Alert archive / North Carolina / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 208, NWS Greenville-Spartanburg, SC

July 19, 2020Avery County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jul 19, 2020, 5:50 PM EDT for Avery County, North Carolina. It was in force for 25 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: Jul 19, 2020, 5:50 PM EDT (21:50 UTC)
Expired: Jul 19, 2020, 6:15 PM EDT
In force: 25 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Avery County, NC

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 9.8 hours before the alert went out and 182 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: 470 J/kg
Mixed-layer CIN: -164 J/kg
Mixed-layer LCL: 1324 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 55 m²/s²
0-3 km storm-relative helicity: 34 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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
Jul 19, 1:38 PM EDT	Special Weather Statement	GSP	Burke	37 min
Jul 19, 2:15 PM EDT	Special Weather Statement	GSP	Henderson	30 min
Jul 19, 2:23 PM EDT	Special Weather Statement	GSP	Caldwell	22 min
Jul 19, 2:27 PM EDT	Heat Advisory	GSP	Cabarrus, Davie, Mecklenburg, Rowan, Union	28 hr
Jul 19, 2:27 PM EDT	Special Weather Statement	GSP	Jackson	33 min
Jul 19, 2:38 PM EDT	Severe Thunderstorm Warning	GSP	Henderson	30 min
Jul 19, 3:04 PM EDT	Special Weather Statement	GSP	Jackson	26 min
Jul 19, 3:09 PM EDT	Special Weather Statement	GSP	Polk	36 min
Jul 19, 3:29 PM EDT	Special Weather Statement	GSP	Jackson	31 min
Jul 19, 3:39 PM EDT	Special Weather Statement	GSP	Rutherford	36 min
Jul 19, 4:01 PM EDT	Special Weather Statement	GSP	Yancey	29 min
Jul 19, 4:34 PM EDT	Special Weather Statement	GSP	Avery, Mitchell	26 min
Jul 19, 4:57 PM EDT	Special Weather Statement	GSP	Cleveland	33 min
Jul 19, 5:32 PM EDT	Special Weather Statement	GSP	Avery	28 min
Jul 19, 6:25 PM EDT	Special Weather Statement	GSP	Graham	35 min
Jul 19, 6:27 PM EDT	Special Weather Statement	GSP	Madison	33 min
Jul 19, 6:31 PM EDT	Special Weather Statement	GSP	Iredell	29 min
Jul 19, 6:35 PM EDT	Severe Thunderstorm Warning	GSP	Davie, Iredell, Rowan	40 min
Jul 19, 7:15 PM EDT	Special Weather Statement	GSP	Rowan	30 min
Jul 19, 7:48 PM EDT	Special Weather Statement	GSP	Rowan	27 min
Jul 19, 4:16 PM EDT	Special Weather Statement	GSP	Spartanburg	29 min
Jul 19, 4:41 PM EDT	Special Weather Statement	GSP	Greenville	34 min
Jul 19, 5:56 PM EDT	Special Weather Statement	GSP	Chester	34 min
Jul 19, 5:59 PM EDT	Severe Thunderstorm Warning	GSP	Chester	31 min
Jul 19, 6:05 PM EDT	Special Weather Statement	GSP	York	25 min
Jul 19, 6:22 PM EDT	Special Weather Statement	GSP	York	23 min
Jul 19, 6:57 PM EDT	Special Weather Statement	GSP	York	33 min
Jul 19, 3:01 PM EDT	Special Weather Statement	GSP	Rabun	29 min
Jul 19, 6:48 PM EDT	Special Weather Statement	GSP	Franklin	27 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2020 Every 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.