Alert archive / Alabama / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 299, NWS Birmingham, AL

July 22, 2023Bullock County, Macon County, Montgomery County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jul 22, 2023, 5:17 PM CDT for Bullock County, Macon County, Montgomery County, Alabama. It was in force for 31 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
Jul 22, 2023, 5:17 PM CDT (22:17 UTC)
Expired
Jul 22, 2023, 5:48 PM CDT
In force
31 min
Issued by
NWS Birmingham, AL
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Bullock County, AL, Macon County, AL, Montgomery County, AL

The radar

The Maxwell AFB radar (KMXX), 34 km from the middle of the area, began a volume at 22:21 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, 10.3 hours before the alert went out and 180 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 2023-07-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 35 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 2023-07-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 46 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
35 J/kg
Mixed-layer CIN
-226 J/kg
Mixed-layer LCL
1135 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
46 m²/s²
0-3 km storm-relative helicity
141 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
Jul 21, 7:13 PM CDTSevere Thunderstorm WarningBMXChilton, Coosa28 min
Jul 21, 7:19 PM CDTSevere Thunderstorm WarningBMXCoosa, Elmore, Lee, Macon, Tallapoosa56 min
Jul 21, 7:25 PM CDTSpecial Weather StatementBMXHale35 min
Jul 21, 7:26 PM CDTSpecial Weather StatementBMXDallas49 min
Jul 21, 7:36 PM CDTSpecial Weather StatementBMXMontgomery24 min
Jul 21, 7:40 PM CDTSpecial Weather StatementBMXLee, Macon35 min
Jul 21, 7:49 PM CDTSevere Thunderstorm WarningBMXLowndes, Montgomery41 min
Jul 21, 7:57 PM CDTSevere Thunderstorm WarningBMXBullock, Lee, Macon, Russell63 min
Jul 21, 8:26 PM CDTSevere Thunderstorm WarningBMXBullock, Montgomery, Pike51 min
Jul 21, 8:29 PM CDTSevere Thunderstorm WarningBMXBarbour, Russell48 min
Jul 21, 9:02 PM CDTSevere Thunderstorm WarningBMXBarbour, Bullock, Pike17 min
Jul 22, 2:31 AM CDTSpecial Weather StatementBMXMarengo29 min
Jul 22, 4:20 AM CDTSpecial Weather StatementBMXChilton25 min
Jul 22, 4:48 AM CDTSpecial Weather StatementBMXChilton27 min
Jul 22, 5:51 AM CDTSpecial Weather StatementBMXBibb39 min
Jul 22, 6:33 AM CDTSpecial Weather StatementBMXChilton42 min
Jul 22, 7:13 AM CDTSpecial Weather StatementBMXBibb32 min
Jul 22, 7:16 AM CDTSpecial Weather StatementBMXSumter29 min
Jul 22, 8:57 AM CDTSpecial Weather StatementBMXRussell33 min
Jul 22, 4:34 PM CDTSpecial Weather StatementBMXMontgomery41 min
Jul 22, 5:00 PM CDTSpecial Weather StatementBMXBullock30 min
Jul 22, 5:16 PM CDTSpecial Weather StatementBMXMontgomery29 min
Jul 22, 5:40 PM CDTSpecial Weather StatementBMXMontgomery35 min
Jul 22, 5:59 PM CDTSpecial Weather StatementBMXMacon46 min
Jul 22, 6:19 PM CDTSpecial Weather StatementBMXMontgomery41 min
Jul 22, 6:29 PM CDTSevere Thunderstorm WarningBMXBullock, Elmore, Macon, Tallapoosa35 min

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.