Alert archive / Florida / Flash Flood Warnings in 2016

Flash Flood Warning 28, NWS Mobile, AL

August 4, 2016Escambia County, Santa Rosa County, Florida

NWS Mobile, AL issued this flash flood warning at Aug 4, 2016, 6:45 AM CDT for Escambia County, Santa Rosa County, Florida. It was in force for 3 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
Aug 4, 2016, 6:45 AM CDT (11:45 UTC)
Expired
Aug 4, 2016, 9:45 AM CDT
In force
3 hr
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Flood severity
None

Counties Escambia County, FL, Santa Rosa County, FL

The radar

The Mobile radar (KMOB), 109 km from the middle of the area, began a volume at 11:48 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

TimeReportWhereRemark
Aug 4, 7:08 AM CDTFLASH FLOODGulf Breeze, FLFLOODING ALONG HIGHWAY 98 THROUGHOUT GULF BREEZE. REPORT RECEIVED VIA SOCIAL MEDIA.
Aug 4, 7:45 AM CDTFLASH FLOOD2 Ese Ferry Pass, FL9TH AVENUE NORTH OF I-10 IS UNDER WATER. REPORT RECEIVED VIA SOCIAL MEDIA.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 11.8 hours before the alert went out and 247 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, Slidell Radar S, LA at 00:00Z on 2016-08-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2871 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, Slidell Radar S, LA at 00:00Z on 2016-08-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 39 square meters per square second.1939Sfc1 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
2871 J/kg
Mixed-layer CIN
-30 J/kg
Mixed-layer LCL
1112 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
39 m²/s²
0-3 km storm-relative helicity
25 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

976 
WGUS54 KMOB 041145
FFWMOB
FLC033-113-041445-
/O.NEW.KMOB.FF.W.0028.160804T1145Z-160804T1445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
645 AM CDT THU AUG 4 2016

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN ESCAMBIA COUNTY IN NORTHWESTERN FLORIDA...
  SOUTHERN SANTA ROSA COUNTY IN NORTHWESTERN FLORIDA...

* UNTIL 945 AM CDT

* AT 644 AM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. TWO TO THREE INCHES OF RAIN
  HAS FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  PENSACOLA...FERRY PASS...BRENT...WEST PENSACOLA...ENSLEY...
  WARRINGTON...GONZALEZ...PACE...MILTON...GULF BREEZE...GOULDING...
  BAGDAD...MYRTLE GROVE...ORIOLE BEACH...NAVARRE...PEA RIDGE...
  FLORIDATOWN AND PENSACOLA BEACH.

ADDITIONAL RAINFALL AMOUNTS OF ONE TO TWO INCHES IS POSSIBLE IN THE
WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 3031 8732 3064 8729 3064 8689 3035 8687

$$
1 follow-up statement
080 
WGUS74 KMOB 041315
FFSMOB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
815 AM CDT THU AUG 4 2016

FLC033-113-041445-
/O.CON.KMOB.FF.W.0028.000000T0000Z-160804T1445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ESCAMBIA FL-SANTA ROSA FL-
815 AM CDT THU AUG 4 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 945 AM CDT FOR
SOUTHEASTERN ESCAMBIA AND SOUTHERN SANTA ROSA COUNTIES...

AT 811 AM CDT...THE PUBLIC AND BROADCAST MEDIA HAS REPORTED AREAS OF
FLOODING IN THE PENSACOLA METRO AREA. OVER 5 INCHES OF RAIN HAS BEEN
REPORTED IN PARTS OF PENSACOLA. WHILE THE HEAVY RAIN WILL GRADUALLY
END FROM WEST TO EAST ACROSS THE WARNED AREA THIS MORNING...
ADDITIONAL AND CONTINUED FLOODING IS LIKELY OVER THE NEXT HOUR TO
HOUR AND A HALF...PARTICULARLY IN THE PENSACOLA AREA. 

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
PENSACOLA...FERRY PASS...BRENT...WEST PENSACOLA...ENSLEY...
WARRINGTON...GONZALEZ...PACE...MILTON...GULF BREEZE...GOULDING...
BAGDAD...MYRTLE GROVE...ORIOLE BEACH...NAVARRE...PEA RIDGE...
FLORIDATOWN AND PENSACOLA BEACH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 3031 8732 3064 8729 3064 8689 3035 8687

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 3, 8:56 PM CDTSpecial Weather StatementMOBOkaloosa49 min
Aug 3, 9:47 PM CDTSpecial Weather StatementMOBOkaloosa43 min
Aug 4, 6:19 AM CDTAreal Flood AdvisoryMOBEscambia, Santa Rosa3 hr
Aug 4, 6:25 AM CDTSpecial Weather StatementMOBEscambia50 min
Aug 4, 7:12 AM CDTSpecial Weather StatementMOBEscambia63 min
Aug 4, 7:43 AM CDTSpecial Weather StatementMOBEscambia62 min
Aug 4, 9:07 AM CDTAreal Flood AdvisoryMOBEscambia, Santa Rosa113 min
Aug 4, 9:45 AM CDTFlash Flood WarningMOBEscambia, Santa Rosa3 hr

Nearby

Flash Flood Warnings in Florida, 2016Every flash flood warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.