Alert archive / Georgia / Mesoscale Discussions in 2005

Mesoscale Discussion 87

January 13, 200547 counties in Georgia; 6 counties in South Carolina

The Storm Prediction Center issued this mesoscale discussion at Jan 13, 2005, 6:19 PM EST for 47 counties in Georgia; 6 counties in South Carolina. It was in force for 41 min.

The area

The outline as issued.

The facts

Issued
Jan 13, 2005, 6:19 PM EST (23:19 UTC)
Expired
Jan 13, 2005, 7:00 PM EST
In force
41 min
Issued by
the Storm Prediction Center
Concerning
Severe thunderstorm potential
All 53 counties

Appling County, GA, Atkinson County, GA, Bacon County, GA, Baldwin County, GA, Brantley County, GA, Bulloch County, GA, Burke County, GA, Candler County, GA, Charlton County, GA, Clinch County, GA, Coffee County, GA, Columbia County, GA, Dodge County, GA, Echols County, GA, Elbert County, GA, Emanuel County, GA, Evans County, GA, Glascock County, GA, Greene County, GA, Hancock County, GA, Hart County, GA, Jeff Davis County, GA, Jefferson County, GA, Jenkins County, GA, Johnson County, GA, Laurens County, GA, Lincoln County, GA, Long County, GA, McDuffie County, GA, Montgomery County, GA, Oglethorpe County, GA, Pierce County, GA, Putnam County, GA, Richmond County, GA, Screven County, GA, Taliaferro County, GA, Tattnall County, GA, Telfair County, GA, Toombs County, GA, Treutlen County, GA, Ware County, GA, Warren County, GA, Washington County, GA, Wayne County, GA, Wheeler County, GA, Wilkes County, GA, Wilkinson County, GA, Abbeville County, SC, Aiken County, SC, Barnwell County, SC, Edgefield County, SC, Greenwood County, SC, McCormick County, SC

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 11.3 hours before the alert went out and 220 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 2005-01-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 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 2005-01-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 325 square meters per square second.19395878Sfc1 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
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
444 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
325 m²/s²
0-3 km storm-relative helicity
344 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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
Jan 13, 10:53 AM ESTMesoscale DiscussionSPCBartow, Catoosa, Chattooga, Cherokee, Cobb, Dade and 17 more2 hr
Jan 13, 11:12 AM ESTMesoscale DiscussionSPCHarris, Muscogee, Troup63 min
Jan 13, 11:45 AM ESTTornado WatchSPCHarris, Heard, Meriwether, Muscogee, Quitman, Troup5 hr
Jan 13, 2:13 PM ESTMesoscale DiscussionSPCBaker, Calhoun, Chattahoochee, Clay, Decatur, Dougherty and 11 more2 hr
Jan 13, 5:40 PM ESTTornado WatchSPCBaldwin, Banks, Bibb, Bleckley, Burke, Butts and 55 more6 hr

Nearby

Mesoscale Discussions in Georgia, 2005Mesoscale Discussions in South Carolina, 2005Every mesoscale discussion in 2005

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.