Alert archive / Alabama / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 66, NWS Birmingham, AL

July 8, 1993DeKalb County, Jackson County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jul 8, 1993, 3:41 PM CDT for DeKalb County, Jackson County, Alabama. It was in force for 64 min.

The area

The counties it named.

The facts

Issued
Jul 8, 1993, 3:41 PM CDT (20:41 UTC)
Expired
Jul 8, 1993, 4:45 PM CDT
In force
64 min
Issued by
NWS Birmingham, AL
Area
Whole counties

Counties DeKalb County, AL, Jackson County, AL

The nearest sounding before it

Athens Municipal, GA (KAHN), launched 12:00Z, 8.7 hours before the alert went out and 250 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, Athens Municipal, GA at 12:00Z on 1993-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 658 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, Athens Municipal, GA at 12:00Z on 1993-07-08The 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
658 J/kg
Mixed-layer CIN
-134 J/kg
Mixed-layer LCL
1392 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
17 m²/s²
0-3 km storm-relative helicity
19 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, 4:51 PM CDTSevere Thunderstorm WarningBMXChilton54 min
Jul 8, 5:05 PM CDTSevere Thunderstorm WarningBMXJefferson40 min
Jul 8, 5:45 PM CDTSevere Thunderstorm WarningBMXBibb, Jefferson, Tuscaloosa45 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.