Alert archive / Georgia / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 59, NWS Atlanta, GA

July 23, 1986Bibb County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 23, 1986, 6:38 PM EDT for Bibb County, Georgia. It was in force for 67 min.

The area

The counties it named.

The facts

Issued
Jul 23, 1986, 6:38 PM EDT (22:38 UTC)
Expired
Jul 23, 1986, 7:45 PM EDT
In force
67 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Bibb 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, 10.6 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 1986-07-23Temperature 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 1986-07-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -13 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
NaN m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
-13 m²/s²
0-3 km storm-relative helicity
-5 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 232238
SVRMCN
GAC021-232345-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MACON GA
638 PM EDT WED JUL 23 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 745 PM EDT FOR PEOPLE IN THE FOLLOWING 
COUNTY OF

CENTRAL GEORGIA...BIBB

AT 545 PM EDT A POSSIBLE SEVERE THUNDERSTORM WAS INDICATED
BY RADAR OVER THE CITY OF MACON GEORGIA MOVING SLOWLY SOUTHEAST.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jul 23, 1:09 PM EDT, 5 hours 29 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ATHENS GEORGIA.
1310 PM EDT WED JUL 23 1986

SCATTERED THUNDERSTORMS ARE EXPECTED THIS AFTERNOON OVER THE MOUNTAINS
OF NORTHEAST GEORGIA.

PERSONS IN AREAS WHERE THUNDERSTORMS OCCUR CAN EXPECT HEAVY RAIN...GUSTY
WINDS AND DANGEROUS LIGHTNING. TAKE SHELTER IF THREATENING WEATHER
APPROACHES. DRIVERS SHOULD USE CAUTION AS SUDDEN DOWNPOURS WILL CAUSE
EXTREMELY REDUCED VISIBILITIES AND PONDING OF WATER ON ROADWAYS. HEAVY
RAIN MAY ALSO PRODUCE SOME MINOR SMALL STREAM OR URBAN FLOODING.
Special weather statement, Jul 23, 1:12 PM EDT, 5 hours 26 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ATHENS GEORGIA.
110 PM EDT WED JUL 23 1986

SCATTERED THUNDERSTORMS ARE EXPECTED THIS AFTERNOON OVER THE MOUNTAINS
OF NORTHEAST GEORGIA.

PERSONS IN AREAS WHERE THUNDERSTORMS OCCUR CAN EXPECT HEAVY RAIN...GUSTY
WINDS AND DANGEROUS LIGHTNING. TAKE SHELTER IF THREATENING WEATHER
APPROACHES. DRIVERS SHOULD USE CAUTION AS SUDDEN DOWNPOURS WILL CAUSE
EXTREMELY REDUCED VISIBILITIES AND PONDING OF WATER ON ROADWAYS. HEAVY
RAIN MAY ALSO PRODUCE SOME MINOR SMALL STREAM OR URBAN FLOODING.
Special weather statement, Jul 23, 5:39 PM EDT, 59 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE ATHENS GEORGIA
530 PM EDT WED JUL 23 1986

A BAND OF STRONG THUNDERSTORMS EXTENDS ACROSS NORTHEAST GEORGIA
FROM THE NORTHERN PORTION OF CLARK HILL RESERVOIR TO JUST NORTH
OF ATHENS AND TO NEAR DAHLONEGA. THESE STORMS ARE CAPABLE OF
PRODUCING HEAVY RAINS, STRONG GUSTY WINDS, DANGEROUS LIGHTNING
AND POSSIBLY SOME SMALL HAIL. LITTLE MOVEMENT WAS INDICATED.

OTHER STRONG THUNDERSTORMS WERE LOCATED FROM NEAR THOMASTON TO
THE ATLANTA AREA.

ELSEWHERE...ISOLATED SHOWERS AND THUNDERSTORMS WERE OCCURRING OVER
THE NORTHERN HALF OF GEORGIA, EASTERN ALABAMA, SOUTHEAST TENNESSEE
AND THE WESTERN CAROLINAS.

LITTLE MOVEMENT WAS INDICATED.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 23, 6:05 PM EDTSevere Thunderstorm WarningFFCDeKalb, Fulton55 min
Jul 23, 6:40 PM EDTSevere Thunderstorm WarningFFCBen Hill, Irwin55 min

Nearby

Severe Thunderstorm Warnings in Georgia, 1986Every severe thunderstorm warning in 1986

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.