Alert archive / Georgia / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 820, NWS Atlanta, GA

July 19, 1998Chattooga County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 19, 1998, 7:58 PM EDT for Chattooga County, Georgia. It was in force for 32 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
Jul 19, 1998, 7:58 PM EDT (23:58 UTC)
Expired
Jul 19, 1998, 8:30 PM EDT
In force
32 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Chattooga County, GA

What was reported inside it

TimeReportWhereRemark
Jul 19, 8:00 PM EDTThunderstorm WindCountywide, GAThe Chattooga county sheriff's office reported trees and power lines were knocked down county-wide.

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 12:00Z, 12.0 hours before the alert went out and 146 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 12:00Z on 1998-07-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 78 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 12:00Z on 1998-07-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 11 square meters per square second.1939Sfc1 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
78 J/kg
Mixed-layer CIN
-174 J/kg
Mixed-layer LCL
1743 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
11 m²/s²
0-3 km storm-relative helicity
-3 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 19, 5:35 PM EDTSevere Thunderstorm WarningFFCDodge35 min
Jul 19, 6:17 PM EDTSevere Thunderstorm WarningFFCDodge, Wilcox33 min
Jul 19, 6:26 PM EDTSevere Thunderstorm WarningFFCWalker34 min
Jul 19, 6:43 PM EDTSevere Thunderstorm WarningFFCGordon, Pickens32 min
Jul 19, 6:50 PM EDTSevere Thunderstorm WarningFFCCatoosa, Whitfield35 min
Jul 19, 7:08 PM EDTSevere Thunderstorm WarningFFCWilcox37 min
Jul 19, 7:29 PM EDTFlash Flood WarningFFCCatoosa, Walker, Whitfield2 hr
Jul 19, 7:35 PM EDTSevere Thunderstorm WarningFFCWilkinson35 min
Jul 19, 7:50 PM EDTSevere Thunderstorm WarningFFCWalker35 min
Jul 19, 7:53 PM EDTSevere Thunderstorm WarningFFCCherokee37 min

Nearby

Severe Thunderstorm Warnings in Georgia, 1998Every severe thunderstorm warning in 1998

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.