Alert archive / Louisiana / Severe Thunderstorm Watches in 2003

Severe Thunderstorm Watch 373

May 14, 20035 counties in Arkansas; 19 parishes in Louisiana; 19 counties in Mississippi

The Storm Prediction Center issued this severe thunderstorm watch at May 14, 2003, 6:10 PM CDT for 5 counties in Arkansas; 19 parishes in Louisiana; 19 counties in Mississippi. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: May 14, 2003, 6:10 PM CDT (23:10 UTC)
Expired: May 15, 2003, 12:00 AM CDT
In force: 6 hr
Issued by: the Storm Prediction Center

All 43 counties

Ashley County, AR, Columbia County, AR, Lafayette County, AR, Nevada County, AR, Union County, AR, Bienville Parish, LA, Bossier Parish, LA, Caddo Parish, LA, Caldwell Parish, LA, Claiborne Parish, LA, East Carroll Parish, LA, Franklin Parish, LA, Jackson Parish, LA, Lincoln Parish, LA, Madison Parish, LA, Morehouse Parish, LA, Ouachita Parish, LA, Red River Parish, LA, Richland Parish, LA, Tensas Parish, LA, Union Parish, LA, Webster Parish, LA, West Carroll Parish, LA, Winn Parish, LA, Claiborne County, MS, Copiah County, MS, Covington County, MS, Hinds County, MS, Issaquena County, MS, Jefferson County, MS, Jefferson Davis County, MS, Lawrence County, MS, Leake County, MS, Lincoln County, MS, Madison County, MS, Neshoba County, MS, Rankin County, MS, Scott County, MS, Sharkey County, MS, Simpson County, MS, Smith County, MS, Warren County, MS, Yazoo County, MS

The radar

The Shreveport radar (KSHV), 178 km from the middle of the area, began a volume at 23:13 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

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

Issued	Product	Office	Counties	Lasted
May 14, 7:00 PM CDT	Severe Thunderstorm Warning	SHV	Lincoln	60 min
May 14, 7:06 PM CDT	Severe Thunderstorm Warning	SHV	Bienville	39 min
May 14, 7:08 PM CDT	Severe Thunderstorm Warning	JAN	Jefferson	47 min
May 14, 7:19 PM CDT	Severe Thunderstorm Warning	JAN	Jefferson	21 min
May 14, 7:30 PM CDT	Severe Thunderstorm Warning	JAN	Claiborne	30 min
May 14, 7:34 PM CDT	Severe Thunderstorm Warning	SHV	Jackson	56 min
May 14, 7:58 PM CDT	Severe Thunderstorm Warning	SHV	Ouachita	62 min
May 14, 8:10 PM CDT	Severe Thunderstorm Warning	JAN	Lincoln	30 min
May 14, 8:12 PM CDT	Severe Thunderstorm Warning	SHV	Caldwell, Winn	63 min
May 14, 8:14 PM CDT	Flash Flood Warning	SHV	Ouachita	3 hr
May 14, 8:25 PM CDT	Flash Flood Warning	JAN	Franklin, Richland	2 hr
May 14, 8:54 PM CDT	Flash Flood Warning	JAN	Madison	2 hr
May 14, 9:08 PM CDT	Flash Flood Warning	SHV	Jackson	4 hr
May 14, 9:48 PM CDT	Flash Flood Warning	JAN	Warren	2 hr
May 14, 10:08 PM CDT	Tornado Warning	SHV	Caddo	52 min
May 14, 10:40 PM CDT	Severe Thunderstorm Warning	SHV	Jackson, Lincoln	65 min
May 14, 10:51 PM CDT	Severe Thunderstorm Warning	SHV	Bossier	54 min
May 14, 10:54 PM CDT	Severe Thunderstorm Warning	SHV	Ouachita	51 min
May 14, 10:56 PM CDT	Severe Thunderstorm Warning	SHV	Caddo	64 min
May 14, 11:12 PM CDT	Severe Thunderstorm Warning	JAN	Copiah, Hinds	58 min
May 14, 11:21 PM CDT	Severe Thunderstorm Warning	SHV	Webster	54 min
May 14, 11:31 PM CDT	Flash Flood Warning	SHV	Ouachita	6 hr
May 14, 11:37 PM CDT	Tornado Warning	JAN	Copiah	43 min
May 14, 11:49 PM CDT	Flash Flood Warning	JAN	Richland	2 hr

Discussions around it

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

The nearest sounding before it

Shreveport, LA (KSHV), launched 12:00Z, 11.2 hours before the alert went out and 169 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: 480 J/kg
Mixed-layer CIN: -383 J/kg
Mixed-layer LCL: 842 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 84 m²/s²
0-3 km storm-relative helicity: 116 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 13, 8:05 PM CDT	Mesoscale Discussion	SPC	Columbia, Hempstead, Lafayette, Miller, Nevada	55 min
May 14, 5:50 AM CDT	Mesoscale Discussion	SPC	Howard, Little River, Miller, Sevier	115 min
May 14, 10:26 AM CDT	Mesoscale Discussion	SPC	Desha, Phillips	94 min
May 14, 10:55 AM CDT	Mesoscale Discussion	SPC	Columbia, Hempstead, Howard, Lafayette, Little River, Miller and 3 more	2 hr
May 14, 11:10 AM CDT	Severe Thunderstorm Watch	SPC	Phillips	6 hr
May 14, 2:30 PM CDT	Tornado Watch	SPC	Bradley, Calhoun, Clark, Cleveland, Columbia, Dallas and 10 more	6 hr
May 14, 5:17 PM CDT	Mesoscale Discussion	SPC	Columbia, Hempstead, Lafayette, Little River, Miller, Nevada and 1 more	118 min
May 13, 8:30 PM CDT	Severe Thunderstorm Watch	SPC	Bienville, Bossier, Caddo, Caldwell, Catahoula, Claiborne and 15 more	5 hr
May 13, 10:45 PM CDT	Tornado Watch	SPC	Bienville, Bossier, Caddo, Caldwell, Claiborne, De Soto and 11 more	5 hr
May 14, 2:28 PM CDT	Mesoscale Discussion	SPC	Attala, Carroll, Chickasaw, Choctaw, Clay, Holmes and 18 more	62 min

Nearby

Severe Thunderstorm Watches in Louisiana, 2003 Severe Thunderstorm Watches in Mississippi, 2003 Severe Thunderstorm Watches in Arkansas, 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.