Alert archive / Georgia / Mesoscale Discussions in 2016

Mesoscale Discussion 1348

July 21, 20165 states

The Storm Prediction Center issued this mesoscale discussion at Jul 21, 2016, 1:17 PM CDT for 5 states. It was in force for 88 min.

The area

The outline as issued.

The facts

Issued
Jul 21, 2016, 1:17 PM CDT (18:17 UTC)
Expired
Jul 21, 2016, 2:45 PM CDT
In force
88 min
Issued by
the Storm Prediction Center
Chance of a watch
20%
All 172 counties

Autauga County, AL, Barbour County, AL, Blount County, AL, Bullock County, AL, Butler County, AL, Calhoun County, AL, Chambers County, AL, Cherokee County, AL, Chilton County, AL, Clay County, AL, Cleburne County, AL, Coffee County, AL, Coosa County, AL, Covington County, AL, Crenshaw County, AL, Dale County, AL, DeKalb County, AL, Elmore County, AL, Etowah County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, Jefferson County, AL, Lee County, AL, Lowndes County, AL, Macon County, AL, Marshall County, AL, Montgomery County, AL, Pike County, AL, Randolph County, AL, Russell County, AL, Shelby County, AL, St. Clair County, AL, Talladega County, AL, Tallapoosa County, AL, Calhoun County, FL, Gadsden County, FL, Holmes County, FL, Jackson County, FL, Jefferson County, FL, Leon County, FL, Liberty County, FL, Washington County, FL, Baker County, GA, Baldwin County, GA, Banks County, GA, Barrow County, GA, Bartow County, GA, Bibb County, GA, Bleckley County, GA, Butts County, GA, Calhoun County, GA, Carroll County, GA, Chattahoochee County, GA, Chattooga County, GA, Cherokee County, GA, Clarke County, GA, Clay County, GA, Clayton County, GA, Cobb County, GA, Colquitt County, GA, Columbia County, GA, Coweta County, GA, Crawford County, GA, Crisp County, GA, Dawson County, GA, Decatur County, GA, DeKalb County, GA, Dodge County, GA, Dooly County, GA, Dougherty County, GA, Douglas County, GA, Early County, GA, Elbert County, GA, Fannin County, GA, Fayette County, GA, Floyd County, GA, Forsyth County, GA, Franklin County, GA, Fulton County, GA, Gilmer County, GA, Glascock County, GA, Gordon County, GA, Grady 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, Jones County, GA, Lamar County, GA, Laurens County, GA, Lee County, GA, Lincoln County, GA, Lumpkin County, GA, Macon County, GA, Madison County, GA, Marion County, GA, McDuffie County, GA, Meriwether County, GA, Miller County, GA, Mitchell County, GA, Monroe County, GA, Morgan County, GA, Murray 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, Pulaski County, GA, Putnam County, GA, Quitman County, GA, Rabun County, GA, Randolph County, GA, Rockdale County, GA, Schley County, GA, Seminole County, GA, Spalding County, GA, Stephens County, GA, Stewart County, GA, Sumter County, GA, Talbot County, GA, Taliaferro County, GA, Taylor County, GA, Terrell County, GA, Thomas County, GA, Tift County, GA, Towns County, GA, Troup County, GA, Turner County, GA, Twiggs County, GA, Union County, GA, Upson County, GA, Walker County, GA, Walton County, GA, Warren County, GA, Washington County, GA, Webster County, GA, White County, GA, Whitfield County, GA, Wilcox County, GA, Wilkes County, GA, Wilkinson County, GA, Worth County, GA, Clay County, NC, Jackson County, NC, Macon County, NC, Transylvania County, NC, Abbeville County, SC, Anderson County, SC, Edgefield County, SC, Greenville County, SC, Greenwood County, SC, Laurens County, SC, McCormick County, SC, Newberry County, SC, Oconee County, SC, Pickens County, SC, Saluda County, SC

The radar

The Atlanta radar (KFFC), 90 km from the middle of the area, began a volume at 18:20 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, 6.3 hours before the alert went out and 90 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-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 12:00Z on 2016-07-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1259 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 12:00Z on 2016-07-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -8 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
1259 J/kg
Mixed-layer CIN
-79 J/kg
Mixed-layer LCL
1185 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
-8 m²/s²
0-3 km storm-relative helicity
24 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

The text

As transmitted.

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Nearby

Mesoscale Discussions in Georgia, 2016Mesoscale Discussions in Alabama, 2016Mesoscale Discussions in South Carolina, 2016Every mesoscale discussion 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.