Alert archive / Georgia / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 441, NWS Atlanta, GA

July 6, 1999Emanuel County, Johnson County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 6, 1999, 4:46 PM EDT for Emanuel County, Johnson County, Georgia. It was in force for 34 min. 2 reports 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
Jul 6, 1999, 4:46 PM EDT (20:46 UTC)
Expired
Jul 6, 1999, 5:20 PM EDT
In force
34 min
Issued by
NWS Atlanta, GA
Area
Whole counties

Counties Emanuel County, GA, Johnson County, GA

The radar

The Robins AFB radar (KJGX), 82 km from the middle of the area, began a volume at 20:49 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
Jul 6, 4:55 PM EDTHail 0.75Swainsboro, GA
Jul 6, 4:55 PM EDTHail 0.75Kite, GAThe Emanuel and Johnson county 911 reported dime size hail on the county line.

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
Jul 6, 2:15 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.8 hours before the alert went out and 205 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 1999-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1066 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 1999-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -20 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
1066 J/kg
Mixed-layer CIN
-60 J/kg
Mixed-layer LCL
1170 m above ground
0-6 km bulk shear
4 kt
0-1 km storm-relative helicity
-20 m²/s²
0-3 km storm-relative helicity
66 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 062047 RRA
SVRATL
GAC107-167-062120-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
446 PM EDT TUE JUL 6 1999

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EMANUEL COUNTY IN EAST CENTRAL GEORGIA
  JOHNSON COUNTY IN EAST CENTRAL GEORGIA

* UNTIL 520 PM EDT

* AT 446 PM EDT... A SEVERE THUNDERSTORM WAS INDICATED BY DOPPLER
  RADAR  IN THE VICINITY OF KITE... MOVING SOUTHWEST AT 5 MPH.

* THIS STORM WILL REMAIN OVER RURAL AREAS.

DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN AND DEADLY LIGHTNING
ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. 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, Jul 6, 11:46 AM EDT, 5 hours before
GAZ038-039-050-051-060>062-072>076-082>086-094>098-105>113-062045-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1146 AM EDT TUE JUL 6 1999

A SLIGHT RISK OF SEVERE THUNDERSTORMS FOR THIS AFTERNOON AND TONIGHT
FOR PORTIONS OF EAST CENTRAL AND SOUTHEAST GEORGIA. IT INCLUDES AN
AREA EAST OF A LINE NEAR ELBERTON IN ELBERT COUNTY TO MACON...
ALBANY TO WAYCROSS AND SAINT SIMMONS ISLAND.

AN UPPER LEVEL DISTURBANCE MOVING WESTWARD THROUGH THE
FLOW... ALONG WITH THE MOIST AND UNSTABLE AIR WILL INCREASE THE
CHANCE FOR THUNDERSTORMS. SOME OF THESE STORMS MIGHT REACH SEVERE
LIMITS BY PRODUCING STRONG GUSTY WINDS AND LARGE HAIL.
Special weather statement, Jul 6, 11:46 AM EDT, 5 hours before
GAZ038-039-050-051-060>062-072>076-082>086-094>098-105>113-062045-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1146 AM EDT TUE JUL 6 1999

A SLIGHT RISK OF SEVERE THUNDERSTORMS FOR THIS AFTERNOON AND TONIGHT
FOR PORTIONS OF EAST CENTRAL AND SOUTHEAST GEORGIA. IT INCLUDES AN
AREA EAST OF A LINE NEAR ELBERTON IN ELBERT COUNTY TO MACON...
ALBANY TO WAYCROSS AND SAINT SIMMONS ISLAND.

AN UPPER LEVEL DISTURBANCE MOVING WESTWARD THROUGH THE
FLOW... ALONG WITH THE MOIST AND UNSTABLE AIR WILL INCREASE THE
CHANCE FOR THUNDERSTORMS. SOME OF THESE STORMS MIGHT REACH SEVERE
LIMITS BY PRODUCING STRONG GUSTY WINDS AND LARGE HAIL.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 3:14 PM EDTSevere Thunderstorm WarningFFCPickens36 min
Jul 6, 3:42 PM EDTSevere Thunderstorm WarningFFCLumpkin33 min
Jul 6, 3:52 PM EDTSevere Thunderstorm WarningFFCGilmer33 min
Jul 6, 3:58 PM EDTSevere Thunderstorm WarningFFCJackson37 min
Jul 6, 4:15 PM EDTSevere Thunderstorm WarningFFCFulton35 min
Jul 6, 4:27 PM EDTSevere Thunderstorm WarningFFCHall33 min
Jul 6, 4:45 PM EDTSevere Thunderstorm WarningFFCCobb, Fulton35 min
Jul 6, 4:52 PM EDTSevere Thunderstorm WarningFFCWarren33 min
Jul 6, 5:14 PM EDTSevere Thunderstorm WarningFFCDeKalb36 min
Jul 6, 5:35 PM EDTFlash Flood WarningFFCFulton115 min
Jul 6, 5:35 PM EDTSevere Thunderstorm WarningFFCEmanuel, Johnson35 min
Jul 6, 5:45 PM EDTSevere Thunderstorm WarningFFCLaurens35 min
Jul 6, 5:49 PM EDTSevere Thunderstorm WarningFFCGreene, Taliaferro31 min
Jul 6, 5:51 PM EDTSevere Thunderstorm WarningFFCHenry34 min
Jul 6, 6:01 PM EDTSevere Thunderstorm WarningFFCChattooga34 min
Jul 6, 6:03 PM EDTSevere Thunderstorm WarningFFCMonroe32 min
Jul 6, 6:19 PM EDTSevere Thunderstorm WarningFFCBaldwin, Hancock36 min
Jul 6, 6:24 PM EDTSevere Thunderstorm WarningFFCFayette36 min
Jul 6, 6:32 PM EDTSevere Thunderstorm WarningFFCJones33 min
Jul 6, 6:41 PM EDTSevere Thunderstorm WarningFFCMonroe34 min
Jul 6, 6:44 PM EDTSevere Thunderstorm WarningFFCTroup31 min
Jul 6, 6:45 PM EDTSevere Thunderstorm WarningFFCChattooga35 min
Jul 6, 6:52 PM EDTSevere Thunderstorm WarningFFCBaldwin33 min
Jul 6, 6:55 PM EDTFlash Flood WarningFFCChattooga3 hr
Jul 6, 6:56 PM EDTSevere Thunderstorm WarningFFCBibb34 min
Jul 6, 7:00 PM EDTSevere Thunderstorm WarningFFCLaurens35 min
Jul 6, 7:08 PM EDTSevere Thunderstorm WarningFFCMeriwether32 min
Jul 6, 7:09 PM EDTSevere Thunderstorm WarningFFCMonroe36 min
Jul 6, 7:20 PM EDTSevere Thunderstorm WarningFFCMacon35 min
Jul 6, 7:24 PM EDTSevere Thunderstorm WarningFFCTelfair36 min
Jul 6, 7:39 PM EDTSevere Thunderstorm WarningFFCHeard31 min
Jul 6, 7:46 PM EDTSevere Thunderstorm WarningFFCDooly34 min
Jul 6, 7:47 PM EDTSevere Thunderstorm WarningFFCUpson33 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.