Alert archive / Alabama / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 299, NWS Birmingham, AL

May 27, 1996Bibb County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at May 27, 1996, 4:56 PM CDT for Bibb County, Alabama. It was in force for 34 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
May 27, 1996, 4:56 PM CDT (21:56 UTC)
Expired
May 27, 1996, 5:30 PM CDT
In force
34 min
Issued by
NWS Birmingham, AL
Area
Whole counties

County Bibb County, AL

The radar

The Birmingham radar (KBMX), 38 km from the middle of the area, began a volume at 21:58 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 9.9 hours before the alert went out and 248 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, Peachtre/Fal Fld, GA at 12:00Z on 1996-05-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1170 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, Peachtre/Fal Fld, GA at 12:00Z on 1996-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -35 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
1170 J/kg
Mixed-layer CIN
-48 J/kg
Mixed-layer LCL
582 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
-35 m²/s²
0-3 km storm-relative helicity
-25 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
May 27, 3:08 PM CDTSevere Thunderstorm WarningBMXGreene, Hale, Marengo67 min
May 27, 4:06 PM CDTSevere Thunderstorm WarningBMXPerry39 min
May 27, 4:12 PM CDTSevere Thunderstorm WarningBMXMadison63 min
May 27, 4:41 PM CDTSevere Thunderstorm WarningBMXLimestone64 min
May 27, 4:41 PM CDTSevere Thunderstorm WarningBMXJackson64 min
May 27, 4:45 PM CDTTornado WarningBMXMadison60 min
May 27, 4:52 PM CDTSevere Thunderstorm WarningBMXMorgan68 min
May 27, 5:03 PM CDTTornado WarningBMXLimestone, Madison57 min

Nearby

Severe Thunderstorm Warnings in Alabama, 1996Every severe thunderstorm warning in 1996

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; radar from the NEXRAD Level II archive.