Alert archive / Georgia / Special Weather Statements in 2012

Special Weather Statement, NWS Greenville-Spartanburg, SC

July 31, 2012Macon County, North Carolina; Habersham County, Rabun County, Georgia

NWS Greenville-Spartanburg, SC issued this special weather statement at Jul 31, 2012, 2:57 AM EDT for Macon County, North Carolina; Habersham County, Rabun County, Georgia. It was in force for 48 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: Jul 31, 2012, 2:57 AM EDT (06:57 UTC)
Expired: Jul 31, 2012, 3:45 AM EDT
In force: 48 min
Issued by: NWS Greenville-Spartanburg, SC

Counties Habersham County, GA, Rabun County, GA, Macon County, NC

The radar

The Greer radar (KGSP), 118 km from the middle of the area, began a volume at 06:59 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

Nashville Metro, TN (KBNA), launched 00:00Z, 7.0 hours before the alert went out and 311 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: 1699 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 1518 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 17 m²/s²
0-3 km storm-relative helicity: 192 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 5.4

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 Jul 31, 2:14 AM EDT, 43 minutes earlier.

Area forecast discussion, Jul 31, 2:14 AM EDT, 43 minutes before

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Hazardous weather outlook, Jul 30, 10:31 PM EDT, 4 hours 26 minutes before

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In the hours before

Special weather statement, Jul 31, 2:57 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
Jul 31, 10:10 AM EDT	Areal Flood Advisory	GSP	Haywood	110 min
Jul 31, 12:45 PM EDT	Areal Flood Advisory	GSP	Avery	105 min
Jul 31, 1:12 PM EDT	Areal Flood Advisory	GSP	Greenville	108 min
Jul 31, 2:16 PM EDT	Flash Flood Warning	GSP	Greenville	6 hr
Jul 31, 3:19 PM EDT	Areal Flood Advisory	GSP	Greenville, Laurens	2 hr
Jul 31, 5:26 PM EDT	Areal Flood Advisory	GSP	Greenville	5 hr

Nearby

Special Weather Statements in Georgia, 2012 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.