Alert archive / Alabama / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 140, NWS Birmingham, AL

June 7, 1994Chilton County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jun 7, 1994, 7:09 PM CDT for Chilton County, Alabama. It was in force for 51 min.

The area

The counties it named.

The facts

Issued
Jun 7, 1994, 7:09 PM CDT (00:09 UTC)
Expired
Jun 7, 1994, 8:00 PM CDT
In force
51 min
Issued by
NWS Birmingham, AL
Area
Whole counties

County Chilton County, AL

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 0.2 hours before the alert went out and 320 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 00:00Z on 1994-06-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2017 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 1994-06-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -2 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
2017 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
1379 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
-2 m²/s²
0-3 km storm-relative helicity
51 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

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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 7, 7:06 PM CDTSevere Thunderstorm WarningBMXShelby39 min
Jun 7, 7:16 PM CDTSevere Thunderstorm WarningBMXClay44 min
Jun 8, 2:48 PM CDTSevere Thunderstorm WarningBMXColbert, Lauderdale57 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.