Alert archive / Georgia / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 445, NWS Atlanta, GA

August 18, 1997Montgomery County, Toombs County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Aug 18, 1997, 5:54 PM EDT for Montgomery County, Toombs County, Georgia. It was in force for 51 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Aug 18, 1997, 5:54 PM EDT (21:54 UTC)
Expired: Aug 18, 1997, 6:45 PM EDT
In force: 51 min
Issued by: NWS Atlanta, GA
Area: Whole counties

Counties Montgomery County, GA, Toombs County, GA

What was reported inside it

Time	Report	Where	Remark
Aug 18, 6:10 PM EDT	Thunderstorm Wind	Higgston, GA	Altamaha EMC reported thunderstorm winds knocked several trees down on power lines.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Aug 18, 1:45 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 9.9 hours before the alert went out and 196 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: 1248 J/kg
Mixed-layer CIN: -49 J/kg
Mixed-layer LCL: 944 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 26 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 182151 RRA
SVRATL
GAC209-279-182245-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
554 PM EDT MON AUG 18 1997
 
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  645 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN CENTRAL GEORGIA
 
   ...MONTGOMERY COUNTY
 
IN SOUTHEAST GEORGIA
 
   ...TOOMBS COUNTY
 
AT 553 PM EDT WEATHER RADAR INDICATED A SEVERE THUNDERSTORM OVER
MOUNT VERNON MOVING TO THE SOUTHEAST AT 25 MPH.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
 
IF YOU EXPERIENCE STORM DAMAGE TO STRUCTURES OR TREES...OR HAIL THE
SIZE OF DIMES OR LARGER...PLEASE REPO8RT 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
Aug 18, 1:03 PM EDT	Severe Thunderstorm Warning	FFC	Carroll, Haralson	42 min
Aug 18, 4:55 PM EDT	Severe Thunderstorm Warning	FFC	Emanuel, Treutlen	50 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.