Alert archive / Louisiana / Severe Thunderstorm Watches in 2004

Severe Thunderstorm Watch 375

June 1, 200418 parishes in Louisiana; Newton County, Texas

The Storm Prediction Center issued this severe thunderstorm watch at Jun 1, 2004, 11:20 PM CDT for 18 parishes in Louisiana; Newton County, Texas. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Jun 1, 2004, 11:20 PM CDT (04:20 UTC)
Expired
Jun 2, 2004, 4:00 AM CDT
In force
5 hr
Issued by
the Storm Prediction Center

Counties Acadia Parish, LA, Allen Parish, LA, Avoyelles Parish, LA, Beauregard Parish, LA, Bienville Parish, LA, Caldwell Parish, LA, De Soto Parish, LA, Evangeline Parish, LA, Grant Parish, LA, Lafayette Parish, LA, LaSalle Parish, LA, Natchitoches Parish, LA, Rapides Parish, LA, Red River Parish, LA, Sabine Parish, LA, Saint Landry Parish, LA, Vernon Parish, LA, Winn Parish, LA, Newton County, TX

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jun 2, 12:38 AM CDTSevere Thunderstorm WarningSHVCaddo, De Soto52 min
Jun 2, 1:05 AM CDTSevere Thunderstorm WarningSHVSabine85 min
Jun 2, 1:24 AM CDTSevere Thunderstorm WarningSHVRed River51 min
Jun 2, 1:25 AM CDTSevere Thunderstorm WarningLCHJasper, Newton35 min
Jun 2, 1:38 AM CDTSevere Thunderstorm WarningSHVNatchitoches62 min
Jun 2, 1:41 AM CDTSevere Thunderstorm WarningSHVBienville94 min
Jun 2, 2:16 AM CDTSevere Thunderstorm WarningSHVGrant, Winn64 min
Jun 2, 2:19 AM CDTSevere Thunderstorm WarningLCHBeauregard, Vernon41 min
Jun 2, 2:51 AM CDTSevere Thunderstorm WarningLCHRapides39 min
Jun 2, 3:07 AM CDTSevere Thunderstorm WarningSHVCaldwell, LaSalle53 min
Jun 2, 3:11 AM CDTSevere Thunderstorm WarningLCHAllen, Beauregard, Calcasieu, Jefferson Davis49 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

Shreveport, LA (KSHV), launched 00:00Z, 4.3 hours before the alert went out and 119 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-pSkew-T log-p diagram, Shreveport, LA at 00:00Z on 2004-06-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3213 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Shreveport, LA at 00:00Z on 2004-06-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 6 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
3213 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
1187 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
6 m²/s²
0-3 km storm-relative helicity
69 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.4

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 1, 9:50 PM CDTSevere Thunderstorm WatchSPCCaddo6 hr
Jun 1, 10:45 PM CDTMesoscale DiscussionSPCAllen, Avoyelles, Bienville, Bossier, Caddo, Caldwell and 16 more60 min
Jun 2, 1:34 AM CDTMesoscale DiscussionSPCAcadia, Allen, Avoyelles, Beauregard, Bienville, Caddo and 14 more116 min
Jun 2, 3:30 AM CDTSevere Thunderstorm WatchSPCAscension, Catahoula, Concordia, East Baton Rouge, East Feliciana, Franklin and 16 more5 hr
Jun 2, 5:45 AM CDTMesoscale DiscussionSPCAscension, Catahoula, Concordia, East Baton Rouge, East Feliciana, Franklin and 16 more2 hr
Jun 2, 5:30 PM CDTSevere Thunderstorm WatchSPCBossier, Caddo, Claiborne, Webster6 hr
Jun 2, 11:26 AM CDTMesoscale DiscussionSPCArcher, Austin, Bastrop, Bell, Bosque, Brazoria and 39 more2 hr
Jun 2, 1:40 PM CDTMesoscale DiscussionSPCDallam3 hr
Jun 2, 2:50 PM CDTSevere Thunderstorm WatchSPCClay4 hr
Jun 2, 3:19 PM CDTMesoscale DiscussionSPCBorden, Briscoe, Cottle, Crosby, Dawson, Dickens and 21 more116 min
Jun 2, 3:20 PM CDTTornado WatchSPCArmstrong, Carson, Collingsworth, Donley, Gray, Hansford and 10 more7 hr
Jun 2, 4:10 PM CDTSevere Thunderstorm WatchSPCAndrews, Borden, Cottle, Crosby, Dawson, Dickens and 16 more5 hr
Jun 2, 4:49 PM CDTMesoscale DiscussionSPCBowie, Lamar, Red River56 min
Jun 2, 5:50 PM CDTSevere Thunderstorm WatchSPCAnderson, Archer, Baylor, Bosque, Callahan, Camp and 48 more6 hr
Jun 2, 6:08 PM CDTMesoscale DiscussionSPCArmstrong, Briscoe, Carson, Childress, Collingsworth, Cottle and 23 more67 min

Nearby

Severe Thunderstorm Watches in Louisiana, 2004Severe Thunderstorm Watches in Texas, 2004Every severe thunderstorm watch in 2004

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.