Alert archive / Alabama / Flash Flood Warnings in 2015

Flash Flood Warning 15, NWS Mobile, AL

May 25, 2015Mobile County, Washington County, Alabama; Greene County, Mississippi

NWS Mobile, AL issued this flash flood warning at May 25, 2015, 7:25 AM CDT for Mobile County, Washington County, Alabama; Greene County, Mississippi. It was in force for 6 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: May 25, 2015, 7:25 AM CDT (12:25 UTC)
Expired: May 25, 2015, 1:30 PM CDT
In force: 6 hr
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Flood severity: None

Counties Mobile County, AL, Washington County, AL, Greene County, MS

The radar

The Mobile radar (KMOB), 52 km from the middle of the area, began a volume at 12:25 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

Slidell Radar S, LA (KSIL), launched 12:00Z, 0.4 hours before the alert went out and 153 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: 2876 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 583 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 156 m²/s²
0-3 km storm-relative helicity: 161 m²/s²
Significant tornado parameter: 1.3
Supercell composite: 8.2

Open this sounding in Storm Lab

The text

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

975 
WGUS54 KMOB 251225
FFWMOB
ALC097-129-MSC041-251830-
/O.NEW.KMOB.FF.W.0015.150525T1225Z-150525T1830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
725 AM CDT MON MAY 25 2015

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHWESTERN MOBILE COUNTY IN SOUTHWESTERN ALABAMA...
  SOUTHWESTERN WASHINGTON COUNTY IN SOUTHWESTERN ALABAMA...
  SOUTHEASTERN GREENE COUNTY IN SOUTHEASTERN MISSISSIPPI...

* UNTIL 130 PM CDT MONDAY

* AT 723 AM CDT...VERY HEAVY RAINFALL WAS INDICATED OVER THE WARNED
  AREA AND RADAR ESTIMATES SHOW 2 TO 3 INCHES OF RAINFALL HAS 
  OCCURRED OVER THE PAST HOUR. RAINFALL IS EXPECTED TO ACCUMULATE 
  FURTHER. THIS WILL LIKELY BRING FLASH FLOODING TO THE WARNED AREA.

* LOCATIONS IMPACTED INCLUDE...
  LEAKESVILLE...         VINEGAR BEND...        DEER PARK...
  EARLVILLE...           PISGAH...              EPWORTH...
  BROWN TOWN...          DUEITT...              ROUNSAVILLE...
  BURBANK...             WALLEY...              

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!

RESIDENTS LIVING AND CAMPERS RECREATING ALONG SMALL CREEKS CAN EXPECT
RAPID RISES AND SUBSEQUENT FLOODING. SEEK HIGHER GROUND IMMEDIATELY.

NEVER TRY TO CROSS OR PLAY IN AN URBAN SPILLWAY OR FLOWING CREEK...
EVEN A SMALL ONE. URBAN FLASH FLOODING IS A MAJOR KILLER.

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 3127 8860 3127 8826 3098 8826 3098 8842
      3100 8843 3100 8860

$$

1 follow-up statement

300 
WGUS74 KMOB 251342
FFSMOB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
842 AM CDT MON MAY 25 2015

ALC097-129-MSC041-251352-
/O.CAN.KMOB.FF.W.0015.000000T0000Z-150525T1830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MOBILE AL-WASHINGTON AL-GREENE MS-
842 AM CDT MON MAY 25 2015

...THE FLASH FLOOD WARNING FOR NORTHWESTERN MOBILE...SOUTHWESTERN
WASHINGTON AND SOUTHEASTERN GREENE COUNTIES HAS BEEN CANCELLED...

AT 842 AM CDT...THE HEAVY RAINS THAT PROMPTED THE WARNING FOR
NORTHWESTERN MOBILE...SOUTHWESTERN WASHINGTON AND SOUTHEASTERN GREENE
COUNTIES HAVE ENDED THUS THE FLASH FLOOD WARNING HAS BEEN CANCELLED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3127 8860 3127 8826 3098 8826 3098 8842
      3100 8843 3100 8860

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 25, 5:24 AM CDT	Special Weather Statement	MOB	Washington	66 min
May 25, 5:31 AM CDT	Areal Flood Advisory	MOB	Choctaw, Clarke, Mobile, Washington	3 hr
May 25, 6:43 AM CDT	Special Weather Statement	MOB	Washington	62 min
May 25, 7:48 AM CDT	Severe Thunderstorm Warning	MOB	Washington	26 min
May 25, 12:10 PM CDT	Areal Flood Advisory	MOB	Baldwin, Clarke, Mobile, Monroe	3 hr
May 25, 2:14 AM CDT	Severe Thunderstorm Warning	MOB	Wayne	46 min
May 25, 4:09 AM CDT	Special Weather Statement	MOB	Stone	66 min
May 25, 5:54 AM CDT	Flash Flood Warning	MOB	George, Greene, Perry, Stone	6 hr

Nearby

Flash Flood Warnings in Alabama, 2015 Flash Flood Warnings in Mississippi, 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.