Alert archive / Georgia / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 25, NWS Atlanta, GA

May 7, 1986Johnson County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at May 7, 1986, 7:38 PM EDT for Johnson County, Georgia. It was in force for 67 min.

The area

The counties it named.

The facts

Issued
May 7, 1986, 7:38 PM EDT (23:38 UTC)
Expired
May 7, 1986, 8:45 PM EDT
In force
67 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Johnson 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, 11.6 hours before the alert went out and 151 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 1986-05-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 891 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 1986-05-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -40 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
891 J/kg
Mixed-layer CIN
-39 J/kg
Mixed-layer LCL
951 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
-40 m²/s²
0-3 km storm-relative helicity
-32 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 072338
SVRAGS
GAC167-080045-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUGUSTA GA
738 PM EDT WED MAY 7 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 845 PM EDT FOR PEOPLE IN THE FOLLOWING 
COUNTY OF

EAST CENTRAL GEORGIA...JOHNSON

A SEVERE STORM WAS SHOWN BY RADAR 5 MILES NORTH OF
WRIGHTSVILLE GEORGIA ALONG THE WASHINGTON..JOHNSON
COUNTY LINE AND MOVING TOWARD THE SOUTHEAST. SMALL HAIL
AND GUSTY WINDS WERE REPORTED EARLIER IN A LESSER STORM
IN DOWNTOWN WRIGHTSVILLE.

 A SEVERE THUNDERSTORM IS DEFINED AS HAVING WINDS AT LEAST 58 MPH
 AND/OR HAIL 3/4 INCH IN DIAMETER OR LARGER. IF THREATENING
 WEATHER APPROACHES...TAKE IMMEDIATE PRECAUTIONS.

 THIS STORM IS ACCOMPANIED BY FREQUENT LIGHTNING AND STRONG GUSTY

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, May 7, 3:41 PM EDT, 3 hours 57 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ATHENS GA
340PM EDT WED MAY 7 1986

NUMEROUS THUNDERSTORMS..A FEW VERY HEAVY CONTINUE A CYCLE OF
DEVELOPING AND DISSIPATING ACROSS ALL PARTS OF NORTHEAST GEORGIA.

THESE THUNDERSTORMS ARE EXPECTED TO CONTINUE FOR THE NEXT TWO TO
THREE HOURS.

PERSONS ACROSS NORTHEAST GEORGIA SHOULD REMAIN ALERT FOR BRIEF HEAVY
RAIN..STRONG GUSTY SURFACE WINDS..FREQUENT CLOUD TO GROUND LIGHTNING
AND POSSIBLE SMALL HAIL AS THESE THUNDERSTORMS MOVE ACROSS THEIR AREA.

ADDITIONAL STATEMENTS OR WARNING WILL BE ISSUED AS NEEDED.
Special weather statement, May 7, 3:51 PM EDT, 3 hours 47 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ATHENS GA
350PM EDT WED MAY 7 1986

NUMEROUS THUNDERSTORMS..A FEW VERY HEAVY CONTINUE A CYCLE OF
DEVELOPING AND DISSIPATING ACROSS ALL PARTS OF NORTHEAST GEORGIA.

THESE THUNDERSTORMS ARE EXPECTED TO CONTINUE FOR THE NEXT TWO TO
THREE HOURS.

PERSONS ACROSS NORTHEAST GEORGIA SHOULD REMAIN ALERT FOR BRIEF HEAVY
RAIN..STRONG GUSTY SURFACE WINDS..FREQUENT CLOUD TO GROUND LIGHTNING
AND POSSIBLE SMALL HAIL AS THESE THUNDERSTORMS MOVE ACROSS THEIR AREA.

AT 345 PM EDT A NATIONAL WEATHER SERVICE EMPLOYEE REPORTS 1/4 TO 1/2
INCH HAIL COVERING THE GROUND AND WINDS ESTIMATED TO BE 30 TO 40 MILES
AN HOUR AT HIS HOME IN OGLETHORPE COUNTY.

ADDITIONAL STATEMENTS OR WARNING WILL BE ISSUED AS NEEDED.
Special weather statement, May 7, 5:28 PM EDT, 2 hours 10 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ATLANTA GA
527 PM EDT WED MAY 7 1986

AT 523 PM EDT...A STRONG THUNDERSTORM WAS LOCATED ACROSS NORTHERN
DEKALB COUNTY AND INTO SOUTHERN GWINNETT COUNTY IN THE NORTHEAST
METRO ATLANTA AREA.

