Alert archive / Louisiana / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 37, NWS New Orleans, LA

February 10, 1998Lafourche Parish, Terrebonne Parish, Louisiana

NWS New Orleans, LA issued this severe thunderstorm warning at Feb 10, 1998, 8:12 PM CST for Lafourche Parish, Terrebonne Parish, Louisiana. It was in force for 63 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Feb 10, 1998, 8:12 PM CST (02:12 UTC)
Expired
Feb 10, 1998, 9:15 PM CST
In force
63 min
Issued by
NWS New Orleans, LA
Area
Whole counties

Counties Lafourche Parish, LA, Terrebonne Parish, LA

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Feb 10, 4:45 PM CSTTornado WatchSPC5 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 2.2 hours before the alert went out and 128 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, Slidell Radar S, LA at 00:00Z on 1998-02-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 625 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, Slidell Radar S, LA at 00:00Z on 1998-02-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 399 square meters per square second.1939587897Sfc1 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
625 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
680 m above ground
0-6 km bulk shear
73 kt
0-1 km storm-relative helicity
399 m²/s²
0-3 km storm-relative helicity
500 m²/s²
Significant tornado parameter
1.4
Supercell composite
6.4

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.

The office that day

Everything else NWS New Orleans, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 10, 6:00 PM CSTSevere Thunderstorm WarningLIXEast Baton Rouge, East Feliciana, Iberville, West Baton Rouge60 min
Feb 10, 6:00 PM CSTSevere Thunderstorm WarningLIXPointe Coupee, West Feliciana60 min
Feb 10, 6:56 PM CSTSevere Thunderstorm WarningLIXEast Baton Rouge, East Feliciana, Iberville, Livingston, Saint Helena, West Baton Rouge64 min
Feb 10, 6:56 PM CSTSevere Thunderstorm WarningLIXWest Feliciana64 min
Feb 10, 7:38 PM CSTSevere Thunderstorm WarningLIXAscension, Assumption62 min
Feb 10, 8:00 PM CSTSevere Thunderstorm WarningLIXIberville65 min
Feb 10, 8:00 PM CSTSevere Thunderstorm WarningLIXLivingston, Saint John the Baptist, Tangipahoa65 min
Feb 10, 8:00 PM CSTSevere Thunderstorm WarningLIXSaint James65 min
Feb 10, 9:02 PM CSTSevere Thunderstorm WarningLIXSaint Tammany, Washington63 min
Feb 10, 9:02 PM CSTSevere Thunderstorm WarningLIXJefferson, Lafourche, Orleans, Saint Charles63 min
Feb 10, 9:49 PM CSTSevere Thunderstorm WarningLIXPlaquemines, Saint Bernard66 min
Feb 10, 11:00 PM CSTSevere Thunderstorm WarningLIXPlaquemines60 min
Feb 10, 7:16 PM CSTSevere Thunderstorm WarningLIXAmite, Wilkinson64 min
Feb 10, 8:27 PM CSTSevere Thunderstorm WarningLIXPike, Walthall63 min
Feb 10, 9:33 PM CSTSevere Thunderstorm WarningLIXPearl River62 min
Feb 10, 9:49 PM CSTSevere Thunderstorm WarningLIXHancock66 min
Feb 10, 10:28 PM CSTSevere Thunderstorm WarningLIXHarrison, Jackson62 min
Feb 10, 11:26 PM CSTSevere Thunderstorm WarningLIXJackson59 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 1998Every severe thunderstorm warning in 1998

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.