Alert archive / Georgia / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 40, NWS Atlanta, GA

June 9, 1986Clarke County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jun 9, 1986, 6:50 PM EDT for Clarke County, Georgia. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Jun 9, 1986, 6:50 PM EDT (22:50 UTC)
Expired
Jun 9, 1986, 7:50 PM EDT
In force
60 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Clarke 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, 10.8 hours before the alert went out and 6 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 1986-06-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 540 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 1986-06-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 23 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
540 J/kg
Mixed-layer CIN
-83 J/kg
Mixed-layer LCL
1231 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
23 m²/s²
0-3 km storm-relative helicity
29 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 092257
SVRAHN
GAC013-059-092350-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ATHENS GA
650 PM EDT MON JUN  9 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 750 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTIES:

IN NORTHEAST GEORGIA
          ..CLARKE..

AT 645 PM EDT THE ATHENS RADAR INDICATED VERY STRONG THUNDERSTORM
OVER WESTERN CLARKE COUNTY AND SOUTH OF ATHENS. MOVEMENT EAST
15 MILES AN HOUR.  TREES WERE REPORTED DOWN IN BARROW AND JACKSON
COUNTIES.
WHEN THUNDERSTORMS ARE OCCURRING, PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.

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, Jun 9, 2:24 PM EDT, 4 hours 26 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MACON GA
225 PM EDT MON JUN 9 1986

AT 215 PM RADAR IN MACON SHOWED NUMEROUS SCATTERED THUNDERSTORMS ACROSS
CENTRAL AND SOUTHCENTRAL GEORGIA. THE HEAVIEST WERE LOCATED BETWEEN
VIDALIA AND FITZGERALD AND NEAR UNADILLA IN SOUTHCENTRAL GEORGIA...
ALSO WEST OF MACON NORTH OF ROBERTA. MOVEMENT WAS NORTHEAST NEAR 5 MPH.

THESE STORMS ARE PRODUCING BRIEF VERY HEAVY RAIN...DANGEROUS LIGHTNING
STRIKES...GUST&Y WINDS...AND POSSIBLY SMALL HAIL.

PEOPLE OUTDOORS SHOULD OBSERVE LIGHTNING SAFETY RULES IN AND AROUND
THUNDERSTORMS.
Special weather statement, Jun 9, 3:37 PM EDT, 3 hours 13 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MACON GA
340 PM EDT MON JUN 9 1986

AT 330 PM RADAR IN MACON SHOWERD NUMEROUS THUNDERSTORMS MOVING ACROSS
CENTRAL GEORGIA. THE HEAVIEST WERE LOCATED NEAR MACON AND EXTENDED
SOUTH TO NEAR COCHRANE IN BLECKLEY COUNTY. ANOTHER AREA OF SCATTERED
THUNDERSTORMS WAS LOCATED FROM ABBEVILLE IN WILCOX COUNTY EAST TO NEAR
RHINE IN DODGE COUNTY. MOVEMENT WAS TO THE NORTHEAST AT 15 MILES AN
HOUR.

THESE THUNDERSTORMS WILL PRODUCE GUSTY SURFACE WINDS..DANGEROUS LIGHTING
AND SOME SMALL HAIL AS THEY MOVE ACROSS THE AREA THIS AFTERNOON.

PERSONS IN OR NEAR THE PATH OF THESE STORMS SHOULD REMAIN ALERT FOR
THREATING WEATHER AND BE PREPARED TO MOVE TO A SAFE PL/ACE IF
CONDITIONS WARRANT.
JWB/1936
Special weather statement, Jun 9, 5:48 PM EDT, 1 hour 2 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ATHENS GA
548 PM EDT MON JUN 9 1986

...STRONG THUNDERSTORMS DEVELOPING OVER NORTHEAST GEORGIA...

MOST OF THE THUNDERSTORMS WERE OCCURRING ACROSS THE WESTERN
PORTION OF THE NORTHEAST GEORGIA AREA. THESE THUNDERSTORMS WERE
NORTHEAST AT 10 MILES AN HOUR.

PERSONS IN NORTHEAST GEORGIA SHOULD BE ON THE ALERT FOR THE
NEXT 3 TO 4 HOURS FOR THESE THUNDERSTORMS AS THEY MOVE ACROSS
THE NORTHEAST GEORGIA AREA. GUSTY WINDS..DANGEROUS LIGHTNING..
HEAVY DOWNPOURS...AND POSSIBLE SMALL HAIL MAY OCCUR IN THE
STRONGER THUNDERSTORMS.

BOATERS AND OTHER WATER RECREATIONIST SHOULD BE ESPECIALLY
AWARE OF THESE STORMS.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 9, 2:38 PM EDTSevere Thunderstorm WarningFFCDodge57 min
Jun 9, 4:18 PM EDTSevere Thunderstorm WarningFFCDeKalb, Henry60 min
Jun 9, 5:00 PM EDTSevere Thunderstorm WarningFFCClayton, Fayette60 min
Jun 9, 6:25 PM EDTSevere Thunderstorm WarningFFCGreene, Morgan60 min
Jun 9, 6:35 PM EDTSevere Thunderstorm WarningFFCBarrow, Jackson, Oconee50 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.