Alert archive / Alabama / Flash Flood Warnings in 2011

Flash Flood Warning 13, NWS Mobile, AL

March 9, 2011Conecuh County, Escambia County, Alabama

NWS Mobile, AL issued this flash flood warning at Mar 9, 2011, 8:48 AM CST for Conecuh County, Escambia County, Alabama. It was in force for 5 hr. 2 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: Mar 9, 2011, 8:48 AM CST (14:48 UTC)
Expired: Mar 9, 2011, 2:07 PM CST
In force: 5 hr
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Flood severity: None

Counties Conecuh County, AL, Escambia County, AL

The radar

The Mobile radar (KMOB), 122 km from the middle of the area, began a volume at 14:49 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
Mar 9, 10:00 AM CST	FLASH FLOOD	Atmore, AL	WATER OVER ROADS IN AREA. TIME ESTIMATED.
Mar 9, 10:30 AM CST	FLASH FLOOD	Brewton, AL	WATER OVER ROADS IN AREA. TIME ESTIMATED.

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, 2.8 hours before the alert went out and 206 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 467 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 743 m²/s²
0-3 km storm-relative helicity: 1250 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.

664 
WGUS54 KMOB 091448
FFWMOB
ALC035-053-092045-
/O.NEW.KMOB.FF.W.0013.110309T1448Z-110309T2045Z/
/00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
848 AM CST WED MAR 9 2011

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WESTERN CONECUH COUNTY IN SOUTH CENTRAL ALABAMA...
  THIS INCLUDES THE CITY OF EVERGREEN...
  ESCAMBIA COUNTY IN SOUTH CENTRAL ALABAMA...
  THIS INCLUDES THE CITIES OF...FLOMATON...EAST BREWTON...BREWTON...
  ATMORE...

* UNTIL 245 PM CST

* AT 842 AM CST...NATIONAL WEATHER SERVICE RADAR INDICATED VERY HEAVY
  RAIN FROM A LINE OF THUNDERSTORMS MOVING ACROSS CONECUH AND
  ESCAMBIA COUNTIES ALABAMA.  THESE STORMS HAVE BEEN PRODUCING UP TO
  3 INCHES OF RAIN IN A SHORT AMOUNT OF TIME WHICH WILL QUICKLY LEAD
  TO FLASH FLOODING.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

TO REPORT FLASH FLOODING TO YOUR NATIONAL WEATHER SERVICE...CALL TOLL
FREE AT 1 8 7 7 6 3 3 6 7 7 2.

LAT...LON 3100 8691 3101 8761 3125 8761 3124 8755
      3127 8749 3127 8743 3146 8720 3152 8716
      3157 8716 3160 8713 3164 8713 3165 8712
      3166 8692

$$

1 follow-up statement

613 
WGUS74 KMOB 092007
FFSMOB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
207 PM CST WED MAR 9 2011

ALC035-053-092017-
/O.CAN.KMOB.FF.W.0013.000000T0000Z-110309T2045Z/
/00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ESCAMBIA AL-CONECUH AL-
207 PM CST WED MAR 9 2011

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR WESTERN CONECUH AND
ESCAMBIA COUNTIES...

AT 207 PM CST...REPORTS FROM EMERGENCY MANAGEMENT AND LOCAL LAW 
ENFORCEMENT INDICATE THAT AREAS THAT DID EXPERIENCE FLOODING HAVE 
SINCE SUBSIDED...THUS THE FLASH FLOOD WARNING HAS BEEN CANCELLED.

LAT...LON 3100 8691 3101 8761 3125 8761 3124 8755
      3127 8749 3127 8743 3146 8720 3152 8716
      3157 8716 3160 8713 3164 8713 3165 8712
      3166 8692

