Alert archive / Florida / Flash Flood Warnings in 2016

Flash Flood Warning 13, NWS Tallahassee, FL

July 21, 2016Jackson County, Washington County, Florida; Houston County, Alabama

NWS Tallahassee, FL issued this flash flood warning at Jul 21, 2016, 6:32 PM CDT for Jackson County, Washington County, Florida; Houston County, Alabama. It was in force for 3 hr. 7 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
Jul 21, 2016, 6:32 PM CDT (23:32 UTC)
Expired
Jul 21, 2016, 9:30 PM CDT
In force
3 hr
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon
Flood severity
None

Counties Houston County, AL, Jackson County, FL, Washington County, FL

The radar

The Eglin Afb radar (KEVX), 58 km from the middle of the area, began a volume at 23:32 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
Jul 21, 7:15 PM CDTFLASH FLOOD2 Sse Campbellton, FLHIGHWAY 231 SOUTH OF CAMPBELLTON REPORTED FLOODED
Jul 21, 7:15 PM CDTFLASH FLOOD3 N Cottonwood, ALCOUNTY ROAD 33 AT COTTONWOOD ROAD REPORTED UNDERWATER
Jul 21, 7:15 PM CDTFLASH FLOOD3 Nw Cottonwood, ALCOUNTY ROAD 33 AT WILLIE VARNUM ROAD REPORTED UNDERWATER
Jul 21, 7:15 PM CDTFLASH FLOOD4 Ese Jacobs, FLSAFARI ROAD AT UNION ROAD REPORTED FLOODED
Jul 21, 7:15 PM CDTFLASH FLOOD4 Nne Richter Crossroad, FLHIGHWAY 273 ABOUT 1 MILE WEST OF PEANUT ROAD REPORTED FLOODED
Jul 21, 7:43 PM CDTFLASH FLOOD2 Se Campbellton, FLWILMINGTON CT CLOSED AT HIGHWAY 231 DUE TO FLOODING
Jul 21, 8:30 PM CDTFLASH FLOOD2 Ese Merritts Crossroa, ALCOBB ROAD COLLAPSED AND IS BARRICADED

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 128 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 2016-07-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1377 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 2016-07-21The 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
1377 J/kg
Mixed-layer CIN
-34 J/kg
Mixed-layer LCL
1014 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
-18 m²/s²
0-3 km storm-relative helicity
16 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

521 
WGUS52 KTAE 212332
FFWTAE
ALC069-FLC063-133-220230-
/O.NEW.KTAE.FF.W.0013.160721T2332Z-160722T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
632 PM CDT THU JUL 21 2016

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTH CENTRAL HOUSTON COUNTY IN ALABAMA...
  NORTHEASTERN WASHINGTON COUNTY IN FLORIDA...
  NORTHWESTERN JACKSON COUNTY IN FLORIDA...

* UNTIL 930 PM CDT

* AT 632 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. UP TO THREE INCHES OF RAIN HAVE
  ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  COTTONWOOD...CHIPLEY...GRACEVILLE...DOTHAN...TAYLOR...REHOBETH...
  COTTONDALE...ALFORD...MADRID...CAMPBELLTON...MEMPHIS...BROWNTOWN...
  RICHTER CROSSROADS...GRANGEBURG...SOUTHERN JUNCTION...
  HODGESVILLE...BAHOMA...KYNESVILLE...OLYMPIA SPA RESORT AND JACOBS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3089 8558 3094 8553 3097 8553 3100 8549
      3118 8549 3113 8517 3068 8533 3070 8564

$$

42-DVD
2 follow-up statements
416 
WGUS72 KTAE 220022
FFSTAE

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
722 PM CDT THU JUL 21 2016

ALC069-FLC063-133-220230-
/O.CON.KTAE.FF.W.0013.000000T0000Z-160722T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HOUSTON AL-WASHINGTON FL-JACKSON FL-
722 PM CDT THU JUL 21 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 930 PM CDT FOR
SOUTH CENTRAL HOUSTON...NORTHEASTERN WASHINGTON AND NORTHWESTERN
JACKSON COUNTIES...

