Alert archive / Mississippi / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 10, NWS Mobile, AL

March 12, 1986Hancock County, Mississippi

NWS Mobile, AL issued this severe thunderstorm warning at Mar 12, 1986, 5:15 PM CST for Hancock County, Mississippi. It was in force for 45 min.

The area

The counties it named.

The facts

Issued
Mar 12, 1986, 5:15 PM CST (23:15 UTC)
Expired
Mar 12, 1986, 6:00 PM CST
In force
45 min
Issued by
NWS Mobile, AL
Area
Whole counties

County Hancock 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 12:00Z, 11.3 hours before the alert went out and 119 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 12:00Z on 1986-03-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 345 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 12:00Z on 1986-03-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 200 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
345 J/kg
Mixed-layer CIN
-314 J/kg
Mixed-layer LCL
995 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
200 m²/s²
0-3 km storm-relative helicity
189 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMOB 122314
SVRMOB
MSC045-130000-

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

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 600 PM CST FOR PEOPLE IN THE FOLLOWING
COUNTY OF

SOUTHEAST MISSISSIPPI...HANCOCK

AT 510 PM CST THE MOBILE WEATHER RADAR SHOWED A SEVERE THUNDERSTORM
10 MILES SOUTHWEST OF BAY ST LOUIS MISSISSIPPI 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 BULLETINS.

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 12, 5:35 PM CSTSevere Thunderstorm WarningMOBHarrison40 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.