Alert archive / Georgia / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 225, NWS Atlanta, GA

May 23, 1999Wilkes County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at May 23, 1999, 2:47 PM EDT for Wilkes County, Georgia. It was in force for 33 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
May 23, 1999, 2:47 PM EDT (18:47 UTC)
Expired
May 23, 1999, 3:20 PM EDT
In force
33 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Wilkes County, GA

The radar

The Greer radar (KGSP), 132 km from the middle of the area, began a volume at 18:50 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.

What was reported inside it

TimeReportWhereRemark
May 23, 2:47 PM EDTHail 0.88Tignall, GAThe public reported nickel size hail.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 23, 1:30 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 6.8 hours before the alert went out and 169 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, Peachtre/Fal Fld, GA at 12:00Z on 1999-05-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 299 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, Peachtre/Fal Fld, GA at 12:00Z on 1999-05-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -39 square meters per square second.19395878Sfc1 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
299 J/kg
Mixed-layer CIN
-70 J/kg
Mixed-layer LCL
1083 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
-39 m²/s²
0-3 km storm-relative helicity
-42 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 KATL 231851 COR
SVRATL
GAC317-231920-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
247 PM EDT SUN MAY 23 1999

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WILKES COUNTY IN NORTHEASTERN GEORGIA

* UNTIL 320 PM EDT

* AT 246 PM EDT... A SEVERE THUNDERSTORM WAS INDICATED BY DOPPLER
  RADAR  5 MILES NORTH OF TIGNALL... MOVING EAST AT 30 MPH.

* THIS STORM WILL REMAIN OVER RURAL AREAS.

TO AVOID BEING STRUCK BY LIGHTNING...STAY INDOORS AND AWAY FROM
WINDOWS. DO NOT USE ELECTRICAL APPLIANCES OR TELEPHONES...UNLESS
IN AN EMERGENCY. IF YOU SEE DAMAGE OR LARGE HAIL...CALL THE
NATIONAL WEATHER SERVICE AT 770-486-1133 AT EXTENSION 2 0 4.

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, May 23, 11:20 AM EDT, 3 hours 27 minutes before
GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
091>098-103>113-231900-

NORTH AND CENTRAL GEORGIA THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1120 AM EDT SUN MAY 23 1999

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER NORTH AND
CENTRAL GEORGIA LATE THIS AFTERNOON AND TONIGHT.

A COLD FRONT WILL MOVE INTO THE TENNESSEE VALLEY OVERNIGHT. A WARM
AND MOIST AIRMASS AHEAD OF THIS COLD FRONT...COMBINED WITH AN UPPER
LEVEL STORM SYSTEM...WILL PROVIDE THE POTENTIAL FOR SEVERE
THUNDERSTORMS.

SCATTERED THUNDERSTORMS WILL DEVELOP ACROSS NORTH AND CENTRAL
GEORGIA THIS AFTERNOON...AS DAYTIME HEATING WARMS THE ATMOSPHERE. A
LINE OF STORMS IS LIKELY TO DEVELOP OVER THE TENNESSEE VALLEY LATER
TODAY...AND MOVE INTO NORTHWEST GEORGIA LATE THIS AFTERNOON OR THIS
EVENING. THE LINE WILL CONTINUE TO MOVE ACROSS NORTH AND CENTRAL
GEORGIA OVERNIGHT. THE GREATEST THREAT WITH THESE THUNDERSTORMS WILL
BE DAMAGING WINDS...HOWEVER...LARGE HAIL AND ISOLATED TORNADOES ARE
ALSO POSSIBLE.

SPOTTERS AND EMERGENCY MANAGEMENT OFFICIALS SHOULD REMAIN ALERT FOR
POSSIBLE ACTIVATION THIS AFTERNOON AND TONIGHT.
Special weather statement, May 23, 11:20 AM EDT, 3 hours 27 minutes before
GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
091>098-103>113-231900-

NORTH AND CENTRAL GEORGIA THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1120 AM EDT SUN MAY 23 1999

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER NORTH AND
CENTRAL GEORGIA LATE THIS AFTERNOON AND TONIGHT.

A COLD FRONT WILL MOVE INTO THE TENNESSEE VALLEY OVERNIGHT. A WARM
AND MOIST AIRMASS AHEAD OF THIS COLD FRONT...COMBINED WITH AN UPPER
LEVEL STORM SYSTEM...WILL PROVIDE THE POTENTIAL FOR SEVERE
THUNDERSTORMS.

SCATTERED THUNDERSTORMS WILL DEVELOP ACROSS NORTH AND CENTRAL
GEORGIA THIS AFTERNOON...AS DAYTIME HEATING WARMS THE ATMOSPHERE. A
LINE OF STORMS IS LIKELY TO DEVELOP OVER THE TENNESSEE VALLEY LATER
TODAY...AND MOVE INTO NORTHWEST GEORGIA LATE THIS AFTERNOON OR THIS
EVENING. THE LINE WILL CONTINUE TO MOVE ACROSS NORTH AND CENTRAL
GEORGIA OVERNIGHT. THE GREATEST THREAT WITH THESE THUNDERSTORMS WILL
BE DAMAGING WINDS...HOWEVER...LARGE HAIL AND ISOLATED TORNADOES ARE
ALSO POSSIBLE.

