Alert archive / North Carolina / Special Weather Statements in 2021

Special Weather Statement, NWS Greenville-Spartanburg, SC

May 28, 2021Avery County, North Carolina

NWS Greenville-Spartanburg, SC issued this special weather statement at May 28, 2021, 7:04 PM EDT for Avery County, North Carolina. It was in force for 26 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: May 28, 2021, 7:04 PM EDT (23:04 UTC)
Expired: May 28, 2021, 7:30 PM EDT
In force: 26 min
Issued by: NWS Greenville-Spartanburg, SC

County Avery County, NC

The radar

The Knoxville radar (KMRX), 135 km from the middle of the area, began a volume at 23:07 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 12:00Z, 11.1 hours before the alert went out and 180 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: 106 J/kg
Mixed-layer CIN: -53 J/kg
Mixed-layer LCL: 1467 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 83 m²/s²
0-3 km storm-relative helicity: 62 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 May 28, 6:12 PM EDT, 52 minutes earlier.

Area forecast discussion, May 28, 6:12 PM EDT, 52 minutes before

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Hazardous weather outlook, May 28, 4:08 PM EDT, 2 hours 56 minutes before

Hazardous Weather Outlook
National Weather Service Greenville-Spartanburg SC
408 PM EDT Fri May 28 2021

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-292015-
Rabun-Habersham-Stephens-Franklin-Hart-Elbert-Avery-Alexander-
Iredell-Davie-Madison-Yancey-Mitchell-Swain-Haywood-Buncombe-Catawba-
Rowan-Graham-Northern Jackson-Macon-Southern Jackson-Transylvania-
Henderson-Cleveland-Lincoln-Gaston-Mecklenburg-Cabarrus-Union NC-
Caldwell Mountains-Greater Caldwell-Burke Mountains-Greater Burke-
McDowell Mountains-Eastern McDowell-Rutherford Mountains-
Greater Rutherford-Polk Mountains-Eastern Polk-Oconee Mountains-
Pickens Mountains-Greenville Mountains-Greater Oconee-
Greater Pickens-Greater Greenville-Spartanburg-Cherokee-York-
Anderson-Abbeville-Laurens-Union SC-Chester-Greenwood-
408 PM EDT Fri May 28 2021

This Hazardous Weather Outlook is for northeast Georgia, piedmont
North Carolina, western North Carolina and upstate South Carolina.

.DAY ONE...Tonight.

Scattered thunderstorms are likely to continue this evening. The
main threats from these storms will be cloud-to-ground lightning and
strong to possibly damaging straight line winds.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed. Please relay any information about
observed severe weather to the NWS while following all local, state,
and CDC guidelines.

MPR

In the hours before

Special weather statement, May 28, 6:03 PM EDT, 1 hour 1 minute before

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Special weather statement, May 28, 6:10 PM EDT, 54 minutes before

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Special weather statement, May 28, 6:21 PM EDT, 43 minutes before

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Special weather statement, May 28, 6:34 PM EDT, 30 minutes before

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Special weather statement, May 28, 6:38 PM EDT, 26 minutes before

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Special weather statement, May 28, 7:04 PM EDT, 0 minutes before

Special Weather Statement
National Weather Service Greenville-Spartanburg SC
704 PM EDT Fri May 28 2021

NCZ033-282330-
Avery NC-
704 PM EDT Fri May 28 2021

...A STRONG THUNDERSTORM WILL IMPACT NORTHERN AVERY COUNTY UNTIL 730
PM EDT...

At 704 PM EDT, Doppler radar was tracking a strong thunderstorm near
Beech Mountain, moving east at 50 mph.

Locations to be impacted include...
Banner Elk, Elk Park, Beech Mountain In Avery County, Sugar Mountain,
Seven Devils, Grandfather Mountain State Park and Minneapolis.

Wind gusts up to 50 mph will be possible in these areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Gusty winds can blow down trees that are dead, or that have weakened
root systems. Outdoor furniture and similar items can be tossed
around if not anchored. Seek shelter indoors.

&&

LAT...LON 3627 8189 3625 8190 3624 8190 3623 8191
      3621 8190 3619 8188 3619 8186 3616 8183
      3611 8181 3610 8179 3611 8203 3612 8203
      3629 8192
TIME...MOT...LOC 2304Z 267DEG 44KT 3621 8195

HG

The office that day

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

Issued	Product	Office	Counties	Lasted
May 28, 3:08 PM EDT	Special Weather Statement	GSP	Lincoln	37 min
May 28, 3:28 PM EDT	Special Weather Statement	GSP	Mecklenburg	32 min
May 28, 3:39 PM EDT	Special Weather Statement	GSP	Gaston	36 min
May 28, 3:53 PM EDT	Special Weather Statement	GSP	Gaston	37 min
May 28, 4:08 PM EDT	Special Weather Statement	GSP	Rowan	22 min
May 28, 4:21 PM EDT	Special Weather Statement	GSP	Graham	24 min
May 28, 4:26 PM EDT	Special Weather Statement	GSP	Cabarrus, Rowan	34 min
May 28, 4:31 PM EDT	Special Weather Statement	GSP	Gaston	29 min
May 28, 4:44 PM EDT	Special Weather Statement	GSP	Swain	31 min
May 28, 4:48 PM EDT	Special Weather Statement	GSP	Cabarrus	27 min
May 28, 4:50 PM EDT	Special Weather Statement	GSP	Mecklenburg	25 min
May 28, 5:03 PM EDT	Severe Thunderstorm Warning	GSP	Cabarrus, Rowan	27 min
May 28, 5:17 PM EDT	Special Weather Statement	GSP	Mecklenburg	28 min
May 28, 5:44 PM EDT	Special Weather Statement	GSP	Union	31 min
May 28, 5:53 PM EDT	Special Weather Statement	GSP	Graham, Swain	52 min
May 28, 6:01 PM EDT	Special Weather Statement	GSP	Madison, Mitchell, Swain	59 min
May 28, 6:34 PM EDT	Special Weather Statement	GSP	Avery, Mitchell, Yancey	56 min
May 28, 6:38 PM EDT	Special Weather Statement	GSP	Graham, Haywood, Jackson, Macon, Swain	67 min
May 28, 2:12 PM EDT	Special Weather Statement	GSP	Anderson	33 min
May 28, 2:44 PM EDT	Special Weather Statement	GSP	Greenville	31 min
May 28, 2:55 PM EDT	Special Weather Statement	GSP	Oconee, Pickens	35 min
May 28, 2:58 PM EDT	Special Weather Statement	GSP	Laurens	32 min
May 28, 3:04 PM EDT	Special Weather Statement	GSP	York	26 min
May 28, 3:21 PM EDT	Special Weather Statement	GSP	Spartanburg	24 min
May 28, 3:30 PM EDT	Special Weather Statement	GSP	Greenville	30 min
May 28, 3:40 PM EDT	Special Weather Statement	GSP	Cherokee	35 min
May 28, 4:06 PM EDT	Special Weather Statement	GSP	Cherokee	24 min
May 28, 4:46 PM EDT	Special Weather Statement	GSP	Chester	29 min
May 28, 6:03 PM EDT	Special Weather Statement	GSP	Anderson	27 min
May 28, 6:10 PM EDT	Special Weather Statement	GSP	Abbeville	35 min
May 28, 6:21 PM EDT	Special Weather Statement	GSP	Laurens	24 min
May 28, 7:31 PM EDT	Special Weather Statement	GSP	Cherokee	29 min

Nearby

Special Weather Statements in North 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.