Alert archive / Alabama / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 2, NWS Birmingham, AL

February 20, 1989Madison County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Feb 20, 1989, 11:20 PM CST for Madison County, Alabama. It was in force for 55 min.

The area

The counties it named.

The facts

Issued
Feb 20, 1989, 11:20 PM CST (05:20 UTC)
Expired
Feb 21, 1989, 12:15 AM CST
In force
55 min
Issued by
NWS Birmingham, AL
Area
Whole counties

County Madison County, AL

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 5.3 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, Nashville Metro, TN at 00:00Z on 1989-02-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 00:00Z on 1989-02-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 196 square meters per square second.19395878Sfc1 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
662 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
196 m²/s²
0-3 km storm-relative helicity
199 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 KHSV 210519
SVRHSV
ALC089-210615-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HUNTSVILLE AL
1120 PM CST MON FEB 20 1989
 
THE NATIONAL WEATHER SERVICE IN HUNTSVILLE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1215 AM CST
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN NORTH ALABAMA
          ...MADISON
 
AT 11:15 PM CST... RADAR INDICATED POSSIBLE SEVERE THUNDERSTORMS IN
SOUTHWEST MADISON COUNTY NEAR MADISON MOVING NORTHEAST AT 45 MPH.
 
THE THUNDERSTORMS WILL PROBABLY CAUSE 50 TO 60 MPH WINDS WITH HAIL
AND VERY DANGEROUS LIGHTNING.
 
THESE THUNDERSTORMS CAUSED DAMAGE IN LAWRENCE COUNTY EARLIER WITH
SEVERAL REPORTS OF TREES BLOWN DOWN.  THERE WERE NO CONFIRMED
TORNADO SIGHTINGS IN LAWRENCE COUNTY.
 
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 20, 8:58 PM CST, 2 hours 22 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
857 PM CST MON FEB 20 1989

    ...THUNDERSTORMS MOVING INTO WEST AND NORTHWEST ALABAMA...

AT 845 PM THIS EVENING RADAR INDICATED A BAND OF SHOWERS AND THUNDER
STORMS STRETCHING FROM MIDDLE TENNESSEE ACROSS THE NORTHWEST CORNER
OF ALABAMA AND INTO NORTH CENTRAL MISSISSIPPI.

THE STRONGEST OF THESE STORMS WILL BE ENTERING NORTHERN LAMAR AND
MARION COUNTIES AROUND 915 PM. THIS STORM HAS A HISTORY OF TORNADIC
ACITIVITY AND LARGE HAIL. THERE IS A GOOD POSSIBILITY THAT WARNINGS
WILL HAVE TO BE ISSUED AS THIS STORM ENTERS ALABAMA.

PERSONS SHOULD REMAIN INFORMED ON THE LATEST WEATHER INFORMATION
AND BE PREPARED TO TAKE SHELTER IMMEDIATELY.

OTHER STRONG THUNDERSTORMS WERE LOCATED OVER MISSISSIPPI AND WILL
CONTINUE MOVING INTO ALABAMA DURING THE NIGHT.
Special weather statement, Feb 20, 11:02 PM CST, 18 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MONTGOMERY AL
11 PM CST MON FEB 20 1989

TORNADO WATCHES ARE IN EFFECT FOR CENTRAL AND SOUTH ALABAMA UNTIL 4AM
CST TUESDAY MORNING...
WEATHER RADAR AT MONTGOMERY SHOWED NUMEROUS SHOWERS AND A FEW THUNDER
STORMS OVER CENTRAL AND SOUTH ALABAMA AT 11PM CST. THE SHOWERS AND
THUNDERSTORMS WERE MOVING TOWARD THE NORTHEAST AT ABOUT 35 MPH.

A LINE OF STRONG THUNDERSTORMS WAS OVER NORTHWEST AND WEST CENTRAL
ALABAMA AND THIS LINE WAS MOVING EASTWARD AT 20 MPH. THIS LINE IS
SEVERAL HOURS AWAY FROM THE MORE SOUTHERN PORTIONS OF THE STATE...
HOWEVER PERSONS IN SOUTH ALABAMA SHOULD REMAIN ON THE ALERT AS
THE POTENTIAL FOR SEVERE WEATHER AND POSSIBLE TORNADOES REMAINS
HIGH.

STAY TUNED TO LOCAL MEDIA STATIONS OR NOAA WEATHER RADIO FOR
LATER INFORMATION.
PP

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 20, 9:17 PM CSTTornado WarningBMXLamar, Marion58 min
Feb 20, 9:48 PM CSTTornado WarningBMXFayette57 min
Feb 20, 10:14 PM CSTTornado WarningBMXWalker, Winston61 min
Feb 20, 10:16 PM CSTTornado WarningBMXLawrence44 min
Feb 20, 10:30 PM CSTFlash Flood WarningBMXLauderdale3 hr
Feb 20, 10:36 PM CSTSevere Thunderstorm WarningBMXPickens69 min
Feb 20, 11:03 PM CSTTornado WarningBMXPickens57 min
Feb 20, 11:23 PM CSTTornado WarningBMXGreene, Tuscaloosa67 min
Feb 20, 11:39 PM CSTTornado WarningBMXCullman66 min
Feb 20, 11:58 PM CSTTornado WarningBMXJefferson62 min
Feb 21, 1:00 AM CSTFlash Flood WarningBMXLimestone, Madison3 hr

Nearby

Severe Thunderstorm Warnings in Alabama, 1989Every severe thunderstorm warning in 1989

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.