Alert archive / Georgia / Flash Flood Warnings in 1992

Flash Flood Warning 18, NWS Atlanta, GA

November 25, 1992Clayton County, Georgia

NWS Atlanta, GA issued this flash flood warning at Nov 25, 1992, 2:15 PM EST for Clayton County, Georgia. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Nov 25, 1992, 2:15 PM EST (19:15 UTC)
Expired
Nov 25, 1992, 5:00 PM EST
In force
3 hr
Issued by
NWS Atlanta, GA
Area
Whole counties

County Clayton County, GA

The nearest sounding before it

Athens Municipal, GA (KAHN), launched 12:00Z, 7.3 hours before the alert went out and 108 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, Athens Municipal, GA at 12:00Z on 1992-11-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Athens Municipal, GA at 12:00Z on 1992-11-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 229 square meters per square second.19395878Sfc1 km3 km6 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
620 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
229 m²/s²
0-3 km storm-relative helicity
220 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
Nov 25, 6:12 AM ESTSevere Thunderstorm WarningFFCMorgan, Newton, Walton48 min
Nov 25, 6:42 AM ESTSevere Thunderstorm WarningFFCClarke, Jackson, Oconee33 min
Nov 25, 9:56 AM ESTFlash Flood WarningFFCDeKalb, Fulton4 hr
Nov 25, 10:42 AM ESTFlash Flood WarningFFCCobb, Douglas4 hr
Nov 25, 10:42 AM ESTFlash Flood WarningFFCClayton4 hr
Nov 25, 10:42 AM ESTFlash Flood WarningFFCGwinnett4 hr
Nov 25, 2:15 PM ESTFlash Flood WarningFFCDeKalb, Fulton, Gwinnett3 hr
Nov 25, 2:15 PM ESTFlash Flood WarningFFCCobb, Douglas3 hr

Nearby

Flash Flood Warnings in Georgia, 1992Every flash flood warning in 1992

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.