Alert archive / Alabama / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 200, NWS Birmingham, AL

June 29, 1994Jackson County, Madison County, Marshall County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jun 29, 1994, 6:41 AM CDT for Jackson County, Madison County, Marshall County, Alabama. It was in force for 64 min.

The area

The counties it named.

The facts

Issued
Jun 29, 1994, 6:41 AM CDT (11:41 UTC)
Expired
Jun 29, 1994, 7:45 AM CDT
In force
64 min
Issued by
NWS Birmingham, AL
Area
Whole counties

Counties Jackson County, AL, Madison County, AL, Marshall County, AL

The nearest sounding before it

Athens Municipal, GA (KAHN), launched 00:00Z, 11.7 hours before the alert went out and 285 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 00:00Z on 1994-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2437 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 00:00Z on 1994-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 131 square meters per square second.193958Sfc1 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
2437 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
1111 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
131 m²/s²
0-3 km storm-relative helicity
151 m²/s²
Significant tornado parameter
1.2
Supercell composite
8.9

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
Jun 29, 7:08 AM CDTSevere Thunderstorm WarningBMXDeKalb67 min
Jun 29, 9:07 AM CDTSevere Thunderstorm WarningBMXColbert, Lauderdale68 min
Jun 29, 10:28 AM CDTSevere Thunderstorm WarningBMXLimestone62 min
Jun 29, 10:37 AM CDTSevere Thunderstorm WarningBMXMorgan68 min
Jun 29, 10:55 AM CDTSevere Thunderstorm WarningBMXJefferson58 min
Jun 29, 11:12 AM CDTSevere Thunderstorm WarningBMXMadison48 min
Jun 29, 11:12 AM CDTSevere Thunderstorm WarningBMXTalladega63 min
Jun 29, 11:21 AM CDTSevere Thunderstorm WarningBMXRandolph32 min

Nearby

Severe Thunderstorm Warnings in Alabama, 1994Every severe thunderstorm warning in 1994

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.