Alert archive / South Carolina / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 108, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jul 1, 2000, 2:44 PM EDT for York County, South Carolina. It was in force for 31 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 1, 2000, 2:44 PM EDT (18:44 UTC)
- Expired
- Jul 1, 2000, 3:15 PM EDT
- In force
- 31 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Whole counties
County York County, SC
The radar
The Greer radar (KGSP), 95 km from the middle of the area, began a volume at 18:48 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
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 6.7 hours before the alert went out and 169 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
- 3 J/kg
- Mixed-layer CIN
- -73 J/kg
- Mixed-layer LCL
- 1577 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 20 m²/s²
- 0-3 km storm-relative helicity
- 3 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
714 WUUS52 KGSP 011847 SVRGSP SCC091-011915- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 244 PM EDT SAT JUL 1 2000 THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHEASTERN YORK COUNTY IN UPSTATE SOUTH CAROLINA * UNTIL 315 PM EDT * AT 244 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM WITH LARGE HAIL AND DAMAGING WINDS OVER ROCK HILL... MOVING SOUTHEAST AT 10 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... CATAWBA AT 315 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. $$ MCAVOY
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 1, 1:49 PM EDT, 55 minutes earlier.
Area forecast discussion, Jul 1, 1:49 PM EDT, 55 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 149 PM EDT SAT JUL 1 2000 CONVECTION HAS BEGUN WITHIN THE PAST HOUR...ISOLATED AT THE MOMENT. REPORT OF MARBLE-SIZED HAIL WITH THUNDERSTORM IN WESTERN LAURENS COUNTY. WILL TAKE A LOOK AT TRENDS BEFORE ISSUANCE TIME...BUT WILL PROBABLY INCLUDE A THIS EVENING PERIOD TO ACCOUNT FOR ANY LINGERING ACTIVITY. SHORTWAVE HELPING SPUR ON THIS CONVECTION APPEARS...ON WATER VAPOR IMAGERY...TO BE IN THE VICINITY OF OUR CWFA NOW. MODELS TAKE FEATURE ALONG A PATH TANGENT TO THE CONFINES OF OUR CWFA BOUNDARY IN NORTH CAROLINA. SURFACE DEWPOINTS STILL RATHER LOW...50S TO LOWER 60S. IN THE WAKE OF THE SHORTWAVE...SUBSIDENCE SHOULD AID DRYING OUT OF THE REGION LATE THIS EVENING. UPPER RIDGE BUILDS OVER CWFA THROUGH MONDAY...WITH RISING HEIGHTS AND TEMPERATURES. MODELS ALSO DEPICT A WEAK INVERTED TROF SETTING UP WEST OF CWFA. WOULD EXPECT A SLOW INCREASE IN SURFACE DEWPOINTS THROUGH MONDAY...AND COULD NOT RULE OUT ISOLATED SHOWER OR THUNDERSTORM JUST DUE TO DAYTIME HEATING...BUT WILL LEAVE OUT OF FORECAST FOR NOW. WEAK SHORTWAVES TRY TO OVERRIDE RIDGE...AND INDEED...THE ETA DOES BRING A SWATH OF DIFFERENTIAL POSITIVE VORTICITY ADVECTION ACROSS AREA SUNDAY MORNING. WILL LEAVE SUNDAY FORECAST DRY AT THIS STAGE...HOWEVER. WOULD THINK MOISTURE RETURN WOULD BE GREAT ENOUGH BY MONDAY FOR SOME SCATTERED CONVECTION...BUT CONTINUED WARMING TEMPERATURES ALOFT MAY MAKE IT DIFFICULT FOR ANYTHING BUT ISOLATED CONVECTION TO OCCUR. WILL LEAVE MONDAY DRY. THANKS TO RNK FOR THE COORDINATION CALL. TEMPERATURE FORECAST WILL REFLECT A GRADUAL WARMUP. AVL BB 058/083 061/085 062 44120z CLT BB 063/089 065/090 067 44110 GSP BB 064/090 067/092 068 44110 .GSP...NONE. BURRUS
In the hours before
Special weather statement, Jul 1, 10:34 AM EDT, 4 hours 10 minutes before
GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014- 019-012224- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 1034 AM EDT SAT JUL 1 2000 ...SLIGHT CHANCE OF SEVERE THUNDERSTORMS THIS AFTERNOON AND EVENING...IN THE WESTERN CAROLINAS AND NORTHEAST GEORGIA... AN APPROACHING UPPER LEVEL DISTURBANCE...ADVANCING ATLANTIC MOISTURE...AND DAYTIME HEATING...WILL COMBINE TO PRODUCE SCATTERED THUNDERSTORMS THIS AFTERNOON AND EARLY THIS EVENING. THE STORM PREDICTION CENTER HAS UPGRADED UPSTATE SOUTH CAROLINA...AND NORTHEAST GEORGIA...TO A SLIGHT RISK THAT SOME THUNDERSTORMS COULD BECOME SEVERE. ISOLATED SEVERE THUNDERSTORMS COULD ALSO BE OBSERVED IN WESTERN NORTH CAROLINA...BUT MOSTLY EAST OF INTERSTATE 77. THE MAIN SEVERE WEATHER THREATS TODAY ARE HAIL GREATER THAN ONE INCH IN DIAMETER...AND THUNDERSTORM WINDS OF 60 MPH OR HIGHER. SKYWARN AND AMATEUR RADIO NETWORK ACTIVATION MAY BECOME NECESSARY LATE THIS AFTERNOON. STAY TUNED TO NOAA WEATHER RADIO...LOCAL RADIO AND TELEVISION...OR CABLE TELEVISION FOR THE LATEST WEATHER INFORMATION. BURRUS
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.