Alert archive / Mississippi / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 21, NWS Mobile, AL

March 30, 1993Greene County, Mississippi

NWS Mobile, AL issued this severe thunderstorm warning at Mar 30, 1993, 3:15 PM CST for Greene County, Mississippi. It was in force for 45 min.

The area

The counties it named.

The facts

Issued
Mar 30, 1993, 3:15 PM CST (21:15 UTC)
Expired
Mar 30, 1993, 4:00 PM CST
In force
45 min
Issued by
NWS Mobile, AL
Area
Whole counties

County Greene County, MS

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 9.3 hours before the alert went out and 148 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 12:00Z on 1993-03-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1840 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 12:00Z on 1993-03-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 115 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
1840 J/kg
Mixed-layer CIN
-30 J/kg
Mixed-layer LCL
554 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
115 m²/s²
0-3 km storm-relative helicity
234 m²/s²
Significant tornado parameter
0.8
Supercell composite
4.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMOB 302116
SVRMOB
MSC041-302200-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
315 PM CST TUE MAR 30 1993
 
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  400 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHEAST MISSISSIPPI
 
   ...SOUTHERN GREENE COUNTY
 
AT 310 PM WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM MOVING
OVER SOUTHERN GREENE COUNTY JUST SOUTHWEST OF VERNAL. THIS THUNDERSTORM
WAS MOVING TO THE NORTHEAST AT 30 MILES AN HOUR AND IS LIKELY PRODUCING
LARGE HAIL AND DAMAGING WINDS.
 
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMSP CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 30, 9:19 AM CSTSevere Thunderstorm WarningMOBGeorge41 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 1993Every severe thunderstorm warning in 1993

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.