Alert archive / Alabama / Mesoscale Discussions in 2005

Mesoscale Discussion 2524

December 4, 200525 counties in Alabama; 12 counties in Georgia; 13 counties in Mississippi

The Storm Prediction Center issued this mesoscale discussion at Dec 4, 2005, 2:00 AM CST for 25 counties in Alabama; 12 counties in Georgia; 13 counties in Mississippi. It was in force for 90 min.

The area

The outline as issued.

The facts

Issued
Dec 4, 2005, 2:00 AM CST (08:00 UTC)
Expired
Dec 4, 2005, 3:30 AM CST
In force
90 min
Issued by
the Storm Prediction Center
All 50 counties

Bibb County, AL, Blount County, AL, Calhoun County, AL, Cherokee County, AL, Chilton County, AL, Clay County, AL, Cleburne County, AL, Coosa County, AL, Cullman County, AL, DeKalb County, AL, Etowah County, AL, Fayette County, AL, Greene County, AL, Hale County, AL, Jackson County, AL, Jefferson County, AL, Lamar County, AL, Marshall County, AL, Pickens County, AL, Shelby County, AL, St. Clair County, AL, Sumter County, AL, Talladega County, AL, Tuscaloosa County, AL, Walker County, AL, Bartow County, GA, Catoosa County, GA, Chattooga County, GA, Dade County, GA, Floyd County, GA, Gordon County, GA, Haralson County, GA, Murray County, GA, Paulding County, GA, Polk County, GA, Walker County, GA, Whitfield County, GA, Attala County, MS, Choctaw County, MS, Holmes County, MS, Kemper County, MS, Leake County, MS, Lowndes County, MS, Madison County, MS, Neshoba County, MS, Noxubee County, MS, Oktibbeha County, MS, Sharkey County, MS, Winston County, MS, Yazoo County, MS

The radar

The Columbus AFB radar (KGWX), 64 km from the middle of the area, began a volume at 08:02 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

Birmingham, AL (KBMX), launched 00:00Z, 8.0 hours before the alert went out and 101 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, Birmingham, AL at 00:00Z on 2005-12-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 40 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, Birmingham, AL at 00:00Z on 2005-12-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 637 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
40 J/kg
Mixed-layer CIN
-53 J/kg
Mixed-layer LCL
847 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
637 m²/s²
0-3 km storm-relative helicity
916 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.2

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
Dec 3, 9:35 PM CSTMesoscale DiscussionSPCColbert, Franklin, Lamar, Lauderdale, Lawrence, Marion115 min
Dec 3, 10:01 PM CSTTornado WatchSPCColbert, Cullman, Fayette, Franklin, Lamar, Lauderdale and 8 more7 hr
Dec 4, 12:24 PM CSTMesoscale DiscussionSPCAutauga, Barbour, Bibb, Bullock, Butler, Calhoun and 31 more96 min
Dec 4, 1:18 PM CSTSevere Thunderstorm WatchSPCAutauga, Bibb, Blount, Bullock, Calhoun, Chambers and 33 more6 hr
Dec 4, 3:30 PM CSTMesoscale DiscussionSPCAutauga, Bibb, Bullock, Calhoun, Chambers, Chilton and 22 more90 min
Dec 4, 5:45 PM CSTMesoscale DiscussionSPCBaldwin, Clarke, Conecuh, Escambia, Mobile, Monroe and 2 more2 hr
Dec 4, 4:54 PM CSTSevere Thunderstorm WatchSPCBaldwin, Burke, Clarke, Columbia, Elbert, Glascock and 17 more5 hr
Dec 4, 10:14 AM CSTMesoscale DiscussionSPCAdams, Amite, Franklin, Jefferson, Jefferson Davis, Lawrence and 6 more2 hr
Dec 4, 11:39 AM CSTSevere Thunderstorm WatchSPCAdams, Amite, Attala, Choctaw, Claiborne, Clarke and 37 more6 hr
Dec 4, 2:11 PM CSTMesoscale DiscussionSPCAdams, Amite, Claiborne, Clarke, Copiah, Covington and 29 more2 hr

Nearby

Mesoscale Discussions in Alabama, 2005Mesoscale Discussions in Mississippi, 2005Mesoscale Discussions in Georgia, 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; radar from the NEXRAD Level II archive.