PERCENTAGE OF GUIDANCE MEMBERS AGREEING WITH THE SCHEDULED ISSUANCE
CATEGORY IS AVAILABLE AT FOLLOWING LINK (USE LOWER CASE)...

WWW.WEATHER.GOV/GSP/AVIATION/TABLES.HTM

&&

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

&&

SYNOPSIS...PAT
NEAR TERM...ARK/RWH
SHORT TERM...CSH
LONG TERM...CSH
AVIATION...ARK

Hazardous weather outlook, Apr 17, 3:22 PM EDT, 4 hours 25 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
322 PM EDT TUE APR 17 2012

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-181930-
RABUN-HABERSHAM-STEPHENS-FRANKLIN-HART-ELBERT-AVERY-ALEXANDER-
IREDELL-DAVIE-MADISON-YANCEY-MITCHELL-SWAIN-HAYWOOD-BUNCOMBE-CATAWBA-
ROWAN-GRAHAM-NORTHERN JACKSON-MACON-SOUTHERN JACKSON-TRANSYLVANIA-
HENDERSON-CLEVELAND-LINCOLN-GASTON-MECKLENBURG-CABARRUS-UNION NC-
CALDWELL MOUNTAINS-GREATER CALDWELL-BURKE MOUNTAINS-GREATER BURKE-
MCDOWELL MOUNTAINS-EASTERN MCDOWELL-RUTHERFORD MOUNTAINS-
GREATER RUTHERFORD-POLK MOUNTAINS-EASTERN POLK-OCONEE MOUNTAINS-
PICKENS MOUNTAINS-GREENVILLE MOUNTAINS-GREATER OCONEE-
GREATER PICKENS-GREATER GREENVILLE-SPARTANBURG-CHEROKEE-YORK-
ANDERSON-ABBEVILLE-LAURENS-UNION SC-CHESTER-GREENWOOD-
322 PM EDT TUE APR 17 2012

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THUNDERSTORM COVERAGE WILL EXPAND FROM THE MOUNTAINS AND INTO
THE FOOTHILLS AND PIEDMONT THROUGH THIS EVENING. ANY THUNDERSTORM
WILL HAVE THE POTENTIAL TO PRODUCE FREQUENT CLOUD TO GROUND
LIGHTNING...BRIEFLY GUSTY WINDS...AND VERY HEAVY RAINFALL. A FEW
THUNDERSTORMS WILL BECOME SEVERE...PRODUCING DAMAGING WIND GUSTS
IN EXCESS OF 60 MPH AND HAIL AS LARGE AS QUARTERS.

WIDESPREAD SHOWERS...WITH ISOLATED TO SCATTERED THUNDERSTORMS...WILL
LIKELY CONTINUE THROUGH THE OVERNIGHT HOURS. LOCALLY HEAVY
RAINFALL WILL BE POSSIBLE...ESPECIALLY ALONG THE EASTERN SLOPES OF
THE MOUNTAINS...AND THE ADJACENT FOOTHILLS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTERS ARE REQUESTED TO FORWARD ANY REPORTS OF LARGE
HAIL...DAMAGING WINDS...TORNADOES OR FLASH FLOODING TO OUR OFFICE.

In the hours before

Special weather statement, Apr 17, 6:48 PM EDT, 59 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
648 PM EDT TUE APR 17 2012

GAZ018-SCZ001-004-172315-
GREATER OCONEE-OCONEE MOUNTAINS-STEPHENS-
648 PM EDT TUE APR 17 2012

...A STRONG THUNDERSTORM WILL AFFECT EASTERN STEPHENS AND SOUTHERN
OCONEE COUNTIES THROUGH 715 PM EDT...

AT 646 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 3 MILES NORTH OF LAKE HARTWELL...OR 12 MILES EAST
OF TOCCOA...MOVING NORTHEAST AT 20 MPH.

THIS STORM WILL BE NEAR...
  WESTMINSTER...

PEOPLE IN EASTERN STEPHENS AND SOUTHERN OCONEE COUNTIES...INCLUDING
THE FOLLOWING LOCATIONS...

LAKE HARTWELL AND WESTMINSTER...

SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE
WARNINGS AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE
WEATHER THREATEN.

MOTHBALL SIZE HAIL...AND WIND GUSTS OF 30 TO 40 MPH ARE EXPECTED WITH
THIS STORM.

LAT...LON 3455 8325 3476 8318 3465 8294 3452 8301
      3454 8310 3450 8315

NED

Special weather statement, Apr 17, 7:07 PM EDT, 40 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
707 PM EDT TUE APR 17 2012

GAZ017-018-172330-
HABERSHAM-STEPHENS-
707 PM EDT TUE APR 17 2012

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN STEPHENS AND
SOUTHERN HABERSHAM COUNTIES THROUGH 730 PM EDT...

AT 703 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR ALTO...OR 9 MILES NORTHWEST OF HOMER...
MOVING NORTHEAST AT 15 MPH.

THIS STORM WILL BE NEAR...
  BALDWIN...
  CORNELIA...
  DEMOREST...

PEOPLE IN NORTHWESTERN STEPHENS AND SOUTHERN HABERSHAM COUNTIES...
INCLUDING THE FOLLOWING LOCATIONS...

BALDWIN...CORNELIA...DEMOREST AND CLARKESVILLE...

SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE
WARNINGS AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE
WEATHER THREATEN.

DIME SIZE HAIL...WIND GUSTS OF 30 TO 40 MPH AND TORRENTIAL RAIN ARE
EXPECTED WITH THIS STORM.

