Alert archive / Georgia / Severe Thunderstorm Watches in 2016

Severe Thunderstorm Watch 266

June 17, 201698 counties in Georgia; 30 counties in South Carolina

The Storm Prediction Center issued this severe thunderstorm watch at Jun 17, 2016, 1:52 PM EDT for 98 counties in Georgia; 30 counties in South Carolina. It was in force for 8 hr.

The area

The outline as issued.

The facts

Issued: Jun 17, 2016, 1:52 PM EDT (17:52 UTC)
Expired: Jun 17, 2016, 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 128 counties

Baldwin County, GA, Barrow County, GA, Bartow County, GA, Bibb County, GA, Bleckley County, GA, Bryan County, GA, Bulloch County, GA, Burke County, GA, Butts County, GA, Candler County, GA, Carroll County, GA, Chatham 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, Crisp County, GA, DeKalb County, GA, Dodge County, GA, Dooly County, GA, Douglas County, GA, Effingham County, GA, Elbert County, GA, Emanuel County, GA, Evans County, GA, Fayette County, GA, Floyd County, GA, Forsyth County, GA, Fulton County, GA, Glascock County, GA, Greene County, GA, Gwinnett County, GA, Hall County, GA, Hancock County, GA, Haralson County, GA, Harris County, GA, Heard County, GA, Henry County, GA, Houston County, GA, Jackson County, GA, Jasper County, GA, Jefferson County, GA, Jenkins County, GA, Johnson County, GA, Jones County, GA, Lamar County, GA, Laurens County, GA, Liberty County, GA, Lincoln County, GA, Long County, GA, Macon County, GA, Madison County, GA, Marion County, GA, McDuffie County, GA, McIntosh County, GA, Meriwether County, GA, Monroe County, GA, Montgomery County, GA, Morgan County, GA, Muscogee County, GA, Newton County, GA, Oconee County, GA, Oglethorpe County, GA, Paulding County, GA, Peach County, GA, Pike County, GA, Polk County, GA, Pulaski County, GA, Putnam County, GA, Richmond County, GA, Rockdale County, GA, Schley County, GA, Screven County, GA, Spalding County, GA, Stewart County, GA, Sumter County, GA, Talbot County, GA, Taliaferro County, GA, Tattnall County, GA, Taylor County, GA, Telfair County, GA, Toombs County, GA, Treutlen County, GA, Troup County, GA, Twiggs County, GA, Upson County, GA, Walton County, GA, Warren County, GA, Washington County, GA, Webster County, GA, Wheeler County, GA, Wilcox County, GA, Wilkes County, GA, Wilkinson County, GA, Abbeville County, SC, Aiken County, SC, Allendale County, SC, Bamberg County, SC, Barnwell County, SC, Beaufort County, SC, Berkeley County, SC, Calhoun County, SC, Charleston County, SC, Clarendon County, SC, Colleton County, SC, Darlington County, SC, Dorchester County, SC, Edgefield County, SC, Fairfield County, SC, Florence County, SC, Georgetown County, SC, Greenwood County, SC, Hampton County, SC, Jasper County, SC, Kershaw County, SC, Lee County, SC, Lexington County, SC, McCormick County, SC, Newberry County, SC, Orangeburg County, SC, Richland County, SC, Saluda County, SC, Sumter County, SC, Williamsburg County, SC

The radar

The Robins AFB radar (KJGX), 81 km from the middle of the area, began a volume at 17:52 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: 10%
One or more EF2 to EF5 tornadoes: 5%
Ten or more severe wind reports: 60%
One or more gusts of 65 knots or more: 20%
Ten or more severe hail reports: 30%
One or more hailstones of 2 inches or more: 30%
Six or more combined severe hail and wind reports: 80%

