Alert archive / Georgia / Mesoscale Discussions in 2016

Mesoscale Discussion 1165

July 6, 201655 counties in Georgia; 8 counties in South Carolina

The Storm Prediction Center issued this mesoscale discussion at Jul 6, 2016, 1:14 PM EDT for 55 counties in Georgia; 8 counties in South Carolina. It was in force for 61 min.

The area

The outline as issued.

The facts

Issued
Jul 6, 2016, 1:14 PM EDT (17:14 UTC)
Expired
Jul 6, 2016, 2:15 PM EDT
In force
61 min
Issued by
the Storm Prediction Center
Chance of a watch
40%
All 63 counties

Baldwin County, GA, Bibb County, GA, Bleckley County, GA, Burke County, GA, Butts County, GA, Chattahoochee County, GA, Clarke County, GA, Columbia County, GA, Crawford County, GA, Dooly County, GA, Elbert County, GA, Glascock County, GA, Greene County, GA, Hancock County, GA, Harris County, GA, Hart County, GA, Henry County, GA, Houston County, GA, Jasper County, GA, Jefferson County, GA, Jenkins County, GA, Johnson County, GA, Jones County, GA, Lamar County, GA, Laurens County, GA, Lincoln 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, Peach County, GA, Pike County, GA, Pulaski County, GA, Putnam County, GA, Richmond County, GA, Rockdale County, GA, Schley County, GA, Spalding County, GA, Talbot County, GA, Taliaferro County, GA, Taylor County, GA, Twiggs County, GA, Upson County, GA, Walton County, GA, Warren County, GA, Washington County, GA, Wilkes County, GA, Wilkinson County, GA, Abbeville County, SC, Aiken County, SC, Barnwell County, SC, Edgefield County, SC, Greenwood County, SC, Lexington County, SC, McCormick County, SC, Saluda County, SC

The radar

The Robins AFB radar (KJGX), 59 km from the middle of the area, began a volume at 17:14 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 5.2 hours before the alert went out and 96 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 2016-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1847 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 2016-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 131 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
1847 J/kg
Mixed-layer CIN
-31 J/kg
Mixed-layer LCL
741 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
131 m²/s²
0-3 km storm-relative helicity
150 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 6, 1:53 PM EDTSevere Thunderstorm WatchSPCBaldwin, Banks, Bibb, Bleckley, Burke, Butts and 61 more4 hr
Jul 6, 3:01 PM EDTMesoscale DiscussionSPCBaldwin, Bibb, Bleckley, Burke, Butts, Candler and 45 more59 min
Jul 6, 3:44 PM EDTMesoscale DiscussionSPCBrantley, Bryan, Chatham, Effingham, Evans, Liberty and 4 more61 min
Jul 6, 4:03 PM EDTSevere Thunderstorm WatchSPCBryan, Bulloch, Candler, Chatham, Effingham, Evans and 6 more4 hr
Jul 6, 7:51 PM EDTMesoscale DiscussionSPCFannin, Rabun, Towns, Union, White54 min

Nearby

Mesoscale Discussions in Georgia, 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.