Alert archive / North Carolina / Special Weather Statements in 2021

Special Weather Statement, NWS Greenville-Spartanburg, SC

January 1, 20214 counties in North Carolina; Chester County, York County, South Carolina

NWS Greenville-Spartanburg, SC issued this special weather statement at Jan 1, 2021, 5:30 PM EST for 4 counties in North Carolina; Chester County, York County, South Carolina. It was in force for 60 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 1, 2021, 5:30 PM EST (22:30 UTC)
Expired: Jan 1, 2021, 6:30 PM EST
In force: 60 min
Issued by: NWS Greenville-Spartanburg, SC

Counties Cabarrus County, NC, Gaston County, NC, Mecklenburg County, NC, Rowan County, NC, Chester County, SC, York County, SC

The radar

The Greer radar (KGSP), 129 km from the middle of the area, began a volume at 22:31 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

Charleston AFB, SC (KCHS), launched 12:00Z, 10.5 hours before the alert went out and 257 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 392 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 594 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 106 m²/s²
0-3 km storm-relative helicity: 116 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.8

Open this sounding in Storm Lab

The text

As transmitted.

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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 Jan 1, 4:04 PM EST, 1 hour 26 minutes earlier.

Area forecast discussion, Jan 1, 4:04 PM EST, 1 hour 26 minutes before

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Hazardous weather outlook, Jan 1, 3:35 PM EST, 1 hour 55 minutes before

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In the hours before

Special weather statement, Jan 1, 2:12 PM EST, 3 hours 18 minutes before

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Special weather statement, Jan 1, 3:37 PM EST, 1 hour 53 minutes before

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Special weather statement, Jan 1, 4:09 PM EST, 1 hour 21 minutes before

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Special weather statement, Jan 1, 4:51 PM EST, 39 minutes before

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Special weather statement, Jan 1, 5:02 PM EST, 28 minutes before

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Special weather statement, Jan 1, 5:30 PM EST, 0 minutes before

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The office that day

Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 31, 10:03 PM EST	Dense Fog Advisory	GSP	Alexander, Burke, Cabarrus, Caldwell, Catawba, Cleveland and 10 more	9 hr
Jan 1, 11:56 AM EST	Areal Flood Advisory	GSP	Henderson, Jackson, Transylvania	5 hr
Jan 1, 1:02 PM EST	Special Weather Statement	GSP	Polk	73 min
Jan 1, 3:37 PM EST	Special Weather Statement	GSP	Catawba, Cleveland, Gaston, Lincoln, Polk, Rutherford	53 min
Jan 1, 4:43 PM EST	Areal Flood Advisory	GSP	Transylvania	3 hr
Jan 1, 4:51 PM EST	Special Weather Statement	GSP	Cleveland, Gaston	39 min
Jan 1, 6:24 PM EST	Special Weather Statement	GSP	Union	51 min
Jan 1, 2:12 PM EST	Special Weather Statement	GSP	Abbeville, Anderson, Cherokee, Greenville, Greenwood, Laurens and 1 more	63 min
Jan 1, 4:09 PM EST	Special Weather Statement	GSP	Greenwood, Laurens	51 min
Jan 1, 4:33 PM EST	Areal Flood Advisory	GSP	Greenville, Pickens	3 hr
Jan 1, 5:02 PM EST	Special Weather Statement	GSP	Greenwood	58 min
Jan 1, 5:12 PM EST	Areal Flood Advisory	GSP	Greenwood	3 hr
Jan 1, 4:17 PM EST	Areal Flood Advisory	GSP	Rabun	2 hr

Nearby

Special Weather Statements in North Carolina, 2021 Special Weather Statements in South Carolina, 2021 Every 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.