Alert archive / Georgia / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 113, NWS Greenville-Spartanburg, SC

July 24, 1999Elbert County, Georgia

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jul 24, 1999, 5:35 PM EDT for Elbert County, Georgia. It was in force for 65 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 24, 1999, 5:35 PM EDT (21:35 UTC)
Expired: Jul 24, 1999, 6:40 PM EDT
In force: 65 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Whole counties

County Elbert County, GA

What was reported inside it

Time	Report	Where	Remark
Jul 24, 5:45 PM EDT	Thunderstorm Wind 50	Bowman, GA
Jul 24, 6:00 PM EDT	Thunderstorm Wind 65	Elberton, GA

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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 9.6 hours before the alert went out and 175 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1875 J/kg
Mixed-layer CIN: -61 J/kg
Mixed-layer LCL: 1103 m above ground
0-6 km bulk shear: 5 kt
0-1 km storm-relative helicity: 5 m²/s²
0-3 km storm-relative helicity: -17 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.

221 
WUUS1 KGSP 242136 RRA
SVRGSP
GAC105-242240-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
535 PM EDT SAT JUL 24 1999

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

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

* UNTIL 640 PM EDT

* AT 534 PM...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
  THUNDERSTORM 7 MILES SOUTHWEST OF ELBERTON...MOVING EAST AT 15
  MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  ELBERTON AT 605 PM

PEOPLE IN THE PATH OF THIS STORM SHOULD BE ALERT FOR LARGE HAIL AND
DAMAGING WINDS.  FREQUENT LIGHTNING AND LOCALLY HEAVY RAIN CAN OCCUR
WITH ANY THUNDERSTORM.

$$
JAT

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.

NWS Greenville-Spartanburg, SC wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 24, 2:12 PM EDT, 3 hours 23 minutes earlier.

Area forecast discussion, Jul 24, 2:12 PM EDT, 3 hours 23 minutes before

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
212 PM EDT SAT JUL 24 1999

CLOSED LOW TO FORM OVER QUEBEC AND CUTOFF OVER ME NEXT 24 HOURS.
SHORTWAVE SHOWN BY RUC TO REACH MOUNTAINS AT 21Z WILL CROSS AREA
SLOWLY OVERNIGHT. A SECOND...WEAKER SHORTWAVE SHOWN BY ETA TO
REACH N TIER SUN AFTERNOON...MOVING INTO SC SUN EVENING. NGM/AVN
MUCH WEAKER WITH SECOND FEATURE...AND NGM MUCH FASTER...ENDING PVA
EARLY SUN EVENING. MODELS BRING TROUGH OR WEAK FRONT DOWN EASTERN
SEABOARD TONIGHT. THIS FEATURE BECOMES STATIONARY OVER AREA INTO
MON...WITH MOST THICKNESS PACKING N AND E. NGM TROUGH STRONGER AND
OVER SC...ETA TROUGH WEAKER AND OVER NC. AVN COMPROMISES. SURFACE
RIDGE BEHIND BOUNDARY FAR ENOUGH W AND AT LOW ENOUGH LATITUDE THAT
SURFACE FLOW NOT LIKELY TO BE NE...BUT RATHER W-NW. MID/UPPER
LEVELS TO DRY OUT SUN MORNING. DOWNSLOPE COMPONENT TO INHIBIT
CONVECTION SUN. NVA...SUBSIDENCE AND CONTINUED DOWNSLOPE MON TO
WARM TEMPERATURES AS DEW POINTS LOWER. FWC MAX TEMPS VERY HIGH AND
HARD TO BUY...EVEN WITH DOWNSLOPE. WILL COMPROMISE BETWEEN FWC AND
FAN. DEW POINTS DICTATE MINIMUM TEMPERATURES.

UPDATE: RADAR COVERAGE FILLING IN AND STILL HAVE 6-8 HOURS TO GET
BACK EDGE PAST MOUNTAINS. WILL INCREASE POPS TONIGHT TO CATEGORICAL NC
AND LIKELY GA/SC.

AVL 67/91/64/91 +200
CLT 71/96/69/97 +100
GSP 72/97/70/98 6110

.GSP...NONE.

JAT

In the hours before

Special weather statement, Jul 24, 3:42 PM EDT, 1 hour 53 minutes before

GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014-
019-250400-

SEVERE THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
342 PM EDT SAT JUL 24 1999

...SEVERE THUNDERSTORMS POSSIBLE THROUGH THE EVENING HOURS...
STRONG THUNDERSTORMS HAVE DEVELOPED IN ADVANCE OF AN UPPER LEVEL
DISTURBANCE CROSSING THE AREA FROM THE NORTHWEST. SOME OF THESE
THUNDERSTORMS HAVE ALREADY PRODUCED LARGE HAIL...AND THE POTENTIAL
FOR DAMAGING WIND GUSTS ALSO EXISTS.

