Alert archive / Georgia / Severe Thunderstorm Watches in 2007

Severe Thunderstorm Watch 388

June 12, 200786 counties in Georgia; 55 counties in North Carolina; 32 counties in South Carolina

The Storm Prediction Center issued this severe thunderstorm watch at Jun 12, 2007, 2:23 PM EDT for 86 counties in Georgia; 55 counties in North Carolina; 32 counties in South Carolina. It was in force for 8 hr.

The area

The outline as issued.

The facts

Issued: Jun 12, 2007, 2:23 PM EDT (18:23 UTC)
Expired: Jun 12, 2007, 10:00 PM EDT
In force: 8 hr
Issued by: the Storm Prediction Center
Largest hail expected: 2 in
Strongest gust expected: 60 kt

All 173 counties

Baldwin County, GA, Banks County, GA, Barrow County, GA, Bartow County, GA, Bibb County, GA, Bleckley County, GA, Burke County, GA, Butts County, GA, Carroll County, GA, Chattahoochee County, GA, Cherokee County, GA, Clarke County, GA, Clayton County, GA, Cobb County, GA, Columbia County, GA, Coweta County, GA, Crawford County, GA, Dawson County, GA, DeKalb County, GA, Douglas County, GA, Elbert County, GA, Fayette County, GA, Floyd County, GA, Forsyth County, GA, Franklin County, GA, Fulton County, GA, Glascock County, GA, Greene County, GA, Gwinnett County, GA, Habersham County, GA, Hall County, GA, Hancock County, GA, Haralson County, GA, Harris County, GA, Hart County, GA, Heard County, GA, Henry County, GA, Houston County, GA, Jackson County, GA, Jasper County, GA, Jefferson County, GA, Johnson County, GA, Jones County, GA, Lamar County, GA, Lincoln County, GA, Lumpkin County, GA, Macon County, GA, Madison County, GA, Marion County, GA, McDuffie County, GA, Meriwether County, GA, Monroe County, GA, Morgan County, GA, Muscogee County, GA, Newton County, GA, Oconee County, GA, Oglethorpe County, GA, Paulding County, GA, Peach County, GA, Pickens County, GA, Pike County, GA, Polk County, GA, Putnam County, GA, Rabun County, GA, Richmond County, GA, Rockdale County, GA, Schley County, GA, Spalding County, GA, Stephens County, GA, Stewart County, GA, Sumter County, GA, Talbot County, GA, Taliaferro County, GA, Taylor County, GA, Towns County, GA, Troup County, GA, Twiggs County, GA, Union County, GA, Upson County, GA, Walton County, GA, Warren County, GA, Washington County, GA, Webster County, GA, White County, GA, Wilkes County, GA, Wilkinson County, GA, Alamance County, NC, Alexander County, NC, Alleghany County, NC, Anson County, NC, Ashe County, NC, Avery County, NC, Buncombe County, NC, Burke County, NC, Cabarrus County, NC, Caldwell County, NC, Caswell County, NC, Catawba County, NC, Chatham County, NC, Cherokee County, NC, Clay County, NC, Cleveland County, NC, Cumberland County, NC, Davidson County, NC, Davie County, NC, Forsyth County, NC, Gaston County, NC, Graham County, NC, Guilford County, NC, Harnett County, NC, Haywood County, NC, Henderson County, NC, Hoke County, NC, Iredell County, NC, Jackson County, NC, Lee County, NC, Lincoln County, NC, Macon County, NC, Madison County, NC, McDowell County, NC, Mecklenburg County, NC, Mitchell County, NC, Montgomery County, NC, Moore County, NC, Polk County, NC, Randolph County, NC, Richmond County, NC, Rockingham County, NC, Rowan County, NC, Rutherford County, NC, Scotland County, NC, Stanly County, NC, Stokes County, NC, Surry County, NC, Swain County, NC, Transylvania County, NC, Union County, NC, Watauga County, NC, Wilkes County, NC, Yadkin County, NC, Yancey County, NC, Abbeville County, SC, Aiken County, SC, Anderson County, SC, Bamberg County, SC, Barnwell County, SC, Calhoun County, SC, Cherokee County, SC, Chester County, SC, Chesterfield County, SC, Clarendon County, SC, Darlington County, SC, Edgefield County, SC, Fairfield County, SC, Greenville County, SC, Greenwood County, SC, Kershaw County, SC, Lancaster County, SC, Laurens County, SC, Lee County, SC, Lexington County, SC, Marlboro County, SC, McCormick County, SC, Newberry County, SC, Oconee County, SC, Orangeburg County, SC, Pickens County, SC, Richland County, SC, Saluda County, SC, Spartanburg County, SC, Sumter County, SC, Union County, SC, York County, SC

The radar

The Greer radar (KGSP), 59 km from the middle of the area, began a volume at 18:23 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.

