Alert archive / Mississippi / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 35, NWS Jackson, MS

March 23, 1991Winston County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Mar 23, 1991, 1:09 AM CST for Winston County, Mississippi. It was in force for 66 min.

The area

The counties it named.

The facts

Issued
Mar 23, 1991, 1:09 AM CST (07:09 UTC)
Expired
Mar 23, 1991, 2:15 AM CST
In force
66 min
Issued by
NWS Jackson, MS
Area
Whole counties

County Winston County, MS

The nearest sounding before it

Centreville/Bibb, AL (KCKL), launched 00:00Z, 7.2 hours before the alert went out and 172 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, Centreville/Bibb, AL at 00:00Z on 1991-03-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1360 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, Centreville/Bibb, AL at 00:00Z on 1991-03-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 238 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
1360 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
852 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
238 m²/s²
0-3 km storm-relative helicity
324 m²/s²
Significant tornado parameter
2.3
Supercell composite
7.8

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 Jackson, MS issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 22, 6:23 PM CSTSevere Thunderstorm WarningJANCalhoun, Grenada67 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 1991Every severe thunderstorm warning in 1991

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.