Alert archive / South Carolina / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 249, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 18, 2002, 7:09 PM EDT for Abbeville County, South Carolina. It was in force for 36 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
- Aug 18, 2002, 7:09 PM EDT (23:09 UTC)
- Expired
- Aug 18, 2002, 7:45 PM EDT
- In force
- 36 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Whole counties
County Abbeville County, SC
The radar
The Greer radar (KGSP), 77 km from the middle of the area, began a volume at 23:11 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, 11.2 hours before the alert went out and 211 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.
- Mixed-layer CAPE
- 565 J/kg
- Mixed-layer CIN
- -69 J/kg
- Mixed-layer LCL
- 1158 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- -21 m²/s²
- 0-3 km storm-relative helicity
- -24 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
335 WUUS52 KGSP 182309 SVRGSP SCC001-182345- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 707 PM EDT SUN AUG 18 2002 THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... ABBEVILLE COUNTY IN UPSTATE SOUTH CAROLINA * UNTIL 745 PM EDT * AT 707 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM 8 MILES NORTHWEST OF ABBEVILLE...OR ABOUT 5 MILES SOUTHEAST OF ANTREVILLE...MOVING EAST AT 10 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... DUE WEST AT 725 PM EDT. ABBEVILLE AT 730 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 Aug 18, 3:10 PM EDT, 3 hours 59 minutes earlier.
Area forecast discussion, Aug 18, 3:10 PM EDT, 3 hours 59 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 310 PM EDT SUN AUG 18 2002 AT 230 PM CONVECTIVE ACTIVITY WAS OVER THE CENTRAL AND SOUTHERN MOUNTAINS OF NORTH CAROLINA...WILL EXPECT COVERAGE TO INCREASE AND SPREAD INTO THE REST OF THE CWA THE REST OF THIS AFTERNOON AND EVENING. ATMOS IS A LITTLE DRIER THAN DAYS PAST AND WITH LITTLE UPPER SUPPORT WILL END PRECIP MENTION AT MIDNIGHT. TOMORROW...H5 S/W MOVES OVER THE MTNS AND AS A RESPONSE LEE TROF DEEPENS TO 1011 MB. THE RESULT WILL AGAIN BE SCATTERED SH/TS DEVELOPING IN THE AFTERNOON AND DISSIPATING BY MIDNIGHT. DEEP LEVEL DRY AIR BEGINS TO ENTER THE FA FROM THE NW BUT WILL MAINTAIN CURRENT 30 POPS AS SURFACE MOISTURE CONVERGENCE STILL LOOKS DECENT. WEDNESDAY...H5 RIDGE BUILDS OVER THE CAROLINAS AND DRY AIR MOVES FURTHER SOUTH AS SURFACE HIGH SLIDES OVER NEW ENGLAND...WILL KEEP SILENT 20 POPS. NO BIG CHANGES MADE WITH TEMPERATURES FIELDS...WILL TWEAK BASED ON LATEST MOS GUIDANCE. DAYS 4-7...BY WED...HIGH PRESSURE ALOFT WILL BUILD INTO THE REGION. GLOBAL MODEL SHOWS WARM TEMPS ALOFT AND A FAIRLY DRY AIRMASS. WL BE HARD PRESSED TO SEE ANYTHING OTHER THAN ISLD TSRA IN THE HIGHER ELEVATIONS...AND WL LEAVE FORECAST DRY. MORE OF THE SAME AN THU. LOOKS MOSTLY SUNNY AND HOT W/INVERSION LIMITING CONVECTION. BY FRIDAY THE FLOW BECOMES A LITTLE MORE SWLY...AND PRESUMABLY MORE MOIST. WL KEEP MTN POPS. FRONT FOR NEXT WEEKEND LOOKS SLOWER ON THE LATEST GLOBAL...AND HPC PREFERRED THE EVEN SLOWER ENSEMBLE SOLUTION. THIS MEANS POPS BOTH DAYS AND WARMER THAN THE PREVIOUS FORECAST...ESPECIALLY FOR SAT. FCSTID = 16 GSP 69 92 70 91 / 30 30 30 30 AND 70 93 71 90 / 30 30 30 30 CLT 70 94 71 90 / 30 30 30 30 HKY 69 91 70 89 / 30 30 30 30 AVL 64 87 66 85 / 30 40 30 30 .GSP... GA...NONE. NC...NONE. SC...NONE. NED
Nearby
Severe Thunderstorm Warnings in South Carolina, 2002Every 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.