Alert archive / South Carolina / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 197, NWS Greenville-Spartanburg, SC

May 22, 2012Cherokee County, York County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at May 22, 2012, 8:34 PM EDT for Cherokee County, York County, South Carolina. It was in force for 43 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
May 22, 2012, 8:34 PM EDT (00:34 UTC)
Expired
May 22, 2012, 9:17 PM EDT
In force
43 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon

Counties Cherokee County, SC, York County, SC

The radar

The Greer radar (KGSP), 69 km from the middle of the area, began a volume at 00:34 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 00:00Z, 0.6 hours before the alert went out and 189 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 00:00Z on 2012-05-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1004 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 2012-05-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -4 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
1004 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
1300 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
-4 m²/s²
0-3 km storm-relative helicity
31 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.

443 
WUUS52 KGSP 230034
SVRGSP
SCC021-091-230130-
/O.NEW.KGSP.SV.W.0197.120523T0034Z-120523T0130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
834 PM EDT TUE MAY 22 2012

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN CHEROKEE COUNTY IN UPSTATE SOUTH CAROLINA...
  NORTHWESTERN YORK COUNTY IN UPSTATE SOUTH CAROLINA...

* UNTIL 930 PM EDT

* AT 830 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 6 MILES
  WEST OF HICKORY GROVE...OR 11 MILES SOUTHEAST OF GAFFNEY...AND
  MOVING NORTHEAST AT 10 MPH.

* THE SEVERE THUNDERSTORM WILL IMPACT LOCATIONS NEAR...
  HICKORY GROVE.
  BLACKSBURG.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BRIEF DAMAGING WINDS WILL BLOW DOWN TREES AND POWER LINES OVER SMALL
AREAS. A BRIEF PERIOD OF LARGE HAIL IS ALSO POSSIBLE. SEEK SHELTER
INSIDE AN INTERIOR ROOM.

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 3485 8147 3487 8149 3487 8153 3488 8153
      3487 8154 3493 8166 3517 8154 3516 8123
      3515 8120
TIME...MOT...LOC 0034Z 209DEG 9KT 3497 8151

$$

RWH
2 follow-up statements
807 
WWUS52 KGSP 230057
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
857 PM EDT TUE MAY 22 2012

SCC021-091-230130-
/O.CON.KGSP.SV.W.0197.000000T0000Z-120523T0130Z/
CHEROKEE SC-YORK SC-
857 PM EDT TUE MAY 22 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
YORK AND EASTERN CHEROKEE COUNTIES UNTIL 930 PM EDT...

AT 855 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
BLACKSBURG...OR 9 MILES EAST OF GAFFNEY...MOVING NORTHEAST AT 10 MPH.

THE SEVERE THUNDERSTORM WILL IMPACT LOCATIONS NEAR...
  BLACKSBURG.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BRIEF DAMAGING WINDS WILL BLOW DOWN TREES AND POWER LINES OVER SMALL
AREAS. A BRIEF PERIOD OF LARGE HAIL IS ALSO POSSIBLE. SEEK SHELTER
INSIDE AN INTERIOR ROOM.

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 3485 8147 3487 8149 3487 8153 3488 8153
      3487 8154 3493 8166 3517 8154 3516 8123
      3515 8120
TIME...MOT...LOC 0058Z 209DEG 9KT 3509 8150

$$

RWH
056 
WWUS52 KGSP 230117
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
917 PM EDT TUE MAY 22 2012

SCC021-091-230127-
/O.CAN.KGSP.SV.W.0197.000000T0000Z-120523T0130Z/
CHEROKEE SC-YORK SC-
917 PM EDT TUE MAY 22 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN YORK AND EASTERN
CHEROKEE COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LEVELS.

ADDITIONAL SEVERE THUNDERSTORMS MAY DEVELOP ACROSS THE AREA LATER.
STAY TUNED TO LOCAL MEDIA OUTLETS OR NOAA ALL HAZARDS WEATHER RADIO
FOR THE LATEST WEATHER INFORMATION.

LAT...LON 3485 8147 3487 8149 3487 8153 3488 8153
      3487 8154 3493 8166 3517 8154 3516 8123
      3515 8120
TIME...MOT...LOC 0117Z 209DEG 9KT 3513 8147

$$

RWH

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 May 22, 8:04 PM EDT, 30 minutes earlier.

