Alert archive / Alabama / Flash Flood Warnings in 2016

Flash Flood Warning 1, NWS Birmingham, AL

February 2, 20165 counties in Alabama

NWS Birmingham, AL issued this flash flood warning at Feb 2, 2016, 11:56 PM CST for 5 counties in Alabama. It was in force for 6 hr. 1 report 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: Feb 2, 2016, 11:56 PM CST (05:56 UTC)
Expired: Feb 3, 2016, 5:45 AM CST
In force: 6 hr
Issued by: NWS Birmingham, AL
Area: Storm-based polygon
Flood severity: None

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

The radar

The Columbus AFB radar (KGWX), 70 km from the middle of the area, began a volume at 05:58 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
Feb 3, 12:20 AM CST	FLASH FLOOD	2 Nnw Sulligent, AL	STANDING WATER REPORTED AT INTERSECTION OF ALABAMA HIGHWAY 17 AND RIVER 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, 5.9 hours before the alert went out and 107 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: 313 J/kg
Mixed-layer CIN: -40 J/kg
Mixed-layer LCL: 765 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 371 m²/s²
0-3 km storm-relative helicity: 518 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 5.2

Open this sounding in Storm Lab

The text

As transmitted.

983 
WGUS54 KBMX 030556
FFWBMX
ALC057-075-093-127-133-031145-
/O.NEW.KBMX.FF.W.0001.160203T0556Z-160203T1145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1156 PM CST TUE FEB 2 2016

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

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

* UNTIL 545 AM CST
    
* AT 1151 PM CST...DOPPLER RADAR INDICATED A LINE OF STRONG
  THUNDERSTORMS PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. UP TO
  THREE INCHES OF RAIN HAVE ALREADY FALLEN IN SOME LOCATIONS IN
  LAMAR...MARION...AND WINSTON COUNTIES. FLASH FLOODING HAS ALREADY
  BEEN REPORTED IN A FEW LOCATIONS...AND COULD BECOME MORE
  WIDESPREAD SHORTLY. AREAS DOWNSTREAM IN WALKER COUNTY SHOULD PAY
  CLOSE ATTENTION TO THE STORMS MOVING IN...AS THEY WILL PRODUCE
  VERY HEAVY RAINS IN A SHORT PERIOD OF TIME THAT COULD ALSO LEAD TO
  FLOODING.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  JASPER...HAMILTON...WINFIELD...FAYETTE...HALEYVILLE...CORDOVA...
  CARBON HILL...VERNON...SULLIGENT...MILLPORT...LYNN...ARLEY...
  GUIN...HACKLEBURG...BERRY...DOUBLE SPRINGS...PARRISH...BRILLIANT...
  OAKMAN AND ADDISON.

ADDITIONAL RAINFALL AMOUNTS OF UP TO 2 INCHES ARE POSSIBLE IN THE
WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU LIVE IN A LOW LYING AREA...MOVE TO HIGHER GROUND NOW. ACT
QUICKLY TO PROTECT YOUR LIFE.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. TURN AROUND...DON'T DROWN.

PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.

&&

LAT...LON 3406 8821 3405 8811 3431 8785 3430 8711
      3399 8711 3399 8715 3396 8711 3388 8711
      3372 8720 3363 8733 3360 8743 3361 8763
      3352 8768 3354 8827

$$

56

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 2, 6:28 PM CST	Areal Flood Advisory	BMX	Fayette, Lamar, Pickens	3 hr
Feb 2, 8:13 PM CST	Tornado Warning	BMX	Lamar, Marion	12 min
Feb 2, 9:21 PM CST	Areal Flood Advisory	BMX	Fayette, Lamar, Marion, Winston	3 hr
Feb 2, 10:39 PM CST	Tornado Warning	BMX	Perry	13 min
Feb 2, 11:04 PM CST	Tornado Warning	BMX	Pickens	13 min
Feb 3, 12:05 AM CST	Areal Flood Advisory	BMX	Tuscaloosa	4 hr
Feb 3, 12:49 AM CST	Areal Flood Advisory	BMX	Bibb, Jefferson, Shelby	4 hr
Feb 3, 1:04 AM CST	Areal Flood Advisory	BMX	Greene, Hale, Marengo, Perry, Sumter	4 hr
Feb 3, 2:13 AM CST	Areal Flood Advisory	BMX	Autauga, Chilton, Dallas, Perry	4 hr
Feb 3, 2:19 AM CST	Special Weather Statement	BMX	Calhoun, Cherokee, Cleburne, Talladega	56 min
Feb 3, 2:56 AM CST	Flash Flood Warning	BMX	Dallas, Perry	6 hr
Feb 3, 3:21 AM CST	Special Weather Statement	BMX	Cleburne	24 min
Feb 3, 4:10 AM CST	Areal Flood Advisory	BMX	Autauga, Elmore, Lowndes, Montgomery	4 hr
Feb 3, 4:10 AM CST	Flash Flood Watch	BMX	Barbour, Bullock, Chambers, Elmore, Lee, Lowndes and 6 more	11 hr
Feb 3, 9:13 AM CST	River Flood Warning	BMX	Bibb, Jefferson, Shelby	29 hr
Feb 3, 9:13 AM CST	River Flood Warning	BMX	Bibb, Dallas, Perry	42 hr
Feb 3, 9:24 AM CST	River Flood Warning	BMX	Montgomery	53 hr
Feb 3, 1:55 PM CST	River Flood Warning	BMX	Greene, Hale, Marengo, Pickens, Sumter	54 hr
Feb 3, 1:55 PM CST	River Flood Warning	BMX	Greene, Hale, Marengo, Sumter	5 days
Feb 3, 2:00 PM CST	River Flood Warning	BMX	Greene, Hale, Marengo	4 days
Feb 3, 2:34 PM CST	River Flood Warning	BMX	Dallas, Perry	3 days

Nearby

Flash Flood Warnings in Alabama, 2016 Every flash flood warning in 2016

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.