Alert archive / Georgia / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 176, NWS Atlanta, GA

July 25, 1993Columbia County, Richmond County, Georgia; Aiken County, Edgefield County, South Carolina

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 25, 1993, 6:44 PM EDT for Columbia County, Richmond County, Georgia; Aiken County, Edgefield County, South Carolina. It was in force for 61 min.

The area

The counties it named.

The facts

Issued
Jul 25, 1993, 6:44 PM EDT (22:44 UTC)
Expired
Jul 25, 1993, 7:45 PM EDT
In force
61 min
Issued by
NWS Atlanta, GA
Area
Whole counties

Counties Columbia County, GA, Richmond County, GA, Aiken County, SC, Edgefield County, SC

The nearest sounding before it

Athens Municipal, GA (KAHN), launched 12:00Z, 10.7 hours before the alert went out and 129 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 1993-07-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2505 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 1993-07-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -13 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
2505 J/kg
Mixed-layer CIN
-38 J/kg
Mixed-layer LCL
751 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
-13 m²/s²
0-3 km storm-relative helicity
-5 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 
WUUS1 KAGS 252244 RRA
SVRAGS
GAC073-245-SCC003-037-252345-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUGUSTA GA
644 PM EDT SUN JUL 25 1993
 
THE NATIONAL WEATHER SERVICE IN AUGUSTA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  745 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN EAST CENTRAL GEORGIA
 
   ...SOUTHERN COLUMBIA COUNTY...RICHMOND COUNTY
 
 
IN WEST CENTRAL SOUTH CAROLINA
 
   ...AIKEN COUNTY...SOUTHERN EDGEFIELD COUNTY
 
WEATHER RADAR AT 640 PM SHOWS A CLUSTER OF THUNDERSTORMS BETWEEN APPLING
GEORGIA AND EDGEFIELD SOUTH CAROLINA MOVING SOUTHEAST AT 10 MPH.
DAMAGING THUNDERSTORM WINDS WERE ASSOCIATED WITH THESE STORMS EARLIER
IN THE AFTERNOON. THESE STORMS SHOULD MOVE INTO THE AUGUSTA - AIKEN
METROPOLITAN AREA IN THE NEXT HOUR.
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.

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 25, 2:40 PM EDT, 4 hours 4 minutes before
GAZ001>010-ALZ003-007-011-012-NCZ007-010>013-SCZ001>004-006-
TNZ001>003-005-DDHHMM-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE ATHENS GA
240 PM EDT SUN JUL 25 1993

.....THUNDERSTORMS BUILDING OVER NORTHEAST GEORGIA AND THE ADJACENT
CAROLINAS.....

THUNDERSTORMS CAPABLE OF PRODUCING HEAVY TO VERY HEAVY RAINFALL...
STRONG GUSTY WINDS...FREQUENT LIGHTNING AND POSSIBLE HAIL ARE
DEVELOPING OVER NORTHEAST GEORGIA AND THE WESTERN CAROLINAS.

AT 230 PM EDT...THE ATHENS RAD INDICATED THUNDERSTORMS...ALONG WITH
A FEW SHOWERS OVER MUCH OF NORTHEAST GEORGIA FROM NEAR ATHENS NORTHWARD.

THUNDERSTORMS WERE ALSO LOCATED OVER MUCH OF WEST NORTH CAROLINA FROM
THE TENNESSEE BORDER EAST TO 30 MILES EAST OF ASHEVILLE.

THUNDERSTORMS WER ALSO LOCATED IN SOUTH CAROLINA FROM NEAR GREENWOOD AND
AND LAKE THURMOND EAST TO THE COLUMBIA AREA.

THE STRONGEST THUNDERSTORMS WITH THE HEAVIEST RAIN WERE LOCATED
NEAR DAHLONEGA GEORGIA...JUST SOUTH OF NEWBERRY SOUTH CAROLINA
AND JUST EAST OF ASHEVILLE NORTH CAROLINA.

PERSONS IN THOSE AREAS SHOULD BE ALERT FOR THREATENING WEATHER AND
GO TO A PLACE OF SAFETY IF THREATENING WEATHER IS SIGHTED.
Special weather statement, Jul 25, 2:44 PM EDT, 4 hours before
GAZ001>010-ALZ003-007-011-012-NCZ007-010>013-SCZ001>004-006-
TNZ001>003-005-DDHHMM-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE ATHENS GA
240 PM EDT SUN JUL 25 1993

.....THUNDERSTORMS BUILDING OVER NORTHEAST GEORGIA AND THE ADJACENT
CAROLINAS.....

THUNDERSTORMS CAPABLE OF PRODUCING HEAVY TO VERY HEAVY RAINFALL...
STRONG GUSTY WINDS...FREQUENT LIGHTNING AND POSSIBLE HAIL ARE
DEVELOPING OVER NORTHEAST GEORGIA AND THE WESTERN CAROLINAS.

AT 230 PM EDT...THE ATHENS RAD INDICATED THUNDERSTORMS...ALONG WITH
A FEW SHOWERS OVER MUCH OF NORTHEAST GEORGIA FROM NEAR ATHENS NORTHWARD.

