Alert archive / Mississippi / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 27, NWS Mobile, AL

April 12, 1986Lamar County, Pearl River County, Mississippi

NWS Mobile, AL issued this severe thunderstorm warning at Apr 12, 1986, 5:20 AM CST for Lamar County, Pearl River County, Mississippi. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Apr 12, 1986, 5:20 AM CST (11:20 UTC)
Expired
Apr 12, 1986, 6:20 AM CST
In force
60 min
Issued by
NWS Mobile, AL
Area
Whole counties

Counties Lamar County, MS, Pearl River County, MS

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 00:00Z, 11.3 hours before the alert went out and 156 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 00:00Z on 1986-04-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 00:00Z on 1986-04-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 21 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2271 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
21 m²/s²
0-3 km storm-relative helicity
75 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 Mobile, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 12, 3:15 AM CSTSevere Thunderstorm WarningMOBForrest, Lamar60 min
Apr 12, 6:05 AM CSTSevere Thunderstorm WarningMOBStone45 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 1986Every severe thunderstorm warning in 1986

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.