Alert archive / Alabama / Flash Flood Warnings in 2011
Flash Flood Warning 64, NWS Birmingham, AL
NWS Birmingham, AL issued this flash flood warning at Sep 20, 2011, 9:02 PM CDT for Chambers County, Alabama. It was in force for 2 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
- Sep 20, 2011, 9:02 PM CDT (02:02 UTC)
- Expired
- Sep 20, 2011, 11:03 PM CDT
- In force
- 2 hr
- Issued by
- NWS Birmingham, AL
- Area
- Storm-based polygon
- Flood severity
- None
County Chambers County, AL
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 20, 9:20 PM CDT | FLASH FLOOD | Lanett, AL | SHOPPING CENTER PARKING LOT ON U.S. HIGHWAY 29 ON THE STATE LINE WAS REPORTED AS FLOODED. CARS WERE BEING STALLED OUT DUE TO THE HIGH WATER. |
| Sep 20, 9:47 PM CDT | FLASH FLOOD | 1 Ne Lanett, AL | WATER REPORTED FLOWING UNDERNEATH DOORWAYS OF BUSINESSES ALONG U.S. HIGHWAY 29 IN WEST POINT DUE TO FLOODING. |
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 00:00Z, 2.0 hours before the alert went out and 97 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
- 639 J/kg
- Mixed-layer CIN
- -30 J/kg
- Mixed-layer LCL
- 831 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 76 m²/s²
- 0-3 km storm-relative helicity
- 89 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.0
The text
As transmitted, in the capitals the NWS used until 2016.
604
WGUS54 KBMX 210202
FFWBMX
ALC017-210500-
/O.NEW.KBMX.FF.W.0064.110921T0202Z-110921T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
902 PM CDT TUE SEP 20 2011
THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHEASTERN CHAMBERS COUNTY IN EAST CENTRAL ALABAMA...
* UNTIL MIDNIGHT CDT
* AT 900 PM CDT...NATIONAL WEATHER SERVICE INDICATED SLOW MOVING
THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS SOUTHEASTERN CHAMBERS
COUNTY NEAR THE TOWNS OF LANETT AND VALLEY. FLOODING ALONG TANYARD
BRANCH IN LANETT...AND THE CITY OF VALLEY IS OF MOST CONCERN.
* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
LANETT...VALLEY...CHAMBERS COUNTY LAKE...CUSSETA...FAIRFAX...
HUGULEY...LAKEVIEW AND OAK BOWERY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS SITUATION. RAINFALL FROM PERSISTENT RAINBANDS
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.
&&
TO REPORT SEVERE WEATHER...
CALL 1-800-856-0758.
LAT...LON 3275 8514 3275 8528 3273 8529 3273 8532
3274 8543 3273 8544 3273 8545 3277 8547
3295 8520 3286 8518 3285 8515 3281 8516
3278 8513
$$
562 follow-up statements
877
WGUS74 KBMX 210332
FFSBMX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1032 PM CDT TUE SEP 20 2011
ALC017-210500-
/O.CON.KBMX.FF.W.0064.000000T0000Z-110921T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CHAMBERS AL-
1032 PM CDT TUE SEP 20 2011
...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SOUTHEASTERN CHAMBERS
COUNTY UNTIL MIDNIGHT CDT...
AT 1028 PM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED FLOODING
ALONG HIGHWAY 29 IN LANETT AND WEST POINT DUE TO HEAVY RAINFALL.
CARS WERE BEING STALLED DUE TO HIGH WATER...AND WATER WAS BEGINNING
TO FLOW UNDER THE DOORWAYS OF LOCAL BUSINESSES. ALTHOUGH RAINFALL
RATES HAVE DIMINISHED...FLOODING WILL STILL BE A PROBLEM THROUGHOUT
THE WARNED AREA UNTIL THE WATER RECEEDS.
RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
LANETT...VALLEY...CHAMBERS COUNTY LAKE...CUSSETA...FAIRFAX...
HUGULEY...LAKEVIEW AND OAK BOWERY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS SITUATION. RAINFALL FROM PERSISTENT RAINBANDS
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.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED...ACT QUICKLY. DO NOT
ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND. DO NOT
STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
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 3275 8514 3275 8528 3273 8529 3273 8532
3274 8543 3273 8544 3273 8545 3277 8547
3295 8520 3286 8518 3285 8515 3281 8516
3278 8513
$$
56653
WGUS74 KBMX 210403
FFSBMX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1103 PM CDT TUE SEP 20 2011
ALC017-210418-
/O.CAN.KBMX.FF.W.0064.000000T0000Z-110921T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CHAMBERS AL-
1103 PM CDT TUE SEP 20 2011
...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR SOUTHEASTERN
CHAMBERS COUNTY IS CANCELLED...
EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING TO
RECEDE...ENDING THE FLOOD THREAT. IF FLOODING HAS BEEN OBSERVED...
PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.
LAT...LON 3275 8514 3275 8528 3273 8529 3273 8532
3274 8543 3273 8544 3273 8545 3277 8547
3295 8520 3286 8518 3285 8515 3281 8516
3278 8513
$$
56The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 20, 7:23 PM CDT | Special Weather Statement | BMX | Chambers, Lee | 52 min |
| Sep 20, 8:04 PM CDT | Areal Flood Advisory | BMX | Chambers, Lee | 116 min |
| Sep 20, 8:41 PM CDT | Special Weather Statement | BMX | Lee | 49 min |
| Sep 20, 11:34 PM CDT | Areal Flood Advisory | BMX | Russell | 116 min |
| Sep 21, 12:27 AM CDT | Flash Flood Warning | BMX | Chambers, Lee, Russell | 3 hr |
| Sep 21, 6:31 PM CDT | Special Weather Statement | BMX | Montgomery | 29 min |
Nearby
Flash Flood Warnings in Alabama, 2011Every flash flood warning in 2011
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.