Alert archive / Alabama / River Flood Warnings in 2021

River Flood Warning 59, NWS Birmingham, AL

October 7, 2021Bibb County, Dallas County, Perry County, Alabama

NWS Birmingham, AL issued this river flood warning at Oct 7, 2021, 10:33 AM CDT for Bibb County, Dallas County, Perry County, Alabama. It took effect at Oct 7, 2021, 4:10 PM CDT. It was in force for 25 hr.

The area

The outline as issued.

The facts

Issued: Oct 7, 2021, 10:33 AM CDT (15:33 UTC)
In effect from: Oct 7, 2021, 4:10 PM CDT
Expired: Oct 8, 2021, 4:54 PM CDT
In force: 25 hr
Issued by: NWS Birmingham, AL
Area: Storm-based polygon
Flood severity: Minor

Counties Bibb County, AL, Dallas County, AL, Perry County, AL

The radar

The Birmingham radar (KBMX), 38 km from the middle of the area, began a volume at 15:33 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 river

Written for the forecast point Cahaba River at Centreville (CKLA1). The gauge peaked at 25.38 ft at Oct 8, 2021, 5:00 AM CDT.

Action stage: 23 ft
Minor stage: 23 ft
Moderate stage: 36 ft
Major stage: 42 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 02424000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

The text

As transmitted.

432 
WGUS44 KBMX 071533
FLWBMX

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Birmingham AL
1033 AM CDT Thu Oct 7 2021

...The National Weather Service in Birmingham AL has issued a Flood 
Warning for the following rivers in Alabama...

  Cahaba River At Centreville affecting Bibb, Perry and Dallas 
  Counties.

.Heavy rainfall has occurred over the past few days along portions 
of the Cahaba River basin and a flood warning is now in effect for 
the Cahaba River at Centreville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

Another statement will be issued by this evening, or sooner if 
conditions warrant.

&&


ALC007-047-105-080345-
/O.NEW.KBMX.FL.W.0059.211007T2110Z-211008T2313Z/
/CKLA1.1.ER.211007T2110Z.211008T0000Z.211008T1112Z.NO/
1033 AM CDT Thu Oct 7 2021

The National Weather Service in Birmingham has issued a

* Flood Warning for
  the Cahaba River At Centreville.
* From this afternoon to tomorrow evening.
* At 10:15 AM CDT Thursday the stage was 19.3 feet.
* Flood stage is 23.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage late 
  this afternoon to a crest of 24.7 feet this evening. It will then 
  fall below flood stage tomorrow morning.
* Impact...At 23.0 feet, Pasture lands begin to flood in the 
  Centreville area.


&&

LAT...LON 3313 8699 3292 8710 3281 8719 3281 8728
      3294 8719 3314 8704

$$

4 follow-up statements

515 
WGUS84 KBMX 080151
FLSBMX

Flood Statement
National Weather Service Birmingham AL
851 PM CDT Thu Oct 7 2021

...The Flood Warning is extended for the following rivers in 
Alabama...

  Cahaba River At Centreville affecting Bibb, Perry and Dallas 
  Counties.

.Flooding continues on the Cahaba River at Centreville and a flood 
warning remains in effect.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

Another statement will be issued by Friday morning, or sooner if 
conditions warrant.

&&


ALC007-047-105-081400-
/O.EXT.KBMX.FL.W.0059.000000T0000Z-211009T0217Z/
/CKLA1.1.ER.211007T2143Z.211008T0600Z.211008T1417Z.NO/
851 PM CDT Thu Oct 7 2021

...The Flood Warning is now in effect until late tomorrow evening...

The Flood Warning continues for
  the Cahaba River At Centreville.
* Until late tomorrow evening.
* At 8:15 PM CDT Thursday the stage was 24.1 feet.
* Flood stage is 23.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Forecast...The river is expected to rise to a crest of 24.7 feet 
  just after midnight tonight. It will then fall below flood stage 
  late tomorrow morning.
* Impact...At 23.0 feet, Pasture lands begin to flood in the 
  Centreville area.


&&

LAT...LON 3313 8699 3292 8710 3281 8719 3281 8728
      3294 8719 3314 8704

$$

170 
WGUS84 KBMX 080625
FLSBMX

Flood Statement
National Weather Service Birmingham AL
125 AM CDT Fri Oct 8 2021

...The Flood Warning is extended for the following rivers in 
Alabama...

  Cahaba River At Centreville affecting Bibb, Perry and Dallas 
  Counties.

