Alert archive / Alabama / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 39, NWS Mobile, AL

June 12, 1993Montgomery County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jun 12, 1993, 3:13 PM CDT for Montgomery County, Alabama. It was in force for 62 min.

The area

The counties it named.

The facts

Issued
Jun 12, 1993, 3:13 PM CDT (20:13 UTC)
Expired
Jun 12, 1993, 4:15 PM CDT
In force
62 min
Issued by
NWS Mobile, AL
Area
Whole counties

County Montgomery County, AL

The nearest sounding before it

Centreville/Bibb, AL (KCKL), launched 12:00Z, 8.2 hours before the alert went out and 120 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, Centreville/Bibb, AL at 12:00Z on 1993-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 853 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, Centreville/Bibb, AL at 12:00Z on 1993-06-12The 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
853 J/kg
Mixed-layer CIN
-72 J/kg
Mixed-layer LCL
950 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
30 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 
WUUS1 KMGM 122013 RRA
SVRMGM
ALC101-122115-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MONTGOMERY AL
313 PM CDT SAT JUN 12 1993
 
THE NATIONAL WEATHER SERVICE IN MONTGOMERY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  415 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION......
 
IN SOUTH ALABAMA
 
   ...EASTERN MONTGOMERY COUNTY
 
WEATHER RADAR AT MONTGOMERY'S DANNELLY FIELD SHOWED A SEVERE
THUNDERSTORM OVER EAST MONTGOMERY COUNTY APPROXIMATELY 12 MILES DUE
EAST. THE THUNDERSTORM HAD INDICATIONS OF HAIL AND IS MOVING VERY SLOWLY
EAST.
 
 
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

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, Jun 12, 2:35 PM CDT, 38 minutes before
FLZ001>004-MSZ012>014-ALZ010-013>018-122025-
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE PENSACOLA FL
235 PM CDT SAT JUN 12 1993

ISOLATED THUNDERSTORMS WERE OCCURRING ALONG THE NORTHWEST FLORIDA
COAST. SEVERAL OF THE THUNDERSTORMS WERE PRODUCING VERY HEAVY RAIN.

IN ADDITION TO THE RAIN...SMALL HAIL IS POSSIBLE WITH THE LARGER...
STRONGER THUNDERSTORMS.

SHOULD STRONG THUNDERSTORMS DEVELOPE DURING THE AFTERNOON IN URBAN OR
METROPOLITAN AREAS...LOCALIZED FLOODING WILL LIKELY OCCUR DUE TO LITTLE
OR NO MOVEMENT OF THE STORMS.

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.