Alert archive / North Carolina / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 30, NWS Greenville-Spartanburg, SC

March 20, 2012Davie County, Rowan County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Mar 20, 2012, 8:05 PM EDT for Davie County, Rowan County, North Carolina. It was in force for 55 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
Mar 20, 2012, 8:05 PM EDT (00:05 UTC)
Expired
Mar 20, 2012, 9:00 PM EDT
In force
55 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon

Counties Davie County, NC, Rowan County, NC

The radar

The Roanoke radar (KFCX), 142 km from the middle of the area, began a volume at 00:07 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

Roanoke, VA (KRNK), launched 00:00Z, 0.1 hours before the alert went out and 181 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, Roanoke, VA at 00:00Z on 2012-03-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 11 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, Roanoke, VA at 00:00Z on 2012-03-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 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
11 J/kg
Mixed-layer CIN
-148 J/kg
Mixed-layer LCL
1517 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
96 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.

878 
WUUS52 KGSP 210005
SVRGSP
NCC059-159-210100-
/O.NEW.KGSP.SV.W.0030.120321T0005Z-120321T0100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
805 PM EDT TUE MAR 20 2012

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN DAVIE COUNTY IN THE PIEDMONT OF NORTH CAROLINA...
  CENTRAL ROWAN COUNTY IN THE PIEDMONT OF NORTH CAROLINA...

* UNTIL 900 PM EDT

* AT 803 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
  COOLEEMEE...OR NEAR MOCKSVILLE...AND MOVING SOUTH AT 15 MPH.

* THE SEVERE THUNDERSTORM WILL IMPACT LOCATIONS NEAR...
  SPENCER.
  SALISBURY.
  GRANITE QUARRY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS SEVERE THUNDERSTORM 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.

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 3558 8027 3553 8059 3588 8065 3593 8044
      3584 8040 3584 8041 3583 8043 3582 8047
      3579 8047 3577 8045 3574 8045 3572 8038
      3573 8034
TIME...MOT...LOC 0005Z 343DEG 12KT 3583 8052

$$

JPT
1 follow-up statement
068 
WWUS52 KGSP 210052
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
852 PM EDT TUE MAR 20 2012

NCC059-159-210100-
/O.CON.KGSP.SV.W.0030.000000T0000Z-120321T0100Z/
DAVIE NC-ROWAN NC-
852 PM EDT TUE MAR 20 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL ROWAN
AND SOUTHERN DAVIE COUNTIES UNTIL 900 PM EDT...

AT 848 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
SALISBURY...MOVING SOUTH AT 15 MPH.

THE SEVERE THUNDERSTORM WILL IMPACT LOCATIONS NEAR...
  GRANITE QUARRY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS SEVERE THUNDERSTORM IS ALSO PRODUCING FREQUENT AND INTENSE
LIGHTNING. TURN OFF ELECTRICAL APPLIANCES. DO NOT USE CORDED
TELEPHONES. DO NOT TAKE A BATH OR SHOWER.

THIS SEVERE THUNDERSTORM 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.

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 3558 8027 3553 8059 3588 8065 3593 8044
      3584 8040 3584 8041 3583 8043 3582 8047
      3579 8047 3577 8045 3574 8045 3572 8038
      3573 8034
TIME...MOT...LOC 0052Z 343DEG 12KT 3568 8046

$$

JPT

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 Mar 20, 2:22 PM EDT, 5 hours 43 minutes earlier.

Area forecast discussion, Mar 20, 2:22 PM EDT, 5 hours 43 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
222 PM EDT TUE MAR 20 2012

.SYNOPSIS...
A WARM AND MOIST AIR MASS WILL DOMINATE THE REGION THROUGH THE END
OF THE WORK WEEK. A COLD FRONT IS THEN EXPECTED TO PUSH EAST ACROSS
THE CAROLINAS AND NORTHEAST GEORGIA SATURDAY...FOLLOWED BY DRY HIGH
PRESSURE BUILDING IN SUNDAY AND REMAINING INTO EARLY NEXT WEEK.

