Alert archive / South Carolina / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 98, NWS Atlanta, GA

July 1, 1992Allendale County, Barnwell County, South Carolina; Screven County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 1, 1992, 3:35 PM EDT for Allendale County, Barnwell County, South Carolina; Screven County, Georgia. It was in force for 55 min.

The area

The counties it named.

The facts

Issued
Jul 1, 1992, 3:35 PM EDT (19:35 UTC)
Expired
Jul 1, 1992, 4:30 PM EDT
In force
55 min
Issued by
NWS Atlanta, GA
Area
Whole counties

Counties Screven County, GA, Allendale County, SC, Barnwell County, SC

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 7.6 hours before the alert went out and 137 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 1992-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Charleston AFB, SC at 12:00Z on 1992-07-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 64 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
NaN m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
64 m²/s²
0-3 km storm-relative helicity
55 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KAGS 011938
SVRAGS
GAC251-SCC005-011-012030-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUGUSTA GA
335 PM EDT WED JUL 1 1992
 
THE NATIONAL WEATHER SERVICE IN AUGUSTA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  430 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN EAST CENTRAL GEORGIA
 
   ...NORTHERN SCREVEN COUNTY
 
 
IN WEST CENTRAL SOUTH CAROLINA
 
   ...NORTHERN ALLENDALE COUNTY...BARNWELL COUNTY
 
NATIONAL WEATHER SERVICE RADAR IS DETECTING A SEVERE THUNDERSTORM IN
NORTHERN SCREVEN COUNTY GEORGIA MOVING TO THE NORTHEAST AT 25 TO 30
MPH.
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGINfG WIND...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

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, Jul 1, 12:07 PM EDT, 3 hours 28 minutes before
GAZ005-ALZ012-011715-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBUS GA
1206 PM EDT WED JUL 1 1992

...STRONG THUNDERSTORMS MOVING INTO THE COLUMBUS AND PHENIX CITY
AREAS...

AT 1202
Local storm report, Jul 1, 1:57 PM EDT, 1 hour 38 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBUS, GA
155 PM EDT WED JUL 1 1992

REF STORM ACTIVITY 7/1/92

COUNTY.....  SUMTER, GEORGIA
SOURCE.....  SUMTER SHERIFF OFFICE
TIME.......  125 PM EDT/1735Z
LOCATION...  CITY OF AMERICUS...SCATTERED THROUGHOUT CITY
TYPE STORM.  SEVERE THUNDERSTORM
HAIL.......  NONE REPORETED
DAMAGE.....  NUMEROUS TREES DOWN...POWER LINES DOWN...POWER OUT FOR
             UP TO AN HOUR.
Local storm report, Jul 1, 2:09 PM EDT, 1 hour 26 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBUS, GA
205 PM EDT WED JUL 1 1992

REF STORM ACTIVITY 7/1/92

COUNTY.....  LEE, GEORGIA
SOURCE.....  LEE COUNTY SHERIFF OFFICE AND LEE EMERGENCY MGMT
TIME.......  130 PM EDT/1735Z
LOCATION...  SCATTERED THROUGHOUT COUNTY.
TYPE STORM.  SEVERE THUNDERSTORM
HAIL.......  NONE REPORETED
DAMAGE.....  A FEW LARGE TREES DOWN...POWER LINES DOWN...BRIEF POWER
             OUTAGES...ALL DUE PRIMARILY TO WIND.
Special weather statement, Jul 1, 3:13 PM EDT, 22 minutes before
GAZ002-004-020115-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ATHENS GA
310 PM EDT WED JUL 1 1992

A SEVERE THUNDERSTORM WATCH NUMBER 511 IS IN EFFECT UNTIL 9 PM EDT
FOR THE NORTHEAST GEORGIA COUNTIES...CLARKE...MADISON...ELBERT...
OGLETHORPE...JACKSON...MORGAN...TALIAFERRO...FRANKLIN...OCONEE...
WALTON AND GREENE.

PERSONS IN THESE COUNTIES AND ADJACENT COUNTIES SHOULD BE ALERT FOR
SEVERE WEATHER DURING THE PERIOD OF THE SEVERE THUNDEgRSTORM WATCH AND
TAKE PRECAUTIONARY ACTION IF SEVERE WEATHER IS SIGHTED OF REPORTED.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 1, 4:13 PM EDTSevere Thunderstorm WarningFFCEdgefield, McCormick62 min
Jul 1, 1:33 PM EDTSevere Thunderstorm WarningFFCBibb42 min
Jul 1, 3:26 PM EDTSevere Thunderstorm WarningFFCBurke, Emanuel, Jenkins64 min
Jul 1, 4:06 PM EDTSevere Thunderstorm WarningFFCClarke, Madison, Oglethorpe54 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 1992Severe 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.