Alert archive / Alabama / Flash Flood Warnings in 2021
Flash Flood Warning 51, NWS Birmingham, AL
NWS Birmingham, AL issued this flash flood warning at Oct 3, 2021, 9:05 PM CDT for 4 counties in Alabama. It was in force for 3 hr. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Oct 3, 2021, 9:05 PM CDT (02:05 UTC)
- Expired
- Oct 4, 2021, 12:15 AM CDT
- In force
- 3 hr
- Issued by
- NWS Birmingham, AL
- Area
- Storm-based polygon
- Flood severity
- None
Counties Fayette County, AL, Jefferson County, AL, Marion County, AL, Walker County, AL
The radar
The Columbus AFB radar (KGWX), 75 km from the middle of the area, began a volume at 02:05 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Oct 3, 9:10 PM CDT | FLASH FLOOD | 1 Wnw Dora, AL | AT LEAST 4 ROADS ARE FLOODED AND IMPASSABLE IN THE DORA AREA. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Birmingham, AL (KBMX), launched 00:00Z, 2.1 hours before the alert went out and 102 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.
- Mixed-layer CAPE
- 821 J/kg
- Mixed-layer CIN
- -19 J/kg
- Mixed-layer LCL
- 626 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 71 m²/s²
- 0-3 km storm-relative helicity
- 84 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.6
The text
As transmitted.
434
WGUS54 KBMX 040205
FFWBMX
ALC057-073-093-127-040515-
/O.NEW.KBMX.FF.W.0051.211004T0205Z-211004T0515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Birmingham AL
905 PM CDT Sun Oct 3 2021
The National Weather Service in Birmingham has issued a
* Flash Flood Warning for...
Northwestern Jefferson County in central Alabama...
Walker County in central Alabama...
Southeastern Marion County in northwestern Alabama...
Northeastern Fayette County in west central Alabama...
* Until 1215 AM CDT.
* At 905 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2 and 3 inches of rain
have fallen. Additional rainfall amounts of 1 to 2 inches are
possible in the warned area. Flash flooding is ongoing or expected
to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Jasper, Winfield, Sumiton, Cordova, Dora, Carbon Hill, Adamsville,
Graysville, Parrish, Oakman, Glen Allen, West Jefferson, Kansas,
Nauvoo, Gu-Win, Eldridge, Gorgas, Gorgas Steam Plant, Beloit and
Burnwell.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Move to higher ground now. Act quickly to protect your life.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Be aware of your surroundings and do not drive on flooded roads.
In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.
&&
LAT...LON 3393 8794 3393 8775 3400 8762 3399 8733
3385 8734 3371 8692 3357 8710 3380 8776
FLASH FLOOD...RADAR INDICATED
$$
75/Linhares1 follow-up statement
806
WGUS74 KBMX 040331
FFSBMX
Flash Flood Statement
National Weather Service Birmingham AL
1031 PM CDT Sun Oct 3 2021
ALC057-093-040341-
/O.CAN.KBMX.FF.W.0051.000000T0000Z-211004T0515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Fayette AL-Marion AL-
1031 PM CDT Sun Oct 3 2021
...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHEASTERN MARION AND
NORTHEASTERN FAYETTE COUNTIES...
Heavy rainfall has ended, and flash flooding is no longer expected
to pose an immediate threat. Please continue to heed remaining road
closures.
LAT...LON 3377 8726 3377 8711 3373 8697 3368 8697
3360 8707 3361 8721 3372 8733
$$
ALC073-127-040515-
/O.CON.KBMX.FF.W.0051.000000T0000Z-211004T0515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Jefferson AL-Walker AL-
1031 PM CDT Sun Oct 3 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1215 AM CDT MONDAY
FOR NORTHWESTERN JEFFERSON AND SOUTHEASTERN WALKER COUNTIES...
At 1031 PM CDT, local law enforcement reported thunderstorms
producing heavy rain across the warned area. Between 3 and 4 inches
of rain have fallen. Additional rainfall amounts up to 0.5 inches
are possible in the warned area. Flash flooding is already occurring.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Law enforcement reported.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
Sumiton, Cordova, Dora, Adamsville, Parrish, West Jefferson,
Burnwell, Beloit, Gorgas Steam Plant, Quinton, Gorgas, Barney,
Miller Steam Plant, Goodsprings and Sayre.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 3377 8726 3377 8711 3373 8697 3368 8697
3360 8707 3361 8721 3372 8733
FLASH FLOOD...OBSERVED
$$
40/SizemoreThe office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 3, 8:04 PM CDT | Areal Flood Advisory | BMX | Fayette, Walker | 116 min |
| Oct 3, 10:59 PM CDT | Areal Flood Advisory | BMX | Jefferson | 3 hr |
| Oct 4, 12:53 AM CDT | Areal Flood Advisory | BMX | Jefferson, St. Clair, Shelby | 3 hr |
| Oct 4, 1:23 AM CDT | Dense Fog Advisory | BMX | Blount, Fayette, Lamar, Marion, Pickens, Tuscaloosa and 2 more | 8 hr |
| Oct 4, 3:11 AM CDT | Flash Flood Watch | BMX | Autauga, Barbour, Bibb, Blount, Bullock, Calhoun and 30 more | 3 days |
| Oct 4, 9:37 AM CDT | Areal Flood Advisory | BMX | Lee | 3 hr |
| Oct 4, 11:51 AM CDT | Areal Flood Advisory | BMX | Russell | 3 hr |
| Oct 4, 12:20 PM CDT | Flash Flood Warning | BMX | Lee, Russell | 3 hr |
| Oct 4, 12:44 PM CDT | Areal Flood Advisory | BMX | Lowndes, Montgomery | 3 hr |
| Oct 4, 1:33 PM CDT | Flash Flood Warning | BMX | Montgomery | 87 min |
| Oct 4, 3:12 PM CDT | Special Weather Statement | BMX | Coosa | 33 min |
| Oct 4, 3:21 PM CDT | Flash Flood Warning | BMX | Lee, Russell | 3 hr |
| Oct 4, 3:28 PM CDT | Flash Flood Warning | BMX | Lowndes, Montgomery | 3 hr |
| Oct 4, 4:40 PM CDT | Areal Flood Advisory | BMX | Chilton, Coosa | 3 hr |
| Oct 4, 4:56 PM CDT | Flash Flood Warning | BMX | Chilton | 3 hr |
| Oct 4, 5:09 PM CDT | Special Weather Statement | BMX | Bibb | 36 min |
| Oct 4, 5:09 PM CDT | Special Weather Statement | BMX | Shelby | 36 min |
| Oct 4, 5:16 PM CDT | Severe Thunderstorm Warning | BMX | Bibb | 29 min |
| Oct 4, 5:22 PM CDT | Special Weather Statement | BMX | Shelby | 23 min |
| Oct 4, 5:43 PM CDT | Severe Thunderstorm Warning | BMX | Shelby | 47 min |
| Oct 4, 5:47 PM CDT | Severe Thunderstorm Warning | BMX | Bibb, Shelby | 43 min |
| Oct 4, 6:02 PM CDT | Special Weather Statement | BMX | Shelby | 28 min |
| Oct 4, 6:17 PM CDT | Special Weather Statement | BMX | Jefferson | 28 min |
| Oct 4, 6:34 PM CDT | Special Weather Statement | BMX | Jefferson | 26 min |
Nearby
Flash Flood Warnings in Alabama, 2021Every flash 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.