Alert archive / Alabama / River Flood Warnings in 2021
River Flood Warning 47, NWS Birmingham, AL
NWS Birmingham, AL issued this river flood warning at May 5, 2021, 6:59 PM CDT for 5 counties in Alabama. It took effect at May 5, 2021, 8:00 PM CDT. It was in force for 60 hr.
The area
The outline as issued.
The facts
- Issued
- May 5, 2021, 6:59 PM CDT (23:59 UTC)
- In effect from
- May 5, 2021, 8:00 PM CDT
- Expired
- May 8, 2021, 8:01 AM CDT
- In force
- 60 hr
- Issued by
- NWS Birmingham, AL
- Area
- Storm-based polygon
- Flood severity
- Minor
Counties Chilton County, AL, Coosa County, AL, Shelby County, AL, St. Clair County, AL, Talladega County, AL
The radar
The Birmingham radar (KBMX), 63 km from the middle of the area, began a volume at 00:05 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 river
Written for the forecast point Coosa River at Logan Martin Dam (CCSA1).
- Action stage
- 465.5 ft
- Minor stage
- 467 ft
- Moderate stage
- 470 ft
- Major stage
- 475 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 02405200, 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.
203
WGUS44 KBMX 052359
FLWBMX
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Birmingham AL
659 PM CDT Wed May 5 2021
...The National Weather Service in Birmingham AL has issued a Flood
Warning for the following rivers in Alabama...
Coosa River At Logan Martin Dam affecting Coosa, Chilton, Shelby,
Talladega and St. Clair Counties.
.Heavy rainfall Tuesday over central Alabama has caused significant
rises on the Coosa River, and a flood warning is now in effect for
the Coosa River at Logan Martin Dam.
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.
&&
ALC021-037-115-117-121-061200-
/O.NEW.KBMX.FL.W.0047.210506T0130Z-210507T2200Z/
/CCSA1.1.ER.210506T0130Z.210506T1200Z.210507T1000Z.NO/
659 PM CDT Wed May 5 2021
The National Weather Service in Birmingham has issued a
* Flood Warning for
the Coosa River At Logan Martin Dam.
* Until Friday afternoon.
* At 6:00 PM CDT Wednesday the stage was 466.9 feet.
* Flood stage is 467.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage this
evening to a crest of 467.5 feet tomorrow morning. It will then
fall below flood stage early Friday morning.
* Impact...At 467.0 feet, Flooding of some boathouses and docks
around the lake occurs.
&&
LAT...LON 3361 8616 3353 8616 3340 8633 3342 8636
3351 8633 3361 8620
$$8 follow-up statements
910
WGUS84 KBMX 060059
FLSBMX
Flood Statement
National Weather Service Birmingham AL
759 PM CDT Wed May 5 2021
...The Flood Warning is extended for the following rivers in
Alabama...
Coosa River At Logan Martin Dam affecting Coosa, Chilton, Shelby,
Talladega and St. Clair Counties.
...The Flood Warning continues for the following rivers in Alabama...
Coosa River At Childersburg affecting Coosa, Chilton, Elmore,
Talladega and Shelby Counties.
.Flooding continues on the Coosa River and a flood warning remains
in effect.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
Another statement will be issued by Thursday morning, or sooner if
conditions warrant.
&&
ALC021-037-051-117-121-061300-
/O.EXT.KBMX.FL.W.0040.000000T0000Z-210506T1501Z/
/CHLA1.1.ER.210505T0900Z.210505T1515Z.210506T0301Z.NO/
759 PM CDT Wed May 5 2021
...The Flood Warning is now in effect until late tomorrow morning...
The Flood Warning continues for
the Coosa River At Childersburg.
* Until Thursday morning.
* At 6:45 PM CDT Wednesday the stage was 402.1 feet.
* Flood stage is 402.0 feet.
* Minor flooding is occurring.
* Forecast...The river is expected to fall below flood stage late
this evening and continue falling to 396.9 feet Monday evening.
* Impact...At 402.0 feet, Flooding of low lying areas begins. At 404
feet flooding of some low lying roads in the area begins...and the
yards of some homes near the river become flooded.
&&
LAT...LON 3333 8632 3320 8643 3322 8648 3328 8645
3329 8639 3335 8637
$$
ALC021-037-115-117-121-061300-
/O.EXT.KBMX.FL.W.0047.210506T0100Z-210507T2200Z/
/CCSA1.1.ER.210506T0100Z.210506T1200Z.210507T1000Z.NO/
759 PM CDT Wed May 5 2021
...The Flood Warning is now in effect until Friday afternoon...