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes: 20%
One or more EF2 to EF5 tornadoes: 5%
Ten or more severe wind reports: 40%
One or more gusts of 65 knots or more: 20%
Ten or more severe hail reports: 70%
One or more hailstones of 2 inches or more: 20%
Six or more combined severe hail and wind reports: 90%

Warnings issued inside it

86 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
Jun 12, 2:30 PM EDT	Severe Thunderstorm Warning	GSP	Pickens	60 min
Jun 12, 2:47 PM EDT	Severe Thunderstorm Warning	RAH	Richmond	43 min
Jun 12, 2:48 PM EDT	Severe Thunderstorm Warning	GSP	York	72 min
Jun 12, 2:49 PM EDT	Severe Thunderstorm Warning	RAH	Harnett	41 min
Jun 12, 2:50 PM EDT	Severe Thunderstorm Warning	GSP	Caldwell	55 min
Jun 12, 2:53 PM EDT	Severe Thunderstorm Warning	GSP	Mecklenburg	55 min
Jun 12, 2:57 PM EDT	Severe Thunderstorm Warning	GSP	Burke	78 min
Jun 12, 3:23 PM EDT	Severe Thunderstorm Warning	GSP	Buncombe	67 min
Jun 12, 3:24 PM EDT	Severe Thunderstorm Warning	RAH	Anson	66 min
Jun 12, 3:29 PM EDT	Severe Thunderstorm Warning	GSP	Cleveland	76 min
Jun 12, 3:33 PM EDT	Severe Thunderstorm Warning	ILM	Marlboro	27 min
Jun 12, 3:34 PM EDT	Severe Thunderstorm Warning	GSP	Greenville, Pickens	56 min
Jun 12, 3:40 PM EDT	Severe Thunderstorm Warning	GSP	Gaston	65 min
Jun 12, 3:40 PM EDT	Severe Thunderstorm Warning	RAH	Cumberland	50 min
Jun 12, 3:44 PM EDT	Severe Thunderstorm Warning	GSP	Anderson, Oconee, Pickens	61 min
Jun 12, 3:51 PM EDT	Severe Thunderstorm Warning	GSP	Lincoln	18 min
Jun 12, 3:51 PM EDT	Severe Thunderstorm Warning	RAH	Moore	54 min
Jun 12, 3:51 PM EDT	Severe Thunderstorm Warning	RAH	Hoke, Moore	39 min
Jun 12, 3:56 PM EDT	Severe Thunderstorm Warning	RNK	Alleghany	58 min
Jun 12, 3:58 PM EDT	Severe Thunderstorm Warning	CAE	Chesterfield	29 min
Jun 12, 4:00 PM EDT	Severe Thunderstorm Warning	GSP	York	75 min
Jun 12, 4:01 PM EDT	Severe Thunderstorm Warning	GSP	Rutherford	35 min
Jun 12, 4:06 PM EDT	Severe Thunderstorm Warning	GSP	Transylvania	54 min
Jun 12, 4:11 PM EDT	Severe Thunderstorm Warning	GSP	Union	64 min
Jun 12, 4:26 PM EDT	Severe Thunderstorm Warning	GSP	Rabun	64 min
Jun 12, 4:29 PM EDT	Severe Thunderstorm Warning	GSP	Franklin, Hart, Stephens	61 min
Jun 12, 4:32 PM EDT	Severe Thunderstorm Warning	GSP	Buncombe, Haywood, Henderson	34 min
Jun 12, 4:34 PM EDT	Severe Thunderstorm Warning	GSP	Greenville	56 min
Jun 12, 4:38 PM EDT	Severe Thunderstorm Warning	RAH	Moore	67 min
Jun 12, 4:39 PM EDT	Severe Thunderstorm Warning	GSP	Cherokee	81 min
Jun 12, 4:43 PM EDT	Severe Thunderstorm Warning	GSP	Cleveland	28 min
Jun 12, 4:51 PM EDT	Severe Thunderstorm Warning	FFC	Cobb	24 min
Jun 12, 4:55 PM EDT	Severe Thunderstorm Warning	CAE	Lancaster	50 min
Jun 12, 5:00 PM EDT	Severe Thunderstorm Warning	GSP	Transylvania	60 min
Jun 12, 5:00 PM EDT	Severe Thunderstorm Warning	GSP	McDowell	22 min
Jun 12, 5:04 PM EDT	Severe Thunderstorm Warning	FFC	Dawson, Forsyth	19 min
Jun 12, 5:13 PM EDT	Severe Thunderstorm Warning	GSP	Madison	33 min
Jun 12, 5:20 PM EDT	Severe Thunderstorm Warning	GSP	Spartanburg	70 min
Jun 12, 5:21 PM EDT	Severe Thunderstorm Warning	GSP	Union	69 min
Jun 12, 5:24 PM EDT	Severe Thunderstorm Warning	GSP	Habersham	66 min
Jun 12, 5:29 PM EDT	Severe Thunderstorm Warning	GSP	Greenville	61 min
Jun 12, 5:31 PM EDT	Severe Thunderstorm Warning	GSP	Rabun	59 min
