Alert archive / Alabama / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 101, NWS Huntsville, AL

June 14, 2023Franklin County, Alabama

NWS Huntsville, AL issued this severe thunderstorm warning at Jun 14, 2023, 11:57 AM CDT for Franklin County, Alabama. It was in force for 36 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
Jun 14, 2023, 11:57 AM CDT (16:57 UTC)
Expired
Jun 14, 2023, 12:33 PM CDT
In force
36 min
Issued by
NWS Huntsville, AL
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Franklin County, AL

The radar

The Columbus AFB radar (KGWX), 75 km from the middle of the area, began a volume at 17:00 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, 5.0 hours before the alert went out and 171 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 2023-06-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 228 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 2023-06-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -93 square meters per square second.19395878Sfc1 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
228 J/kg
Mixed-layer CIN
-82 J/kg
Mixed-layer LCL
786 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
-93 m²/s²
0-3 km storm-relative helicity
35 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 14, 9:10 AM CDTSpecial Weather StatementHUNColbert, Franklin50 min
Jun 14, 9:36 AM CDTSevere Thunderstorm WarningHUNColbert, Franklin, Lawrence24 min
Jun 14, 9:41 AM CDTSevere Thunderstorm WarningHUNFranklin49 min
Jun 14, 9:55 AM CDTSevere Thunderstorm WarningHUNColbert, Franklin, Lawrence50 min
Jun 14, 10:28 AM CDTSevere Thunderstorm Warning Considerable damage threatHUNFranklin, Lawrence34 min
Jun 14, 10:37 AM CDTSevere Thunderstorm WarningHUNLimestone, Madison, Marshall, Morgan38 min
Jun 14, 11:00 AM CDTSevere Thunderstorm WarningHUNCullman, DeKalb, Jackson, Marshall, Morgan25 min
Jun 14, 11:14 AM CDTSevere Thunderstorm WarningHUNCullman46 min
Jun 14, 11:56 AM CDTSevere Thunderstorm WarningHUNCullman20 min
Jun 14, 1:00 PM CDTSevere Thunderstorm Warning Considerable damage threatHUNCullman39 min
Jun 14, 5:32 PM CDTSpecial Weather StatementHUNLauderdale43 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.