Alert archive / Louisiana / Severe Thunderstorm Watches in 1997

Severe Thunderstorm Watch 41

January 27, 199745 parishes in Louisiana; Adams County, Wilkinson County, Mississippi; 17 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at Jan 27, 1997, 7:00 PM CST for 45 parishes in Louisiana; Adams County, Wilkinson County, Mississippi; 17 counties in Texas. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jan 27, 1997, 7:00 PM CST (01:00 UTC)
Expired
Jan 28, 1997, 1:00 AM CST
In force
6 hr
Issued by
the Storm Prediction Center
All 64 counties

Acadia Parish, LA, Allen Parish, LA, Assumption Parish, LA, Avoyelles Parish, LA, Beauregard Parish, LA, Bienville Parish, LA, Bossier Parish, LA, Caddo Parish, LA, Calcasieu Parish, LA, Caldwell Parish, LA, Cameron Parish, LA, Catahoula Parish, LA, Claiborne Parish, LA, Concordia Parish, LA, De Soto Parish, LA, East Baton Rouge Parish, LA, Evangeline Parish, LA, Franklin Parish, LA, Grant Parish, LA, Iberville Parish, LA, Jackson Parish, LA, Jefferson Davis Parish, LA, Lafayette Parish, LA, LaSalle Parish, LA, Lincoln Parish, LA, Morehouse Parish, LA, Natchitoches Parish, LA, Ouachita Parish, LA, Pointe Coupee Parish, LA, Rapides Parish, LA, Red River Parish, LA, Richland Parish, LA, Sabine Parish, LA, Saint Landry Parish, LA, Saint Martin Parish, LA, St. Mary Parish, LA, Tensas Parish, LA, Union Parish, LA, Vermilion Parish, LA, Vernon Parish, LA, Webster Parish, LA, West Baton Rouge Parish, LA, West Carroll Parish, LA, West Feliciana Parish, LA, Winn Parish, LA, Adams County, MS, Wilkinson County, MS, Angelina County, TX, Gregg County, TX, Hardin County, TX, Harrison County, TX, Jasper County, TX, Jefferson County, TX, Marion County, TX, Nacogdoches County, TX, Newton County, TX, Orange County, TX, Panola County, TX, Rusk County, TX, Sabine County, TX, San Augustine County, TX, Shelby County, TX, Tyler County, TX, Upshur County, TX

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jan 27, 7:14 PM CSTSevere Thunderstorm WarningJANCatahoula, Concordia46 min
Jan 27, 7:29 PM CSTSevere Thunderstorm WarningJANMorehouse46 min
Jan 27, 8:11 PM CSTSevere Thunderstorm WarningLCHJasper34 min
Jan 27, 8:26 PM CSTSevere Thunderstorm WarningLCHHardin49 min
Jan 27, 8:31 PM CSTFlash Flood WarningLCHHardin3 hr
Jan 27, 9:09 PM CSTSevere Thunderstorm WarningJANCatahoula51 min
Jan 27, 9:53 PM CSTSevere Thunderstorm WarningSHVAngelina37 min
Jan 27, 10:10 PM CSTSevere Thunderstorm WarningJANTensas50 min

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 1.0 hours before the alert went out and 177 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, Lake Charles Mun, LA at 00:00Z on 1997-01-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1472 joules per kilogram.LCLLFCEL10008507005003002001001 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, Lake Charles Mun, LA at 00:00Z on 1997-01-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 114 square meters per square second.193958Sfc1 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
1472 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
733 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
114 m²/s²
0-3 km storm-relative helicity
131 m²/s²
Significant tornado parameter
0.7
Supercell composite
5.0

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
Jan 28, 12:00 AM CSTSevere Thunderstorm WatchSPCAcadia, Allen, Ascension, Avoyelles, Cameron, Catahoula and 19 more6 hr

Nearby

Severe Thunderstorm Watches in Louisiana, 1997Severe Thunderstorm Watches in Texas, 1997Severe Thunderstorm Watches in Mississippi, 1997Every severe thunderstorm 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.