Alert archive / Georgia / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 6, NWS Atlanta, GA

March 13, 1986Morgan County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Mar 13, 1986, 9:34 AM EST for Morgan County, Georgia. It was in force for 26 min.

The area

The counties it named.

The facts

Issued
Mar 13, 1986, 9:34 AM EST (14:34 UTC)
Expired
Mar 13, 1986, 10:00 AM EST
In force
26 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Morgan 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, 2.6 hours before the alert went out and 44 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 1986-03-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 391 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 1986-03-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 373 square meters per square second.19395878Sfc1 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
391 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
464 m above ground
0-6 km bulk shear
70 kt
0-1 km storm-relative helicity
373 m²/s²
0-3 km storm-relative helicity
371 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.4

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KAHN 131434
SVRAHN
GAC211-131500-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ATHENS GA
934 AM EST THU MAR 13 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 1000 AM EST FOR PEOPLE IN THE FOLLOWING 
COUNTY OF

NORTHEAST GEORGIA...MORGAN

AT 930 AM EST A SEVERE THUNDERSTORM WAS INDICTED BY RADAR 15
MILES SOUTHEAST OF COVINGTON GEORGIA AND WAS MOVING TO THE
NORTHEAST AT 40 MPH.

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

Local storm report, Mar 13, 8:38 AM EST, 56 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ATLANTA GA
835 AM EST THU MAR 12 1986

ROCKDALE COUNTY SHERRIFFS OFFICE RELAYED REPORT FROM PUBLIC OF 3 TREES
UPROOTED IN BACKYARD OF HOME IN SOUTH ROCKDALE COUNTY.  OCCURRED ABOUT
815 AM EST.
Local storm report, Mar 13, 8:52 AM EST, 42 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ATLANTA GA
850 AM EST THU MAR 12 1986

AMATEUR RADIO REPORTS SEVERAL LARGE TREES DOWN IN HENRY COUNTY JUST
EAST OF STOCKBRIDGE.  OCCURRED ABOUT 815 AM EST.

CLAYTON COUNTY COMMUNICATIONS REPORTS MANY TREES DOWN IN SMALL PATH
IN EXTREME SOUTH CLAYTON NEAR LOVEJOY.  TIME OF OCCURRENCE UNKNOWN,
PROBABLY AROUND 8 AM.
Special weather statement, Mar 13, 9:11 AM EST, 23 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBUS, GA
912 AM EST THU MAR 13 1986

NATIONAL WEATHER SERVICE RADAR SHOWS A LINE OF THUNDERSTORMS MOVING
ACROSS EAST CENTRAL ALABAMA...WEST CENTRAL GEORGIA. THIS LINE EXTENDED
FROM NEAR NEWNAN TO COLUMBUS GEORGIA TO NEAR EUFAULA ALABAMA.
THE STRONGEST THUNDERSTORM WAS NEAR COLUMBUS IN WEST CENTRAL GEORGIA.

STRONG GUSTY WINDS AND VERY HEAVY RAIN CAN BE EXPECTED WITH THIS
LINE OF THUNDERSTORMS. STREET FLOODING IS OCCURRING IN COLUMBUS
GEORGIA AT THIS TIME.

INDIVIDAL STORMS IN THIS LINE WERE MOVING TO THE NORTHEAST AT 40 MILES
AN HOUR.

PEOPLE IN EAST CENTRAL ALABAMA..WEST CENTRAL AND SOUTH WEST GEORGIA..
SHOULD CONTINUE TO MONITOR WEATHER CONDITIONS CLOSELY FOR THE NEXT
COUPLE OF HOURS.
Special weather statement, Mar 13, 9:18 AM EST, 16 minutes before
SPECIAL WEATHER STATMENT
NATIONAL WEATHER SERVICE MACON GA
915AM EST THU MAR 13 1986

....LINE OF THUNDERSTORMS APPROACHING CENTRAL GEORGIA....

AT 910 AM EST WEATHER SERVICE RADAR SHOWED A LINE OF THUNDERSTORMS
EXTENDING FROM NEAR ATHENS SOUTHWEST TO THOMASTON IN UPSON COUNTY
THEN SOUTHWEST TO NEAR COLUMBUS.

THIS LINE OF THUNDERSTORMS WAS MOVING EAST AT 15 MPH AND WILL BE
MOVING INTO AND ACROSS JASPER AND MONROE COUNTIES OF CENTRAL GEORGIA
DURING THE NEXT HOUR.

THESE THUNDERSTORMS WILL PRODUCE BRIEF VERY HEAVY RAIN..GUSTY WINDS..
AND POSSIBLE SMALL HAIL AS THEY PASS THROUGH THE AREA.
Special weather statement, Mar 13, 9:18 AM EST, 16 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ATHENS GA
 920 AM EST THU MAR 13 1986

 THE SEVERE THUNDERSTROM WARNING IS CANCELLED FOR BARROW AND
JACKSON COUNTIES..

THE THUNDERSTORM IN THAT AREA HAS WEAKEN..

A STRONG LINE OF THUNDERSTORMS CONTINUE THROUGH THE MID SECTION OF
NORTHEAST GEORGIA MOVING TOWARD THE EAST...

PERSONS SHOULD REMAIN ALERT UNTIL THIS LINE PASSES THEIR AREA.
Local storm report, Mar 13, 9:26 AM EST, 8 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ATLANTA GA
924 AM EST THU MAR 12 1986

GEORGIA EMERGENCY MANAGEMENT RELAYED REPORT RECEIVED FROM FAYETTE
COUNTY, 5 MILES SOUTH FAYETTEVILLE. REPORTED TREES DOWN, BARN
DAMAGED.  TIME REPORTED AS 855 AM EST.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 13, 8:37 AM ESTSevere Thunderstorm WarningFFCWalton68 min
Mar 13, 8:49 AM ESTSevere Thunderstorm WarningFFCBarrow, Jackson56 min
Mar 13, 12:03 PM ESTSevere Thunderstorm WarningFFCCrawford, Monroe57 min
Mar 13, 3:11 PM ESTSevere Thunderstorm WarningFFCTreutlen64 min
Mar 13, 4:03 PM ESTSevere Thunderstorm WarningFFCDodge57 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.