Alert archive / Alabama / Flash Flood Warnings in 2020
Flash Flood Warning 13, NWS Birmingham, AL
NWS Birmingham, AL issued this flash flood warning at Apr 19, 2020, 8:00 AM CDT for 6 counties in Alabama. It was in force for 3 hr. 2 reports 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
- Apr 19, 2020, 8:00 AM CDT (13:00 UTC)
- Expired
- Apr 19, 2020, 11:00 AM CDT
- In force
- 3 hr
- Issued by
- NWS Birmingham, AL
- Area
- Storm-based polygon
- Flood severity
- None
Counties Bibb County, AL, Chilton County, AL, Coosa County, AL, Jefferson County, AL, Shelby County, AL, Tuscaloosa County, AL
The radar
The Birmingham radar (KBMX), 14 km from the middle of the area, began a volume at 13:00 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 |
|---|---|---|---|
| Apr 19, 8:44 AM CDT | FLASH FLOOD | 2 Se Waxahatchee At Lay, AL | AT LEAST 6 INCHES OF WATER COVERING ROADWAYS NEAR WILDWOOD SHORES. |
| Apr 19, 9:59 AM CDT | FLASH FLOOD | 1 Sw Clanton, AL | PORTION OF ENTERPRISE RD IS WASHING AWAY. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 1.0 hours before the alert went out and 219 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1440 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 88 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
558
WGUS54 KBMX 191300
FFWBMX
ALC007-021-037-073-117-125-191600-
/O.NEW.KBMX.FF.W.0013.200419T1300Z-200419T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Birmingham AL
800 AM CDT Sun Apr 19 2020
The National Weather Service in Birmingham has issued a
* Flash Flood Warning for...
Chilton County in central Alabama...
Tuscaloosa County in west central Alabama...
Shelby County in central Alabama...
Bibb County in central Alabama...
Jefferson County in central Alabama...
Coosa County in east central Alabama...
* Until 1100 AM CDT.
* At 800 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Up to two inches of rain have
already fallen. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar indicated.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other
drainage and low lying areas.
* Some locations that will experience flooding include...
Birmingham, Tuscaloosa, Hoover, Vestavia Hills, Alabaster,
Bessemer, Homewood, Northport, Pelham, Mountain Brook, Trussville,
Helena, Hueytown, Gardendale, Irondale, Leeds, Moody, Calera,
Fairfield and Chelsea.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3355 8719 3366 8706 3379 8700 3384 8676
3376 8654 3356 8655 3350 8648 3350 8638
3335 8634 3319 8650 3310 8649 3310 8601
3276 8601 3274 8683 3284 8702 3283 8723
3288 8741 3301 8741 3302 8782 3322 8783
FLASH FLOOD...RADAR INDICATED
$$2 follow-up statements
525
WGUS74 KBMX 191432
FFSBMX
Flash Flood Statement
National Weather Service Birmingham AL
932 AM CDT Sun Apr 19 2020
ALC073-125-191437-
/O.CAN.KBMX.FF.W.0013.000000T0000Z-200419T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Tuscaloosa AL-Jefferson AL-
932 AM CDT Sun Apr 19 2020
...THE FLASH FLOOD WARNING FOR TUSCALOOSA AND JEFFERSON COUNTIES IS
CANCELLED...
Flooding is no longer expected to pose a threat. Please continue to
heed any remaining road closures.
LAT...LON 3301 8732 3309 8731 3313 8728 3313 8720
3323 8715 3325 8698 3347 8667 3347 8661
3353 8652 3350 8638 3335 8634 3319 8650
3310 8649 3310 8601 3276 8601 3274 8683
3284 8702 3283 8723 3288 8741 3300 8741
$$
ALC007-021-037-117-191600-
/O.CON.KBMX.FF.W.0013.000000T0000Z-200419T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Chilton AL-Shelby AL-Bibb AL-Coosa AL-
932 AM CDT Sun Apr 19 2020
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1100 AM CDT FOR
CHILTON...SHELBY...BIBB AND COOSA COUNTIES...
