Alert archive / Florida / Flash Flood Warnings in 2010

Flash Flood Warning 9, NWS Mobile, AL

February 5, 2010Okaloosa County, Florida

NWS Mobile, AL issued this flash flood warning at Feb 5, 2010, 3:08 AM CST for Okaloosa County, Florida. It was in force for 112 min. 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 5, 2010, 3:08 AM CST (09:08 UTC)
Expired
Feb 5, 2010, 5:00 AM CST
In force
112 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Flood severity
None

County Okaloosa County, FL

The radar

The Eglin Afb radar (KEVX), 66 km from the middle of the area, began a volume at 09:11 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 5, 3:30 AM CSTFLASH FLOODCrestview, FLNUMEROUS REPORTS OF ROAD CLOSURES DUE TO FLOODING IN OKALOOSA COUNTY AROUND THE CRESTVIEW AREA FROM 0330 THROUGH 0500... ADAMS ROAD, BARNES ROAD, OKALOOSA LANE, FAIRCHILD ROAD, DAIRY ROAD...

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, 9.1 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 2010-02-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2010-02-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 352 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
853 m above ground
0-6 km bulk shear
74 kt
0-1 km storm-relative helicity
352 m²/s²
0-3 km storm-relative helicity
684 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.

629 
WGUS54 KMOB 050908
FFWMOB
FLC091-051100-
/O.NEW.KMOB.FF.W.0009.100205T0908Z-100205T1100Z/
/00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
308 AM CST FRI FEB 5 2010

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN OKALOOSA COUNTY IN NORTHWEST FLORIDA...
  THIS INCLUDES THE CITY OF CRESTVIEW...

* UNTIL 500 AM CST

* AT 303 AM CST...NATIONAL WEATHER SERVICE RADAR INDICATED A BROAD
  AREA OF HEAVY RAINS WHICH HAVE CONTINUED TO FALL OVER NORTHERN
  OKALOOSA COUNTY OVER THE LAST THREE HOURS.  RAINFALL AMOUNTS OVER
  THE LAST THREE HOURS TOTAL AS MUCH AS BETWEEN 2.5 TO 3 INCHES
  AND ADDITIONAL RAINFALL AMOUNTS AROUND ONE INCH OVER THE NEXT
  HOUR WILL RESULT IN FLASH FLOODING OVER NORTHERN OKALOOSA COUNTY.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO PEADEN...
  DORCAS...CANNON TOWN AND BAKER

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

LAT...LON 3070 8653 3060 8672 3078 8677 3087 8674
      3095 8648 3078 8638 3075 8638

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 4, 11:20 PM CSTAreal Flood AdvisoryMOBEscambia115 min
Feb 5, 12:36 AM CSTAreal Flood AdvisoryMOBEscambia, Okaloosa, Santa Rosa114 min
Feb 5, 2:22 AM CSTAreal Flood AdvisoryMOBEscambia, Okaloosa, Santa Rosa113 min

Nearby

Flash Flood Warnings in Florida, 2010Every flash flood warning in 2010

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.