Alert archive / Florida / Flash Flood Warnings in 2015

Flash Flood Warning 3, NWS Tallahassee, FL

April 12, 2015Jackson County, Washington County, Florida

NWS Tallahassee, FL issued this flash flood warning at Apr 12, 2015, 6:27 PM CDT for Jackson County, Washington County, Florida. It was in force for 3 hr. 5 reports 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
Apr 12, 2015, 6:27 PM CDT (23:27 UTC)
Expired
Apr 12, 2015, 9:30 PM CDT
In force
3 hr
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon
Flood severity
None

Counties Jackson County, FL, Washington County, FL

What was reported inside it

TimeReportWhereRemark
Apr 12, 7:20 PM CDTFLASH FLOODChipley, FLSOME ROADS BEING BLOCKED OFF DUE TO FLOODING AROUND OLD BONIFAY ROAD AND MARTIN LUTHER KING ROAD...MAINLY NORTH OF HIGHWAY 90.
Apr 12, 7:40 PM CDTHEAVY RAIN 3.5Kynesville, FLSOCIAL MEDIA REPORT OF 3.50 INCHES OF RAIN IN KYNESVILLE. MOST OF THIS RAIN HAS FALLEN IN ABOUT 3 HOURS.
Apr 12, 8:26 PM CDTFLASH FLOOD2 Nne Cottondale, FLROAD IMPASSABLE DUE TO WATER AT BONNET POND RD AND HIGHWAY 231.
Apr 12, 8:26 PM CDTFLASH FLOODAlford, FLCORBIN RD NORTH OF ALFORD IS CLOSED AND IMPOSSIBLE. REPORT FORWARDED BY WMBB METEOROLOGIST.
Apr 12, 8:26 PM CDTFLASH FLOODW Cottondale, FLROAD IMPASSABLE DUE TO WATER ON HIGHWAY 90 WEST OF COTTONDALE.

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, 11.5 hours before the alert went out and 129 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 2015-04-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 141 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 2015-04-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 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
141 J/kg
Mixed-layer CIN
-35 J/kg
Mixed-layer LCL
738 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
100 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

981 
WGUS52 KTAE 122327
FFWTAE
FLC063-133-130230-
/O.NEW.KTAE.FF.W.0003.150412T2327Z-150413T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
627 PM CDT SUN APR 12 2015

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WESTERN JACKSON COUNTY IN THE PANHANDLE OF FLORIDA...
  NORTHEASTERN WASHINGTON COUNTY IN THE PANHANDLE OF FLORIDA...

* UNTIL 930 PM CDT
    
* AT 627 PM CDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. FLASH FLOODING IS EXPECTED TO
  BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  CHIPLEY...GRACEVILLE...BRADFORD...COTTONDALE...ALFORD...
  CAMPBELLTON...CHIPLEY MUNICIPAL AIRPORT...SUNNY HILLS...
  BROWNTOWN...RICHTER CROSSROADS...COTTONDALE AIRPORT...ROUND LAKE...
  BAHOMA...BROCK CROSSROAD...KYNESVILLE...POPLAR HEAD...SILLS...
  ELLAVILLE...JACOBS AND RIDGETOP.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 3075 8565 3074 8562 3077 8562 3080 8560
      3086 8560 3089 8558 3093 8555 3094 8553
      3097 8553 3100 8550 3100 8526 3062 8528
      3066 8568

$$

42-DVD
1 follow-up statement
076 
WGUS72 KTAE 130139
FFSTAE

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
839 PM CDT SUN APR 12 2015

FLC063-133-130230-
/O.CON.KTAE.FF.W.0003.000000T0000Z-150413T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
JACKSON FL-WASHINGTON FL-
839 PM CDT SUN APR 12 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 930 PM CDT FOR
WESTERN JACKSON AND NORTHEASTERN WASHINGTON COUNTIES...

AT 836 PM CDT...LOCAL LAW ENFORCEMENT REPORTED FLASH FLOODING DUE TO 
A SLOW MOVING HEAVY RAIN BAND. ROADS HAVE BEEN REPORTED TO BE 
IMPASSIBLE IN THE COTTONDALE AREA OF JACKSON COUNTY. RADAR INDICATES 
UP TO SEVEN INCHES OF RAIN HAVE ALREADY FALLEN NEAR COTTONDALE WITH 
HEAVY RAINFALL OVER THE ENTIRE WARNED AREA. FLASH FLOODING IS 
ALREADY OCCURRING.

SOME LOCATIONS THAT MAY EXPERIENCE FLOODING INCLUDE... 
CHIPLEY...GRACEVILLE...BRADFORD...COTTONDALE...ALFORD... 
CAMPBELLTON...SUNNY HILLS...BROWNTOWN...ROUND LAKE...BAHOMA... 
KYNESVILLE...POPLAR HEAD...ELLAVILLE...JACOBS AND RIDGETOP.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

&&

LAT...LON 3075 8565 3074 8562 3077 8562 3080 8560
      3086 8560 3089 8558 3093 8555 3094 8553
      3097 8553 3100 8550 3100 8526 3062 8528
      3066 8568

$$

08-LAMERS

Nearby

Flash Flood Warnings in Florida, 2015Every flash flood warning in 2015

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.