Alert archive / Florida / Flash Flood Warnings in 2012

Flash Flood Warning 18, NWS Tallahassee, FL

June 25, 2012Jefferson County, Madison County, Florida; Brooks County, Lowndes County, Georgia

NWS Tallahassee, FL issued this flash flood warning at Jun 25, 2012, 7:49 PM EDT for Jefferson County, Madison County, Florida; Brooks County, Lowndes County, Georgia. It was in force for 5 hr. 3 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
Jun 25, 2012, 7:49 PM EDT (23:49 UTC)
Expired
Jun 26, 2012, 1:00 AM EDT
In force
5 hr
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon
Flood severity
None

Counties Jefferson County, FL, Madison County, FL, Brooks County, GA, Lowndes County, GA

What was reported inside it

TimeReportWhereRemark
Jun 25, 7:55 PM EDTHEAVY RAIN 6.24Lake Park, GA4 INCHES OF RAIN SINCE 7 AM. 6.24 INCHES STORM TOTAL.
Jun 25, 7:55 PM EDTHEAVY RAIN 11.5Monticello, FLSTORM TOTAL.
Jun 25, 8:30 PM EDTFLASH FLOODLake Park, GAUP TO ONE FOOT OF WATER IN THE PARKING LOT OF SONNYS IN LAKE PARK GEORGIA.

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, 11.8 hours before the alert went out and 93 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 2012-06-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 81 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 2012-06-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 4 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
81 J/kg
Mixed-layer CIN
-65 J/kg
Mixed-layer LCL
600 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
4 m²/s²
0-3 km storm-relative helicity
47 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.

477 
WGUS52 KTAE 252349
FFWTAE
FLC065-079-GAC027-185-260545-
/O.NEW.KTAE.FF.W.0018.120625T2349Z-120626T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
749 PM EDT MON JUN 25 2012

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN JEFFERSON COUNTY IN FLORIDA...
  NORTHERN MADISON COUNTY IN FLORIDA...
  SOUTHERN BROOKS COUNTY IN SOUTH CENTRAL GEORGIA...
  SOUTHERN LOWNDES COUNTY IN SOUTH CENTRAL GEORGIA...

* UNTIL 145 AM EDT

* AT 746 PM EDT...THE NATIONAL WEATHER SERVICE HAS DETECTED FLASH
  FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO I-75 AT
  EXIT 16...VALDOSTA AND QUITMAN

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ADDITIONAL RAINFALL AMOUNTS OF SEVERAL INCHES ARE POSSIBLE IN THE 
WARNED AREA.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DON'T DROWN.

REPORT FLOODING OR FLOOD DAMAGE TO THE NATIONAL WEATHER SERVICE IN 
TALLAHASSEE AT (8 5 0) 9 4 2 8 8 3 3. OR...YOU MAY CONTACT THE 
NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY EMERGENCY MANAGEMENT. 
THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE.

&&

LAT...LON 3081 8310 3079 8313 3062 8314 3062 8326
      3051 8323 3048 8324 3049 8403 3067 8377
      3066 8375 3069 8373 3087 8347 3085 8308

$$

42-DVD
1 follow-up statement
707 
WGUS72 KTAE 260500
FFSTAE

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
100 AM EDT TUE JUN 26 2012

FLC065-079-GAC027-185-260510-
/O.CAN.KTAE.FF.W.0018.000000T0000Z-120626T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LOWNDES GA-BROOKS GA-MADISON FL-JEFFERSON FL-
100 AM EDT TUE JUN 26 2012

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR NORTHERN
JEFFERSON...NORTHERN MADISON...SOUTHERN BROOKS AND SOUTHERN LOWNDES
COUNTIES...

RAINFALL HAS DECREASED ACROSS THIS AREA WITH NO RECENT REPORTS OF 
FLOODING...SO THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR THIS 
AREA. 

LAT...LON 3081 8310 3079 8313 3062 8314 3062 8326
      3051 8323 3048 8324 3049 8403 3067 8377
      3066 8375 3069 8373 3087 8347 3085 8308

$$

42-DVD

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 25, 4:21 AM EDTTornado WarningTAETaylor24 min
Jun 25, 11:31 AM EDTRiver Flood WarningTAEWakulla9 days
Jun 25, 11:37 AM EDTFlash Flood WarningTAELiberty, Wakulla6 hr
Jun 25, 1:45 PM EDTFlash Flood WarningTAELeon3 hr
Jun 25, 4:42 PM EDTFlash Flood WarningTAELeon3 hr
Jun 25, 4:56 PM EDTFlash Flood WarningTAEJefferson, Madison3 hr
Jun 25, 5:22 PM EDTFlash Flood Warning EmergencyTAEFranklin, Liberty, Wakulla12 hr
Jun 25, 6:18 PM EDTRiver Flood WarningTAEWakulla4 days
Jun 25, 7:37 PM EDTFlash Flood WarningTAELeon6 hr
Jun 25, 7:55 PM EDTFlash Flood WarningTAEJefferson, Madison, Taylor6 hr

Nearby

Flash Flood Warnings in Florida, 2012Flash Flood Warnings in Georgia, 2012Every flash flood warning in 2012

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.