Alert archive / Alabama / Flash Flood Warnings in 2009

Flash Flood Warning 1, NWS Mobile, AL

January 3, 2009Baldwin County, Conecuh County, Escambia County, Alabama; Escambia County, Santa Rosa County, Florida

NWS Mobile, AL issued this flash flood warning at Jan 3, 2009, 4:00 PM CST for Baldwin County, Conecuh County, Escambia County, Alabama; Escambia County, Santa Rosa County, Florida. It was in force for 4 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
Jan 3, 2009, 4:00 PM CST (22:00 UTC)
Expired
Jan 3, 2009, 7:47 PM CST
In force
4 hr
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Flood severity
None

Counties Baldwin County, AL, Conecuh County, AL, Escambia County, AL, Escambia County, FL, Santa Rosa County, FL

The radar

The Mobile radar (KMOB), 101 km from the middle of the area, began a volume at 22:04 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

Birmingham, AL (KBMX), launched 12:00Z, 10.0 hours before the alert went out and 243 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-pSkew-T log-p diagram, Birmingham, AL at 12:00Z on 2009-01-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 378 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 12:00Z on 2009-01-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 125 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
378 J/kg
Mixed-layer CIN
-51 J/kg
Mixed-layer LCL
449 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
125 m²/s²
0-3 km storm-relative helicity
119 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KMOB 032200
FFWMOB
ALC003-035-053-FLC033-113-040345-
/O.NEW.KMOB.FF.W.0001.090103T2200Z-090104T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
400 PM CST SAT JAN 3 2009

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN ESCAMBIA COUNTY IN NORTHWEST FLORIDA...
  NORTHWESTERN SANTA ROSA COUNTY IN NORTHWEST FLORIDA...
  SOUTH CENTRAL CONECUH COUNTY IN SOUTH CENTRAL ALABAMA...
  ESCAMBIA COUNTY IN SOUTH CENTRAL ALABAMA...
  THIS INCLUDES THE CITY OF BREWTON...
  CENTRAL BALDWIN COUNTY IN SOUTHWEST ALABAMA...

* UNTIL 945 PM CST

* AT 345 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE PORTIONS OF THE EXTREME NORTHWEST
FLORIDA PANHANDLE AND INLAND SOUTHWEST ALABAMA...THIS INCLUDES THE 
CONECUH RIVER...AND BOTH THE MURDER AND BURNT CORN CREEKS NEAR 
BREWTON ALABAMA.

RADAR INDICATES 3 TO 5 INCHES OF RAINFALL HAVE ALREADY FALLEN ACROSS 
MUCH OF THE AREA.  AN ADDITIONAL 2 TO 4 INCHES OF RAINFALL IS 
EXPECTED THROUGH 945 PM CST AS SHOWERS AND THUNDERSTORMS CONTINUE TO 
DEVELOP AND MOVE ACROSS THE REGION.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

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.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

LAT...LON 3081 8765 3106 8771 3130 8706 3136 8696
      3113 8691 3095 8684 3083 8733

$$

JW
1 follow-up statement
000 
WGUS74 KMOB 040147
FFSMOB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
747 PM CST SAT JAN 3 2009

ALC003-035-053-FLC033-113-040156-
/O.CAN.KMOB.FF.W.0001.000000T0000Z-090104T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ESCAMBIA AL-CONECUH AL-BALDWIN AL-ESCAMBIA FL-SANTA ROSA FL-
747 PM CST SAT JAN 3 2009

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR NORTHWESTERN SANTA
ROSA...NORTHERN ESCAMBIA...CENTRAL BALDWIN...SOUTH CENTRAL CONECUH
AND ESCAMBIA COUNTIES...

LAT...LON 3081 8765 3106 8771 3130 8706 3136 8696
      3113 8691 3095 8684 3083 8733

$$

JW

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 2, 11:58 PM CSTMarine Dense Fog AdvisoryMOB12 hr
Jan 2, 11:59 PM CSTDense Fog AdvisoryMOBButler, Choctaw, Clarke, Conecuh, Covington, Crenshaw and 4 more10 hr
Jan 3, 2:16 PM CSTSevere Thunderstorm WarningMOBEscambia44 min
Jan 3, 2:17 PM CSTSevere Thunderstorm WarningMOBChoctaw, Clarke, Washington20 min
Jan 3, 3:04 PM CSTSevere Thunderstorm WarningMOBEscambia27 min
Jan 3, 3:11 PM CSTSevere Thunderstorm WarningMOBEscambia25 min
Jan 3, 3:24 PM CSTSevere Thunderstorm WarningMOBConecuh, Covington, Escambia51 min
Jan 3, 4:39 PM CSTSpecial Marine WarningMOB111 min
Jan 3, 4:52 PM CSTSevere Thunderstorm WarningMOBCovington53 min
Jan 3, 5:00 PM CSTSevere Thunderstorm WarningMOBCovington, Escambia45 min
Jan 3, 5:32 PM CSTAreal Flood AdvisoryMOBBaldwin, Butler, Conecuh, Covington, Crenshaw, Escambia and 1 more2 hr
Jan 3, 5:54 PM CSTMarine Weather StatementMOB67 min
Jan 3, 5:36 PM CSTSevere Thunderstorm WarningMOBOkaloosa, Santa Rosa39 min

Nearby

Flash Flood Warnings in Alabama, 2009Flash Flood Warnings in Florida, 2009Every flash flood warning in 2009

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.