Alert archive / Georgia / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 47, NWS Atlanta, GA

May 1, 2002Chattooga County, Floyd County, Gordon County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at May 1, 2002, 3:58 AM EDT for Chattooga County, Floyd County, Gordon County, Georgia. It was in force for 47 min. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
May 1, 2002, 3:58 AM EDT (07:58 UTC)
Expired
May 1, 2002, 4:45 AM EDT
In force
47 min
Issued by
NWS Atlanta, GA
Area
Counties, with a storm outline in the text

Counties Chattooga County, GA, Floyd County, GA, Gordon County, GA

The radar

The Northeast Alabama radar (KHTX), 100 km from the middle of the area, began a volume at 08:01 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
May 1, 4:00 AM EDTThunderstorm WindTrion, GAThe Summerville News reported that several trees and some power lines were down by thunderstorm winds in the Trion and Subligna-Dry Creek communities. Two mobile homes were severely damaged by large trees which fell on them.
May 1, 4:05 AM EDTThunderstorm WindArmuchee, GAThe Floyd county 911 center reported that trees were down at the intersection of Georgia Highway 156 and Haywood Valley Road. The Rome News Tribune reported that extensive damage occurred to Camp Sydney Dew, a Boy Scout Retreat Camp. Debris from trees and ot
May 1, 4:15 AM EDTTornado F1Calhoun, GAA National Weather Disaster Survey team observed that a weak F0 to F1 tornado made two touchdowns, one just southwest and another just east of downtown Calhoun. These tornado spinups occurred on the south side of a southeastward moving thunderstorm macroburst

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, 8.0 hours before the alert went out and 135 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 2002-05-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 56 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°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 2002-05-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 167 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
56 J/kg
Mixed-layer CIN
-198 J/kg
Mixed-layer LCL
1235 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
167 m²/s²
0-3 km storm-relative helicity
249 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.7

Open this sounding in Storm Lab

The text

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

000 
WUUS52 KFFC 010758
SVRATL
GAC055-115-129-010845-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
358 AM EDT WED MAY 1 2002

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CHATTOOGA COUNTY IN NORTHWEST GEORGIA
  NORTHERN FLOYD COUNTY IN NORTHWEST GEORGIA
  WESTERN GORDON COUNTY IN NORTHWEST GEORGIA

* UNTIL 445 AM EDT

* AT 356 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS FROM 9 MILES WEST OF RESACA TO
  MENLO...MOVING SOUTHEAST AT 55 MPH.

* LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...CALHOUN...
LYERLY...MENLO...PLAINVILLE...RESACA...SHANNON...SUMMERVILLE AND
TRION.

HAIL TO THE SIZE OF DIMES AND WIND GUSTS TO 60 MPH CAN BE EXPECTED IN
THE WARNED AREA.

IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL AFTER THE STORM HAS PASSED...AND THEN CALL THE NATIONAL WEATHER
SERVICE TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.

LAT...LON 3460 8484 3455 8562 3424 8541 3428 8508

The office that day

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

IssuedProductOfficeCountiesLasted
May 1, 3:01 AM EDTSevere Thunderstorm WarningFFCDade29 min
May 1, 3:27 AM EDTSevere Thunderstorm WarningFFCCatoosa, Walker33 min
May 1, 3:40 AM EDTSevere Thunderstorm WarningFFCDade20 min
May 1, 4:22 AM EDTSevere Thunderstorm WarningFFCBartow, Cherokee, Gordon, Pickens38 min
May 1, 4:41 AM EDTTornado WarningFFCBartow, Cherokee34 min
May 1, 5:01 AM EDTSevere Thunderstorm WarningFFCForsyth, Fulton, Gwinnett, Hall29 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2002Every severe thunderstorm warning in 2002

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.