Alert archive / Georgia / Flash Flood Warnings in 2005

Flash Flood Warning 40, NWS Atlanta, GA

August 8, 2005Oglethorpe County, Georgia

NWS Atlanta, GA issued this flash flood warning at Aug 8, 2005, 5:38 PM EDT for Oglethorpe County, Georgia. 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
Aug 8, 2005, 5:38 PM EDT (21:38 UTC)
Expired
Aug 8, 2005, 7:45 PM EDT
In force
2 hr
Issued by
NWS Atlanta, GA
Area
Counties, with a storm outline in the text

County Oglethorpe County, GA

The radar

The Robins AFB radar (KJGX), 132 km from the middle of the area, began a volume at 21:41 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.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 9.6 hours before the alert went out and 151 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, Peachtre/Fal Fld, GA at 12:00Z on 2005-08-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 663 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, Peachtre/Fal Fld, GA at 12:00Z on 2005-08-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 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
663 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
490 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
55 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.

000 
WGUS52 KFFC 082141
FFWFFC
GAC221-092345-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
538 PM EDT MON AUG 8 2005

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN OGLETHORPE COUNTY IN NORTHEAST GEORGIA

* UNTIL 745 PM EDT

* AT 531 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  THAT SEVERAL INCHES OF RAIN HAD FALLEN ACROSS MUCH OF EASTERN
  OGLETHORPE COUNTY...PARTICULARLY BETWEEN VESTA AND SANDY CROSS.
  THUNDERSTORMS CONTINUE IN THE AREA AND ADDITIONAL HEAVY RAIN WAS
  DEVELOPING FURTHER SOUTH TOWARD PHILOMATH. THE GROUND IN THIS AREA
  IS SATURATED AND ADDITIONAL RAINFALL WILL RESULT IN FLOODING

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  PHILOMATH.



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.  SOME CREEKS AND STREAMS THAT WILL BE 
AFFECTED IN THE AREA INCLUDE MACKS CREEK AND GOOSEPOND CREEK.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

LAT...LON 3369 8297 3384 8296 3396 8280 3403 8304
      3371 8305

IF YOU SEE SIGNIFICANT FLOODING CALL THE NATIONAL WEATHER SERVICE
TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.

$$

RAB
1 follow-up statement
000 
WGUS72 KFFC 082314
FFSFFC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
713 PM EDT MON AUG 8 2005

GAC221-082345-
OGLETHORPE-
713 PM EDT MON AUG 8 2005

...A FLASH FLOOD WARNING CONTINUES UNTIL 745 PM EDT FOR EASTERN
OGLETHORPE COUNTY...

AT 711 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THAT RAIN HAD DIMINISHED ACROSS EASTERN OGLETHORPE COUNTY. 
HOWEVER...2-3 INCHES OF RAIN FELL ACROSS THIS PORTION OF THE COUNTY 
EARLIER. CREEKS AND STREAMS IN THE EASTERN PORTION OF THE 
COUNTY...PARTICULARLY ALONG THE WILKES COUNTY LINE...ARE NEAR OR 
ABOVE BANKFULL. THIS WILL CONTINUE FOR SEVERAL HOURS UNTIL THE WATER 
HAS HAD A CHANCE TO RECEDE.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO VESTA.

LAT...LON 3369 8297 3384 8296 3396 8280 3403 8304
      3371 8305

$$

RAB

The office that day

Everything else NWS Atlanta, GA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 8, 3:26 PM EDTFlash Flood WarningFFCBanks2 hr
Aug 8, 4:30 PM EDTFlash Flood WarningFFCMadison2 hr

Nearby

Flash Flood Warnings in Georgia, 2005Every flash flood warning in 2005

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; radar from the NEXRAD Level II archive.