Alert archive / Georgia / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 171, NWS Greenville-Spartanburg, SC

July 2, 2002Rabun County, Georgia

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jul 2, 2002, 1:46 PM EDT for Rabun County, Georgia. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 2, 2002, 1:46 PM EDT (17:46 UTC)
Expired: Jul 2, 2002, 2:30 PM EDT
In force: 44 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Whole counties

County Rabun County, GA

The radar

The Greer radar (KGSP), 108 km from the middle of the area, began a volume at 17:47 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.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 5.8 hours before the alert went out and 196 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: 2133 J/kg
Mixed-layer CIN: -51 J/kg
Mixed-layer LCL: 913 m above ground
0-6 km bulk shear: 2 kt
0-1 km storm-relative helicity: -12 m²/s²
0-3 km storm-relative helicity: 29 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.

727 
WUUS52 KGSP 021746
SVRGSP
GAC241-021830-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
146 PM EDT TUE JUL 2 2002

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  RABUN COUNTY IN NORTHEAST GEORGIA

* UNTIL 230 PM EDT

* AT 146 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
  THUNDERSTORM 7 MILES NORTHEAST OF CLAYTON...OR ABOUT 3 MILES
  SOUTHEAST OF SKY VALLEY...MOVING SOUTHWEST AT 15 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  DILLARD AT 155 PM EDT.
  MOUNTAIN CITY AT 200 PM EDT.
  CLAYTON AT 210 PM EDT.
  TIGER AT 215 PM EDT.
  LAKEMONT AT 220 PM EDT.

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

$$
07

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 2, 10:38 AM EDT, 3 hours 8 minutes earlier.

Area forecast discussion, Jul 2, 10:38 AM EDT, 3 hours 8 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1038 AM EDT TUE JUL 2 2002

TDA LOOKS VERY SIMILAR TO YDAY. GSO AND RNK SOUNDINGS SHOW -10 DEG
H5 TEMPS...AND ORIENTATION OF THE H5 COLD TROF IS ONCE AGAIN RIGHT
OVER THE CWA. THETA-E DIFFERENCES ARE NOT QUITE AS HIGH TDA...BUT
STILL ON THE ORDER OF 20 TO 25 DEG. CAPE VALUES WL AGAIN BE AROUND
3000 THIS AFTERNOON. MID LEVEL FLOW IS A LITTLE STRONGER OUT OF THE
NE TDA...AND SFC FLOW DOES NOT HAVE THE SWLY COMPONENT THAT IT DID
YDAY. THIS SHOULD RESULT IN A LITTLE MORE RAPID STORM MOVEMENT THAN
YDAY.

LLVL MOISTURE CONVERGENCE IS WEAKER THAN IT WAS YDAY...BUT THE 12
UTC ETA ONCE AGAIN DEVELOPS GOOD CONVERGENCE OVER THE MTNS AND
FOOTHILLS THROUGH THE AFTERNOON.

THUS...COVERAGE MAY BE A LITTLE LESS THAN YDAY...BUT NOT BY MUCH.
HIGHER POPS W LOOK GOOD...AND DON/T PLAN TO MAKE ANY BIG CHANGES IN
THE ZONES OTHER THAN MINOR TWEAKS IN GFE.

.GSP...
GA...NONE.
NC...NONE.
SC...NONE.

MCAVOY

Nearby

Severe Thunderstorm Warnings in Georgia, 2002 Every severe thunderstorm warning in 2002

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; radar from the NEXRAD Level II archive.