Alert archive / Georgia / Mesoscale Discussions in 2005

Mesoscale Discussion 86

January 13, 200512 counties in Alabama; 12 counties in Florida; 17 counties in Georgia

The Storm Prediction Center issued this mesoscale discussion at Jan 13, 2005, 1:13 PM CST for 12 counties in Alabama; 12 counties in Florida; 17 counties in Georgia. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Jan 13, 2005, 1:13 PM CST (19:13 UTC)
Expired: Jan 13, 2005, 3:15 PM CST
In force: 2 hr
Issued by: the Storm Prediction Center
Concerning: Tornado watch 11

All 41 counties

Barbour County, AL, Bullock County, AL, Coffee County, AL, Covington County, AL, Crenshaw County, AL, Dale County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, Macon County, AL, Pike County, AL, Russell County, AL, Bay County, FL, Calhoun County, FL, Gadsden County, FL, Holmes County, FL, Jackson County, FL, Leon County, FL, Liberty County, FL, Okaloosa County, FL, Santa Rosa County, FL, Wakulla County, FL, Walton County, FL, Washington County, FL, Baker County, GA, Calhoun County, GA, Chattahoochee County, GA, Clay County, GA, Decatur County, GA, Dougherty County, GA, Early County, GA, Grady County, GA, Miller County, GA, Mitchell County, GA, Muscogee County, GA, Quitman County, GA, Randolph County, GA, Seminole County, GA, Stewart County, GA, Terrell County, GA, Webster County, GA

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 7.2 hours before the alert went out and 235 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: 24 J/kg
Mixed-layer CIN: -129 J/kg
Mixed-layer LCL: 891 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 200 m²/s²
0-3 km storm-relative helicity: 301 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.

Issued	Product	Office	Counties	Lasted
Jan 13, 5:45 AM CST	Tornado Watch	SPC	Bibb, Choctaw, Clarke, Greene, Hale, Marengo and 4 more	5 hr
Jan 13, 7:03 AM CST	Mesoscale Discussion	SPC	Blount, Cullman, Fayette, Franklin, Jefferson, Lamar and 7 more	87 min
Jan 13, 7:15 AM CST	Severe Thunderstorm Watch	SPC	Blount, Colbert, Cullman, Fayette, Franklin, Jackson and 12 more	6 hr
Jan 13, 9:53 AM CST	Mesoscale Discussion	SPC	Blount, Calhoun, Cherokee, Cleburne, DeKalb, Etowah and 2 more	2 hr
Jan 13, 10:12 AM CST	Mesoscale Discussion	SPC	Autauga, Baldwin, Barbour, Bibb, Bullock, Butler and 31 more	63 min
Jan 13, 10:45 AM CST	Tornado Watch	SPC	Autauga, Baldwin, Barbour, Bibb, Bullock, Butler and 29 more	5 hr
Jan 13, 4:40 PM CST	Tornado Watch	SPC	Baldwin, Banks, Bibb, Bleckley, Burke, Butts and 55 more	6 hr
Jan 13, 5:19 PM CST	Mesoscale Discussion	SPC	Appling, Atkinson, Bacon, Baldwin, Brantley, Bulloch and 41 more	41 min

Nearby

Mesoscale Discussions in Georgia, 2005 Mesoscale Discussions in Alabama, 2005 Mesoscale Discussions in Florida, 2005 Every 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.