Alert archive / Georgia / Flash Flood Warnings in 1997

Flash Flood Warning 2, NWS Atlanta, GA

March 29, 19974 counties in Georgia

NWS Atlanta, GA issued this flash flood warning at Mar 29, 1997, 3:45 AM EST for 4 counties in 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: Mar 29, 1997, 3:45 AM EST (08:45 UTC)
Expired: Mar 29, 1997, 6:45 AM EST
In force: 3 hr
Issued by: NWS Atlanta, GA
Area: Whole counties

Counties Dawson County, GA, Fannin County, GA, Gilmer County, GA, Lumpkin County, GA

The radar

The Atlanta radar (KFFC), 145 km from the middle of the area, began a volume at 08:49 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, 8.8 hours before the alert went out and 144 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1292 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 660 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 207 m²/s²
0-3 km storm-relative helicity: 209 m²/s²
Significant tornado parameter: 1.6
Supercell composite: 6.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KATL 290846
FFWATL
GAC187-281-291-311-085-111-123-291145-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
345 AM EST SAT MAR 29 1997
 
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 645 AM EST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHEAST GEORGIA
 
   ...LUMPKIN COUNTY...TOWNS COUNTY...UNION COUNTY...WHITE COUNTY
 
IN NORTHWEST GEORGIA
 
   ...DAWSON COUNTY...FANNIN COUNTY...GILMER COUNTY
 
AT 327 AM EST...911 REPORTED FLASH FLOODING AND MUD SLIDES AT POPE IN
FANNIN COUNTY. SEVERE THUNDERSTORMS AND HEAVY DOWNPOURS OCCURRING OVER
MUCH OF THE NORTHEAST GEORGIA MOUNTAINS WILL CONTINUE TO CAUSE FLASH
FLOODING FOR THE NEXT FEW HOURS.
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT.  MOST FLASH FLOOD DEATHS 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.  TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.
 
WRS
 
&

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 28, 11:20 PM EST	Severe Thunderstorm Warning	FFC	Murray	10 min
Mar 28, 11:41 PM EST	Severe Thunderstorm Warning	FFC	Gilmer	34 min
Mar 29, 12:11 AM EST	Severe Thunderstorm Warning	FFC	Bartow, Floyd	34 min
Mar 29, 12:22 AM EST	Tornado Warning	FFC	Bartow	38 min
Mar 29, 12:46 AM EST	Severe Thunderstorm Warning	FFC	Cherokee	29 min
Mar 29, 12:59 AM EST	Severe Thunderstorm Warning	FFC	Lumpkin	21 min
Mar 29, 1:56 AM EST	Severe Thunderstorm Warning	FFC	Murray, Whitfield	34 min
Mar 29, 2:20 AM EST	Severe Thunderstorm Warning	FFC	Fannin, Union	25 min
Mar 29, 2:29 AM EST	Severe Thunderstorm Warning	FFC	Chattooga	31 min
Mar 29, 2:45 AM EST	Severe Thunderstorm Warning	FFC	Bartow	30 min
Mar 29, 2:50 AM EST	Severe Thunderstorm Warning	FFC	Towns, Union	25 min
Mar 29, 2:59 AM EST	Severe Thunderstorm Warning	FFC	Floyd	31 min
Mar 29, 3:17 AM EST	Severe Thunderstorm Warning	FFC	Gilmer	28 min
Mar 29, 3:45 AM EST	Flash Flood Warning	FFC	Towns, Union, White	3 hr
Mar 29, 6:04 PM EST	Severe Thunderstorm Warning	FFC	Macon, Taylor	26 min

Nearby

Flash Flood Warnings in Georgia, 1997 Every 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.