Alert archive / Georgia / Flash Flood Warnings in 1990

Flash Flood Warning 67, NWS Atlanta, GA

October 12, 1990Burke County, Richmond County, Georgia

NWS Atlanta, GA issued this flash flood warning at Oct 12, 1990, 10:42 AM EDT for Burke County, Richmond County, Georgia. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Oct 12, 1990, 10:42 AM EDT (14:42 UTC)
Expired
Oct 12, 1990, 1:45 PM EDT
In force
3 hr
Issued by
NWS Atlanta, GA
Area
Whole counties

Counties Burke County, GA, Richmond County, GA

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Athens Municipal, GA (KAHN), launched 12:00Z, 2.7 hours before the alert went out and 143 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 1990-10-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1990-10-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 97 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
624 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
97 m²/s²
0-3 km storm-relative helicity
191 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 KAGS 121448 COR
FFWAGS
GAC033-245-121745-

BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING...CORRECTION....DROP AIKEN COUNTY IN BODY OF MESSAGE..
NATIONAL WEATHER SERVICE AUGUSTA GA
1042 AM EDT FRI OCT 12 1990

THE NATIONAL WEATHER SERVICE IN AUGUSTA HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  145 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN EAST CENTRAL GEORGIA

   ...BURKE COUNTY...RICHMOND COUNTY

DUE TO THE HEAVY RAINS THAT OCCURRED EARILER THIS MORNING SOME STREAMS
AND CREEKS IN THE AREA ARE JUST STARTING TO CREST..AS A RESULT THE
NATIONAL WEATHER SERVICE IS REISSUING THE FLASH FLOOD WARNING FOR
RICHMOND AND BURKE COUNTIES IN GEORGIA.
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT.  IT'S
IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR
CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS.  CAMPERS SHOULD
AVOID CAMPING ALONG STREAMS OR CREEKS DURING THREATENING RAINS.

MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES.  DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS
THE ROADWAY.  NEVER TRY TO CROSS A FLOWING STREAM...EVEN A
SMALL ONE...ON FOOT.

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 12, 4:28 AM EDTFlash Flood WarningFFCLaurens62 min
Oct 12, 5:32 AM EDTFlash Flood WarningFFCLaurens118 min
Oct 12, 7:43 AM EDTFlash Flood WarningFFCRichmond2 hr

Nearby

Flash Flood Warnings in Georgia, 1990Every flash flood warning in 1990

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.