Alert archive / Georgia / Mesoscale Discussions in 2014

Mesoscale Discussion 948

June 10, 201478 counties in Georgia; 7 counties in South Carolina

The Storm Prediction Center issued this mesoscale discussion at Jun 10, 2014, 6:34 PM EDT for 78 counties in Georgia; 7 counties in South Carolina. It was in force for 56 min.

The area

The outline as issued.

The facts

Issued
Jun 10, 2014, 6:34 PM EDT (22:34 UTC)
Expired
Jun 10, 2014, 7:30 PM EDT
In force
56 min
Issued by
the Storm Prediction Center
All 85 counties

Baker County, GA, Baldwin County, GA, Banks County, GA, Barrow County, GA, Bibb County, GA, Bleckley County, GA, Butts County, GA, Calhoun County, GA, Clarke County, GA, Clayton County, GA, Colquitt County, GA, Crawford County, GA, Crisp County, GA, DeKalb County, GA, Dodge County, GA, Dooly County, GA, Dougherty County, GA, Elbert County, GA, Fayette County, GA, Forsyth County, GA, Franklin County, GA, Glascock County, GA, Greene County, GA, Gwinnett County, GA, Habersham County, GA, Hall County, GA, Hancock County, GA, Hart County, GA, Henry County, GA, Houston County, GA, Irwin 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, Mitchell County, GA, Monroe County, GA, Morgan County, GA, Newton County, GA, Oconee County, GA, Oglethorpe County, GA, Peach County, GA, Pike County, GA, Pulaski County, GA, Putnam County, GA, Rabun County, GA, Randolph County, GA, Rockdale County, GA, Schley County, GA, Spalding County, GA, Stephens County, GA, Sumter County, GA, Talbot County, GA, Taliaferro County, GA, Taylor County, GA, Terrell County, GA, Tift County, GA, Towns County, GA, Turner County, GA, Twiggs County, GA, Upson County, GA, Walton County, GA, Warren County, GA, Washington County, GA, Webster County, GA, White County, GA, Wilcox County, GA, Wilkes County, GA, Wilkinson County, GA, Worth County, GA, Abbeville County, SC, Anderson County, SC, Greenville County, SC, Greenwood County, SC, McCormick County, SC, Oconee County, SC, Pickens County, SC

The radar

The Robins AFB radar (KJGX), 67 km from the middle of the area, began a volume at 22:35 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, 10.6 hours before the alert went out and 75 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 2014-06-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1263 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 2014-06-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 54 square meters per square second.193958Sfc1 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
1263 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
512 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
54 m²/s²
0-3 km storm-relative helicity
101 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 9, 9:57 PM EDTSevere Thunderstorm WatchSPCBartow, Carroll, Catoosa, Chattooga, Dade, Floyd and 8 more7 hr
Jun 9, 11:17 PM EDTMesoscale DiscussionSPCCatoosa, Chattooga, Dade, Floyd, Haralson, Polk and 2 more88 min
Jun 10, 11:34 AM EDTMesoscale DiscussionSPCDade116 min
Jun 10, 11:51 AM EDTSevere Thunderstorm WatchSPCCatoosa, Chattooga, Dade, Floyd, Haralson, Polk and 2 more7 hr
Jun 10, 2:57 PM EDTMesoscale DiscussionSPCBanks, Barrow, Bartow, Carroll, Catoosa, Chattooga and 37 more93 min
Jun 10, 3:24 PM EDTSevere Thunderstorm WatchSPCBanks, Barrow, Bartow, Butts, Carroll, Chattahoochee and 55 more8 hr
Jun 10, 4:57 PM EDTMesoscale DiscussionSPCBanks, Barrow, Bartow, Butts, Carroll, Cherokee and 45 more63 min
Jun 10, 6:14 PM EDTMesoscale DiscussionSPCHabersham, Rabun, Towns, White91 min

Nearby

Mesoscale Discussions in Georgia, 2014Mesoscale Discussions in South Carolina, 2014Every mesoscale discussion in 2014

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.