Alert archive / Alabama / River Flood Warnings in 2021

River Flood Warning 46, NWS Birmingham, AL

May 5, 20215 counties in Alabama

NWS Birmingham, AL issued this river flood warning at May 5, 2021, 9:54 AM CDT for 5 counties in Alabama. It took effect at May 5, 2021, 9:15 PM CDT. It was in force for 22 hr.

The area

The outline as issued.

The facts

Issued: May 5, 2021, 9:54 AM CDT (14:54 UTC)
In effect from: May 5, 2021, 9:15 PM CDT
Expired: May 6, 2021, 7:43 PM CDT
In force: 22 hr
Issued by: NWS Birmingham, AL
Area: Storm-based polygon
Flood severity: Minor

Counties Autauga County, AL, Dallas County, AL, Elmore County, AL, Lowndes County, AL, Montgomery County, AL

The radar

The Maxwell AFB radar (KMXX), 59 km from the middle of the area, began a volume at 14:56 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 Alabama River at Montgomery (MGMA1). The gauge peaked at 34.96 ft at May 6, 2021, 11:00 AM CDT.

Action stage: 26 ft
Minor stage: 35 ft
Moderate stage: 45 ft
Major stage: 53 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 02419988, 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.

439 
WGUS44 KBMX 051454
FLWBMX

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Birmingham AL
954 AM CDT Wed May 5 2021

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

  Alabama River At Montgomery affecting Lowndes, Montgomery, Elmore,
   Dallas and Autauga Counties.

.Heavy rainfall has occurred over the last 24 hours along the 
Alabama River basin and at Montgomery a flood warning is now in 
effect for the Alabama River .

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.

&&


ALC001-047-051-085-101-060300-
/O.NEW.KBMX.FL.W.0046.210506T0215Z-210508T1200Z/
/MGMA1.1.ER.210506T0215Z.210507T0000Z.210508T0000Z.NO/
954 AM CDT Wed May 5 2021

The National Weather Service in Birmingham has issued a

* Flood Warning for
  the Alabama River At Montgomery.
* From this evening to Saturday morning.
* At 8:00 AM CDT Wednesday the stage was 30.5 feet.
* Flood stage is 35.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage late 
  this evening to a crest of 38.5 feet Thursday evening. It will 
  then fall below flood stage Friday evening.


&&

LAT...LON 3247 8631 3236 8630 3239 8638 3232 8654
      3236 8661 3245 8636

$$

08

4 follow-up statements

951 
WGUS84 KBMX 060113
FLSBMX

Flood Statement
National Weather Service Birmingham AL
813 PM CDT Wed May 5 2021

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

  Alabama River At Montgomery affecting Lowndes, Montgomery, Elmore,
   Dallas and Autauga Counties.

.Flooding continues on the Alabama 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 Thursday morning, or sooner if 
conditions warrant.

&&


ALC001-047-051-085-101-061315-
/O.EXT.KBMX.FL.W.0046.210506T0622Z-210508T2113Z/
/MGMA1.1.ER.210506T0622Z.210507T0600Z.210508T0913Z.NO/
813 PM CDT Wed May 5 2021

...The Flood Warning is now in effect until Saturday afternoon...

The Flood Warning continues for
  the Alabama River At Montgomery.
* From late tonight to Saturday afternoon.
* At 7:00 PM CDT Wednesday the stage was 33.5 feet.
* Flood stage is 35.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage just 
  after midnight tonight to a crest of 38.6 feet early Friday 
  morning. It will then fall below flood stage early Saturday 
  morning.
* Impact...At 35.0 feet, Extensive flooding of low lands in the area 
  occurs.


&&

LAT...LON 3247 8631 3236 8630 3239 8638 3232 8654
      3236 8661 3245 8636

$$

084 
WGUS84 KBMX 061448
FLSBMX

Flood Statement
National Weather Service Birmingham AL
948 AM CDT Thu May 6 2021

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

  Alabama River At Montgomery affecting Lowndes, Montgomery, Elmore,
   Dallas and Autauga Counties.

.Flooding continues on the Alabama 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.

&&


ALC001-047-051-085-101-070300-
/O.EXT.KBMX.FL.W.0046.000000T0000Z-210508T2337Z/
/MGMA1.1.ER.210506T1416Z.210507T1200Z.210508T1137Z.NO/
948 AM CDT Thu May 6 2021

...The Flood Warning is now in effect until Saturday evening...

The Flood Warning continues for
  the Alabama River At Montgomery.
* Until Saturday evening.
* At 9:00 AM CDT Thursday the stage was 34.9 feet.
* Flood stage is 35.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise to a crest of 38.1 feet 
  tomorrow morning. It will then fall below flood stage Saturday 
  morning.


