Alert archive / Georgia / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 330, NWS Atlanta, GA

June 5, 1999Coweta County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jun 5, 1999, 5:06 PM EDT for Coweta County, Georgia. It was in force for 34 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
Jun 5, 1999, 5:06 PM EDT (21:06 UTC)
Expired
Jun 5, 1999, 5:40 PM EDT
In force
34 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Coweta County, GA

The radar

The Atlanta radar (KFFC), 18 km from the middle of the area, began a volume at 21:07 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
Jun 5, 5:10 PM EDTHail 1.75Welcome, GACoweta county 911 center and the public reported dime to golfball 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 nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 9.1 hours before the alert went out and 331 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, Tallahassee Rgnl, FL at 12:00Z on 1999-06-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 92 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, Tallahassee Rgnl, FL at 12:00Z on 1999-06-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 1 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
92 J/kg
Mixed-layer CIN
-230 J/kg
Mixed-layer LCL
1679 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
1 m²/s²
0-3 km storm-relative helicity
12 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.

206 
WUUS1 KATL 052107 RRA
SVRATL
GAC077-052140-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
506 PM EDT SAT JUN 5 1999

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  COWETA COUNTY IN NORTHWESTERN GEORGIA

* UNTIL 540 PM EDT

* AT 505 PM EDT... A SEVERE THUNDERSTORM WAS INDICATED BY DOPPLER
  RADAR  2 MILES EAST OF HANDY... MOVING SOUTHWEST AT 15 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.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 4, 8:01 PM EDTSevere Thunderstorm WarningFFCTwiggs34 min
Jun 4, 8:05 PM EDTSevere Thunderstorm WarningFFCWilkinson20 min
Jun 4, 8:14 PM EDTSevere Thunderstorm WarningFFCBleckley36 min
Jun 4, 8:17 PM EDTSevere Thunderstorm WarningFFCPulaski, Wilcox48 min
Jun 4, 8:49 PM EDTSevere Thunderstorm WarningFFCBleckley, Dodge, Pulaski51 min
Jun 4, 9:04 PM EDTTornado WarningFFCPulaski21 min
Jun 4, 9:11 PM EDTSevere Thunderstorm WarningFFCWilcox34 min
Jun 4, 9:42 PM EDTSevere Thunderstorm WarningFFCWilcox18 min
Jun 5, 4:12 PM EDTSevere Thunderstorm WarningFFCCrisp33 min
Jun 5, 5:21 PM EDTSevere Thunderstorm WarningFFCMurray, Whitfield34 min
Jun 5, 5:23 PM EDTSevere Thunderstorm WarningFFCCarroll, Heard37 min
Jun 5, 6:01 PM EDTSevere Thunderstorm WarningFFCCarroll34 min
Jun 5, 6:09 PM EDTSevere Thunderstorm WarningFFCTroup36 min
Jun 5, 6:29 PM EDTSevere Thunderstorm WarningFFCWhitfield36 min
Jun 5, 6:40 PM EDTSevere Thunderstorm WarningFFCCatoosa35 min
Jun 5, 6:52 PM EDTSevere Thunderstorm WarningFFCChattooga, Walker33 min
Jun 5, 7:14 PM EDTSevere Thunderstorm WarningFFCFloyd36 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.