Alert archive / Alabama / Flash Flood Warnings in 2011

Flash Flood Warning 49, NWS Birmingham, AL

September 5, 20114 counties in Alabama

NWS Birmingham, AL issued this flash flood warning at Sep 5, 2011, 7:16 AM CDT for 4 counties in Alabama. It was in force for 8 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 5, 2011, 7:16 AM CDT (12:16 UTC)
Expired
Sep 5, 2011, 3:00 PM CDT
In force
8 hr
Issued by
NWS Birmingham, AL
Area
Storm-based polygon
Flood severity
None

Counties Fayette County, AL, Marion County, AL, Walker County, AL, Winston County, AL

The radar

The Columbus AFB radar (KGWX), 85 km from the middle of the area, began a volume at 12:17 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

TimeReportWhereRemark
Sep 5, 2:00 PM CDTFLASH FLOODOakman, ALHIGHWAY 69 IN OAKMAN WAS TEMPORARILY IMPASSABLE DUE TO FLOODING
Sep 5, 2:45 PM CDTFLASH FLOODCordova, ALHUNTING CLUB ROAD WAS WASHED OUT.

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, 0.3 hours before the alert went out and 95 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 12:00Z on 2011-09-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 371 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 12:00Z on 2011-09-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 238 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
371 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
471 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
238 m²/s²
0-3 km storm-relative helicity
277 m²/s²
Significant tornado parameter
0.4
Supercell composite
2.7

Open this sounding in Storm Lab

The text

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

128 
WGUS54 KBMX 051216
FFWBMX
ALC057-093-127-133-051600-
/O.NEW.KBMX.FF.W.0049.110905T1216Z-110905T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
716 AM CDT MON SEP 5 2011

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  FAYETTE COUNTY IN WEST CENTRAL ALABAMA...
  MARION COUNTY IN NORTHWEST ALABAMA...
  WALKER COUNTY IN ALABAMA...
  WINSTON COUNTY IN NORTHWEST ALABAMA...

* UNTIL 1100 AM CDT

* AT 714 AM CDT...NATIONAL WEATHER SERVICE INDICATED AN AREA OF 
VERY   HEAVY RAINFALL CONTINUED TO SPREAD ACROSS THE WARNED AREA. 
RAINFALL OF ONE TO THREE INCHES HAS FALLEN OVER MUCH OF THE AREA AND 
AN ADDITIONAL TWO TO THREE INCHES WITH LOCALLY HIGHER AMOUNTS IS 
POSSIBLE DURING THE NEXT TWO TO THREE HOURS.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  ARLEY...CARBON HILL...CORDOVA...DORA...FAYETTE...HALEYVILLE...
  HAMILTON...JASPER...LYNN...SUMITON...WINFIELD...ADDISON...
  ASHBANK...ASHCRAFT CORNER...ASHRIDGE...BANKSTON...BELK...BELOIT...
  BERRY...BLUFF...BOLEY SPRINGS...BRILLIANT...BRINN...BRUSHY LAKE...
  BURNWELL...CORINTH REC AREA...CURRY...DOUBLE SPRINGS...ELDRIDGE AND
  FALLS CITY.


TO REPORT SEVERE WEATHER...
CALL 1-800-856-0758.

LAT...LON 3430 8711 3399 8710 3397 8713 3390 8708
      3390 8701 3384 8696 3377 8703 3366 8706
      3362 8717 3352 8725 3352 8732 3359 8732
      3361 8763 3352 8767 3353 8794 3402 8795
      3405 8799 3406 8821 3432 8818

$$

41
2 follow-up statements
065 
WGUS74 KBMX 051413
FFSBMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
913 AM CDT MON SEP 5 2011

ALC057-093-127-133-051600-
/O.CON.KBMX.FF.W.0049.000000T0000Z-110905T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FAYETTE AL-MARION AL-WALKER AL-WINSTON AL-
913 AM CDT MON SEP 5 2011

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR WINSTON...WALKER...
MARION AND FAYETTE COUNTIES UNTIL 1100 AM CDT...

