Alert archive / Alabama / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 2, NWS Birmingham, AL

February 15, 1993Bibb County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Feb 15, 1993, 8:36 PM CST for Bibb County, Alabama. It was in force for 24 min.

The area

The counties it named.

The facts

Issued
Feb 15, 1993, 8:36 PM CST (02:36 UTC)
Expired
Feb 15, 1993, 9:00 PM CST
In force
24 min
Issued by
NWS Birmingham, AL
Area
Whole counties

County Bibb County, AL

The nearest sounding before it

Centreville/Bibb, AL (KCKL), launched 00:00Z, 2.6 hours before the alert went out and 13 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 00:00Z on 1993-02-16Temperature 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 00:00Z on 1993-02-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 594 square meters per square second.1939587897117Sfc1 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
1276 m above ground
0-6 km bulk shear
77 kt
0-1 km storm-relative helicity
594 m²/s²
0-3 km storm-relative helicity
789 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 KBHM 160236
SVRBHM
ALC007-160300-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
836 PM CST MON FEB 15 1993
 
THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  900 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTH ALABAMA
 
   ...BIBB COUNTY
 
AT 830 PM CST NATIONAL WEATHER SERVICE RADAR SHOWED A SEVERE
THUNDERSTORM 10 MILES SOUTHWEST OF PONDVILLE IN SOUTHWEST BIBB COUNTY.
THE THUNDERSTORM WAS MOVING RAPIDLY TO THE NORTHEAST AT MORE THAN 60
MILES AN HOUR. WITH CURRENT SPEED AND DIRECTION THE STORM WILL MOVE INTO
THE CENTREVILLE AREA 845 PM.
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.

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, Feb 15, 3:12 PM CST, 5 hours 24 minutes before
ALZALL-FLZ001-002-160330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
310 PM CST MON FEB 15 1993

...SEVERE THUNDERSTORMS ARE POSSIBLE OVER ALABAMA AND NORTHWESTERN
   FLORIDA TONIGHT...

A STORM SYSTEM CONTINUES TO STRENGTHEN OVER THE SOUTHERN PLAINS THIS
AFTERNOON.  THE STORM HAS ALREADY BEGUN TO AFFECT ALABAMA IN THE FORM
OF STRENGTHENING SOUTHEASTERLY WINDS.  THE STRONG SOUTHERLY FLOW WAS
INCREASING THE FLOW OF WARM...MOIST AIR OFF THE GULF OF MEXICO SETTING
THE STAGE FOR THE DEVELOPMENT OF SEVERE THUNDERSTORMS OVER ALABAMA
AND NORTHWEST FLORIDA LATER THIS EVENING AND EARLY TUESDAY MORNING.

A LINE OF STRONG THUNDERSTORMS DEVELOPED OVER NORTHEASTERN TEXAS THIS
MORNING IN ASSOCIATION WITH THE STORM SYSTEM.  THE LINE WAS ALREADY
PRESSING INTO NORTHWESTERN LOUISIANA THIS AFTERNOON AS LOW PRESSURE
DEEPENED OVER EASTERN TEXAS.
THE LOW WILL DRIVE NORTHEASTWARD TO THE MID MISSISSIPPI VALLEY LATE
TONIGHT PULLING A COLD FRONT SOUTHEASTWARD TOWARD ALABAMA AND NORTHWEST
FLORIDA.  STRONG TO SEVERE THUNDERSTORMS WILL CONTINUE TO DEVELOP ALONG
THE FRONT THIS EVENING OVER LOUSIANA AND MISSISSIPPI.

THE FRONT WILL APPROACH THE WESTERN BORDER OF ALABAMA AROUND MIDNIGHT SO
THE THREAT FOR SEVERE WEATHER WILL INCREASE OVER WESTERN ALABAMA LATE
TONIGHT AND CONTINUE OVER THE REMAINDER OF THE STATE THROUGH THE EARLY
MORNING HOURS TUESDAY.  THUNDERSTORMS ALONG THE FRONT WILL MOVE INTO THE
WESTERN FLORIDA PANHANDLE TOWARD DAYBREAK.

EMERGENCY MANAGEMENT AGENCIES AND EMERGENCY PERSONNEL SHOULD CONSIDER
ADDITIONAL STAFFING FOR TONIGHT AND EARLY TUESDAY MORNING IN PREPARATION
FOR THIS SEVERE WEATHER EVENT.

STAY TUNED TO NOAA WEATHER RADIO AND THE MEDIA FOR FURTHER STATEMENTS
CONCERNING THIS SITUATION.
Special weather statement, Feb 15, 5:43 PM CST, 2 hours 53 minutes before
ALZ004-006-008-009-0013-160030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
542 PM CST MON FEB 15 1993

A TORNADO WATCH CONTINUES FOR MUCH OF WESTERN ALABAMA UNTIL 11 PM CST.

