Alert archive / North Carolina / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 73, NWS Greenville-Spartanburg, SC

May 16, 2023Macon County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at May 16, 2023, 8:02 PM EDT for Macon County, North Carolina. It was in force for 43 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: May 16, 2023, 8:02 PM EDT (00:02 UTC)
Expired: May 16, 2023, 8:45 PM EDT
In force: 43 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Macon County, NC

The radar

The Knoxville radar (KMRX), 113 km from the middle of the area, began a volume at 00:05 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 00:00Z, 0.0 hours before the alert went out and 335 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: 771 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 1173 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 105 m²/s²
0-3 km storm-relative helicity: 168 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 2.5

Open this sounding in Storm Lab

The office that day

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

Issued	Product	Office	Counties	Lasted
May 16, 8:11 PM EDT	Severe Thunderstorm Warning	GSP	Buncombe, Haywood, Madison	34 min
May 16, 8:14 PM EDT	Special Weather Statement	GSP	Mecklenburg	31 min
May 16, 8:14 PM EDT	Special Weather Statement	GSP	Caldwell	46 min
May 16, 8:24 PM EDT	Special Weather Statement	GSP	Yancey	36 min
May 16, 8:29 PM EDT	Special Weather Statement	GSP	Rutherford	31 min
May 16, 8:36 PM EDT	Special Weather Statement	GSP	Buncombe	39 min
May 16, 9:00 PM EDT	Special Weather Statement	GSP	Lincoln	30 min
May 16, 9:16 PM EDT	Severe Thunderstorm Warning	GSP	Gaston, Lincoln	44 min
May 16, 9:36 PM EDT	Severe Thunderstorm Warning	GSP	Cabarrus, Mecklenburg	54 min
May 16, 9:49 PM EDT	Special Weather Statement	GSP	Cleveland	41 min
May 16, 10:19 PM EDT	Severe Thunderstorm Warning	GSP	Gaston	26 min
May 16, 10:44 PM EDT	Special Weather Statement	GSP	Cabarrus, Mecklenburg, Union	31 min
May 16, 10:50 PM EDT	Special Weather Statement	GSP	Mecklenburg	25 min
May 16, 11:21 PM EDT	Special Weather Statement	GSP	Union	24 min
May 16, 11:57 PM EDT	Special Weather Statement	GSP	Union	33 min
May 17, 12:35 AM EDT	Areal Flood Advisory	GSP	Cabarrus, Mecklenburg	2 hr
May 16, 8:45 PM EDT	Special Weather Statement	GSP	Greenville	30 min
May 16, 9:14 PM EDT	Special Weather Statement	GSP	Greenville, Spartanburg	31 min
May 16, 9:45 PM EDT	Special Weather Statement	GSP	Greenville	30 min
May 16, 9:52 PM EDT	Special Weather Statement	GSP	Pickens	23 min
May 16, 10:13 PM EDT	Special Weather Statement	GSP	Greenville	32 min
May 16, 10:15 PM EDT	Special Weather Statement	GSP	Pickens	30 min
May 16, 10:45 PM EDT	Special Weather Statement	GSP	Spartanburg	30 min
May 17, 12:56 AM EDT	Areal Flood Advisory	GSP	Greenville	2 hr
May 17, 4:16 PM EDT	Special Weather Statement	GSP	Anderson	29 min
May 17, 3:09 PM EDT	Special Weather Statement	GSP	Hart	36 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2023 Every severe thunderstorm warning in 2023

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.