Alert archive / Alabama / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 80, NWS Mobile, AL

August 19, 1993Mobile County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Aug 19, 1993, 3:46 PM CDT for Mobile County, Alabama. It was in force for 59 min.

The area

The counties it named.

The facts

Issued
Aug 19, 1993, 3:46 PM CDT (20:46 UTC)
Expired
Aug 19, 1993, 4:45 PM CDT
In force
59 min
Issued by
NWS Mobile, AL
Area
Whole counties

County Mobile County, AL

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 8.8 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 12:00Z on 1993-08-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2276 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 1993-08-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -1 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
2276 J/kg
Mixed-layer CIN
-43 J/kg
Mixed-layer LCL
938 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
-1 m²/s²
0-3 km storm-relative helicity
29 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMOB 192050 RRA
SVRMOB
ALC097-192145-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
346 PM CDT THU AUG 19 1993
 
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  445 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHWEST ALABAMA
 
   ...MOBILE COUNTY
 
 
AT 345 PM CDT RADAR INDICATED A CLUSTER OF SEVERE THUNDERSTORMS OVER THE
SOUTHERN PORTIONS OF THE CITY OF MOBILE. THE STORMS WERE MOVING TO THE
SOUTHWEST AT 10 MPH.
 
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.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Aug 19, 2:39 PM CDT, 1 hour 7 minutes before
FLZ001>004-ALZ010-013>018-MSZ012>014-172130-
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE PENSACOLA FL
240 PM CDT THU AUG 19 1993

AT 230 PM CDT...RADAR INDICATED NUMEROUS VERY HEAVY THUNDERSTORMS
ACROSS NORTHWEST...ESPECIALLY ON THE COAST FROM PENSACOLA TO FT WALTON
BEACH...AND IN WASHINGTON AND HOLMES COUNTY.

REPORTS OF HAIL HAVE BEEN RECEIVED FROM THE NICEVILLE AREA OF OKALOOSA
COUNTY.

THESE THUNDERSTORMS ARE MOVING TOWARD THE SOUTH...INTO THE GULF...AT
THE PRESENT TIME.

GUSTY WINDS AND FREQUENT LIGHTNING CAN BE EXPECTED WITH THE STORMS.
Special weather statement, Aug 19, 3:43 PM CDT, 3 minutes before
FLZ001>004-ALZ010-013>018-MSZ012>014-172130-
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE PENSACOLA FL
340 PM CDT THU AUG 19 1993

A SEVERE THUNDERSTORM WARNING IS IN EFFECT UNTIL 4 PM CDT FOR BAY
COUNTY OF NORTHWEST FLORIDA...

AT 330 PM CDT...A STRONG THUNDERSTORM WAS LOCATED IN BAY COUNTY NEAR
LYNN HAVEN. THE STORM HAD WEAKENED SLIGHTLY DURING THE PAST HOUR.

ELSEWHERE...STRONG THUNDERSTORMS WERE SCATTERED OVER THE COAST FFROM
MOBILE AND SOUTHERN BALDWIN COUNTY ALABAMA...EAST ACROSS THE FLORIDA
PANHANDLE TO BAY COUNTY. SMALL HAIL...GUSTY WINDS...AND FREQUENT
LIGHTNING IS ASSOCIATED WITH THESE STORMS.

MOVEMENTS WERE SOUTHERLY AROUND 10 TO 15 MPH.
Special weather statement, Aug 19, 3:44 PM CDT, 2 minutes before
FLZ001>004-ALZ010-013>018-MSZ012>014-192130-
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE PENSACOLA FL
340 PM CDT THU AUG 19 1993

A SEVERE THUNDERSTORM WARNING IS IN EFFECT UNTIL 4 PM CDT FOR BAY
COUNTY OF NORTHWEST FLORIDA...

AT 330 PM CDT...A STRONG THUNDERSTORM WAS LOCATED IN BAY COUNTY NEAR
LYNN HAVEN. THE STORM HAD WEAKENED SLIGHTLY DURING THE PAST HOUR.

ELSEWHERE...STRONG THUNDERSTORMS WERE SCATTERED OVER THE CONAST FROM
MOBILE AND SOUTHERN BALDWIN COUNTY ALABAMA...EAST ACROSS THE FLORIDA
PANHANDLE TO BAY COUNTY. SMALL HAIL...GUSTY WINDS...AND FREQUENT
LIGHTNING IS ASSOCIATED WITH THESE STORMS.

MOVEMENTS WERE SOUTHERLY AROUND 10 TO 15 MPH.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 19, 3:07 PM CDTTornado WarningMOBBaldwin68 min

Nearby

Severe Thunderstorm Warnings in Alabama, 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.