At 927 AM CDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area, extending from southeastern Bibb
County, across Chilton County, southern Shelby County, and Coosa
County. Two to three inches of rain has already fallen and an
additional one to two inches is possible.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar indicated.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other drainage
and low lying areas.
Some locations that will experience flooding include...
Hoover, Alabaster, Pelham, Helena, Calera, Chelsea, Clanton,
Montevallo, Brent, Columbiana, Centreville, Jemison, Wilsonville,
Goodwater, Rockford, Kellyton, Weogufka, Equality, Stewartville and
Indian Springs Village.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3301 8732 3309 8731 3313 8728 3313 8720
3323 8715 3325 8698 3347 8667 3347 8661
3353 8652 3350 8638 3335 8634 3319 8650
3310 8649 3310 8601 3276 8601 3274 8683
3284 8702 3283 8723 3288 8741 3300 8741
FLASH FLOOD...RADAR INDICATED
$$677
WGUS74 KBMX 191506
FFSBMX
Flash Flood Statement
National Weather Service Birmingham AL
1006 AM CDT Sun Apr 19 2020
ALC117-191514-
/O.CAN.KBMX.FF.W.0013.000000T0000Z-200419T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Shelby AL-
1006 AM CDT Sun Apr 19 2020
...THE FLASH FLOOD WARNING FOR SHELBY COUNTY IS CANCELLED...
Flooding is no longer expected to pose a threat. Please continue to
heed any remaining road closures.
LAT...LON 3302 8702 3305 8688 3307 8688 3307 8661
3305 8661 3302 8655 3302 8652 3310 8649
3310 8601 3276 8601 3275 8632 3277 8634
3275 8634 3274 8683 3284 8702 3283 8723
3286 8732 3287 8732 3288 8741 3300 8741
$$
ALC007-021-037-191600-
/O.CON.KBMX.FF.W.0013.000000T0000Z-200419T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Chilton AL-Bibb AL-Coosa AL-
1006 AM CDT Sun Apr 19 2020
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1100 AM CDT FOR
CHILTON...SOUTHERN BIBB AND COOSA COUNTIES...
At 1004 AM CDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Up to three inches of rain have already
fallen. Additional rainfall amounts up to one inch are possible.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar indicated.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other drainage
and low lying areas.
Some locations that will experience flooding include...
Calera, Clanton, Brent, Centreville, Jemison, Goodwater, Rockford,
Kellyton, Equality, Stewartville, Weogufka, Thorsby, Maplesville,
Dollar, Bradford, Gap Of The Mountain, Strickland Crossroads,
Bentleyville, Hatchet and Verbena.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3302 8702 3305 8688 3307 8688 3307 8661
3305 8661 3302 8655 3302 8652 3310 8649
3310 8601 3276 8601 3275 8632 3277 8634
3275 8634 3274 8683 3284 8702 3283 8723
3286 8732 3287 8732 3288 8741 3300 8741
FLASH FLOOD...RADAR INDICATED
$$The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 18, 9:40 PM CDT | River Flood Warning | BMX | Greene, Hale, Marengo, Pickens, Sumter | 21 days |
| Apr 18, 9:40 PM CDT | River Flood Warning | BMX | Greene, Hale, Marengo, Sumter | 21 days |
| Apr 19, 2:37 AM CDT | Special Weather Statement | BMX | Pickens | 53 min |
| Apr 19, 4:27 AM CDT | Special Weather Statement | BMX | Greene | 48 min |