AT 540 PM CST A LINE OF SEVERE THUNDERSTORMS WAS MOVING RAPIDLY THROUGH
MISSISSIPPI AND SHOULD REACH THE ALABAMA STATE LINE BETWEEN 6 AND 7 PM CST.
THE ALABAMA COUNTIES MOST LIKELY TO BE AFFECTED WILL BE MARION...LAMAR...
AND PICKENS.

THE LINE OF THUNDERSTORMS WAS MOVING SOUTHEAST AT 40 MPH WHILE THE
INDIVIDUAL THUNDERSTORMS WERE RACING NORTHEAST AT ALMOST 60 MPH.  PEOPLE
IN WESTERN ALABAMA SHOULD LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS
AS THESE STORMS MOVE INTO THE STATE DURING THE NEDXT 1 TO 2 HOURS.  WIND
DAMAGE HAS ALREADY BEEN REPORTED WITH THESE STORMS IN MISSISSIPPI AND
THERE IS ALSO THE POSSIBILITY OF TORNADOES.
Special weather statement, Feb 15, 6:28 PM CST, 2 hours 8 minutes before
ALZ010-011-012-014-017-018-160230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MONTGOMERY AL
630 PM CST MON FEB 15 1993

...TORNADO WATCH FOR WEST CENTRAL ALABAMA UNTIL 11 PM CST...

AT 615 PM CST A LINE OF SEVERE THUNDERSTORMS WAS MOVING THROUGH
CENTRAL MISSISSIPPI AT NEARLY 50 MPH.  RESIDENTS OF WEST CENTRAL
ALABAMA SHOULD LISTEN FOR LATER STATEMENTS OR WARNINGS AS THESE
THUNDERSTORMS MOVE QUICKLY INTO THE ALAMAMA.  SEVERAL REPORTS OF
STORM DAMAGE WERE REPORTED WITH THESE STORMS AS THEY MOVED THROUGH
CENTRAL MISSIPPI.
Special weather statement, Feb 15, 7:04 PM CST, 1 hour 32 minutes before
ALZ004>009-011-013-160145-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
703 PM CST MON FEB 15 1993

A TORNADO WATCH CONTINUES FOR MUCH OF WESTERN ALABAMA UNTIL 11 PM CST.

AT 700 PM CST RADAR SHOWED A LINE OF STRONG THUNDERSTORMS MOVING INTO
WESTERN ALABAMA. THE LEADING EDGE OF THE LINE EXTENDED FROM NEAR
BRILLIANT IN MARION COUNTY...INTO EAST CENTRAL MISSISSIPPI. THE
STRONGEST THUNDERSTORMS IN THE LINE WERE INDICATED IN EXTREME EAST
MISSISSIPPI...JUST WEST OF THE STATE LINE NEAR PICKENS COUNTY.

THE STORMS IN THE NORTH PART OF THE LINE WEAKENED AS THEY MOVED INTO
THE MORE STABLE AIRMASS IN ALABAMA.  HOWEVER...THE ATMOSPHERE IS
EXPECTED TO BECOME MORE UNSTABLE LATER TONIGHT...AS WARM MOIST AIR
FEEDS INTO THE STATE FROM THE SOUTH.

EVERYONE ACROSS THE STATE IS URGED TO STAY UPDATED ON THE WEATHER
THROUGH THE REST OF THE NIGHT...AS MORE WATCHES AND WARNINGS ARE

POSSIBLE.
Special weather statement, Feb 15, 8:00 PM CST, 36 minutes before
ALZ004>009-011-013-160300-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
800 PM CST MON FEB 15 1993

A TORNADO WATCH CONTINUES FOR MUCH OF WESTERN ALABAMA UNTIL 11 PM CST.

AT 755 PM CST RADAR CONTINUED TO SHOW AN AREA OF STRONG THUNDERSTORMS
MOVING INTO WESTERN ALABAMA. THE LEADING EDGE OF THE RAIN EXTENDED FROM
NEAR HUNTSVILLE...TO THE ALABAMA/MISSISSIPPI LINE AT NORTHERN SUMTER
COUNTY...AND INTO EASTERN MISSISSIPPI. THE STRONGEST STORMS IN ALABAMA
WERE NEAR AND JUST EAST OF ALICEVILLE IN SOUTHERN PICKENS COUNTY. THE
STORMS WERE RACING EAST NORTHEAST AROUND 60 MPH...AND WILL MOVE INTO
TUSCALOOSA AREA BEFORE 830 PM.

IN ADDITION TO THE STORMS...STRONG SURFACE WINDS OF OVER 30 MPH WERE
BUFFETTING THE STATE...AND DRAWING MORE MOISTURE INTO THE AREA FROM
THE SOUTH.

EVERYONE ACROSS THE STATE IS URGED TO STAY UPDATED ON THE WEATHER
THROUGH THE REST OF THE NIGHT...AS MORE WATCHES AND WARNINGS ARE
POSSIBLE.

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 16, 2:21 AM CSTSevere Thunderstorm WarningBMXPerry54 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.