THUNDERSTORMS WERE ALSO LOCATED OVER MUCH OF WEST NORTH CAROLINA FROM
THE TENNESSEE BORDER EAST TO 30 MILES EAST OF ASHEVILLE.

THUNDERSTORMS WER ALSO LOCATED IN SOUTH CAROLINA FROM NEAR GREENWOOD AND
AND LAKE THURMOND EAST TO THE COLUMBIA AREA.

THE STRONGEST THUNDERSTORMS WITH THE HEAVIEST RAIN WERE LOCATED
NEAR DAHLONEGA GEORGIA...JUST SOUTH OF NEWBERRY SOUTH CAROLINA
AND JUST EAST OF ASHEVILLE NORTH CAROLINA.

PERSONS IN THOSE AREAS SHOULD BE ALERT FOR THREATENING WEATHER AND
GO TO A PLACE OF SAFETY IF THREATENING WEATHER IS SIGHTED.
Special weather statement, Jul 25, 5:30 PM EDT, 1 hour 14 minutes before
GAZ001>003-252330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ATLANTA GA
530 PM EDT SUN JUL 25 1993

       ...WIDELY SCATTERED THUNDERSTORMS NORTH THIRD...

AT 515 PM RADAR INDICATED HEAVY RAINFALL IN A STORM OVER SOUTH GORDON
COUNTY AND EXTREME NORTH CHEROKEE COUNTY. SMALL HAIL WAS INDICATED NEAR
FAIRMOUNT. ALSO INDICATED IN THIS STORM WAS THE POTENTIAL FOR STRONG
GUSTY WINDS.

ELSEWHERE AT THAT TIME..ISOLATED THUNDERSHOWERS WERE DAMPENING PARTS OF
CHATTOOGA COUNTY IN THE EXTREME NORTHWEST. ANOTHER ISOLATED
THUNDERSHOWER WAS OVER POLK COUNTY NEAR CEDARTOWN.

ALL OF THE STORMS SHOWED A MOVEMENT TO THE EAST AT ABOUT 10 MPH.

PERSONS ENGAGED IN OUTDOOR ACTIVITIES SHOULD BE ALERT FOR STORM
DEVELOPMENT IN NORTHWEST GEORGIA. BOATERS SHOULD STAY UP-TO-DATE ON
WEATHER CONDITIONS AND BE READY TO EXIT THE WATER WHEN DARK CLOUDS
APPROACH.

DANGEROUS LIGHTNING..STRONG GUSTY WINDS..BRIEF HEAVY DOWNPOURS..AND
HAIL IS POSSIBLE WITH STORMS DURING THE REMAINDER OF THIS AFTERNOON AND
EARLY EVENING.
Special weather statement, Jul 25, 5:31 PM EDT, 1 hour 13 minutes before
GAZ001>003-252330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ATLANTA GA
530 PM EDT SUN JUL 25 1993

       ...WIDELY SCATTERED THUNDERSTORMS NORTH THIRD...

AT 515 PM RADAR INDICATED HEAVY RAINFALL IN A STORM OVER SOUTH GORDON
COUNTY AND EXTREME NORTH CHEROKEE COUNTY. SMALL HAIL WAS INDICATED NEAR
FAIRMOUNT. ALSO INDICATED IN THIS STORM WAS THE POTENTIAL FOR STRONG
GUSTY WINDS.

ELSEWHERE AT THAT TIME..ISOLATED THUNDERSHOWERS WERE DAMPENING PARTS OF
CHATTOOGA COUNTY IN THE EXTREME NORTHWEST. ANOTHER ISOLATED
THUNDERSHOWER WAS OVER POLK COUNTY NEAR CEDARTOWN.

ALL OF THE STORMS SHOWED A MOVEMENT TO THE EAST AT ABOUT 10 MPH.

PERSONS ENGAGED IN OUTDOOR ACTIVITIES SHOULD BE ALERT FOR STORM
DEVELOPMENT IN NORTHWEST GEORGIA. BOATERS SHOULD STAY UP-TO-DATE ON
WEATHER CONDITIONS AND BE READY TO EXIT THE WATER WHEN DARK CLOUDS
APPROACH.

DANGEROUS LIGHTNING..STRONG GUSTY WINDS..BRIEF HEAVY DOWNPOURS..AND
HAIL IS POSSIBLE WITH STORMS DURING THE REMAINDER OF THIS AFTERNOON AND
EARLY EVENING.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 24, 8:35 PM EDTSevere Thunderstorm WarningFFCForsyth, Gwinnett40 min
Jul 24, 8:40 PM EDTSevere Thunderstorm WarningFFCCobb, Fulton50 min
Jul 25, 5:38 PM EDTSevere Thunderstorm WarningFFCBartow, Cherokee52 min
Jul 25, 6:00 PM EDTSevere Thunderstorm WarningFFCCobb, Fulton45 min

Nearby

Severe Thunderstorm Warnings in Georgia, 1993Severe Thunderstorm Warnings in South Carolina, 1993Every severe thunderstorm warning in 1993

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.