Alert archive / South Carolina / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 121, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jul 22, 2000, 1:11 PM EDT for Greenville County, South Carolina. It was in force for 49 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
- Jul 22, 2000, 1:11 PM EDT (17:11 UTC)
- Expired
- Jul 22, 2000, 2:00 PM EDT
- In force
- 49 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Whole counties
County Greenville County, SC
The radar
The Greer radar (KGSP), 14 km from the middle of the area, began a volume at 17:12 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 |
|---|---|---|---|
| Jul 22, 1:17 PM EDT | Hail 1 | Mauldin, 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
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 5.2 hours before the alert went out and 259 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
- 185 J/kg
- Mixed-layer CIN
- -145 J/kg
- Mixed-layer LCL
- 1479 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 45 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
622 WUUS52 KGSP 221711 SVRGSP SCC045-221800- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 111 PM EDT SAT JUL 22 2000 THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... GREENVILLE COUNTY IN UPSTATE SOUTH CAROLINA * UNTIL 200 PM EDT * AT 111 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM 7 MILES SOUTHEAST OF GREENVILLE...OR ABOUT OVER MAULDIN...MOVING EAST AT 15 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... FOUNTAIN INN AT 125 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. $$ RWH
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 22, 10:20 AM EDT, 2 hours 51 minutes earlier.
Area forecast discussion, Jul 22, 10:20 AM EDT, 2 hours 51 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 1020 AM EDT SAT JUL 22 2000 WATER VAPOR LOOP AND 12Z UPR AIR CHARTS SHOW A SECOND SHORT WAVE MOVING TOWARD THE AREA TODAY. H85 CHART QUITE MOIST WHILE H5 CHART HAS 45 KT WIND AT GSO...QUITE STRONG FOR THIS TIME OF YEAR. HOWEVER LOWER SPEEDS ADVECTING INTO AREA. BEST DYNAMICS ARE TO OUR NORTH AND EAST. DEW POINTS QUITE HIGH ACROSS THE CWFA ATTM...HOWEVER SHOULD MIX OUT SOME THIS AFTERNOON. THIS LEAVES BEST INSTABILITY TO OUR EAST AND SOUTH. CHC OF TSRA CONTINUES BUT SEVERE CHANCES BEST OUTSIDE OF THE CWFA. CURRENT POPS LOOK GOOD. LOW CLOUDS WILL CONTINUE TO MIX OUT BUT CU WILL REDEVELOP. CURRENT SKY CONDITION AND TEMPS LOOK GOOD AS WELL. .GSP... GA...NONE. NC...NONE. SC...NONE. RWH
In the hours before
Special weather statement, Jul 22, 12:23 PM EDT, 48 minutes before
GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014- 019-222000- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 1223 PM EDT SAT JUL 22 2000 ...SEVERE WEATHER POSSIBLE THIS AFTERNOON AND EVENING ACROSS THE WESTERN CAROLINAS AND EXTREME NORTHEAST GEORGIA... A MOIST...UNSTABLE AIR MASS REMAINS ACROSS THE AREA TODAY AND THUNDERSTORMS HAVE BEGUN TO DEVELOP. AN UPPER LEVEL DISTURBANCE WILL MOVE ACROSS THE AREA TODAY ALSO HELPING TO PRODUCE THUNDERSTORMS. THUNDERSTORMS WILL CONTINUE TO DEVELOP THROUGH THE AFTERNOON AND EVENING AND SOME COULD BECOME SEVERE. THE MAIN THREAT FROM THESE STORMS WILL BE DAMAGING DOWNBURST WINDS IN EXCESS OF 58 MPH. SOME LARGE HAIL IS ALSO POSSIBLE. SPOTTER GROUPS SHOULD BE PREPARED TO ACTIVATE QUICKLY LATE THIS AFTERNOON AND THIS EVENING. DISPATCHERS SHOULD ENSURE COUNTY EMERGENCY MANAGEMENT OFFICIALS ARE AWARE OF THIS INFORMATION. STAY TUNED TO NOAA WEATHER RADIO OR THE MEDIA FOR MORE INFORMATION ON THIS SEVERE WEATHER SITUATION. RWH
The office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 22, 3:25 PM EDT | Severe Thunderstorm Warning | GSP | Spartanburg | 50 min |
| Jul 22, 4:10 PM EDT | Severe Thunderstorm Warning | GSP | Greenville | 50 min |
| Jul 22, 4:46 PM EDT | Severe Thunderstorm Warning | GSP | Laurens | 44 min |
| Jul 22, 6:13 PM EDT | Severe Thunderstorm Warning | GSP | Chester | 47 min |
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.