.Flooding continues on the Cahaba River at Centreville and a flood 
warning remains in effect.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

Another statement will be issued by this afternoon, or sooner if 
conditions warrant.

&&


ALC007-047-105-081830-
/O.EXT.KBMX.FL.W.0059.000000T0000Z-211009T1038Z/
/CKLA1.1.ER.211007T2143Z.211008T1200Z.211008T2238Z.NO/
125 AM CDT Fri Oct 8 2021

...The Flood Warning is now in effect until late tonight...

The Flood Warning continues for
  the Cahaba River At Centreville.
* Until late tonight.
* At 12:15 AM CDT Friday the stage was 24.9 feet.
* Flood stage is 23.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Forecast...The river is expected to rise to a crest of 25.5 feet 
  this morning. It will then fall below flood stage late this 
  afternoon.


&&

LAT...LON 3313 8699 3292 8710 3281 8719 3281 8728
      3294 8719 3314 8704

$$

669 
WGUS84 KBMX 081420
FLSBMX

Flood Statement
National Weather Service Birmingham AL
920 AM CDT Fri Oct 8 2021

...The Flood Warning is extended for the following rivers in 
Alabama...

  Cahaba River At Centreville affecting Bibb, Perry and Dallas 
  Counties.

.Flooding continues on the Cahaba River  and a flood warning remains 
in effect.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

Another statement will be issued by this evening, or sooner if 
conditions warrant.

&&


ALC007-047-105-090230-
/O.EXT.KBMX.FL.W.0059.000000T0000Z-211009T1200Z/
/CKLA1.1.ER.211007T2143Z.211008T1045Z.211009T0000Z.NO/
920 AM CDT Fri Oct 8 2021

...The Flood Warning is now in effect until tomorrow morning...

The Flood Warning continues for
  the Cahaba River At Centreville.
* Until tomorrow morning.
* At 8:15 AM CDT Friday the stage was 25.3 feet.
* Flood stage is 23.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Forecast...The river is expected to fall below flood stage this 
  evening and continue falling to 8 feet by Sunday morning.


&&

LAT...LON 3313 8699 3292 8710 3281 8719 3281 8728
      3294 8719 3314 8704

$$

384 
WGUS84 KBMX 082154
FLSBMX

Flood Statement
National Weather Service Birmingham AL
454 PM CDT Fri Oct 8 2021

...The Flood Warning is cancelled for the following rivers in 
Alabama...

  Cahaba River At Centreville affecting Bibb, Perry and Dallas 
  Counties.

.The Cahaba River at Centreville has fallen below flood stage, so 
the flood warning has been cancelled.

ALC007-047-105-082300-
/O.CAN.KBMX.FL.W.0059.000000T0000Z-211008T2154Z/
/CKLA1.1.ER.211007T2143Z.211008T1045Z.211008T2034Z.NO/
454 PM CDT Fri Oct 8 2021

...The Flood Warning for the Cahaba River At Centreville has been 
cancelled...

The Flood Warning is cancelled for
  the Cahaba River At Centreville.
* At 4:15 PM CDT Friday the stage was 22.6 feet.
* Flood stage is 23.0 feet.
* Forecast...The river is expected to fall to 3.6 feet early 
  Wednesday afternoon.


&&

LAT...LON 3313 8699 3292 8710 3281 8719 3281 8728
      3294 8719 3314 8704

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 6, 7:17 PM CDT	Flash Flood Warning Emergency	BMX	Jefferson, Shelby	10 hr
Oct 6, 7:57 PM CDT	Special Weather Statement	BMX	Shelby	33 min
Oct 6, 8:35 PM CDT	Special Weather Statement	BMX	Shelby	40 min
Oct 7, 12:06 AM CDT	River Flood Warning	BMX	Bibb, Jefferson, Shelby	10 hr
Oct 7, 12:24 AM CDT	Areal Flood Advisory	BMX	Bibb, Chilton, Shelby	3 hr
Oct 7, 5:14 AM CDT	Dense Fog Advisory	BMX	Autauga, Bibb, Blount, Chilton, Coosa, Dallas and 19 more	5 hr
Oct 7, 9:00 AM CDT	Areal Flood Advisory	BMX	Lee, Macon	3 hr
Oct 7, 9:59 AM CDT	Areal Flood Advisory	BMX	Chambers, Lee	3 hr

Nearby

River Flood Warnings in Alabama, 2021 Every river flood warning 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; the gauge from the NWS water service and the USGS.