Alert archive / Alabama / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 52, NWS Birmingham, AL

April 24, 1992Marion County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Apr 24, 1992, 7:39 AM CDT for Marion County, Alabama. It was in force for 66 min.

The area

The counties it named.

The facts

Issued
Apr 24, 1992, 7:39 AM CDT (12:39 UTC)
Expired
Apr 24, 1992, 8:45 AM CDT
In force
66 min
Issued by
NWS Birmingham, AL
Area
Whole counties

County Marion County, AL

The nearest sounding before it

Centreville/Bibb, AL (KCKL), launched 12:00Z, 0.7 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, Centreville/Bibb, AL at 12:00Z on 1992-04-24Temperature 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 1992-04-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 55 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
NaN m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
55 m²/s²
0-3 km storm-relative helicity
56 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 241238
SVRBHM
ALC093-133-241345-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
739 AM CDT FRI APR 24 1992
 
THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  845 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTH ALABAMA
 
   ...EASTERN MARION COUNTY...WINSTON COUNTY
 
AT 730 AM CDT A SEVERE THUDNERSTORMS WAS LOCATED NEAR HALEYVILLE ALONG
THE MARION-WINSTON COUNTY BORDER. HAIL WAS INDICATED WITH THIS STORM. IT
IS MOVING SOUTHEAST AROUND 35 MPH AND WILL AFFECT DOUBLE SPRINGS AND
NATURAL BRIDGE.
 
 
 
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, Apr 24, 6:24 AM CDT, 1 hour 15 minutes before
ALZ006-007-009>012-017-018-241300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
625 AM CDT FRI APR 24 1992

...STRONG THUNDERSTORMS OVER NORTHWEST ALABAMA...

AT 620 AM AREA WEATHER RADARS SHOWED A STRONG THUNDERSTORM OVER
FRANKLIN COUNTY MOVING SLOWLY SOUTHEAST.  IT WILL MOVE INTO MARION AND
WINSTON COUNTIES BETWEEN 630 AND 700 AM.  A FEW STORMS WERE ALSO
DETECTED OVER NORTHEAST MISSISSIPPI HEADING TOWARD LAMAR AND PICKENS
COUUNTIES.

RESIDENTS OF NORTHWEST ALABAMA MAY WANT TO ALLOW A LITTLE EXTRA TIME
TO DRIVE TO WORK OR SCHOOL THIS MORNING AS SLICK ROADS AND REDUCED
VISIBILITIES WILL MAKE DRIVING HAZARDOUS.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 24, 7:39 AM CDTSevere Thunderstorm WarningBMXWinston41 min
Apr 24, 6:33 PM CDTSevere Thunderstorm WarningBMXHale42 min

Nearby

Severe Thunderstorm Warnings in Alabama, 1992Every severe thunderstorm warning in 1992

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.