Alert archive / Alabama / Flash Flood Warnings in 2012
Flash Flood Warning 31, NWS Birmingham, AL
NWS Birmingham, AL issued this flash flood warning at Aug 17, 2012, 3:18 AM CDT for Lamar County, Alabama. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 17, 2012, 3:18 AM CDT (08:18 UTC)
- Expired
- Aug 17, 2012, 6:30 AM CDT
- In force
- 3 hr
- Issued by
- NWS Birmingham, AL
- Area
- Storm-based polygon
- Flood severity
- None
County Lamar County, AL
The radar
The Columbus AFB radar (KGWX), 23 km from the middle of the area, began a volume at 08:21 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, 8.3 hours before the alert went out and 144 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
- 1257 J/kg
- Mixed-layer CIN
- -32 J/kg
- Mixed-layer LCL
- 1382 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -11 m²/s²
- 0-3 km storm-relative helicity
- 60 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
566
WGUS54 KBMX 170818
FFWBMX
ALC075-171130-
/O.NEW.KBMX.FF.W.0031.120817T0818Z-120817T1130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
318 AM CDT FRI AUG 17 2012
THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A
* FLASH FLOOD WARNING FOR...
LAMAR COUNTY IN WEST CENTRAL ALABAMA...
* UNTIL 630 AM CDT
* AT 316 AM CDT...NATIONAL WEATHER SERVICE INDICATED SLOW MOVING
THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. ONE
TO TWO INCHES OF RAIN ARE POSSIBLE THROUGH 630 AM. THE TYPICAL
TROUBLE SPOTS ARE RIVER ROAD NEAR SULLIGENT...OAK ROAD NEAR
DETROIT...HAWKINGS HOLLOW ROAD NEAR HENSON SPRINGS...AND HIGHWAY 17
IN VERNON.
* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
MILLPORT...SULLIGENT...VERNON...BEAVERTON...BEDFORD...BLOOMING
GROVE...CREWS...DETROIT...KENNEDY AND LAMAR COUNTY AIRPORT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.
&&
TO REPORT SEVERE WEATHER...
CALL 1-800-856-0758.
LAT...LON 3405 8821 3405 8799 3402 8799 3402 8795
3353 8794 3353 8828
$$
75The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 17, 1:59 AM CDT | Special Weather Statement | BMX | Cherokee | 46 min |
| Aug 17, 2:03 AM CDT | Special Weather Statement | BMX | Marion | 42 min |
| Aug 17, 2:39 AM CDT | Special Weather Statement | BMX | Winston | 51 min |
| Aug 17, 2:42 AM CDT | Special Weather Statement | BMX | Marion | 48 min |
| Aug 17, 4:10 AM CDT | Special Weather Statement | BMX | Walker | 50 min |
| Aug 17, 4:13 AM CDT | Special Weather Statement | BMX | Pickens | 32 min |
| Aug 17, 4:33 AM CDT | Special Weather Statement | BMX | Pickens | 42 min |
| Aug 17, 4:37 AM CDT | Special Weather Statement | BMX | Tuscaloosa | 38 min |
| Aug 17, 5:54 AM CDT | Special Weather Statement | BMX | Sumter | 51 min |
Nearby
Flash Flood Warnings in Alabama, 2012Every flash flood warning in 2012
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.