Alert archive / Alabama / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 111, NWS Birmingham, AL

July 29, 1993Marengo County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jul 29, 1993, 6:12 PM CDT for Marengo County, Alabama. It was in force for 48 min.

The area

The counties it named.

The facts

Issued
Jul 29, 1993, 6:12 PM CDT (23:12 UTC)
Expired
Jul 29, 1993, 7:00 PM CDT
In force
48 min
Issued by
NWS Birmingham, AL
Area
Whole counties

County Marengo County, AL

The nearest sounding before it

Centreville/Bibb, AL (KCKL), launched 12:00Z, 11.2 hours before the alert went out and 91 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 1993-07-29Temperature 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 1993-07-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -27 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
2 kt
0-1 km storm-relative helicity
-27 m²/s²
0-3 km storm-relative helicity
-27 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.

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 29, 2:40 PM CDT, 3 hours 32 minutes before
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Special weather statement, Jul 29, 2:45 PM CDT, 3 hours 27 minutes before
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Special weather statement, Jul 29, 3:31 PM CDT, 2 hours 41 minutes before
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Special weather statement, Jul 29, 3:32 PM CDT, 2 hours 40 minutes before
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Special weather statement, Jul 29, 5:10 PM CDT, 1 hour 2 minutes before
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Special weather statement, Jul 29, 5:11 PM CDT, 1 hour 1 minute before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 28, 7:03 PM CDTSevere Thunderstorm WarningBMXLimestone, Morgan57 min
Jul 28, 7:36 PM CDTSevere Thunderstorm WarningBMXCullman54 min
Jul 28, 8:41 PM CDTSevere Thunderstorm WarningBMXChilton49 min
Jul 29, 3:07 PM CDTSevere Thunderstorm WarningBMXChilton53 min
Jul 29, 3:25 PM CDTSevere Thunderstorm WarningBMXBibb50 min
Jul 29, 4:35 PM CDTSevere Thunderstorm WarningBMXMarengo40 min
Jul 29, 5:32 PM CDTSevere Thunderstorm WarningBMXTuscaloosa43 min
Jul 29, 5:42 PM CDTSevere Thunderstorm WarningBMXGreene48 min
Jul 29, 5:55 PM CDTSevere Thunderstorm WarningBMXBibb, Hale35 min
Jul 29, 6:10 PM CDTSevere Thunderstorm WarningBMXHale35 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.