Alert archive / Alabama / Flash Flood Warnings in 2012

Flash Flood Warning 34, NWS Mobile, AL

September 4, 2012Butler County, Crenshaw County, Alabama

NWS Mobile, AL issued this flash flood warning at Sep 4, 2012, 7:30 AM CDT for Butler County, Crenshaw County, Alabama. It was in force for 6 hr. 3 reports 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: Sep 4, 2012, 7:30 AM CDT (12:30 UTC)
Expired: Sep 4, 2012, 1:30 PM CDT
In force: 6 hr
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Flood severity: None

Counties Butler County, AL, Crenshaw County, AL

What was reported inside it

Time	Report	Where	Remark
Sep 4, 9:00 AM CDT	FLASH FLOOD	6 Sw Fort Deposit, AL	FLASH FLOODING REPORTED ON HIGHWAY 185 IN FAR NORTHERN BUTLER COUNTY.
Sep 4, 10:00 AM CDT	FLASH FLOOD	Greenville, AL	COUNTY ROAD 45 WAS CLOSED DUE TO FLASH FLOODING...NOW BACK OPEN. HIGHWAY 10 IS FLOODED IN GREENVILLE.
Sep 4, 12:30 PM CDT	FLASH FLOOD	4 E Greenville, AL	WATER OVER HIGHWAY 50 EAST OF HIGHWAY 10.

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 12:00Z, 0.5 hours before the alert went out and 149 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: 1659 J/kg
Mixed-layer CIN: -23 J/kg
Mixed-layer LCL: 531 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 24 m²/s²
0-3 km storm-relative helicity: 26 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

536 
WGUS54 KMOB 041230
FFWMOB
ALC013-041-041830-
/O.NEW.KMOB.FF.W.0034.120904T1230Z-120904T1830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
730 AM CDT TUE SEP 4 2012

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

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

* UNTIL 130 PM CDT

* AT 725 AM CDT...VERY HEAVY RAINFALL WAS INDICATED OVER THE WARNED
  AREA AND RADAR ESTIMATES SHOW RAINFALL RATES OF 2 TO 3 INCHES PER
  HOUR. THIS WILL LIKELY CAUSE FLASH FLOODING IN THE WARNED AREA.

* LOCATIONS IMPACTED INCLUDE...
  RUTLEDGE...           PETREY...             LUVERNE...
  I65 AND AL 185...     I65 AND AL 10...      GREENVILLE...

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!

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

&&

LAT...LON 3166 8674 3196 8690 3197 8644 3197 8641
      3205 8640 3206 8630 3197 8629 3197 8619
      3196 8618 3189 8616 3180 8620 3179 8615
      3168 8614

$$

1 follow-up statement

008 
WGUS74 KMOB 041524
FFSMOB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1024 AM CDT TUE SEP 4 2012

ALC013-041-041830-
/O.CON.KMOB.FF.W.0034.000000T0000Z-120904T1830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BUTLER AL-CRENSHAW AL-
1024 AM CDT TUE SEP 4 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 130 PM CDT FOR
NORTHERN CRENSHAW AND NORTHERN BUTLER COUNTIES...

AT 1017 AM CDT...EMERGENCY MANAGEMENT REPORTED THAT SOME ROADS OVER
THE NORTHERN PORTION OF BUTLER COUNTY HAVE EXPERIENCED FLOODING. 
RADAR ESTIMATES THAT 4 TO 9 INCHES OF RAIN HAS FALLEN OVER NORTHERN 
CRENSHAW AND BUTLER COUNTIES...WITH THE HIGHEST TOTALS OCCURRING 
OVER NORTHERN BUTLER COUNTY...INCLUDING THE CITY OF GREENVILLE.  
ADDITIONAL RAINFALL...HEAVY AT TIMES...WILL MOVE INTO THE WARNED 
AREA OVER THE NEXT FEW HOURS. THIS WILL RESULT IN A CONTINUED FLASH 
FLOODING THREAT.  

LOCATIONS IMPACTED INCLUDE...
  RUTLEDGE...           PETREY...             LUVERNE...
  I65 AND AL 185...     I65 AND AL 10...      GREENVILLE...

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!

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 3166 8674 3196 8690 3197 8644 3197 8641
      3205 8640 3206 8630 3197 8629 3197 8619
      3196 8618 3189 8616 3180 8620 3179 8615
      3168 8614

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 4, 6:52 AM CDT	Areal Flood Advisory	MOB	Butler, Crenshaw	3 hr
Sep 4, 7:20 AM CDT	Areal Flood Advisory	MOB	Covington	3 hr
Sep 4, 8:12 AM CDT	Flash Flood Watch	MOB	Butler, Clarke, Conecuh, Covington, Crenshaw, Escambia and 2 more	25 hr
Sep 4, 8:26 AM CDT	Flash Flood Warning	MOB	Butler, Covington, Crenshaw	6 hr
Sep 4, 9:10 AM CDT	Flash Flood Warning	MOB	Wilcox	6 hr
Sep 4, 10:13 AM CDT	Areal Flood Advisory	MOB	Clarke, Conecuh, Monroe	3 hr
Sep 4, 11:40 AM CDT	Flash Flood Warning	MOB	Butler, Conecuh, Monroe	3 hr
Sep 4, 1:33 PM CDT	Areal Flood Warning	MOB	Butler, Crenshaw	3 hr
Sep 4, 2:14 PM CDT	Areal Flood Warning	MOB	Butler, Conecuh, Covington, Crenshaw, Monroe, Wilcox	2 hr
Sep 4, 3:34 PM CDT	Flash Flood Warning	MOB	Baldwin, Clarke, Conecuh, Escambia, Monroe	6 hr
Sep 4, 3:44 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Escambia	61 min
Sep 4, 4:26 PM CDT	Areal Flood Warning	MOB	Conecuh, Monroe	8 hr
Sep 4, 4:44 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin	61 min
Sep 4, 4:59 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Escambia	61 min
Sep 4, 5:51 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin	54 min
Sep 4, 5:56 PM CDT	Severe Thunderstorm Warning	MOB	Choctaw, Clarke, Monroe, Washington, Wilcox	64 min
Sep 4, 6:37 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin	30 min
Sep 4, 6:49 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Choctaw, Clarke, Escambia, Mobile, Monroe and 2 more	34 min

Nearby

Flash Flood Warnings in Alabama, 2012 Every flash flood warning in 2012

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.