&&

.NEAR TERM /THROUGH WEDNESDAY/...
AS OF 215 PM...A HIGHLY AMPLIFIED PATTERN REMAINS IN PLACE THIS
AFTERNOON...WITH A CUTOFF LOW PRESSURE SYSTEM MOVING INTO W TX...AND
A DEEP RIDGE OVER THE APPALACHIANS. SCATTERED AFTN CONVECTION HAS
FIRED MAINLY NEAR THE NC BLUE RIDGE AND HIGHER MTN PEAKS...WHERE LOW
LEVEL CONVERGENCE AND UPSLOPE FLOW ARE PROVIDING THE BEST
FORCING...AND WHERE LAPSE RATES ALOFT ARE THE STEEPEST. THIS
ACTIVITY COULD SPREAD ISOLD TO SCT COVERAGE INTO THE FOOTHILLS AND
PIEDMONT THROUGH THE EVENING ON THE STRENGTH OF ANY OUTFLOWS. THERE
IS LITTLE STEERING FLOW UP THE SOUNDINGS AND ANY TSTMS WILL PRODUCE
LOCALLY VERY HEAVY RAINFALL. SFC BASED CAPE VALUES OF 1000 TO 2000
J/KG ACROSS THE REGION SHOULD YIELD SOME STRONG STORMS...WITH
ISOLATED SEVERE POSSIBLE FROM ANY CELLS EXHIBITING 55 DBZ TO AROUND
22 KFT.

AFTER THE MAINLY DIURNAL CONVECTION WANES A LITTLE BY
MIDNIGHT...COVERAGE OF SHOWERS AND ISOLD TSTMS MAY INCREASE AGAIN
OVERNIGHT ACROSS NRN SECTIONS WITH A LIGHT SE UPSLOPE INTO THE NC
BLUE RIDGE...AND ALSO FROM A VORT MAX MOVING SWD JUST E OF THE UPPER
RIDGE. COVERAGE ACROSS THE INTERSTATE 77 CORRIDOR MAY THEN EXPAND
THROUGH WED AS BETTER DEEP LAYER DPVA MOVES SWD ACROSS CENTRAL NC
AND SC. MID LEVEL TEMPERATURES INCREASE A LITTLE ON WED...SO SFC
BASED CAPE VALUES WILL LIKELY BE LESS THAN TUE. HOWEVER...STORMS
WILL CONTINUE TO BE SLOW MOVERS AND POSE AN ISOLATED HYDRO THREAT.
TEMPERATURES WILL REMAIN ABOUT 15 DEGREES ABOVE NORMAL THROUGHOUT.

&&

.SHORT TERM /WEDNESDAY NIGHT THROUGH FRIDAY/...
AT 220 PM EDT TUESDAY...ON WEDNESDAY NIGHT A HIGH AMPLITUDE UPPER
RIDGE WILL BE OVER MOST OF THE EAST...WITH AN EMBEDDED UPPER LOW
OVER THE MID ATLANTIC COAST...WHILE A CLOSED UPPER LOW WILL BE
LOCATED OVER THE SOUTHERN PLAINS. THE ATLANTIC UPPER LOW WEAKENS
AND DRIFTS SOUTH THROUGH FRIDAY...WHILE THE CLOSED LOW PROGRESSES
NORTHEAST INTO THE CENTRAL PLAINS...AND THE UPPER RIDGE NARROWS
OVER THE APPALACHIANS.

A SURFACE RIDGE WILL REMAIN CENTERED OVER THE WESTERN ATLANTIC...
RESULTING IN A WEAK SOUTHERLY UPSLOPE FLOW INTO THE SOUTHERN
APPALACHIANS ON FRIDAY. MOISTURE ASSOCIATED WITH THE COASTAL UPPER
LOW WILL LINGER ON THE COAST...AND MAY EXTEND AS FAR WEST AS THE
INTERSTATE 77 CORRIDOR ON THURSDAY. ON FRIDAY THE COASTAL MOISTURE
DEPARTS WITH ITS UPPER SYSTEM...WHILE GULF INFLOW INTO THE SOUTHERN
APPALACHIANS IMPROVES AHEAD OF A COLD FRONT. THIS FRONT REACHES THE
MOUNTAINS LATE IN THE DAY ON FRIDAY.

