Alert archive / South Carolina / Special Weather Statements in 2012

Special Weather Statement, NWS Greenville-Spartanburg, SC

October 7, 2012Greenville County, Pickens County, South Carolina

NWS Greenville-Spartanburg, SC issued this special weather statement at Oct 7, 2012, 8:20 AM EDT for Greenville County, Pickens County, South Carolina. It was in force for 25 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
Oct 7, 2012, 8:20 AM EDT (12:20 UTC)
Expired
Oct 7, 2012, 8:45 AM EDT
In force
25 min
Issued by
NWS Greenville-Spartanburg, SC

Counties Greenville County, SC, Pickens County, SC

The radar

The Greer radar (KGSP), 19 km from the middle of the area, began a volume at 12:23 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, 0.3 hours before the alert went out and 267 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 2012-10-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2012-10-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 347 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
744 m above ground
0-6 km bulk shear
67 kt
0-1 km storm-relative helicity
347 m²/s²
0-3 km storm-relative helicity
544 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

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 Oct 7, 7:56 AM EDT, 24 minutes earlier.

Area forecast discussion, Oct 7, 7:56 AM EDT, 24 minutes before
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Hazardous weather outlook, Oct 7, 6:15 AM EDT, 2 hours 5 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
615 AM EDT SUN OCT 7 2012

NCZ033-048>053-058-059-062>065-081015-
AVERY-MADISON-YANCEY-MITCHELL-SWAIN-HAYWOOD-BUNCOMBE-GRAHAM-
NORTHERN JACKSON-MACON-SOUTHERN JACKSON-TRANSYLVANIA-HENDERSON-
615 AM EDT SUN OCT 7 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN NORTH CAROLINA.

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

LOW TEMPERATURES SUNDAY NIGHT AND MONDAY NIGHT WILL BE IN THE
MID TO UPPER 30S FOR PORTIONS OF THE NORTH CAROLINA
MOUNTAIN...MAINLY AT AND NEAR RIDGE TOPS. THIS WILL LIKELY RESULT
IN PATCHY FROST. IF SKIES CLEAR MONDAY NIGHT COMBINED WITH LIGHT
WIND...THAT WILL BE THE MOST LIKELY TIME FOR FROST.

.SPOTTER INFORMATION STATEMENT...

NONE.

GAZ010-017-018-026-028-029-NCZ035>037-056-057-068>072-082-501>510-
SCZ001>014-019-081015-
RABUN-HABERSHAM-STEPHENS-FRANKLIN-HART-ELBERT-ALEXANDER-IREDELL-
DAVIE-CATAWBA-ROWAN-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-
615 AM EDT SUN OCT 7 2012

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

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

NONE.

DEO

In the hours before

Special weather statement, Oct 7, 7:16 AM EDT, 1 hour 4 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
716 AM EDT SUN OCT 7 2012

NCZ071-082-SCZ009-071200-
MECKLENBURG-UNION-YORK-
716 AM EDT SUN OCT 7 2012

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN YORK...NORTHERN
UNION AND SOUTHERN MECKLENBURG COUNTIES THROUGH 800 AM EDT...

AT 714 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 6 MILES WEST OF TEGA CAY...OR 7 MILES NORTHEAST
OF YORK...MOVING EAST AT 45 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  TEGA CAY...
  CAROWINDS...
  PINEVILLE...
  SOUTHPARK MALL...
  STALLINGS...
  MINT HILL...

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

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 3502 8031 3498 8083 3505 8089 3501 8090
      3498 8088 3495 8123 3512 8123 3523 8058
      3517 8046 3517 8039 3518 8037 3517 8033

LANE
Local storm report, Oct 7, 7:47 AM EDT, 33 minutes before
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Local storm report, Oct 7, 7:49 AM EDT, 31 minutes before
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Local storm report, Oct 7, 7:51 AM EDT, 29 minutes before
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Special weather statement, Oct 7, 8:20 AM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Oct 7, 7:39 AM EDTSevere Thunderstorm WarningGSPCabarrus, Mecklenburg, Union50 min
Oct 7, 7:16 AM EDTSpecial Weather StatementGSPYork44 min

Nearby

Special Weather Statements in South Carolina, 2012Every 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.