Alert archive / Alabama / Special Weather Statements in 2023

Special Weather Statement, NWS Birmingham, AL

July 29, 2023Coosa County, Alabama

NWS Birmingham, AL issued this special weather statement at Jul 29, 2023, 3:03 PM CDT for Coosa 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 outline as issued.

The facts

Issued: Jul 29, 2023, 3:03 PM CDT (20:03 UTC)
Expired: Jul 29, 2023, 3:30 PM CDT
In force: 27 min
Issued by: NWS Birmingham, AL
Hail: 0.00 in
Wind: 40

County Coosa County, AL

The radar

The Birmingham radar (KBMX), 47 km from the middle of the area, began a volume at 20:04 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, 8.1 hours before the alert went out and 48 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: 1335 J/kg
Mixed-layer CIN: -66 J/kg
Mixed-layer LCL: 1141 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: -33 m²/s²
0-3 km storm-relative helicity: -4 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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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 29, 2:38 PM CDT	Special Weather Statement	BMX	Coosa	37 min
Jul 29, 3:01 PM CDT	Special Weather Statement	BMX	Jefferson	29 min
Jul 29, 3:06 PM CDT	Special Weather Statement	BMX	Chilton	24 min
Jul 29, 3:18 PM CDT	Special Weather Statement	BMX	Coosa	42 min
Jul 29, 3:25 PM CDT	Severe Thunderstorm Warning	BMX	Coosa	20 min
Jul 29, 3:48 PM CDT	Special Weather Statement	BMX	Bibb	27 min
Jul 29, 3:52 PM CDT	Special Weather Statement	BMX	Shelby	38 min
Jul 29, 4:05 PM CDT	Special Weather Statement	BMX	Chilton	40 min
Jul 29, 4:17 PM CDT	Special Weather Statement	BMX	Tuscaloosa	28 min
Jul 29, 4:18 PM CDT	Special Weather Statement	BMX	Bibb	27 min
Jul 29, 4:23 PM CDT	Severe Thunderstorm Warning	BMX	Chilton	21 min
Jul 29, 4:46 PM CDT	Special Weather Statement	BMX	Russell	29 min
Jul 29, 4:51 PM CDT	Special Weather Statement	BMX	Bibb	24 min
Jul 29, 4:56 PM CDT	Special Weather Statement	BMX	Randolph	34 min
Jul 29, 5:15 PM CDT	Special Weather Statement	BMX	Russell	30 min
Jul 29, 5:29 PM CDT	Areal Flood Advisory	BMX	Russell	3 hr
Jul 29, 5:45 PM CDT	Special Weather Statement	BMX	Elmore	30 min
Jul 29, 5:47 PM CDT	Special Weather Statement	BMX	Russell	28 min
Jul 29, 6:02 PM CDT	Special Weather Statement	BMX	Lee	28 min
Jul 29, 6:11 PM CDT	Special Weather Statement	BMX	Walker	19 min
Jul 29, 6:17 PM CDT	Special Weather Statement	BMX	Calhoun	28 min
Jul 29, 6:39 PM CDT	Special Weather Statement	BMX	Russell	36 min

Nearby

Special Weather Statements in Alabama, 2023 Every special weather statement 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.