Alert archive / Alabama / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 113, NWS Birmingham, AL

July 5, 1992Shelby County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jul 5, 1992, 1:16 PM CDT for Shelby County, Alabama. It was in force for 44 min.

The area

The counties it named.

The facts

Issued
Jul 5, 1992, 1:16 PM CDT (18:16 UTC)
Expired
Jul 5, 1992, 2:00 PM CDT
In force
44 min
Issued by
NWS Birmingham, AL
Area
Whole counties

County Shelby County, AL

The nearest sounding before it

Centreville/Bibb, AL (KCKL), launched 12:00Z, 6.3 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 12:00Z on 1992-07-05Temperature 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 1992-07-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 17 square meters per square second.1939Sfc1 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
0 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
17 m²/s²
0-3 km storm-relative helicity
20 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBHM 051815
SVRBHM
ALC117-051900-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
116 PM CDT SUN JUL 5 1992
 
THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  200 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTH ALABAMA
 
   ...SHELBY COUNTY
 
AT 115PM WEATHER RADAR INDICATED A SEVERE THUNDERSTORM ABOUT 5 MILES
WEST OF PELHAM. THIS STORM WAS MOVING EAST AT 25 MILES PER HOUR.
ADDITIONAL STRONG STORMS WERE OVER WESTERN SHELBY COUNTY. MOST AREAS IN
SHELBY COUNTY WILL EXPERIENCE THESE STORMS IN THE NEXT HALF HOUR.
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

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, Jul 5, 11:51 AM CDT, 1 hour 25 minutes before
ALZ004>009-051835-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
1151 AM CDT SUN JUL 5 1992

...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 6 PM CDT THIS EVENING
                FOR WEST CENTRAL ALABAMA...

AT 1150 AM CDT RADAR INDICATED A BAND OF STRONG THUNERSTORMS EXTENDING
FROM NORTHWEST ALABAMA INTO FAYETTE AND PICKENS COUNTY...ADDITIONAL
THUNDERSTORMS WERE DEVELOPING OVER NORTHEAST MISSISSIPPI.  THESE STORMS
WERE MOVING EAST SOUTHEAST AT 30 MILES AN HOUR...AND SHOULD AFFECT
WINSTON...WALKER AND TUSCALOOSA COUNTY IN THE NEXT 30 MINUTES.

THE STRONGER THUNDERSTORMS CONTAIN HEAVY RAIN...GUSTY WIND...DANGEROUS
LIGHTNING AND POSSIBLY SOME HAIL.

RESIDENTS OF WEST CENTRAL ALABAMA NEED TO CONTINUE MONITORING WEATHER
CONDITIONS.  IF THREATING WEATHER APPEARS OR A WARNING IS ISSUED BE
PREPARED TO TAKE APPROPRIATE ACTION.
Special weather statement, Jul 5, 11:55 AM CDT, 1 hour 21 minutes before
ALZ004>009-051835-

SPECIAL WEATHER STATEMENT...CORRECTED FOR HEADING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1155 AM CDT SUN JUL 5 1992

...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 6 PM CDT THIS EVENING
                FOR WEST CENTRAL ALABAMA...

AT 1150 AM CDT RADAR INDICATED A BAND OF STRONG THUNERSTORMS EXTENDING
FROM NORTHWEST ALABAMA INTO FAYETTE AND PICKENS COUNTY...ADDITIONAL
THUNDERSTORMS WERE DEVELOPING OVER NORTHEAST MISSISSIPPI.  THESE STORMS
WERE MOVING EAST SOUTHEAST AT 30 MILES AN HOUR...AND SHOULD AFFECT
WINSTON...WALKER AND TUSCALOOSA COUNTY IN THE NEXT 30 MINUTES.

THE STRONGER THUNDERSTORMS CONTAIN HEAVY RAIN...GUSTY WIND...DANGEROUS
LIGHTNING AND POSSIBLY SOME HAIL.

RESIDENTS OF WEST CENTRAL ALABAMA NEED TO CONTINUE MONITORING WEATHER
CONDITIONS.  IF THREATING WEATHER APPEARS OR A WARNING IS ISSUED BE
PREPARED TO TAKE APPROPRIATE ACTION.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 5, 12:21 PM CDTSevere Thunderstorm WarningBMXWalker54 min
Jul 5, 12:30 PM CDTSevere Thunderstorm WarningBMXLawrence60 min
Jul 5, 12:42 PM CDTSevere Thunderstorm WarningBMXTuscaloosa33 min
Jul 5, 12:48 PM CDTSevere Thunderstorm WarningBMXJefferson42 min
Jul 5, 12:48 PM CDTSevere Thunderstorm WarningBMXCullman42 min
Jul 5, 12:57 PM CDTSevere Thunderstorm WarningBMXMorgan63 min
Jul 5, 12:57 PM CDTSevere Thunderstorm WarningBMXBibb33 min
Jul 5, 1:02 PM CDTTornado WarningBMXLauderdale58 min
Jul 5, 1:10 PM CDTSevere Thunderstorm WarningBMXMadison65 min
Jul 5, 1:20 PM CDTSevere Thunderstorm WarningBMXBlount40 min
Jul 5, 1:30 PM CDTSevere Thunderstorm WarningBMXJefferson30 min
Jul 5, 1:36 PM CDTSevere Thunderstorm WarningBMXJackson, Marshall69 min
Jul 5, 1:37 PM CDTSevere Thunderstorm WarningBMXChilton53 min
Jul 5, 1:45 PM CDTSevere Thunderstorm WarningBMXSt. Clair45 min
Jul 5, 1:54 PM CDTSevere Thunderstorm WarningBMXShelby36 min
Jul 5, 1:59 PM CDTSevere Thunderstorm WarningBMXEtowah46 min
Jul 5, 2:05 PM CDTSevere Thunderstorm WarningBMXTalladega40 min
Jul 5, 2:33 PM CDTSevere Thunderstorm WarningBMXClay42 min
Jul 5, 2:33 PM CDTSevere Thunderstorm WarningBMXCalhoun42 min
Jul 5, 2:48 PM CDTSevere Thunderstorm WarningBMXCherokee, Cleburne42 min
Jul 5, 3:03 PM CDTSevere Thunderstorm WarningBMXRandolph42 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.