Alert archive / Georgia / Flash Flood Warnings in 1999

Flash Flood Warning 3, NWS Atlanta, GA

July 6, 1999Fulton County, Georgia

NWS Atlanta, GA issued this flash flood warning at Jul 6, 1999, 5:35 PM EDT for Fulton County, Georgia. It was in force for 115 min. 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, 5:35 PM EDT (21:35 UTC)
Expired
Jul 6, 1999, 7:30 PM EDT
In force
115 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Fulton County, GA

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 9.6 hours before the alert went out and 47 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 062136
FFWATL
GAC121-062330-

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

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL FULTON COUNTY IN NORTHWESTERN GEORGIA

* UNTIL 730 PM EDT

* AT 520 PM EDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A LARGE THUNDERSTORM WITH VERY HEAVY RAIN OVER FULTON COUNTY...
  ESPECIALLY OVER THE CITY OF ATLANTA... MOVING VERY SLOWLY SOUTH.

* AREAS MOSTLY LIKELY TO BE AFFECTED BY FLOODING ARE NORTH OF I-20
  INSIDE THE PERIMETER. RADAR INDICATES OVER THREE INCHES OF RAIN
  OVER PARTS OF CENTRAL FULTON COUNTY AND THE CITY OF ATLANTA AND
  RAIN WAS CONTINUING TO FALL AT 520 PM. RAINFALL WILL BE TAPERING
  OFF BEFORE 6 PM...BUT FLOODING OF STREETS AND AREAS WITH POOR
  DRAINAGE WILL CONTINUE. CREEKS WILL CONTINUE TO RISE AND MAY
  SPILL OUT OF THEIR BANKS.

DO NOT DRIVE INTO WATER COVERING THE ROADWAY. WATER DEPTHS OF ONLY
TWO FEET WILL CAUSE MOST AUTOMOBILES TO BECOME STRANDED OR FLOAT
AWAY. IF THE WATER IS MOVING...THE ROAD BED MAY BE ERODED.
VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.

PARENTS SH4OULD KEEP CHILDREN AWAY FROM STORM SEWERS AND CREEKS.

YOU CAN REPORT 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 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, 6:55 PM EDTFlash Flood WarningFFCChattooga3 hr
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.