AT 909 AM CDT...MODERATE TO HEAVY RAIN CONTINUED TO SPREAD ACROSS 
THE AREA.  ONE TO THREE INCHES OF RAIN HAS FALLEN DURING THE PAST 
FEW HOURS...AND AN ADDITIONAL ONE TO TWO INCHES IS POSSIBLE DURING 
THE NEXT TWO HOURS.  

RUNOFF FROM THIS RAINFALL WILL CAUSE FLASH FLOODING TO 
OCCUR...ESPECIALLY IN LOW LYING AREAS PRONE TO FLOODING AS WELL AS 
ROADS LOCATED CLOSE TO SMALL CREEKS AND STREAMS IN THE AREA. SOME 
LOCATIONS THAT WILL LIKELY EXPERIENCE FLASH FLOODING INCLUDE... 
ARLEY...CARBON HILL...CORDOVA...FAYETTE...HALEYVILLE... HAMILTON... 
JASPER......SUMITON...WINFIELD...ADDISON...BERRY......BRILLIANT... 
AND DOUBLE SPRINGS.

DO NOT ATTEMPT TO CROSS FLOODED ROADWAYS.  ONLY SIX INCHES OF 
FLOWING WATER CAN SWEEP A PERSON OFF THEIR FEET.  TURN AROUND DON'T 
DROWN.


LAT...LON 3430 8711 3399 8710 3397 8713 3390 8708
      3390 8701 3384 8696 3377 8703 3366 8706
      3362 8717 3352 8725 3352 8732 3359 8732
      3361 8763 3352 8767 3353 8794 3402 8795
      3405 8799 3406 8821 3432 8818

$$

41
825 
WGUS54 KBMX 051554
FFWBMX
ALC057-093-127-133-052000-
/O.EXT.KBMX.FF.W.0049.000000T0000Z-110905T2000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1054 AM CDT MON SEP 5 2011

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  FAYETTE COUNTY IN WEST CENTRAL ALABAMA...
  MARION COUNTY IN NORTHWEST ALABAMA...
  WALKER COUNTY IN ALABAMA...
  WINSTON COUNTY IN NORTHWEST ALABAMA...

* UNTIL 300 PM CDT

* AT 1052 AM CDT...NATIONAL WEATHER SERVICE INDICATED AN AREA OF 
  HEAVY RAINFALL CONTINUED ACROSS THE WARNED AREA. RAINFALL OF ONE 
  TO THREE INCHES HAS FALLEN DURING THE PAST THREE HOURS...AND AN 
  ADDITIONAL ONE TO TWO INCHES IS POSSIBLE DURING THE NEXT TWO HOURS.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  ARLEY...CARBON HILL...CORDOVA...FAYETTE...HALEYVILLE...  
  HAMILTON...JASPER...LYNN...SUMITON...WINFIELD...ADDISON...  
  ASHBANK...BERRY...BRILLIANT...AND DOUBLE SPRINGS.


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.

LAT...LON 3430 8711 3399 8710 3397 8713 3390 8708
      3390 8701 3384 8696 3377 8703 3366 8706
      3362 8717 3352 8725 3352 8732 3359 8732
      3361 8763 3352 8767 3353 8794 3402 8795
      3405 8799 3406 8821 3432 8818

