Alert archive / Alabama / Mesoscale Discussions in 2005

Mesoscale Discussion 339

March 22, 200514 counties in Alabama; Escambia County, Okaloosa County, Santa Rosa County, Florida; 5 counties in Mississippi

The Storm Prediction Center issued this mesoscale discussion at Mar 22, 2005, 9:44 AM CST for 14 counties in Alabama; Escambia County, Okaloosa County, Santa Rosa County, Florida; 5 counties in Mississippi. It was in force for 61 min.

The area

The outline as issued.

The facts

Issued: Mar 22, 2005, 9:44 AM CST (15:44 UTC)
Expired: Mar 22, 2005, 10:45 AM CST
In force: 61 min
Issued by: the Storm Prediction Center

All 22 counties

Baldwin County, AL, Butler County, AL, Choctaw County, AL, Clarke County, AL, Conecuh County, AL, Covington County, AL, Dallas County, AL, Escambia County, AL, Lowndes County, AL, Marengo County, AL, Mobile County, AL, Monroe County, AL, Washington County, AL, Wilcox County, AL, Escambia County, FL, Okaloosa County, FL, Santa Rosa County, FL, George County, MS, Greene County, MS, Hancock County, MS, Harrison County, MS, Jackson County, MS

The radar

The Mobile radar (KMOB), 36 km from the middle of the area, began a volume at 15:46 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, 3.7 hours before the alert went out and 230 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: 759 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 213 m²/s²
0-3 km storm-relative helicity: 265 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
Mar 22, 6:55 AM CST	Tornado Watch	SPC	Baldwin, Butler, Choctaw, Clarke, Conecuh, Dallas and 7 more	6 hr
Mar 22, 7:38 AM CST	Mesoscale Discussion	SPC	Barbour, Bullock, Coffee, Covington, Crenshaw, Dale and 5 more	67 min
Mar 22, 7:40 AM CST	Tornado Watch	SPC	Barbour, Bullock, Coffee, Crenshaw, Dale, Geneva and 4 more	6 hr
Mar 22, 8:49 AM CST	Mesoscale Discussion	SPC	Autauga, Bibb, Blount, Calhoun, Chambers, Cherokee and 30 more	26 min
Mar 22, 9:15 AM CST	Severe Thunderstorm Watch	SPC	Autauga, Bibb, Calhoun, Chambers, Chilton, Clay and 23 more	6 hr
Mar 22, 12:51 PM CST	Mesoscale Discussion	SPC	Barbour, Bullock, Butler, Coffee, Covington, Crenshaw and 8 more	54 min
Mar 22, 1:20 PM CST	Tornado Watch	SPC	Henry, Houston	7 hr
Mar 22, 3:43 PM CST	Mesoscale Discussion	SPC	Choctaw, Greene, Sumter, Washington	2 hr
Mar 22, 4:50 PM CST	Severe Thunderstorm Watch	SPC	Colbert, Cullman, Franklin, Lauderdale, Lawrence, Marion and 1 more	5 hr
Mar 22, 9:38 AM CST	Mesoscale Discussion	SPC	Alachua, Baker, Bradford, Clay, Columbia, Duval and 6 more	2 hr
Mar 22, 10:05 AM CST	Tornado Watch	SPC	Alachua, Baker, Bradford, Clay, Columbia, Duval and 9 more	7 hr
Mar 22, 1:37 PM CST	Mesoscale Discussion	SPC	Alachua, Baker, Bradford, Clay, Columbia, Dixie and 15 more	83 min
Mar 22, 3:41 PM CST	Mesoscale Discussion	SPC	Alachua, Baker, Bradford, Clay, Columbia, Duval and 9 more	34 min
Mar 22, 4:00 PM CST	Tornado Watch	SPC	Alachua, Baker, Bradford, Clay, Columbia, Duval and 8 more	6 hr
Mar 22, 5:10 PM CST	Mesoscale Discussion	SPC	Alachua, Baker, Bradford, Clay, Columbia, Duval and 6 more	95 min
Mar 22, 1:45 AM CST	Tornado Watch	SPC	Adams, Attala, Carroll, Claiborne, Copiah, Franklin and 15 more	6 hr
Mar 22, 3:00 AM CST	Tornado Watch	SPC	Wilkinson	5 hr
Mar 22, 3:57 AM CST	Mesoscale Discussion	SPC	Adams, Attala, Carroll, Claiborne, Copiah, Franklin and 14 more	2 hr
Mar 22, 5:59 AM CST	Mesoscale Discussion	SPC	Adams, Amite, Attala, Carroll, Claiborne, Copiah and 8 more	2 hr
Mar 22, 11:55 AM CST	Mesoscale Discussion	SPC	Benton, Bolivar, Carroll, Coahoma, DeSoto, Grenada and 11 more	95 min
Mar 22, 12:55 PM CST	Severe Thunderstorm Watch	SPC	Attala, Bolivar, Calhoun, Carroll, Choctaw, Coahoma and 20 more	7 hr
Mar 22, 2:39 PM CST	Mesoscale Discussion	SPC	Coahoma, DeSoto, Lafayette, Marshall, Panola, Quitman and 2 more	96 min
Mar 22, 4:27 PM CST	Mesoscale Discussion	SPC	Alcorn, Benton, Marshall, Tippah	33 min

Nearby

Mesoscale Discussions in Alabama, 2005 Mesoscale Discussions in Mississippi, 2005 Mesoscale Discussions in Florida, 2005 Every 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.