Alert archive / Alabama / Flash Flood Warnings in 2011

Flash Flood Warning 5, NWS Birmingham, AL

March 9, 20117 counties in Alabama

NWS Birmingham, AL issued this flash flood warning at Mar 9, 2011, 4:21 AM CST for 7 counties in Alabama. It was in force for 6 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: Mar 9, 2011, 4:21 AM CST (10:21 UTC)
Expired: Mar 9, 2011, 10:30 AM CST
In force: 6 hr
Issued by: NWS Birmingham, AL
Area: Storm-based polygon
Flood severity: None

Counties Bibb County, AL, Greene County, AL, Hale County, AL, Marengo County, AL, Perry County, AL, Sumter County, AL, Tuscaloosa County, AL

The radar

The Birmingham radar (KBMX), 106 km from the middle of the area, began a volume at 10:21 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
Mar 9, 5:30 AM CST	FLASH FLOOD	Greensboro, AL	OVER ONE FOOT OF WATER ACROSS COUNTY ROAD 4, COUNTY ROAD 19, AND BATES-NEWELL ROAD. MULTIPLE TRAFFIC ACCIDENTS.
Mar 9, 6:28 AM CST	FLASH FLOOD	Marion, AL	SEVERAL STREETS FLOODED AND SOME CULVERTS WASHED OUT IN MARION.

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, 10.4 hours before the alert went out and 105 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1808 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 365 m²/s²
0-3 km storm-relative helicity: 712 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

119 
WGUS54 KBMX 091021
FFWBMX
ALC007-063-065-091-105-119-125-091630-
/O.NEW.KBMX.FF.W.0005.110309T1021Z-110309T1630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
421 AM CST WED MAR 9 2011

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  GREENE COUNTY IN WEST CENTRAL ALABAMA...
  HALE COUNTY IN WEST CENTRAL ALABAMA...
  NORTHERN MARENGO COUNTY IN SOUTHWEST ALABAMA...
  SOUTHWESTERN BIBB COUNTY IN CENTRAL ALABAMA...
  SUMTER COUNTY IN WEST CENTRAL ALABAMA...
  TUSCALOOSA COUNTY IN WEST CENTRAL ALABAMA...
  WESTERN PERRY COUNTY IN CENTRAL ALABAMA...

* UNTIL 1030 AM CST

* AT 415 AM CST...NATIONAL WEATHER SERVICE INDICATED SLOW MOVING
  THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA.
  ONE TO THREE INCHES OF RAINFALL HAS BEEN ESTIMATED BY
  DOPPLER RADAR BETWEEN 10 PM TUESDAY AND 4 AM THIS MORNING...
  WITH LOCALIZED AMOUNTS NEAR FIVE INCHES.  

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  CUBA...DEMOPOLIS...EUTAW...GREENSBORO...HOLT...LIVINGSTON...
  MARION...NORTHPORT...TUSCALOOSA...UNIONTOWN...YORK...AKRON...
  ALLISON...ARCOLA...BLUFFPORT...BOLIGEE...BOYD...BROOKWOOD...BRYANT
  DENNY STADIUM...CHICKASAW STATE PARK...COALING...COATOPA...
  DAYTON...DEERLICK CREEK CAMPGROUNDS...DUFFYS BEND...DUG HILL...
  EMELLE...EPES...EVANSVILLE AND FAUNSDALE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 3 INCHES ARE POSSIBLE IN THE 
WARNED AREA.

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.

LAT...LON 3298 8834 3299 8817 3302 8817 3305 8814
      3305 8804 3313 8793 3316 8785 3303 8782
      3304 8780 3331 8758 3346 8731 3346 8730
      3264 8727 3249 8744 3232 8743 3233 8794
      3232 8793 3231 8842

$$

1 follow-up statement

255 
WGUS74 KBMX 091223
FFSBMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
623 AM CST WED MAR 9 2011

ALC007-063-065-091-105-119-125-091630-
/O.CON.KBMX.FF.W.0005.000000T0000Z-110309T1630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MARENGO AL-PERRY AL-SUMTER AL-HALE AL-GREENE AL-BIBB AL-TUSCALOOSA 
AL-
623 AM CST WED MAR 9 2011

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1030 AM CST FOR
SOUTHERN TUSCALOOSA...SOUTHWESTERN BIBB...GREENE...HALE...SUMTER...
WESTERN PERRY AND NORTHERN MARENGO COUNTIES...

