Alert archive / Georgia / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 31, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Feb 13, 2020, 6:46 AM EST for Oconee County, South Carolina; Habersham County, Rabun County, Stephens County, Georgia. It was in force for 44 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
- Feb 13, 2020, 6:46 AM EST (11:46 UTC)
- Expired
- Feb 13, 2020, 7:30 AM EST
- In force
- 44 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Habersham County, GA, Rabun County, GA, Stephens County, GA, Oconee County, SC
The radar
The Greer radar (KGSP), 103 km from the middle of the area, began a volume at 11:48 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
Nashville Metro, TN (KBNA), launched 00:00Z, 11.8 hours before the alert went out and 337 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
- 548 m above ground
- 0-6 km bulk shear
- 99 kt
- 0-1 km storm-relative helicity
- 775 m²/s²
- 0-3 km storm-relative helicity
- 947 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 12, 10:15 PM EST | Special Weather Statement | GSP | Graham | 45 min |
| Feb 12, 11:03 PM EST | Special Weather Statement | GSP | Avery, Madison, Mitchell, Yancey | 57 min |
| Feb 13, 12:04 AM EST | Special Weather Statement | GSP | Avery, Mitchell | 41 min |
| Feb 13, 2:03 AM EST | Areal Flood Advisory | GSP | Graham, Swain | 11 hr |
| Feb 13, 4:22 AM EST | Areal Flood Advisory | GSP | Gaston, Mecklenburg | 5 days |
| Feb 13, 7:03 AM EST | Special Weather Statement | GSP | Cleveland, Gaston, Lincoln, Rutherford | 42 min |
| Feb 13, 7:28 AM EST | Severe Thunderstorm Warning | GSP | Henderson, Transylvania | 32 min |
| Feb 13, 7:44 AM EST | Special Weather Statement | GSP | Gaston, Lincoln | 31 min |
| Feb 13, 8:01 AM EST | Special Weather Statement | GSP | Polk, Rutherford | 29 min |
| Feb 13, 8:03 AM EST | Areal Flood Advisory | GSP | Haywood, Jackson | 6 hr |
| Feb 13, 8:29 AM EST | Special Weather Statement | GSP | Catawba, Cleveland, Lincoln | 31 min |
| Feb 13, 8:54 AM EST | Special Weather Statement | GSP | Catawba, Cleveland, Gaston, Iredell, Lincoln | 36 min |
| Feb 13, 9:00 AM EST | Areal Flood Advisory | GSP | Macon, Swain | 10 hr |
| Feb 13, 9:13 AM EST | Areal Flood Advisory | GSP | Henderson | 6 hr |
| Feb 13, 9:26 AM EST | Special Weather Statement | GSP | Cabarrus, Mecklenburg, Rowan | 34 min |
| Feb 13, 9:46 AM EST | River Flood Advisory | GSP | Buncombe, Henderson | 50 hr |
| Feb 13, 9:47 AM EST | Severe Thunderstorm Warning | GSP | Cabarrus, Gaston, Mecklenburg, Union | 43 min |
| Feb 13, 9:55 AM EST | River Flood Advisory | GSP | Swain | 11 hr |
| Feb 13, 10:26 AM EST | Special Weather Statement | GSP | Union | 49 min |
| Feb 13, 10:37 AM EST | River Flood Warning | GSP | Henderson, Transylvania | 59 hr |
| Feb 13, 5:45 AM EST | Special Weather Statement | GSP | Pickens | 45 min |
| Feb 13, 7:52 AM EST | Severe Thunderstorm Warning | GSP | Anderson, Oconee, Pickens | 38 min |
| Feb 13, 8:24 AM EST | Severe Thunderstorm Warning | GSP | Abbeville, Anderson, Greenville, Greenwood, Laurens, Spartanburg | 51 min |
| Feb 13, 8:57 AM EST | Special Weather Statement | GSP | Cherokee, Spartanburg | 33 min |
| Feb 13, 9:02 AM EST | Special Weather Statement | GSP | Abbeville, Greenwood, Laurens, Union | 28 min |
| Feb 13, 9:24 AM EST | Special Weather Statement | GSP | Union, York | 36 min |
| Feb 13, 9:28 AM EST | Special Weather Statement | GSP | Greenwood | 32 min |
| Feb 13, 9:58 AM EST | Special Weather Statement | GSP | Greenwood | 32 min |
| Feb 13, 10:10 AM EST | Special Weather Statement | GSP | Chester | 20 min |
| Feb 13, 12:44 PM EST | Areal Flood Advisory | GSP | Greenville, Spartanburg | 12 hr |
| Feb 13, 6:02 AM EST | Areal Flood Advisory | GSP | Habersham, Rabun | 12 hr |
| Feb 13, 6:30 AM EST | Special Weather Statement | GSP | Habersham, Rabun | 30 min |
| Feb 13, 7:19 AM EST | Special Weather Statement | GSP | Franklin, Hart, Stephens | 41 min |
| Feb 13, 8:35 AM EST | Special Weather Statement | GSP | Elbert | 40 min |
Nearby
Severe Thunderstorm Warnings in Georgia, 2020Severe Thunderstorm Warnings in South Carolina, 2020Every severe thunderstorm warning in 2020
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.