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
Jun 17, 2:01 PM EDT	Severe Thunderstorm Warning	FFC	Cobb, Floyd, Paulding, Polk	44 min
Jun 17, 2:07 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Clarendon, Kershaw, Richland, Sumter	38 min
Jun 17, 2:15 PM EDT	Severe Thunderstorm Warning	CAE	Clarendon, Lee, Sumter	60 min
Jun 17, 2:26 PM EDT	Severe Thunderstorm Warning	FFC	Newton, Rockdale	34 min
Jun 17, 2:37 PM EDT	Severe Thunderstorm Warning	CAE	Columbia, Richmond	53 min
Jun 17, 2:43 PM EDT	Severe Thunderstorm Warning	CAE	Aiken, Bamberg, Barnwell, Calhoun, Clarendon, Lexington and 2 more	62 min
Jun 17, 2:45 PM EDT	Severe Thunderstorm Warning	FFC	Carroll, Douglas, Fulton	18 min
Jun 17, 2:45 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Clarendon, Sumter	30 min
Jun 17, 2:49 PM EDT	Severe Thunderstorm Warning	FFC	Floyd, Haralson, Polk	41 min
Jun 17, 2:50 PM EDT	Severe Thunderstorm Warning	ILM	Williamsburg	32 min
Jun 17, 2:51 PM EDT	Severe Thunderstorm Warning	CHS	Berkeley, Colleton, Dorchester	54 min
Jun 17, 2:52 PM EDT	Severe Thunderstorm Warning	FFC	Butts, Henry, Jasper, Newton	38 min
Jun 17, 2:59 PM EDT	Severe Thunderstorm Warning	CAE	Aiken	31 min
Jun 17, 3:01 PM EDT	Severe Thunderstorm Warning	CAE	Columbia, Lincoln	29 min
Jun 17, 3:10 PM EDT	Severe Thunderstorm Warning	CAE	Columbia, McDuffie, Richmond	35 min
Jun 17, 3:17 PM EDT	Severe Thunderstorm Warning	CAE	Burke, Richmond	43 min
Jun 17, 3:18 PM EDT	Severe Thunderstorm Warning	FFC	Baldwin, Hancock, Jones, Putnam	42 min
Jun 17, 3:20 PM EDT	Tornado Warning	ILM	Georgetown, Williamsburg	25 min
Jun 17, 3:23 PM EDT	Severe Thunderstorm Warning	CHS	Screven	67 min
Jun 17, 3:25 PM EDT	Severe Thunderstorm Warning	ILM	Georgetown, Williamsburg	65 min
Jun 17, 3:33 PM EDT	Severe Thunderstorm Warning	FFC	Carroll, Haralson, Polk	42 min
Jun 17, 3:36 PM EDT	Severe Thunderstorm Warning	CHS	Berkeley, Charleston, Colleton, Dorchester	54 min
Jun 17, 3:42 PM EDT	Severe Thunderstorm Warning	ILM	Georgetown, Williamsburg	33 min
Jun 17, 3:43 PM EDT	Severe Thunderstorm Warning	FFC	Glascock, Hancock, Warren, Washington	47 min
Jun 17, 3:44 PM EDT	Severe Thunderstorm Warning	CHS	Berkeley, Colleton, Dorchester	61 min
Jun 17, 3:49 PM EDT	Severe Thunderstorm Warning	GSP	Abbeville, Greenwood	41 min
Jun 17, 3:50 PM EDT	Severe Thunderstorm Warning	FFC	Jones	28 min
Jun 17, 3:52 PM EDT	Severe Thunderstorm Warning	FFC	Lamar, Pike, Upson	38 min
Jun 17, 3:53 PM EDT	Severe Thunderstorm Warning	CAE	Bamberg, Barnwell, Orangeburg	52 min
Jun 17, 3:59 PM EDT	Severe Thunderstorm Warning	FFC	Carroll, Coweta, Heard	46 min
Jun 17, 4:02 PM EDT	Severe Thunderstorm Warning	CHS	Jenkins, Screven	58 min
Jun 17, 4:08 PM EDT	Severe Thunderstorm Warning	CHS	Beaufort, Colleton, Hampton, Jasper	67 min
Jun 17, 4:12 PM EDT	Severe Thunderstorm Warning	CAE	Burke	18 min
Jun 17, 4:15 PM EDT	Severe Thunderstorm Warning	FFC	Johnson, Washington, Wilkinson	45 min
Jun 17, 4:27 PM EDT	Severe Thunderstorm Warning	CHS	Berkeley, Charleston, Colleton, Dorchester	63 min
Jun 17, 4:29 PM EDT	Severe Thunderstorm Warning	CHS	Screven	61 min
Jun 17, 4:30 PM EDT	Severe Thunderstorm Warning	FFC	Crawford, Taylor, Upson	30 min
Jun 17, 4:34 PM EDT	Severe Thunderstorm Warning	FFC	Crawford, Houston, Peach	41 min
Jun 17, 4:43 PM EDT	Severe Thunderstorm Warning	FFC	Heard, Troup	47 min
Jun 17, 4:47 PM EDT	Severe Thunderstorm Warning	CHS	Bulloch, Effingham, Jenkins, Screven	58 min
Jun 17, 4:50 PM EDT	Severe Thunderstorm Warning	CHS	Beaufort, Colleton, Jasper	55 min
Jun 17, 4:57 PM EDT	Severe Thunderstorm Warning	FFC	Harris, Meriwether, Troup	48 min
