Alert archive / Mississippi / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 45, NWS Mobile, AL

May 12, 1992Perry County, Mississippi

NWS Mobile, AL issued this severe thunderstorm warning at May 12, 1992, 8:21 PM CDT for Perry County, Mississippi. It was in force for 27 min.

The area

The counties it named.

The facts

Issued
May 12, 1992, 8:21 PM CDT (01:21 UTC)
Expired
May 12, 1992, 8:48 PM CDT
In force
27 min
Issued by
NWS Mobile, AL
Area
Whole counties

County Perry County, MS

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 1.4 hours before the alert went out and 123 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, Slidell Radar S, LA at 00:00Z on 1992-05-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1417 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, Slidell Radar S, LA at 00:00Z on 1992-05-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 65 square meters per square second.193958Sfc1 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
1417 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
905 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
65 m²/s²
0-3 km storm-relative helicity
159 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMOB 130122
SVRMOB
MSC111-130215-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
821 PM CDT TUE MAY 12 1992
 
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  915 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS......
 
IN SOUTHEAST MISSISSIPPI
 
   ...NORTHERN PERRY COUNTY
 
AT 820 PM WEATHER SERVICE RADARS INDICATED A SEVERE THUNDERTORM 5 MILES
NORTH OF RUNNELSTOWN MOVING TOWARD THE EAST AT 20 MPH.
 
THIS THUNDERSTORM IS EXPECTED TO SKIRT ALONG THE JONES-PERRY COUNTY
LINE AND PASS JUST TO THE NORTH OF OR POSSIBLY OVER RICHTON.
 
LARGE HAIL IS LIKELY WITH THIS THUNDERSTORM.
 
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AXREAS WHERE WATER COVERS THE ROAD.

Nearby

Severe Thunderstorm Warnings in Mississippi, 1992Every severe thunderstorm warning in 1992

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.