Alert archive / Mississippi / Mesoscale Discussions in 2007

Mesoscale Discussion 204

February 24, 20075 states

The Storm Prediction Center issued this mesoscale discussion at Feb 24, 2007, 10:11 PM CST for 5 states. It was in force for 64 min.

The area

The outline as issued.

The facts

Issued: Feb 24, 2007, 10:11 PM CST (04:11 UTC)
Expired: Feb 24, 2007, 11:15 PM CST
In force: 64 min
Issued by: the Storm Prediction Center

All 112 counties

Bibb County, AL, Blount County, AL, Calhoun County, AL, Cherokee 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, Morgan County, AL, Perry County, AL, Pickens County, AL, Shelby County, AL, St. Clair County, AL, Sumter County, AL, Talladega County, AL, Tuscaloosa County, AL, Walker County, AL, Washington County, AL, Winston County, AL, Catoosa County, GA, Chattooga County, GA, Dade County, GA, Walker County, GA, Whitfield County, GA, Concordia Parish, LA, Adams County, MS, Alcorn County, MS, Amite County, MS, Attala County, MS, Calhoun County, MS, Carroll County, MS, Chickasaw County, MS, Choctaw County, MS, Claiborne County, MS, Clarke County, MS, Clay County, MS, Copiah County, MS, Covington County, MS, Forrest County, MS, Franklin County, MS, Greene County, MS, Grenada County, MS, Hinds County, MS, Holmes County, MS, Itawamba County, MS, Jasper County, MS, Jefferson County, MS, Jefferson Davis County, MS, Jones County, MS, Kemper County, MS, Lamar County, MS, Lauderdale County, MS, Lawrence County, MS, Leake County, MS, Lee County, MS, Lincoln County, MS, Lowndes County, MS, Madison County, MS, Marion County, MS, Monroe County, MS, Montgomery County, MS, Neshoba County, MS, Newton County, MS, Noxubee County, MS, Oktibbeha County, MS, Perry County, MS, Pike County, MS, Pontotoc County, MS, Prentiss County, MS, Rankin County, MS, Scott County, MS, Simpson County, MS, Smith County, MS, Tippah County, MS, Tishomingo County, MS, Union County, MS, Walthall County, MS, Warren County, MS, Wayne County, MS, Webster County, MS, Wilkinson County, MS, Winston County, MS, Yazoo County, MS, Bradley County, TN, Franklin County, TN, Giles County, TN, Hamilton County, TN, Hardin County, TN, Lawrence County, TN, Lincoln County, TN, Marion County, TN, McNairy County, TN, Moore County, TN, Wayne County, TN

The radar

The Jackson/Brandon,MS radar (KDGX), 54 km from the middle of the area, began a volume at 04:11 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

Jackson, MS (KJAN), launched 00:00Z, 4.2 hours before the alert went out and 60 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: 311 J/kg
Mixed-layer CIN: -34 J/kg
Mixed-layer LCL: 817 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 409 m²/s²
0-3 km storm-relative helicity: 662 m²/s²
Significant tornado parameter: 1.2
Supercell composite: 5.1

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
Feb 24, 7:52 PM CST	Tornado Watch	SPC	Bibb, Blount, Calhoun, Cherokee, Chilton, Choctaw and 32 more	7 hr
Feb 25, 1:29 AM CST	Mesoscale Discussion	SPC	Autauga, Bibb, Butler, Calhoun, Chambers, Cherokee and 30 more	61 min
Feb 25, 3:10 PM CST	Mesoscale Discussion	SPC	Bryan, Chatham, Effingham, Liberty	2 hr
Feb 24, 6:44 PM CST	Mesoscale Discussion	SPC	Caldwell, Catahoula, Concordia, East Carroll, Franklin, Grant and 7 more	61 min

Nearby

Mesoscale Discussions in Mississippi, 2007 Mesoscale Discussions in Alabama, 2007 Mesoscale Discussions in Tennessee, 2007 Every mesoscale discussion in 2007

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.