Alert archive / North Carolina / Special Weather Statements in 2012

Special Weather Statement, NWS Greenville-Spartanburg, SC

August 2, 2012Transylvania County, North Carolina

NWS Greenville-Spartanburg, SC issued this special weather statement at Aug 2, 2012, 3:13 PM EDT for Transylvania County, North Carolina. It was in force for 47 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: Aug 2, 2012, 3:13 PM EDT (19:13 UTC)
Expired: Aug 2, 2012, 4:00 PM EDT
In force: 47 min
Issued by: NWS Greenville-Spartanburg, SC

County Transylvania County, NC

The radar

The Greer radar (KGSP), 72 km from the middle of the area, began a volume at 19:14 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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 7.2 hours before the alert went out and 233 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: 2296 J/kg
Mixed-layer CIN: -59 J/kg
Mixed-layer LCL: 1169 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: 25 m²/s²
0-3 km storm-relative helicity: 43 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

125 
WWUS82 KGSP 021913
SPSGSP

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
313 PM EDT THU AUG 2 2012

NCZ064-SCZ001-002-022000-
OCONEE MOUNTAINS-PICKENS MOUNTAINS-TRANSYLVANIA-
313 PM EDT THU AUG 2 2012

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN OCONEE...
NORTHWESTERN PICKENS AND SOUTHWESTERN TRANSYLVANIA COUNTIES THROUGH
400 PM EDT...

AT 306 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 4 MILES NORTHWEST OF LAKE JOCASSEE...OR 19 MILES
NORTHWEST OF PICKENS...MOVING SOUTHEAST AT 5 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  LAKE JOCASSEE...

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

LAT...LON 3513 8298 3504 8283 3494 8295 3502 8302
      3503 8301 3504 8304 3505 8305

$$

KRENTZ

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 1, 10:34 PM EDT	Special Weather Statement	GSP	Graham	41 min
Aug 2, 1:15 AM EDT	Special Weather Statement	GSP	Alexander	45 min
Aug 2, 1:25 AM EDT	Severe Thunderstorm Warning	GSP	Alexander, Caldwell, Catawba, Iredell	65 min
Aug 2, 1:54 AM EDT	Severe Thunderstorm Warning	GSP	Catawba, Iredell, Rowan	66 min
Aug 2, 2:12 AM EDT	Areal Flood Advisory	GSP	Alexander	80 min
Aug 2, 2:33 AM EDT	Areal Flood Advisory	GSP	Catawba	91 min
Aug 2, 2:48 AM EDT	Special Weather Statement	GSP	Cabarrus, Lincoln, Rowan	72 min
Aug 2, 3:04 AM EDT	Flash Flood Warning	GSP	Catawba	70 min
Aug 2, 3:07 AM EDT	Special Weather Statement	GSP	Catawba	23 min
Aug 2, 1:11 PM EDT	Special Weather Statement	GSP	McDowell	49 min
Aug 2, 1:48 PM EDT	Severe Thunderstorm Warning	GSP	Burke, McDowell	57 min
Aug 2, 1:52 PM EDT	Special Weather Statement	GSP	Cleveland	23 min
Aug 2, 2:30 PM EDT	Severe Thunderstorm Warning	GSP	McDowell, Rutherford	60 min
Aug 2, 3:10 PM EDT	Severe Thunderstorm Warning	GSP	Buncombe, Henderson, Transylvania	65 min
Aug 2, 3:28 PM EDT	Special Weather Statement	GSP	Transylvania	47 min
Aug 2, 5:51 PM EDT	Special Weather Statement	GSP	Union	39 min
Aug 2, 6:00 PM EDT	Severe Thunderstorm Warning	GSP	Union	60 min
Aug 2, 6:37 PM EDT	Special Weather Statement	GSP	Cabarrus	38 min
Aug 2, 7:04 PM EDT	Areal Flood Advisory	GSP	Cabarrus, Mecklenburg	116 min
Aug 2, 7:06 PM EDT	Special Weather Statement	GSP	Union	39 min
Aug 2, 7:19 PM EDT	Severe Thunderstorm Warning	GSP	Mecklenburg, Union	56 min
Aug 2, 7:48 PM EDT	Severe Thunderstorm Warning	GSP	Mecklenburg	19 min
Aug 2, 3:49 PM EDT	Severe Thunderstorm Warning	GSP	Greenville	18 min
Aug 2, 7:59 PM EDT	Severe Thunderstorm Warning	GSP	York	46 min
Aug 2, 7:57 PM EDT	Special Weather Statement	GSP	Elbert, Hart	48 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.