Alert archive / Florida / Flash Flood Warnings in 2013

Flash Flood Warning 49, NWS Mobile, AL

September 3, 2013Okaloosa County, Santa Rosa County, Florida

NWS Mobile, AL issued this flash flood warning at Sep 3, 2013, 2:07 PM CDT for Okaloosa County, Santa Rosa County, Florida. It was in force for 113 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Sep 3, 2013, 2:07 PM CDT (19:07 UTC)
Expired
Sep 3, 2013, 4:00 PM CDT
In force
113 min
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), 88 km from the middle of the area, began a volume at 19:10 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, 7.1 hours before the alert went out and 244 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 2013-09-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1813 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 2013-09-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 25 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
1813 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
657 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
25 m²/s²
0-3 km storm-relative helicity
13 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.

083 
WGUS54 KMOB 031907
FFWMOB
FLC091-113-032100-
/O.NEW.KMOB.FF.W.0049.130903T1907Z-130903T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
207 PM CDT TUE SEP 3 2013

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

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

* UNTIL 400 PM CDT

* AT 203 PM CDT...VERY HEAVY RAINFALL WAS INDICATED OVER THE WARNED
  AREA AND RADAR ESTIMATES SHOW 2 TO 5 INCHES OF RAINFALL HAS
  OCCURRED OVER THE PAST HOUR WITH HEAVY RAINFALL CONTINUING TO
  OCCUR. THIS WILL LIKELY CAUSE FLASH FLOODING IN THE WARNED AREA.

* LOCATIONS IMPACTED INCLUDE...
  RURAL EAST CENTRAL SANTA ROSA COUNTY
  RURAL WEST CENTRAL OKALOOSA COUNTY

LAT...LON 3086 8673 3067 8669 3070 8698 3089 8690

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 3, 2:42 PM CDTAreal Flood AdvisoryMOBSanta Rosa2 hr
Sep 3, 2:59 PM CDTSevere Thunderstorm WarningMOBEscambia, Santa Rosa31 min
Sep 3, 3:21 PM CDTAreal Flood AdvisoryMOBEscambia, Santa Rosa114 min
Sep 3, 4:48 PM CDTAreal Flood AdvisoryMOBEscambia117 min

Nearby

Flash Flood Warnings in Florida, 2013Every flash flood warning in 2013

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.