Alert archive / Alabama / Flash Flood Warnings in 2012

Flash Flood Warning 36, NWS Birmingham, AL

September 4, 2012Dallas County, Lowndes County, Alabama

NWS Birmingham, AL issued this flash flood warning at Sep 4, 2012, 6:19 AM CDT for Dallas County, Lowndes County, Alabama. It was in force for 6 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
Sep 4, 2012, 6:19 AM CDT (11:19 UTC)
Expired
Sep 4, 2012, 12:30 PM CDT
In force
6 hr
Issued by
NWS Birmingham, AL
Area
Storm-based polygon
Flood severity
None

Counties Dallas County, AL, Lowndes County, AL

What was reported inside it

TimeReportWhereRemark
Sep 4, 7:45 AM CDTFLASH FLOOD5 Nne Fort Deposit, ALPORTION OF CR 37 WAS BRIEFLY CLOSED NEAR THE INTERSECTION OF CR 33 DUE TO WATER COVERING THE ROAD. THE WATER HAS NOW SUBSIDED AND THE ROAD HAS BEEN REOPENED.
Sep 4, 8:00 AM CDTFLASH FLOOD2 W Fort Deposit, ALFLASH FLOODING REPORTED ALONG PORTIONS OF KNIGHTS PLACE RD. WATER REPORTED UP TO SOME HOMES IN THE AREA.
Sep 4, 8:00 AM CDTFLASH FLOOD4 E Fort Deposit, ALPORTION OF COUNTY ROAD 79 COVERED BY WATER. VERY DIFFICULT TO PASS.
Sep 4, 11:00 AM CDTFLASH FLOOD5 Nnw Ridgeville, ALSTATE ROAD 21 CLOSED DUE TO WATER OVER THE ROAD.

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, 11.3 hours before the alert went out and 127 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.

Skew-T log-pSkew-T log-p diagram, Birmingham, AL at 00:00Z on 2012-09-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1069 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 00:00Z on 2012-09-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 124 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1069 J/kg
Mixed-layer CIN
-48 J/kg
Mixed-layer LCL
747 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
124 m²/s²
0-3 km storm-relative helicity
238 m²/s²
Significant tornado parameter
0.6
Supercell composite
3.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

640 
WGUS54 KBMX 041119
FFWBMX
ALC047-085-041430-
/O.NEW.KBMX.FF.W.0036.120904T1119Z-120904T1430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
619 AM CDT TUE SEP 4 2012

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  LOWNDES COUNTY IN SOUTH CENTRAL ALABAMA...
  SOUTHEASTERN DALLAS COUNTY IN SOUTH CENTRAL ALABAMA...

* UNTIL 930 AM CDT

* AT 619 AM CDT...NATIONAL WEATHER SERVICE INDICATED SLOW MOVING   
THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. TWO 
TO FOUR INCHES OF RAIN HAS FALLEN ACROSS THE AREA...AND AN 
ADDITIONAL ONE TO TWO INCHES IS POSSIBLE DURING THE NEXT HOURL

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...FORT
  DEPOSIT...HAYNEVILLE...MOSSES...BEECHWOOD...GORDONVILLE...LOGAN AND
  LOWNDES COUNTY AIRPORT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...
COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND
OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING.

&&

TO REPORT SEVERE WEATHER...
CALL 1-800-856-0758 OR TWEET YOUR REPORT USING HASHTAG ALWX

LAT...LON 3196 8686 3204 8686 3204 8694 3225 8695
      3225 8641 3205 8641 3204 8639 3197 8640
      3196 8644 3196 8685

$$
3 follow-up statements
247 
WGUS74 KBMX 041327
FFSBMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
827 AM CDT TUE SEP 4 2012

ALC047-085-041430-
/O.CON.KBMX.FF.W.0036.000000T0000Z-120904T1430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DALLAS AL-LOWNDES AL-
827 AM CDT TUE SEP 4 2012

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR LOWNDES AND SOUTHEASTERN
DALLAS COUNTIES UNTIL 930 AM CDT...