SLIGHT CHANCE TO CHANCE POPS WILL BE CARRIED ON THURSDAY...GREATEST
DURING DAYTIME HEATING AND NEAR THE SOUTH FACING BLUE RIDGE
ESCARPMENT...WHERE LIMITED INSTABILITY AND UPSLOPE FLOW COINCIDE.
AS WARM MOIST SOUTHERLY FLOW AND INSTABILITY INCREASE ON FRIDAY...
GREATER POPS WILL BE CARRIED...ESPECIALLY IN THE WEST OVER TERRAIN.
MODEL HELICITY VALUES APPEAR RATHER TAME ON FRIDAY. TEMPERATURES
WILL REMAIN WELL ABOVE NORMAL UNDER THE UPPER RIDGE.

&&

.LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/...
AS OF 220 PM TUESDAY...MODEL CONSENSUS IS COMING MORE IN LINE SINCE
YESTERDAYS MORNING SOLNS. THE UPPER LEVEL LOW IS NOW WELL DEPICTED
TO BE DROPPING SW INTO THE OH VALLEY AT THE BEGINNING OF THE PERIOD
AND TO CONTINUE SWEEP ACROSS THE CAROLINAS THROUGH SUN. THE LATEST
CMC IS STILL A S/LY OUTLIER...BUT IT/S GOOD TO SEE THE TIGHTER
AGREEMENT BETWEEN THE GFS/ECMWF. OVERALL CONFIDENCE IS SOMEWHAT
ABOVE AVERAGE.

POPS WERE THUS ADJUSTED UP A BIT INTO THE LOW LIKELY CAT FOR SAT
AFTERNOON AND EVENING ACROSS THE NRN MOST ZONES. THE FRONTAL PASSAGE
WILL CONTINUE TO BE CARRIED BY HIGH END CHANCE POPS EARLY SAT. DONT
ANTICIPATE A GREAT PRECIP THREAT AS MOST OF THE MOISTURE WILL BE
ASSOCIATED SOLELY WITH THE INCOMING LOW. PROBABLY ABOUT 1/4 TO 3/4
OF AN INCH OF RAIN IN MOST PLACES THAT ACTUALLY RECEIVE RAINFALL BTW
FRI NIGHT AND SUN MORNING. HOWEVER...ISOL HIGHER AMOUNTS ARE
POSSIBLE WITH THE ADDED CONVECTIVE THREAT SAT. MID LEVEL LAPSE RATES
WILL INCREASE AND IN CONJUNCTION WITH DECENT LLVL INSTABILITY...A
FEW SHOWERS COULD BECOME FAIRLY STRONG. SFC WINDS WILL NOT SHIFT
NW/LY UNTIL THE UPPER LOW IMPINGES UPON THE REGION...SO TEMPS ON SAT
POST FROPA WILL STILL LIKELY REACH ABOUT 10-15 DEGREES F ABOVE
NORMAL. SOME SMALL MEASURE OF AN AIRMASS MIX ON SUN WILL ONLY LOWER
MAXES A FEW DEGREES AS INSOLATION BEGINS TO INCREASE WITH A
STRENGTHENING SUBSIDENCE ZONE.

MON AND TUE WILL COME UNDER THE INFLUENCE OF ANOTHER STRONG UPPER
LEVEL RIDGE AND RELATIVELY DRY ATL SFC HIPRES...SO NO POPS WILL BE
MAINTAINED THESE DAYS AND TEMPS SHOULD REBOUND TO WELL ABOVE NORMAL
TO START THE NEXT WEEK.

&&

.AVIATION /19Z TUESDAY THROUGH SUNDAY/...
AT KCLT...ANY CONVECTION THREATENING THE AIRFIELD LATE TODAY WILL
HAVE TO BE DRIVEN BY OUTFLOWS FROM MTN AND FOOTHILL STORMS...AND
CONFIDENCE IS LOW ON THAT REACHING KCLT. WILL USE CB CLOUD TYPE
AFTER 23Z...AND THEN KEEP CB GOING OVERNIGHT AS A WEAK SHORTWAVE
MOVES SWD TOWARD CENTRAL NC. WILL KEEP ANY CIGS VFR...AND ACCEPT
MVFR CONSENSUS ON FOG TOWARD DAYBREAK. THUNDER CHANCES AT KCLT MAY
BE A BIT BETTER JUST PAST THE CURRENT TAF PERIOD AS THE BEST UPPER
SUPPORT MOVES BY. EXPECT LIGHT SE WINDS THROUGHOUT.

