Alert archive / South Carolina / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 21, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jan 11, 2020, 9:55 PM EST for Chester County, York County, South Carolina; Mecklenburg County, Union County, North Carolina. It was in force for 65 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
- Jan 11, 2020, 9:55 PM EST (02:55 UTC)
- Expired
- Jan 11, 2020, 11:00 PM EST
- In force
- 65 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Mecklenburg County, NC, Union County, NC, Chester County, SC, York County, SC
The radar
The Columbia radar (KCAE), 116 km from the middle of the area, began a volume at 02:57 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 11, 5:38 PM EST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 2.9 hours before the alert went out and 147 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
- 16 J/kg
- Mixed-layer CIN
- -83 J/kg
- Mixed-layer LCL
- 734 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 426 m²/s²
- 0-3 km storm-relative helicity
- 489 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
353
WUUS52 KGSP 120255
SVRGSP
NCC119-179-SCC023-091-120400-
/O.NEW.KGSP.SV.W.0021.200112T0255Z-200112T0400Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Greenville-Spartanburg SC
955 PM EST Sat Jan 11 2020
The National Weather Service in Greenville-Spartanburg has issued a
* Severe Thunderstorm Warning for...
Southern Mecklenburg County in the Piedmont of North Carolina...
Union County in the Piedmont of North Carolina...
Eastern Chester County in Upstate South Carolina...
Eastern York County in Upstate South Carolina...
* Until 1100 PM EST.
* At 955 PM EST, severe thunderstorms were located along a line
extending from 7 miles south of Gastonia to 12 miles southeast of
Chester, moving east at 55 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and power lines.
* Locations impacted include...
Rock Hill, Monroe, South Charlotte, Southwest Charlotte, Matthews,
Mint Hill, Indian Trail, Weddington, Fort Mill and Stallings.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Conditions are favorable for the development of brief, weak
tornadoes. Seek shelter inside an interior room.
Please report damaging winds, hail, or flooding to the National
Weather Service Greenville-Spartanburg by calling toll free, 1, 800,
2 6 7, 8 1 0 1, or by posting on our Facebook page, or Tweet it using
hashtag nwsgsp. Your message should describe the event and the
specific location where it occurred.
&&
A Tornado Watch remains in effect until midnight EST for the Piedmont
of North Carolina...and Upstate South Carolina.
LAT...LON 3481 8032 3482 8080 3494 8078 3508 8091
3501 8091 3492 8086 3484 8087 3483 8090
3470 8086 3464 8090 3455 8087 3456 8111
3516 8115 3515 8102 3517 8100 3521 8055
3516 8044 3518 8037 3517 8036 3519 8028
TIME...MOT...LOC 0255Z 254DEG 48KT 3515 8112 3457 8108
HAIL...<.75IN
WIND...60MPH
$$
MOORE1 follow-up statement
546
WWUS52 KGSP 120323
SVSGSP
Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
1023 PM EST Sat Jan 11 2020
SCC023-091-120332-
/O.CAN.KGSP.SV.W.0021.000000T0000Z-200112T0400Z/
Chester SC-York SC-
1023 PM EST Sat Jan 11 2020
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN CHESTER AND EASTERN
YORK COUNTIES IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area, therefore the warning has been cancelled.
A Tornado Watch remains in effect until midnight EST for the Piedmont
of North Carolina.
LAT...LON 3481 8032 3482 8080 3494 8078 3501 8084
3518 8088 3521 8055 3516 8044 3518 8037
3517 8036 3519 8028
TIME...MOT...LOC 0322Z 265DEG 40KT 3519 8065 3503 8063 3485 8065
$$
NCC119-179-120400-
/O.CON.KGSP.SV.W.0021.000000T0000Z-200112T0400Z/
Mecklenburg NC-Union NC-
1023 PM EST Sat Jan 11 2020
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1100 PM EST
FOR SOUTHEASTERN MECKLENBURG AND UNION COUNTIES...
At 1022 PM EST, severe thunderstorms were located along a line
extending from 11 miles east of Uptown Charlotte to 5 miles northwest
of Monroe to 11 miles northeast of Lancaster, moving east at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and power lines.
Locations impacted include...
Monroe, South Charlotte, Matthews, Mint Hill, Indian Trail,
Weddington, Stallings, Unionville, Wesley Chapel and Wingate.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Conditions are favorable for the development of brief, weak
tornadoes. Seek shelter inside an interior room.
Please report damaging winds, hail, or flooding to the National
Weather Service Greenville-Spartanburg by calling toll free, 1, 800,
2 6 7, 8 1 0 1, or by posting on our Facebook page, or Tweet it using
hashtag nwsgsp. Your message should describe the event and the
specific location where it occurred.
