Alert archive / Georgia / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 65, NWS Atlanta, GA

July 27, 1986Barrow County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 27, 1986, 2:03 PM EDT for Barrow County, Georgia. It was in force for 57 min.

The area

The counties it named.

The facts

Issued
Jul 27, 1986, 2:03 PM EDT (18:03 UTC)
Expired
Jul 27, 1986, 3:00 PM EDT
In force
57 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Barrow 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

Centreville/Bibb, AL (KCKL), launched 12:00Z, 6.1 hours before the alert went out and 346 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, Centreville/Bibb, AL at 12:00Z on 1986-07-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1326 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, Centreville/Bibb, AL at 12:00Z on 1986-07-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 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
1326 J/kg
Mixed-layer CIN
-55 J/kg
Mixed-layer LCL
695 m above ground
0-6 km bulk shear
0 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
0 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 KAHN 271803
SVRAHN
GAC013-271900-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ATHENS GA
203 PM EDT SUN JUL 27 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 300 PM EDT FOR PEOPLE IN THE FOLLOWING 
COUNTY OF

NORTHEAST GEORGIA...WESTERN BARROW

AT 1 PM EDT A SEVERE THUNDERSTORM WAS INDICATED ALONG THE
GWINNETT-BARROW COUNTY LINE OR ABOUT 10 MILES WEST OF WINDER.
LITTLE MOVEMENT WAS INDICATED

 IF THREATENING CONIDTIONS ARE SIGHTED..SEEK REINFORCED SHELTER
 AND PREPARE FOR STRONG DAMAGING WIND..LARGE HAIL..VERY HEAVY RAIN
 AND LIGHTNING. REMEMBER THESE STORMS CAN OCCASIONALLY PRODUCE A
 TORNADO WITH LITTLE OR NO ADVANCE WARNING.

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 27, 12:55 PM EDT, 1 hour 8 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ATHENS GEORGIA
1255  PM EDT SUN JUL 27 1986

THUNDERSTORMS FORMING AT A RAPID RATE OVER THE NORTHERN PART OF
GEORGIA AT 1 PM THIS AFTERNOON..

MAIN FORMING AREA HAS BEEN FROM ATHENS NORTHWESTWARD.

SEVERE CLOUD TO GROUND LIGHTNING IS EXPECTED ALONG WITH BRIEF
GUSTY WINDS AND HEAVY DOWNPOURS..

PERSONS SHOULD SEEK SHELTER AWAY FROM THE STORMS AS THEY FORM
NEAR THEM.

BOATERS SHOULD BE VERY ALERT TO ANY FORMING CLOUDS IN THEIR AREA.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 27, 1:13 PM EDTSevere Thunderstorm WarningFFCGwinnett62 min
Jul 27, 1:38 PM EDTSevere Thunderstorm WarningFFCCobb, Fulton57 min
Jul 27, 2:19 PM EDTSevere Thunderstorm WarningFFCRabun56 min
Jul 27, 3:25 PM EDTSevere Thunderstorm WarningFFCHall50 min
Jul 27, 4:10 PM EDTSevere Thunderstorm WarningFFCCobb, Paulding50 min
Jul 27, 7:43 PM EDTSevere Thunderstorm WarningFFCHouston, Twiggs62 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.