Alert archive / Alabama / Flash Flood Warnings in 2016

Flash Flood Warning 2, NWS Birmingham, AL

February 3, 2016Dallas County, Perry County, Alabama

NWS Birmingham, AL issued this flash flood warning at Feb 3, 2016, 2:56 AM CST for Dallas County, Perry County, 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 3, 2016, 2:56 AM CST (08:56 UTC)
Expired: Feb 3, 2016, 9:00 AM CST
In force: 6 hr
Issued by: NWS Birmingham, AL
Area: Storm-based polygon
Flood severity: None

Counties Dallas County, AL, Perry County, AL

The radar

The Birmingham radar (KBMX), 102 km from the middle of the area, began a volume at 08:56 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, 4:00 AM CST	FLASH FLOOD	10 Se Marion, AL	SEVERAL ROADS CONSIDERED IMPASSABLE DUE TO FLOODING...INCLUDING CR30, CR64, CR49 AND JIM FOUNDRY RD.

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, 8.9 hours before the alert went out and 103 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.

491 
WGUS54 KBMX 030856
FFWBMX
ALC047-105-031500-
/O.NEW.KBMX.FF.W.0002.160203T0856Z-160203T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
256 AM CST WED FEB 3 2016

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

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

* UNTIL 900 AM CST WEDNESDAY
    
* AT 253 AM CST...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. UP TO THREE INCHES OF RAIN HAVE
  ALREADY FALLEN. FLASH FLOODING COULD ALREADY BE OCCURRING OR WILL
  BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  MARION...ORRVILLE...BOGUE CHITTO...MARION JUNCTION...VAIDEN...
  CENTRAL MILLS...POTTER STATION...DANNELLY RESERVOIR...VAIDEN FIELD
  AIRPORT...SPROTT...SAFFORD...RADFORD...HAMBURG...OAKMULGEE...
  SUTTLE...CRUMPTONIA...HAZEN...JUDSON COLLEGE AND WHITES BLUFF.

ADDITIONAL RAINFALL AMOUNTS OF UP TO 2 INCHES OVER THE NEXT 3 HOURS
WILL BE POSSIBLE IN THE WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

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

&&

LAT...LON 3214 8725 3215 8728 3220 8732 3220 8736
      3224 8739 3224 8741 3227 8745 3226 8747
      3231 8747 3231 8750 3283 8720 3284 8702
      3266 8702 3266 8698

$$

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 2, 11:56 PM CST	Flash Flood Warning	BMX	Fayette, Lamar, Marion, Walker, Winston	6 hr
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, 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.