Alert archive / Georgia / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 218, NWS Atlanta, GA

August 18, 1993Monroe County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Aug 18, 1993, 6:43 PM EDT for Monroe County, Georgia. It was in force for 47 min.

The area

The counties it named.

The facts

Issued
Aug 18, 1993, 6:43 PM EDT (22:43 UTC)
Expired
Aug 18, 1993, 7:30 PM EDT
In force
47 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Monroe County, GA

The nearest sounding before it

Athens Municipal, GA (KAHN), launched 12:00Z, 10.7 hours before the alert went out and 119 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 1993-08-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 668 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 1993-08-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 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
668 J/kg
Mixed-layer CIN
-93 J/kg
Mixed-layer LCL
1262 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
29 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 KMCN 182244 RRA
SVRMCN
GAC207-182330-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MACON GA
643 PM EDT WED AUG 18 1993
 
THE NATIONAL WEATHER SERVICE IN MACON GA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  730 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN CENTRAL GEORGIA
 
   ...MONROE COUNTY
 
AT 640 PM EDT NATIONAL WEATHER SERVICE RADAR AT MACON LOCATED A
SEVERE THUNDERSTORM NEAR FORSYTH IN MONROE COUNTY MOVING SOUTH
AT 15 MPH.
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING 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, Aug 18, 4:46 PM EDT, 1 hour 57 minutes before
GAZ003-GAZ005-182233-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ATLANTA GA
445 PM EDT WED AUG 18 1993

AT 440 PM EDT WEATHER RADAR IN ATLANTA SHOWED WIDELY SCATTERED THUNDER-
STORMS DEVELOPING OVER PARTS OF NORTHWEST GEORGIA. SOME HAD BECOME
RATHER INTENSE...AND MAY BE CAPABLE OF PRODUCING STRONG GUSTY WINDS AND
SOME HAIL. FREQUENT LIGHTNING IS LIKELY WITH MOST OF THE STORMS.

AT 440 THE STRONGEST STORMS WERE LOCATED WEST AND SOUTHWEST OF ATLANTA.
THEY WERE WIDELY SCATTERED FROM BETWEEN ROCKMART AND TALLAPOOSA SOUTH
TO NEAR NEWNAN AND LA GRANGE.

STORMS WERE MOVING SOUTH AT 10 TO 15 MPH.

ADDITIONAL THUNDERSTORMS MAY ERUPT IN THE LATE AFTERNOON HEAT...SO
PEOPLE IN NORTHWEST GEORGIA SHOULD REMAIN ALERT. BE PREPARED TO
QUICKLY SEEK SHELTER IF STORMS DEVELOP OR MOVE INTO YOUR AREA.
Special weather statement, Aug 18, 4:47 PM EDT, 1 hour 56 minutes before
GAZ001>010-ALZ003-007-011-012-NCZ007-010>013-SCZ001>004-006-
TNZ001>003-005-182140-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE ATHENS GA
440 PM EDT MON AUG 16 1993

SCATTERED THUNDERSTORMS WERE INDICATED OVER THE NORTH TWO THIRDS OF
GEORGIA EXTENDING INTO ADJACENTA AREAS OF EAST ALABAMA...NORTHWEST
SOUTH CAROLINA AND WEST SOUTH CAROLINA SOUTH OF AIKEN.

THE STRONGEST THUNDERSTORM CAPABLE OF PRODUCING THE HEAVIEST RAIN WAS
LOCATED JUST INSIDE THE ALABAMA BORDER NORTHWEST OF LAGRANGE. MOST
OF THE THUNDERSTORMS WERE LOCATED FROM NEAR LAGRANGE EAST TO JUST TO
THE SOUTH OF AUGUSTA. A FEW WERE LOCATED IN NORTHEAST GEORGIA AND
AROUND THE CEDARTOWN AREA.

THE THUNDERSTORRMS AREA CAPABLE OF PRODUCING VERY HEAVY RAINS THAT MAY
CAUSE SOME STREET AND SMALL STREAME FLOODING ALONG WITH GUSTY WINDS...
DANGEROUS LIGHTNING AND SMALL HAIL.
THE THUNDERSTORMS WERE MOVING TO THE SOUTHEAST AT 10 MPH.
Special weather statement, Aug 18, 5:30 PM EDT, 1 hour 13 minutes before
GAZ001>GAZ003-202300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ATLANTA GA
530 PM EDT WED AUG 18 1993

AT 525 PM EDT WEATHER SERVICE RADARS SHOWED WIDELY SCATTERED THUNDER-
STORMS WERE DEVELOPING OVER PARTS OF NORTHERN GEORGIA. THE STRONGEST
THUNDERSTORM WAS OCCURRING OVER THE NORTHWESTERN PORTION OF CHATTOOGA
COUNTY NEAR CLOUDLAND. THESE STORMS WERE MOVING SOUTHEAST AT NEAR 20
MILES AN HOUR.

NORTHWEST GEORGIA'S THUNDERSTORMS HAVE DEVELOPED AHEAD OF A LARGER AREA
OF SHOWERS AND THUNDERSTORMS THAT STRETCHED FROM NORTH CAROLINA WEST
ACROSS TENNESSEE. ANOTHER AREA OF THUNDERSTORMS HAD ALSO DEVELOPED OVER
NORTHERN ALABAMA. MOVEMENT ON ALL OF THESE STORMS WAS TO THE SOUTHEAST.
WITH THE AFTERNOON HEAT AS FUEL...ADDITIONAL THUNDERSTORMS MAY DEVELOP
ACROSS NORTH GEORGIA DURING THE REMAINDER OF DAY AND THIS EVENING.

RESIDENTS OF NORTH GEORGIA SHOULD REMAIN ALERT. BE PREPARED TO QUICKLY
SEEK SHELTER IF STORMS DEVELOP OR MOVE INTO YOUR AREA.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 18, 5:41 PM EDTSevere Thunderstorm WarningFFCMeriwether, Troup34 min

Nearby

Severe Thunderstorm Warnings in Georgia, 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.