Jun 12, 5:32 PM EDT	Severe Thunderstorm Warning	GSP	Franklin	58 min
Jun 12, 5:35 PM EDT	Severe Thunderstorm Warning	GSP	Jackson	55 min
Jun 12, 5:39 PM EDT	Severe Thunderstorm Warning	FFC	Banks	36 min
Jun 12, 5:42 PM EDT	Severe Thunderstorm Warning	GSP	Oconee, Pickens	63 min
Jun 12, 5:52 PM EDT	Severe Thunderstorm Warning	FFC	Hall	13 min
Jun 12, 5:58 PM EDT	Severe Thunderstorm Warning	FFC	Jackson	47 min
Jun 12, 6:00 PM EDT	Severe Thunderstorm Warning	GSP	Caldwell	60 min
Jun 12, 6:03 PM EDT	Severe Thunderstorm Warning	CAE	Fairfield	42 min
Jun 12, 6:08 PM EDT	Severe Thunderstorm Warning	GSP	Iredell	53 min
Jun 12, 6:14 PM EDT	Severe Thunderstorm Warning	GSP	Laurens	61 min
Jun 12, 6:15 PM EDT	Severe Thunderstorm Warning	GSP	McDowell	25 min
Jun 12, 6:22 PM EDT	Severe Thunderstorm Warning	GSP	Lincoln	53 min
Jun 12, 6:24 PM EDT	Severe Thunderstorm Warning	FFC	White	36 min
Jun 12, 6:34 PM EDT	Severe Thunderstorm Warning	FFC	Barrow	26 min
Jun 12, 6:35 PM EDT	Severe Thunderstorm Warning	FFC	Hall	25 min
Jun 12, 6:46 PM EDT	Severe Thunderstorm Warning	FFC	Jackson	14 min
Jun 12, 7:01 PM EDT	Severe Thunderstorm Warning	GSP	Abbeville, Greenwood	59 min
Jun 12, 7:03 PM EDT	Severe Thunderstorm Warning	FFC	Barrow	27 min
Jun 12, 7:13 PM EDT	Severe Thunderstorm Warning	GSP	Lincoln	23 min
Jun 12, 7:17 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Lexington, Orangeburg	28 min
Jun 12, 7:18 PM EDT	Severe Thunderstorm Warning	FFC	Walton	57 min
Jun 12, 7:23 PM EDT	Severe Thunderstorm Warning	GSP	Hart	28 min
Jun 12, 7:25 PM EDT	Severe Thunderstorm Warning	FFC	Gwinnett	35 min
Jun 12, 7:25 PM EDT	Severe Thunderstorm Warning	CAE	Clarendon	35 min
Jun 12, 7:26 PM EDT	Severe Thunderstorm Warning	FFC	Forsyth	34 min
Jun 12, 7:30 PM EDT	Severe Thunderstorm Warning	CAE	Sumter	30 min
Jun 12, 7:46 PM EDT	Severe Thunderstorm Warning	CAE	Clarendon	44 min
Jun 12, 7:52 PM EDT	Severe Thunderstorm Warning	FFC	DeKalb, Fulton, Rockdale	53 min
Jun 12, 7:56 PM EDT	Severe Thunderstorm Warning	FFC	Gwinnett	34 min
Jun 12, 7:57 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun	29 min
Jun 12, 7:58 PM EDT	Severe Thunderstorm Warning	FFC	Madison	32 min
Jun 12, 8:00 PM EDT	Severe Thunderstorm Warning	CAE	Clarendon	45 min
Jun 12, 8:22 PM EDT	Severe Thunderstorm Warning	CAE	Orangeburg	38 min
Jun 12, 8:29 PM EDT	Severe Thunderstorm Warning	CAE	Bamberg	46 min
Jun 12, 8:30 PM EDT	Severe Thunderstorm Warning	FFC	Henry	45 min
Jun 12, 8:40 PM EDT	Severe Thunderstorm Warning	CAE	Columbia, Lincoln	50 min
Jun 12, 8:56 PM EDT	Severe Thunderstorm Warning	CAE	Bamberg, Barnwell	34 min
Jun 12, 9:11 PM EDT	Severe Thunderstorm Warning	CAE	Columbia, Richmond	37 min
Jun 12, 9:11 PM EDT	Severe Thunderstorm Warning	FFC	Fulton	20 min
Jun 12, 9:14 PM EDT	Severe Thunderstorm Warning	FFC	Henry	31 min
Jun 12, 9:20 PM EDT	Severe Thunderstorm Warning	CAE	Burke	55 min
Jun 12, 9:21 PM EDT	Severe Thunderstorm Warning	FFC	Putnam	39 min
Jun 12, 9:23 PM EDT	Severe Thunderstorm Warning	FFC	Spalding	52 min
Jun 12, 9:42 PM EDT	Severe Thunderstorm Warning	FFC	Lamar	48 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 6.4 hours before the alert went out and 190 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: 473 J/kg
Mixed-layer CIN: -60 J/kg
Mixed-layer LCL: 766 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: -29 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