Area forecast discussion, May 22, 8:04 PM EDT, 30 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
804 PM EDT TUE MAY 22 2012

.SYNOPSIS...
AN UPPER LOW PRESSURE TROUGH WILL SLOWLY MOVE THROUGH THE REGION
TONIGHT INTO WEDNESDAY. HIGH PRESSURE WILL BUILD OVER THE AREA FOR
UNSEASONABLY WARM TEMPERATURES AND MOSTLY DRY WEATHER THURSDAY
THROUGH THE WEEKEND.

&&

.NEAR TERM /THROUGH WEDNESDAY/...
AS OF 530 PM...ONLY MINOR TWEAKS TO POPS/WX PER RADAR TRENDS.
SCATTERED TO NUMEROUS SHOWERS AND TSTMS ACRS THE CWFA ATTM. TWO MAIN
CLUSTERS...ONE OVER THE NW NC PIEDMONT AND ANOTHER ACRS THE WESTERN
UPSTATE. STRONG UPPER VORT CAN BE SEEN ON WATER VAPOR ENTERING N GA.
SO EXPECT COVERAGE TO REMAIN HIGH INTO EARLY EVENING. BOTH THE
SEVERE THREAT AND HYDRO THREAT SEEM TO BE NOT AS BAD AS EARLIER
THOUGHT. BUT STILL SOME POTENTIAL FOR LARGE HAIL...DAMAGING WIND
GUSTS...AND LOCALIZED FLOODING WITH STRONGEST STORMS AND MERGERS.

OVERNIGHT...THE TROF STRENGTH REMAINS STEADY STATE WITH THE BEST
ENERGY AND DPVA DISPLACED SOUTH OF THE CWFA. HOWEVER...THERE WILL BE
ENOUGH LIFT AND SOME MEASURE OF ELCAPE AND MLVL LAPSE RATES FOR THE
CONTINUATION OF ISOL/SCT -SHRA/TSTMS. DONT ANTICIPATE A FLOODING
CONCERN...BUT THERE IS THE POTENTIAL FOR SOME STORMS TO REDEVELOP
OVER THE SAME AREAS AND IF THEY ARE OVER THE LOW FFG ZONES...THEN
MINOR FLOODING COULD BE PRODUCED. MIN TEMPS WILL REMAIN A FEW
DEGREES F ABOVE NORMAL WITH THE DEBRIS CLOUD COVER. ALSO...PATCHY
DENSE FOG WILL BE FAVORED ACROSS THE MTN VALLEYS.

WEDNESDAY...HEIGHTS WILL BEGIN TO RISE...HOWEVER AN OVERALL BROAD
TROF WILL ENCOMPASS THE ENTIRE SE REGION. MODEL SOUNDINGS SHOW
ENOUGH SBCAPE DEVELOPING...ESP ACROSS THE SOUTH AND EAST FOR SOME
STRONGER CONVECTION. DEEP SHEAR WILL BE VERY LOW AS THE UPPER LOW
BECOMES LESS DEFINED. HOWEVER...AT THE SFC THERE WILL BE WEAK LOW
PRESSURE CENTERED ACROSS ERN GA AND THE WRN UPSTATE...SO A NATURAL
CONVERGENCE ZONE WILL DEVELOP NORTH AND TO THE WEST OF THIS FEATURE.
THIS WILL BE THE AREA ADVERTISED FOR HIGHER CHANCE POPS...ESP ACROSS
THE NRN NC MTN AND FTHILLS. MAX TEMPS WILL BE A FEW DEGREES ABOVE
NORMAL SOUTH AND A FEW DEGREES BELOW NORMAL NORTH AS HIGHER CLOUD
COVER WILL LIMIT INSOLATION FOR A GOOD PART OF THE DAY ACROSS MOST
OF NC.