AT 823 AM CDT...EMERGENCY MANAGEMENT REPORTED FLOODING OF SOME 
STREETS AND ROADWAYS IN THE WARNED AREA. A PORTION OF COUNTY ROAD 37 
NEAR THE INTERSECTION WITH COUNTY ROAD 33 WAS CLOSED EARLIER THIS 
MORNING BUT HAS BEEN REOPENED.  SOME FLOODING HAS ALSO BEEN REPORTED 
ON KNIGHTS PLACE ROAD JUST OFF COUNTY ROAD 45...AND COUNTY ROAD 79 
WAS REPORTED TO BE COVERED WITH WATER THIS MORNING.

THUNDERSTORMS ARE CONTINUING TO MOVE SOUTHEAST ACROSS THE AREA...AND 
WILL LIKELY PRODUCE ANOTHER ONE TO TWO INCHES IN LOCALIZED AREAS 
DURING THE NEXT TWO HOURS.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
FORT DEPOSIT...HAYNEVILLE...MOSSES...BEECHWOOD...GORDONVILLE...LOGAN
AND LOWNDES 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.

&&

LAT...LON 3196 8686 3204 8686 3204 8694 3225 8695
      3225 8641 3205 8641 3204 8639 3197 8640
      3196 8644 3196 8685

$$
043 
WGUS54 KBMX 041423
FFWBMX
ALC047-085-041730-
/O.EXT.KBMX.FF.W.0036.000000T0000Z-120904T1730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
923 AM CDT TUE SEP 4 2012

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  LOWNDES COUNTY IN SOUTH CENTRAL ALABAMA...
  SOUTHEASTERN DALLAS COUNTY IN SOUTH CENTRAL ALABAMA...

* UNTIL 1230 PM CDT

* AT 921 AM CDT...THUNDERSTORMS WITH VERY HEAVY RAINFALL CONTINUED 
TO MOVE SOUTHEAST ACROSS THE AREA.  THIS RAIN WILL BE FALLING ON 
AREAS ALREADY EXPERIENCING FLOODING FROM RAINFALL EARLIER THIS 
MORNING. ADDITIONAL RAINFALL WILL CAUSE FLOODING TO CONTINUE OR 
POSSIBLY WORSEN DURING THE NEXT ONE TO TWO HOURS.   

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...FORT
  DEPOSIT...HAYNEVILLE...MOSSES...BEECHWOOD...GORDONVILLE...LOGAN AND
  LOWNDES 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 OR TWEET YOUR REPORT USING HASHTAG ALWX

LAT...LON 3196 8686 3204 8686 3204 8694 3225 8695
      3225 8641 3205 8641 3204 8639 3197 8640
      3196 8644 3196 8685

$$
256 
WGUS74 KBMX 041622
FFSBMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1122 AM CDT TUE SEP 4 2012

ALC047-085-041730-
/O.CON.KBMX.FF.W.0036.000000T0000Z-120904T1730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DALLAS AL-LOWNDES AL-
1122 AM CDT TUE SEP 4 2012

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR LOWNDES AND SOUTHEASTERN
DALLAS COUNTIES UNTIL 1230 PM CDT...

AT 1119 AM CDT...STATE HIGHWAY 21 WAS REPORTED TO BE FLOODED NEAR 
THE WILCOX COUNTY LINE.  OTHER REPORTS OF STREET AND ROAD FLOODING 
ACROSS THE AREA HAVE BEEN RECEIVED THIS MORNING. MODERATE TO BRIEFLY 
HEAVY RAINFALL CONTINUES TO MOVE SOUTHEAST ACROSS THE AREA...AND 
THIS WILL ONLY AGGRAVATE FLOODING THAT IS CURRENTLY OCCURRING.

SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...FORT
DEPOSIT...HAYNEVILLE...MOSSES...BEECHWOOD...GORDONVILLE...LOGAN AND
LOWNDES COUNTY AIRPORT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLOODING OF SMALL CREEKS
AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS
AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW LYING
AREAS ARE ALSO SUBJECT TO FLOODING.

