Alert archive / Florida / Flash Flood Warnings in 2014

Flash Flood Warning 17, NWS Mobile, AL

April 14, 2014Escambia County, Okaloosa County, Santa Rosa County, Florida

NWS Mobile, AL issued this flash flood warning at Apr 14, 2014, 10:06 PM CDT for Escambia County, Okaloosa County, Santa Rosa County, Florida. 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
Apr 14, 2014, 10:06 PM CDT (03:06 UTC)
Expired
Apr 15, 2014, 1:00 AM CDT
In force
3 hr
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Flood severity
None

Counties Escambia County, FL, Okaloosa County, FL, Santa Rosa County, FL

The radar

The Mobile radar (KMOB), 108 km from the middle of the area, began a volume at 03:07 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

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 3.1 hours before the alert went out and 272 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, Tallahassee Rgnl, FL at 00:00Z on 2014-04-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 127 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, Tallahassee Rgnl, FL at 00:00Z on 2014-04-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 66 square meters per square second.19395878Sfc1 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
127 J/kg
Mixed-layer CIN
-66 J/kg
Mixed-layer LCL
840 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
66 m²/s²
0-3 km storm-relative helicity
58 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

Open this sounding in Storm Lab

The text

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

827 
WGUS54 KMOB 150306
FFWMOB
FLC033-091-113-150600-
/O.NEW.KMOB.FF.W.0017.140415T0306Z-140415T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1006 PM CDT MON APR 14 2014

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN ESCAMBIA COUNTY IN NORTHWEST FLORIDA...
  WESTERN OKALOOSA COUNTY IN NORTHWEST FLORIDA...
  SANTA ROSA COUNTY IN NORTHWEST FLORIDA...

* UNTIL 100 AM CDT

* AT 1004 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED   
  SHOWERS AND THUNDERSTORMS PRODUCING VERY HEAVY RAINFALL OVER 
  MUCH OF SOUTHEASTERN ESCAMBIA...SANTA ROSA...AND WESTERN OKALOOSA
  COUNTIES. RADAR ESTIMATES SHOW THAT 2 TO 4 INCHES OF RAIN HAS FALLEN
  AND ADDITIONAL HEAVY RAINS WILL SPREAD OVER THE WARNED AREA DURING
  THE NEXT HOUR. EXCESSIVE RUNOFF WILL LIKELY CAUSE FLASH FLOODING IN 
  THE WARNED AREA.

* LOCATIONS IMPACTED INCLUDE...
  PENSACOLA INTERNATIONAL AIRPORT...          ROEVILLE...
  PEA RIDGE...          MULAT...              HOLLEY...
  FLORIDATOWN...        PACE...               MILTON...
  BAGDAD...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS FLOODING IS IMMINENT OR OCCURRING. SEEK
HIGHER GROUND IMMEDIATELY. DO NOT DRIVE OR WALK INTO AREAS WHERE
WATER CROSSES A ROAD. TURN AROUND - DON'T DROWN!

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

&&

LAT...LON 3032 8745 3043 8735 3048 8741 3076 8691
      3100 8713 3099 8656 3051 8663 3042 8698
      3045 8695 3054 8703 3040 8707 3039 8711
      3050 8710 3057 8717 3038 8712 3042 8717
      3037 8717 3039 8723 3035 8727 3029 8755

$$
1 follow-up statement
656 
WGUS74 KMOB 150600
FFSMOB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
100 AM CDT TUE APR 15 2014

FLC033-091-113-150608-
/O.EXP.KMOB.FF.W.0017.000000T0000Z-140415T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
OKALOOSA FL-SANTA ROSA FL-ESCAMBIA FL-
100 AM CDT TUE APR 15 2014

...THE FLASH FLOOD WARNING WILL BE ALLOWED TO EXPIRE FOR 
SOUTHEASTERN ESCAMBIA...SANTA ROSA AND WESTERN OKALOOSA 
COUNTIES...BUT WILL BE REPLACED WITH AN AREAL FLOOD WARNING...

AT 1253 AM CDT...THE HEAVY RAINFALL THAT PROMPTED THE WARNING FOR 
SOUTHEASTERN ESCAMBIA...SANTA ROSA AND WESTERN OKALOOSA COUNTIES HAS 
SUBSIDED SUFFICIENTLY THAT THE THREAT OF FLASH FLOODING HAS ENDED.  
HOWEVER...A NEW AREAL FLOOD WARNING WILL BE ISSUED WILL COVER MUCH 
OF THE WARNED AREA TO ALLOW FOR POOR DRAINAGE AREAS TO DRAIN.

IF YOU ARE IN DANGER FROM THE FLOOD WATERS AND NEED RESCUE ASSISTANCE
CALL 911. TO REPORT FLOODING TO THE NATIONAL WEATHER SERVICE CALL 
(800) 284-9059.

LAT...LON 3032 8745 3043 8735 3048 8741 3076 8691
      3100 8713 3099 8656 3051 8663 3042 8698
      3045 8695 3054 8703 3040 8707 3039 8711
      3050 8710 3057 8717 3038 8712 3042 8717
      3037 8717 3039 8723 3035 8727 3029 8755

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 14, 8:28 PM CDTSevere Thunderstorm WarningMOBEscambia, Santa Rosa62 min
Apr 14, 8:48 PM CDTFlash Flood WarningMOBEscambia, Santa Rosa117 min
Apr 14, 8:50 PM CDTSevere Thunderstorm WarningMOBOkaloosa55 min
Apr 14, 10:45 PM CDTAreal Flood WarningMOBEscambia, Santa Rosa6 hr
Apr 14, 10:54 PM CDTFlash Flood WarningMOBOkaloosa, Santa Rosa3 hr
Apr 15, 1:09 AM CDTAreal Flood WarningMOBEscambia, Okaloosa, Santa Rosa6 hr
Apr 15, 1:46 AM CDTAreal Flood WarningMOBOkaloosa, Santa Rosa6 hr
Apr 15, 2:08 AM CDTRiver Flood WarningMOBOkaloosa65 hr
Apr 15, 4:49 AM CDTFreeze WatchMOB9 hr
Apr 15, 4:49 AM CDTWind AdvisoryMOB13 hr
Apr 15, 9:30 AM CDTRiver Flood WarningMOBEscambia14 hr

Nearby

Flash Flood Warnings in Florida, 2014Every flash flood warning in 2014

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.