Alert archive / North Carolina / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 196, NWS Greenville-Spartanburg, SC

May 22, 2012Rowan County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at May 22, 2012, 7:08 PM EDT for Rowan County, North Carolina. It was in force for 52 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
May 22, 2012, 7:08 PM EDT (23:08 UTC)
Expired
May 22, 2012, 8:00 PM EDT
In force
52 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon

County Rowan County, NC

The radar

The Roanoke radar (KFCX), 153 km from the middle of the area, began a volume at 23:08 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

TimeReportWhereRemark
May 22, 7:10 PM EDTHAIL 14 Ene Rockwell, NCDIME TO QUARTER SIZED HAIL REPORTED BY PUBLIC NE OF ROCKWELL.

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 2 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, 11.1 hours before the alert went out and 62 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 2012-05-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 185 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 2012-05-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 37 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
185 J/kg
Mixed-layer CIN
-98 J/kg
Mixed-layer LCL
928 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
37 m²/s²
0-3 km storm-relative helicity
23 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.

398 
WUUS52 KGSP 222308
SVRGSP
NCC159-230000-
/O.NEW.KGSP.SV.W.0196.120522T2308Z-120523T0000Z/

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

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN ROWAN COUNTY IN THE PIEDMONT OF NORTH CAROLINA...

* UNTIL 800 PM EDT

* AT 705 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
  ROCKWELL...OR 10 MILES SOUTHEAST OF SALISBURY...AND MOVING
  NORTHEAST AT 10 MPH.

* THE SEVERE THUNDERSTORM WILL IMPACT LOCATIONS NEAR...
  HIGH ROCK LAKE.

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 3550 8019 3551 8051 3578 8052 3578 8050
      3574 8045 3572 8038 3573 8034 3571 8032
      3568 8033 3564 8029 3564 8026 3558 8020
      3552 8018
TIME...MOT...LOC 2309Z 217DEG 7KT 3559 8033

$$

RWH
1 follow-up statement
814 
WWUS52 KGSP 222325
SVSGSP

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

NCC159-230000-
/O.CON.KGSP.SV.W.0196.000000T0000Z-120523T0000Z/
ROWAN NC-
725 PM EDT TUE MAY 22 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN ROWAN
COUNTY UNTIL 800 PM EDT...

AT 722 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
EAST OF ROCKWELL...OR 13 MILES SOUTHEAST OF SALISBURY...MOVING
NORTHEAST AT 10 MPH.

THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF EASTERN
ROWAN COUNTY...INCLUDING THE FOLLOWING LOCATIONS...CRAVEN.

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 3550 8019 3551 8051 3578 8052 3578 8050
      3574 8045 3572 8038 3573 8034 3571 8032
      3568 8033 3564 8029 3564 8026 3558 8020
      3552 8018
TIME...MOT...LOC 2326Z 217DEG 7KT 3556 8029

$$

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, 6:17 PM EDT, 51 minutes earlier.

Area forecast discussion, May 22, 6:17 PM EDT, 51 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
617 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 /22Z TUESDAY THROUGH SUNDAY/...
AT KCLT AND ELSEWHERE...EXPECT SCATTERED TO NUMEROUS SHOWERS AND
THUNDERSTORMS THIS AFTERNOON AND INTO THE EVENING AFFECTING ALL
TERMINALS AT ONE TIME OR ANOTHER. THESE WRN STORMS WILL GENERALLY
DEVELOP EAST AS THE UPPER TROF DEEPENS AND PULLS NE. A DIURNAL IS
EXPECTED...BUT A FEW -SHRA/TSTMS WILL PERSIST. TOO LITTLE SPATIAL
CONFIDENCE TO ADVERTISE VCSH/VCTS AT ANY TAF SITE AFT 02Z. THERE
COULD BE SOME PATCHY DENSE FG AND PERHAPS SOME LINGERING LLVL STCU
IN THE MORNING. RIGHT NOW...KAVL LOOKS TO HAVE THE BEST CHANCE. SO
AN MVFR CIG/VSBY IS INCLUDED AT 11Z.

OUTLOOK...DIURNAL SHOWERS AND TSTMS SHOULD RE-DEVELOP AGAIN WED
AFTERNOON MOST AREAS. 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...SBK
Hazardous weather outlook, May 22, 3:48 AM EDT, 15 hours 20 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, 5:30 PM EDT, 1 hour 38 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
530 PM EDT TUE MAY 22 2012

NCZ036-057-071-072-222215-
CABARRUS-IREDELL-MECKLENBURG-ROWAN-
530 PM EDT TUE MAY 22 2012

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN MECKLENBURG...
NORTHWESTERN CABARRUS...SOUTHEASTERN IREDELL AND SOUTHWESTERN ROWAN
COUNTIES THROUGH 615 PM EDT...

AT 528 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 6 MILES NORTHWEST OF CHARLOTTE MOTOR SPEEDWAY...
OR 8 MILES WEST OF CONCORD...MOVING NORTHEAST AT 15 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  ENOCHVILLE...
  LANDIS...
  CHINA GROVE...

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 3576 8073 3565 8045 3528 8069 3539 8088

RWH
Special weather statement, May 22, 5:55 PM EDT, 1 hour 13 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
555 PM EDT TUE MAY 22 2012

NCZ057-072-222245-
CABARRUS-ROWAN-
555 PM EDT TUE MAY 22 2012

...A STRONG THUNDERSTORM WILL AFFECT CABARRUS AND SOUTHEASTERN ROWAN
COUNTIES THROUGH 645 PM EDT...

