Alert archive / North Carolina / Special Weather Statements in 2012

Special Weather Statement, NWS Greenville-Spartanburg, SC

September 3, 2012Union County, North Carolina

NWS Greenville-Spartanburg, SC issued this special weather statement at Sep 3, 2012, 2:37 PM EDT for Union County, North Carolina. It was in force for 38 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Sep 3, 2012, 2:37 PM EDT (18:37 UTC)
Expired: Sep 3, 2012, 3:15 PM EDT
In force: 38 min
Issued by: NWS Greenville-Spartanburg, SC

County Union County, NC

The radar

The Columbia radar (KCAE), 144 km from the middle of the area, began a volume at 18:40 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.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 6.6 hours before the alert went out and 118 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: 576 J/kg
Mixed-layer CIN: -44 J/kg
Mixed-layer LCL: 801 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 57 m²/s²
0-3 km storm-relative helicity: 44 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.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Sep 3, 1:56 PM EDT, 41 minutes earlier.

Area forecast discussion, Sep 3, 1:56 PM EDT, 41 minutes before

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Hazardous weather outlook, Sep 3, 5:48 AM EDT, 8 hours 49 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
548 AM EDT MON SEP 3 2012

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-041000-
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-
548 AM EDT MON SEP 3 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 THUNDERSTORMS WILL DEVELOP ACROSS THE REGION TODAY AND
TONIGHT. THE MOST WIDESPREAD THREAT WITH THESE THUNDERSTORMS WILL
BE VERY HEAVY RAINFALL AND OCCASIONAL CLOUD TO GROUND LIGHTNING
STRIKES. IF MULTIPLE THUNDERSTORMS AFFECT THE SAME
LOCATION...ISOLATED FLASH FLOODING OF STREAMS AND CREEKS COULD
RESULT. IN ADDITION...A FEW THUNDERSTORMS MAY BECOME STRONG ENOUGH
TO PRODUCE BRIEF BUT DAMAGING WIND GUSTS. AN ISOLATED...WEAK TORNADO
IS ALSO POSSIBLE TODAY...MAINLY IN THE FAR SOUTHERN
MOUNTAINS...NORTHEAST GEORGIA...AND THE WESTERN UPSTATE OF SOUTH
CAROLINA.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

THE DISSIPATING REMNANTS OF TROPICAL STORM ISAAC WILL CONTINUE TO
MAINTAIN DEEP TROPICAL MOISTURE OVER THE AREA INTO THURSDAY. THIS
WILL RESULT IN HIGH COVERAGE OF HEAVY RAIN SHOWERS AND
THUNDERSTORMS TUESDAY THROUGH WEDNESDAY...AND POSSIBLY INTO
THURSDAY. LOCALIZED FLASH FLOODING IS QUITE POSSIBLE THIS
WEEK...BUT IT REMAINS TOO EARLY TO PIN DOWN A HIGHER RISK AREA FOR
A FLASH FLOOD WATCH.

.SPOTTER INFORMATION STATEMENT...

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

HG

In the hours before

Special weather statement, Sep 3, 1:08 PM EDT, 1 hour 29 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
108 PM EDT MON SEP 3 2012

NCZ072-082-031745-
CABARRUS-UNION-
108 PM EDT MON SEP 3 2012

...STRONG THUNDERSTORMS WILL AFFECT UNION COUNTY NORTH CAROLINA AND
SOUTHERN CABARRUS COUNTY THROUGH 145 PM EDT...

AT 105 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 4 MILES NORTHWEST OF MONROE...MOVING NORTHEAST AT
10 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  WINGATE...
  UNIONVILLE...
  FAIRVIEW...

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

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

FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF OUTDOORS...TRY TO
GET INDOORS OR INTO A HARD TOPPED VEHICLE. OTHERWISE...STAY AWAY FROM
OPEN AREAS AND ISOLATED HIGH OBJECTS SUCH AS TREES. WHEN INDOORS...
STAY AWAY FROM WINDOWS AND DOORS AND AVOID USING WIRED ELECTRONIC
DEVICES. TRY TO UNPLUG UNNECESSARY APPLIANCES BEFORE THE STORM
APPROACHES.

