Alert archive / Alabama / Flash Flood Watches in 2016

Flash Flood Watch 1, NWS Mobile, AL

February 3, 2016Escambia County, Okaloosa County, Santa Rosa County, Florida; 6 counties in Alabama

NWS Mobile, AL issued this flash flood watch at Feb 3, 2016, 4:38 AM CST for Escambia County, Okaloosa County, Santa Rosa County, Florida; 6 counties in Alabama. It took effect at Feb 3, 2016, 7:00 AM CST. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Feb 3, 2016, 4:38 AM CST (10:38 UTC)
In effect from
Feb 3, 2016, 7:00 AM CST
Expired
Feb 3, 2016, 2:14 PM CST
In force
7 hr
Issued by
NWS Mobile, AL
Flood severity
None

Counties Baldwin County, AL, Butler County, AL, Conecuh County, AL, Covington County, AL, Crenshaw County, AL, Escambia County, AL, Escambia County, FL, Okaloosa County, FL, Santa Rosa County, FL

The radar

The Eglin Afb radar (KEVX), 113 km from the middle of the area, began a volume at 10:39 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 00:00Z, 10.6 hours before the alert went out and 231 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 00:00Z on 2016-02-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 313 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 00:00Z on 2016-02-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 371 square meters per square second.1939587897Sfc1 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
313 J/kg
Mixed-layer CIN
-40 J/kg
Mixed-layer LCL
765 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
371 m²/s²
0-3 km storm-relative helicity
518 m²/s²
Significant tornado parameter
0.9
Supercell composite
5.2

Open this sounding in Storm Lab

The text

As transmitted.

259 
WGUS64 KMOB 031038
FFAMOB

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE MOBILE AL
438 AM CST WED FEB 3 2016

...HEAVY RAIN POTENTIAL SETS UP EAST OF INTERSTATE 65 BRINGING THE
THREAT FOR LOCALIZED FLASH FLOODING...

.RICH GULF MOISTURE IS SPREADING NORTHWARD OFF THE GULF...AHEAD OF A
SLOW EASTWARD ADVANCING COLD FRONT. THE SLOW MOVING FRONT IS
INCREASING THE POTENTIAL FOR A HEAVY RAIN SET UP AND LOCALIZED FLASH
FLOODING MAINLY ALONG AND EAST OF THE INTERSTATE 65 CORRIDOR THIS
MORNING...POSSIBLY CARRYING OVER INTO THE AFTERNOON. 

ALZ056>060-264-266-FLZ201>206-031800-
/O.NEW.KMOB.FF.A.0001.160203T1300Z-160204T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CONECUH-BUTLER-CRENSHAW-ESCAMBIA-COVINGTON-BALDWIN CENTRAL-
BALDWIN COASTAL-ESCAMBIA INLAND-ESCAMBIA COASTAL-
SANTA ROSA INLAND-SANTA ROSA COASTAL-OKALOOSA INLAND-
OKALOOSA COASTAL-
INCLUDING THE CITIES OF...EVERGREEN...GREENVILLE...LUVERNE...
BRANTLEY...ATMORE...BREWTON...FLOMATON...ANDALUSIA...OPP...
DAPHNE...FAIRHOPE...FOLEY...SPANISH FORT...GULF SHORES...
CENTURY...MOLINO...PENSACOLA...ENSLEY...JAY...MILTON...
GULF BREEZE...CRESTVIEW...WRIGHT...FORT WALTON BEACH...
NICEVILLE...DESTIN...SEMINOLE...EGLIN AFB...VALPARAISO
438 AM CST WED FEB 3 2016

...FLASH FLOOD WATCH IN EFFECT THROUGH THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WATCH FOR PORTIONS OF ALABAMA AND NORTHWEST 
  FLORIDA...INCLUDING THE FOLLOWING AREAS...IN ALABAMA...BALDWIN 
  CENTRAL...BALDWIN COASTAL...BUTLER...CONECUH...COVINGTON... 
  CRENSHAW AND ESCAMBIA. IN NORTHWEST FLORIDA...ESCAMBIA 
  COASTAL...ESCAMBIA INLAND...OKALOOSA COASTAL...OKALOOSA 
  INLAND...SANTA ROSA COASTAL AND SANTA ROSA INLAND. 

* THROUGH THIS AFTERNOON

* 2 TO 4 INCHES POSSIBLE OVER THE WATCH AREA WITH LOCALIZED HIGHER
  AMOUNTS POTENTIALLY EXCEEDING FLASH FLOOD GUIDANCE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.

YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.

&&

$$
2 follow-up statements
812 
WGUS64 KMOB 031520 AAA
FFAMOB

FLOOD WATCH...UPDATED
NATIONAL WEATHER SERVICE MOBILE AL
920 AM CST WED FEB 3 2016

...HEAVY RAIN POTENTIAL SHIFTING MOSTLY EAST OF AREA BUT CONTINUES
FOR OKALOOSA COUNTY IN THE NORTHWEST FLORIDA PANHANDLE...

.A POTENTIAL FOR FLASH FLOODING CONTINUES FOR OKALOOSA COUNTY IN THE
NORTHWEST FLORIDA PANHANDLE...BUT HAS ENDED FOR THE REMAINDER OF THE
AREA.

