Alert archive / Georgia / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 189, NWS Atlanta, GA

July 27, 1993DeKalb County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 27, 1993, 8:53 PM EDT for DeKalb County, Georgia. It was in force for 37 min.

The area

The counties it named.

The facts

Issued
Jul 27, 1993, 8:53 PM EDT (00:53 UTC)
Expired
Jul 27, 1993, 9:30 PM EDT
In force
37 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County DeKalb County, GA

The nearest sounding before it

Centreville/Bibb, AL (KCKL), launched 00:00Z, 0.9 hours before the alert went out and 293 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, Centreville/Bibb, AL at 00:00Z on 1993-07-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 959 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Centreville/Bibb, AL at 00:00Z on 1993-07-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 67 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
959 J/kg
Mixed-layer CIN
-79 J/kg
Mixed-layer LCL
1199 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
67 m²/s²
0-3 km storm-relative helicity
143 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.9

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 27, 5:17 PM EDT, 3 hours 36 minutes before
GAZ001>003-005-272230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ATLANTA GA
515 PM EDT TUE JUL 27 1993

...STRONG THUNDERSTORM WIDELY SCATTERED ACROSS NORTHWEST GEORGIA...

AT 510 PM EDT...NATIONAL WEATHER SERVICE RADAR SHOWED THUNDERSTORMS
HAD DEVELOPED IN PARTS OF NORTHWEST GEORGIA. AT THAT TIME THEY WERE
WIDELY SCATTERED AND EXTENDED FROM THE ROME AND CHATSWORTH AREAS SOUTH
TO NEAR CARROLLTON AND THEN SOUTHEAST ACROSS SOUTHERN PORTIONS OF
THE GREATER ATLANTA METROPOLITAN AREA. STORMS WERE DRIFTING TOWARD
THE SOUTH.

DANGEROUS LIGHTNING...STRONG GUSTY WINDS...AND VERY HEAVY RAIN ARE
ALL LIKELY WITH THE STRONGEST STORMS.

SINCE ADDITIONAL THUNDERSTORMS COULD DEVELOP ANYWHERE INZ NORTHWEST
GEORGIA THIS EVENING...PEOPLE SHOULD BE ALERT AND BE PREPARED TO SEEK
SHELTER IN A SAFE PLACE QUICKLY.
Special weather statement, Jul 27, 5:35 PM EDT, 3 hours 18 minutes before
GAZ001>010-ALZ003-007-011-012-NCZ007-010>013-SCZ001>004-006-
TNZ001>003-005-272230-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE ATHENS GA
530 PM EDT TUE JUL 27 1993

A CLUSTER OF STRONG THUNDERSTORMS WAS LOCATED OVER EXTREME
NORTHEAST GEORGIA AND THE WESTERN TIP OF SOUTH CAROLINA.
ANOTHER STRONG THUNDERSTORM WAS INDICATED OVER BANKS COUNTY
OF NORTHEAST GEORGIA. THESE STORMS WERE MOVING TO THE SOUTH
AT 10 MPH ACCOMPANIED BY VERY HEAVY RAINFALL...STRONG GUSTY
WINDS...FREQUENT LIGHTNING AND SOME SMALL HAIL.

ELSEWHERE...THUNDERSTORMS WERE SCATTERED ACROSS WESTERN AND
CENTRAL GEORGIA...EASTERN ALABAMA AND SOUTHEAST TENNESSEE.

THUNDERSTORMS WERE MOVING TO THE SOUTH AT0 10 MPH.
Special weather statement, Jul 27, 6:32 PM EDT, 2 hours 21 minutes before
GAZ001>010-ALZ003-007-011-012-NCZ007-010>013-SCZ001>004-006-
TNZ001>003-005-272330-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE ATHENS GA
630 PM EDT TUE JUL 27 1993

STRONG THUNDERSTORMS WERE INDICATED OVER NORTHEAST GEORGIA
FROM NORTHWEST OF ATHENS...NEAR JEFFERSON AND EXTEND TO
NEAR DAHLONEGA. OTHER STRONG THUNDERSTORMS WERE NOTED NEAR
CLAYTON IN EXTREME NORTHEAST GEORGIA. VERY HEAVY RAINFALL...
STRONG GUSTY WINDS...FREQUENT LIGHTNING AND SOME SMALL HAIL
ARE LIKELY IN THESE AREAS.

ELSEWHERE...SHOWERS AND THUNDERSTORMS WERE SCATTERED OVER CENTRAL
GEORGIA...EASTERN ALABAMA...SOUTHEAST TENNESSEE AND WESTERN SOUTH
CAROLINA.