&&

.SHORT TERM /WEDNESDAY NIGHT THROUGH FRIDAY/...
AS OF 230 PM TUESDAY...USED A GENERAL GFS/NAM MODEL BLEND FOR
THU-FRI TIMEFRAME. EXPECT POPS TO TAPER OFF TO SLIGHT CHC WED EVE
WITH COOLING. THE 500 MB LOW WILL FILL AND LIFT NE AS AN OPEN WAVE
WED NIGHT-THU WITH UPPER LEVEL DIFLUENT FLOW OVER THE AREA THU. ALSO
EXPECT INCRSNG LOW LEVEL S-SE FLOW TO BRING SOME MOISTURE OFF THE
ATLANTIC UP OVER THE AREA. LOOK FOR A CHC OF MTN TSTMS TO SPREAD OUT
ACROSS MUCH OF THE NC PIEDMONT THU AFTN...WITH ISOLD COVERAGE
UPSTATE SC AND NE GA. TEMPS SHOULD WARM ABOUT A CATEGORY ABOVE AVG.
UPPER WAVE MOVES NE OF THE AREA THU NIGHT WITH A RIDGE BUILDING IN
BEHIND IT. UPPER RIDGE CONTINUES TO BUILD OVER THE REGION FRI WHILE
A SFC RIDGE PUSHES DOWN OVER THE AREA FROM THE NE. LOW LEVEL E FLOW
COULD BRING ENOUGH ATLANTIC MOISTURE OFF THE E COAST...COMBINED WITH
WEAK UPSLOPE FLOW AND AFTN HEATING...FOR SLIGHT CHC TSTMS OVER THE
MTNS. TEMPS WILL WARM ANOTHER CAT ABOVE THU READINGS.

&&

.LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/...
AS OF 230 PM TUESDAY...THE LATEST MEDIUM RANGE MODELS CONTINUE TO
INDICATE THAT THE LARGE H5 HIGH WILL BUILD OVER THE MISSISSIPPI
VALLEY ON FRIDAY AND MIGRATES EAST ACROSS THE EASTERN CONUS THROUGH
THE WEEKEND. THEREFORE...EXPECT HIGH TEMPERATURES WARMING INTO THE
UPPER 80S FRIDAY AND REACHING THE LOW 90S ON SATURDAY OVER THE
PIEDMONT. WARMING TEMPERATURES ALOFT IN THE RIDGE WILL PROVIDE A
DEGREE OF CAPPING FOR CONVECTION...BUT A COMBINATION OF UPSLOPE FLOW
DUE TO PREDOMINANT SE TO E FLOW AND ELEVATED DIURNAL INSTABILITY MAY
SUPPORT THE DEVELOPMENT OF AFTERNOON ISOLATED/SCATTERED
THUNDERSTORMS ALONG THE BLUE RIDGE MOUNTAINS FRI THROUGH SAT. SO
HAVE KEPT SLIGHT CHANCE POPS THERE WITH DRY ELSEWHERE.

SUNDAY THROUGH TUESDAY...CONFIDENCE IS LOW AS THE MODELS SHOW
DIFFERENT SOLUTIONS FOR HANDLING THE TROPICAL FEATURE OVER THE
SOUTHEAST. THE GFS INDICATES THAT A TROPICAL LOW OVER THE ATLANTIC
OCEAN APPROACHES THE SE COAST ON SUNDAY AND CROSSES NORTHERN FL ON
MONDAY WHILE THE ECMWF HAS THE LOW LINGERING OFF THE SE COAST
THROUGH THE PERIOD. GIVEN THE UNCERTAINTY OF THE TRACK/INTENSITY OF
THE LOW...WILL CARRY SLIGHT CHANCE POPS OVER MUCH OF OUR CWA THROUGH
THE PERIOD. TEMPERATURES WILL REMAIN WELL ABOVE NORMALS.

&&

.AVIATION /00Z WEDNESDAY THROUGH SUNDAY/...
AT KCLT...MAIN CONCERN IN THE NEXT 4 HOURS OR SO IS NUMEROUS SHRA
AND TSRA AROUND THE AIRFIELD. HIGH-RES/NEAR TERM MODELS SEEM TO HAVE
INITIALIZED WELL WITH THE CONVECTION...AND KEEP SCATTERED TO
NUMEROUS STORMS IN THE CLT AREA THRU AT LEAST 04Z. COVERAGE SHUD
DIMINISH OVERNIGHT. WITH WIDESPREAD RAINFALL AND LIGHT SLY LLVL
FLOW...SOME OF THE GUIDANCE IS PICKING UP ON POSSIBLE STRATUS AND/OR
FOG DEVELOPMENT. CONDITIONS ARE NOT IDEAL WITH PLENTY OF MID
CLOUDINESS LINGERING. SO LEFT OUT RESTRICTIONS FOR THE LATE
OVERNIGHT/WED MORNING. HOWEVER...IF GUIDANCE TRENDS MORE PESSIMISTIC
AND THE AIRFIELD RECEIVES SOME HEAVY RAIN THIS
EVENING...RESTRICTIONS MAY BE ADDED WITH AN AMENDMENT LATER THIS
EVENING. FOR WEDNESDAY...CONVECTION SHUD BE WIDELY SCATTERED. HAVE
LEFT OUT MENTION WITH THE 00Z TAF FOR NOW. I MAY ADD A PROB30 WITH
AN UPDATE LATER THIS EVENING.

