Alert archive / Mississippi / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 12, NWS Mobile, AL

March 12, 1986George County, Mississippi

NWS Mobile, AL issued this severe thunderstorm warning at Mar 12, 1986, 6:35 PM CST for George County, Mississippi. It was in force for 40 min.

The area

The counties it named.

The facts

Issued
Mar 12, 1986, 6:35 PM CST (00:35 UTC)
Expired
Mar 12, 1986, 7:15 PM CST
In force
40 min
Issued by
NWS Mobile, AL
Area
Whole counties

County George 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

Boothville, LA (KBVE), launched 00:00Z, 0.6 hours before the alert went out and 185 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, Boothville, LA at 00:00Z on 1986-03-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1923 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, Boothville, LA at 00:00Z on 1986-03-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 195 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
1923 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
495 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
195 m²/s²
0-3 km storm-relative helicity
232 m²/s²
Significant tornado parameter
2.6
Supercell composite
10.4

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KMOB 130034 RRA
SVRMOB
MSC039-130115-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
635 PM CST WED MAR 12 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 715 PM CST FOR PEOPLE IN THE FOLLOWING
COUNTY OF

SOUTHEAST MISSISSIPPI...GEORGE

AT 630 PM CST THE MOBILE WEATHER RADAR SHOWED A SEVERE THUNDERSTORM
OVER THE EXTREME SOUTHWEST SECTION OF GEORGE COUNTY..ABOUT 20 MILES
SOUTHWEST OF LUCEDALE.  IT WAS MOVING TOWARD THE NORTHEAST AT 45 MPH.

THIS STORM IS ACCOMPANIED BY INTENSE LIGHTNING, STRONG GUSTY WINDS,
LARGE SIZE HAIL AND HEAVY RAINS.

 STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST WEATHER BULLJETINS.

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.