Alert archive / North Carolina / Special Weather Statements in 2012

Special Weather Statement, NWS Greenville-Spartanburg, SC

August 23, 2012Madison County, North Carolina

NWS Greenville-Spartanburg, SC issued this special weather statement at Aug 23, 2012, 5:24 PM EDT for Madison County, North Carolina. It was in force for 36 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 23, 2012, 5:24 PM EDT (21:24 UTC)
Expired: Aug 23, 2012, 6:00 PM EDT
In force: 36 min
Issued by: NWS Greenville-Spartanburg, SC

County Madison County, NC

The radar

The Knoxville radar (KMRX), 79 km from the middle of the area, began a volume at 21:23 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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 9.4 hours before the alert went out and 314 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: 1256 J/kg
Mixed-layer CIN: -25 J/kg
Mixed-layer LCL: 760 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: -22 m²/s²
0-3 km storm-relative helicity: 0 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 Aug 23, 5:00 PM EDT, 24 minutes earlier.

Area forecast discussion, Aug 23, 5:00 PM EDT, 24 minutes before

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Hazardous weather outlook, Aug 23, 4:28 PM EDT, 56 minutes before

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In the hours before

Special weather statement, Aug 23, 2:26 PM EDT, 2 hours 58 minutes before

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Special weather statement, Aug 23, 4:47 PM EDT, 37 minutes before

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Special weather statement, Aug 23, 4:54 PM EDT, 30 minutes before

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Special weather statement, Aug 23, 5:24 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
Aug 22, 10:40 PM EDT	Special Weather Statement	GSP	Polk	35 min
Aug 22, 11:10 PM EDT	Special Weather Statement	GSP	Henderson	35 min
Aug 22, 11:29 PM EDT	Flash Flood Warning	GSP	Henderson, Polk, Rutherford	2 hr
Aug 23, 2:26 PM EDT	Special Weather Statement	GSP	Transylvania	49 min
Aug 23, 4:47 PM EDT	Special Weather Statement	GSP	Buncombe	28 min
Aug 23, 4:54 PM EDT	Special Weather Statement	GSP	Madison	36 min
Aug 23, 5:46 PM EDT	Special Weather Statement	GSP	Madison	29 min
Aug 23, 7:38 PM EDT	Special Weather Statement	GSP	Polk	37 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.