ELSEWHERE...MOST OF THE TALLER CONVECTION HAS SHIFTED EAST OF THE
AREA...WITH LINGERING SHOWERS REMAINING. STILL COULD BE A FEW
EMBEDDED TSRA WITHIN THE WANING CONVECTION...BUT HAVE GONE WITH SHRA
OR VCSH FOR THE REST OF THE EVENING. GUIDANCE MIXED ON POSSIBLE
RESTRICTIONS IN FOG AND/OR STRATUS GIVEN MOIST BL FROM EARLIER
RAINFALL. HAVE ADDED SOME MVFR VSBY AND/OR CIGS AT SITES WHICH HAD
SOME RAINFALL AND ALREADY LOW DEWPT DEPRESSIONS. TRENDS WILL BE
WATCHED FOR POSSIBLY MORE PESSIMISTIC AMENDMENTS. CONVECTION SHUD BE
LESS NUMEROUS WEDNESDAY...SO NO MENTION OF TS WITH THE 00Z TAFS.

OUTLOOK...DIURNAL THUNDERSTORMS TOWARD THE END OF THE WEEK ARE MORE
LIKELY TO BE CONFINED TO THE MOUNTAINS AND FOOTHILLS. EARLY MORNING
RESTRICTIONS DUE TO FOG ARE A GOOD BET MAINLY IN THE MOUNTAIN
VALLEYS.

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...FLASH FLOOD WATCH UNTIL MIDNIGHT EDT TONIGHT FOR NCZ033-049-
     050-053-501-503-505.
SC...NONE.

&&

SYNOPSIS...JOH
NEAR TERM...ARK/SBK
SHORT TERM...RB
LONG TERM...JOH
AVIATION...ARK
Hazardous weather outlook, May 22, 3:48 AM EDT, 16 hours 46 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
348 AM EDT TUE MAY 22 2012

GAZ010-017-018-026-028-029-NCZ035>037-048-051-052-056>059-062>065-
068>072-082-502-504-506>510-SCZ001>014-019-230800-
RABUN-HABERSHAM-STEPHENS-FRANKLIN-HART-ELBERT-ALEXANDER-IREDELL-
DAVIE-MADISON-SWAIN-HAYWOOD-CATAWBA-ROWAN-GRAHAM-NORTHERN JACKSON-
MACON-SOUTHERN JACKSON-TRANSYLVANIA-HENDERSON-CLEVELAND-LINCOLN-
GASTON-MECKLENBURG-CABARRUS-UNION NC-GREATER CALDWELL-GREATER BURKE-
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-
348 AM EDT TUE MAY 22 2012

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

.DAY ONE...TODAY AND TONIGHT.

NUMEROUS SHOWERS AND THUNDERSTORMS WILL DEVELOP ACROSS THE REGION
TODAY AND POSSIBLY LINGER INTO TONIGHT. THESE THUNDERSTORMS WILL
PRODUCE DANGEROUS CLOUD TO GROUND LIGHTNING AND LOCALLY VERY HEAVY
RAINFALL. THE RAINFALL COULD BE EXCESSIVE IN A FEW
LOCATIONS...ESPECIALLY WHERE HEAVY RAIN FELL ON MONDAY...WITH
LOCALIZED FLOODING RESULTING. IN ADDITION...SEVERAL OF THE
THUNDERSTORMS COULD PRODUCE HAIL AS LARGE AS QUARTERS AND BRIEF
BUT DAMAGING WIND GUSTS THIS AFTERNOON AND EVENING.

.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.

NCZ033-049-050-053-501-503-505-230800-
AVERY-YANCEY-MITCHELL-BUNCOMBE-CALDWELL MOUNTAINS-BURKE MOUNTAINS-
MCDOWELL MOUNTAINS-
348 AM EDT TUE MAY 22 2012

...FLASH FLOOD WATCH IN EFFECT FROM NOON EDT TODAY THROUGH THIS
EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN NORTH CAROLINA.

