Alert archive / Alabama / Severe Thunderstorm Watches in 2003

Severe Thunderstorm Watch 44

March 13, 20034 states

The Storm Prediction Center issued this severe thunderstorm watch at Mar 13, 2003, 3:10 PM CST for 4 states. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued: Mar 13, 2003, 3:10 PM CST (21:10 UTC)
Expired: Mar 13, 2003, 8:00 PM CST
In force: 5 hr
Issued by: the Storm Prediction Center

All 45 counties

Baldwin County, AL, Barbour County, AL, Bullock County, AL, Butler County, AL, Coffee County, AL, Conecuh County, AL, Covington County, AL, Crenshaw County, AL, Dale County, AL, Escambia County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, Mobile County, AL, Monroe County, AL, Pike County, AL, Russell County, AL, Washington County, AL, Calhoun County, FL, Escambia County, FL, Gadsden County, FL, Holmes County, FL, Jackson County, FL, Okaloosa County, FL, Santa Rosa County, FL, Walton County, FL, Washington County, FL, Baker County, GA, Calhoun County, GA, Clay County, GA, Decatur County, GA, Early County, GA, Grady County, GA, Miller County, GA, Quitman County, GA, Randolph County, GA, Seminole County, GA, Stewart County, GA, George County, MS, Greene County, MS, Harrison County, MS, Jackson County, MS, Pearl River County, MS, Perry County, MS, Stone County, MS

The radar

The Mobile radar (KMOB), 78 km from the middle of the area, began a volume at 21:09 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.

Warnings issued inside it

22 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
Mar 13, 3:10 PM CST	Severe Thunderstorm Warning	MOB	Butler, Crenshaw	50 min
Mar 13, 3:16 PM CST	Severe Thunderstorm Warning	MOB	Clarke, Monroe	29 min
Mar 13, 3:23 PM CST	Severe Thunderstorm Warning	LIX	Jackson	52 min
Mar 13, 3:27 PM CST	Severe Thunderstorm Warning	MOB	Washington	33 min
Mar 13, 3:30 PM CST	Severe Thunderstorm Warning	MOB	Clarke, Monroe	30 min
Mar 13, 3:31 PM CST	Severe Thunderstorm Warning	BMX	Pike	44 min
Mar 13, 3:45 PM CST	Severe Thunderstorm Warning	MOB	Conecuh	45 min
Mar 13, 3:46 PM CST	Severe Thunderstorm Warning	MOB	Mobile	44 min
Mar 13, 4:00 PM CST	Severe Thunderstorm Warning	MOB	Butler, Crenshaw	45 min
Mar 13, 4:14 PM CST	Severe Thunderstorm Warning	BMX	Barbour, Pike	46 min
Mar 13, 4:20 PM CST	Severe Thunderstorm Warning	MOB	Covington	40 min
Mar 13, 4:21 PM CST	Severe Thunderstorm Warning	MOB	Baldwin	54 min
Mar 13, 4:26 PM CST	Severe Thunderstorm Warning	MOB	Conecuh	34 min
Mar 13, 4:29 PM CST	Severe Thunderstorm Warning	MOB	Mobile	31 min
Mar 13, 4:38 PM CST	Severe Thunderstorm Warning	MOB	Escambia	22 min
Mar 13, 4:58 PM CST	Severe Thunderstorm Warning	MOB	Covington	47 min
Mar 13, 5:11 PM CST	Severe Thunderstorm Warning	MOB	Baldwin	64 min
Mar 13, 5:13 PM CST	Severe Thunderstorm Warning	MOB	Escambia	32 min
Mar 13, 5:22 PM CST	Severe Thunderstorm Warning	TAE	Henry	38 min
Mar 13, 5:22 PM CST	Severe Thunderstorm Warning	MOB	Okaloosa	53 min
Mar 13, 5:33 PM CST	Severe Thunderstorm Warning	MOB	Baldwin	42 min
Mar 13, 5:44 PM CST	Severe Thunderstorm Warning	MOB	Covington	46 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 9.2 hours before the alert went out and 225 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: 797 J/kg
Mixed-layer CIN: -157 J/kg
Mixed-layer LCL: 711 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 209 m²/s²
0-3 km storm-relative helicity: 247 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 7.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 13, 1:58 AM CST	Mesoscale Discussion	SPC	Covington, Escambia, Geneva, Houston	3 hr
Mar 13, 9:39 AM CST	Mesoscale Discussion	SPC	Autauga, Baldwin, Bibb, Blount, Butler, Calhoun and 40 more	2 hr
Mar 13, 10:10 AM CST	Severe Thunderstorm Watch	SPC	Autauga, Bibb, Blount, Butler, Calhoun, Cherokee and 37 more	6 hr
Mar 13, 12:59 PM CST	Mesoscale Discussion	SPC	Autauga, Bibb, Blount, Butler, Calhoun, Chilton and 30 more	2 hr
Mar 13, 2:15 PM CST	Mesoscale Discussion	SPC	Autauga, Baldwin, Barbour, Bibb, Bullock, Butler and 35 more	2 hr
Mar 13, 5:33 PM CST	Mesoscale Discussion	SPC	Covington	87 min
Mar 13, 5:55 PM CST	Severe Thunderstorm Watch	SPC	Barbour, Dale, Geneva, Henry, Houston, Russell	5 hr
Mar 13, 8:39 AM CST	Mesoscale Discussion	SPC	Alachua, Baker, Bradford, Citrus, Clay, Columbia and 24 more	2 hr
Mar 13, 8:55 AM CST	Tornado Watch	SPC	Alachua, Baker, Bradford, Clay, Columbia, Dixie and 10 more	6 hr
Mar 13, 12:55 PM CST	Mesoscale Discussion	SPC	Fannin, Gilmer, Habersham, Murray, Rabun, Stephens and 4 more	2 hr
Mar 13, 8:50 AM CST	Severe Thunderstorm Watch	SPC	Adams, Amite, Attala, Bolivar, Calhoun, Carroll and 49 more	5 hr
Mar 13, 10:45 AM CST	Severe Thunderstorm Watch	SPC	Hancock, Harrison	5 hr
Mar 13, 11:29 AM CST	Mesoscale Discussion	SPC	Adams, Amite, Attala, Calhoun, Carroll, Chickasaw and 39 more	2 hr
Mar 13, 1:26 PM CST	Mesoscale Discussion	SPC	Hancock	2 hr

Nearby

Severe Thunderstorm Watches in Alabama, 2003 Severe Thunderstorm Watches in Georgia, 2003 Severe Thunderstorm Watches in Florida, 2003 Every severe thunderstorm watch in 2003

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.