Alert archive / North Carolina / Special Weather Statements in 2020

Special Weather Statement, NWS Greenville-Spartanburg, SC

August 7, 2020Henderson County, North Carolina

NWS Greenville-Spartanburg, SC issued this special weather statement at Aug 7, 2020, 12:41 AM EDT for Henderson County, North Carolina. It was in force for 34 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
Aug 7, 2020, 12:41 AM EDT (04:41 UTC)
Expired
Aug 7, 2020, 1:15 AM EDT
In force
34 min
Issued by
NWS Greenville-Spartanburg, SC

County Henderson County, NC

The radar

The Greer radar (KGSP), 38 km from the middle of the area, began a volume at 04:43 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

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 4.7 hours before the alert went out and 274 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-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 00:00Z on 2020-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 305 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 00:00Z on 2020-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
305 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
1824 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
11 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 Aug 6, 10:35 PM EDT, 2 hours 6 minutes earlier.

Area forecast discussion, Aug 6, 10:35 PM EDT, 2 hours 6 minutes before
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Hazardous weather outlook, Aug 6, 4:08 AM EDT, 20 hours 33 minutes before
Hazardous Weather Outlook
National Weather Service Greenville-Spartanburg SC
408 AM EDT Thu Aug 6 2020

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-070815-
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 AM EDT Thu Aug 6 2020

This Hazardous Weather Outlook is for northeast Georgia, Piedmont
North Carolina, western North Carolina and Upstate South Carolina.

.DAY ONE...Today and tonight.

Numerous thunderstorms are expected to develop across the region this
afternoon and evening, with the most widespread coverage likely
occurring across western North Carolina. Any of these thunderstorms
will be capable of producing dangerous lightning, gusty winds, and
torrential downpours. Some of these storms may become severe, with
damaging wind gusts being the primary threat. Any locations
repeatedly affected by thunderstorms over a short period of time will
be prone to localized flash flooding from the heavy rainfall.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

HG

In the hours before

Special weather statement, Aug 6, 10:50 PM EDT, 1 hour 51 minutes before
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Special weather statement, Aug 6, 10:59 PM EDT, 1 hour 42 minutes before
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Special weather statement, Aug 6, 11:44 PM EDT, 57 minutes before
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Special weather statement, Aug 7, 12:00 AM EDT, 41 minutes before
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Special weather statement, Aug 7, 12:12 AM EDT, 29 minutes before
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Special weather statement, Aug 7, 12:41 AM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 6, 8:00 PM EDTSpecial Weather StatementGSPRutherford30 min
Aug 6, 8:11 PM EDTSpecial Weather StatementGSPHenderson34 min
Aug 6, 8:20 PM EDTSpecial Weather StatementGSPCatawba, Lincoln, Rowan25 min
Aug 6, 8:33 PM EDTSpecial Weather StatementGSPBurke, Caldwell, Cleveland57 min
Aug 6, 8:38 PM EDTAreal Flood AdvisoryGSPCatawba, Iredell115 min
Aug 6, 8:40 PM EDTAreal Flood AdvisoryGSPAlexander, Burke, Caldwell, Catawba4 hr
Aug 6, 8:50 PM EDTAreal Flood AdvisoryGSPBuncombe, Henderson97 min
Aug 6, 8:51 PM EDTAreal Flood AdvisoryGSPMadison, Yancey28 min
Aug 6, 8:58 PM EDTSevere Thunderstorm WarningGSPCleveland47 min
Aug 6, 9:14 PM EDTFlash Flood WarningGSPCatawba, Iredell2 hr
Aug 6, 9:33 PM EDTSpecial Weather StatementGSPCatawba27 min
Aug 6, 10:01 PM EDTAreal Flood WarningGSPDavie2 hr
Aug 6, 10:12 PM EDTSpecial Weather StatementGSPCleveland, Lincoln33 min
Aug 6, 10:42 PM EDTSpecial Weather StatementGSPCleveland, Lincoln63 min
Aug 6, 10:50 PM EDTSpecial Weather StatementGSPCleveland, Polk, Rutherford55 min
Aug 6, 11:09 PM EDTAreal Flood AdvisoryGSPLincoln98 min
Aug 6, 11:24 PM EDTAreal Flood AdvisoryGSPCleveland, Polk, Rutherford3 hr
Aug 6, 11:34 PM EDTAreal Flood WarningGSPCatawba, Iredell62 min
Aug 7, 12:12 AM EDTSpecial Weather StatementGSPHenderson33 min
Aug 7, 12:36 AM EDTAreal Flood AdvisoryGSPCatawba, Iredell2 hr
Aug 7, 5:42 PM EDTSpecial Weather StatementGSPCaldwell33 min
Aug 7, 5:46 PM EDTSpecial Weather StatementGSPBurke29 min
Aug 7, 6:00 PM EDTSpecial Weather StatementGSPYancey30 min
Aug 7, 6:21 PM EDTSpecial Weather StatementGSPCatawba24 min
Aug 7, 7:00 PM EDTSpecial Weather StatementGSPPolk30 min
Aug 7, 7:18 PM EDTSpecial Weather StatementGSPCabarrus27 min
Aug 7, 7:28 PM EDTSpecial Weather StatementGSPLincoln32 min
Aug 7, 7:29 PM EDTSpecial Weather StatementGSPPolk31 min
Aug 6, 10:59 PM EDTSpecial Weather StatementGSPOconee31 min
Aug 6, 11:44 PM EDTSpecial Weather StatementGSPPickens31 min
Aug 7, 12:00 AM EDTSpecial Weather StatementGSPSpartanburg30 min
Aug 7, 12:17 AM EDTAreal Flood AdvisoryGSPSpartanburg3 hr
Aug 7, 2:32 AM EDTAreal Flood AdvisoryGSPGreenville3 hr
Aug 7, 3:31 AM EDTAreal Flood AdvisoryGSPSpartanburg119 min
Aug 7, 5:33 AM EDTAreal Flood AdvisoryGSPGreenville, Spartanburg5 hr
Aug 7, 5:59 PM EDTSpecial Weather StatementGSPYork31 min
Aug 6, 9:26 PM EDTSpecial Weather StatementGSPHabersham34 min
Aug 6, 10:33 PM EDTAreal Flood AdvisoryGSPHabersham2 hr

Nearby

Special Weather Statements in North Carolina, 2020Every special weather statement 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; radar from the NEXRAD Level II archive.