Alert archive / Georgia / Flash Flood Warnings in 1998

Flash Flood Warning 7, NWS Atlanta, GA

April 17, 1998Lumpkin County, White County, Georgia

NWS Atlanta, GA issued this flash flood warning at Apr 17, 1998, 3:22 AM EDT for Lumpkin County, White County, Georgia. It was in force for 4 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
Apr 17, 1998, 3:22 AM EDT (07:22 UTC)
Expired
Apr 17, 1998, 7:20 AM EDT
In force
4 hr
Issued by
NWS Atlanta, GA
Area
Whole counties

Counties Lumpkin County, GA, White County, GA

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 7.4 hours before the alert went out and 149 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 00:00Z on 1998-04-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1217 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 00:00Z on 1998-04-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 280 square meters per square second.1939587897117Sfc1 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
1217 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
573 m above ground
0-6 km bulk shear
69 kt
0-1 km storm-relative helicity
280 m²/s²
0-3 km storm-relative helicity
368 m²/s²
Significant tornado parameter
3.0
Supercell composite
10.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KATL 170723
FFWATL
GAC085-187-311-171120-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
322 AM EDT FRI APR 17 1998

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  DAWSON COUNTY IN NORTHWESTERN GEORGIA
  LUMPKIN COUNTY IN NORTHEASTERN GEORGIA
  WHITE COUNTY IN NORTHEASTERN GEORGIA

* UNTIL 720 AM EDT

* AT 315 AM EDT... DOPPLER RADAR INDICATED THUNDERSTORMS WITH VERY
  HEAVY RAIN OVER DAWSON...LUMPKIN AND WHITE COUNTIES...MOVING EAST
  AT 55 MPH. OTHER THUNDERSTORMS WITH VERY HEAVY RAIN WILL MOVE OVER
  DAWSON...LUMPKIN AND WHITE COUNTIES PRODUCING FLASH FLOODING.

* DOPPLER RADAR ESTIMATED BETWEEN 2 AND 3 INCHES OF RAIN HAVE FALLEN
  OVER DAWSON...LUMPKIN AND WHITE COUNTIES. ROADS IN WHITE COUNTY
  WERE REPORTED UNDERWATER AS WELL AS SOME HOMES AND BUSINESSES
  BEING FLOODED.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLOODS AND FLASH FLOODS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING. IF FLASH FLOODING IS
OBSERVED...MOVE TO HIGHER GROUND QUICKLY. IF RAPIDLY RISING WATER
THREATENS HOMES OR BUSINESSES IN YOUR AREA....OR IF YOU SEE ROADS
OR BRIDGES BEING COVERED WITH WATER FROM RISING CREEKS OR
STREAMS...PLEASE CALL THE NATIONAL WEATHER SERVICE AT 770-486-8535.

BL/KM

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 16, 10:47 PM EDTSevere Thunderstorm WarningFFCDade33 min
Apr 16, 11:03 PM EDTSevere Thunderstorm WarningFFCCatoosa, Walker32 min
Apr 16, 11:20 PM EDTTornado WarningFFCCatoosa, Walker35 min
Apr 16, 11:33 PM EDTTornado WarningFFCChattooga, Floyd32 min
Apr 16, 11:57 PM EDTTornado WarningFFCFloyd18 min
Apr 17, 12:13 AM EDTTornado WarningFFCBartow47 min
Apr 17, 12:41 AM EDTTornado WarningFFCCherokee, Pickens49 min
Apr 17, 12:53 AM EDTSevere Thunderstorm WarningFFCFannin, Union32 min
Apr 17, 1:04 AM EDTTornado WarningFFCDawson, Lumpkin51 min
Apr 17, 1:24 AM EDTSevere Thunderstorm WarningFFCGordon, Pickens46 min
Apr 17, 1:32 AM EDTSevere Thunderstorm WarningFFCHall33 min
Apr 17, 1:54 AM EDTSevere Thunderstorm WarningFFCDawson, Lumpkin31 min
Apr 17, 2:07 AM EDTSevere Thunderstorm WarningFFCHall, White48 min
Apr 17, 3:02 AM EDTTornado WarningFFCCherokee, Pickens33 min
Apr 17, 3:22 AM EDTFlash Flood WarningFFCDawson4 hr
Apr 17, 5:16 AM EDTSevere Thunderstorm WarningFFCCherokee, Forsyth34 min
Apr 17, 7:25 AM EDTSevere Thunderstorm WarningFFCMarion, Schley35 min
Apr 17, 7:49 AM EDTSevere Thunderstorm WarningFFCMacon36 min
Apr 17, 7:59 AM EDTSevere Thunderstorm WarningFFCSchley21 min
Apr 17, 8:20 AM EDTSevere Thunderstorm WarningFFCHouston, Peach35 min
Apr 17, 8:34 AM EDTSevere Thunderstorm WarningFFCBleckley, Twiggs36 min
Apr 17, 8:47 AM EDTSevere Thunderstorm WarningFFCWilkinson33 min
Apr 17, 4:23 PM EDTSevere Thunderstorm WarningFFCMarion32 min
Apr 17, 5:16 PM EDTSevere Thunderstorm WarningFFCBibb, Jones34 min
Apr 17, 5:22 PM EDTSevere Thunderstorm WarningFFCMacon, Marion, Schley48 min
Apr 17, 6:11 PM EDTSevere Thunderstorm WarningFFCHouston, Macon34 min
Apr 17, 6:17 PM EDTSevere Thunderstorm WarningFFCBibb, Crawford33 min
Apr 17, 6:24 PM EDTSevere Thunderstorm WarningFFCSchley36 min
Apr 17, 6:55 PM EDTSevere Thunderstorm WarningFFCBibb, Twiggs45 min
Apr 17, 7:05 PM EDTSevere Thunderstorm WarningFFCWilkinson35 min
Apr 17, 7:36 PM EDTSevere Thunderstorm WarningFFCWashington49 min
Apr 17, 7:42 PM EDTSevere Thunderstorm WarningFFCWilkinson18 min

Nearby

Flash Flood Warnings in Georgia, 1998Every flash flood warning in 1998

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.