SPOTTERS AND EMERGENCY MANAGEMENT OFFICIALS SHOULD REMAIN ALERT FOR
POSSIBLE ACTIVATION THIS AFTERNOON AND TONIGHT.
Special weather statement, May 23, 2:00 PM EDT, 47 minutes before
GAZ005>009-012>016-019>025-027-030>038-041>050-052>060-066>071-078-
079-231930-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
200 PM EDT SUN MAY 23 1999

...STRONG THUNDERSTORMS DEVELOPING ACROSS NORTH AND CENTRAL
GEORGIA...

SCATTERED STRONG THUNDERSTORMS CONTINUE DEVELOPING ACROSS NORTH AND
CENTRAL GEORGIA THIS AFTERNOON. THESE STORMS WILL PRODUCE VERY HEAVY
RAIN...FREQUENT LIGHTNING...WIND GUSTS UP TO 40 MILES AN HOUR AND
SOME HAIL. THE STRONGER STORMS WILL MOVE FROM NEAR NEWNAN...
FAYETTEVILLE...JONESBORO...CONYERS AND COVINGTON TO NEAR MONROE...
MADISON...MONTICELLO...WATKINSVILLE AND ATHENS THROUGH 3:30 PM.

MOVE INDOORS TO AVOID DANGEROUS WEATHER CONDITIONS. DEADLY
LIGHTNING...STRONG WINDS AND HAIL MAY ACCOMPANY THE STRONGER
STORMS.
Special weather statement, May 23, 2:00 PM EDT, 47 minutes before
GAZ005>009-012>016-019>025-027-030>038-041>050-052>060-066>071-078-
079-231930-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
200 PM EDT SUN MAY 23 1999

...STRONG THUNDERSTORMS DEVELOPING ACROSS NORTH AND CENTRAL
GEORGIA...

SCATTERED STRONG THUNDERSTORMS CONTINUE DEVELOPING ACROSS NORTH AND
CENTRAL GEORGIA THIS AFTERNOON. THESE STORMS WILL PRODUCE VERY HEAVY
RAIN...FREQUENT LIGHTNING...WIND GUSTS UP TO 40 MILES AN HOUR AND
SOME HAIL. THE STRONGER STORMS WILL MOVE FROM NEAR NEWNAN...
FAYETTEVILLE...JONESBORO...CONYERS AND COVINGTON TO NEAR MONROE...
MADISON...MONTICELLO...WATKINSVILLE AND ATHENS THROUGH 3:30 PM.

MOVE INDOORS TO AVOID DANGEROUS WEATHER CONDITIONS. DEADLY
LIGHTNING...STRONG WINDS AND HAIL MAY ACCOMPANY THE STRONGER
STORMS.

The office that day

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

IssuedProductOfficeCountiesLasted
May 22, 10:29 PM EDTSevere Thunderstorm WarningFFCEmanuel, Treutlen36 min
May 23, 1:28 PM EDTSevere Thunderstorm WarningFFCHenry, Rockdale32 min
May 23, 2:10 PM EDTSevere Thunderstorm WarningFFCHenry35 min
May 23, 2:12 PM EDTSevere Thunderstorm WarningFFCCoweta, Fayette33 min
May 23, 2:30 PM EDTSevere Thunderstorm WarningFFCNewton35 min
May 23, 3:40 PM EDTSevere Thunderstorm WarningFFCGreene35 min
May 23, 5:21 PM EDTSevere Thunderstorm WarningFFCCoweta, Fulton34 min
May 23, 5:35 PM EDTSevere Thunderstorm WarningFFCCobb, Paulding50 min
May 23, 5:57 PM EDTSevere Thunderstorm WarningFFCFulton33 min
May 23, 6:21 PM EDTSevere Thunderstorm WarningFFCDeKalb34 min
May 23, 6:24 PM EDTSevere Thunderstorm WarningFFCPike, Spalding36 min
May 23, 6:31 PM EDTSevere Thunderstorm WarningFFCHenry, Rockdale34 min
May 23, 6:41 PM EDTSevere Thunderstorm WarningFFCBarrow, Clarke, Oconee34 min
May 23, 6:56 PM EDTSevere Thunderstorm WarningFFCButts, Jasper, Newton34 min
May 23, 7:09 PM EDTSevere Thunderstorm WarningFFCGilmer, Gordon, Murray, Pickens46 min
May 23, 7:09 PM EDTSevere Thunderstorm WarningFFCDawson46 min
May 23, 7:30 PM EDTSevere Thunderstorm WarningFFCMorgan50 min

Nearby

Severe Thunderstorm Warnings in Georgia, 1999Every severe thunderstorm warning in 1999

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.