Alert archive / Florida / Flash Flood Warnings in 2014

Flash Flood Warning 39, NWS Mobile, AL

June 7, 2014Okaloosa County, Santa Rosa County, Florida

NWS Mobile, AL issued this flash flood warning at Jun 7, 2014, 6:56 PM CDT for Okaloosa County, Santa Rosa County, Florida. It was in force for 2 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
Jun 7, 2014, 6:56 PM CDT (23:56 UTC)
Expired
Jun 7, 2014, 9:00 PM CDT
In force
2 hr
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Flood severity
None

Counties Okaloosa County, FL, Santa Rosa County, FL

The radar

The Eglin Afb radar (KEVX), 90 km from the middle of the area, began a volume at 23:57 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 12:00Z, 11.9 hours before the alert went out and 245 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 12:00Z on 2014-06-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 43 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 12:00Z on 2014-06-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 75 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
43 J/kg
Mixed-layer CIN
-320 J/kg
Mixed-layer LCL
1009 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
75 m²/s²
0-3 km storm-relative helicity
102 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

369 
WGUS54 KMOB 072356
FFWMOB
FLC091-113-080200-
/O.NEW.KMOB.FF.W.0039.140607T2356Z-140608T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
656 PM CDT SAT JUN 7 2014

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WEST CENTRAL OKALOOSA COUNTY IN NORTHWEST FLORIDA...
  NORTHERN SANTA ROSA COUNTY IN NORTHWEST FLORIDA...

* UNTIL 900 PM CDT

* AT 655 PM CDT...VERY HEAVY RAINFALL WAS INDICATED OVER THE WARNED
  AREA AND RADAR ESTIMATES SHOW 2 TO 3 INCHES OF RAINFALL HAS
  OCCURRED OVER THE PAST HOUR. THIS WILL LIKELY CAUSE FLASH FLOODING
  IN THE WARNED AREA.

* LOCATIONS IMPACTED INCLUDE...
  WHITFIELD...          PINE LEVEL...         BAKER...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

NEVER TRY TO CROSS OR PLAY IN AN URBAN SPILLWAY OR FLOWING CREEK...
EVEN A SMALL ONE. URBAN FLASH FLOODING IS A MAJOR KILLER.

&&

LAT...LON 3088 8663 3079 8660 3070 8663 3072 8706
      3092 8719 3100 8694

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 7, 3:55 PM CDTSevere Thunderstorm WarningMOBOkaloosa35 min
Jun 7, 4:19 PM CDTSevere Thunderstorm WarningMOBOkaloosa26 min
Jun 7, 4:30 PM CDTSevere Thunderstorm WarningMOBOkaloosa30 min
Jun 7, 4:57 PM CDTFlash Flood WarningMOBOkaloosa2 hr
Jun 7, 5:02 PM CDTSevere Thunderstorm WarningMOBOkaloosa28 min
Jun 7, 5:22 PM CDTSevere Thunderstorm WarningMOBOkaloosa, Santa Rosa23 min
Jun 7, 5:53 PM CDTSevere Thunderstorm WarningMOBOkaloosa, Santa Rosa37 min
Jun 7, 6:23 PM CDTSevere Thunderstorm WarningMOBEscambia, Santa Rosa37 min

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.