Alert archive / Alabama / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 69, NWS Birmingham, AL

July 8, 1993Bibb County, Jefferson County, Tuscaloosa County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jul 8, 1993, 5:45 PM CDT for Bibb County, Jefferson County, Tuscaloosa County, Alabama. It was in force for 45 min.

The area

The counties it named.

The facts

Issued
Jul 8, 1993, 5:45 PM CDT (22:45 UTC)
Expired
Jul 8, 1993, 6:30 PM CDT
In force
45 min
Issued by
NWS Birmingham, AL
Area
Whole counties

Counties Bibb County, AL, Jefferson County, AL, Tuscaloosa County, AL

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 10.8 hours before the alert went out and 291 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, Jackson, MS at 12:00Z on 1993-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1982 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, Jackson, MS at 12:00Z on 1993-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -31 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
1982 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
781 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
-31 m²/s²
0-3 km storm-relative helicity
-29 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 7, 7:28 PM CDTSevere Thunderstorm WarningBMXMarengo47 min
Jul 8, 3:41 PM CDTSevere Thunderstorm WarningBMXDeKalb, Jackson64 min
Jul 8, 4:51 PM CDTSevere Thunderstorm WarningBMXChilton54 min
Jul 8, 5:05 PM CDTSevere Thunderstorm WarningBMXJefferson40 min
Jul 8, 6:02 PM CDTSevere Thunderstorm WarningBMXCullman28 min
Jul 8, 6:11 PM CDTSevere Thunderstorm WarningBMXShelby34 min
Jul 8, 6:30 PM CDTSevere Thunderstorm WarningBMXBibb30 min
Jul 8, 6:53 PM CDTSevere Thunderstorm WarningBMXPerry52 min
Jul 8, 6:57 PM CDTSevere Thunderstorm WarningBMXBibb48 min

Nearby

Severe Thunderstorm Warnings in Alabama, 1993Every severe thunderstorm warning in 1993

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.