Alert archive / Louisiana / Tornado Watches in 1997

Tornado Watch 426

June 13, 199725 parishes in Louisiana; Sabine County, Texas

The Storm Prediction Center issued this tornado watch at Jun 13, 1997, 8:15 PM CDT for 25 parishes in Louisiana; Sabine County, Texas. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jun 13, 1997, 8:15 PM CDT (01:15 UTC)
Expired
Jun 14, 1997, 2:00 AM CDT
In force
6 hr
Issued by
the Storm Prediction Center
All 26 counties

Avoyelles Parish, LA, Bienville Parish, LA, Bossier Parish, LA, Caddo Parish, LA, Caldwell Parish, LA, Catahoula Parish, LA, Claiborne Parish, LA, Concordia Parish, LA, De Soto Parish, LA, Franklin Parish, LA, Grant Parish, LA, Jackson Parish, LA, LaSalle Parish, LA, Lincoln Parish, LA, Morehouse Parish, LA, Natchitoches Parish, LA, Ouachita Parish, LA, Rapides Parish, LA, Red River Parish, LA, Richland Parish, LA, Sabine Parish, LA, Union Parish, LA, Vernon Parish, LA, Webster Parish, LA, Winn Parish, LA, Sabine County, TX

The radar

The Shreveport radar (KSHV), 127 km from the middle of the area, began a volume at 01:15 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

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

IssuedProductOfficeCountiesLasted
Jun 13, 8:43 PM CDTSevere Thunderstorm WarningSHVBossier, Caddo62 min
Jun 13, 9:16 PM CDTSevere Thunderstorm WarningSHVDe Soto59 min
Jun 13, 9:20 PM CDTSevere Thunderstorm WarningSHVBienville55 min
Jun 13, 9:41 PM CDTSevere Thunderstorm WarningSHVJackson64 min
Jun 13, 9:56 PM CDTSevere Thunderstorm WarningSHVWinn64 min

The nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 1.3 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 1997-06-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3531 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 1997-06-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 9 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
3531 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
1065 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
9 m²/s²
0-3 km storm-relative helicity
39 m²/s²
Significant tornado parameter
0.5
Supercell composite
2.9

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 13, 9:30 PM CDTSevere Thunderstorm WatchSPCDe Soto6 hr
Jun 13, 7:45 PM CDTTornado WatchSPCCass6 hr
Jun 14, 2:45 PM CDTSevere Thunderstorm WatchSPCAndrews, Bailey, Borden, Briscoe, Castro, Childress and 37 more5 hr
Jun 14, 3:15 PM CDTSevere Thunderstorm WatchSPCArmstrong, Carson, Collingsworth, Dallam, Deaf Smith, Donley and 13 more6 hr

Nearby

Tornado Watches in Louisiana, 1997Tornado Watches in Texas, 1997Every tornado watch in 1997

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.