Alert archive / Georgia / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 13, NWS Jacksonville, FL

March 13, 1986Bulloch County, Effingham County, Georgia

NWS Jacksonville, FL issued this severe thunderstorm warning at Mar 13, 1986, 4:41 PM EST for Bulloch County, Effingham County, Georgia. It was in force for 64 min.

The area

The counties it named.

The facts

Issued
Mar 13, 1986, 4:41 PM EST (21:41 UTC)
Expired
Mar 13, 1986, 5:45 PM EST
In force
64 min
Issued by
NWS Jacksonville, FL
Area
Whole counties

Counties Bulloch County, GA, Effingham 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

Charleston AFB, SC (KCHS), launched 12:00Z, 9.7 hours before the alert went out and 155 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, Charleston AFB, SC at 12:00Z on 1986-03-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 926 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Charleston AFB, SC at 12:00Z on 1986-03-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 138 square meters per square second.193958Sfc1 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
926 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
573 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
138 m²/s²
0-3 km storm-relative helicity
144 m²/s²
Significant tornado parameter
0.5
Supercell composite
4.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSAV 132141
SVRSAV
GAC031-103-132245-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SAVANNAH GA
441 PM EST THU MAR 13 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 545 PM EST FOR PEOPLE IN THE FOLLOWING 
COUNTIES OF

SOUTHEAST GEORGIA...EXTREME EASTERN BULLOCH AND EFFINGHAM

AT 435 PM EST A SEVERE THUNDERSTORM WAS INDICATED BY WEATHER RADAR
IN EXTEME SOUTHERN BULLOCH COUNTY. THIS STORM WILL MOVE TOWARD
SPRINGFIELD IN EFFINGHAM COUNTY WITHIN THE HOUR.

REMEMBER...SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE A
TORNADO WITH LITTLE OR NO WARNING...SO BE ON THE LOOKOUT.

THIS THUNDERSTORM WILL LIKELY PRODUCE WINDS IN EXCESS OF 60 MILES AN
HOUR AND HAIL 3/4 INCH OR LARGER IN DIAMETER.

THIS STORM IS ACCOMPANIED BY DANGEROUS LIGHTNING...GO INDOORS UNTIL
IT MOVES AWAY FROM YOUR AREA.

The office that day

Everything else NWS Jacksonville, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 13, 2:10 PM ESTTornado WarningJAXWayne3 hr
Mar 13, 3:18 PM ESTTornado WarningJAXAppling, Tattnall57 min
Mar 13, 3:24 PM ESTSevere Thunderstorm WarningJAXBulloch66 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.