The Flood Warning continues for
the Coosa River At Logan Martin Dam.
* Until Friday afternoon.
* At 7:00 PM CDT Wednesday the stage was 466.9 feet.
* Flood stage is 467.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage this
evening to a crest of 467.5 feet tomorrow morning. It will then
fall below flood stage early Friday morning.
&&
LAT...LON 3361 8616 3353 8616 3340 8633 3342 8636
3351 8633 3361 8620
$$132
WGUS84 KBMX 061436
FLSBMX
Flood Statement
National Weather Service Birmingham AL
936 AM CDT Thu May 6 2021
...The Flood Warning continues for the following rivers in Alabama...
Coosa River At Logan Martin Dam affecting Coosa, Chilton, Shelby,
Talladega and St. Clair Counties.
.Flooding continues on the Coosa River and a flood warning remains
in effect.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
Another statement will be issued by this evening, or sooner if
conditions warrant.
&&
ALC021-037-115-117-121-070245-
/O.CON.KBMX.FL.W.0047.000000T0000Z-210507T2200Z/
/CCSA1.1.ER.210506T0036Z.210506T1300Z.210507T1000Z.NO/
936 AM CDT Thu May 6 2021
...The Flood Warning remains in effect...
The Flood Warning continues for
the Coosa River At Logan Martin Dam.
* Until Friday afternoon.
* At 8:00 AM CDT Thursday the stage was 467.7 feet.
* Flood stage is 467.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Forecast...The river is expected to fall below flood stage late
tonight and continue falling to 463.4 feet Tuesday morning.
&&
LAT...LON 3361 8616 3353 8616 3340 8633 3342 8636
3351 8633 3361 8620
$$273
WGUS84 KBMX 061746
FLSBMX
Flood Statement
National Weather Service Birmingham AL
1246 PM CDT Thu May 6 2021
...The Flood Warning is extended for the following rivers in
Alabama...
Coosa River At Logan Martin Dam affecting Coosa, Chilton, Shelby,
Talladega and St. Clair Counties.
.Flooding continues on the Coosa 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.
&&
ALC021-037-115-117-121-070600-
/O.EXT.KBMX.FL.W.0047.000000T0000Z-210509T0800Z/
/CCSA1.1.ER.210506T0036Z.210507T0000Z.210508T2000Z.NO/
1246 PM CDT Thu May 6 2021
...The Flood Warning is now in effect until early Sunday morning...
The Flood Warning continues for
the Coosa River At Logan Martin Dam.
* Until late Saturday night.
* At 12:00 PM CDT Thursday the stage was 467.9 feet.
* Flood stage is 467.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Forecast...The river is expected to rise to a crest of 468.1 feet
this evening. It will then fall below flood stage Saturday
afternoon.
&&
LAT...LON 3361 8616 3353 8616 3340 8633 3342 8636
3351 8633 3361 8620
$$490
WGUS84 KBMX 061907
FLSBMX
Flood Statement
National Weather Service Birmingham AL
207 PM CDT Thu May 6 2021
...The Flood Warning is extended for the following rivers in
Alabama...
Coosa River At Logan Martin Dam affecting Coosa, Chilton, Shelby,
Talladega and St. Clair Counties.
.Flooding continues on the Coosa River and a flood warning remains
in effect.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
Another statement will be issued by late tonight, or sooner if
conditions warrant.
&&
ALC021-037-115-117-121-070715-
/O.EXT.KBMX.FL.W.0047.000000T0000Z-210509T0900Z/
/CCSA1.1.ER.210506T0036Z.210507T0600Z.210508T2100Z.NO/
207 PM CDT Thu May 6 2021
...The Flood Warning is now in effect until early Sunday morning...
The Flood Warning continues for
the Coosa River At Logan Martin Dam.
* Until late Saturday night.
* At 1:00 PM CDT Thursday the stage was 467.9 feet.
* Flood stage is 467.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Forecast...The river is expected to rise to a crest of 468.1 feet
just after midnight tonight. It will then fall below flood stage
Saturday afternoon.
&&
LAT...LON 3361 8616 3353 8616 3340 8633 3342 8636
3351 8633 3361 8620
$$645
WGUS84 KBMX 070040
FLSBMX
Flood Statement
National Weather Service Birmingham AL
740 PM CDT Thu May 6 2021
...The Flood Warning continues for the following rivers in Alabama...
Coosa River At Logan Martin Dam affecting Coosa, Chilton, Shelby,
Talladega and St. Clair Counties.
.Flooding continues on the Coosa 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 Friday morning, or sooner if
conditions warrant.
