Alert archive / South Carolina / Special Weather Statements in 2021
Special Weather Statement, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this special weather statement at May 4, 2021, 1:23 PM EDT for Pickens County, South Carolina. It was in force for 37 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- May 4, 2021, 1:23 PM EDT (17:23 UTC)
- Expired
- May 4, 2021, 2:00 PM EDT
- In force
- 37 min
- Issued by
- NWS Greenville-Spartanburg, SC
County Pickens County, SC
The radar
The Greer radar (KGSP), 49 km from the middle of the area, began a volume at 17:27 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, 5.4 hours before the alert went out and 247 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
- 590 J/kg
- Mixed-layer CIN
- -114 J/kg
- Mixed-layer LCL
- 753 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 207 m²/s²
- 0-3 km storm-relative helicity
- 213 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.3
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at May 4, 10:03 AM EDT, 3 hours 20 minutes earlier.
Area forecast discussion, May 4, 10:03 AM EDT, 3 hours 20 minutes before
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</html>Hazardous weather outlook, May 4, 9:48 AM EDT, 3 hours 35 minutes before
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</html>In the hours before
Special weather statement, May 4, 12:36 PM EDT, 47 minutes before
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
1236 PM EDT Tue May 4 2021
SCZ005-006-010-041700-
Greater Pickens SC-Anderson SC-Greater Greenville SC-
1236 PM EDT Tue May 4 2021
...A STRONG THUNDERSTORM WILL IMPACT EAST CENTRAL GREENVILLE...NORTH
CENTRAL ANDERSON AND EAST CENTRAL PICKENS COUNTIES UNTIL 100 PM
EDT...
At 1236 PM EDT, Doppler radar was tracking a strong thunderstorm 4
miles east of Easley, or near Powdersville, moving northeast at 35
mph.
Locations to be impacted include... Greenville, Easley, Greer,
Mauldin, Taylors, Berea, Five Forks and Welcome.
Wind gusts up to 40 mph and pea size hail will be possible in these
areas.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
The combination of gusty winds and saturated soil conditions will
cause scattered trees and power lines to fall. Seek shelter inside an
interior room.
This storm may intensify, so be certain to monitor local radio and tv
stations, as well as local cable tv outlets for additional
information and possible warnings from the National Weather Service.
&&
LAT...LON 3483 8263 3503 8226 3495 8222 3485 8223
3485 8222 3483 8219 3481 8217 3473 8257
TIME...MOT...LOC 1636Z 245DEG 32KT 3481 8252
8Special weather statement, May 4, 1:23 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
123 PM EDT Tue May 4 2021
SCZ001>006-041800-
Pickens Mountains SC-Greater Pickens SC-Greater Oconee SC-
Oconee Mountains SC-Greenville Mountains SC-Greater Greenville SC-
123 PM EDT Tue May 4 2021
...A STRONG THUNDERSTORM WILL IMPACT NORTHWESTERN GREENVILLE...
PICKENS AND EAST CENTRAL OCONEE COUNTIES UNTIL 200 PM EDT...
At 123 PM EDT, Doppler radar was tracking a strong thunderstorm 10
miles northeast of Walhalla, or near Lake Keowee, moving northeast at
40 mph.
Locations to be impacted include...
Pickens, Six Mile, Salem, Lake Keowee, Jocassee Gorges, Keowee
Toxaway State Park, Table Rock State Park, Caesars Head State Park,
Travelers Rest and Slater-Marietta.
Wind gusts up to 45 mph and pea size hail will be possible in these
areas.
LAT...LON 3485 8303 3510 8272 3510 8269 3511 8270
3513 8268 3512 8267 3512 8266 3513 8264
3513 8263 3514 8260 3495 8243 3471 8290
TIME...MOT...LOC 1723Z 232DEG 34KT 3483 8290
WJMThe office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 4, 10:57 AM EDT | Severe Thunderstorm Warning | GSP | Graham, Haywood, Jackson, Macon, Swain | 36 min |
| May 4, 12:09 PM EDT | Areal Flood Advisory | GSP | Graham, Macon, Swain | 3 hr |
| May 4, 3:24 PM EDT | Special Weather Statement | GSP | Cabarrus, Mecklenburg | 36 min |
| May 4, 3:39 PM EDT | Special Weather Statement | GSP | Union | 51 min |
| May 4, 3:53 PM EDT | Severe Thunderstorm Warning | GSP | Union | 52 min |
| May 4, 12:36 PM EDT | Special Weather Statement | GSP | Greenville | 24 min |
| May 4, 2:19 PM EDT | Special Weather Statement | GSP | Spartanburg | 26 min |
| May 4, 2:51 PM EDT | Special Weather Statement | GSP | Union, York | 39 min |
| May 4, 3:05 PM EDT | Special Weather Statement | GSP | Abbeville | 40 min |
| May 4, 3:21 PM EDT | Special Weather Statement | GSP | Laurens, Union | 24 min |
| May 4, 3:44 PM EDT | Severe Thunderstorm Warning | GSP | Abbeville, Greenwood, Laurens | 13 min |
| May 4, 2:24 PM EDT | Special Weather Statement | GSP | Franklin, Hart | 36 min |
| May 4, 2:32 PM EDT | Special Weather Statement | GSP | Hart | 28 min |
Nearby
Special Weather Statements in South Carolina, 2021Every special weather statement in 2021
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.