.DAY ONE...TODAY AND TONIGHT.

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

   FLASH FLOOD WATCH.

NUMEROUS SHOWERS AND THUNDERSTORMS WILL DEVELOP ACROSS THE REGION
TODAY AND POSSIBLY LINGER INTO TONIGHT. THESE THUNDERSTORMS WILL
PRODUCE DANGEROUS CLOUD TO GROUND LIGHTNING. IN ADDITION...SEVERAL
OF THE THUNDERSTORMS COULD PRODUCE HAIL AS LARGE AS QUARTERS AND
BRIEF BUT DAMAGING WIND GUSTS THIS AFTERNOON AND EVENING.

.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.

GERAPETRITIS

In the hours before

Special weather statement, May 22, 7:59 PM EDT, 35 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
759 PM EDT TUE MAY 22 2012

NCZ037-230045-
DAVIE-
759 PM EDT TUE MAY 22 2012

...A STRONG THUNDERSTORM WILL AFFECT DAVIE COUNTY THROUGH 845 PM
EDT...

AT 758 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 3 MILES NORTHEAST OF MOCKSVILLE...MOVING NORTH AT
15 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  ADVANCE...
  FARMINGTON...
  BERMUDA RUN...

NICKEL SIZE HAIL...WIND GUSTS OF 40 TO 50 MPH AND TORRENTIAL RAIN ARE
EXPECTED WITH THIS STORM.

HEAVY RAINS MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND
UNDERPASSES. AVOID THESE AREAS AND DO NOT CROSS FLOODED ROADS. WATER
LEVELS OF SMALL STREAMS AND RIVERS MAY ALSO RISE. SEEK HIGHER GROUND
IF THREATENED BY FLOOD WATERS.

FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF OUTDOORS...STAY
AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES. MOVE INDOORS IF
POSSIBLE. WHEN INDOORS...STAY AWAY FROM WINDOWS AND DOORS AND AVOID
USING TELEPHONES UNLESS IT IS AN EMERGENCY. TRY TO UNPLUG UNNECESSARY
ELECTRICAL APPLIANCES BEFORE THE THUNDERSTORM APPROACHES.

LAT...LON 3588 8041 3585 8038 3584 8041 3582 8045
      3589 8067 3606 8067 3605 8049 3607 8046
      3601 8041 3599 8041 3596 8037 3589 8036

RWH
Special weather statement, May 22, 8:06 PM EDT, 28 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
806 PM EDT TUE MAY 22 2012

SCZ013-014-230045-
CHESTER-UNION-
806 PM EDT TUE MAY 22 2012

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN UNION AND WESTERN
CHESTER COUNTIES THROUGH 845 PM EDT...

AT 802 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 6 MILES SOUTH OF CARLISLE...OR 17 MILES NORTHEAST
OF NEWBERRY...MOVING NORTHEAST AT 25 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  CARLISLE...
  CHESTER...

PENNY SIZE HAIL...WIND GUSTS OF 40 TO 50 MPH AND TORRENTIAL RAIN ARE
EXPECTED WITH THIS STORM.

HEAVY RAINS MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND
UNDERPASSES. AVOID THESE AREAS AND DO NOT CROSS FLOODED ROADS. WATER
LEVELS OF SMALL STREAMS AND RIVERS MAY ALSO RISE. SEEK HIGHER GROUND
IF THREATENED BY FLOOD WATERS.

FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF OUTDOORS...STAY
AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES. MOVE INDOORS IF
POSSIBLE. WHEN INDOORS...STAY AWAY FROM WINDOWS AND DOORS AND AVOID
USING TELEPHONES UNLESS IT IS AN EMERGENCY. TRY TO UNPLUG UNNECESSARY
ELECTRICAL APPLIANCES BEFORE THE THUNDERSTORM APPROACHES.

LAT...LON 3450 8160 3452 8161 3483 8135 3482 8114
      3476 8105 3455 8127 3456 8141 3456 8142
      3450 8141 3449 8144 3448 8149 3445 8153

RWH
Local storm report, May 22, 8:21 PM EDT, 13 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
821 PM EDT TUE MAY 22 2012

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

0612 PM     HAIL             2 ENE PELZER            34.65N 82.43W
05/22/2012  E1.00 INCH       GREENVILLE         SC   TRAINED SPOTTER

            UP TO 1 INCH HAIL REPORTED BY SPOTTER ENE OF PELZER.

