Alert archive / Florida / Flash Flood Warnings in 2016

Flash Flood Warning 18, NWS Tallahassee, FL

August 9, 2016Dixie County, Florida

NWS Tallahassee, FL issued this flash flood warning at Aug 9, 2016, 12:02 PM EDT for Dixie 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
Aug 9, 2016, 12:02 PM EDT (16:02 UTC)
Expired
Aug 9, 2016, 3:00 PM EDT
In force
3 hr
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon
Flood severity
None

County Dixie County, FL

The radar

The Moody AFB radar (KVAX), 140 km from the middle of the area, began a volume at 16:04 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
Aug 9, 12:59 PM EDTFLASH FLOODHorseshoe Beach, FLROADS IN HORSESHOE BEACH FLOODED AS WELL AS HORSESHOE ROAD. REPORT RELAYED THROUGH NEWSPAPER SOCIAL MEDIA ACCOUNT.

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 12:00Z, 4.0 hours before the alert went out and 140 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 2016-08-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 521 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 2016-08-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -18 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
521 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
511 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
-18 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.

650 
WGUS52 KTAE 091602
FFWTAE
FLC029-091900-
/O.NEW.KTAE.FF.W.0018.160809T1602Z-160809T1900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
1202 PM EDT TUE AUG 9 2016

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  DIXIE COUNTY IN FLORIDA...

* UNTIL 300 PM EDT

* AT 1201 PM EDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA WITH RAINFALL RATES BETWEEN 1
  AND 2 INCHES PER HOUR MOVING SLOWLY. FLASH FLOODING IS EXPECTED TO
  BEGIN SHORTLY GIVEN THE SATURATED CONDITIONS.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  CROSS CITY...HORSESHOE POINT...HORSESHOE BEACH...
  GUARANTO SPRINGS...JENA...FLETCHER...SHIRED ISLAND...JONESBORO...
  CROSS CITY AIRPORT...EUGENE...HINES AND SHAMROCK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 2940 8324 2943 8331 2951 8342 2965 8340
      2967 8336 2982 8324 2983 8301 2982 8294
      2979 8293 2976 8295 2974 8294 2972 8296
      2971 8295 2931 8317

$$

42-DVD
1 follow-up statement
740 
WGUS72 KTAE 091855
FFSTAE

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
255 PM EDT TUE AUG 9 2016

FLC029-091903-
/O.EXP.KTAE.FF.W.0018.000000T0000Z-160809T1900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DIXIE FL-
255 PM EDT TUE AUG 9 2016

...THE FLASH FLOOD WARNING FOR DIXIE COUNTY WILL EXPIRE AT 300 PM
EDT...

THE HEAVY RAINFALL RATES HAVE DIMINISHED...SO THE FLASH FLOOD
WARNING WILL BE ALLOWED TO EXPIRE. HOWEVER...LIGHT TO MODERATE RAIN
WILL CONTINUE FOR THE NEXT SEVERAL HOURS...AND SIGNIFICANT STANDING
WATER STILL EXISTS ACROSS PORTIONS OF THE AREA...INCLUDING AROUND
SOME HOUSES. AN AREAL FLOOD WARNING REMAINS IN EFFECT THROUGH THIS
EVENING. PLEASE CONTINUE TO HEED ANY REMAINING ROAD CLOSURES.

LAT...LON 2940 8324 2943 8331 2951 8342 2965 8340
      2967 8336 2982 8324 2983 8301 2982 8294
      2979 8293 2976 8295 2974 8294 2972 8296
      2971 8295 2931 8317

$$

42-DVD

The office that day

Everything else NWS Tallahassee, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 9, 4:30 AM EDTRip Current StatementTAEBay, Franklin, Gulf, Walton20 hr
Aug 9, 8:04 AM EDTRiver Flood WarningTAEDixie, Taylor8 days
Aug 9, 10:41 AM EDTAreal Flood WarningTAEDixie, Lafayette12 hr

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.