Alert archive / Georgia / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 485, NWS Atlanta, GA

September 11, 1997Fulton County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Sep 11, 1997, 3:50 AM EDT for Fulton County, Georgia. It was in force for 40 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: Sep 11, 1997, 3:50 AM EDT (07:50 UTC)
Expired: Sep 11, 1997, 4:30 AM EDT
In force: 40 min
Issued by: NWS Atlanta, GA
Area: Whole counties

County Fulton County, GA

The radar

The Atlanta radar (KFFC), 48 km from the middle of the area, began a volume at 07:51 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, 7.8 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-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: 914 J/kg
Mixed-layer CIN: -54 J/kg
Mixed-layer LCL: 1127 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 5 m²/s²
0-3 km storm-relative helicity: 45 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 110751 RRA
SVRATL
GAC121-110830-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
350 AM EDT THU SEP 11 1997
 
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  430 AM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHWEST GEORGIA
 
   ...SOUTHERN FULTON COUNTY
 
AT 348 AM EDT WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM 5
MILES WEST OF RICO MOVING EAST AT 15 MPH. THIS STORM WILL MOVE OVER THE
FAIRBURN AND UNION CITY AREAS BY 415 AM.
 
DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...AND DEADLY LIGHTNING
ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AWAY FROM
WINDOWS UNTIL THE STORM HAS PASSED. BOATERS, GOLFERS, AND OTHERS
INVOLVED IN OUTSIDE ACTIVITIES SHOULD SEEK SHELTER IMMEDIATELY.
 
IF YOU EXPERIENCE STORM DAMAGE TO STRUCTURES OR TREES...OR HAIL THE
SIZE OF DIMES OR LARGER...PLEASE REPORT IT TO THE NATIONAL WEATHER
SERVICE BY CALLING 770-486-8535.

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 10, 8:01 PM EDT	Severe Thunderstorm Warning	FFC	Floyd	29 min
Sep 10, 8:22 PM EDT	Severe Thunderstorm Warning	FFC	Fannin, Gilmer	38 min
Sep 10, 8:57 PM EDT	Severe Thunderstorm Warning	FFC	Fayette	33 min
Sep 10, 9:08 PM EDT	Severe Thunderstorm Warning	FFC	Gilmer, Murray	37 min
Sep 10, 9:50 PM EDT	Severe Thunderstorm Warning	FFC	Newton, Walton	25 min
Sep 10, 10:17 PM EDT	Severe Thunderstorm Warning	FFC	Walton	28 min
Sep 10, 10:22 PM EDT	Severe Thunderstorm Warning	FFC	Hancock	38 min
Sep 10, 11:17 PM EDT	Severe Thunderstorm Warning	FFC	Warren	28 min

Nearby

Severe Thunderstorm Warnings in Georgia, 1997 Every severe thunderstorm 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.