Alert archive / Alabama / Mesoscale Discussions in 2008

Mesoscale Discussion 51

January 10, 20085 states

The Storm Prediction Center issued this mesoscale discussion at Jan 10, 2008, 3:42 PM CST for 5 states. It was in force for 93 min.

The area

The outline as issued.

The facts

Issued
Jan 10, 2008, 3:42 PM CST (21:42 UTC)
Expired
Jan 10, 2008, 5:15 PM CST
In force
93 min
Issued by
the Storm Prediction Center
All 117 counties

Bibb County, AL, Blount County, AL, Chilton County, AL, Choctaw County, AL, Clarke County, AL, Colbert County, AL, Cullman County, AL, Dallas County, AL, DeKalb County, AL, Etowah County, AL, Fayette County, AL, Franklin County, AL, Greene County, AL, Hale County, AL, Jackson County, AL, Jefferson County, AL, Lamar County, AL, Lauderdale County, AL, Lawrence County, AL, Limestone County, AL, Madison County, AL, Marengo County, AL, Marion County, AL, Marshall County, AL, Mobile County, AL, Morgan County, AL, Perry County, AL, Pickens County, AL, Shelby County, AL, St. Clair County, AL, Sumter County, AL, Tuscaloosa County, AL, Walker County, AL, Washington County, AL, Wilcox County, AL, Winston County, AL, Allen County, KY, Clinton County, KY, Cumberland County, KY, Monroe County, KY, Ascension Parish, LA, Assumption Parish, LA, East Baton Rouge Parish, LA, Iberville Parish, LA, Livingston Parish, LA, Orleans Parish, LA, Saint Bernard Parish, LA, Saint Charles Parish, LA, Saint Helena Parish, LA, Saint James Parish, LA, Saint John the Baptist Parish, LA, Saint Tammany Parish, LA, Tangipahoa Parish, LA, Washington Parish, LA, Clarke County, MS, Covington County, MS, Forrest County, MS, George County, MS, Greene County, MS, Hancock County, MS, Harrison County, MS, Jackson County, MS, Jasper County, MS, Jefferson Davis County, MS, Jones County, MS, Kemper County, MS, Lamar County, MS, Lauderdale County, MS, Lawrence County, MS, Lowndes County, MS, Marion County, MS, Monroe County, MS, Neshoba County, MS, Newton County, MS, Noxubee County, MS, Pearl River County, MS, Perry County, MS, Pike County, MS, Scott County, MS, Simpson County, MS, Smith County, MS, Stone County, MS, Walthall County, MS, Wayne County, MS, Winston County, MS, Bedford County, TN, Cannon County, TN, Clay County, TN, Coffee County, TN, Davidson County, TN, DeKalb County, TN, Fentress County, TN, Franklin County, TN, Giles County, TN, Grundy County, TN, Jackson County, TN, Lawrence County, TN, Lewis County, TN, Lincoln County, TN, Macon County, TN, Marion County, TN, Marshall County, TN, Maury County, TN, Moore County, TN, Overton County, TN, Pickett County, TN, Putnam County, TN, Rutherford County, TN, Sequatchie County, TN, Smith County, TN, Sumner County, TN, Trousdale County, TN, Van Buren County, TN, Warren County, TN, White County, TN, Williamson County, TN, Wilson County, TN

The radar

The Columbus AFB radar (KGWX), 109 km from the middle of the area, began a volume at 21:44 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

Birmingham, AL (KBMX), launched 12:00Z, 9.7 hours before the alert went out and 128 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 12:00Z on 2008-01-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 261 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 12:00Z on 2008-01-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 162 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
261 J/kg
Mixed-layer CIN
-34 J/kg
Mixed-layer LCL
621 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
162 m²/s²
0-3 km storm-relative helicity
132 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

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 10, 9:23 AM CSTMesoscale DiscussionSPCBibb, Blount, Colbert, Cullman, Fayette, Franklin and 13 more67 min
Jan 10, 11:33 AM CSTTornado Watch PDSSPCBaldwin, Bibb, Blount, Choctaw, Clarke, Colbert and 27 more9 hr
Jan 10, 1:42 PM CSTMesoscale DiscussionSPCChoctaw, Clarke, Colbert, Cullman, Fayette, Franklin and 15 more93 min
Jan 10, 3:05 PM CSTMesoscale DiscussionSPCAutauga, Bibb, Blount, Calhoun, Cherokee, Chilton and 40 more115 min
Jan 10, 5:16 PM CSTTornado WatchSPCAutauga, Barbour, Bullock, Butler, Calhoun, Chambers and 27 more8 hr
Jan 10, 5:25 PM CSTMesoscale DiscussionSPCAutauga, Baldwin, Bibb, Blount, Chilton, Choctaw and 32 more95 min
Jan 10, 7:52 AM CSTMesoscale DiscussionSPCAllen, Ballard, Barren, Breckinridge, Butler, Caldwell and 30 more113 min
Jan 10, 1:03 PM CSTMesoscale DiscussionSPCAdair, Allen, Anderson, Barren, Bourbon, Boyle and 46 more87 min
Jan 10, 2:19 PM CSTTornado WatchSPCAdair, Allen, Anderson, Barren, Bath, Boyle and 42 more5 hr
Jan 10, 3:25 AM CSTMesoscale DiscussionSPCBienville, Bossier, Caddo, Claiborne, De Soto, East Carroll and 10 more2 hr
Jan 10, 7:17 AM CSTMesoscale DiscussionSPCAcadia, Allen, Ascension, Assumption, Avoyelles, Beauregard and 43 more118 min
Jan 10, 7:46 AM CSTTornado WatchSPCAvoyelles, Catahoula, Concordia, East Baton Rouge, East Carroll, East Feliciana and 14 more8 hr
Jan 10, 10:11 AM CSTMesoscale DiscussionSPCConcordia, East Baton Rouge, East Feliciana, Pointe Coupee, Saint Helena, Tangipahoa and 3 more64 min
Jan 10, 12:09 PM CSTMesoscale DiscussionSPCAvoyelles, Concordia, East Baton Rouge, East Feliciana, Livingston, Pointe Coupee and 6 more96 min

Nearby

Mesoscale Discussions in Alabama, 2008Mesoscale Discussions in Tennessee, 2008Mesoscale Discussions in Mississippi, 2008Every mesoscale discussion in 2008

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.