Alert archive / Alabama / Areal Flood Advisories in 2021

Areal Flood Advisory 9, NWS Birmingham, AL

March 17, 2021Jefferson County, Tuscaloosa County, Alabama

NWS Birmingham, AL issued this areal flood advisory at Mar 17, 2021, 12:19 PM CDT for Jefferson County, Tuscaloosa County, Alabama. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Mar 17, 2021, 12:19 PM CDT (17:19 UTC)
Expired
Mar 17, 2021, 2:30 PM CDT
In force
2 hr
Issued by
NWS Birmingham, AL
Area
Storm-based polygon

Counties Jefferson County, AL, Tuscaloosa County, AL

The radar

The Birmingham radar (KBMX), 50 km from the middle of the area, began a volume at 17:20 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.

What forecasters said that day

The local office's own words before this areal flood advisory 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 areal flood advisory went out at Mar 16, 6:59 PM CDT, 17 hours 20 minutes earlier.

Area forecast discussion, Mar 16, 6:59 PM CDT, 17 hours 20 minutes before
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Hazardous weather outlook, Mar 16, 3:16 PM CDT, 21 hours 3 minutes before
Hazardous Weather Outlook
National Weather Service Birmingham AL
316 PM CDT Tue Mar 16 2021

ALZ011>015-017>050-172330-
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-
316 PM CDT Tue Mar 16 2021

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

.DAY ONE...Outlook through Tonight.

Isolated severe thunderstorms are possible through 9 PM this evening
across Central Alabama. Damaging winds and large hail are the main
threats. A brief tornado cannot be ruled out with isolated flash
flooding also possible.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Severe thunderstorms are likely Wednesday afternoon into early
Thursday morning across all of Central Alabama. Threats include
strong long track tornadoes, large hail up to tennis ball size, and
damaging winds up to 80 mph.

Winds may gust to near 35 mph outside of thunderstorms Wednesday
night. Locally heavy rainfall may cause minor flooding of poor
drainage areas Wednesday and Wednesday night.

Minor flooding is forecast along portions of the Black Warrior River
beginning Thursday night. Please see the latest flood statements for
details.

.SPOTTER INFORMATION STATEMENT...