&&
A Tornado Watch remains in effect until midnight EST for the Piedmont
of North Carolina.
LAT...LON 3481 8032 3482 8080 3494 8078 3501 8084
3518 8088 3521 8055 3516 8044 3518 8037
3517 8036 3519 8028
TIME...MOT...LOC 0322Z 265DEG 40KT 3519 8065 3503 8063 3485 8065
HAIL...<.75IN
WIND...60MPH
$$
MOOREThe office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 11, 7:13 PM EST | Severe Thunderstorm Warning | GSP | Greenville, Pickens | 62 min |
| Jan 11, 7:39 PM EST | Severe Thunderstorm Warning | GSP | Anderson, Oconee | 51 min |
| Jan 11, 7:54 PM EST | Tornado Warning | GSP | Anderson | 36 min |
| Jan 11, 8:21 PM EST | Severe Thunderstorm Warning | GSP | Abbeville, Greenwood | 39 min |
| Jan 11, 8:29 PM EST | Severe Thunderstorm Warning | GSP | Anderson, Greenville, Laurens, Pickens, Spartanburg | 45 min |
| Jan 11, 8:34 PM EST | Tornado Warning | GSP | Abbeville, Greenwood, Laurens | 26 min |
| Jan 11, 8:56 PM EST | Severe Thunderstorm Warning | GSP | Greenwood, Laurens, Spartanburg, Union | 49 min |
| Jan 11, 8:59 PM EST | Severe Thunderstorm Warning | GSP | Cherokee, Spartanburg, Union | 46 min |
| Jan 11, 9:21 PM EST | Severe Thunderstorm Warning | GSP | Cherokee, Chester, Union, York | 39 min |
| Jan 11, 9:36 PM EST | Tornado Warning | GSP | Chester, Union, York | 24 min |
| Jan 11, 7:02 PM EST | Severe Thunderstorm Warning | GSP | Buncombe, Haywood, Henderson, Transylvania | 43 min |
| Jan 11, 7:19 PM EST | Areal Flood Advisory | GSP | Henderson, Transylvania | 4 hr |
| Jan 11, 7:32 PM EST | Severe Thunderstorm Warning | GSP | Buncombe, Henderson, McDowell, Polk, Rutherford, Yancey | 31 min |
| Jan 11, 7:53 PM EST | Severe Thunderstorm Warning | GSP | Burke, McDowell, Mitchell, Polk, Rutherford, Yancey | 52 min |
| Jan 11, 8:02 PM EST | Severe Thunderstorm Warning | GSP | Avery, Burke, Caldwell | 43 min |
| Jan 11, 8:22 PM EST | Severe Thunderstorm Warning | GSP | Alexander, Burke, Caldwell, Catawba, Cleveland, Lincoln and 2 more | 53 min |
| Jan 11, 8:57 PM EST | Severe Thunderstorm Warning | GSP | Alexander, Catawba, Cleveland, Gaston, Iredell, Lincoln | 48 min |
| Jan 11, 9:36 PM EST | Flash Flood Warning | GSP | McDowell | 3 hr |
| Jan 11, 9:41 PM EST | Severe Thunderstorm Warning | GSP | Cabarrus, Catawba, Davie, Gaston, Iredell, Lincoln and 2 more | 49 min |
| Jan 11, 10:19 PM EST | Severe Thunderstorm Warning | GSP | Cabarrus, Davie, Mecklenburg, Rowan | 41 min |
| Jan 11, 10:31 PM EST | Tornado Warning | GSP | Union | 17 min |
| Jan 11, 10:46 PM EST | River Flood Advisory | GSP | Buncombe, Henderson | 22 hr |
| Jan 11, 11:05 PM EST | River Flood Advisory | GSP | Henderson, Transylvania | 8 hr |
| Jan 11, 11:06 PM EST | Areal Flood Warning | GSP | Henderson, Transylvania | 3 hr |
| Jan 12, 1:03 AM EST | Areal Flood Advisory | GSP | Burke, Caldwell | 4 hr |
| Jan 12, 2:44 AM EST | Areal Flood Advisory | GSP | Transylvania | 6 hr |
| Jan 12, 5:32 AM EST | Areal Flood Advisory | GSP | Burke, Caldwell | 6 hr |
| Jan 12, 6:54 AM EST | River Flood Warning | GSP | Henderson, Transylvania | 50 hr |
Nearby
Severe Thunderstorm Warnings in South Carolina, 2020Severe Thunderstorm Warnings in North 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.