Alert archive / Georgia / Flash Flood Warnings in 1997

Flash Flood Warning 11, NWS Atlanta, GA

June 28, 1997Haralson County, Polk County, Georgia

NWS Atlanta, GA issued this flash flood warning at Jun 28, 1997, 9:41 PM EDT for Haralson County, Polk 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 counties it named.

The facts

Issued
Jun 28, 1997, 9:41 PM EDT (01:41 UTC)
Expired
Jun 28, 1997, 11:45 PM EDT
In force
2 hr
Issued by
NWS Atlanta, GA
Area
Whole counties

Counties Haralson County, GA, Polk County, GA

The radar

The Atlanta radar (KFFC), 84 km from the middle of the area, began a volume at 01:44 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 00:00Z, 1.7 hours before the alert went out and 87 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 1997-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 890 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 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 1997-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -32 square meters per square second.1939Sfc1 km3 km6 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
890 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
985 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
-32 m²/s²
0-3 km storm-relative helicity
27 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 290140
FFWATL
GAC143-233-285-290345-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
941 PM EDT SAT JUN 28 1997
 
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 1145 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHWEST GEORGIA
 
   ...HARALSON COUNTY...POLK COUNTY
 
IN WEST CENTRAL GEORGIA
 
   ...TROUP COUNTY
 
AT 9:35 PM DOPPLER WEATHER RADAR INDICATED THUNDERSTORMS PRODUCING HEAVY
RAINFALL OVER POLK..HARALSON AND EASTERN TROUP COUNTIES. THESE
THUNDERSTORMS ARE MOVING VERY SLOWLY SOUTH AND PRODUCING 2 TO 3 INCHES
OF RAIN PER HOUR.
 
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.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 28, 8:29 PM EDTFlash Flood WarningFFCFloyd76 min
Jun 28, 9:41 PM EDTFlash Flood WarningFFCTroup2 hr

Nearby

Flash Flood Warnings in Georgia, 1997Every flash flood warning in 1997

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.