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 8, 7:11 PM CST	Severe Thunderstorm Warning	MOB	Mobile, Washington	34 min
Mar 8, 8:23 PM CST	Severe Thunderstorm Warning	MOB	Washington	37 min
Mar 8, 9:04 PM CST	Severe Thunderstorm Warning	MOB	Clarke, Washington	41 min
Mar 8, 9:44 PM CST	Severe Thunderstorm Warning	MOB	Clarke, Washington, Wilcox	46 min
Mar 9, 1:32 AM CST	Flash Flood Warning	MOB	Choctaw	118 min
Mar 9, 4:20 AM CST	Flash Flood Warning	MOB	Choctaw	6 hr
Mar 9, 4:22 AM CST	Severe Thunderstorm Warning	MOB	Choctaw	38 min
Mar 9, 4:32 AM CST	Tornado Warning	MOB	Choctaw	33 min
Mar 9, 5:07 AM CST	Flash Flood Warning	MOB	Choctaw	6 hr
Mar 9, 5:40 AM CST	Tornado Warning	MOB	Choctaw, Clarke	33 min
Mar 9, 5:51 AM CST	Flash Flood Warning	MOB	Clarke, Washington, Wilcox	6 hr
Mar 9, 6:37 AM CST	Tornado Warning	MOB	Washington	17 min
Mar 9, 7:08 AM CST	Severe Thunderstorm Warning	MOB	Baldwin, Mobile, Washington	52 min
Mar 9, 7:26 AM CST	Flash Flood Warning	MOB	Baldwin, Clarke, Mobile, Washington	6 hr
Mar 9, 7:33 AM CST	Flash Flood Warning	MOB	Monroe	6 hr
Mar 9, 7:52 AM CST	Severe Thunderstorm Warning	MOB	Baldwin, Mobile	83 min
Mar 9, 7:54 AM CST	Special Marine Warning	MOB		81 min
Mar 9, 8:01 AM CST	Tornado Warning	MOB	Baldwin, Mobile	44 min
Mar 9, 8:14 AM CST	Severe Thunderstorm Warning	MOB	Conecuh, Covington, Escambia	61 min
Mar 9, 8:27 AM CST	Tornado Warning	MOB	Baldwin, Mobile	63 min
Mar 9, 8:35 AM CST	Tornado Warning	MOB	Conecuh, Covington, Escambia	40 min
Mar 9, 8:41 AM CST	Flash Flood Warning	MOB	Baldwin, Mobile	4 hr
Mar 9, 8:50 AM CST	Severe Thunderstorm Warning	MOB	Butler, Conecuh, Covington, Crenshaw	40 min
Mar 9, 9:02 AM CST	Severe Thunderstorm Warning	MOB	Baldwin, Escambia	58 min
Mar 9, 9:10 AM CST	Severe Thunderstorm Warning	MOB	Butler, Conecuh, Covington, Crenshaw, Escambia	65 min
Mar 9, 9:10 AM CST	Tornado Warning	MOB	Baldwin	50 min
Mar 9, 9:16 AM CST	Tornado Warning	MOB	Baldwin	44 min
Mar 9, 9:16 AM CST	Tornado Warning	MOB	Covington	59 min
Mar 9, 9:19 AM CST	Special Marine Warning	MOB		116 min
Mar 9, 9:23 AM CST	Special Marine Warning	MOB		97 min
Mar 9, 9:25 AM CST	Flash Flood Warning	MOB	Baldwin	6 hr
Mar 9, 9:26 AM CST	Tornado Warning	MOB	Baldwin, Escambia	49 min
Mar 9, 9:26 AM CST	Tornado Warning	MOB	Covington, Crenshaw	26 min
Mar 9, 9:36 AM CST	Flash Flood Warning	MOB	Conecuh, Covington, Escambia	114 min
Mar 9, 9:40 AM CST	Tornado Warning	MOB	Baldwin	50 min
Mar 9, 9:44 AM CST	Areal Flood Advisory	MOB	Butler, Conecuh, Covington, Crenshaw	4 hr
Mar 9, 9:54 AM CST	Tornado Warning	MOB	Covington	25 min
Mar 9, 10:09 AM CST	Severe Thunderstorm Warning	MOB	Covington	66 min
Mar 9, 10:22 AM CST	Areal Flood Warning	MOB	Choctaw	5 hr
Mar 9, 10:55 AM CST	Special Marine Warning	MOB		80 min
Mar 9, 11:00 AM CST	Areal Flood Warning	MOB	Choctaw	5 hr
Mar 9, 11:14 AM CST	Tornado Warning	MOB	Baldwin	61 min
Mar 9, 11:30 AM CST	River Flood Warning	MOB	Clarke, Monroe, Wilcox	10 days
Mar 9, 11:54 AM CST	Areal Flood Advisory	MOB	Conecuh, Covington, Escambia	111 min
Mar 9, 11:58 AM CST	Special Marine Warning	MOB		2 hr
Mar 9, 12:00 PM CST	Areal Flood Warning	MOB	Clarke, Washington, Wilcox	4 hr
Mar 9, 2:02 PM CST	Special Marine Warning	MOB		58 min

Nearby

Flash Flood Warnings in Alabama, 2011 Every flash flood warning in 2011

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.