Alert archive / Alabama / Flash Flood Warnings in 2015

Flash Flood Warning 28, NWS Mobile, AL

December 24, 2015Covington County, Crenshaw County, Alabama

NWS Mobile, AL issued this flash flood warning at Dec 24, 2015, 4:44 PM CST for Covington County, Crenshaw 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: Dec 24, 2015, 4:44 PM CST (22:44 UTC)
Expired: Dec 24, 2015, 7:45 PM CST
In force: 3 hr
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Flood severity: None

Counties Covington County, AL, Crenshaw County, AL

The radar

The Ft Rucker radar (KEOX), 77 km from the middle of the area, began a volume at 22:45 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

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 10.7 hours before the alert went out and 227 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: 1020 J/kg
Mixed-layer CIN: -19 J/kg
Mixed-layer LCL: 579 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 184 m²/s²
0-3 km storm-relative helicity: 195 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.5

Open this sounding in Storm Lab

The text

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

062 
WGUS54 KMOB 242244
FFWMOB
ALC039-041-250145-
/O.NEW.KMOB.FF.W.0028.151224T2244Z-151225T0145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
444 PM CST THU DEC 24 2015

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CRENSHAW COUNTY IN SOUTH CENTRAL ALABAMA...
  COVINGTON COUNTY IN SOUTH CENTRAL ALABAMA...

* UNTIL 745 PM CST

* AT 444 PM CST...VERY HEAVY RAINFALL WAS INDICATED OVER THE WARNED
  AREA AND RADAR ESTIMATES SHOW 1 TO 2 INCHES OF RAINFALL HAS
  OCCURRED OVER THE PAST HOUR WHICH HAS FALLEN ON SATURATED GROUND.
  THIS WILL LIKELY CAUSE FLASH FLOODING IN THE WARNED AREA.

* LOCATIONS IMPACTED INCLUDE...
  ANDALUSIA...           OPP...                 LUVERNE...
  BRANTLEY...            BABBIE...              RIVER FALLS...
  RUTLEDGE...            DOZIER...              CAROLINA...
  HEATH...               SANFORD...             HORN HILL...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS FLOODING IS IMMINENT OR OCCURRING. SEEK
HIGHER GROUND IMMEDIATELY. DO NOT DRIVE OR WALK INTO AREAS WHERE
WATER CROSSES A ROAD. TURN AROUND - DON'T DROWN!

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

IF YOU ARE IN DANGER FROM THE FLOOD WATERS AND NEED RESCUE ASSISTANCE
CALL 911.  TO REPORT FLOODING TO THE NATIONAL WEATHER SERVICE CALL
(800) 284-9059.

&&

LAT...LON 3153 8620 3138 8619 3101 8643 3102 8670
      3119 8668 3197 8625 3191 8618 3179 8620
      3179 8615 3166 8615 3162 8618 3162 8615
      3154 8614

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 23, 7:29 PM CST	River Flood Warning	MOB	Baldwin	43 hr
Dec 23, 9:05 PM CST	Special Weather Statement	MOB	Covington	25 min
Dec 23, 11:00 PM CST	Areal Flood Warning	MOB	Covington, Crenshaw	12 hr
Dec 24, 5:22 AM CST	Areal Flood Advisory	MOB	Mobile	113 min
Dec 24, 6:53 AM CST	Areal Flood Advisory	MOB	Baldwin, Escambia	3 hr
Dec 24, 7:30 AM CST	Special Weather Statement	MOB	Conecuh	60 min
Dec 24, 8:04 AM CST	Areal Flood Advisory	MOB	Escambia	3 hr
Dec 24, 8:27 AM CST	Areal Flood Advisory	MOB	Conecuh	3 hr
Dec 24, 8:46 AM CST	River Flood Warning	MOB	Covington, Escambia	61 hr
Dec 24, 9:21 AM CST	River Flood Warning	MOB	Covington	4 days
Dec 24, 9:28 AM CST	Flash Flood Warning	MOB	Conecuh, Escambia	4 hr
Dec 24, 9:55 AM CST	Areal Flood Advisory	MOB	Monroe	3 hr
Dec 24, 10:02 AM CST	Areal Flood Advisory	MOB	Butler	3 hr
Dec 24, 11:48 AM CST	Areal Flood Warning	MOB	Monroe	6 hr
Dec 24, 12:27 PM CST	Dense Fog Advisory	MOB	Baldwin, Mobile	21 hr
Dec 24, 1:04 PM CST	Areal Flood Advisory	MOB	Covington, Crenshaw	3 hr
Dec 24, 1:22 PM CST	Special Weather Statement	MOB	Covington	38 min
Dec 24, 1:28 PM CST	Areal Flood Warning	MOB	Conecuh, Escambia	6 hr
Dec 24, 1:50 PM CST	Flash Flood Warning	MOB	Covington, Crenshaw	3 hr
Dec 24, 2:18 PM CST	Areal Flood Warning	MOB	Butler	6 hr
Dec 24, 2:49 PM CST	Flash Flood Warning	MOB	Monroe	4 hr
Dec 24, 3:07 PM CST	Flash Flood Warning	MOB	Wilcox	4 hr
Dec 24, 5:22 PM CST	Flash Flood Warning	MOB	Conecuh	3 hr

Nearby

Flash Flood Warnings in Alabama, 2015 Every flash flood warning in 2015

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.