Alert archive / Alabama / Flash Flood Warnings in 2012

Flash Flood Warning 27, NWS Tallahassee, FL

August 7, 2012Coffee County, Alabama

NWS Tallahassee, FL issued this flash flood warning at Aug 7, 2012, 5:00 AM CDT for Coffee County, Alabama. It was in force for 2 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 7, 2012, 5:00 AM CDT (10:00 UTC)
Expired
Aug 7, 2012, 7:00 AM CDT
In force
2 hr
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon
Flood severity
None

County Coffee County, AL

What was reported inside it

TimeReportWhereRemark
Aug 7, 7:07 AM CDTFLASH FLOODEnterprise, ALSIGNIFICANT FLASH FLOODING ALL OVER THE CITY OF ENTERPRISE ALABAMA AND POINTS NORTH AND EAST. RESCUE OPERATIONS ARE UNDERWAY FOR PEOPLE TRAPPED IN HOUSES AND VEHICLES.

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 00:00Z, 10.0 hours before the alert went out and 199 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 00:00Z on 2012-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2432 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 2012-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 42 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
2432 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
603 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
42 m²/s²
0-3 km storm-relative helicity
81 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.

668 
WGUS52 KTAE 071000
FFWTAE
ALC031-071200-
/O.NEW.KTAE.FF.W.0027.120807T1000Z-120807T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
500 AM CDT TUE AUG 7 2012

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  COFFEE COUNTY IN SOUTHEAST ALABAMA...

* UNTIL 700 AM CDT

* AT 453 AM CDT...THE NATIONAL WEATHER SERVICE HAS DETECTED FLASH    
  FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA. THESE SLOW      
  MOVING STORMS HAVE BEEN PRODUCING RAINFALL RATES OF 1 TO 2 INCHES 
  PER HOUR WITH TOTAL ACCUMULATIONS OF UP TO 5 TO 7 INCHES POSSIBLE. 

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO EANON...
  JAVA...FRISCO...CLOWERS CROSSROADS...CHESTNUT GROVE...WOODLAND
  GROVE CHURCH...CAMP HUMMING HILLS...ARCUS...LOWRY MILL...WISE
  MILL...WILKINSTOWN...VICTORIA...TABERNACLE...ROETON...NEW HOPE...
  MIXONS CROSSROADS AND JACK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL 
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

* BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE 
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE 
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS 
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

* 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 3162 8606 3162 8580 3128 8580 3129 8608

$$

17-GOULD

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 7, 2:12 AM CDTAreal Flood AdvisoryTAECoffee3 hr
Aug 7, 2:32 AM CDTFlash Flood WatchTAECoffee, Dale, Geneva, Henry, Houston24 hr
Aug 7, 5:06 AM CDTAreal Flood AdvisoryTAEDale, Geneva, Henry, Houston3 hr
Aug 7, 6:04 AM CDTFlash Flood WarningTAECoffee, Dale116 min
Aug 7, 6:48 AM CDTFlash Flood WarningTAECoffee, Geneva117 min
Aug 7, 8:33 AM CDTFlash Flood WarningTAECoffee, Geneva2 hr
Aug 7, 10:00 AM CDTRiver Flood WarningTAEGeneva34 hr

Nearby

Flash Flood Warnings in Alabama, 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.