Alert archive / Alabama / Flash Flood Warnings in 2012

Flash Flood Warning 35, NWS Mobile, AL

September 4, 2012Butler County, Covington County, Crenshaw County, Alabama

NWS Mobile, AL issued this flash flood warning at Sep 4, 2012, 8:26 AM CDT for Butler County, Covington County, Crenshaw 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: Sep 4, 2012, 8:26 AM CDT (13:26 UTC)
Expired: Sep 4, 2012, 2:15 PM CDT
In force: 6 hr
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Flood severity: None

Counties Butler County, AL, Covington County, AL, Crenshaw County, AL

What was reported inside it

Time	Report	Where	Remark
Sep 4, 9:10 AM CDT	FLASH FLOOD	Andalusia, AL	WATER COVERING THE ROAD AT THE INTERSECTION OF WOODRUFF STREET AND OPP AVENUE.

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, 1.4 hours before the alert went out and 194 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.

195 
WGUS54 KMOB 041326
FFWMOB
ALC013-039-041-041915-
/O.NEW.KMOB.FF.W.0035.120904T1326Z-120904T1915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

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

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

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

* UNTIL 215 PM CDT

* AT 815 AM CDT...VERY HEAVY RAINFALL WAS INDICATED OVER THE WARNED
  AREA. DOPPLER RADAR ESTIMATES THAT 3 TO 6 INCHES HAS ALREADY FALLEN
  OVER PORTIONS OF SOUTHERN BUTLER AND CRENSHAW COUNTIES...AS 
  WELL AS EASTERN COVINGTON COUNTY. PERSISTENT HEAVY RAIN IS EXPECTED
  TO PERSIST FOR AT LEAST THE NEXT FEW HOURS...PRODUCING 1 TO 2 INCH
  AN HOUR RAINFALL RATES. THIS WILL LIKELY CAUSE FLASH FLOODING
  IN THE WARNED AREA.

* LOCATIONS IMPACTED INCLUDE...
  ANDALUSIA...          GLENWOOD...           DOZIER...
  BRANTLEY...           MCKENZIE...           GEORGIANA...
  SANFORD...            RIVER FALLS...        RED LEVEL...

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 3152 8619 3100 8618 3100 8657 3136 8668
      3141 8666 3144 8668 3144 8670 3152 8670
      3153 8672 3166 8676 3169 8614 3163 8618
      3162 8614 3154 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, 7:30 AM CDT	Flash Flood Warning	MOB	Butler, Crenshaw	6 hr
Sep 4, 8:12 AM CDT	Flash Flood Watch	MOB	Butler, Clarke, Conecuh, Covington, Crenshaw, Escambia and 2 more	25 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.