Alert archive / Alabama / Flash Flood Warnings in 2016

Flash Flood Warning 6, NWS Birmingham, AL

June 25, 2016Cherokee County, Alabama

NWS Birmingham, AL issued this flash flood warning at Jun 25, 2016, 8:46 PM CDT for Cherokee County, Alabama. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 25, 2016, 8:46 PM CDT (01:46 UTC)
Expired: Jun 25, 2016, 11:45 PM CDT
In force: 3 hr
Issued by: NWS Birmingham, AL
Area: Storm-based polygon
Flood severity: None

County Cherokee County, AL

The radar

The Northeast Alabama radar (KHTX), 77 km from the middle of the area, began a volume at 01:46 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.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 1.8 hours before the alert went out and 150 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: 511 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 2612 m above ground
0-6 km bulk shear: 7 kt
0-1 km storm-relative helicity: -3 m²/s²
0-3 km storm-relative helicity: -18 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

219 
WGUS54 KBMX 260146
FFWBMX
ALC019-260445-
/O.NEW.KBMX.FF.W.0006.160626T0146Z-160626T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
846 PM CDT SAT JUN 25 2016

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN CHEROKEE COUNTY IN NORTHEASTERN ALABAMA...

* UNTIL 1145 PM CDT

* AT 846 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. UP TO TWO INCHES OF RAIN HAVE
  ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  LITTLE RIVER CANYON NATIONAL PRESERVE...BLANCHE...
  LITTLE RIVER FALLS...NEW MOON...
  BROOMTOWN AND LITTLE RIVER CANYON NP.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 3441 8549 3430 8547 3431 8555 3431 8564
      3436 8566 3437 8564 3437 8563 3438 8563
      3439 8562 3440 8563 3440 8562 3442 8560

$$

75

1 follow-up statement

290 
WGUS74 KBMX 260330
FFSBMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1030 PM CDT SAT JUN 25 2016

ALC019-260445-
/O.CON.KBMX.FF.W.0006.000000T0000Z-160626T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CHEROKEE AL-
1030 PM CDT SAT JUN 25 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1145 PM CDT FOR
NORTHEASTERN CHEROKEE COUNTY...

AT 1028 PM CDT...DOPPLER RADAR INDICATED THAT THE THUNDERSTORMS HAVE
DIMINISHED ACROSS THE WARNED AREA. BUT LIGHT TO MODERATE RAIN WILL
CONTINUE FOR A HOUR OR SO. VARIOUS RADAR ESTIMATES INDICATE 3 TO 5
INCHES OF RAIN WITH HIGHER LOCAL AMOUNTS POSSIBLE. THE RUNOFF FROM
THIS RAIN WILL KEEP THE POSSIBILITY OF FLOODING ONGOING. 

SOME LOCATIONS THAT MAY EXPERIENCE FLOODING INCLUDE...
LITTLE RIVER CANYON NATIONAL PRESERVE...BLANCHE...
LITTLE RIVER FALLS...NEW MOON...BROOMTOWN AND LITTLE RIVER CANYON NP.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

&&

LAT...LON 3441 8549 3430 8547 3431 8555 3431 8564
      3436 8566 3437 8564 3437 8563 3438 8563
      3439 8562 3440 8563 3440 8562 3442 8560

$$

75

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 25, 7:56 PM CDT	Special Weather Statement	BMX	DeKalb	34 min
Jun 25, 8:17 PM CDT	Severe Thunderstorm Warning	BMX	Cherokee	28 min
Jun 26, 3:31 AM CDT	Heat Advisory	BMX	Autauga, Barbour, Bibb, Bullock, Chilton, Dallas and 17 more	17 hr
Jun 26, 1:24 PM CDT	Special Weather Statement	BMX	Barbour	36 min
Jun 26, 1:47 PM CDT	Special Weather Statement	BMX	Walker	28 min
Jun 26, 2:18 PM CDT	Special Weather Statement	BMX	Walker	27 min
Jun 26, 2:36 PM CDT	Special Weather Statement	BMX	Sumter	24 min
Jun 26, 3:17 PM CDT	Special Weather Statement	BMX	Bullock, Pike	28 min
Jun 26, 3:24 PM CDT	Special Weather Statement	BMX	Elmore, Montgomery	51 min
Jun 26, 3:30 PM CDT	Special Weather Statement	BMX	Russell	30 min
Jun 26, 3:38 PM CDT	Severe Thunderstorm Warning	BMX	Barbour, Russell	22 min
Jun 26, 4:06 PM CDT	Special Weather Statement	BMX	Russell	39 min
Jun 26, 4:10 PM CDT	Special Weather Statement	BMX	Pike	50 min
Jun 26, 4:25 PM CDT	Special Weather Statement	BMX	Elmore	50 min
Jun 26, 4:43 PM CDT	Special Weather Statement	BMX	Chilton, Jefferson, Shelby	32 min
Jun 26, 5:09 PM CDT	Special Weather Statement	BMX	Chilton	36 min
Jun 26, 5:16 PM CDT	Special Weather Statement	BMX	Blount, Chilton, St. Clair, Shelby	29 min
Jun 26, 5:45 PM CDT	Special Weather Statement	BMX	Autauga, Blount, Chilton, Coosa, St. Clair, Shelby and 1 more	45 min
Jun 26, 6:00 PM CDT	Special Weather Statement	BMX	Lowndes	30 min
Jun 26, 6:25 PM CDT	Special Weather Statement	BMX	St. Clair	50 min
Jun 26, 6:30 PM CDT	Special Weather Statement	BMX	Autauga, Coosa, Lowndes	45 min
Jun 26, 6:44 PM CDT	Special Weather Statement	BMX	Dallas	46 min

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.