THUNDERSTORMS WERE MOVING TO THE SOUTH AT 10 MPH.
Special weather statement, Jul 27, 7:30 PM EDT, 1 hour 23 minutes before
GAZ001>010-ALZ003-007-011-012-NCZ007-010>013-SCZ001>004-006-
TNZ001>003-005-280030-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE ATHENS GA
730 PM EDT TUE JUL 27 1993

A BAND OF STRONG THUNDERSTORMS EXTENDS ACROSS NORTHEAST GEORGIA
FROM THE ATHENS AREA TO WINDER AND DAHLONEGA. THESE STORMS ARE
CAPABLE OF PRODUCING HEAVY RAIN...STRONG GUSTY WINDS...FREQUENT
LIGHTNING AND POSSIBLY SOME SMALL HAIL.

ELSEWHERE...STRONG THUNDERSlTORMS WERE SCATTERED OVER WESTERN
AND CENTRAL GEORGIA.

THUNDERSTORMS WERE MOVING TO THE SOUTH AT 10 MPH.
Special weather statement, Jul 27, 7:32 PM EDT, 1 hour 21 minutes before
GAZ005-006-280130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBUS GA
733 PM EDT TUE JUL 27 1993

...STRONG THUNDERSTORMS MOVING INTO WEST CENTRAL GEORGIA...

AT 725 PM EDT COLUMBUS WEATHER RADAR INDICATED AN AREA OF STRONG
THUNDERSTORMS FROM MACON TO SOUTH OF MONTEZUMA. ONE OF THE STRONGEST
STORMS WAS NEAR REYNOLDS AND NORTH AND SOUTH OF MONTEZUMA. THIS AREA OF
THUNDERSTORMS WAS MOVING SOUTHWEST AT 10 MPH.

PERSONS IN MACON AND SUMTER COUNTIES OF GEORGIA SHOULD BE ON THE LOOKOUT
FOR THESE STORMS AND BE READY TO SEEK QUICK SHELTER WHEN THEY COME NEAR.
FREQUENT DANGEROUS LIGHTNING..VERY HEAVY RAIN..STRONG GUSTY WIND AND
POSSIBLY SOME HAIL WILL ACCOMPANY THESE STORMS. LISTEN zTO NOAA WEATHER
RADIO OR OTHER NEWS MEDIA FOR LATER STATEMENTS OR POSSIBLE WARNINGS.
Special weather statement, Jul 27, 7:45 PM EDT, 1 hour 8 minutes before
GAZ003-280055-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ATLANTA GA
745 PM EDT TUE JUL 27 1993

...THUNDERSTORMS IN METROPOLITAN ATLANTA...

AT 740 PM EDT...NATIONAL WEATHER SERVICE RADAR SHOWED THUNDERSTORMS
HAD DEVELOPED IN PARTS OF THE ATLANTA METROPOLITAN AREA. THEY WERE
PRODUCING DEADLY LIGHTNING...STRONG GUSTY WINDS AND LOCALLY HEAVY
DOWNPOURS AS THEY DRIFTED SOUTHWEST ACROSS THE AREA.

PEOPLE IN THE ATLANTA AREA AND NEIGHBORING COUNTIES SHOULD BE
BE ALERT TO THE DANGERS OF LIGHTNING. BE PREPARED TO SEEK SHELTER
IN A SAFE PLACE QUICKLY.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 27, 8:06 PM EDTSevere Thunderstorm WarningFFCDeKalb24 min
Jul 27, 8:21 PM EDTSevere Thunderstorm WarningFFCClayton, Fulton39 min
Jul 27, 8:44 PM EDTSevere Thunderstorm WarningFFCCoweta31 min
Jul 27, 9:01 PM EDTSevere Thunderstorm WarningFFCCoweta, Fayette29 min
Jul 28, 5:18 PM EDTSevere Thunderstorm WarningFFCJasper57 min
Jul 28, 5:32 PM EDTSevere Thunderstorm WarningFFCMonroe58 min
Jul 28, 5:59 PM EDTSevere Thunderstorm WarningFFCBibb61 min
Jul 28, 6:13 PM EDTSevere Thunderstorm WarningFFCCrawford62 min
Jul 28, 6:13 PM EDTSevere Thunderstorm WarningFFCJones62 min
Jul 28, 6:40 PM EDTSevere Thunderstorm WarningFFCButts35 min
Jul 28, 7:06 PM EDTSevere Thunderstorm WarningFFCSpalding24 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.