LAT...LON 3512 8028 3485 8055 3499 8069 3531 8047
      3529 8043 3528 8044 3519 8050 3517 8044
      3518 8037 3517 8035 3520 8029 3519 8027

LG

Special weather statement, Sep 3, 1:35 PM EDT, 1 hour 2 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
135 PM EDT MON SEP 3 2012

NCZ070-071-SCZ009-031800-
GASTON-MECKLENBURG-YORK-
135 PM EDT MON SEP 3 2012

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN GASTON...
SOUTHWESTERN MECKLENBURG AND WESTERN YORK COUNTIES THROUGH 200 PM
EDT...

AT 129 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR SHARON...OR 8 MILES SOUTHWEST OF YORK...
MOVING NORTHEAST AT 15 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  YORK AND CLOVER...

WIND GUSTS UP TO 30 MPH...FREQUENT LIGHTNING AND TORRENTIAL RAIN ARE
EXPECTED WITH THIS STORM.

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

FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF OUTDOORS...TRY TO
GET INDOORS OR INTO A HARD TOPPED VEHICLE. OTHERWISE...STAY AWAY FROM
OPEN AREAS AND ISOLATED HIGH OBJECTS SUCH AS TREES. WHEN INDOORS...
STAY AWAY FROM WINDOWS AND DOORS AND AVOID USING WIRED ELECTRONIC
DEVICES. TRY TO UNPLUG UNNECESSARY APPLIANCES BEFORE THE STORM
APPROACHES.

LAKE WYLIE IS IN THE PATH OF THIS STORM. CLOUD TO GROUND LIGHTNING
AND GUSTY WINDS WILL CREATE DANGEROUS BOATING CONDITIONS. MOVE TO
SHORE IMMEDIATELY.

LAT...LON 3482 8134 3482 8135 3491 8148 3494 8148
      3494 8149 3496 8149 3528 8119 3516 8091

LG

Special weather statement, Sep 3, 2:05 PM EDT, 32 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
205 PM EDT MON SEP 3 2012

NCZ070-071-SCZ009-031900-
GASTON-MECKLENBURG-YORK-
205 PM EDT MON SEP 3 2012

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN GASTON...
SOUTHWESTERN MECKLENBURG AND YORK COUNTIES THROUGH 300 PM EDT...

AT 202 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 3 MILES NORTH OF YORK...MOVING NORTHEAST AT 10
MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  CLOVER...
  TEGA CAY...
  LAKE WYLIE...
  CHARLOTTE...

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

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

FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF OUTDOORS...TRY TO
GET INDOORS OR INTO A HARD TOPPED VEHICLE. OTHERWISE...STAY AWAY FROM
OPEN AREAS AND ISOLATED HIGH OBJECTS SUCH AS TREES. WHEN INDOORS...
STAY AWAY FROM WINDOWS AND DOORS AND AVOID USING WIRED ELECTRONIC
DEVICES. TRY TO UNPLUG UNNECESSARY APPLIANCES BEFORE THE STORM
APPROACHES.

LAKE WYLIE IS IN THE PATH OF THIS STORM. CLOUD TO GROUND LIGHTNING
AND GUSTY WINDS WILL CREATE DANGEROUS BOATING CONDITIONS. MOVE TO
SHORE IMMEDIATELY.

LAT...LON 3540 8098 3521 8080 3489 8114 3502 8138

LG

Special weather statement, Sep 3, 2:37 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
237 PM EDT MON SEP 3 2012

NCZ082-031915-
UNION-
237 PM EDT MON SEP 3 2012

...A STRONG THUNDERSTORM WILL AFFECT UNION COUNTY THROUGH 315 PM
EDT...

AT 234 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR MONROE...MOVING NORTHEAST AT 15 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  WINGATE...
  MARSHVILLE...
  UNIONVILLE...

