Alert archive / Louisiana / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 16, NWS Shreveport, LA

February 3, 1990Madison Parish, Louisiana

NWS Shreveport, LA issued this severe thunderstorm warning at Feb 3, 1990, 1:14 PM CST for Madison Parish, Louisiana. It was in force for 61 min.

The area

The counties it named.

The facts

Issued
Feb 3, 1990, 1:14 PM CST (19:14 UTC)
Expired
Feb 3, 1990, 2:15 PM CST
In force
61 min
Issued by
NWS Shreveport, LA
Area
Whole counties

County Madison Parish, LA

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 7.2 hours before the alert went out and 109 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, Jackson, MS at 12:00Z on 1990-02-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 152 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, Jackson, MS at 12:00Z on 1990-02-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 218 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
152 J/kg
Mixed-layer CIN
-112 J/kg
Mixed-layer LCL
676 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
218 m²/s²
0-3 km storm-relative helicity
314 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.2

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 Shreveport, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 2, 6:31 PM CSTSevere Thunderstorm WarningSHVCaddo59 min
Feb 2, 7:55 PM CSTTornado WarningSHVMorehouse50 min
Feb 3, 1:46 AM CSTSevere Thunderstorm WarningSHVWebster59 min
Feb 3, 1:59 AM CSTTornado WarningSHVClaiborne, Webster46 min
Feb 3, 5:30 AM CSTFlash Flood WarningSHVWebster3 hr
Feb 3, 5:30 AM CSTFlash Flood WarningSHVBossier3 hr
Feb 3, 8:58 AM CSTSevere Thunderstorm WarningSHVClaiborne62 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 1990Every severe thunderstorm warning in 1990

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.