AT 612 AM CST...NATIONAL WEATHER SERVICE CONTINUED TO INDICATE A 
LARGE AREA OF MODERATE TO HEAVY RAINFALL WITH EMBEDDED THUNDERSTORMS 
ACROSS THE WARNED AREA.  DOPPLER RADAR HAS ESTIMATED RAINFALL TOTALS 
OF 3 TO 5 INCHES BETWEEN 6 PM TUESDAY AND 6 AM TODAY...WITH THE
HIGHEST TOTALS FROM SOUTHEAST SUMTER COUNTY...EXTENDING NORTHEAST 
ACROSS DEMOPOLIS TO GREENSBORO. 

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WEST
GREENE...UNIVERSITY MALL...PANOLA...NEW WEST GREENE...MERTZ...
MCFARLAND MALL...MANTUA...LOW GAP...LAKE WILDWOOD...KNOXVILLE...
JENA...DEERLICK CREEK CAMPGROUNDS...COALING...BRYANT DENNY STADIUM...
UNION...TUSCALOOSA...NORTHPORT...MOUNDVILLE...HOLT AND BROOKWOOD

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ADDITIONAL RAINFALL AMOUNTS UP TO 1 INCH ARE POSSIBLE IN THE WARNED 
AREA.

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. MOVE TO HIGHER GROUND.

&&

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

LAT...LON 3298 8834 3299 8817 3302 8817 3305 8814
      3305 8804 3313 8793 3316 8785 3303 8782
      3304 8780 3331 8758 3346 8731 3346 8730
      3264 8727 3249 8744 3232 8743 3233 8794
      3232 8793 3231 8842

