Alert archive / Alabama / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 21, NWS Birmingham, AL

March 10, 1992Winston County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Mar 10, 1992, 12:34 AM CST for Winston County, Alabama. It was in force for 56 min.

The area

The counties it named.

The facts

Issued
Mar 10, 1992, 12:34 AM CST (06:34 UTC)
Expired
Mar 10, 1992, 1:30 AM CST
In force
56 min
Issued by
NWS Birmingham, AL
Area
Whole counties

County Winston County, AL

The nearest sounding before it

Centreville/Bibb, AL (KCKL), launched 00:00Z, 6.6 hours before the alert went out and 140 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 1992-03-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 110 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 1992-03-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 172 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
110 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
1411 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
172 m²/s²
0-3 km storm-relative helicity
306 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBHM 100634
SVRBHM
ALC057-133-100730-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1234 AM CST TUE MAR 10 1992
 
THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  130 AM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTH ALABAMA
 
   ...FAYETTE COUNTY...WINSTON COUNTY
 
AT 1230 AM CST RADAR CONTINUED TO SHOW SEVERE THUNDERSTORMS RAPIDLY
MOVING EAST NORTHEAST AT ABOUT 50 MPH. THESE THUNDERSTORMS WILL LIKELY
REACH WINSTON AND FAYETTE COUNTIES BY 1250 AM CST. THESE STORMS MAY
PRODUCE LARGE HAIL AND DAMAGING WINDS. MOVE TO A SAFE PLACE ...AWAY FROM
WINDOWS...AND TOWARD THE INTERIOR PART OF BUILDING...ON THE LOWEST
FLOOR.
 
 
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 WtEATHER CONDITIONS.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 9, 9:57 PM CSTSevere Thunderstorm WarningBMXColbert, Lauderdale63 min
Mar 9, 10:06 PM CSTTornado WarningBMXColbert, Lauderdale69 min
Mar 9, 10:30 PM CSTSevere Thunderstorm WarningBMXLauderdale, Lawrence, Limestone60 min
Mar 9, 10:55 PM CSTTornado WarningBMXLimestone35 min
Mar 9, 11:49 PM CSTSevere Thunderstorm WarningBMXLamar, Marion56 min
Mar 10, 12:15 AM CSTSevere Thunderstorm WarningBMXPickens60 min
Mar 10, 12:19 AM CSTSevere Thunderstorm WarningBMXColbert, Franklin, Lawrence56 min
Mar 10, 12:34 AM CSTSevere Thunderstorm WarningBMXLauderdale, Lawrence, Limestone56 min
Mar 10, 12:34 AM CSTSevere Thunderstorm WarningBMXFayette56 min
Mar 10, 12:42 AM CSTSevere Thunderstorm WarningBMXMorgan63 min
Mar 10, 12:52 AM CSTSevere Thunderstorm WarningBMXTuscaloosa, Walker68 min
Mar 10, 1:02 AM CSTSevere Thunderstorm WarningBMXLimestone, Madison, Morgan58 min
Mar 10, 1:14 AM CSTFlash Flood WarningBMXColbert4 hr
Mar 10, 1:34 AM CSTSevere Thunderstorm WarningBMXCullman56 min
Mar 10, 1:34 AM CSTSevere Thunderstorm WarningBMXJefferson56 min
Mar 10, 1:43 AM CSTSevere Thunderstorm WarningBMXGreene, Hale62 min
Mar 10, 1:57 AM CSTSevere Thunderstorm WarningBMXMadison, Marshall, Morgan63 min
Mar 10, 3:46 AM CSTSevere Thunderstorm WarningBMXTalladega59 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.