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

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

FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF OUTDOORS...TRY TO
GET INDOORS OR INTO A HARD TOPPED VEHICLE. OTHERWISE...STAY AWAY FROM
OPEN AREAS AND ISOLATED HIGH OBJECTS SUCH AS TREES. WHEN INDOORS...
STAY AWAY FROM WINDOWS AND DOORS AND AVOID USING WIRED ELECTRONIC
DEVICES. TRY TO UNPLUG UNNECESSARY APPLIANCES BEFORE THE STORM
APPROACHES.

LAT...LON 3505 8029 3481 8048 3491 8072 3518 8050
      3519 8049 3517 8044 3518 8037 3517 8035
      3520 8029 3519 8027

LG

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 3, 12:51 PM EDT	Areal Flood Advisory	GSP	Davie	99 min
Sep 3, 1:08 PM EDT	Special Weather Statement	GSP	Union	37 min
Sep 3, 2:19 PM EDT	Flash Flood Warning	GSP	Davie	4 hr
Sep 3, 2:43 PM EDT	Special Weather Statement	GSP	Rowan	47 min
Sep 3, 3:04 PM EDT	Special Weather Statement	GSP	Polk	41 min
Sep 3, 3:09 PM EDT	Severe Thunderstorm Warning	GSP	Polk, Rutherford	32 min
Sep 3, 3:20 PM EDT	Special Weather Statement	GSP	Union	40 min
Sep 3, 3:32 PM EDT	Special Weather Statement	GSP	Catawba, Lincoln	43 min
Sep 3, 3:46 PM EDT	Special Weather Statement	GSP	Rutherford	44 min
Sep 3, 3:48 PM EDT	Special Weather Statement	GSP	Cleveland, Rutherford	42 min
Sep 3, 4:06 PM EDT	Special Weather Statement	GSP	Mecklenburg	24 min
Sep 3, 4:14 PM EDT	Special Weather Statement	GSP	Union	46 min
Sep 3, 4:19 PM EDT	Special Weather Statement	GSP	Alexander, Caldwell, Davie, Iredell	56 min
Sep 3, 4:51 PM EDT	Severe Thunderstorm Warning	GSP	Davie, Iredell, Rowan	39 min
Sep 3, 4:55 PM EDT	Special Weather Statement	GSP	Mecklenburg	50 min
Sep 3, 5:19 PM EDT	Severe Thunderstorm Warning	GSP	Gaston, Mecklenburg	56 min
Sep 3, 5:30 PM EDT	Special Weather Statement	GSP	Davie, Iredell	45 min
Sep 3, 5:32 PM EDT	Areal Flood Advisory	GSP	Cabarrus, Gaston, Lincoln, Mecklenburg, Union	118 min
Sep 3, 5:55 PM EDT	Special Weather Statement	GSP	Lincoln	35 min
Sep 3, 6:11 PM EDT	Areal Flood Advisory	GSP	Davie, Iredell, Rowan	109 min
Sep 3, 1:35 PM EDT	Special Weather Statement	GSP	York	25 min
Sep 3, 2:05 PM EDT	Special Weather Statement	GSP	York	55 min
Sep 3, 3:50 PM EDT	Special Weather Statement	GSP	Abbeville	40 min
Sep 3, 4:32 PM EDT	Special Weather Statement	GSP	Chester, York	43 min
Sep 3, 4:35 PM EDT	Special Weather Statement	GSP	Abbeville, Anderson, Greenville, Greenwood, Laurens	55 min
Sep 3, 5:05 PM EDT	Severe Thunderstorm Warning	GSP	Chester, York	40 min
Sep 3, 5:27 PM EDT	Special Weather Statement	GSP	Union	48 min
Sep 3, 5:31 PM EDT	Special Weather Statement	GSP	Greenville, Laurens	44 min
Sep 3, 5:38 PM EDT	Severe Thunderstorm Warning	GSP	Anderson, Greenville, Greenwood, Laurens, Pickens, Spartanburg	52 min

Nearby

Special Weather Statements in North Carolina, 2012 Every special weather statement 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.