Alert archive / Alabama / Flash Flood Warnings in 2018
Flash Flood Warning 4, NWS Birmingham, AL
NWS Birmingham, AL issued this flash flood warning at May 16, 2018, 7:18 PM CDT for 4 counties in Alabama. It was in force for 117 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- May 16, 2018, 7:18 PM CDT (00:18 UTC)
- Expired
- May 16, 2018, 9:15 PM CDT
- In force
- 117 min
- Issued by
- NWS Birmingham, AL
- Area
- Storm-based polygon
- Flood severity
- None
Counties Greene County, AL, Hale County, AL, Marengo County, AL, Perry County, AL
The radar
The Birmingham radar (KBMX), 123 km from the middle of the area, began a volume at 00:21 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 nearest sounding before it
Birmingham, AL (KBMX), launched 00:00Z, 0.3 hours before the alert went out and 123 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
- 313 J/kg
- Mixed-layer CIN
- -33 J/kg
- Mixed-layer LCL
- 1604 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 24 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
951
WGUS54 KBMX 170018
FFWBMX
ALC063-065-091-105-170215-
/O.NEW.KBMX.FF.W.0004.180517T0018Z-180517T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Birmingham AL
718 PM CDT WED MAY 16 2018
The National Weather Service in Birmingham has issued a
* Flash Flood Warning for...
Marengo County in southwestern Alabama...
Southwestern Perry County in central Alabama...
Southeastern Greene County in west central Alabama...
Southwestern Hale County in west central Alabama...
* Until 915 PM CDT.
* At 717 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Flash flooding is expected to
begin shortly. Two to three inches of rain has fallen already and
an additional inch or so is possible. This will make flash
flooding likely.
* Some locations that will experience flooding include...
Demopolis, Linden, Uniontown, Jefferson, Forkland, Thomaston,
Faunsdale, Dayton, Consul, Arcola, Freddie Jones Field, Pin Hook,
Magnolia, Chickasaw State Park, U.S. 80 and AL 28, Old Spring Hill,
Carleys, Octagon, Gallion and Calvary.
LAT...LON 3246 8796 3252 8791 3252 8784 3259 8790
3261 8788 3260 8784 3261 8784 3263 8791
3264 8789 3264 8782 3245 8742 3231 8742
3231 8747 3227 8747 3225 8752 3213 8752
3213 8762 3202 8762 3243 8804
$$
75The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 16, 7:10 PM CDT | Areal Flood Advisory | BMX | Blount, Jefferson | 2 hr |
| May 16, 8:12 PM CDT | Special Weather Statement | BMX | Bibb | 48 min |
| May 16, 8:26 PM CDT | Areal Flood Advisory | BMX | Blount, Etowah, St. Clair | 2 hr |
| May 16, 9:48 PM CDT | Areal Flood Advisory | BMX | Bibb, Jefferson, St. Clair, Shelby, Talladega, Tuscaloosa | 117 min |
| May 16, 10:34 PM CDT | Areal Flood Warning | BMX | Greene, Hale, Pickens, Tuscaloosa | 116 min |
| May 17, 11:23 AM CDT | Special Weather Statement | BMX | Greene | 37 min |
| May 17, 5:42 PM CDT | Special Weather Statement | BMX | Pike | 33 min |
| May 17, 5:44 PM CDT | Special Weather Statement | BMX | Pike | 31 min |
| May 17, 6:10 PM CDT | Areal Flood Advisory | BMX | Bullock, Pike | 2 hr |
| May 17, 6:14 PM CDT | Special Weather Statement | BMX | Pike | 31 min |
| May 17, 6:39 PM CDT | Special Weather Statement | BMX | Barbour, Pike | 36 min |
Nearby
Flash Flood Warnings in Alabama, 2018Every flash flood warning in 2018
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.