$$

41

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 5, 4:31 AM CDTWind AdvisoryBMXAutauga, Barbour, Bibb, Blount, Bullock, Calhoun and 33 more26 hr
Sep 5, 5:34 AM CDTAreal Flood AdvisoryBMXMontgomery3 hr
Sep 5, 5:54 AM CDTFlash Flood WarningBMXElmore, Montgomery2 hr
Sep 5, 6:19 AM CDTFlash Flood WarningBMXPickens7 hr
Sep 5, 6:20 AM CDTTornado WarningBMXPickens24 min
Sep 5, 6:44 AM CDTFlash Flood WarningBMXLamar4 hr
Sep 5, 6:57 AM CDTFlash Flood WarningBMXLamar7 hr
Sep 5, 8:27 AM CDTFlash Flood WarningBMXSumter4 hr
Sep 5, 9:01 AM CDTAreal Flood WarningBMXLamar60 hr
Sep 5, 9:29 AM CDTRiver Flood WarningBMXGreene, Hale, Marengo, Sumter48 hr
Sep 5, 9:40 AM CDTFlash Flood WarningBMXPickens6 hr
Sep 5, 10:07 AM CDTRiver Flood WarningBMXJefferson, Tuscaloosa, Walker72 hr
Sep 5, 10:07 AM CDTRiver Flood WarningBMXGreene, Hale, Marengo, Sumter, Tuscaloosa59 hr
Sep 5, 10:07 AM CDTRiver Flood WarningBMXGreene, Hale, Marengo5 days
Sep 5, 10:14 AM CDTTornado WarningBMXBullock, Pike13 min
Sep 5, 10:16 AM CDTFlash Flood WarningBMXGreene6 hr
Sep 5, 10:28 AM CDTFlash Flood WarningBMXLamar4 hr
Sep 5, 10:31 AM CDTTornado WarningBMXLee, Macon, Russell29 min
Sep 5, 10:48 AM CDTTornado WarningBMXBibb, Hale, Perry27 min
Sep 5, 10:51 AM CDTTornado WarningBMXLee24 min
Sep 5, 11:11 AM CDTTornado WarningBMXChambers34 min
Sep 5, 11:36 AM CDTFlash Flood WarningBMXTuscaloosa7 hr
Sep 5, 11:39 AM CDTTornado WarningBMXPerry36 min
Sep 5, 12:20 PM CDTTornado WarningBMXDallas25 min
Sep 5, 12:21 PM CDTTornado WarningBMXBullock, Pike24 min
Sep 5, 12:35 PM CDTTornado WarningBMXChilton, Dallas, Perry25 min
Sep 5, 12:40 PM CDTAreal Flood WarningBMXPickens3 hr
Sep 5, 1:00 PM CDTTornado WarningBMXLee, Russell30 min
Sep 5, 1:09 PM CDTFlash Flood WarningBMXJefferson6 hr
Sep 5, 1:27 PM CDTAreal Flood WarningBMXPickens3 hr
Sep 5, 1:47 PM CDTAreal Flood WarningBMXPickens3 hr
Sep 5, 2:27 PM CDTSevere Thunderstorm WarningBMXJefferson48 min
Sep 5, 2:28 PM CDTFlash Flood WarningBMXBlount, Jefferson4 hr
Sep 5, 3:01 PM CDTAreal Flood WarningBMXFayette, Marion, Walker, Winston17 hr
Sep 5, 3:03 PM CDTTornado WarningBMXLee, Macon27 min
Sep 5, 3:26 PM CDTRiver Flood WarningBMXJefferson15 hr
Sep 5, 4:06 PM CDTAreal Flood WarningBMXPickens16 hr
Sep 5, 4:39 PM CDTFlash Flood Warning EmergencyBMXJefferson5 hr
Sep 5, 4:52 PM CDTFlash Flood WarningBMXBibb, Shelby3 hr
Sep 5, 5:08 PM CDTSpecial Weather StatementBMXBlount, Jefferson67 min
Sep 5, 5:12 PM CDTFlash Flood WarningBMXEtowah, St. Clair6 hr
Sep 5, 6:12 PM CDTSpecial Weather StatementBMXBlount, Jefferson78 min
Sep 5, 6:18 PM CDTAreal Flood WarningBMXTuscaloosa6 hr
Sep 5, 6:38 PM CDTFlash Flood WarningBMXBlount3 hr
Sep 5, 6:41 PM CDTHigh Wind WarningBMXBlount, Calhoun, Cherokee, Clay, Cleburne, Etowah and 5 more3 hr

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; radar from the NEXRAD Level II archive.