LAT...LON 3454 8362 3458 8364 3460 8365 3472 8359
      3462 8334 3447 8344 3449 8354 3443 8361
      3444 8363 3451 8367

NED

Local storm report, Apr 17, 7:11 PM EDT, 36 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
711 PM EDT TUE APR 17 2012

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

0452 PM     HAIL             2 NNW PATTERSON         36.02N 81.57W
04/17/2012  E0.50 INCH       CALDWELL           NC   PUBLIC

            PEA TO MARBLE SIZED HAIL FELL AND COVERED THE GROUND NEAR
            THE INTERSECTION OF KIRBY MOUNTAIN ROAD AND HIGHWAY 321.
            NOT MUCH WIND.

&&

OUTLAW

Special weather statement, Apr 17, 7:18 PM EDT, 29 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
718 PM EDT TUE APR 17 2012

NCZ049-053-505-172345-
BUNCOMBE-MCDOWELL MOUNTAINS-YANCEY-
718 PM EDT TUE APR 17 2012

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN BUNCOMBE...SOUTHERN
YANCEY AND WESTERN MCDOWELL COUNTIES THROUGH 745 PM EDT...

AT 717 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 6 MILES NORTHWEST OF MONTREAT...OR 12 MILES
NORTHEAST OF DOWNTOWN ASHEVILLE...MOVING EAST AT 25 MPH.

PEOPLE IN NORTHEASTERN BUNCOMBE...SOUTHERN YANCEY AND WESTERN
MCDOWELL COUNTIES...

SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE
WARNINGS AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE
WEATHER THREATEN.

DIME SIZE HAIL...AND WIND GUSTS OF 30 TO 40 MPH ARE EXPECTED WITH
THIS STORM.

LAT...LON 3586 8226 3566 8219 3558 8245 3575 8253

NED

Special weather statement, Apr 17, 7:32 PM EDT, 15 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
732 PM EDT TUE APR 17 2012

GAZ010-NCZ062-063-SCZ001-180000-
MACON-OCONEE MOUNTAINS-RABUN-SOUTHERN JACKSON-
732 PM EDT TUE APR 17 2012

...A STRONG THUNDERSTORM WILL AFFECT EASTERN RABUN...NORTHWESTERN
OCONEE...SOUTHEASTERN MACON AND SOUTHERN JACKSON COUNTIES THROUGH 800
PM EDT...

AT 730 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 5 MILES EAST OF PINE MOUNTAIN...OR 13 MILES NORTH
OF WALHALLA...MOVING NORTH AT 20 MPH.

THIS STORM WILL BE NEAR...
  HIGHLANDS...

PEOPLE IN EASTERN RABUN...NORTHWESTERN OCONEE...SOUTHEASTERN MACON
AND SOUTHERN JACKSON COUNTIES...INCLUDING THE FOLLOWING LOCATION...

PINE MOUNTAIN...

SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE
WARNINGS AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE
WEATHER THREATEN.

DIME SIZE HAIL...AND WIND GUSTS OF 30 TO 40 MPH ARE EXPECTED WITH
THIS STORM.

LAT...LON 3511 8322 3510 8302 3505 8305 3505 8304
      3471 8317 3483 8340

NED

Special weather statement, Apr 17, 7:36 PM EDT, 11 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
736 PM EDT TUE APR 17 2012

GAZ010-017-018-SCZ001-004-180000-
GREATER OCONEE-HABERSHAM-OCONEE MOUNTAINS-RABUN-STEPHENS-
736 PM EDT TUE APR 17 2012

...STRONG THUNDERSTORMS WILL AFFECT HABERSHAM...SOUTHERN RABUN...
SOUTHWESTERN OCONEE AND STEPHENS COUNTIES THROUGH 800 PM EDT...

AT 734 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 3 MILES SOUTHEAST OF
NACOOHE LAKE TO BOYDVILLE...MOVING EAST AT 25 MPH.

THESE STORMS WILL BE NEAR...
  TURNERVILLE...
  LAKE RABUN...
  TALLULAH FALLS...
  EASTANOLEE...
  LONG CREEK...

PEOPLE IN HABERSHAM...SOUTHERN RABUN...SOUTHWESTERN OCONEE AND
STEPHENS COUNTIES...INCLUDING THE FOLLOWING LOCATIONS...

NACOOHE LAKE...TURNERVILLE...LAKE RABUN...TOCCOA...LAKEMONT...
TALLULAH FALLS...EASTANOLEE AND LONG CREEK...

SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE
WARNINGS AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE
WEATHER THREATEN.

PEA SIZE HAIL...AND WIND GUSTS OF 40 TO 50 MPH ARE EXPECTED WITH
THESE STORMS.

LAT...LON 3480 8363 3488 8319 3453 8303 3452 8308
      3453 8311 3451 8314 3446 8341 3448 8346
      3448 8348

NED

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 17, 4:52 PM EDT	Special Weather Statement	GSP	Stephens	23 min
Apr 17, 7:07 PM EDT	Special Weather Statement	GSP	Habersham	23 min
Apr 17, 7:32 PM EDT	Special Weather Statement	GSP	Rabun	28 min
Apr 17, 7:36 PM EDT	Special Weather Statement	GSP	Habersham, Stephens	24 min
Apr 17, 6:48 PM EDT	Special Weather Statement	GSP	Oconee	27 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2012 Severe Thunderstorm Warnings in South Carolina, 2012 Every severe thunderstorm warning in 2012

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.