Alert archive / Alabama / Special Weather Statements in 2023

Special Weather Statement, NWS Birmingham, AL

August 4, 2023Dallas County, Alabama

NWS Birmingham, AL issued this special weather statement at Aug 4, 2023, 3:04 PM CDT for Dallas County, Alabama. It was in force for 41 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: Aug 4, 2023, 3:04 PM CDT (20:04 UTC)
Expired: Aug 4, 2023, 3:45 PM CDT
In force: 41 min
Issued by: NWS Birmingham, AL
Hail: 0.25 in
Wind: 50

County Dallas County, AL

The radar

The Birmingham radar (KBMX), 79 km from the middle of the area, began a volume at 20:05 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 79 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: 1191 J/kg
Mixed-layer CIN: -100 J/kg
Mixed-layer LCL: 1046 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 48 m²/s²
0-3 km storm-relative helicity: 91 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Aug 4, 3:04 PM CDT, 0 minutes earlier.

Area forecast discussion, Aug 4, 3:04 PM CDT, 0 minutes before

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Hazardous weather outlook, Aug 4, 5:43 AM CDT, 9 hours 21 minutes before

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In the hours before

Special weather statement, Aug 4, 12:44 PM CDT, 2 hours 20 minutes before

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Special weather statement, Aug 4, 1:12 PM CDT, 1 hour 52 minutes before

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Special weather statement, Aug 4, 1:16 PM CDT, 1 hour 48 minutes before

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Special weather statement, Aug 4, 2:38 PM CDT, 26 minutes before

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Local storm report, Aug 4, 2:47 PM CDT, 17 minutes before

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Special weather statement, Aug 4, 3:04 PM CDT, 0 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
Aug 4, 1:48 AM CDT	Heat Advisory	BMX	Lowndes, Pickens	18 hr
Aug 4, 3:54 AM CDT	Flash Flood Warning	BMX	Blount	5 hr
Aug 4, 4:07 AM CDT	Areal Flood Advisory	BMX	St. Clair	24 min
Aug 4, 4:31 AM CDT	Flash Flood Warning	BMX	St. Clair	4 hr
Aug 4, 5:05 AM CDT	Special Weather Statement	BMX	St. Clair	40 min
Aug 4, 5:07 AM CDT	Special Weather Statement	BMX	Marion, Winston	23 min
Aug 4, 5:18 AM CDT	Areal Flood Advisory	BMX	Talladega	3 hr
Aug 4, 5:34 AM CDT	Special Weather Statement	BMX	Fayette, Lamar, Marion, Walker, Winston	56 min
Aug 4, 6:11 AM CDT	Areal Flood Advisory	BMX	Blount, Jefferson, St. Clair, Shelby	4 hr
Aug 4, 11:51 AM CDT	Special Weather Statement	BMX	Fayette, Pickens, Tuscaloosa	54 min
Aug 4, 12:44 PM CDT	Special Weather Statement	BMX	Pickens	61 min
Aug 4, 1:12 PM CDT	Special Weather Statement	BMX	Bibb, Hale, Tuscaloosa	63 min
Aug 4, 1:16 PM CDT	Special Weather Statement	BMX	Greene, Sumter	59 min
Aug 4, 2:38 PM CDT	Special Weather Statement	BMX	Marengo, Perry	52 min
Aug 4, 3:07 PM CDT	Special Weather Statement	BMX	Dallas, Marengo	23 min
Aug 4, 3:15 PM CDT	Heat Advisory	BMX	Autauga, Barbour, Bullock, Elmore, Macon, Montgomery and 1 more	4 hr
Aug 4, 3:27 PM CDT	Special Weather Statement	BMX	Autauga, Montgomery	48 min
Aug 4, 3:36 PM CDT	Special Weather Statement	BMX	Dallas, Lowndes	39 min
Aug 4, 4:05 PM CDT	Special Weather Statement	BMX	Montgomery, Pike	40 min
Aug 4, 4:27 PM CDT	Severe Thunderstorm Warning	BMX	Montgomery, Pike	63 min
Aug 4, 5:07 PM CDT	Severe Thunderstorm Warning	BMX	Pike	26 min
Aug 4, 5:31 PM CDT	Special Weather Statement	BMX	Pike	29 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.