THIS STRONG THUNDERSTORM IS PRODUCING VERY HEAVY RAIN AND PROBABLY
HAIL.

THE THUNDERSTORM WAS MOVING TO THE SOUTHEAST AT 20 MPH AND WILL
BE MOVING OVER THE STONE MOUNTAIN AREA SHORTLY. THE THUNDERSTORM
WI.LL BE MOVING BETWEEN LAWRENCEVILLE AND LITHONIA BEFORE 6PM.

PERSONS IN NORTH DEKALB AND SOUTH GWINNETT COUNTIES SHOULD BE
ALERT FOR THIS STORM AND TAKE NECESSARY PRECAUTIONS.
Special weather statement, May 7, 6:08 PM EDT, 1 hour 30 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ATLANTA GA
607 PM EDT WED MAY 7 1986

AT 605 PM EDT...STRONG THUNDERSTORMS WERE LOCATED ACROSS THE
METRO ATLANTA AREA. HAIL HAS BEEN REPORTED ALONG WITH VERY HEAVY
RAIN IN THE BUCKHEAD AREA OF ATLANTA.

THE THUNDERSTORMS WERE MOVING TO THE SOUTHEAST AT 20 MPH AND WILL
CONTINUE TO AFFECT THE METRO ATLANTA AREA FOR THE NEXT HOUR.

PERSONS IN THE ATLANTA AREA...ESPECIALLY IN THE DOWNTOWN AREA...
SSHOULD REMAIN ALERT AND TAKE PRECAUTIONS FROM THESE STORMS.
Special weather statement, May 7, 7:16 PM EDT, 22 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ATLANTA GA
715 PM EDT WED MAY 7 1986

AT 710 PM EDT RADAR INDICATED VERY STRONG THUNDERSTORMS OVER
HENRY COUNTY. THE THUNDERSTORMS WERE MOVING SOUTHEAST AT ABOUT
20 MILES AN HOUR.

AS THE HEAVY THUNDERSTORMS MOVED ACROSS ATLANTA HARTSFIELD AIRPORT
BRIEF HEAVY RAIN OCCURRED ALONG WITH MARBLE SIZE HAIL AND WIND GUST
TO 39 MILES AN HOUR. PARTS OF ATLANTA HAVE REPORTED OVER AN INCH
OF RAIN WITH THESE STORMS BUT AT THE AIRPORT ONLY .14 INCH OF RAIN
FELL.

THE THUNDERSTORMS OVER HENRY COUNTY WILL MOVE SOUTHEASTWARD INTO
SPALDING AND BUTTS COUNTIES DURING THE NEXT HOUR. A PERIOD OF
VERY HEAVY RAIN ALONG WITH SMALL HAIL AND GUSTY SURFACE WINDS
ARE STILL POSSIBLE WITH THESE STORMS. PERSONS IN HENRY..BUTTS..
AND SPALDING COUNTIES SHOULD REMAIN ALERT TO THESE STORMS.
Special weather statement, May 7, 7:19 PM EDT, 19 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MACON GA
716 PM EDT WED MAY 7 1986

AT 710 PM A STRONG THUNDERSTORM WAS MOVING INTO NORTHWEST JASPER COUNTY
TOWARD MONTICELLO. AT ITS PRESENT SPEED IT SHOULD MOVE OVER MONTICELLO
WITHIN THE NEXT HOUR.

THIS THUNDERSTORM HAS PRODUCED HAIL IN COVINGTON DURING THE PAST HOUR
BUT HAS DECREASED SINCE THEN. HEAVY RAINS...STRONG GUSTY WINDS...
DANGEROUS LIGHTNING STRIKES AND POSSIBLY SMALL HAIL ARE STILL LIKELY
AS THIS THUNDERSTORM MOVES SOUTHEAST.

PEOPLE IN THE AREA OF THIS STRONG THUNDERSTORM SHOULD TAKE APPROPRIATE
PRECAUTIONS SUCH GETTING UNDER SHELTER AND AVOIDING LIGHTNING PRONE
LOCATIONS AND ACTIVITIES.

The office that day

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

IssuedProductOfficeCountiesLasted
May 7, 3:53 PM EDTSevere Thunderstorm WarningFFCWilkes67 min
May 7, 4:22 PM EDTSevere Thunderstorm WarningFFCBarrow, Hall, Jackson53 min
May 7, 6:31 PM EDTSevere Thunderstorm WarningFFCNewton59 min
May 7, 7:25 PM EDTSevere Thunderstorm WarningFFCJohnson65 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.