Activation of storm spotters and emergency management may be needed
through this evening and again on Wednesday into the pre-dawn hours
on Thursday.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 16, 9:59 PM CDTSpecial Weather StatementBMXSumter46 min
Mar 16, 10:11 PM CDTSevere Thunderstorm WarningBMXSumter24 min
Mar 16, 10:38 PM CDTSpecial Weather StatementBMXHale37 min
Mar 17, 1:27 AM CDTDense Fog AdvisoryBMXAutauga, Barbour, Blount, Bullock, Calhoun, Chambers and 22 more6 hr
Mar 17, 11:18 AM CDTSpecial Weather StatementBMXJefferson27 min
Mar 17, 12:13 PM CDTTornado WarningBMXDallas47 min
Mar 17, 12:21 PM CDTSevere Thunderstorm WarningBMXFayette, Lamar, Marion25 min
Mar 17, 12:41 PM CDTTornado WarningBMXAutauga64 min
Mar 17, 12:59 PM CDTTornado WarningBMXGreene, Sumter61 min
Mar 17, 1:18 PM CDTTornado WarningBMXAutauga, Chilton, Elmore57 min
Mar 17, 1:40 PM CDTSevere Thunderstorm WarningBMXPickens, Tuscaloosa28 min
Mar 17, 1:52 PM CDTTornado WarningBMXGreene, Hale, Marengo, Sumter41 min
Mar 17, 1:58 PM CDTTornado WarningBMXMarengo62 min
Mar 17, 1:59 PM CDTTornado WarningBMXGreene, Hale46 min
Mar 17, 2:02 PM CDTTornado Warning Tornado observedBMXChilton, Coosa58 min
Mar 17, 2:09 PM CDTTornado WarningBMXMarengo66 min
Mar 17, 2:14 PM CDTTornado WarningBMXJefferson, Walker61 min
Mar 17, 2:20 PM CDTTornado Warning Tornado observedBMXTuscaloosa40 min
Mar 17, 2:33 PM CDTTornado Warning Tornado observedBMXClay, Coosa, Talladega42 min
Mar 17, 2:44 PM CDTFlash Flood WarningBMXHale, Marengo, Perry2 hr
Mar 17, 2:47 PM CDTAreal Flood AdvisoryBMXGreene, Pickens, Sumter, Tuscaloosa2 hr
Mar 17, 2:48 PM CDTAreal Flood AdvisoryBMXBlount, Jefferson, Walker2 hr
Mar 17, 2:48 PM CDTAreal Flood AdvisoryBMXFayette, Lamar, Marion, Walker, Winston2 hr
Mar 17, 2:51 PM CDTFlash Flood WarningBMXJefferson2 hr
Mar 17, 2:53 PM CDTTornado Warning Tornado observedBMXTuscaloosa52 min
Mar 17, 2:54 PM CDTTornado WarningBMXDallas, Marengo, Perry66 min
Mar 17, 2:58 PM CDTTornado WarningBMXBlount, Jefferson34 min
Mar 17, 3:21 PM CDTTornado WarningBMXTuscaloosa54 min
Mar 17, 3:25 PM CDTFlash Flood WarningBMXTuscaloosa2 hr
Mar 17, 3:28 PM CDTAreal Flood AdvisoryBMXDallas, Perry2 hr
Mar 17, 3:34 PM CDTTornado Warning Tornado observedBMXJefferson, Walker56 min
Mar 17, 3:37 PM CDTTornado WarningBMXMarengo38 min
Mar 17, 3:58 PM CDTTornado Warning Tornado observedBMXJefferson47 min
Mar 17, 3:58 PM CDTTornado WarningBMXDallas, Perry47 min
Mar 17, 4:12 PM CDTTornado WarningBMXDallas48 min
Mar 17, 4:28 PM CDTTornado Warning Tornado observedBMXMarengo62 min
Mar 17, 4:36 PM CDTTornado Warning Tornado observedBMXJefferson54 min
Mar 17, 4:40 PM CDTTornado WarningBMXAutauga50 min
Mar 17, 4:43 PM CDTTornado WarningBMXDallas, Perry47 min
Mar 17, 5:00 PM CDTTornado WarningBMXChilton60 min
Mar 17, 5:09 PM CDTAreal Flood AdvisoryBMXJefferson111 min
Mar 17, 5:15 PM CDTTornado WarningBMXChilton60 min
Mar 17, 5:16 PM CDTTornado Warning Tornado observedBMXBlount44 min
Mar 17, 5:23 PM CDTTornado WarningBMXDallas, Marengo, Perry67 min
Mar 17, 5:26 PM CDTAreal Flood AdvisoryBMXAutauga, Chilton, Dallas, Hale, Marengo, Perry and 1 more3 hr
Mar 17, 5:41 PM CDTTornado WarningBMXMarengo23 min
Mar 17, 5:42 PM CDTTornado WarningBMXChilton, Coosa, Shelby, Talladega48 min
Mar 17, 5:48 PM CDTTornado WarningBMXBlount42 min
Mar 17, 5:56 PM CDTAreal Flood AdvisoryBMXWalker, Winston44 min
Mar 17, 6:09 PM CDTTornado WarningBMXChilton, Coosa, Shelby, Talladega13 min
Mar 17, 6:40 PM CDTFlash Flood WarningBMXWalker, Winston3 hr
Mar 17, 6:48 PM CDTTornado WarningBMXDallas42 min

Nearby

Areal Flood Advisories in Alabama, 2021Every areal flood advisory 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; radar from the NEXRAD Level II archive.