Alert archive / Alabama / Special Weather Statements in 2021

Special Weather Statement, NWS Birmingham, AL

December 30, 2021Barbour County, Alabama

NWS Birmingham, AL issued this special weather statement at Dec 30, 2021, 2:58 PM CST for Barbour County, Alabama. It was in force for 32 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: Dec 30, 2021, 2:58 PM CST (20:58 UTC)
Expired: Dec 30, 2021, 3:30 PM CST
In force: 32 min
Issued by: NWS Birmingham, AL
Hail: 0.50 in
Wind: 40

County Barbour County, AL

The radar

The Ft Rucker radar (KEOX), 32 km from the middle of the area, began a volume at 21:00 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

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 9.0 hours before the alert went out and 179 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: 850 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 526 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 175 m²/s²
0-3 km storm-relative helicity: 186 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 3.9

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 Dec 30, 2:38 PM CST, 20 minutes earlier.

Area forecast discussion, Dec 30, 2:38 PM CST, 20 minutes before

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Hazardous weather outlook, Dec 30, 4:32 AM CST, 10 hours 26 minutes before

Hazardous Weather Outlook
National Weather Service Birmingham AL
432 AM CST Thu Dec 30 2021

ALZ011>015-017>050-311345-
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-
432 AM CST Thu Dec 30 2021

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 across much of Central
Alabama, with damaging winds and hail the main threats. Locally
heavy rainfall is also possible which may lead to flash flooding of
low lying, poor drainage, or urban areas.

Areas of fog in the northwest counties of Central Alabama may reduce
visibilities below 1 mile at times through 9 AM.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Strong to severe thunderstorms are possible across Central Alabama
Saturday afternoon into early Sunday morning. Damaging wind gusts,
hail, and a few tornadoes are the primary threats.

In addition to severe weather, locally heavy rainfall could occur
which may lead to flash flooding of low lying, poor drainage, or
urban areas. Non thunderstorm wind gusts up to 35 mph are also
possible on Saturday.

.SPOTTER INFORMATION STATEMENT...

Activation of storm spotters and emergency management may be needed
today, as well as on Saturday afternoon into early Sunday morning.

In the hours before

Special weather statement, Dec 30, 2:43 PM CST, 15 minutes before

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Local storm report, Dec 30, 2:45 PM CST, 13 minutes before

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Local storm report, Dec 30, 2:51 PM CST, 7 minutes before

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Local storm report, Dec 30, 2:53 PM CST, 5 minutes before

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Local storm report, Dec 30, 2:56 PM CST, 2 minutes before