AT 720 PM CDT...LOCAL LAW ENFORCEMENT REPORTED FLASH FLOODING ACROSS
PORTIONS OF SOUTHERN HOUSTON AND NORTHWEST JACKSON COUNTIES WITH
SOME ROADS FLOODED. OVER 4 INCHES OF RAIN HAS ALREADY FALLEN IN THE
LAST 1 TO 2 HOURS WITH AN ADDITIONAL INCH POSSIBLE. ALTHOUGH
RAINFALL IS GRADUALLY DIMINISHING...FLASH FLOODING WILL CONTINUE AS
EXCESS WATER RUNS OFF.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
COTTONWOOD...CHIPLEY...GRACEVILLE...DOTHAN...TAYLOR...REHOBETH...
COTTONDALE...ALFORD...MADRID...CAMPBELLTON...MEMPHIS...BROWNTOWN...
RICHTER CROSSROADS...GRANGEBURG...SOUTHERN JUNCTION...HODGESVILLE...
BAHOMA...KYNESVILLE...OLYMPIA SPA RESORT AND JACOBS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3089 8558 3094 8553 3097 8553 3100 8549
      3118 8549 3113 8517 3068 8533 3070 8564

$$

42-DVD
075 
WGUS72 KTAE 220221
FFSTAE

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
921 PM CDT THU JUL 21 2016

ALC069-FLC063-133-220230-
/O.EXP.KTAE.FF.W.0013.000000T0000Z-160722T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HOUSTON AL-WASHINGTON FL-JACKSON FL-
921 PM CDT THU JUL 21 2016

...THE FLASH FLOOD WARNING FOR SOUTH CENTRAL HOUSTON...NORTHEASTERN
WASHINGTON AND NORTHWESTERN JACKSON COUNTIES WILL EXPIRE AT 930 PM
CDT...

THE HEAVY RAIN HAS ENDED. HOWEVER...PLEASE CONTINUE TO HEED ANY
REMAINING ROAD CLOSURES DUE TO RESIDUAL FLOODING.

LAT...LON 3089 8558 3094 8553 3097 8553 3100 8549
      3118 8549 3113 8517 3068 8533 3070 8564

$$

42-DVD

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 20, 7:59 PM CDTSevere Thunderstorm WarningTAEMadison31 min
Jul 21, 9:43 AM CDTSpecial Marine WarningTAE62 min
Jul 21, 1:45 PM CDTSpecial Marine WarningTAE45 min
Jul 21, 2:48 PM CDTSpecial Weather StatementTAETaylor42 min
Jul 21, 2:57 PM CDTSevere Thunderstorm WarningTAEWakulla33 min
Jul 21, 3:15 PM CDTSevere Thunderstorm WarningTAELiberty, Wakulla45 min
Jul 21, 4:07 PM CDTSpecial Weather StatementTAELiberty38 min
Jul 21, 4:19 PM CDTSpecial Weather StatementTAEGadsden41 min
Jul 21, 4:30 PM CDTSpecial Weather StatementTAEHolmes45 min
Jul 21, 4:39 PM CDTSevere Thunderstorm WarningTAEHolmes, Walton17 min
Jul 21, 5:11 PM CDTSpecial Weather StatementTAEWalton49 min
Jul 21, 5:46 PM CDTSpecial Weather StatementTAEJackson44 min
Jul 21, 6:14 PM CDTAreal Flood AdvisoryTAEJackson2 hr
Jul 21, 6:54 PM CDTSpecial Weather StatementTAEDixie36 min
Jul 20, 9:04 PM CDTSpecial Weather StatementTAECoffee41 min
Jul 20, 9:48 PM CDTSpecial Weather StatementTAECoffee42 min
Jul 21, 3:04 PM CDTSpecial Weather StatementTAECoffee41 min
Jul 21, 3:17 PM CDTSevere Thunderstorm WarningTAECoffee27 min
Jul 21, 4:29 PM CDTSpecial Weather StatementTAEHenry46 min
Jul 21, 6:04 PM CDTSpecial Weather StatementTAEHouston26 min
Jul 21, 6:12 PM CDTAreal Flood AdvisoryTAEDale, Henry, Houston2 hr

Nearby

Flash Flood Warnings in Florida, 2016Flash Flood Warnings in Alabama, 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.