Alert archive / Florida / Flash Flood Warnings in 2016

Flash Flood Warning 5, NWS Mobile, AL

February 23, 2016Okaloosa County, Florida

NWS Mobile, AL issued this flash flood warning at Feb 23, 2016, 9:32 PM CST for Okaloosa County, Florida. It was in force for 3 hr. 1 report 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
Feb 23, 2016, 9:32 PM CST (03:32 UTC)
Expired
Feb 24, 2016, 12:30 AM CST
In force
3 hr
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Flood severity
None

County Okaloosa County, FL

The radar

The Eglin Afb radar (KEVX), 65 km from the middle of the area, began a volume at 03:33 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
Feb 23, 9:35 PM CSTFLASH FLOODCrestview, FLNUMEROUS REPORTS OF ROADS FLOODED.

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

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 3.5 hours before the alert went out and 221 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 2016-02-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 100 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 2016-02-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 120 square meters per square second.1939587897Sfc1 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
100 J/kg
Mixed-layer CIN
-47 J/kg
Mixed-layer LCL
605 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
120 m²/s²
0-3 km storm-relative helicity
177 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

532 
WGUS54 KMOB 240332
FFWMOB
FLC091-240630-
/O.NEW.KMOB.FF.W.0005.160224T0332Z-160224T0630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
932 PM CST TUE FEB 23 2016

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  OKALOOSA COUNTY IN NORTHWESTERN FLORIDA...

* UNTIL 1230 AM CST
    
* AT 932 PM CST...DOPPLER RADAR INDICATED A SERIES OF THUNDERSTORMS
  PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. FLASH FLOODING IS
  EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  CRESTVIEW...FORT WALTON BEACH...VALPARAISO...MARY ESTHER...OCEAN CITY...
  EGLIN AFB...LAKE LORRAINE...WRIGHT...SHALIMAR...LAUREL HILL...CINCO
  BAYOU AND FORT WALTON BEACH--NAVARRE--WRIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW! ACT QUICKLY TO PROTECT YOUR LIFE.

&&

LAT...LON 3041 8666 3041 8680 3060 8680 3098 8650
      3099 8639 3073 8639 3045 8653 3043 8657
      3043 8659 3046 8660 3043 8661 3043 8660
      3041 8659 3040 8660 3040 8673

$$
1 follow-up statement
230 
WGUS74 KMOB 240539
FFSMOB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1139 PM CST TUE FEB 23 2016

FLC091-240548-
/O.CAN.KMOB.FF.W.0005.000000T0000Z-160224T0630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
OKALOOSA FL-
1139 PM CST TUE FEB 23 2016

...THE FLASH FLOOD WARNING FOR OKALOOSA COUNTY IS CANCELLED...

THE HEAVY RAIN HAS ENDED. FLOODING IS NO LONGER EXPECTED TO POSE A
THREAT. 

LAT...LON 3041 8666 3041 8680 3060 8680 3098 8650
      3099 8639 3073 8639 3045 8653 3043 8657
      3043 8659 3046 8660 3043 8661 3043 8660
      3041 8659 3040 8660 3040 8673

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 23, 7:13 PM CSTTornado Warning Considerable damage threatMOBEscambia62 min
Feb 23, 7:23 PM CSTSevere Thunderstorm WarningMOBOkaloosa, Santa Rosa67 min
Feb 23, 7:28 PM CSTAreal Flood AdvisoryMOBEscambia2 hr
Feb 23, 8:05 PM CSTTornado WarningMOBOkaloosa, Santa Rosa25 min
Feb 23, 8:12 PM CSTTornado Warning Considerable damage threatMOBEscambia, Santa Rosa33 min
Feb 23, 8:30 PM CSTFlash Flood WarningMOBEscambia2 hr
Feb 23, 8:31 PM CSTSevere Thunderstorm WarningMOBOkaloosa29 min
Feb 23, 8:39 PM CSTTornado WarningMOBOkaloosa36 min
Feb 23, 8:43 PM CSTTornado WarningMOBOkaloosa, Santa Rosa32 min
Feb 23, 9:09 PM CSTTornado WarningMOBOkaloosa21 min
Feb 23, 9:29 PM CSTSevere Thunderstorm WarningMOBOkaloosa, Santa Rosa46 min
Feb 23, 10:19 PM CSTSpecial Weather StatementMOBOkaloosa41 min
Feb 24, 2:39 AM CSTRiver Flood WarningMOBOkaloosa4 days

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.