Alert archive / Alabama / Flash Flood Warnings in 2012
Flash Flood Warning 28, NWS Birmingham, AL
NWS Birmingham, AL issued this flash flood warning at Aug 6, 2012, 9:56 AM CDT for Lamar County, 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
- Aug 6, 2012, 9:56 AM CDT (14:56 UTC)
- Expired
- Aug 6, 2012, 1:00 PM 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), 20 km from the middle of the area, began a volume at 14:59 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 |
|---|---|---|---|
| Aug 6, 10:12 AM CDT | FLASH FLOOD | Sulligent, AL | HWY 278 IS CLOSED IN SULLIGENT |
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 12:00Z, 2.9 hours before the alert went out and 145 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
- 532 J/kg
- Mixed-layer CIN
- -62 J/kg
- Mixed-layer LCL
- 739 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- 1 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
767 WGUS54 KBMX 061456 FFWBMX ALC075-061800- /O.NEW.KBMX.FF.W.0028.120806T1456Z-120806T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE BIRMINGHAM AL 956 AM CDT MON AUG 6 2012 THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A * FLASH FLOOD WARNING FOR... LAMAR COUNTY IN WEST CENTRAL ALABAMA... * UNTIL 100 PM CDT * AT 956 AM CDT...NATIONAL WEATHER SERVICE INDICATED A VERY SLOW MOVING CLUSTER OF THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. 2 INCHES OF RAIN COULD FALL IN LESS THAN AN HOUR. * RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... SULLIGENT...VERNON...BEAVERTON...BEDFORD...BLOOMING GROVE... CREWS...DETROIT AND LAMAR COUNTY AIRPORT. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS IS A DANGEROUS SITUATION. RAINFALL FROM PERSISTENT THUNDERSTORMS WILL PRODUCE FLOODING IN LOW LYING AREAS AND ALONG STREETS. MANY ROADS WILL BE CLOSED DUE TO HIGH WATER AND DRIVING IS NOT RECOMMENDED DURING THE NEXT SEVERAL HOURS. EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS. 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 OR TWEET YOUR REPORT USING HASHTAG ALWX LAT...LON 3404 8821 3402 8795 3360 8795 3361 8827 $$ 27
1 follow-up statement
191 WGUS74 KBMX 061514 FFSBMX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 1014 AM CDT MON AUG 6 2012 ALC075-061800- /O.CON.KBMX.FF.W.0028.000000T0000Z-120806T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ LAMAR AL- 1014 AM CDT MON AUG 6 2012 ...FLASH FLOOD WARNING REMAINS IN EFFECT FOR LAMAR COUNTY UNTIL 100 PM CDT... AT 1012 AM CDT...THE NATIONAL WEATHER SERVICE AND EMERGENCY MANAGEMENT REPORTED THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. 1 TO 2 INCHES HAVE ALREADY FALLEN ACROSS THE NORTHERN HALF OF LAMAR COUNTY CAUSING ROAD CLOSURES IN SULLIGENT. RUNOFF FROM THIS EXCESSIVE RAINFALL IS CAUSING FLASH FLOODING TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE... SULLIGENT...VERNON...BEAVERTON...BEDFORD...BLOOMING GROVE... CREWS...DETROIT AND LAMAR COUNTY AIRPORT. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS IS A DANGEROUS SITUATION. RAINFALL FROM PERSISTENT THUNDERSTORMS WILL PRODUCE FLOODING IN LOW LYING AREAS AND ALONG STREETS. MANY ROADS WILL BE CLOSED DUE TO HIGH WATER AND DRIVING IS NOT RECOMMENDED DURING THE NEXT SEVERAL HOURS. EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE MINOR FLOODING OF SMALL CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. && LAT...LON 3404 8821 3402 8795 3360 8795 3361 8827 $$ 27
The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 6, 5:42 PM CDT | Areal Flood Advisory | BMX | Jefferson | 2 hr |
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.