ALZ056>060-264-266-FLZ201>204-031630-
/O.CAN.KMOB.FF.A.0001.000000T0000Z-160204T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CONECUH-BUTLER-CRENSHAW-ESCAMBIA-COVINGTON-BALDWIN CENTRAL-
BALDWIN COASTAL-ESCAMBIA INLAND-ESCAMBIA COASTAL-
SANTA ROSA INLAND-SANTA ROSA COASTAL-
920 AM CST WED FEB 3 2016

...FLASH FLOOD WATCH IS CANCELLED...

THE FLASH FLOOD WATCH FOR PORTIONS OF ALABAMA AND NORTHWEST
FLORIDA HAS BEEN CANCELLED. THE HEAVY RAINS HAVE SHIFTED EAST OF THE
AREA AND THE POTENTIAL FOR HEAVY RAINFALL HAS ENDED.

$$

FLZ205-206-032330-
/O.CON.KMOB.FF.A.0001.000000T0000Z-160204T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
OKALOOSA INLAND-OKALOOSA COASTAL-
INCLUDING THE CITIES OF...CRESTVIEW...WRIGHT...
FORT WALTON BEACH...NICEVILLE...DESTIN...SEMINOLE...EGLIN AFB...
VALPARAISO
920 AM CST WED FEB 3 2016

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

THE FLASH FLOOD WATCH CONTINUES FOR

* A PORTION OF NORTHWEST FLORIDA...INCLUDING THE FOLLOWING 
  AREAS...OKALOOSA COASTAL AND OKALOOSA INLAND. 

* UNTIL 6 PM CST THIS EVENING

* 1 TO 3 INCHES POSSIBLE OVER THE WATCH AREA WITH LOCALIZED HIGHER
  AMOUNTS POTENTIALLY EXCEEDING FLASH FLOOD GUIDANCE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.

YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.

&&

$$
872 
WGUS64 KMOB 032014
FFAMOB

FLOOD WATCH
NATIONAL WEATHER SERVICE MOBILE AL
214 PM CST WED FEB 3 2016

...FLASH FLOOD WATCH HAS BEEN CANCELLED...

.THE HEAVY RAINS HAVE SHIFTED EAST OF THE AREA...ENDING THE THREAT OF
FLASH FLOODING FOR THE AREA.

FLZ205-206-032115-
/O.CAN.KMOB.FF.A.0001.000000T0000Z-160204T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
OKALOOSA INLAND-OKALOOSA COASTAL-
214 PM CST WED FEB 3 2016

...FLASH FLOOD WATCH IS CANCELLED...

THE FLASH FLOOD WATCH FOR A PORTION OF NORTHWEST FLORIDA HAS BEEN
CANCELLED. THE HEAVY RAINS HAVE SHIFTED EAST OF THE AREA...ENDING THE
THREAT OF FLASH FLOODING FOR THE AREA.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 3, 7:39 AM CSTSpecial Weather StatementMOBOkaloosa, Santa Rosa66 min
Feb 3, 7:49 AM CSTSevere Thunderstorm WarningMOBOkaloosa, Santa Rosa36 min
Feb 3, 8:37 AM CSTSpecial Weather StatementMOBOkaloosa38 min
Feb 3, 8:52 AM CSTAreal Flood AdvisoryMOBOkaloosa53 min
Feb 3, 9:13 AM CSTSpecial Weather StatementMOBOkaloosa32 min
Feb 3, 9:20 AM CSTRiver Flood WarningMOBEscambia5 days
Feb 3, 9:35 AM CSTRiver Flood WarningMOBOkaloosa3 days
Feb 3, 10:01 AM CSTAreal Flood AdvisoryMOBOkaloosa119 min
Feb 3, 10:28 AM CSTFlash Flood WarningMOBOkaloosa3 hr
Feb 3, 2:16 AM CSTSpecial Weather StatementMOBClarke, Washington, Wilcox89 min
Feb 3, 3:46 AM CSTSpecial Marine WarningMOB59 min
Feb 3, 4:14 AM CSTSpecial Weather StatementMOBBaldwin, Mobile61 min
Feb 3, 4:42 AM CSTSpecial Marine WarningMOB63 min
Feb 3, 5:44 AM CSTSpecial Weather StatementMOBCovington61 min
Feb 3, 6:07 AM CSTSpecial Marine WarningMOB83 min
Feb 3, 6:14 AM CSTTornado WarningMOBCovington, Crenshaw28 min
Feb 3, 6:27 AM CSTTornado WarningMOBCovington, Crenshaw16 min
Feb 3, 6:48 AM CSTSpecial Marine WarningMOB87 min
Feb 3, 8:07 AM CSTSpecial Marine WarningMOB83 min
Feb 3, 9:22 AM CSTSpecial Marine WarningMOB53 min
Feb 3, 10:18 AM CSTSpecial Marine WarningMOB117 min
Feb 3, 2:13 PM CSTRiver Flood WarningMOBClarke, Monroe, Wilcox5 days
Feb 3, 3:22 PM CSTSmall Craft AdvisoryMOB45 hr

Nearby

Flash Flood Watches in Alabama, 2016Flash Flood Watches in Florida, 2016Every flash flood watch in 2016

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.