Alert archive / Georgia / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 96, NWS Charleston, SC

September 16, 1997Long County, Georgia

NWS Charleston, SC issued this severe thunderstorm warning at Sep 16, 1997, 2:51 PM EDT for Long County, Georgia. It was in force for 54 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Sep 16, 1997, 2:51 PM EDT (18:51 UTC)
Expired
Sep 16, 1997, 3:45 PM EDT
In force
54 min
Issued by
NWS Charleston, SC
Area
Whole counties

County Long County, GA

The radar

The Charleston,SC radar (KCLX), 120 km from the middle of the area, began a volume at 18:52 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 6.9 hours before the alert went out and 139 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, Jacksonville, FL at 12:00Z on 1997-09-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 993 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, Jacksonville, FL at 12:00Z on 1997-09-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 17 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
993 J/kg
Mixed-layer CIN
-67 J/kg
Mixed-layer LCL
1019 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
17 m²/s²
0-3 km storm-relative helicity
48 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 KCHS 161851 RRA
SVRCHS
GAC183-161945-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
251 PM EDT TUE SEP 16 1997
 
THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  345 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN  GEORGIA
 
   ...LONG COUNTY
 
AT 245 PM NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM
OVER LONG COUNTY 10 MILES SOTHEAST OF LUDOWICI AND ABOUT 6 MILES NORTH
OF TOWNSEND IN MCINTOSH COUNTY ALONG STATE ROUTE 57. THE THUNDERSTORM IS
MOVING SLOWLY TO THE SOUTHEAST.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING.0..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.

NWS Charleston, SC wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 16, 1:42 PM EDT, 1 hour 9 minutes earlier.

Area forecast discussion, Sep 16, 1:42 PM EDT, 1 hour 9 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHARLESTON SC
1 PM EDT TUE SEP 16 1997

LIMITED MODEL DATA TO WORK WITH SO FCST WILL BE BASED MAINLY ON
PERSISTENCE WITH NO MAJOR CHANGES IN OVERALL PATTERN. H2O VAP INDICATES
A NEARLY STATIONARY VORT CENTER OVER SE GA. THIS FEATURE NOT PROGGED TO
MOVE MUCH THROUGH TONIGHT SO GOOD MID-LEVEL DRYING NOW EVIDENT ON
IMAGERY OVER MIDLANDS WILL BE SLOW TO MOVE EAST. WITH THIS TROFFINESS
AND ASSOCIATED POCKET OF COLD AIR ALOFT REMAINING CLOSE BY ATMOSPHERE
WILL REMAIN SOMEWHAT UNSTABLE AND THIS COMBINED WITH SFC TROF OFFSHORE
SHUD WARRANT KEEPING A SLIGHT RISK OF SHRA ALONG THE COAST TONIGHT.
FURTHER...WITH AIRMASS REMAINING JULY-LIKE HERE ALONG THE COAST PREFER
TO KEEP THE MENTION OF TSRA DURING THE AFTERNOON NEXT SEVERAL DAYS.
SHALLOW COASTAL FLOODING THREAT WILL CONTINUE FOR HIGH TIDES.

FOR CWF...ADAP SSW STREAMLINES SHOWING BROAD NE FLOW SETTING UP BEHIND
SFC TROF. RANGE FOR WINDS OFFSHORE SHUD BE NE TO SE THROUGH TOMMORROW.

SOUTH COAST /CHS-NBC/
.TONIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF A SHOWER OR
THUNDERSTORM...MAINLY ALONG THE IMMEDIATE COAST. LOW FROM AROUND 70
INLAND TO UPPER 70S COAST. LIGHT EAST WIND.
.WEDNESDAY...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF AN AFTERNOON
THUNDERSTORM. HIGH FROM THE UPPER 80S COAST TO LOWER 90S INLAND. LIGHT
EAST WIND BECOMING SOUTHEAST 5 TO 10 MPH.
.WEDNESDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF A SHOWER
OR THUNDERSTORM. LOW FROM AROUND 70 INLAND TO UPPER 70S COAST.
.THURSDAY...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF A SHOWER OR
THUNDERSTORM. HIGH FROM THE UPPER 80S COAST TO LOWER 90S INLAND.

CWF
.TONIGHT...VARIABLE MOSTLY E WIND 10 KT. SEAS 2 FT. WIZDELY SCATTERED
SHOWERS OR TSTMS.
.WED AND WED NIGHT...VARIABLE MOSTLY E WIND 10 KT. SEAS 2 FT. WIDELY
SCATTERED SHOWERS OR TSTMS.
.THU...S WIND 10 KT. SEAS 2 FT. WIDELY SCATTERED SHOWERS OR TSTMS.

SIMENSKY

Nearby

Severe Thunderstorm Warnings in Georgia, 1997Every severe thunderstorm warning in 1997

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; radar from the NEXRAD Level II archive.