Alert archive / Georgia / Mesoscale Discussions in 2006

Mesoscale Discussion 12

January 2, 20065 counties in Alabama; 20 counties in Florida; 26 counties in Georgia

The Storm Prediction Center issued this mesoscale discussion at Jan 2, 2006, 6:45 AM CST for 5 counties in Alabama; 20 counties in Florida; 26 counties in Georgia. It was in force for 30 min.

The area

The outline as issued.

The facts

Issued
Jan 2, 2006, 6:45 AM CST (12:45 UTC)
Expired
Jan 2, 2006, 7:15 AM CST
In force
30 min
Issued by
the Storm Prediction Center
All 51 counties

Coffee County, AL, Covington County, AL, Dale County, AL, Geneva County, AL, Houston County, AL, Bay County, FL, Calhoun County, FL, Columbia County, FL, Franklin County, FL, Gadsden County, FL, Gulf County, FL, Hamilton County, FL, Holmes County, FL, Jackson County, FL, Jefferson County, FL, Leon County, FL, Liberty County, FL, Madison County, FL, Okaloosa County, FL, Santa Rosa County, FL, Suwannee County, FL, Taylor County, FL, Wakulla County, FL, Walton County, FL, Washington County, FL, Atkinson County, GA, Bacon County, GA, Baker County, GA, Berrien County, GA, Brooks County, GA, Calhoun County, GA, Clinch County, GA, Coffee County, GA, Colquitt County, GA, Cook County, GA, Decatur County, GA, Dougherty County, GA, Early County, GA, Echols County, GA, Grady County, GA, Irwin County, GA, Lanier County, GA, Lowndes County, GA, Miller County, GA, Mitchell County, GA, Pierce County, GA, Seminole County, GA, Thomas County, GA, Tift County, GA, Ware County, GA, Worth County, GA

The radar

The Tallahassee radar (KTLH), 45 km from the middle of the area, began a volume at 12:45 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

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 0.8 hours before the alert went out and 47 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, Tallahassee Rgnl, FL at 12:00Z on 2006-01-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1541 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, Tallahassee Rgnl, FL at 12:00Z on 2006-01-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 215 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
1541 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
459 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
215 m²/s²
0-3 km storm-relative helicity
278 m²/s²
Significant tornado parameter
1.6
Supercell composite
9.2

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
Jan 1, 8:26 PM CSTMesoscale DiscussionSPCBarbour, Butler, Coffee, Conecuh, Covington, Crenshaw and 7 more2 hr
Jan 2, 3:01 AM CSTMesoscale DiscussionSPCColbert, Lauderdale59 min
Jan 2, 7:10 AM CSTTornado WatchSPCBarbour, Butler, Coffee, Conecuh, Covington, Crenshaw and 6 more5 hr
Jan 2, 9:47 AM CSTMesoscale DiscussionSPCAutauga, Bibb, Blount, Bullock, Calhoun, Chambers and 23 more88 min
Jan 2, 11:11 AM CSTMesoscale DiscussionSPCColbert, DeKalb, Franklin, Jackson, Lauderdale, Lawrence and 3 more94 min
Jan 2, 3:20 PM CSTMesoscale DiscussionSPCCalhoun, Chambers, Cherokee, Clay, Cleburne, Etowah and 6 more85 min
Jan 2, 10:43 AM CSTMesoscale DiscussionSPCAlachua, Baker, Bradford, Clay, Columbia, Duval and 7 more92 min
Jan 2, 12:23 PM CSTTornado WatchSPCBaker, Columbia, Dixie, Duval, Franklin, Gilchrist and 12 more7 hr
Jan 2, 3:49 PM CSTMesoscale DiscussionSPCAlachua, Baker, Bradford, Clay, Columbia, Dixie and 6 more86 min
Jan 2, 3:47 PM CSTTornado WatchSPCBanks, Barrow, Bartow, Bibb, Bleckley, Butts and 53 more5 hr
Jan 2, 5:16 PM CSTMesoscale DiscussionSPCBurke, Columbia, Emanuel, Glascock, Hancock, Jefferson and 11 more89 min
Jan 2, 5:58 PM CSTTornado WatchSPCBaldwin, Bulloch, Burke, Candler, Columbia, Emanuel and 17 more5 hr

Nearby

Mesoscale Discussions in Georgia, 2006Mesoscale Discussions in Florida, 2006Mesoscale Discussions in Alabama, 2006Every mesoscale discussion in 2006

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.