Alert archive / Georgia / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 546, NWS Atlanta, GA

July 24, 1999Bibb County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 24, 1999, 8:08 PM EDT for Bibb County, Georgia. It was in force for 32 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
Jul 24, 1999, 8:08 PM EDT (00:08 UTC)
Expired
Jul 24, 1999, 8:40 PM EDT
In force
32 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Bibb County, GA

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 0.1 hours before the alert went out and 274 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, Tallahassee Rgnl, FL at 00:00Z on 1999-07-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1740 joules per kilogram.LCLEL10008507005003002001001 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, Tallahassee Rgnl, FL at 00:00Z on 1999-07-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -16 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
1740 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
1162 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
-16 m²/s²
0-3 km storm-relative helicity
-4 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 24, 8:03 PM EDTSevere Thunderstorm WarningFFCMarion, Schley32 min
Jul 24, 8:13 PM EDTSevere Thunderstorm WarningFFCMacon32 min
Jul 24, 8:32 PM EDTSevere Thunderstorm WarningFFCHouston33 min
Jul 25, 6:03 PM EDTSevere Thunderstorm WarningFFCTalbot32 min
Jul 25, 6:14 PM EDTSevere Thunderstorm WarningFFCTaylor36 min
Jul 25, 6:45 PM EDTSevere Thunderstorm WarningFFCHarris, Talbot35 min
Jul 25, 6:48 PM EDTSevere Thunderstorm WarningFFCTaylor32 min
Jul 25, 7:01 PM EDTSevere Thunderstorm WarningFFCCrawford34 min
Jul 25, 7:31 PM EDTSevere Thunderstorm WarningFFCHarris, Talbot49 min

Nearby

Severe Thunderstorm Warnings in Georgia, 1999Every severe thunderstorm warning in 1999

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.