Alert archive / Georgia / Flash Flood Warnings in 1989
Flash Flood Warning 4, NWS Atlanta, GA
NWS Atlanta, GA issued this flash flood warning at Jun 20, 1989, 1:19 PM EDT for Fulton County, Gwinnett County, Georgia. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Jun 20, 1989, 1:19 PM EDT (17:19 UTC)
- Expired
- Jun 20, 1989, 4:45 PM EDT
- In force
- 3 hr
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
Counties Fulton County, GA, Gwinnett County, GA
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Athens Municipal, GA (KAHN), launched 12:00Z, 5.3 hours before the alert went out and 88 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.
- Mixed-layer CAPE
- 328 J/kg
- Mixed-layer CIN
- -34 J/kg
- Mixed-layer LCL
- 695 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 103 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KATL 201721
FFWATL
GAC121-135-151-247-202045-
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ATLANTA GA
119 PM EDT TUE JUN 20 1989
THE NATIONAL WEATHER SERVICE IN ATLANTA HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 445 PM EDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN NORTHWEST GEORGIA
...FULTON...GWINNETT...HENRY...ROCKDALE
WEATHER RADAR CONTINUES TO SHOW SHOWERS AND THUNDERSTORMS DEVELOPING
AND MOVING ACROSS THE SAME METRO ATLANTA COUNTIES. CREEKS AND STREAMS
WILL BE RISING RAPIDLY ACROSS MUCH OF METRO ATLANTA AND MANY WILL BE
OVERFLOWING THEIR BANKS THIS AFTERNOON.
RAINFALL AMOUNTS OF 2.5 INCHES HAVE BEEN REPORTED IN JONESBORO IN
CLAYTON COUNTY SINCE 7 AM TUESDAY AND OVER 2 INCHES HAS FALLEN AT
ATLANTAS HARTSFIELD AIRPORT.
PEACHTREE CREEK IS INCLUDED IN THIS WARNING. PEACHTREE CREEK IS
EXPECTED TO CREST AT 17 TO 18 FEET LATE THIS AFTERNOON WITH THE RAIN
THAT HAS FALLEN ALREADY. ADDITIONAL HEAVY RAINS WOULD RESULT IN
A HIGHER CREST. THIS WILL CAUSE FLOODING OF WOODWARD WAY AND
PARTS OF THE BOBBY JONES GOLF COURSE IN NORTH ATLANTA.
MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES. DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS
THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A
SMALL ONE...ON FOOT.The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 20, 12:41 PM EDT | Flash Flood Warning | FFC | Clayton, Fayette | 4 hr |
| Jun 20, 12:41 PM EDT | Flash Flood Warning | FFC | DeKalb | 4 hr |
| Jun 20, 1:19 PM EDT | Flash Flood Warning | FFC | Henry, Rockdale | 3 hr |
| Jun 20, 2:08 PM EDT | Flash Flood Warning | FFC | Stephens | 3 hr |
| Jun 20, 2:08 PM EDT | Flash Flood Warning | FFC | Banks, Barrow, Jackson | 2 hr |
| Jun 20, 2:08 PM EDT | Flash Flood Warning | FFC | Habersham | 2 hr |
| Jun 20, 2:08 PM EDT | Flash Flood Warning | FFC | Walton | 3 hr |
| Jun 20, 2:08 PM EDT | Flash Flood Warning | FFC | Hall | 3 hr |
| Jun 20, 3:38 PM EDT | Flash Flood Warning | FFC | Clarke, Madison, Oglethorpe | 47 min |
| Jun 20, 3:38 PM EDT | Flash Flood Warning | FFC | Oconee | 47 min |
Nearby
Flash Flood Warnings in Georgia, 1989Every flash flood warning in 1989
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.