Alert archive / Georgia / Flash Flood Warnings in 1999

Flash Flood Warning 4, NWS Atlanta, GA

July 6, 1999Chattooga County, Georgia

NWS Atlanta, GA issued this flash flood warning at Jul 6, 1999, 6:55 PM EDT for Chattooga County, Georgia. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 6, 1999, 6:55 PM EDT (22:55 UTC)
Expired
Jul 6, 1999, 9:55 PM EDT
In force
3 hr
Issued by
NWS Atlanta, GA
Area
Whole counties

County Chattooga County, GA

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 10.9 hours before the alert went out and 146 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 1999-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1066 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, Peachtre/Fal Fld, GA at 12:00Z on 1999-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -20 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
1066 J/kg
Mixed-layer CIN
-60 J/kg
Mixed-layer LCL
1170 m above ground
0-6 km bulk shear
4 kt
0-1 km storm-relative helicity
-20 m²/s²
0-3 km storm-relative helicity
66 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 
TTAA00 KATL 062257
FFWATL
GAC055-070155-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
655 PM EDT TUE JUL 6 1999

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CHATTOOGA COUNTY IN NORTHWESTERN GEORGIA

* UNTIL 955 PM EDT

* AT 650 PM EDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A VERY LARGE THUNDERSTORM WITH VERY HEAVY RAIN ACROSS MUCH OF THE
  COUNTY MOVING SOUTH AT 10 MPH. FLOODING IS POSSIBLE ANYWHERE IN
  THE COUNTY BUT IS MOST LIKELY IN THE WESTERN PART...FROM
  SUMMERVILLE TO THE ALABAMA BORDER. RADAR ESTIMATES OVER 2 INCHES
  OF RAIN HAVE FALLEN IN PARTS OF THE COUNTY SINCE 545 PM AND
  ANOTHER INCH OR TWO IS POSSIBLE.

*

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT. STAY OUT OF
FLOWING WATER. DO NOT ALLOW CHILDREN TO PLAY NEAR CREEKS...
DRAINAGE DITCHES OR URBAN SEWER SYSTEMS. YOU CAN REPORT SERIOUS
FLOODING TO THE NATIONAL WEATHER SERVICE BY CALLING 770-486-1133
AT EXTENSION 2 0 4.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 3:14 PM EDTSevere Thunderstorm WarningFFCPickens36 min
Jul 6, 3:42 PM EDTSevere Thunderstorm WarningFFCLumpkin33 min
Jul 6, 3:52 PM EDTSevere Thunderstorm WarningFFCGilmer33 min
Jul 6, 3:58 PM EDTSevere Thunderstorm WarningFFCJackson37 min
Jul 6, 4:15 PM EDTSevere Thunderstorm WarningFFCFulton35 min
Jul 6, 4:27 PM EDTSevere Thunderstorm WarningFFCHall33 min
Jul 6, 4:45 PM EDTSevere Thunderstorm WarningFFCCobb, Fulton35 min
Jul 6, 4:46 PM EDTSevere Thunderstorm WarningFFCEmanuel, Johnson34 min
Jul 6, 4:52 PM EDTSevere Thunderstorm WarningFFCWarren33 min
Jul 6, 5:14 PM EDTSevere Thunderstorm WarningFFCDeKalb36 min
Jul 6, 5:35 PM EDTFlash Flood WarningFFCFulton115 min
Jul 6, 5:35 PM EDTSevere Thunderstorm WarningFFCEmanuel, Johnson35 min
Jul 6, 5:45 PM EDTSevere Thunderstorm WarningFFCLaurens35 min
Jul 6, 5:49 PM EDTSevere Thunderstorm WarningFFCGreene, Taliaferro31 min
Jul 6, 5:51 PM EDTSevere Thunderstorm WarningFFCHenry34 min
Jul 6, 6:01 PM EDTSevere Thunderstorm WarningFFCChattooga34 min
Jul 6, 6:03 PM EDTSevere Thunderstorm WarningFFCMonroe32 min
Jul 6, 6:19 PM EDTSevere Thunderstorm WarningFFCBaldwin, Hancock36 min
Jul 6, 6:24 PM EDTSevere Thunderstorm WarningFFCFayette36 min
Jul 6, 6:32 PM EDTSevere Thunderstorm WarningFFCJones33 min
Jul 6, 6:41 PM EDTSevere Thunderstorm WarningFFCMonroe34 min
Jul 6, 6:44 PM EDTSevere Thunderstorm WarningFFCTroup31 min
Jul 6, 6:45 PM EDTSevere Thunderstorm WarningFFCChattooga35 min
Jul 6, 6:52 PM EDTSevere Thunderstorm WarningFFCBaldwin33 min
Jul 6, 6:56 PM EDTSevere Thunderstorm WarningFFCBibb34 min
Jul 6, 7:00 PM EDTSevere Thunderstorm WarningFFCLaurens35 min
Jul 6, 7:08 PM EDTSevere Thunderstorm WarningFFCMeriwether32 min
Jul 6, 7:09 PM EDTSevere Thunderstorm WarningFFCMonroe36 min
Jul 6, 7:20 PM EDTSevere Thunderstorm WarningFFCMacon35 min
Jul 6, 7:24 PM EDTSevere Thunderstorm WarningFFCTelfair36 min
Jul 6, 7:39 PM EDTSevere Thunderstorm WarningFFCHeard31 min
Jul 6, 7:46 PM EDTSevere Thunderstorm WarningFFCDooly34 min
Jul 6, 7:47 PM EDTSevere Thunderstorm WarningFFCUpson33 min

Nearby

Flash Flood Warnings in Georgia, 1999Every flash flood warning in 1999

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.