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 3196 8686 3204 8686 3204 8694 3225 8695
      3225 8641 3205 8641 3204 8639 3197 8640
      3196 8644 3196 8685

$$

The office that day

Everything else NWS Birmingham, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 3, 7:01 PM CDTSpecial Weather StatementBMXPike59 min
Sep 3, 7:06 PM CDTSpecial Weather StatementBMXPerry39 min
Sep 3, 7:20 PM CDTAreal Flood AdvisoryBMXJefferson115 min
Sep 3, 7:23 PM CDTSpecial Weather StatementBMXPickens52 min
Sep 3, 7:24 PM CDTSpecial Weather StatementBMXTuscaloosa51 min
Sep 3, 7:38 PM CDTSevere Thunderstorm WarningBMXPickens52 min
Sep 3, 8:01 PM CDTSpecial Weather StatementBMXHale44 min
Sep 3, 8:03 PM CDTSpecial Weather StatementBMXBarbour42 min
Sep 3, 8:09 PM CDTSpecial Weather StatementBMXWalker36 min
Sep 3, 8:24 PM CDTSpecial Weather StatementBMXGreene66 min
Sep 3, 8:30 PM CDTAreal Flood AdvisoryBMXGreene, Pickens3 hr
Sep 3, 8:36 PM CDTSpecial Weather StatementBMXPickens54 min
Sep 3, 8:59 PM CDTSevere Thunderstorm WarningBMXPickens31 min
Sep 3, 9:03 PM CDTSevere Thunderstorm WarningBMXGreene42 min
Sep 3, 9:15 PM CDTAreal Flood WarningBMXHale, Perry3 hr
Sep 3, 9:18 PM CDTFlash Flood WarningBMXPickens3 hr
Sep 3, 9:30 PM CDTSevere Thunderstorm WarningBMXPickens60 min
Sep 3, 9:49 PM CDTSpecial Weather StatementBMXGreene41 min
Sep 3, 9:51 PM CDTSpecial Weather StatementBMXCherokee39 min
Sep 3, 9:56 PM CDTFlash Flood WarningBMXTuscaloosa3 hr
Sep 3, 10:40 PM CDTSpecial Weather StatementBMXGreene65 min
Sep 3, 10:52 PM CDTSevere Thunderstorm WarningBMXGreene, Sumter53 min
Sep 3, 10:58 PM CDTTornado WarningBMXGreene, Sumter11 min
Sep 3, 11:51 PM CDTSpecial Weather StatementBMXSumter39 min
Sep 4, 4:36 AM CDTSpecial Weather StatementBMXLowndes24 min
Sep 4, 6:08 AM CDTAreal Flood AdvisoryBMXAutauga, Lowndes3 hr
Sep 4, 6:30 AM CDTFlash Flood WarningBMXBibb, Hale, Perry, Tuscaloosa3 hr
Sep 4, 6:50 AM CDTAreal Flood AdvisoryBMXAutauga, Chilton, Dallas, Perry3 hr
Sep 4, 7:03 AM CDTAreal Flood AdvisoryBMXTuscaloosa3 hr
Sep 4, 7:22 AM CDTFlash Flood WarningBMXAutauga, Dallas, Lowndes, Perry3 hr
Sep 4, 9:02 AM CDTFlash Flood WarningBMXDallas, Perry3 hr
Sep 4, 9:28 AM CDTAreal Flood WarningBMXBibb, Chilton, Hale, Perry3 hr
Sep 4, 9:32 AM CDTSpecial Weather StatementBMXDallas43 min
Sep 4, 10:28 AM CDTFlash Flood Warning EmergencyBMXAutauga, Dallas, Lowndes, Perry3 hr
Sep 4, 11:57 AM CDTAreal Flood WarningBMXDallas3 hr
Sep 4, 12:27 PM CDTAreal Flood WarningBMXDallas, Lowndes3 hr
Sep 4, 3:14 PM CDTSpecial Weather StatementBMXGreene61 min
Sep 4, 3:51 PM CDTAreal Flood AdvisoryBMXGreene, Hale3 hr
Sep 4, 4:42 PM CDTAreal Flood AdvisoryBMXMarengo3 hr
Sep 4, 4:53 PM CDTSpecial Weather StatementBMXMarengo52 min
Sep 4, 5:41 PM CDTSpecial Weather StatementBMXMarengo49 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.