&&

JPT
Special weather statement, May 22, 8:25 PM EDT, 9 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
825 PM EDT TUE MAY 22 2012

NCZ071-072-230115-
CABARRUS-MECKLENBURG-
825 PM EDT TUE MAY 22 2012

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN MECKLENBURG AND
NORTHWESTERN CABARRUS COUNTIES THROUGH 915 PM EDT...

AT 822 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 3 MILES NORTHWEST OF CROFT...OR 9 MILES NORTHWEST
OF UNC CHARLOTTE...MOVING NORTHEAST AT 10 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  HUNTERSVILLE...
  CORNELIUS...
  DAVIDSON...

PENNY SIZE HAIL...WIND GUSTS OF 40 TO 50 MPH AND TORRENTIAL RAIN ARE
EXPECTED WITH THIS STORM.

HEAVY RAINS MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND
UNDERPASSES. AVOID THESE AREAS AND DO NOT CROSS FLOODED ROADS. WATER
LEVELS OF SMALL STREAMS AND RIVERS MAY ALSO RISE. SEEK HIGHER GROUND
IF THREATENED BY FLOOD WATERS.

FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF OUTDOORS...STAY
AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES. MOVE INDOORS IF
POSSIBLE. WHEN INDOORS...STAY AWAY FROM WINDOWS AND DOORS AND AVOID
USING TELEPHONES UNLESS IT IS AN EMERGENCY. TRY TO UNPLUG UNNECESSARY
ELECTRICAL APPLIANCES BEFORE THE THUNDERSTORM APPROACHES.

LAT...LON 3525 8081 3532 8099 3535 8097 3536 8092
      3537 8096 3536 8097 3538 8098 3539 8096
      3544 8096 3545 8094 3547 8095 3551 8092
      3550 8063

RWH
Special weather statement, May 22, 8:27 PM EDT, 7 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
827 PM EDT TUE MAY 22 2012

SCZ008-009-230115-
CHEROKEE-YORK-
827 PM EDT TUE MAY 22 2012

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN CHEROKEE AND
WESTERN YORK COUNTIES THROUGH 915 PM EDT...

AT 826 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 3 MILES EAST OF SARATT...OR 14 MILES NORTHEAST OF
UNION...MOVING NORTHEAST AT 10 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  HICKORY GROVE...

PENNY SIZE HAIL...WIND GUSTS OF 40 TO 50 MPH AND TORRENTIAL RAIN ARE
EXPECTED WITH THIS STORM.

HEAVY RAINS MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND
UNDERPASSES. AVOID THESE AREAS AND DO NOT CROSS FLOODED ROADS. WATER
LEVELS OF SMALL STREAMS AND RIVERS MAY ALSO RISE. SEEK HIGHER GROUND
IF THREATENED BY FLOOD WATERS.

FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF OUTDOORS...STAY
AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES. MOVE INDOORS IF
POSSIBLE. WHEN INDOORS...STAY AWAY FROM WINDOWS AND DOORS AND AVOID
USING TELEPHONES UNLESS IT IS AN EMERGENCY. TRY TO UNPLUG UNNECESSARY
ELECTRICAL APPLIANCES BEFORE THE THUNDERSTORM APPROACHES.

LAT...LON 3482 8139 3482 8147 3484 8146 3487 8149
      3487 8153 3488 8153 3487 8154 3489 8158
      3488 8162 3514 8147 3501 8122

RWH
Local storm report, May 22, 8:28 PM EDT, 6 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
828 PM EDT TUE MAY 22 2012

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

0710 PM     HAIL             4 ENE ROCKWELL          35.58N 80.33W
05/22/2012  E1.00 INCH       ROWAN              NC   PUBLIC

            DIME TO QUARTER SIZED HAIL REPORTED BY PUBLIC NE OF
            ROCKWELL.

&&

JPT

The office that day

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

IssuedProductOfficeCountiesLasted
May 22, 8:06 PM EDTSpecial Weather StatementGSPChester39 min
May 22, 8:27 PM EDTSpecial Weather StatementGSPCherokee48 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2012Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.