Alert archive / Tennessee / Mesoscale Discussions in 2006

Mesoscale Discussion 2213

November 15, 20068 counties in Mississippi; 11 counties in Tennessee

The Storm Prediction Center issued this mesoscale discussion at Nov 15, 2006, 12:46 PM CST for 8 counties in Mississippi; 11 counties in Tennessee. It was in force for 119 min.

The area

The outline as issued.

The facts

Issued: Nov 15, 2006, 12:46 PM CST (18:46 UTC)
Expired: Nov 15, 2006, 2:45 PM CST
In force: 119 min
Issued by: the Storm Prediction Center

Counties Alcorn County, MS, Benton County, MS, Lafayette County, MS, Marshall County, MS, Prentiss County, MS, Tippah County, MS, Tishomingo County, MS, Union County, MS, Chester County, TN, Decatur County, TN, Fayette County, TN, Hardeman County, TN, Hardin County, TN, Haywood County, TN, Henderson County, TN, Madison County, TN, McNairy County, TN, Shelby County, TN, Tipton County, TN

The radar

The Memphis radar (KNQA), 104 km from the middle of the area, began a volume at 18:48 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

Little Rock, AR (KLZK), launched 12:00Z, 6.8 hours before the alert went out and 117 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 689 m above ground
0-6 km bulk shear: 64 kt
0-1 km storm-relative helicity: -51 m²/s²
0-3 km storm-relative helicity: 8 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
Nov 14, 6:46 PM CST	Mesoscale Discussion	SPC	Bolivar, Washington	119 min
Nov 14, 9:15 PM CST	Mesoscale Discussion	SPC	Alcorn, Attala, Benton, Bolivar, Calhoun, Carroll and 30 more	2 hr
Nov 14, 10:07 PM CST	Mesoscale Discussion	SPC	Wilkinson	83 min
Nov 14, 11:25 PM CST	Tornado Watch	SPC	Adams, Amite, Claiborne, Copiah, Covington, Forrest and 12 more	6 hr
Nov 14, 11:32 PM CST	Mesoscale Discussion	SPC	Adams, Amite, Attala, Bolivar, Carroll, Choctaw and 41 more	58 min
Nov 15, 1:30 AM CST	Mesoscale Discussion	SPC	Attala, Clarke, George, Greene, Hancock, Harrison and 21 more	2 hr
Nov 15, 1:59 AM CST	Tornado Watch PDS	SPC	Adams, Amite, Attala, Bolivar, Carroll, Choctaw and 54 more	8 hr
Nov 15, 2:16 AM CST	Mesoscale Discussion	SPC	Issaquena, Jefferson	119 min
Nov 15, 2:29 AM CST	Mesoscale Discussion	SPC	Benton, Coahoma, DeSoto, Lafayette, Lee, Marshall and 6 more	2 hr
Nov 15, 4:30 AM CST	Tornado Watch	SPC	Alcorn, Benton, Calhoun, Chickasaw, Coahoma, DeSoto and 16 more	5 hr
Nov 15, 5:55 AM CST	Mesoscale Discussion	SPC	Forrest, George, Greene, Hancock, Harrison, Jackson and 3 more	95 min
Nov 15, 7:14 AM CST	Mesoscale Discussion	SPC	Adams, Alcorn, Amite, Attala, Benton, Calhoun and 54 more	2 hr
Nov 15, 9:30 AM CST	Mesoscale Discussion	SPC	Clarke, Covington, Forrest, George, Greene, Hancock and 24 more	60 min
Nov 15, 9:54 AM CST	Tornado Watch	SPC	Clarke, Covington, Forrest, George, Greene, Hancock and 12 more	11 hr
Nov 15, 11:14 AM CST	Mesoscale Discussion	SPC	Bedford, Cannon, Cheatham, Coffee, Davidson, DeKalb and 22 more	91 min

Nearby

Mesoscale Discussions in Tennessee, 2006 Mesoscale Discussions in Mississippi, 2006 Every 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.