Alert archive / Georgia / Flash Flood Warnings in 1992

Flash Flood Warning 1, NWS Atlanta, GA

July 22, 1992Bibb County, Georgia

NWS Atlanta, GA issued this flash flood warning at Jul 22, 1992, 7:09 PM EDT for Bibb County, Georgia. It was in force for 66 min.

The area

The counties it named.

The facts

Issued
Jul 22, 1992, 7:09 PM EDT (23:09 UTC)
Expired
Jul 22, 1992, 8:15 PM EDT
In force
66 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Bibb County, GA

The nearest sounding before it

Athens Municipal, GA (KAHN), launched 12:00Z, 11.2 hours before the alert went out and 132 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 1992-07-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1198 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, Athens Municipal, GA at 12:00Z on 1992-07-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 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
1198 J/kg
Mixed-layer CIN
-27 J/kg
Mixed-layer LCL
731 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
44 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMCN 222315 COR
FFWMCN
GAC021-230115-

BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING...CORRECTION
NATIONAL WEATHER SERVICE MACON GA
709 PM EDT WED JUL 22 1992

THE NATIONAL WEATHER SERVICE IN MACON GA HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  915 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN CENTRAL GEORGIA

   ...BIBB COUNTY

AT 705 PM OVER TWO INCHES OF RAIN HAD FALLEN IN ONE HOUR AT THE MACON
AIRPORT. THIS HEAVY RAIN WAS SPREADING NORTHEAST INTO THE MACON AREA
WHERE SERIOUS FLOODING WILL LIKELY OCCUR.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 22, 3:35 PM EDTSevere Thunderstorm WarningFFCRichmond55 min
Jul 22, 6:54 PM EDTSevere Thunderstorm WarningFFCBibb66 min

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.