ELSEWHERE...THUNDER CHANCES APPEAR THE BEST FROM KAVL TO KHKY LATE
THIS AFTN THROUGH THIS EVENING. CANNOT RULE OUT TSTMS AT THE UPSTATE
SITES...BUT THIS WILL RELY ON WELL TRAVELED OUTFLOWS TO TRIGGER
ANYTHING. MOST LOCATIONS WILL SEE SCT TO BKN VFR CLOUDS AT 5 KFT OR
LESS...WITH MVFR FOG TOWARD DAYBREAK. THE FOG COULD BE WORSE AT
LOCATIONS RECEIVING RAINFALL THIS EVENING. UPSLOPE TRIGGERING AND A
WEAK SHORTWAVE ARRIVING IN NRLY FLOW ALOFT COULD INCREASE SHRA/TSRA
COVERAGE EARLY WED...BUT UNCERTAINTY IS TOO HIGH TO FEATURE ANY
PRECIPITATION ACROSS WRN NC AT PRESENT. OTHERWISE...EXPECT LIGHT SE
FLOW.

OUTLOOK...A WARM AND UNSTABLE AIRMASS WILL REMAIN IN PLACE THE REST
OF THE WEEK UNTIL A COLD FRONT ARRIVES FROM THE WEST LATE FRI INTO
SAT. EXPECT MAINLY DIURNAL TSTM CHANCES...WITH FOG OR STRATUS
POSSIBLE AROUND DAYBREAK EACH MORNING...ESPECIALLY IN LOCATIONS THAT
SEE RAINFALL THE NIGHT BEFORE.

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...SBK
NEAR TERM...HG
SHORT TERM...JAT
LONG TERM...SBK
AVIATION...HG
Hazardous weather outlook, Mar 20, 3:06 PM EDT, 4 hours 59 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
306 PM EDT TUE MAR 20 2012

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-211915-
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-
306 PM EDT TUE MAR 20 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.

ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS WILL DEVELOP
ACROSS THE REGION THROUGH THE EVENING HOURS. COVERAGE OF THE
THUNDERSTORMS WILL BE GREATEST OVER WESTERN NORTH CAROLINA...WHERE
SOME THUNDERSTORMS MAY LINGER OVERNIGHT. THE MAIN THREAT FROM
THUNDERSTORMS WILL BE LOCALLY HEAVY RAINFALL AND CLOUD TO GROUND
LIGHTNING...BUT A FEW COULD PRODUCE HAIL AS LARGE AS QUARTERS...OR
ISOLATED DAMAGING WIND GUSTS.

.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...OR FLASH FLOODING TO OUR OFFICE.

GERAPETRITIS

In the hours before

Special weather statement, Mar 20, 5:18 PM EDT, 2 hours 47 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
518 PM EDT TUE MAR 20 2012

NCZ069-070-202200-
GASTON-LINCOLN-
518 PM EDT TUE MAR 20 2012

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL LINCOLN AND NORTHERN
GASTON COUNTIES THROUGH 600 PM EDT...

AT 517 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR BOGER CITY...OR NEAR LINCOLNTON...MOVING
SOUTHEAST AT 5 MPH.

THIS STORM WILL BE NEAR...
  IRON STATION...

SMALL HAIL...WIND GUSTS UP TO 40 MPH AND TORRENTIAL RAIN ARE EXPECTED
WITH THIS STORM.

FREQUENT LIGHTNING IS ALSO 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 3531 8117 3543 8137 3556 8126 3556 8118
      3546 8101

JPT
Special weather statement, Mar 20, 5:32 PM EDT, 2 hours 33 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
532 PM EDT TUE MAR 20 2012

NCZ508-510-202215-
EASTERN POLK-GREATER RUTHERFORD-
532 PM EDT TUE MAR 20 2012

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL POLK AND CENTRAL
RUTHERFORD COUNTIES THROUGH 615 PM EDT...

