Alert archive / Alabama / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 134, NWS Birmingham, AL

November 8, 1989Marengo County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Nov 8, 1989, 7:15 PM CST for Marengo County, Alabama. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Nov 8, 1989, 7:15 PM CST (01:15 UTC)
Expired
Nov 8, 1989, 8:15 PM CST
In force
60 min
Issued by
NWS Birmingham, AL
Area
Whole counties

County Marengo 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

Centreville/Bibb, AL (KCKL), launched 00:00Z, 1.3 hours before the alert went out and 91 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 1989-11-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 437 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 00:00Z on 1989-11-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -55 square meters per square second.1939587897Sfc1 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
437 J/kg
Mixed-layer CIN
-61 J/kg
Mixed-layer LCL
770 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
-55 m²/s²
0-3 km storm-relative helicity
-42 m²/s²
Significant tornado parameter
-0.1
Supercell composite
-0.9

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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, Nov 8, 2:21 PM CST, 4 hours 54 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MONTGOMERY AL
220 PM CST WED NOV 8 1989

...TORNADO WATCH CONTINUES FOR SOUTH COUNTIES UNTIL 6PM...
...FLASH FLOOD WARNINGS IN EFFECT FOR SOUTHEAST ALABAMA COUNTIES
ALONG THE FLORIDA BORDER UNTIL 445PM...

RADAR SHOWED WIDESPREAD THUNDERSTORMS AND RAIN OVER THE SOUTHEASTERN
THIRD OF ALABAMA AT 215 PM. SOME OF THE THUNDERSTORMS WERE PRODUCING
VERY HEAVY RAIN...ESPECIALLY IN A BAND FROM UNION SPRINGS TO TROY.

THE THUNDERSTORMS WERE MOVING EAST NORTHEAST AT AROUND 40 MPH AND WILL
BE PRODUCING STRONG GUSTY WINDS...EXTREMELY DANGEROUS LIGHTNING...AND
MAY CAUSE FLOODING OF HIGHWAYS...STREETS...AND SMALL STREAMS.

DEVAUGHN
Special weather statement, Nov 8, 2:46 PM CST, 4 hours 29 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
245 PM CST WED NOV 8 1989

AT 240 PM RADAR INDIACTED NO PRECIPITATIOPN OVER NORTH ALABAMA BUT
THUNDERSTORMS ALONG WITH HEAVY RAINFALL CONTINUE OVER MUCH OF SOUTH
ALABAMA.

DURING THE EARLY AFTERNOON HOURS STRONG THUNDERSTORMS HAVE DEVELOPED
OVER NORTHERN MISSISSIPPI ALONG A COLD FRONT. A SEVERE THUNDERSTORM
WATCH HAS ALREADY BEEN ISSUED FOR MUCH OF CENTRAL MISSISSIPPI AND MORE
WATCHES ARE LIKELY TO BE POSTED DURING THE AFTERNOON AND EVENING HOURS
AS THE FRONT MOVES SOUTHEAST. THE THUNDERSTORMS OVER MISSISSIPPI WERE
MOVING EAST AT 35 MPH AND COULD REACH THE WESTERN COUNTIES OF ALABAMA
BY 400 PM.

PERSONS IN ALABAMA SHOULD BE ON THE ALERT FOR SEVERE WEATHER LATER THIS
AFTERNOON AND EVENING AND LISTEN TO RADIO...TV...OR NOAA WEATHER RADIO
FOR LATER STATEMENTS...AND POSSIBLE WATCHES OR WARNINGS.
Special weather statement, Nov 8, 3:30 PM CST, 3 hours 45 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MONTGOMERY AL
330 PM CST WED NOV 8 1989

...TORNADO WATCH CONTINUES FOR SOUTH COUNTIES UNTIL 6PM...
...FLASH FLOOD WARNINGS IN EFFECT FOR SOUTHEAST ALABAMA COUNTIES
ALONG THE FLORIDA BORDER UNTIL 445PM...

RADAR SHOWED WIDESPREAD THUNDERSTORMS AND RAIN OVER THE SOUTHEASTERN
THIRD OF ALABAMA AT 330 PM. SOME OF THE THUNDERSTORMS WERE PRODUCING
VERY HEAVY RAIN.

THE THUNDERSTORMS WERE MOVING EAST NORTHEAST AT AROUND 40 MPH AND WILL
BE PRODUCING STRONG GUSTY WINDS...EXTREMELY DANGEROUS LIGHTNING...AND
MAY CAUSE FLOODING OF HIGHWAYS...STREETS...AND SMALL STREAMS.

NEW VERY STRONG THUNDERSTORMS ARE OCCURRING OVER PARTS OF MISSISSIPPI
AND OFF THE COAST OF FLORIDA.  PERSONS IN SOUTH ALABAMA SHOULD KEEP
ABREAST OF LATEST WEATHER CONDITIONS AND BULLETINS FOR THE POSSIBILITY
OF ADDITIONAL SEVERE WEATHER THIS AFTERNOON AND TONIGHT.
Special weather statement, Nov 8, 5:03 PM CST, 2 hours 12 minutes before
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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.