Alert archive / South Carolina / Special Weather Statements in 2012

Special Weather Statement, NWS Greenville-Spartanburg, SC

April 2, 2012Laurens County, South Carolina

NWS Greenville-Spartanburg, SC issued this special weather statement at Apr 2, 2012, 7:48 PM EDT for Laurens County, South Carolina. It was in force for 42 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: Apr 2, 2012, 7:48 PM EDT (23:48 UTC)
Expired: Apr 2, 2012, 8:30 PM EDT
In force: 42 min
Issued by: NWS Greenville-Spartanburg, SC

County Laurens County, SC

The radar

The Greer radar (KGSP), 62 km from the middle of the area, began a volume at 23:51 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

Charleston AFB, SC (KCHS), launched 12:00Z, 11.8 hours before the alert went out and 246 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: 313 J/kg
Mixed-layer CIN: -100 J/kg
Mixed-layer LCL: 1154 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 45 m²/s²
0-3 km storm-relative helicity: 24 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 Apr 2, 7:23 PM EDT, 25 minutes earlier.

Area forecast discussion, Apr 2, 7:23 PM EDT, 25 minutes before

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Hazardous weather outlook, Apr 2, 5:30 PM EDT, 2 hours 18 minutes before

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In the hours before

Special weather statement, Apr 2, 5:44 PM EDT, 2 hours 4 minutes before

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Special weather statement, Apr 2, 5:52 PM EDT, 1 hour 56 minutes before

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Special weather statement, Apr 2, 6:39 PM EDT, 1 hour 9 minutes before

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Special weather statement, Apr 2, 6:45 PM EDT, 1 hour 3 minutes before

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Special weather statement, Apr 2, 6:49 PM EDT, 59 minutes before

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Special weather statement, Apr 2, 7:48 PM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 2, 3:41 PM EDT	Special Weather Statement	GSP	York	49 min
Apr 2, 4:26 PM EDT	Severe Thunderstorm Warning	GSP	Chester	24 min
Apr 2, 5:40 PM EDT	Special Weather Statement	GSP	Union	50 min
Apr 2, 5:44 PM EDT	Special Weather Statement	GSP	Greenville	46 min
Apr 2, 5:52 PM EDT	Special Weather Statement	GSP	Pickens	38 min
Apr 2, 6:39 PM EDT	Special Weather Statement	GSP	Greenville	51 min
Apr 2, 6:45 PM EDT	Special Weather Statement	GSP	Laurens	45 min
Apr 2, 6:49 PM EDT	Special Weather Statement	GSP	Greenwood	41 min
Apr 2, 6:57 PM EDT	Severe Thunderstorm Warning	GSP	Greenville, Laurens, Spartanburg	48 min

Nearby

Special Weather Statements in South 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.