Alert archive / Mississippi / Mesoscale Discussions in 2006

Mesoscale Discussion 832

May 10, 20066 counties in Alabama; 12 parishes in Louisiana; 25 counties in Mississippi

The Storm Prediction Center issued this mesoscale discussion at May 10, 2006, 2:42 PM CDT for 6 counties in Alabama; 12 parishes in Louisiana; 25 counties in Mississippi. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: May 10, 2006, 2:42 PM CDT (19:42 UTC)
Expired: May 10, 2006, 4:45 PM CDT
In force: 2 hr
Issued by: the Storm Prediction Center

All 43 counties

Choctaw County, AL, Clarke County, AL, Marengo County, AL, Sumter County, AL, Washington County, AL, Wilcox County, AL, Caldwell Parish, LA, Catahoula Parish, LA, East Carroll Parish, LA, Franklin Parish, LA, Jackson Parish, LA, LaSalle Parish, LA, Madison Parish, LA, Morehouse Parish, LA, Ouachita Parish, LA, Richland Parish, LA, Tensas Parish, LA, West Carroll Parish, LA, Claiborne County, MS, Clarke County, MS, Copiah County, MS, Covington County, MS, Hinds County, MS, Issaquena County, MS, Jasper County, MS, Jefferson County, MS, Jefferson Davis County, MS, Jones County, MS, Lauderdale County, MS, Lawrence County, MS, Leake County, MS, Lincoln County, MS, Madison County, MS, Neshoba County, MS, Newton County, MS, Rankin County, MS, Scott County, MS, Sharkey County, MS, Simpson County, MS, Smith County, MS, Warren County, MS, Wayne County, MS, Yazoo County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 29 km from the middle of the area, began a volume at 19:44 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 nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 7.7 hours before the alert went out and 39 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: 2188 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 511 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 97 m²/s²
0-3 km storm-relative helicity: 163 m²/s²
Significant tornado parameter: 1.6
Supercell composite: 6.4

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
May 9, 9:54 PM CDT	Mesoscale Discussion	SPC	Baldwin, Barbour, Butler, Clarke, Coffee, Conecuh and 13 more	2 hr
May 10, 2:05 AM CDT	Mesoscale Discussion	SPC	Colbert, Fayette, Franklin, Lamar, Lauderdale, Lawrence and 3 more	55 min
May 10, 2:24 AM CDT	Severe Thunderstorm Watch	SPC	Colbert, Fayette, Franklin, Greene, Hale, Lamar and 5 more	5 hr
May 10, 4:01 AM CDT	Mesoscale Discussion	SPC	Fayette, Greene, Hale, Lamar, Pickens, Sumter and 1 more	89 min
May 10, 5:47 AM CDT	Mesoscale Discussion	SPC	Autauga, Barbour, Bibb, Bullock, Butler, Chilton and 30 more	88 min
May 10, 6:32 AM CDT	Severe Thunderstorm Watch	SPC	Autauga, Barbour, Bibb, Bullock, Butler, Chambers and 25 more	6 hr
May 10, 8:31 AM CDT	Mesoscale Discussion	SPC	Fayette, Greene, Lamar, Pickens, Tuscaloosa	89 min
May 10, 9:48 AM CDT	Severe Thunderstorm Watch	SPC	Colbert, Cullman, Fayette, Franklin, Greene, Hale and 12 more	5 hr
May 10, 12:21 PM CDT	Mesoscale Discussion	SPC	Autauga, Bibb, Blount, Calhoun, Chambers, Cherokee and 18 more	84 min
May 10, 12:31 PM CDT	Severe Thunderstorm Watch	SPC	Autauga, Bibb, Blount, Bullock, Calhoun, Chambers and 18 more	5 hr
May 10, 12:42 PM CDT	Mesoscale Discussion	SPC	Barbour, Butler, Choctaw, Clarke, Coffee, Conecuh and 11 more	93 min
May 10, 1:45 PM CDT	Tornado Watch	SPC	Autauga, Baldwin, Barbour, Bullock, Butler, Choctaw and 26 more	7 hr
May 10, 3:23 PM CDT	Mesoscale Discussion	SPC	Barbour, Chambers, Lee, Macon, Russell	2 hr
May 10, 10:57 AM CDT	Mesoscale Discussion	SPC	Caldwell, Catahoula, Claiborne, East Carroll, Franklin, Jackson and 9 more	2 hr
May 10, 12:03 PM CDT	Tornado Watch	SPC	Catahoula, Concordia, East Carroll, Franklin, Madison, Morehouse and 3 more	9 hr
May 10, 12:50 PM CDT	Mesoscale Discussion	SPC	Bienville, De Soto, Grant, Jackson, Natchitoches, Red River and 2 more	115 min
May 10, 1:13 PM CDT	Tornado Watch	SPC	Allen, Avoyelles, Beauregard, Bienville, Bossier, Caddo and 17 more	8 hr
May 10, 6:05 PM CDT	Mesoscale Discussion	SPC	Acadia, Ascension, Assumption, Cameron, East Baton Rouge, East Feliciana and 20 more	85 min
May 10, 12:41 AM CDT	Severe Thunderstorm Watch	SPC	Benton, Bolivar, Carroll, Coahoma, DeSoto, Grenada and 13 more	7 hr
May 10, 6:27 AM CDT	Mesoscale Discussion	SPC	Bolivar, Coahoma, DeSoto, Leflore, Panola, Quitman and 5 more	93 min
May 10, 11:09 AM CDT	Severe Thunderstorm Watch	SPC	Bolivar, Coahoma, Humphreys, Leflore, Quitman, Sharkey and 3 more	3 hr

Nearby

Mesoscale Discussions in Mississippi, 2006 Mesoscale Discussions in Louisiana, 2006 Mesoscale Discussions in Alabama, 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.