Alert archive / Alabama / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 45, NWS Mobile, AL

June 30, 1993Butler County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jun 30, 1993, 3:18 PM CDT for Butler County, Alabama. It was in force for 57 min.

The area

The counties it named.

The facts

Issued
Jun 30, 1993, 3:18 PM CDT (20:18 UTC)
Expired
Jun 30, 1993, 4:15 PM CDT
In force
57 min
Issued by
NWS Mobile, AL
Area
Whole counties

County Butler County, AL

The nearest sounding before it

Centreville/Bibb, AL (KCKL), launched 12:00Z, 8.3 hours before the alert went out and 137 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 1993-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1993-06-30The 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
0 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
1 m²/s²
0-3 km storm-relative helicity
73 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 KMGM 302020 RRA
SVRMGM
ALC013-302115-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MONTGOMERY AL
318 PM CDT WED JUN 30 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
 
   ...BUTLER COUNTY
 
WEATHER RADAR AT MONTGOMERY SHOWED A SEVERE THUNDERSTORM OVER PIGEON
CREEK 10 MILES SOUTHEAST OF FORT DEPOSIT. THE THUNDERSTORM WAS MOVING
SOUTHEAST AT 30 MILES AN HOUR.
 
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, Jun 30, 1:56 PM CDT, 1 hour 22 minutes before
FLZ001>004-301930-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PENSACOLA FL
145 PM CDT WED JUN 30 1993

VERY STRONG THUNDERSTORMS...IN SHORT LINES AND CLUSTERS...WERE OVER
NORTHWEST FLORIDA. THE STORMS STRETCHED FROM CRESTVIEW TO PANAMA CITY.

IN ADDITION TO THE HEAVY RAINFALL...SMALL HAIL...AND WIND GUSTS TO
NEAR 50 MPH IS POSSIBLE.

FLOODING OF URBAN AREAS IS LIKELY AS THE STORMS ARE SLOW MOVING.
MOTORISTS SHOULD AVOID LOW AREAS AND NOT CROSS FLOODED ROADS.

FREQUENT TO NEAR CONSTANT LIGHTNING CAN BE EXPECTED WITH THESE
THUNDERSTORMS. LIGHTNING SAFETY SHOULD BE THE RULE.
Special weather statement, Jun 30, 2:19 PM CDT, 59 minutes before
ALZ013-015-016-302015-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
218 PM CDT WED JUN 30 1993

AT 215 PM...WEATHER RADAR SHOWED A CLUSTER OF STRONG THUNDERSTORMS
MOVING THROUGH THE EASTERN SECTIONS OF CONECUH COUNTY.  THESE WERE
IN ASSOCIATION WITH AN AREA OF SHOWERS AND THUNDERSTORMS WHICH
EXTENDED FROM WEST CENTRAL ALABAMA SOUTHEASTWARD INTO NORTHWEST
FLORIDA.  THE THUNDERSTORMS WERE MOVING TO THE SOUTHEAST AT 15
MILES AN HOUR.

THESE STORMS CAN PRODUCE HEAVY RAINFALL AMAOUNTS IN A SHORT PERIOD
OF TIME IN ADDITION TO DANGEROUS LIGHTNING STRIKES...STRONG WIND
GUSTS AND EVEN SMALL HAIL.

THE GREATEST THREAT WITH THE SUMMERTIME THUNDERSTORM IS LIGHTNING.
WHEN A THUNDERSTORM THREATENS YOUR AREA...MOVE INDOORS IMMEDIATELY
OR SEEK SHELTER IN A CLOSED AUTOMOBILE.  STAY AWAY FROM PLUGGED IN
ELECTRICAL APPLIANCES AND WINDOWS UNTIL THE STORM HAS MOVED OUT OF
YOUR AREA.

ADDITIONAL THUNDERSTORMS MAY DEVELOP OR MOVE INTO SNOUTHWEST
ALABAMA THIS AFTERNOON.  FOR THE LATEST WEATHER INFORMATION...TUNE
TO NOAA WEATHER RADIO OR LOCAL RADIO AND TELEVISION.
Special weather statement, Jun 30, 3:10 PM CDT, 8 minutes before
ALZ013-015-016-302115-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
310 PM CDT WED JUN 30 1993

AT 305 PM...WEATHER RADAR SHOWED THUNDERSTORMS MOVING INTO NORTHERN
CLARKE COUNTY...NEAR THOMASVILLE. OTHER THUNDERSTORMS WERE EAST OF
BEATRICE ON THE COUNTY LINE AND IN EXTREME EASTERN ESCAMBIA COUNTY.
THE THUNDERSTORMS WERE MOVING TO THE SOUTH SOUTHEAST AT 15 MPH.

THE STORMS CAN PRODUCE VERY HEAVY RAINFALL AMOUNTS...FREQUENT
DANGEROUS LIGHTNING...STRONG WINDS AND HAIL.

THE GREATEST THREAT WITH THE SUMMERTIME THUNDERSTORM IS LIGHTNING.
WHEN A THUNDERSTORM THREATENS YOUR AREA...MOVE INDOORS IMMEDIATELY
OR SEEK SHELTER IN A CLOSED AUTOMOBILE.  STAY AWAY FROM PLUGGED IN
ELECTRIC\AL APPLIANCES AND WINDOWS UNTIL THE STORM HAS MOVED OUT OF
YOUR AREA.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 30, 3:00 PM CDTSevere Thunderstorm WarningMOBPike60 min
Jun 30, 3:45 PM CDTSevere Thunderstorm WarningMOBCoffee60 min
Jun 30, 4:46 PM CDTSevere Thunderstorm WarningMOBConecuh, Monroe42 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.