Alert archive / Alabama / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 441, NWS Birmingham, AL

August 28, 2023Tallapoosa County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Aug 28, 2023, 1:52 PM CDT for Tallapoosa County, Alabama. It was in force for 38 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
Aug 28, 2023, 1:52 PM CDT (18:52 UTC)
Expired
Aug 28, 2023, 2:30 PM CDT
In force
38 min
Issued by
NWS Birmingham, AL
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Tallapoosa County, AL

The radar

The Maxwell AFB radar (KMXX), 36 km from the middle of the area, began a volume at 18:55 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, 6.9 hours before the alert went out and 133 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 2023-08-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 966 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 2023-08-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 128 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
966 J/kg
Mixed-layer CIN
-69 J/kg
Mixed-layer LCL
627 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
128 m²/s²
0-3 km storm-relative helicity
125 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 28, 4:03 AM CDTHeat AdvisoryBMXAutauga, Barbour, Bullock, Dallas, Elmore, Lee and 6 more12 hr
Aug 28, 10:50 AM CDTSpecial Weather StatementBMXLowndes40 min
Aug 28, 11:03 AM CDTSpecial Weather StatementBMXJefferson42 min
Aug 28, 11:17 AM CDTSpecial Weather StatementBMXAutauga28 min
Aug 28, 11:46 AM CDTSpecial Weather StatementBMXCoosa29 min
Aug 28, 11:56 AM CDTSpecial Weather StatementBMXMacon34 min
Aug 28, 12:11 PM CDTSpecial Weather StatementBMXAutauga49 min
Aug 28, 12:32 PM CDTSpecial Weather StatementBMXMontgomery58 min
Aug 28, 12:35 PM CDTSpecial Weather StatementBMXCoosa55 min
Aug 28, 12:48 PM CDTSpecial Weather StatementBMXMontgomery57 min
Aug 28, 1:12 PM CDTSevere Thunderstorm WarningBMXBullock, Macon, Montgomery48 min
Aug 28, 1:32 PM CDTSpecial Weather StatementBMXMacon, Tallapoosa58 min
Aug 28, 1:45 PM CDTSpecial Weather StatementBMXBarbour60 min
Aug 28, 2:01 PM CDTSevere Thunderstorm WarningBMXElmore, Tallapoosa44 min
Aug 28, 2:07 PM CDTSevere Thunderstorm WarningBMXBarbour, Bullock38 min
Aug 28, 2:18 PM CDTAreal Flood AdvisoryBMXTallapoosa3 hr
Aug 28, 2:20 PM CDTAreal Flood AdvisoryBMXBarbour, Bullock, Pike3 hr
Aug 28, 2:22 PM CDTSpecial Weather StatementBMXShelby53 min
Aug 28, 2:27 PM CDTAreal Flood AdvisoryBMXShelby3 hr
Aug 28, 2:34 PM CDTSpecial Weather StatementBMXChambers41 min
Aug 28, 2:48 PM CDTSpecial Weather StatementBMXTalladega42 min
Aug 28, 2:57 PM CDTSpecial Weather StatementBMXLee48 min
Aug 28, 3:08 PM CDTSpecial Weather StatementBMXShelby52 min
Aug 28, 3:12 PM CDTAreal Flood AdvisoryBMXJefferson, Shelby, Tuscaloosa3 hr
Aug 28, 3:32 PM CDTSpecial Weather StatementBMXCalhoun43 min
Aug 28, 3:34 PM CDTAreal Flood AdvisoryBMXCalhoun, Etowah3 hr
Aug 28, 5:01 PM CDTAreal Flood AdvisoryBMXBibb3 hr
Aug 28, 5:01 PM CDTSpecial Weather StatementBMXBibb29 min
Aug 28, 5:36 PM CDTAreal Flood AdvisoryBMXBlount3 hr
Aug 28, 5:46 PM CDTAreal Flood AdvisoryBMXBibb, Perry3 hr
Aug 28, 6:11 PM CDTSpecial Weather StatementBMXMarengo34 min
Aug 28, 6:56 PM CDTAreal Flood AdvisoryBMXHale, Marengo, Perry3 hr

Nearby

Severe Thunderstorm Warnings in Alabama, 2023Every severe thunderstorm warning in 2023

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.