Alert archive / Alabama / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 170, NWS Birmingham, AL

September 7, 2026Chilton County, Coosa County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Sep 7, 2026, 2:36 PM CDT for Chilton County, Coosa County, Alabama. It was in force for 24 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
Sep 7, 2026, 2:36 PM CDT (19:36 UTC)
Expired
Sep 7, 2026, 3:00 PM CDT
In force
24 min
Issued by
NWS Birmingham, AL
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Chilton County, AL, Coosa County, AL

The radar

The Birmingham radar (KBMX), 41 km from the middle of the area, began a volume at 19:39 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

Birmingham, AL (KBMX), launched 12:00Z, 7.6 hours before the alert went out and 42 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, Birmingham, AL at 12:00Z on 2026-09-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1123 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, Birmingham, AL at 12:00Z on 2026-09-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 32 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
1123 J/kg
Mixed-layer CIN
-116 J/kg
Mixed-layer LCL
1024 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
32 m²/s²
0-3 km storm-relative helicity
69 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
Sep 7, 1:33 PM CDTSpecial Weather StatementBMXChilton27 min
Sep 7, 1:50 PM CDTSpecial Weather StatementBMXHale25 min
Sep 7, 2:08 PM CDTSpecial Weather StatementBMXAutauga37 min
Sep 7, 2:30 PM CDTSpecial Weather StatementBMXChilton45 min
Sep 7, 2:39 PM CDTSpecial Weather StatementBMXDallas36 min
Sep 7, 2:46 PM CDTSpecial Weather StatementBMXPerry29 min
Sep 7, 3:03 PM CDTSpecial Weather StatementBMXElmore42 min
Sep 7, 3:15 PM CDTSpecial Weather StatementBMXCoosa45 min
Sep 7, 3:42 PM CDTSpecial Weather StatementBMXElmore63 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2026Every severe thunderstorm warning in 2026

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.