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Special weather statement, Dec 30, 2:58 PM CST, 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
Dec 29, 6:02 PM CST	Special Weather Statement	BMX	Marion	43 min
Dec 29, 6:27 PM CST	Tornado Warning	BMX	Fayette, Lamar, Marion	34 min
Dec 29, 6:39 PM CST	Severe Thunderstorm Warning	BMX	Lamar	36 min
Dec 29, 7:00 PM CST	Severe Thunderstorm Warning	BMX	Fayette	34 min
Dec 29, 7:03 PM CST	Special Weather Statement	BMX	Winston	27 min
Dec 29, 7:13 PM CST	Severe Thunderstorm Warning	BMX	Walker, Winston	32 min
Dec 29, 7:17 PM CST	Severe Thunderstorm Warning	BMX	Greene, Pickens, Sumter	42 min
Dec 29, 7:34 PM CST	Special Weather Statement	BMX	Walker	41 min
Dec 29, 8:00 PM CST	Tornado Warning	BMX	Walker	18 min
Dec 29, 8:01 PM CST	Special Weather Statement	BMX	Hale	44 min
Dec 29, 8:04 PM CST	Severe Thunderstorm Warning	BMX	Blount	41 min
Dec 29, 8:16 PM CST	Severe Thunderstorm Warning	BMX	Jefferson	29 min
Dec 29, 8:27 PM CST	Severe Thunderstorm Warning	BMX	Etowah, St. Clair	63 min
Dec 29, 8:32 PM CST	Tornado Warning	BMX	Bibb, Hale, Tuscaloosa	43 min
Dec 29, 8:41 PM CST	Severe Thunderstorm Warning	BMX	Cherokee	22 min
Dec 29, 8:51 PM CST	Areal Flood Advisory	BMX	Blount, Calhoun, Etowah, Jefferson, St. Clair	114 min
Dec 29, 9:05 PM CST	Special Weather Statement	BMX	Cherokee	25 min
Dec 29, 9:11 PM CST	Special Weather Statement	BMX	Bibb	34 min
Dec 29, 9:14 PM CST	Tornado Warning	BMX	Calhoun	31 min
Dec 29, 9:19 PM CST	Severe Thunderstorm Warning	BMX	Cherokee	26 min
Dec 29, 9:25 PM CST	Tornado Warning	BMX	Bibb	20 min
Dec 29, 9:25 PM CST	Tornado Warning	BMX	Calhoun, Cherokee, Cleburne	35 min
Dec 29, 9:34 PM CST	Areal Flood Advisory	BMX	Bibb, Hale, Shelby, Tuscaloosa	116 min
Dec 29, 9:47 PM CST	Special Weather Statement	BMX	Bibb	43 min
Dec 29, 10:01 PM CST	Tornado Warning	BMX	Chilton, Shelby	32 min
Dec 29, 10:18 PM CST	Tornado Warning Tornado observed	BMX	Coosa, Talladega	24 min
Dec 29, 10:29 PM CST	Special Weather Statement	BMX	Pickens	31 min
Dec 29, 10:39 PM CST	Flash Flood Warning	BMX	Bibb, Chilton, Coosa, Shelby, Talladega	2 hr
Dec 29, 10:43 PM CST	Special Weather Statement	BMX	Clay	47 min
Dec 29, 10:50 PM CST	Flood Watch	BMX	Autauga, Bibb, Blount, Calhoun, Chambers, Cherokee and 18 more	16 hr
Dec 29, 11:08 PM CST	Special Weather Statement	BMX	Pickens	37 min
Dec 29, 11:41 PM CST	Special Weather Statement	BMX	Randolph	34 min
Dec 30, 12:09 AM CST	Special Weather Statement	BMX	Talladega	36 min
Dec 30, 12:12 AM CST	Special Weather Statement	BMX	Randolph	18 min
Dec 30, 1:17 AM CST	Special Weather Statement	BMX	Shelby	28 min
Dec 30, 3:24 AM CST	Special Weather Statement	BMX	Randolph	36 min
Dec 30, 3:27 AM CST	Special Weather Statement	BMX	Pickens	33 min
Dec 30, 4:19 AM CST	Areal Flood Advisory	BMX	Greene, Pickens, Sumter	3 hr
Dec 30, 4:35 AM CST	Special Weather Statement	BMX	Tuscaloosa	25 min
Dec 30, 4:53 AM CST	Special Weather Statement	BMX	Tuscaloosa	52 min
Dec 30, 5:28 AM CST	Special Weather Statement	BMX	Bibb	47 min
Dec 30, 5:33 AM CST	Areal Flood Advisory	BMX	Jefferson	5 hr
Dec 30, 5:36 AM CST	Special Weather Statement	BMX	Jefferson	24 min
Dec 30, 5:53 AM CST	Special Weather Statement	BMX	Tuscaloosa	67 min
Dec 30, 6:20 AM CST	Areal Flood Advisory	BMX	Calhoun, Cleburne	3 hr
Dec 30, 6:33 AM CST	Special Weather Statement	BMX	Walker	27 min
Dec 30, 6:44 AM CST	Special Weather Statement	BMX	Shelby	31 min
Dec 30, 7:05 AM CST	Areal Flood Advisory	BMX	Bibb, Shelby	3 hr
Dec 30, 7:28 AM CST	Areal Flood Advisory	BMX	Calhoun, Etowah, St. Clair, Talladega	5 hr
Dec 30, 7:32 AM CST	Special Weather Statement	BMX	Sumter	58 min
Dec 30, 7:35 AM CST	Special Weather Statement	BMX	Greene	25 min
Dec 30, 8:08 AM CST	Areal Flood Advisory	BMX	Greene, Sumter	3 hr
Dec 30, 8:11 AM CST	Special Weather Statement	BMX	Clay, Randolph	94 min
Dec 30, 8:27 AM CST	Flash Flood Warning	BMX	Bibb, Shelby, Talladega	3 hr
Dec 30, 9:01 AM CST	Areal Flood Advisory	BMX	Clay, Cleburne, Randolph, Talladega	3 hr
Dec 30, 9:27 AM CST	Special Weather Statement	BMX	Coosa	33 min
Dec 30, 9:30 AM CST	Special Weather Statement	BMX	Chilton	30 min
Dec 30, 9:41 AM CST	Severe Thunderstorm Warning	BMX	Clay, Coosa, Tallapoosa	25 min
Dec 30, 9:57 AM CST	Severe Thunderstorm Warning	BMX	Chilton, Coosa, Shelby	34 min
Dec 30, 10:12 AM CST	Special Weather Statement	BMX	Randolph	33 min
Dec 30, 10:24 AM CST	Special Weather Statement	BMX	Sumter	36 min
Dec 30, 10:38 AM CST	Special Weather Statement	BMX	Randolph	22 min
Dec 30, 10:49 AM CST	Severe Thunderstorm Warning	BMX	Greene, Hale, Sumter	41 min
Dec 30, 11:24 AM CST	Special Weather Statement	BMX	Perry	36 min
Dec 30, 11:27 AM CST	Special Weather Statement	BMX	Chambers	33 min
Dec 30, 11:37 AM CST	Special Weather Statement	BMX	Marengo	23 min
Dec 30, 12:27 PM CST	Special Weather Statement	BMX	Elmore	33 min
Dec 30, 12:29 PM CST	Special Weather Statement	BMX	Autauga	31 min
Dec 30, 1:02 PM CST	Special Weather Statement	BMX	Elmore	28 min
Dec 30, 1:08 PM CST	River Flood Warning	BMX	Chambers, Randolph, Tallapoosa	19 hr
Dec 30, 1:14 PM CST	Special Weather Statement	BMX	Lowndes	31 min
Dec 30, 1:36 PM CST	Severe Thunderstorm Warning	BMX	Elmore, Lee, Macon, Tallapoosa	39 min
Dec 30, 1:37 PM CST	Special Weather Statement	BMX	Chambers	23 min
Dec 30, 1:49 PM CST	Special Weather Statement	BMX	Lowndes, Montgomery	41 min
Dec 30, 1:51 PM CST	Severe Thunderstorm Warning	BMX	Pike	39 min
Dec 30, 1:57 PM CST	Severe Thunderstorm Warning	BMX	Lowndes, Montgomery	48 min
Dec 30, 2:01 PM CST	Severe Thunderstorm Warning	BMX	Chambers	14 min
Dec 30, 2:09 PM CST	Severe Thunderstorm Warning	BMX	Lee	36 min
Dec 30, 2:16 PM CST	Special Weather Statement	BMX	Macon	29 min
Dec 30, 2:16 PM CST	Severe Thunderstorm Warning Considerable damage threat	BMX	Barbour	32 min

Nearby

Special Weather Statements in Alabama, 2021 Every special weather statement in 2021

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.