&&

LAT...LON 3247 8631 3236 8630 3239 8638 3232 8654
      3236 8661 3245 8636

$$

347 
WGUS84 KBMX 061912
FLSBMX

Flood Statement
National Weather Service Birmingham AL
212 PM CDT Thu May 6 2021

...The Flood Warning continues for the following rivers in Alabama...

  Alabama River At Montgomery affecting Lowndes, Montgomery, Elmore,
   Dallas and Autauga Counties.

.Flooding continues on the Alabama 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 late tonight, or sooner if 
conditions warrant.

&&


ALC001-047-051-085-101-070715-
/O.EXT.KBMX.FL.W.0046.000000T0000Z-210507T1200Z/
/MGMA1.1.ER.210506T1416Z.210507T0000Z.210507T0000Z.NO/
212 PM CDT Thu May 6 2021

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

The Flood Warning continues for
  the Alabama River At Montgomery.
* Until Friday morning.
* At 1:00 PM CDT Thursday the stage was 34.9 feet.
* Flood stage is 35.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise to a crest of 35.0 feet 
  this evening.
* Impact...At 35.0 feet, extensive flooding of low lands in the area 
  occurs.


&&

LAT...LON 3247 8631 3236 8630 3239 8638 3232 8654
      3236 8661 3245 8636

$$

942 
WGUS84 KBMX 070043
FLSBMX

Flood Statement
National Weather Service Birmingham AL
743 PM CDT Thu May 6 2021

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

  Alabama River At Montgomery affecting Lowndes, Montgomery, Elmore,
   Dallas and Autauga Counties.

.The Alabama River has crested below flood stage, so the flood 
warning has been cancelled.

ALC001-047-051-085-101-070145-
/O.CAN.KBMX.FL.W.0046.000000T0000Z-210507T0043Z/
/MGMA1.1.ER.210506T1416Z.210507T0000Z.210507T0000Z.NO/
743 PM CDT Thu May 6 2021

...The Flood Warning for the Alabama River At Montgomery has been 
cancelled...

The Flood Warning is cancelled for
  the Alabama River At Montgomery.
* At 7:00 PM CDT Thursday the stage was 34.8 feet.
* Flood stage is 35.0 feet.
* Forecast...The river is expected to fall to 23.3 feet Tuesday 
  evening.


&&

LAT...LON 3247 8631 3236 8630 3239 8638 3232 8654
      3236 8661 3245 8636

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 4, 7:06 PM CDT	Areal Flood Warning	BMX	Bibb, Tuscaloosa	6 hr
May 4, 7:06 PM CDT	Severe Thunderstorm Warning	BMX	Russell	54 min
May 4, 7:12 PM CDT	Areal Flood Warning	BMX	Jefferson, St. Clair, Shelby	6 hr
May 4, 7:21 PM CDT	Severe Thunderstorm Warning	BMX	Barbour	54 min
May 4, 7:22 PM CDT	Areal Flood Warning	BMX	Shelby, Talladega	6 hr
May 4, 7:29 PM CDT	Areal Flood Advisory	BMX	Clay, Coosa, Tallapoosa	33 min
May 4, 8:02 PM CDT	Areal Flood Warning	BMX	Clay, Coosa, Tallapoosa	4 hr
May 4, 8:05 PM CDT	Areal Flood Advisory	BMX	Chambers, Randolph, Tallapoosa	4 hr
May 4, 9:21 PM CDT	River Flood Warning	BMX	Bibb, Dallas, Perry	47 hr
May 4, 9:21 PM CDT	River Flood Warning	BMX	Dallas, Perry	4 days
May 4, 9:23 PM CDT	River Flood Warning	BMX	Chilton, Coosa, Elmore, Shelby, Talladega	30 hr
May 4, 9:40 PM CDT	River Flood Warning	BMX	Jefferson, Tuscaloosa, Walker	36 hr
May 4, 9:41 PM CDT	River Flood Warning	BMX	Greene, Pickens, Sumter	13 hr
May 4, 9:41 PM CDT	River Flood Warning	BMX	Greene, Hale, Marengo	3 days
May 5, 4:34 AM CDT	River Flood Warning	BMX	Chambers, Randolph, Tallapoosa	23 hr
May 5, 9:44 AM CDT	River Flood Warning	BMX	Elmore, Montgomery	59 hr
May 5, 6:59 PM CDT	River Flood Warning	BMX	Chilton, Coosa, St. Clair, Shelby, Talladega	61 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.