| Apr 19, 4:53 AM CDT | Severe Thunderstorm Warning | BMX | Greene, Hale, Pickens, Tuscaloosa | 49 min |
| Apr 19, 5:29 AM CDT | Special Weather Statement | BMX | Bibb | 46 min |
| Apr 19, 6:14 AM CDT | Special Weather Statement | BMX | Shelby | 46 min |
| Apr 19, 6:24 AM CDT | Severe Thunderstorm Warning | BMX | Chilton, Coosa, Shelby, Talladega | 36 min |
| Apr 19, 6:46 AM CDT | Severe Thunderstorm Warning | BMX | Coosa, Tallapoosa | 44 min |
| Apr 19, 6:57 AM CDT | Special Weather Statement | BMX | Fayette | 33 min |
| Apr 19, 7:21 AM CDT | Severe Thunderstorm Warning | BMX | Chambers, Lee, Tallapoosa | 54 min |
| Apr 19, 7:41 AM CDT | Special Weather Statement | BMX | Jefferson | 34 min |
| Apr 19, 7:52 AM CDT | Severe Thunderstorm Warning | BMX | Bibb, Jefferson, Shelby, Tuscaloosa | 24 min |
| Apr 19, 8:52 AM CDT | River Flood Warning | BMX | Bibb, Jefferson, Shelby | 29 hr |
| Apr 19, 8:56 AM CDT | River Flood Warning | BMX | Elmore, Montgomery | 4 days |
| Apr 19, 9:03 AM CDT | River Flood Warning | BMX | Dallas, Perry | 3 days |
| Apr 19, 9:13 AM CDT | Flash Flood Warning | BMX | Tallapoosa | 3 hr |
| Apr 19, 10:35 AM CDT | Special Weather Statement | BMX | Pickens | 40 min |
| Apr 19, 10:45 AM CDT | Severe Thunderstorm Warning | BMX | Pickens | 26 min |
| Apr 19, 10:59 AM CDT | Flash Flood Warning | BMX | Bibb, Chilton, Coosa, Shelby, Talladega | 3 hr |
| Apr 19, 11:09 AM CDT | Special Weather Statement | BMX | Tuscaloosa | 36 min |
| Apr 19, 11:42 AM CDT | Areal Flood Advisory | BMX | Bibb, Jefferson, Shelby, Tuscaloosa | 3 hr |
| Apr 19, 12:45 PM CDT | Areal Flood Advisory | BMX | Chambers, Tallapoosa | 4 hr |
| Apr 19, 12:57 PM CDT | Flash Flood Warning | BMX | Barbour, Bullock | 3 hr |
| Apr 19, 1:57 PM CDT | Areal Flood Warning | BMX | Bibb, Chilton, Coosa, Perry, Shelby, Talladega | 6 hr |
| Apr 19, 2:11 PM CDT | Special Weather Statement | BMX | Dallas | 34 min |
| Apr 19, 2:21 PM CDT | Special Weather Statement | BMX | Sumter | 24 min |
| Apr 19, 2:44 PM CDT | Special Weather Statement | BMX | Greene | 31 min |
| Apr 19, 2:53 PM CDT | Areal Flood Advisory | BMX | Bibb, Greene, Jefferson, Pickens, Shelby, Tuscaloosa | 3 hr |
| Apr 19, 3:21 PM CDT | Flash Flood Warning | BMX | Chambers, Tallapoosa | 3 hr |
| Apr 19, 3:48 PM CDT | Special Weather Statement | BMX | Sumter | 27 min |
| Apr 19, 4:22 PM CDT | Special Weather Statement | BMX | Marengo | 23 min |
| Apr 19, 4:48 PM CDT | Severe Thunderstorm Warning | BMX | Marengo | 42 min |
| Apr 19, 5:08 PM CDT | Severe Thunderstorm Warning | BMX | Sumter | 37 min |
| Apr 19, 5:21 PM CDT | Areal Flood Advisory | BMX | Autauga, Elmore, Lee, Macon, Tallapoosa | 3 hr |
| Apr 19, 5:23 PM CDT | Special Weather Statement | BMX | Elmore | 37 min |
| Apr 19, 5:30 PM CDT | Special Weather Statement | BMX | Lee | 45 min |
| Apr 19, 5:40 PM CDT | Special Weather Statement | BMX | Marengo | 35 min |
| Apr 19, 5:55 PM CDT | Tornado Warning | BMX | Marengo | 23 min |
| Apr 19, 6:18 PM CDT | Special Weather Statement | BMX | Lowndes | 42 min |
| Apr 19, 6:35 PM CDT | Severe Thunderstorm Warning | BMX | Lowndes | 40 min |
Nearby
Flash Flood Warnings in Alabama, 2020Every flash flood warning in 2020
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.