Jun 17, 4:59 PM EDT	Severe Thunderstorm Warning	FFC	Bleckley, Dodge, Laurens	46 min
Jun 17, 5:12 PM EDT	Severe Thunderstorm Warning	FFC	Bleckley, Houston, Pulaski, Twiggs	28 min
Jun 17, 5:22 PM EDT	Severe Thunderstorm Warning	CHS	Bryan, Bulloch, Chatham, Effingham	53 min
Jun 17, 5:29 PM EDT	Severe Thunderstorm Warning	FFC	Emanuel, Montgomery, Toombs, Treutlen	46 min
Jun 17, 5:30 PM EDT	Severe Thunderstorm Warning	CHS	Bulloch, Candler, Effingham, Evans, Screven, Tattnall	60 min
Jun 17, 5:41 PM EDT	Severe Thunderstorm Warning	CHS	Bryan, Chatham	64 min
Jun 17, 5:49 PM EDT	Severe Thunderstorm Warning	FFC	Bleckley, Dodge, Laurens, Telfair, Wheeler	41 min
Jun 17, 5:50 PM EDT	Severe Thunderstorm Warning	FFC	Dooly, Pulaski, Wilcox	40 min
Jun 17, 5:56 PM EDT	Severe Thunderstorm Warning	CAE	Columbia, Richmond	34 min
Jun 17, 6:12 PM EDT	Severe Thunderstorm Warning	FFC	Montgomery, Toombs	33 min
Jun 17, 6:13 PM EDT	Severe Thunderstorm Warning	CHS	Bryan, Bulloch, Chatham, Effingham, Evans, Liberty and 2 more	62 min
Jun 17, 6:27 PM EDT	Severe Thunderstorm Warning	FFC	Dodge, Telfair, Wheeler	48 min
Jun 17, 6:31 PM EDT	Severe Thunderstorm Warning	FFC	Chattahoochee, Muscogee	44 min
Jun 17, 6:41 PM EDT	Severe Thunderstorm Warning	CHS	Bryan, Chatham, Liberty, Long	64 min
Jun 17, 6:44 PM EDT	Severe Thunderstorm Warning	FFC	Montgomery, Toombs	31 min
Jun 17, 6:54 PM EDT	Severe Thunderstorm Warning	GSP	Elbert	51 min
Jun 17, 7:04 PM EDT	Severe Thunderstorm Warning	CHS	Liberty, Long, McIntosh	56 min
Jun 17, 7:12 PM EDT	Severe Thunderstorm Warning	FFC	Telfair	33 min
Jun 17, 7:15 PM EDT	Severe Thunderstorm Warning	FFC	Oglethorpe, Wilkes	30 min
Jun 17, 7:27 PM EDT	Severe Thunderstorm Warning	FFC	Stewart, Webster	35 min
Jun 17, 7:30 PM EDT	Severe Thunderstorm Warning	FFC	Dooly, Macon, Pulaski, Wilcox	45 min
Jun 17, 7:56 PM EDT	Severe Thunderstorm Warning	FFC	Dooly, Houston, Macon, Pulaski	49 min
Jun 17, 8:04 PM EDT	Severe Thunderstorm Warning	FFC	Dodge, Laurens, Telfair, Wheeler	41 min
Jun 17, 8:22 PM EDT	Severe Thunderstorm Warning	FFC	Crisp, Dodge, Dooly, Pulaski, Wilcox	38 min
Jun 17, 8:44 PM EDT	Severe Thunderstorm Warning	FFC	Dodge, Laurens, Telfair, Wheeler	46 min
Jun 17, 8:58 PM EDT	Severe Thunderstorm Warning	FFC	Crisp, Dodge, Wilcox	32 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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 5.9 hours before the alert went out and 148 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: 1265 J/kg
Mixed-layer CIN: -151 J/kg
Mixed-layer LCL: 1321 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 88 m²/s²
0-3 km storm-relative helicity: 65 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 17, 12:34 PM EDT	Mesoscale Discussion	SPC	Carroll, Chattahoochee, Coweta, Douglas, Fayette, Haralson and 13 more	116 min
Jun 17, 12:59 PM EDT	Mesoscale Discussion	SPC	Appling, Bacon, Baldwin, Barrow, Ben Hill, Bibb and 80 more	2 hr
Jun 17, 3:44 PM EDT	Mesoscale Discussion	SPC	Appling, Baldwin, Ben Hill, Bibb, Bleckley, Bryan and 55 more	61 min
Jun 17, 5:08 PM EDT	Severe Thunderstorm Watch	SPC	Appling, Atkinson, Bacon, Baker, Ben Hill, Berrien and 34 more	6 hr
Jun 17, 7:15 PM EDT	Mesoscale Discussion	SPC	Clay, Early, Quitman	60 min
Jun 17, 7:38 PM EDT	Mesoscale Discussion	SPC	Appling, Atkinson, Bacon, Baker, Ben Hill, Berrien and 32 more	67 min

Nearby

Severe Thunderstorm Watches in Georgia, 2016 Severe Thunderstorm Watches in South Carolina, 2016 Every severe thunderstorm watch in 2016

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.