Alert archive / Alabama / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 53, NWS Mobile, AL

May 17, 1994Mobile County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at May 17, 1994, 5:00 AM CDT for Mobile County, Alabama. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
May 17, 1994, 5:00 AM CDT (10:00 UTC)
Expired
May 17, 1994, 6:00 AM CDT
In force
60 min
Issued by
NWS Mobile, AL
Area
Whole counties

County Mobile County, AL

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 10.0 hours before the alert went out and 152 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 1994-05-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1711 joules per kilogram.LCLEL10008507005003002001001 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 1994-05-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 square meters per square second.1939Sfc1 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
1711 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
932 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
36 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMOB 171001 RRA
SVRMOB
ALC097-MSC059-171100-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE MOBILE AL
500 AM CDT TUE MAY 17 1994
 
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING
EFFECTIVE UNTIL  600 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHWEST ALABAMA...SOUTHERN MOBILE COUNTY AND IN SOUTHEAST MISSISSIP
...SOUTHERN JACKSON COUNTY
 
AT 458 AM CDT MOBILE WEATHER RADAR SHOWED A SEVERE THUNDERSTORM LOCATED
JUST OF THE COAST OF JACKSON COUNTY MISSISSIPPI...OVER HORN AND PETIT
BOIS ISLANDS AND MOVING NORTHEAST AT 15 MPH. THIS STORM WILL BRING
STRONG GUSTY WINDS...HEAVY RAINS AND DANGEROUS LIGHTNING TO SOUTH
JACKSON AND MOBILE COUNTIES WITHIN THE HOUR.  ALL MARINE INTEREST AND
RESIDENTS OF COASTAL JACKSON AND MOBILE COUNTIES SHOULD SEEK PROTECTIVE
SHELTER IMMEDIATELY.
 
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 AREAS WHERE WATER COVERS THE ROAD.
"

Nearby

Severe Thunderstorm Warnings in Alabama, 1994Every severe thunderstorm warning in 1994

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.