THUNDERSTORMS WILL BE MOST NUMEROUS ACROSS THE MOUNTAINS AND
FOOTHILLS DURING THE EARLY EVENING...WITH THE ACTIVITY GRADUALLY
SHIFTING EASTWARD AS THE EVENING PROGRESSES. THUNDERSTORMS WILL
GENERALLY TAPER OFF BY 9 PM ACROSS THE MOUNTAINS...WHILE
EASTERN PIEDMONT SECTIONS MAY SEE STORMS LINGER UNTIL MIDNIGHT.

THE WIDESPREAD NATURE OF THE THUNDERSTORMS...ALONG WITH THEIR SLOW
SOUTHEAST MOVEMENT...ALSO CREATES THE POTENTIAL FOR FLASH FLOODING
TO DEVELOP...ESPECIALLY IN THE MOUNTAINS. TORRENTIAL RAIN OF 1 TO 2
INCHES PER HOUR WILL BE COMMON IN THE STRONGEST THUNDERSTORMS...AND
STREAMS AND CREEKS WILL LIKELY RISE RAPIDLY.

SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL ARE REQUESTED TO
CLOSELY MONITOR THE SITUATION AND RELAY ANY REPORTS OF SEVERE
WEATHER OR FLASH FLOODING TO THE NATIONAL WEATHER SERVICE.

HG
HG

Special weather statement, Jul 24, 3:42 PM EDT, 1 hour 53 minutes before

GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014-
019-250400-

SEVERE THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
342 PM EDT SAT JUL 24 1999

...SEVERE THUNDERSTORMS POSSIBLE THROUGH THE EVENING HOURS...
STRONG THUNDERSTORMS HAVE DEVELOPED IN ADVANCE OF AN UPPER LEVEL
DISTURBANCE CROSSING THE AREA FROM THE NORTHWEST. SOME OF THESE
THUNDERSTORMS HAVE ALREADY PRODUCED LARGE HAIL...AND THE POTENTIAL
FOR DAMAGING WIND GUSTS ALSO EXISTS.

THUNDERSTORMS WILL BE MOST NUMEROUS ACROSS THE MOUNTAINS AND
FOOTHILLS DURING THE EARLY EVENING...WITH THE ACTIVITY GRADUALLY
SHIFTING EASTWARD AS THE EVENING PROGRESSES. THUNDERSTORMS WILL
GENERALLY TAPER OFF BY 9 PM ACROSS THE MOUNTAINS...WHILE
EASTERN PIEDMONT SECTIONS MAY SEE STORMS LINGER UNTIL MIDNIGHT.

THE WIDESPREAD NATURE OF THE THUNDERSTORMS...ALONG WITH THEIR SLOW
SOUTHEAST MOVEMENT...ALSO CREATES THE POTENTIAL FOR FLASH FLOODING
TO DEVELOP...ESPECIALLY IN THE MOUNTAINS. TORRENTIAL RAIN OF 1 TO 2
INCHES PER HOUR WILL BE COMMON IN THE STRONGEST THUNDERSTORMS...AND
STREAMS AND CREEKS WILL LIKELY RISE RAPIDLY.

SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL ARE REQUESTED TO
CLOSELY MONITOR THE SITUATION AND RELAY ANY REPORTS OF SEVERE
WEATHER OR FLASH FLOODING TO THE NATIONAL WEATHER SERVICE.

HG
HG

Local storm report, Jul 24, 4:30 PM EDT, 1 hour 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
430 PM EDT SAT JUL 24 1999

TIME (EDT) .....CITY LOCATION....... ST   ...EVENT/REMARKS...
           .....COUNTY LOCATION.....

342 PM     SALISBURY                 NC   WIND DAMAGE
07/24/99   ROWAN                          EOC REPORT. TREE DOWN ON
                                          POWER LINE.

JAT

Local storm report, Jul 24, 4:30 PM EDT, 1 hour 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
430 PM EDT SAT JUL 24 1999

TIME (EDT) .....CITY LOCATION....... ST   ...EVENT/REMARKS...
           .....COUNTY LOCATION.....

342 PM     SALISBURY                 NC   WIND DAMAGE
07/24/99   ROWAN                          EOC REPORT. TREE DOWN ON
                                          POWER LINE.

JAT

Local storm report, Jul 24, 4:34 PM EDT, 1 hour 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
434 PM EDT SAT JUL 24 1999

TIME (EDT) .....CITY LOCATION....... ST   ...EVENT/REMARKS...
           .....COUNTY LOCATION.....

357 PM     2 S SALISBURY             NC   WIND DAMAGE
07/24/99   ROWAN                          EOC REPORT. TREE DOWN ON
                                          POWER LINE.

JAT

Local storm report, Jul 24, 4:34 PM EDT, 1 hour 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
434 PM EDT SAT JUL 24 1999

TIME (EDT) .....CITY LOCATION....... ST   ...EVENT/REMARKS...
           .....COUNTY LOCATION.....

357 PM     2 S SALISBURY             NC   WIND DAMAGE
07/24/99   ROWAN                          EOC REPORT. TREE DOWN ON
                                          POWER LINE.

JAT

Nearby

Severe Thunderstorm Warnings in Georgia, 1999 Every 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.