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 12, 6:03 AM EDT	Mesoscale Discussion	SPC	Lee, Russell	57 min
Jun 12, 12:02 PM EDT	Mesoscale Discussion	SPC	Cherokee, Cleburne	58 min
Jun 12, 1:36 PM EDT	Mesoscale Discussion	SPC	Geneva, Henry, Houston	54 min
Jun 12, 4:02 PM EDT	Mesoscale Discussion	SPC	Autauga, Barbour, Bullock, Butler, Chambers, Coffee and 19 more	28 min
Jun 12, 4:23 PM EDT	Severe Thunderstorm Watch	SPC	Barbour, Bullock, Butler, Coffee, Conecuh, Covington and 12 more	5 hr
Jun 12, 8:25 AM EDT	Severe Thunderstorm Watch	SPC	Camden, Charlton, Clinch, Echols, Ware	7 hr
Jun 12, 11:09 AM EDT	Mesoscale Discussion	SPC	Camden, Charlton, Clinch, Echols, Lanier, Lowndes and 1 more	36 min
Jun 12, 4:48 PM EDT	Mesoscale Discussion	SPC	Baldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 86 more	57 min
Jun 12, 12:55 PM EDT	Severe Thunderstorm Watch	SPC	Arlington, Clarke, Culpeper, Fairfax, Fauquier, Frederick and 21 more	7 hr
Jun 12, 4:23 PM EDT	Mesoscale Discussion	SPC	Arlington, Augusta, Caroline, Clarke, Culpeper, Fairfax and 25 more	67 min
Jun 12, 7:02 PM EDT	Mesoscale Discussion	SPC	Albemarle, Appomattox, Augusta, Buckingham, Caroline, Chesterfield and 37 more	58 min

Nearby

Severe Thunderstorm Watches in Georgia, 2007 Severe Thunderstorm Watches in North Carolina, 2007 Severe Thunderstorm Watches in South Carolina, 2007 Every severe thunderstorm watch in 2007

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.