Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 25, NWS Greenville-Spartanburg, SC

April 10, 2021Caldwell County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Apr 10, 2021, 8:46 PM EDT for Caldwell County, North Carolina. It was in force for 44 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Apr 10, 2021, 8:46 PM EDT (00:46 UTC)
Expired: Apr 10, 2021, 9:30 PM EDT
In force: 44 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Caldwell County, NC

The radar

The Greer radar (KGSP), 136 km from the middle of the area, began a volume at 00:50 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.

What was reported inside it

Time	Report	Where	Remark
Apr 10, 8:50 PM EDT	TSTM WND DMG	3 Ssw Collettsville, NC	TREES SNAPPED AND/OR UPROOTED ON PLAYMORE BEACH RD.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 0.8 hours before the alert went out and 150 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: 205 J/kg
Mixed-layer CIN: -20 J/kg
Mixed-layer LCL: 741 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 261 m²/s²
0-3 km storm-relative helicity: 347 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.6

Open this sounding in Storm Lab

The text

As transmitted.

953 
WUUS52 KGSP 110046
SVRGSP
NCC027-110130-
/O.NEW.KGSP.SV.W.0025.210411T0046Z-210411T0130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Greenville-Spartanburg SC
846 PM EDT Sat Apr 10 2021

The National Weather Service in Greenville-Spartanburg has issued a

* Severe Thunderstorm Warning for...
  Caldwell County in western North Carolina...

* Until 930 PM EDT.

* At 846 PM EDT, a severe thunderstorm was located 7 miles west of
  Lenoir, or 5 miles northwest of Gamewell, moving northeast at 35
  mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to trees and power lines.

* Locations impacted include...
  Lenoir, Gamewell, Cajah's Mountain, Blowing Rock In Caldwell
  County, Cedar Rock, Edgemont, Kings Creek, Globe, Collettsville and
  Patterson.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Scattered trees and power lines will be blown down in the warned
area. 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.

&&

LAT...LON 3612 8155 3610 8152 3609 8145 3607 8144
      3607 8141 3604 8140 3604 8137 3601 8133
      3600 8133 3581 8159 3582 8160 3582 8162
      3585 8164 3588 8171 3592 8175 3593 8178
      3595 8178 3595 8180 3612 8172
TIME...MOT...LOC 0046Z 220DEG 32KT 3591 8167 

HAIL...<.75IN
WIND...60MPH
 
$$

8

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 10, 8:15 PM EDT	Tornado Warning	GSP	Avery, Burke, Caldwell, McDowell	45 min
Apr 10, 8:31 PM EDT	Special Weather Statement	GSP	Alexander, Catawba, Iredell	44 min
Apr 10, 8:38 PM EDT	Special Weather Statement	GSP	Cabarrus, Mecklenburg, Union	52 min
Apr 10, 9:26 PM EDT	Special Weather Statement	GSP	Davie, Iredell	34 min
Apr 10, 9:35 PM EDT	Special Weather Statement	GSP	Cabarrus, Rowan	25 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2021 Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.