Alert archive / Georgia / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 21, NWS Jacksonville, FL

June 25, 1992Liberty County, Long County, Georgia

NWS Jacksonville, FL issued this severe thunderstorm warning at Jun 25, 1992, 7:27 PM EDT for Liberty County, Long County, Georgia. It was in force for 63 min.

The area

The counties it named.

The facts

Issued
Jun 25, 1992, 7:27 PM EDT (23:27 UTC)
Expired
Jun 25, 1992, 8:30 PM EDT
In force
63 min
Issued by
NWS Jacksonville, FL
Area
Whole counties

Counties Liberty County, GA, Long County, GA

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 11.5 hours before the alert went out and 195 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 1992-06-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1915 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Charleston AFB, SC at 12:00Z on 1992-06-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 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
1915 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
830 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
15 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 KSAV 252328
SVRSAV
GAC179-183-260030-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SAVANNAH GA
727 PM EDT THU JUN 25 1992
 
THE NATIONAL WEATHER SERVICE IN SAVANNAH HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  830 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHEAST GEORGIA
 
   ...EASTERN LIBERTY COUNTY...EASTERN LONG COUNTY
 
 
 
 
AT 5:20 PM RADAR SHOWED A SEVERE THUNDERSTORM MOVING INTO
SOUTHEAST LONG COUNTY JUST EAST OF DOCTORTOWN. THIS THUNDERSTORM
IS MOVING NORTHEAST AT ABOUT 15 MPH AND SHOULD BE MOVING
INTO LIBERTY COUNTY JUST EAST OF ALLENHURST BT 6 PM.
 
STAY TUNED TO THE NOAA WEATHER RADIO OR YOUR LOCAL TV OR
RADIO STATION FOR UPDATES AS THEY ARE NEEDED ON THIS STORM.
 
 
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR*
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

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 25, 6:28 PM EDT, 59 minutes before
FLZ008-009-260030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
627 PM EDT THU JUN 25 1992

AT 620 PM EDT NATIONAL WEATHER SERVICE RADARS SHOWED A AREA OF RAIN
WITH SOME THUNDERSTORMS WITH HEAVY RAIN FROM OCALA AND PALATKA NORTH
THROUGH THE JACKSONVILLE AREA INTO SOUTHEAST GEORGIA AND OUT OVER THE
COASTAL WATERS. THUNDERSTORMS ARE MOVING NORTH AT 15 MILES AN HOUR.

AS THESE THUNDERSTORMS MOVED THROUGH ST AUGUSTINE AND DAYTONA BEACH
RAIN TOTALS GREATHER THAN 2 INCHES WERE COMMON. ALSO THE WIND HAS
GUSTED TO 39 MILES AN HOUR AT THE JACKSONVILLE INTERNATIONAL AIRPORT
DURING THE PAST HOUR.

THUNDERSTORMS PRODUCING LOCALLY HEAVY RAINS WILL CAUSE TEMPORARY
FLOODING OF SMALL CREEKS...LOW LYING AREAS...DRAINAGE DITCHES...AND
UNDERPASSES FOR THE NEXT TWO HOURS.

MARINE INTEREST OPERATING IN THE COASTAL WATERS OFF FERNANDINA BEACH
SOUTH TO ST AUGUSTINE BE AWARE OF THE THREAT OF HIGH WINDS AND ROUGH
SEAS WITH THESE, THUNDERSTORMS. BE PREPARED TO SEEK SAFE HARBOR.

Nearby

Severe Thunderstorm Warnings in Georgia, 1992Every severe thunderstorm warning in 1992

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.