Alert archive / Alabama / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 2, NWS Birmingham, AL

February 3, 1990Shelby County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Feb 3, 1990, 7:23 PM CST for Shelby County, Alabama. It was in force for 67 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Feb 3, 1990, 7:23 PM CST (01:23 UTC)
Expired
Feb 3, 1990, 8:30 PM CST
In force
67 min
Issued by
NWS Birmingham, AL
Area
Whole counties

County Shelby County, AL

The radar

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

What was reported inside it

TimeReportWhereRemark
Feb 3, 8:05 PM CSTThunderstorm Wind 0Shelby, AL

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Centreville/Bibb, AL (KCKL), launched 00:00Z, 1.4 hours before the alert went out and 64 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 1990-02-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 297 joules per kilogram.LCLLFCEL10008507005003002001001 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, Centreville/Bibb, AL at 00:00Z on 1990-02-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 139 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
297 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
962 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
139 m²/s²
0-3 km storm-relative helicity
164 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KBHM 040124
SVRBHM
ALC117-040230-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
723 PM CST SAT FEB 3 1990
 
THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  830 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTH ALABAMA
 
   ...SHELBY COUNTY
 
A STRONG THUNDERSTORM WAS INDICATED BY RADAR JUST MOVING INTO WESTERN
SHELBY COUNTY AT 721 PM CST. THIS STORM HAS BEEN ACCOMPANIED BY
REPORTS OF HIGH WIND INCLUDING A REPORT OF WIND TO NEAR 50 MPH AT THE
TUSCALOOSA AIRPORT.
 
ON ITS PRESENT PATH...THE STORM WILL MOVE ACROSS SHELBY COUNTY DURING
THE NEXT HOUR OR SO...AFFECTING COMMUNITIES SUCH AS PELHAM AND THE OAK
MOUNTAIN AREA.
 
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, Feb 3, 4:47 PM CST, 2 hours 36 minutes before
ALZALL-032330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
545 PM CST SAT FEB 3 1990

...A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR MUCH OF NORTHERN AND
WESTERN ALABAMA AND WILL CONTINUE UNTIL 10 PM...

NATIONAL WEATHER SERVICE RADAR AT 545 PM CST SHOWED A LINE OF
THUNDERSTORMS IN EXTREME EASTERN MISSISSIPPI MOVING TO THE NORTHEAST
AT 25 MPH. THE LINE WILL BE MOVING INTO WEST CENTRAL AND NORTHWEST
ALABAMA BY 5 PM CST.

THE STRONGEST STORM WAS LOCATED ABOUT 40 MILES NORTH OF MERIDIAN
MISSISSIPPI...AND WILL BE MOVING INTO PICKENS COUNTY OF ALABAMA BY
5 PM CST.

THESE THUNDERSTORMS CONTAIN BRIEF HEAVY RAIN...DANGEROUS LIGHTNING...
AND STRONG GUSTY WINDS. PERSONS I]N WEST CENTRAL AND NORTH WEST ALABAMA
SHOULD BE PREPAIRED TO SEEK SHELTER AS THREATENING WEATHER APPROACHES.
Special weather statement, Feb 3, 4:48 PM CST, 2 hours 35 minutes before
ALZ010-011-012-014-017-018-040000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MONTGOMERY AL
445 PM CST SAT FEB 3 1990

...SEVERE THUNDERSTORM WATCH UNTIL 10 PM FOR AUTAUGA...LOWNDES...
DALLAS...WILCOX AND BUTLER COUNTIES...

AT 440 PM CST RADAR AT MONTGOMERY INDICATED SCATTERED SHOWERS OVER
SOUTHEAST ALABAMA FROM ANDALUSIA TO EUFAULA. SCATTERED SHOWERS AND
THUNDERSTORMS WERE OVER EAST CENTRAL MISSISSIPPI THROUGH NORTHWEST
ALABAMaA. MOVEMENT WAS NORTHEAST AT AROUND 30 MILES AN HOUR.

PERSONS IN SOUTH CENTRAL AND SOUTHEAST ALABAMA SHOULD REMAIN WEATHER
ALERT TONIGHT AND LISTEN NOAA WEATHER RADIO AND LOCAL NEWS MEDIA FOR
LATER STATEMENTS AND POSSIBLE WARNINGS.
Special weather statement, Feb 3, 4:53 PM CST, 2 hours 30 minutes before
ALZALL-032330-

SPECIAL WEATHER STATEMENT...COR
NATIONAL WEATHER SERVICE BIRMINGHAM AL
445 PM CST SAT FEB 3 1990

...A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR MUCH OF NORTHERN AND
WESTERN ALABAMA AND WILL CONTINUE UNTIL 10 PM...

NATIONAL WEATHER SERVICE RADAR AT 445 PM CST SHOWED A LINE OF
THUNDERSTORMS IN EXTREME EASTERN MISSISSIPPI MOVING TO THE NORTHEAST
AT 25 MPH. THE LINE WILL BE MOVING INTO WEST CENTRAL AND NORTHWEST
ALABAMA BY 5 PM CST.

THE STRONGEST STORM WAS LOCATED ABOUT 40 MILES NORTH OF MERIDIAN
MISSISSIPPI...AND WILL BE MOVING INTO PICKENS COUNTY OF ALABAMA BY
5 PM CST.

THESE THUNDERSTORMS CONTAIN BRIEF HEAVY RAIN...DANGEROUS LIGHTNING...
AND STRONG GUSTY WINDS.m PERSONS IN WEST CENTRAL AND NORTH WEST ALABAMA
SHOULD BE PREPAIRED TO SEEK SHELTER AS THREATENING WEATHER APPROACHES.
Special weather statement, Feb 3, 6:24 PM CST, 59 minutes before
ALZ010-011-012-014-017-018-040000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MONTGOMERY AL
625 PM CST SAT FEB 3 1990

...SEVERE THUNDERSTORM WATCH UNTIL 10 PM FOR AUTAUGA...LOWNDES...
DALLAS...WILCOX AND BUTLER COUNTIES...

AT 625 PM CST RADAR AT MONTGOMERY INDICATED SCATTERED SHOWERS OVER
SOUTH ALABAMA. THUNDERSTORMS WERE ENTERING WEST AND NORTHWEST ALABAMA.
THE SHOWERS AND THUNDERSTORMS WERE MOVING TOWARD THE NORTHEAST AT
AROUND 30 MILES AN HOUR.

THE THUNDERSTORMS WILL BE MOVING INTO SOUTH ALABAMA LATER THIS EVENING
AND TONIGHT.

PERSONS IN SOUTH CENTRAL AND SOUTHEAST ALABAMA SHOULD REMAIN WEATHER
ALERT TONIGHT AND LISTEN NOAA WEATHER RADIO AND LOCAL NEWS MEDIA FOR
LATER STAtTEMENTS AND POSSIBLE WARNINGS.

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 3, 6:22 PM CSTTornado WarningBMXTuscaloosa53 min
Feb 3, 6:59 PM CSTTornado WarningBMXJefferson46 min
Feb 3, 7:41 PM CSTTornado WarningBMXJefferson49 min
Feb 3, 8:07 PM CSTTornado WarningBMXSt. Clair68 min
Feb 3, 8:14 PM CSTSevere Thunderstorm WarningBMXTalladega61 min
Feb 3, 9:26 PM CSTTornado WarningBMXShelby34 min

Nearby

Severe Thunderstorm Warnings in Alabama, 1990Every severe thunderstorm warning in 1990

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.