Alert archive / Louisiana / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 2, NWS New Orleans, LA

January 20, 1993Saint James Parish, Louisiana

NWS New Orleans, LA issued this severe thunderstorm warning at Jan 20, 1993, 5:51 PM CST for Saint James Parish, Louisiana. It was in force for 69 min.

The area

The counties it named.

The facts

Issued
Jan 20, 1993, 5:51 PM CST (23:51 UTC)
Expired
Jan 20, 1993, 7:00 PM CST
In force
69 min
Issued by
NWS New Orleans, LA
Area
Whole counties

County Saint James Parish, LA

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 11.9 hours before the alert went out and 108 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 12:00Z on 1993-01-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 21 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 12:00Z on 1993-01-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 392 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
21 J/kg
Mixed-layer CIN
-102 J/kg
Mixed-layer LCL
545 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
392 m²/s²
0-3 km storm-relative helicity
460 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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.

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 20, 9:07 AM CSTFlash Flood WarningLIXEast Baton Rouge, East Feliciana, West Baton Rouge3 hr
Jan 20, 9:07 AM CSTFlash Flood WarningLIXLivingston3 hr
Jan 20, 10:28 AM CSTFlash Flood WarningLIXSaint Landry3 hr
Jan 20, 10:55 AM CSTFlash Flood WarningLIXSaint Martin4 hr
Jan 20, 11:19 AM CSTFlash Flood WarningLIXPointe Coupee3 hr
Jan 20, 12:17 PM CSTFlash Flood WarningLIXLivingston3 hr
Jan 20, 12:17 PM CSTFlash Flood WarningLIXEast Baton Rouge, East Feliciana, Pointe Coupee, West Baton Rouge, West Feliciana3 hr
Jan 20, 12:17 PM CSTFlash Flood WarningLIXSaint Landry3 hr
Jan 20, 3:04 PM CSTFlash Flood WarningLIXEast Baton Rouge, East Feliciana, Iberville, Livingston, Saint Helena, West Baton Rouge3 hr
Jan 20, 3:04 PM CSTFlash Flood WarningLIXPointe Coupee, Saint Landry3 hr
Jan 20, 3:04 PM CSTFlash Flood WarningLIXWest Feliciana3 hr
Jan 20, 3:20 PM CSTFlash Flood WarningLIXTangipahoa, Washington4 hr
Jan 20, 3:20 PM CSTFlash Flood WarningLIXSaint Martin4 hr
Jan 20, 5:43 PM CSTFlash Flood WarningLIXSaint Tammany4 hr
Jan 20, 5:51 PM CSTSevere Thunderstorm WarningLIXSaint John the Baptist, Tangipahoa69 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 1993Every severe thunderstorm warning in 1993

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.