Alert archive / Alabama / Flash Flood Warnings in 2012
Flash Flood Warning 19, NWS Birmingham, AL
NWS Birmingham, AL issued this flash flood warning at Jul 27, 2012, 7:39 PM CDT for Lamar County, Alabama. It was in force for 3 hr. 4 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
- Jul 27, 2012, 7:39 PM CDT (00:39 UTC)
- Expired
- Jul 27, 2012, 10:30 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 00:38 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 |
|---|---|---|---|
| Jul 27, 7:42 PM CDT | FLASH FLOOD | Sulligent, AL | HIGHWAY 278 FLOODED IN SULIGENT. |
| Jul 27, 8:00 PM CDT | FLASH FLOOD | Vernon, AL | WATER UP TO 18 INCHES DEEP IS COVERING ROADWAYS IN AND AROUND VERNON, INCLUDING HIGHWAY 18. ALSO, ADERBEEN RD AND MCNEES CROSSING RD WEST OF VERNON HAVE BEEN CLOSED. |
| Jul 27, 8:00 PM CDT | HEAVY RAIN 2 | 1 Sw Vernon, AL | ALSO PEA SIZED HAIL AT TIME OF REPORT. |
| Jul 27, 10:16 PM CDT | FLASH FLOOD | Vernon, AL | TEN ROADS WERE REPORTED UNDER WATER THROUGHOUT THE CITY OF VERNON...WITH 7 ROADWAYS STILL CLOSED AT THIS TIME. WATER IS FINALLY STARTING TO RECEDE. |
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, 0.7 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
- 694 J/kg
- Mixed-layer CIN
- -80 J/kg
- Mixed-layer LCL
- 1061 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -37 m²/s²
- 0-3 km storm-relative helicity
- 8 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
826 WGUS54 KBMX 280039 FFWBMX ALC075-280330- /O.NEW.KBMX.FF.W.0019.120728T0039Z-120728T0330Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE BIRMINGHAM AL 739 PM CDT FRI JUL 27 2012 THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A * FLASH FLOOD WARNING FOR... LAMAR COUNTY IN WEST CENTRAL ALABAMA... * UNTIL 1030 PM CDT * AT 733 PM CDT...NATIONAL WEATHER SERVICE INDICATED SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS CENTRAL LAMAR COUNTY. UP TO 2 INCHES OF RAINFALL IS EXPECTED IN THE NEXT HOUR ACROSS CENTRAL LAMAR COUNTY...WITH UP TO AN ADDITIONAL INCH IN THE NEXT HOUR. THE PRIMARY FLASH FLOOD CONCERNS WILL BE IN THE CITY OF VERNON...AND THE YELLOW CREEK DRAINAGE BASIN...NEAR ALABAMA HIGHWAY 18 AND ALABAMA HIGHWAY 17. ALSO...FLASH FLOODING WILL BE POSSIBLE ACROSS ALL OF CENTRAL LAMAR COUNTY. * 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...KENNEDY AND LAMAR COUNTY AIRPORT. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS IS A DANGEROUS SITUATION. RAINFALL FROM PERSISTENT STORMS WILL PRODUCE FLOODING IN LOW LYING AREAS AND ALONG STREETS. MANY ROADS COULD BE CLOSED DUE TO HIGH WATER AND DRIVING IS NOT RECOMMENDED DURING THE NEXT SEVERAL HOURS. TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN BIRMINGHAM. && TO REPORT SEVERE WEATHER... CALL 1-800-856-0758 OR TWEET YOUR REPORT USING HASHTAG ALWX LAT...LON 3403 8822 3402 8795 3357 8795 3359 8827 $$ 56
1 follow-up statement
426 WGUS74 KBMX 280139 FFSBMX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 839 PM CDT FRI JUL 27 2012 ALC075-280330- /O.CON.KBMX.FF.W.0019.000000T0000Z-120728T0330Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ LAMAR AL- 839 PM CDT FRI JUL 27 2012 ...FLASH FLOOD WARNING REMAINS IN EFFECT FOR LAMAR COUNTY UNTIL 1030 PM CDT... AT 834 PM CDT...EMERGENCY MANAGEMENT REPORTED THAT FLASH FLOODING WAS OCCURRING IN THE CITY OF VERNON...WITH ALABAMA HIGHWAY 18 COVERED IN 18 INCHES OF WATER...AND OTHER SECONDARY ROADWAYS WITHIN THE CITY FLOODED AND CLOSED OFF TO TRAFFIC. SOME LOCATIONS THAT WILL EXPERIENCE ONGOING FLASH FLOODING INCLUDE...SULLIGENT...VERNON...BEAVERTON...BEDFORD...BLOOMING GROVE...CREWS...DETROIT...KENNEDY AND LAMAR COUNTY AIRPORT. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS IS A VERY DANGEROUS AND LIFE THREATENING FLOODING SITUATION. YOU SHOULD NOT ATTEMPT TO TRAVEL. STAY HOME UNLESS YOU ARE FORCED TO EVACUATE TO HIGHER GROUND. BE AWARE OF TRAVELING ACROSS FLOODED ROADWAYS AT NIGHT...WHICH CAN BE VERY DANGEROUS WHEN ENCOUNTERING FLOODED ROADWAYS. REMEMBER...TURN AROUND...DON'T DROWN! REPORT FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY SO THAT THEY MAY TAKE APPROPRIATE ACTION TO CLOSE FLOODED ROADWAYS. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN BIRMINGHAM. && LAT...LON 3403 8822 3402 8795 3357 8795 3359 8827 $$ 56
The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 7:02 PM CDT | Areal Flood Advisory | BMX | Lamar | 118 min |
| Jul 27, 7:12 PM CDT | Areal Flood Advisory | BMX | Russell | 63 min |
| Jul 27, 7:23 PM CDT | Severe Thunderstorm Warning | BMX | Lamar | 37 min |
| Jul 27, 7:57 PM CDT | Severe Thunderstorm Warning | BMX | Lamar, Pickens | 48 min |
| Jul 27, 8:27 PM CDT | Special Weather Statement | BMX | Pickens | 48 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.