&&
ALC021-037-115-117-121-071245-
/O.CON.KBMX.FL.W.0047.000000T0000Z-210509T0900Z/
/CCSA1.1.ER.210506T0036Z.210507T0600Z.210508T2100Z.NO/
740 PM CDT Thu May 6 2021
...The Flood Warning remains in effect...
The Flood Warning continues for
the Coosa River At Logan Martin Dam.
* Until late Saturday night.
* At 7:00 PM CDT Thursday the stage was 468.0 feet.
* Flood stage is 467.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Forecast...The river is expected to rise to a crest of 468.1 feet
just after midnight tonight. It will then fall below flood stage
Saturday afternoon.
&&
LAT...LON 3361 8616 3353 8616 3340 8633 3342 8636
3351 8633 3361 8620
$$550
WGUS84 KBMX 071448
FLSBMX
Flood Statement
National Weather Service Birmingham AL
948 AM CDT Fri May 7 2021
...The Flood Warning continues for the following rivers in Alabama...
Coosa River At Logan Martin Dam affecting Coosa, Chilton, Shelby,
Talladega and St. Clair Counties.
.Flooding continues on the Coosa River and a flood warning remains
in effect.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
Another statement will be issued by this evening, or sooner if
conditions warrant.
&&
ALC021-037-115-117-121-080300-
/O.EXT.KBMX.FL.W.0047.000000T0000Z-210509T0000Z/
/CCSA1.1.ER.210506T0036Z.210507T0700Z.210508T1200Z.NO/
948 AM CDT Fri May 7 2021
...The Flood Warning is now in effect until tomorrow evening...
The Flood Warning continues for
the Coosa River At Logan Martin Dam.
* Until Saturday evening.
* At 9:00 AM CDT Friday the stage was 468.1 feet.
* Flood stage is 467.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Forecast...The river is expected to fall below flood stage
tomorrow morning and continue falling to 464.2 feet Wednesday
morning.
&&
LAT...LON 3361 8616 3353 8616 3340 8633 3342 8636
3351 8633 3361 8620
$$
89^GSatterwhite976
WGUS84 KBMX 080214
FLSBMX
Flood Statement
National Weather Service Birmingham AL
914 PM CDT Fri May 7 2021
...The Flood Warning continues for the following rivers in Alabama...
Coosa River At Logan Martin Dam affecting Coosa, Chilton, Shelby,
Talladega and St. Clair Counties.
.Flooding continues on the Coosa 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 Saturday morning, or sooner if
conditions warrant.
&&
ALC021-037-115-117-121-081415-
/O.CON.KBMX.FL.W.0047.000000T0000Z-210509T0000Z/
/CCSA1.1.ER.210506T0036Z.210507T0700Z.210508T1200Z.NO/
914 PM CDT Fri May 7 2021
...The Flood Warning remains in effect...
The Flood Warning continues for
the Coosa River At Logan Martin Dam.
* Until Saturday evening.
* At 8:00 PM CDT Friday the stage was 467.5 feet.
* Flood stage is 467.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Forecast...The river is expected to fall below flood stage
tomorrow morning and continue falling to 464.3 feet Wednesday
evening.
&&
LAT...LON 3361 8616 3353 8616 3340 8633 3342 8636
3351 8633 3361 8620
$$
40/Sizemore458
WGUS84 KBMX 081301
FLSBMX
Flood Statement
National Weather Service Birmingham AL
801 AM CDT Sat May 8 2021
...The Flood Warning is cancelled for the following rivers in
Alabama...
Coosa River At Logan Martin Dam affecting Coosa, Chilton, Shelby,
Talladega and St. Clair Counties.
.The Coosa River has fallen below flood stage, and the flood warning
has been cancelled.
ALC021-037-115-117-121-081415-
/O.CAN.KBMX.FL.W.0047.000000T0000Z-210508T1301Z/
/CCSA1.1.ER.210506T0036Z.210507T0700Z.210508T1200Z.NO/
801 AM CDT Sat May 8 2021
...The Flood Warning for the Coosa River At Logan Martin Dam has
been cancelled...
The Flood Warning is cancelled for
the Coosa River At Logan Martin Dam.
* At 7:00 AM CDT Saturday the stage was 466.9 feet.
* Flood stage is 467 feet.
* Forecast...River levels will continue to fall to 464.0 feet
Thursday morning.
&&
LAT...LON 3361 8616 3353 8616 3340 8633 3342 8636
3351 8633 3361 8620
$$
56The 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, 9:54 AM CDT | River Flood Warning | BMX | Autauga, Dallas, Elmore, Lowndes, Montgomery | 34 hr |
Nearby
River Flood Warnings in Alabama, 2021Every 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.