AT 553 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 6 MILES EAST OF HARRISBURG...OR 7 MILES SOUTH OF
CONCORD...MOVING NORTHEAST AT 20 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  CONCORD...
  MOUNT PLEASANT...
  ROCKWELL...

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 3520 8049 3527 8067 3531 8068 3567 8052
      3556 8024

RWH
Special weather statement, May 22, 6:00 PM EDT, 1 hour 8 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
600 PM EDT TUE MAY 22 2012

SCZ007-012-013-222245-
LAURENS-SPARTANBURG-UNION-
600 PM EDT TUE MAY 22 2012

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL LAURENS...SOUTHEASTERN
SPARTANBURG AND WESTERN UNION COUNTIES THROUGH 645 PM EDT...

AT 557 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 3 MILES NORTHEAST OF ORA...OR 8 MILES NORTHEAST
OF LAURENS...MOVING NORTHEAST AT 10 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  ENOREE...
  CROSS KEYS...

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 3485 8183 3466 8164 3448 8197 3462 8210

RWH
Special weather statement, May 22, 6:16 PM EDT, 52 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
616 PM EDT TUE MAY 22 2012

NCZ069>071-222300-
GASTON-LINCOLN-MECKLENBURG-
616 PM EDT TUE MAY 22 2012

...A STRONG THUNDERSTORM WILL AFFECT EASTERN LINCOLN...NORTHEASTERN
GASTON AND NORTHWESTERN MECKLENBURG COUNTIES THROUGH 700 PM EDT...

AT 613 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR LUCIA...OR 11 MILES NORTHEAST OF GASTONIA...
MOVING NORTHEAST AT 10 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  MOUNTAIN ISLAND LAKE...
  LOWESVILLE...

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 3525 8104 3537 8120 3555 8104 3555 8096
      3553 8094 3553 8096 3550 8096 3549 8095
      3552 8090 3551 8082 3548 8078 3545 8077

RWH
Local storm report, May 22, 6:51 PM EDT, 17 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
651 PM EDT TUE MAY 22 2012

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

0642 PM     HAIL             5 SE SIMPSONVILLE       34.68N 82.20W
05/22/2012  E0.88 INCH       LAURENS            SC   TRAINED SPOTTER

            UP TO NICKEL SIZED HAIL REPORTED.

&&

JPT
Special weather statement, May 22, 7:02 PM EDT, 6 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
702 PM EDT TUE MAY 22 2012

NCZ036-037-057-230000-
DAVIE-IREDELL-ROWAN-
702 PM EDT TUE MAY 22 2012

...A STRONG THUNDERSTORM WILL AFFECT DAVIE...IREDELL AND ROWAN
COUNTIES THROUGH 800 PM EDT...

AT 657 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 5 MILES EAST OF TERRELL...OR 12 MILES SOUTH OF
STATESVILLE...MOVING NORTH AT 15 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  CHINA GROVE...
  TROUTMAN...
  STATESVILLE...

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 3553 8095 3562 8093 3570 8099 3571 8104
      3589 8103 3596 8100 3606 8103 3605 8045
      3596 8037 3589 8036 3588 8041 3586 8038
      3584 8039 3582 8047 3574 8045 3571 8032
      3564 8029 3558 8020 3550 8018

RWH

The office that day

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

IssuedProductOfficeCountiesLasted
May 21, 8:16 PM EDTSpecial Weather StatementGSPMecklenburg44 min
May 21, 9:07 PM EDTAreal Flood AdvisoryGSPMecklenburg3 hr
May 22, 3:37 AM EDTFlash Flood WatchGSPAvery, Buncombe, Burke, Caldwell, McDowell, Mitchell and 1 more18 hr
May 22, 3:45 PM EDTSpecial Weather StatementGSPRutherford45 min
May 22, 4:30 PM EDTSevere Thunderstorm WarningGSPBurke, Cleveland, Rutherford60 min
May 22, 5:19 PM EDTSpecial Weather StatementGSPJackson41 min
May 22, 5:25 PM EDTSevere Thunderstorm WarningGSPAlexander, Burke, Caldwell, Catawba, Iredell65 min
May 22, 5:30 PM EDTSpecial Weather StatementGSPRowan45 min
May 22, 5:55 PM EDTSpecial Weather StatementGSPCabarrus, Rowan50 min
May 22, 6:04 PM EDTSevere Thunderstorm WarningGSPCabarrus, Rowan56 min
May 22, 6:16 PM EDTSpecial Weather StatementGSPGaston44 min
May 22, 6:53 PM EDTSevere Thunderstorm WarningGSPGaston53 min
May 22, 7:02 PM EDTSpecial Weather StatementGSPDavie, Iredell, Rowan58 min
May 22, 7:04 PM EDTSevere Thunderstorm WarningGSPDavie, Iredell41 min
May 22, 7:13 PM EDTSpecial Weather StatementGSPCabarrus, Mecklenburg47 min
May 22, 7:41 PM EDTAreal Flood AdvisoryGSPMecklenburg109 min
May 22, 7:59 PM EDTSpecial Weather StatementGSPDavie46 min

Nearby

Severe Thunderstorm Warnings in North 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.