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 8, 6:21 PM CST	Special Weather Statement	BMX	Lamar	24 min
Mar 8, 7:06 PM CST	Areal Flood Warning	BMX	Lamar	3 hr
Mar 8, 8:42 PM CST	Areal Flood Advisory	BMX	Greene, Hale, Marengo, Pickens, Sumter	3 hr
Mar 8, 9:00 PM CST	River Flood Warning	BMX	Greene, Hale, Marengo, Sumter	4 days
Mar 8, 9:49 PM CST	River Flood Warning	BMX	Bibb, Jefferson, Shelby	36 hr
Mar 8, 9:49 PM CST	River Flood Warning	BMX	Bibb, Dallas, Perry	61 hr
Mar 8, 10:33 PM CST	River Flood Warning	BMX	Greene, Hale, Marengo, Sumter	9 days
Mar 8, 10:38 PM CST	River Flood Warning	BMX	Greene, Hale, Marengo	8 days
Mar 8, 11:21 PM CST	Areal Flood Advisory	BMX	Greene, Hale, Lamar, Marengo, Pickens, Sumter	3 hr
Mar 8, 11:55 PM CST	Special Weather Statement	BMX	Dallas, Perry	50 min
Mar 9, 1:02 AM CST	Areal Flood Advisory	BMX	Fayette, Jefferson, Marion, Tuscaloosa, Walker, Winston	3 hr
Mar 9, 1:15 AM CST	Special Weather Statement	BMX	Marengo	30 min
Mar 9, 1:37 AM CST	Special Weather Statement	BMX	Dallas	38 min
Mar 9, 2:29 AM CST	Flash Flood Warning	BMX	Fayette, Lamar, Marion, Pickens, Tuscaloosa, Walker and 1 more	6 hr
Mar 9, 2:47 AM CST	Special Weather Statement	BMX	Perry	43 min
Mar 9, 3:32 AM CST	Areal Flood Advisory	BMX	Greene, Hale, Marengo, Perry, Sumter	3 hr
Mar 9, 3:56 AM CST	Areal Flood Advisory	BMX	Bibb, Blount, Jefferson, Shelby, Tuscaloosa	3 hr
Mar 9, 4:38 AM CST	Severe Thunderstorm Warning	BMX	Marengo, Sumter	37 min
Mar 9, 4:59 AM CST	Special Weather Statement	BMX	Bibb, Hale, Jefferson, Perry, Tuscaloosa	46 min
Mar 9, 5:24 AM CST	Flash Flood Warning	BMX	Bibb, Blount, Chilton, Dallas, Jefferson, Perry and 3 more	6 hr
Mar 9, 5:27 AM CST	River Flood Warning	BMX	Jefferson	16 hr
Mar 9, 5:48 AM CST	Special Weather Statement	BMX	Autauga, Blount, Calhoun, Chilton, Coosa, Dallas and 5 more	57 min
Mar 9, 6:00 AM CST	Flash Flood Warning	BMX	Blount, Calhoun, Cherokee, Etowah, St. Clair, Shelby and 1 more	4 hr
Mar 9, 6:46 AM CST	Special Weather Statement	BMX	Clay, Coosa, Elmore, Lowndes, Montgomery, Talladega and 1 more	59 min
Mar 9, 6:53 AM CST	Special Weather Statement	BMX	Clay, Coosa, Elmore, Lowndes, Montgomery, Talladega and 1 more	52 min
Mar 9, 7:38 AM CST	Special Weather Statement	BMX	Bullock, Chambers, Lee, Macon, Montgomery, Pike and 1 more	67 min
Mar 9, 8:25 AM CST	Areal Flood Warning	BMX	Lamar	24 hr
Mar 9, 8:34 AM CST	Special Weather Statement	BMX	Barbour, Bullock, Chambers, Lee, Macon, Russell	56 min
Mar 9, 8:53 AM CST	Areal Flood Advisory	BMX	Clay, Cleburne, Coosa, Talladega	6 hr
Mar 9, 9:25 AM CST	River Flood Warning	BMX	Jefferson, Tuscaloosa, Walker	59 hr
Mar 9, 9:46 AM CST	Severe Thunderstorm Warning	BMX	Pike	29 min
Mar 9, 10:00 AM CST	Areal Flood Warning	BMX	Talladega	12 hr
Mar 9, 10:03 AM CST	Tornado Warning	BMX	Barbour, Pike	42 min
Mar 9, 10:40 AM CST	Areal Flood Advisory	BMX	Chambers, Randolph, Tallapoosa	3 hr
Mar 9, 10:46 AM CST	Severe Thunderstorm Warning	BMX	Barbour	29 min
Mar 9, 10:59 AM CST	River Flood Warning	BMX	Greene, Hale, Marengo, Tuscaloosa	33 hr
Mar 9, 10:59 AM CST	River Flood Warning	BMX	Greene, Hale, Marengo, Sumter, Tuscaloosa	68 hr
Mar 9, 11:18 AM CST	Flash Flood Warning	BMX	Cleburne	3 hr
Mar 9, 12:04 PM CST	River Flood Warning	BMX	Chilton, Coosa, Elmore, Shelby, Talladega	45 hr
Mar 9, 3:56 PM CST	Special Weather Statement	BMX	Marion	34 min
Mar 9, 4:00 PM CST	Special Weather Statement	BMX	Lamar	30 min
Mar 9, 4:04 PM CST	Special Weather Statement	BMX	Pickens	26 min
Mar 9, 4:24 PM CST	Special Weather Statement	BMX	Fayette	36 min
Mar 9, 4:45 PM CST	Special Weather Statement	BMX	Pickens	30 min
Mar 9, 4:56 PM CST	Special Weather Statement	BMX	Winston	34 min
Mar 9, 5:00 PM CST	Special Weather Statement	BMX	Fayette	30 min
Mar 9, 5:14 PM CST	Special Weather Statement	BMX	Fayette	31 min
Mar 9, 5:31 PM CST	Special Weather Statement	BMX	Winston	29 min
Mar 9, 5:36 PM CST	Special Weather Statement	BMX	Walker	39 min
Mar 9, 5:46 PM CST	Special Weather Statement	BMX	Tuscaloosa	44 min

Nearby

Flash Flood Warnings in Alabama, 2011 Every 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.