Alert archive / Florida / Flash Flood Warnings in 2016

Flash Flood Warning 29, NWS Mobile, AL

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

NWS Mobile, AL issued this flash flood warning at Aug 4, 2016, 9:45 AM CDT for Escambia County, Santa Rosa County, Florida; Escambia County, Alabama. It was in force for 3 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
Aug 4, 2016, 9:45 AM CDT (14:45 UTC)
Expired
Aug 4, 2016, 12:45 PM CDT
In force
3 hr
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Flood severity
None

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

The radar

The Mobile radar (KMOB), 98 km from the middle of the area, began a volume at 14:42 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

Slidell Radar S, LA (KSIL), launched 12:00Z, 2.8 hours before the alert went out and 246 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 12:00Z on 2016-08-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2716 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 12:00Z on 2016-08-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -8 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
2716 J/kg
Mixed-layer CIN
-27 J/kg
Mixed-layer LCL
842 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
-8 m²/s²
0-3 km storm-relative helicity
9 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

776 
WGUS54 KMOB 041445
FFWMOB
ALC053-FLC033-113-041745-
/O.NEW.KMOB.FF.W.0029.160804T1445Z-160804T1745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

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

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL ESCAMBIA COUNTY IN SOUTH CENTRAL ALABAMA...
  NORTH CENTRAL ESCAMBIA COUNTY IN NORTHWESTERN FLORIDA...
  NORTHWESTERN SANTA ROSA COUNTY IN NORTHWESTERN FLORIDA...

* UNTIL 1245 PM CDT

* AT 943 AM CDT...DOPPLER RADAR INDICATED PERSISTENT THUNDERSTORMS
  PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. 2 TO 3 INCHES OF RAIN
  HAS OCCURRED OVER THE PAST HOUR. ADDITIONAL HEAVY RAIN WILL LIKELY
  RESULT IN AREAS OF FLASH FLOODING. THIS INCLUDES THE U.S. HIGHWAY
  29 AREA.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  BREWTON...CENTURY...FLOMATON...EAST BREWTON...MOLINO...JAY...
  POLLARD AND RIVERVIEW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3113 8737 3122 8702 3070 8711 3070 8747

$$
1 follow-up statement
073 
WGUS74 KMOB 041554
FFSMOB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1054 AM CDT THU AUG 4 2016

ALC053-041600-
/O.CAN.KMOB.FF.W.0029.000000T0000Z-160804T1745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ESCAMBIA AL-
1054 AM CDT THU AUG 4 2016

...THE FLASH FLOOD WARNING FOR CENTRAL ESCAMBIA COUNTY IS
CANCELLED...

HEAVY RAINFALL HAS ENDED ACROSS ESCAMBIA COUNTY ALABAMA. 

LAT...LON 3100 8740 3100 8711 3070 8714 3070 8747

$$

FLC033-113-041745-
/O.CON.KMOB.FF.W.0029.000000T0000Z-160804T1745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ESCAMBIA FL-SANTA ROSA FL-
1054 AM CDT THU AUG 4 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1245 PM CDT FOR
NORTH CENTRAL ESCAMBIA AND NORTHWESTERN SANTA ROSA COUNTIES...

AT 1050 AM CDT...WHILE THE HEAVY RAIN IS COMING TO AN END...RADAR
INDICATES THAT SOME LOCATIONS NEAR MCDAVID AND CENTURY RECEIVED OVER
4 INCHES OF RAIN IN A THREE HOUR PERIOD. IN ADDITION...FLOODING HAS
BEEN REPORTED ON U.S. HIGHWAY 29 NEAR MOLINO. THEREFORE...SOME
FLOODING ISSUES ARE LIKELY TO PERSIST THROUGH AT LEAST THE NEXT
HOUR. 

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
CENTURY...MCDAVID...AND MOLINO. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3100 8740 3100 8711 3070 8714 3070 8747

$$

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, 6:45 AM CDTFlash Flood WarningMOBEscambia, Santa Rosa3 hr
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 3, 7:25 PM CDTSpecial Marine WarningMOB35 min
Aug 3, 9:23 PM CDTSpecial Marine WarningMOB52 min
Aug 3, 10:03 PM CDTSpecial Marine WarningMOB57 min
Aug 4, 4:04 AM CDTHeat AdvisoryMOBButler, Choctaw, Clarke, Conecuh, Covington, Crenshaw and 4 more14 hr
Aug 4, 6:44 AM CDTSpecial Marine WarningMOB61 min
Aug 4, 7:38 AM CDTSpecial Marine WarningMOB52 min
Aug 4, 8:36 AM CDTSpecial Weather StatementMOBEscambia24 min
Aug 4, 2:58 PM CDTSpecial Weather StatementMOBConecuh47 min
Aug 4, 5:15 PM CDTSpecial Weather StatementMOBCrenshaw45 min

Nearby

Flash Flood Warnings in Florida, 2016Flash Flood Warnings in Alabama, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.