Alert archive / Florida / Flash Flood Warnings in 2012

Flash Flood Warning 25, NWS Tallahassee, FL

June 26, 2012Lafayette County, Florida

NWS Tallahassee, FL issued this flash flood warning at Jun 26, 2012, 5:55 PM EDT for Lafayette County, Florida. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 26, 2012, 5:55 PM EDT (21:55 UTC)
Expired
Jun 26, 2012, 8:00 PM EDT
In force
2 hr
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon
Flood severity
None

County Lafayette County, FL

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 9.9 hours before the alert went out and 127 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 2012-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tallahassee Rgnl, FL at 12:00Z on 2012-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 164 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
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
642 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
164 m²/s²
0-3 km storm-relative helicity
163 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.

251 
WGUS52 KTAE 262155
FFWTAE
FLC067-270000-
/O.NEW.KTAE.FF.W.0025.120626T2155Z-120627T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
555 PM EDT TUE JUN 26 2012

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

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

* UNTIL 800 PM EDT

* AT 548 PM EDT...THE NATIONAL WEATHER SERVICE CONTINUED TO INDICATE 
HEAVY RAIN AND FLASH FLOODING ACROSS CENTRAL AND SOUTHERN PORTIONS 
OF THE COUNTY. 

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
MAYO...COOKS HAMMOCK...AND FLETCHER SPRINGS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

* 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 2982 8290 2983 8335 2989 8335 2989 8337
      2999 8337 3011 8322 3011 8312 2999 8296
      2997 8296 2995 8292 2991 8291 2989 8287

$$

15-HARRIGAN

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 25, 11:35 PM EDTRiver Flood WarningTAEJefferson, Madison, Taylor8 days
Jun 25, 11:41 PM EDTFlash Flood WarningTAEFranklin, Gulf, Liberty6 hr
Jun 26, 1:18 AM EDTFlash Flood WarningTAELafayette, Taylor6 hr
Jun 26, 4:00 AM EDTAreal Flood WarningTAEJefferson, Leon, Madison, Taylor, Wakulla6 hr
Jun 26, 4:04 AM EDTHigh Surf AdvisoryTAEBay, Walton13 hr
Jun 26, 12:44 PM EDTRiver Flood WarningTAEDixie, Levy7 days
Jun 26, 12:48 PM EDTRiver Flood WarningTAEDixie, Levy7 days
Jun 26, 12:55 PM EDTAreal Flood WarningTAEFranklin, Jefferson, Liberty, Wakulla24 hr
Jun 26, 2:13 PM EDTAreal Flood WarningTAELafayette, Taylor3 hr
Jun 26, 3:01 PM EDTFlash Flood WarningTAELafayette119 min
Jun 26, 4:08 PM EDTFlash Flood WarningTAETaylor112 min
Jun 26, 4:50 PM EDTAreal Flood WarningTAELafayette, Taylor3 hr
Jun 26, 4:57 PM EDTFlash Flood WarningTAELafayette63 min
Jun 26, 5:07 PM EDTRip Current StatementTAEBay, Franklin, Gulf, Walton11 hr
Jun 26, 5:29 PM EDTSmall Craft AdvisoryTAE11 hr
Jun 26, 7:49 PM EDTAreal Flood WarningTAEDixie, Lafayette, Taylor24 hr

Nearby

Flash Flood Warnings in Florida, 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; the sounding from the Mesonet's radiosonde archive.