Alert archive / South Carolina / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 12, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Apr 3, 2000, 4:46 AM EDT for Oconee County, Pickens County, South Carolina. It was in force for 29 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
- Apr 3, 2000, 4:46 AM EDT (08:46 UTC)
- Expired
- Apr 3, 2000, 5:15 AM EDT
- In force
- 29 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Whole counties
Counties Oconee County, SC, Pickens County, SC
The radar
The Greer radar (KGSP), 62 km from the middle of the area, began a volume at 08:45 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 3, 4:55 AM EDT | Tornado F1 | Clemson, SC |
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
Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 8.8 hours before the alert went out and 305 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 606 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 296 m²/s²
- 0-3 km storm-relative helicity
- 427 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS52 KGSP 030848 SVRGSP SCC073-077-030915- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 446 AM EDT MON APR 3 2000 THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EASTERN OCONEE COUNTY IN UPSTATE SOUTH CAROLINA PICKENS COUNTY IN UPSTATE SOUTH CAROLINA * UNTIL 515 AM EDT * AT 446 AM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM WITH DAMAGING WINDS 4 MILES SOUTHEAST OF WALHALLA...OR ABOUT 4 MILES NORTHWEST OF SENECA...MOVING EAST AT 45 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... SENECA AT 450 AM EDT KEOWEE AT 453 AM EDT CENTRAL AT 455 AM EDT PICKENS AT 505 AM EDT EASLEY AT 510 AM EDT DACUSVILLE AT 515 AM 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 SEVERE THUNDERSTORM. $$ DELGADO
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 Apr 3, 2:22 AM EDT, 2 hours 24 minutes earlier.
Area forecast discussion, Apr 3, 2:22 AM EDT, 2 hours 24 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 222 AM EDT MON APR 3 2000 CURRENT IMPULSE LEAVES AREA THIS MORNING BUT ANOTHER ARRIVES THIS EVENING. MAIN SHORTWAVE ARRIVING TUE. EASTERN EDGE OF MAIN RH BAND SHIFTS FROM FOOTHILLS/PIEDMONT INTO VA THIS MORNING. MOUNTAINS IN HIGH RH THROUGH TODAY. FRONT AND ASSOCIATED MOISTURE MOVE INTO AREA THIS EVENING...REACHING BLUE RIDGE BY 06Z...AND RDU-CAE LINE BY 12Z. MEAGER DRYING BEHIND FRONT EVIDENT OVER GA/SC PORTION OF AREA TUE AFTERNOON. ETA/NGM MAINTAIN LIFT BEHIND FRONT AND ENOUGH LOW LEVEL MOISTURE AND INSTABILITY FOR SCATTERED SHOWERS TUESDAY. MEANWHILE COLD ADVECTION BRINGS SUB-CRITICAL THICKNESS TO NC MOUNTAINS WITH MOISTURE REMAINING AND UPSLOPE COMPONENT INCREASING...SUPPORTING POPS NC MOUNTAINS WITH A CHANGEOVER TO SNOW. EXPECT RELATIVE LULL IN PRECIPITATION THIS MORNING AS CURRENT ACTIVITY SHIFTS N. MODEL TIME SECTIONS SHOW MID LEVELS DRYING TODAY...AND LOW LEVEL OMEGA BY LATE AFTERNOON. EXPECT ACTIVITY TO BE MORE CONVECTIVE IN NATURE AS AREA RAPIDLY DESTABILIZES. LOW LEVEL CONVERGENCE AND UPPER DIVERGENCE INCREASE OVER E TN BY THIS EVENING AHEAD OF ARRIVING FRONT. DEEP MOISTURE TO RETURN BY EARLY EVENING AS BOUNDARY REACHES E TN WITH PRECIPITABLE WATER NEAR 1.5 INCHES. BY 06Z UPPER DIVERGENCE SHIFTS TO CHESAPEAKE BAY WHILE BEST LOW LEVEL CONVERGENCE MOVES INTO SHENANDOAH AREA. THREAT OF SEVERE AND FLASH FLOODING BEST THIS AFTERNOON AND EVENING. MOUNTAINS MOST PRONE TO FLOOD THEAT AS AREA HAS RECEIVED MOST RAINFALL AND WILL BEAR THE BRUNT OF HEAVY RAINFALL BEFORE SUPPORTIVE PARAMETERS SHIFT NE INTO VA. WILL ISSUE FLASH FLOOD WATCH FOR ALL MOUNTAINS FOR TODAY AND THIS EVENING...AND SEVERE WEATHER OUTLOOK FOR ENTIRE AREA FOCUSED ON THIS AFTERNOON AND EVENING. WILL USE COMPROMISE ON GUIDANCE TEMPS/POPS. THANKS MRX FOR COORDINATION! AVL TO 067/051 055/032 058 07895F <<<896 N NC MOUNTAINS CLT TW 073/057 064/035 064 07685 GSP TE 072/056 063/036 066 07784 .GSP...FLASH FLOOD WATCH GA/NC/SC MOUNTAINS TODAY AND THIS EVENING. JAT
Nearby
Severe Thunderstorm Warnings in South Carolina, 2000Every severe thunderstorm warning in 2000
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.