Alert archive / South Carolina / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 274, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 6, 2018, 6:53 PM EDT for Chester County, Union County, South Carolina. It was in force for 52 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 6, 2018, 6:53 PM EDT (22:53 UTC)
- Expired
- Aug 6, 2018, 7:45 PM EDT
- In force
- 52 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Chester County, SC, Union County, SC
The radar
The Greer radar (KGSP), 79 km from the middle of the area, began a volume at 22:56 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, 10.9 hours before the alert went out and 205 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
- 874 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 1356 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 18 m²/s²
- 0-3 km storm-relative helicity
- 33 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 6, 5:32 PM EDT, 1 hour 21 minutes earlier.
Area forecast discussion, Aug 6, 5:32 PM EDT, 1 hour 21 minutes before
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</html>Hazardous weather outlook, Aug 6, 4:40 PM EDT, 2 hours 13 minutes before
Hazardous Weather Outlook National Weather Service Greenville-Spartanburg SC 440 PM EDT Mon Aug 6 2018 NCZ033-048>053-058-059-062>065-501-503-505-507-509-071200- Avery-Madison-Yancey-Mitchell-Swain-Haywood-Buncombe-Graham- Northern Jackson-Macon-Southern Jackson-Transylvania-Henderson- Caldwell Mountains-Burke Mountains-McDowell Mountains- Rutherford Mountains-Polk Mountains- 440 PM EDT Mon Aug 6 2018 This Hazardous Weather Outlook is for western North Carolina. .DAY ONE...Tonight. Scattered to numerous showers and thunderstorms will continue into the evening before diminishing overnight. The primary impacts from the storms will be cloud-to-ground lightning, torrential rain and gusty or potentially damaging winds. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. This period will include periodic bouts of thunderstorms. The coverage will be maximized during the afternoon and evening. Primary impacts include cloud-to-ground lightning, heavy rain and gusty winds. .SPOTTER INFORMATION STATEMENT... Spotters are requested to forward any reports of large hail, damaging winds, or flash flooding to our office. GAZ010-017-018-026-028-029-NCZ035>037-056-057-068>072-082-502-504- 506-508-510-SCZ001>014-019-071200- Rabun-Habersham-Stephens-Franklin-Hart-Elbert-Alexander-Iredell- Davie-Catawba-Rowan-Cleveland-Lincoln-Gaston-Mecklenburg-Cabarrus- Union-Greater Caldwell-Greater Burke-Eastern McDowell- Greater Rutherford-Eastern Polk-Oconee Mountains-Pickens Mountains- Greenville Mountains-Greater Oconee-Greater Pickens- Greater Greenville-Spartanburg-Cherokee-York-Anderson-Abbeville- Laurens-Chester-Greenwood- 440 PM EDT Mon Aug 6 2018 This Hazardous Weather Outlook is for northeast Georgia, piedmont North Carolina, western North Carolina and upstate South Carolina. .DAY ONE...Tonight. Scattered to numerous showers and thunderstorms will continue into the evening before diminishing overnight. The primary impacts from the storms will be cloud-to-ground lightning, torrential rain and gusty or potentially damaging winds. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. This period will include periodic bouts of thunderstorms. The coverage will be maximized during the afternoon and evening. Primary impacts include cloud-to-ground lightning, heavy rain and gusty winds. Additionally, heat index values will range from 95 to 100 degrees during the afternoon hours on Tuesday and Wednesday. .SPOTTER INFORMATION STATEMENT... Spotters are requested to forward any reports of large hail, damaging winds, or flash flooding to our office.
In the hours before
Special weather statement, Aug 6, 6:02 PM EDT, 51 minutes before
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</html>Special weather statement, Aug 6, 6:11 PM EDT, 42 minutes before
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</html>Local storm report, Aug 6, 6:15 PM EDT, 38 minutes before
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</html>Local storm report, Aug 6, 6:21 PM EDT, 32 minutes before
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</html>Local storm report, Aug 6, 6:36 PM EDT, 17 minutes before
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</html>Special weather statement, Aug 6, 6:43 PM EDT, 10 minutes before
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</html>The office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 6, 1:32 PM EDT | Special Weather Statement | GSP | Burke | 28 min |
| Aug 6, 1:34 PM EDT | Special Weather Statement | GSP | Haywood | 56 min |
| Aug 6, 1:40 PM EDT | Special Weather Statement | GSP | Transylvania | 65 min |
| Aug 6, 1:43 PM EDT | Special Weather Statement | GSP | Alexander, Caldwell | 62 min |
| Aug 6, 1:51 PM EDT | Severe Thunderstorm Warning | GSP | Alexander, Caldwell | 54 min |
| Aug 6, 2:46 PM EDT | Special Weather Statement | GSP | Henderson | 29 min |
| Aug 6, 2:50 PM EDT | Special Weather Statement | GSP | Alexander | 25 min |
| Aug 6, 3:31 PM EDT | Severe Thunderstorm Warning | GSP | Jackson | 44 min |
| Aug 6, 3:35 PM EDT | Special Weather Statement | GSP | Iredell | 25 min |
| Aug 6, 3:39 PM EDT | Special Weather Statement | GSP | Catawba | 36 min |
| Aug 6, 3:53 PM EDT | Special Weather Statement | GSP | Polk | 37 min |
| Aug 6, 3:55 PM EDT | Severe Thunderstorm Warning | GSP | Transylvania | 50 min |
| Aug 6, 4:17 PM EDT | Special Weather Statement | GSP | Lincoln | 28 min |
| Aug 6, 4:25 PM EDT | Special Weather Statement | GSP | Mecklenburg | 35 min |
| Aug 6, 4:42 PM EDT | Special Weather Statement | GSP | Mecklenburg | 33 min |
| Aug 6, 5:09 PM EDT | Special Weather Statement | GSP | Cabarrus, Gaston, Mecklenburg | 36 min |
| Aug 6, 5:45 PM EDT | Special Weather Statement | GSP | Cabarrus, Mecklenburg | 30 min |
| Aug 6, 6:02 PM EDT | Special Weather Statement | GSP | Cleveland | 28 min |
| Aug 6, 6:11 PM EDT | Special Weather Statement | GSP | Union | 34 min |
| Aug 6, 6:19 PM EDT | Areal Flood Advisory | GSP | Cabarrus, Gaston, Mecklenburg, Union | 116 min |
| Aug 6, 3:16 PM EDT | Special Weather Statement | GSP | Greenville | 29 min |
| Aug 6, 3:33 PM EDT | Severe Thunderstorm Warning | GSP | Oconee | 42 min |
| Aug 6, 4:26 PM EDT | Special Weather Statement | GSP | Oconee | 34 min |
| Aug 6, 4:51 PM EDT | Severe Thunderstorm Warning | GSP | Anderson, Oconee, Pickens | 39 min |
| Aug 6, 5:02 PM EDT | Severe Thunderstorm Warning | GSP | Greenville, Laurens | 43 min |
| Aug 6, 5:17 PM EDT | Severe Thunderstorm Warning | GSP | Spartanburg, Union | 43 min |
| Aug 6, 5:29 PM EDT | Severe Thunderstorm Warning | GSP | Abbeville, Anderson, Greenville, Oconee | 46 min |
| Aug 6, 6:07 PM EDT | Severe Thunderstorm Warning | GSP | Cherokee, Chester, Union, York | 38 min |
| Aug 6, 6:43 PM EDT | Special Weather Statement | GSP | Chester | 32 min |
Nearby
Severe Thunderstorm Warnings in South Carolina, 2018Every severe thunderstorm warning in 2018
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.