Alert archive / Alabama / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 274, NWS Birmingham, AL

July 2, 2023Tuscaloosa County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jul 2, 2023, 7:11 PM CDT for Tuscaloosa County, Alabama. It was in force for 27 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 2, 2023, 7:11 PM CDT (00:11 UTC)
Expired: Jul 2, 2023, 7:38 PM CDT
In force: 27 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Tuscaloosa County, AL

The radar

The Birmingham radar (KBMX), 71 km from the middle of the area, began a volume at 00:12 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 2, 12:14 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 0.2 hours before the alert went out and 281 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2393 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 1270 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: -3 m²/s²
0-3 km storm-relative helicity: 21 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.9

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Birmingham, AL wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 2, 3:08 PM CDT, 4 hours 3 minutes earlier.

Area forecast discussion, Jul 2, 3:08 PM CDT, 4 hours 3 minutes before

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Hazardous weather outlook, Jul 2, 12:03 PM CDT, 7 hours 8 minutes before

Hazardous Weather Outlook
National Weather Service Birmingham AL
1203 PM CDT Sun Jul 2 2023

ALZ011>015-017>050-032015-
Marion-Lamar-Fayette-Winston-Walker-Blount-Etowah-Calhoun-Cherokee-
Cleburne-Pickens-Tuscaloosa-Jefferson-Shelby-St. Clair-Talladega-
Clay-Randolph-Sumter-Greene-Hale-Perry-Bibb-Chilton-Coosa-Tallapoosa-
Chambers-Marengo-Dallas-Autauga-Lowndes-Elmore-Montgomery-Macon-
Bullock-Lee-Russell-Pike-Barbour-
1203 PM CDT Sun Jul 2 2023

This Hazardous Weather Outlook is for the counties served by the
National Weather Service office in Birmingham.

.DAY ONE...Outlook through Tonight.

Strong to severe thunderstorms are possible this afternoon and
evening through 10pm. The main concern will be damaging winds and
hail.

Hot and humid conditions are expected again today with heat indices
of 105 to near 110 possible.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Hot and humid conditions are forecast to continue through midweek.
Heat index values during the afternoon are expected to reach or
exceed 105 degrees.

Severe storms are possible across all of Central Alabama during the
afternoon and evening hours on Monday and Tuesday. Threats include
damaging winds up to 60 mph and quarter size hail.

.SPOTTER INFORMATION STATEMENT...

Activation of storm spotters and emergency management may be needed
today, Monday, and Tuesday.

In the hours before

Special weather statement, Jul 2, 6:20 PM CDT, 51 minutes before

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Local storm report, Jul 2, 6:39 PM CDT, 32 minutes before

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Special weather statement, Jul 2, 6:46 PM CDT, 25 minutes before

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Local storm report, Jul 2, 6:52 PM CDT, 19 minutes before

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Special weather statement, Jul 2, 6:56 PM CDT, 15 minutes before

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Special weather statement, Jul 2, 6:57 PM CDT, 14 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 2, 7:09 PM CDT	Areal Flood Advisory	BMX	Elmore	3 hr
Jul 2, 7:15 PM CDT	Special Weather Statement	BMX	Elmore	45 min
Jul 2, 8:18 PM CDT	Special Weather Statement	BMX	Bibb	42 min
Jul 2, 8:33 PM CDT	Severe Thunderstorm Warning	BMX	Bibb, Shelby	30 min
Jul 3, 2:56 PM CDT	Special Weather Statement	BMX	Winston	34 min
Jul 3, 3:25 PM CDT	Special Weather Statement	BMX	Marion	35 min
Jul 3, 3:26 PM CDT	Special Weather Statement	BMX	Etowah	49 min
Jul 3, 3:50 PM CDT	Severe Thunderstorm Warning	BMX	Cherokee, Etowah	55 min
Jul 3, 4:31 PM CDT	Special Weather Statement	BMX	Calhoun, St. Clair	59 min
Jul 3, 4:34 PM CDT	Special Weather Statement	BMX	Cleburne	26 min
Jul 3, 5:15 PM CDT	Areal Flood Advisory	BMX	Jefferson	3 hr
Jul 3, 5:50 PM CDT	Special Weather Statement	BMX	Shelby	40 min
Jul 3, 6:38 PM CDT	Areal Flood Advisory	BMX	Pickens	3 hr

Nearby

Severe Thunderstorm Warnings in Alabama, 2023 Every 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.