AT 530 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 6 MILES NORTHEAST OF MILL SPRING...OR 7 MILES
WEST OF RUTHERFORDTON...MOVING NORTHWEST AT 5 MPH.

SMALL HAIL...WIND GUSTS UP TO 40 MPH AND TORRENTIAL RAIN ARE EXPECTED
WITH THIS STORM.

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 3551 8203 3534 8195 3524 8213 3535 8223
      3544 8215

JPT
Special weather statement, Mar 20, 5:48 PM EDT, 2 hours 17 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
548 PM EDT TUE MAR 20 2012

NCZ056-202230-
CATAWBA-
548 PM EDT TUE MAR 20 2012

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL CATAWBA COUNTY THROUGH
630 PM EDT...

AT 546 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR CONOVER...OR 5 MILES NORTH OF NEWTON...
MOVING SOUTHEAST AT 5 MPH.

THIS STORM WILL BE NEAR...
  CONOVER...
  NEWTON...
  LOOKOUT SHOALS LAKE...
  CLAREMONT...

SMALL HAIL...WIND GUSTS UP TO 40 MPH AND TORRENTIAL RAIN ARE EXPECTED
WITH THIS STORM.

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 3582 8114 3579 8113 3577 8109 3573 8106
      3572 8107 3571 8105 3571 8100 3555 8113
      3570 8136 3581 8126 3582 8121

JPT
Special weather statement, Mar 20, 6:02 PM EDT, 2 hours 3 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
602 PM EDT TUE MAR 20 2012

NCZ049-050-202245-
MITCHELL-YANCEY-
602 PM EDT TUE MAR 20 2012

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN MITCHELL AND NORTHERN
YANCEY COUNTIES THROUGH 645 PM EDT...

AT 6 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 3 MILES NORTHWEST OF BAKERSVILLE...OR 11 MILES
NORTHWEST OF SPRUCE PINE...MOVING WEST AT 10 MPH.

THIS STORM WILL BE NEAR...
  BULADEAN...
  RAMSEYTOWN...

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

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 3612 8213 3611 8212 3611 8208 3608 8208
      3608 8207 3594 8214 3601 8244 3610 8233
      3615 8222

JPT
Special weather statement, Mar 20, 7:26 PM EDT, 39 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
726 PM EDT TUE MAR 20 2012

GAZ029-SCZ011-210015-
ABBEVILLE-ELBERT-
726 PM EDT TUE MAR 20 2012

...A STRONG THUNDERSTORM WILL AFFECT EASTERN ELBERT AND SOUTHWESTERN
ABBEVILLE COUNTIES THROUGH 815 PM EDT...

AT 723 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 3 MILES EAST OF CALHOUN FALLS...OR 12 MILES
SOUTHWEST OF ABBEVILLE...MOVING WEST AT 5 MPH.

THIS STORM WILL BE NEAR...
  CALHOUN FALLS...
  LAKE RUSSELL...

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

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 3403 8283 3424 8274 3421 8274 3425 8268
      3424 8267 3414 8241 3405 8244 3407 8248
      3407 8253 3401 8259 3398 8258

JOH
Special weather statement, Mar 20, 7:45 PM EDT, 20 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
745 PM EDT TUE MAR 20 2012

NCZ037-057-210030-
DAVIE-ROWAN-
745 PM EDT TUE MAR 20 2012

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL ROWAN AND SOUTHERN DAVIE
COUNTIES THROUGH 830 PM EDT...

AT 744 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR MOCKSVILLE...MOVING SOUTH AT 20 MPH.

THIS STORM WILL BE NEAR...
  COOLEEMEE...
  SPENCER...
  SALISBURY...

SMALL HAIL...WIND GUSTS UP TO 40 MPH AND TORRENTIAL RAIN ARE EXPECTED
WITH THIS STORM.

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 3559 8067 3594 8069 3596 8043 3585 8041
      3583 8043 3582 8047 3579 8047 3577 8045
      3574 8045 3572 8039 3561 8038

JPT

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 20, 8:36 PM EDTSpecial Weather StatementGSPMecklenburg39 min
Mar 20, 9:09 PM EDTSpecial Weather StatementGSPRowan51 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.