Alert archive / South Carolina / Special Weather Statements in 2012

Special Weather Statement, NWS Greenville-Spartanburg, SC

May 15, 2012Laurens County, South Carolina

NWS Greenville-Spartanburg, SC issued this special weather statement at May 15, 2012, 1:33 AM 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: May 15, 2012, 1:33 AM EDT (05:33 UTC)
Expired: May 15, 2012, 2:15 AM EDT
In force: 42 min
Issued by: NWS Greenville-Spartanburg, SC

County Laurens County, SC

The radar

The Greer radar (KGSP), 66 km from the middle of the area, began a volume at 05:36 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 00:00Z, 5.6 hours before the alert went out and 236 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: 633 J/kg
Mixed-layer CIN: -31 J/kg
Mixed-layer LCL: 911 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 55 m²/s²
0-3 km storm-relative helicity: 76 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.8

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 May 14, 10:45 PM EDT, 2 hours 48 minutes earlier.

Area forecast discussion, May 14, 10:45 PM EDT, 2 hours 48 minutes before

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Hazardous weather outlook, May 14, 10:57 PM EDT, 2 hours 36 minutes before

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In the hours before

Special weather statement, May 14, 11:00 PM EDT, 2 hours 33 minutes before

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Special weather statement, May 14, 11:33 PM EDT, 2 hours before

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Special weather statement, May 14, 11:45 PM EDT, 1 hour 48 minutes before

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Special weather statement, May 14, 11:58 PM EDT, 1 hour 35 minutes before

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Local storm report, May 15, 12:20 AM EDT, 1 hour 13 minutes before

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Special weather statement, May 15, 1:33 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.

Issued	Product	Office	Counties	Lasted
May 14, 8:08 PM EDT	Special Weather Statement	GSP	Cleveland, Gaston	37 min
May 14, 8:13 PM EDT	Special Weather Statement	GSP	Iredell	47 min
May 14, 8:23 PM EDT	Severe Thunderstorm Warning	GSP	Union	52 min
May 14, 8:38 PM EDT	Areal Flood Advisory	GSP	Iredell, Rowan	112 min
May 14, 9:44 PM EDT	Areal Flood Warning	GSP	Alexander, Caldwell, Iredell	4 hr
May 15, 10:54 AM EDT	Flash Flood Watch	GSP	Alexander, Avery, Buncombe, Burke, Cabarrus, Caldwell and 17 more	17 hr
May 15, 3:51 PM EDT	Special Weather Statement	GSP	Henderson	24 min
May 15, 4:11 PM EDT	Special Weather Statement	GSP	McDowell	34 min
May 15, 4:25 PM EDT	Severe Thunderstorm Warning	GSP	Henderson, Rutherford	36 min
May 15, 4:46 PM EDT	Special Weather Statement	GSP	Avery	44 min
May 15, 4:54 PM EDT	Special Weather Statement	GSP	Macon	51 min
May 15, 5:10 PM EDT	Areal Flood Advisory	GSP	Mitchell, Yancey	80 min
May 15, 5:16 PM EDT	Special Weather Statement	GSP	Swain	29 min
May 15, 6:55 PM EDT	Special Weather Statement	GSP	Transylvania	50 min
May 15, 7:47 PM EDT	Special Weather Statement	GSP	Cabarrus	28 min
May 15, 7:51 PM EDT	Severe Thunderstorm Warning	GSP	Cabarrus	54 min
May 14, 8:21 PM EDT	Special Weather Statement	GSP	Anderson	39 min
May 14, 8:30 PM EDT	Severe Thunderstorm Warning	GSP	Anderson, Greenville, Pickens	60 min
May 14, 8:34 PM EDT	Special Weather Statement	GSP	York	41 min
May 14, 9:34 PM EDT	Special Weather Statement	GSP	Spartanburg	41 min
May 14, 9:56 PM EDT	Special Weather Statement	GSP	Laurens	49 min
May 14, 10:08 PM EDT	Special Weather Statement	GSP	Cherokee	37 min
May 14, 10:22 PM EDT	Special Weather Statement	GSP	York	38 min
May 14, 11:00 PM EDT	Special Weather Statement	GSP	York	45 min
May 14, 11:33 PM EDT	Special Weather Statement	GSP	Laurens	42 min
May 14, 11:45 PM EDT	Special Weather Statement	GSP	Union	45 min
May 14, 11:58 PM EDT	Special Weather Statement	GSP	Chester, York	47 min
May 15, 12:57 AM EDT	Areal Flood Advisory	GSP	Greenwood, Laurens	3 hr
May 15, 12:58 AM EDT	Areal Flood Advisory	GSP	Chester, York	4 hr
May 15, 2:28 AM EDT	Areal Flood Advisory	GSP	Chester, Laurens, Union	4 hr
May 15, 3:02 PM EDT	Severe Thunderstorm Warning	GSP	Cherokee, Spartanburg	39 min
May 15, 4:06 PM EDT	Special Weather Statement	GSP	Union	24 min
May 15, 6:34 PM EDT	Special Weather Statement	GSP	Union	41 min
May 15, 7:44 PM EDT	Special Weather Statement	GSP	Pickens	61 min
May 14, 8:10 PM EDT	Special Weather Statement	GSP	Hart	35 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.