Alert archive / Georgia / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 505, NWS Atlanta, GA

October 26, 1997Harris County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Oct 26, 1997, 6:50 AM EST for Harris County, Georgia. It was in force for 85 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
Oct 26, 1997, 6:50 AM EST (11:50 UTC)
Expired
Oct 26, 1997, 8:15 AM EST
In force
85 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Harris County, GA

The radar

The Atlanta radar (KFFC), 77 km from the middle of the area, began a volume at 11:54 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.

What was reported inside it

TimeReportWhereRemark
Oct 26, 8:10 AM ESTThunderstorm WindMountain Hill, GATroup county 911 reported several trees were knocked down on power lines in the Pine Lake and Mountain Hill areas.

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 nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 11.8 hours before the alert went out and 80 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 1997-10-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 325 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 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 1997-10-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 295 square meters per square second.1939587897Sfc1 km3 km6 km9 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
325 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
493 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
295 m²/s²
0-3 km storm-relative helicity
522 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KATL 261253 RRA
SVRATL
GAC145-261315-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
750 AM EST SUN OCT 26 1997
 
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  815 AM EST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN WEST CENTRAL GEORGIA
 
   ...HARRIS COUNTY
 
AT 748 AM EST...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM OVER THE SOUTHWEST CORNER OF HARRIS COUNTY. THE STORM WAS
MOVING NORTHEAST AT 40 MPH AND IS CAPABLE OF PRODUCING DAMAGING WINDS.
 
A TORNADO WATCH IS ALSO IN EFFECT IN OR NEAR THE WARNED AREA.
REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE
ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS.
 
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.
 
WRS

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 26, 6:56 AM ESTTornado WarningFFCHarris94 min
Oct 26, 8:21 AM ESTSevere Thunderstorm WarningFFCMeriwether39 min
Oct 26, 8:45 AM ESTSevere Thunderstorm WarningFFCUpson30 min
Oct 26, 8:53 AM ESTTornado WarningFFCUpson22 min
Oct 26, 9:03 AM ESTSevere Thunderstorm WarningFFCLamar, Pike27 min
Oct 26, 9:21 AM ESTTornado WarningFFCLamar24 min
Oct 26, 9:35 AM ESTSevere Thunderstorm WarningFFCPike, Upson25 min
Oct 26, 9:44 AM ESTSevere Thunderstorm WarningFFCMonroe31 min
Oct 26, 9:49 AM ESTSevere Thunderstorm WarningFFCLamar26 min
Oct 26, 10:06 AM ESTSevere Thunderstorm WarningFFCJasper39 min
Oct 26, 10:18 AM ESTSevere Thunderstorm WarningFFCMonroe12 min
Oct 26, 10:26 AM ESTSevere Thunderstorm WarningFFCJones34 min
Oct 26, 10:31 AM ESTSevere Thunderstorm WarningFFCGreene29 min
Oct 26, 10:35 AM ESTSevere Thunderstorm WarningFFCPutnam25 min
Oct 26, 10:55 AM ESTSevere Thunderstorm WarningFFCHancock35 min
Oct 26, 11:05 AM ESTSevere Thunderstorm WarningFFCMacon25 min
Oct 26, 11:33 AM ESTSevere Thunderstorm WarningFFCHancock, Warren42 min
Oct 26, 11:42 AM ESTSevere Thunderstorm WarningFFCHouston33 min
Oct 26, 12:09 PM ESTTornado WarningFFCDooly, Sumter36 min
Oct 26, 12:41 PM ESTSevere Thunderstorm WarningFFCHouston34 min
Oct 26, 12:53 PM ESTTornado WarningFFCHouston22 min
Oct 26, 1:10 PM ESTSevere Thunderstorm WarningFFCLaurens, Wilkinson35 min
Oct 26, 1:12 PM ESTTornado WarningFFCBleckley, Pulaski33 min
Oct 26, 1:42 PM ESTSevere Thunderstorm WarningFFCLaurens33 min
Oct 26, 1:50 PM ESTTornado WarningFFCLaurens10 min
Oct 26, 2:18 PM ESTSevere Thunderstorm WarningFFCJohnson, Laurens42 min
Oct 26, 2:25 PM ESTSevere Thunderstorm WarningFFCEmanuel, Jefferson50 min

Nearby

Severe Thunderstorm Warnings in Georgia, 1997Every 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; radar from the NEXRAD Level II archive.