Alert archive / South Carolina / Special Weather Statements in 2020

Special Weather Statement, NWS Greenville-Spartanburg, SC

August 9, 2020Pickens County, South Carolina

NWS Greenville-Spartanburg, SC issued this special weather statement at Aug 9, 2020, 2:06 PM EDT for Pickens County, South Carolina. It was in force for 24 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 9, 2020, 2:06 PM EDT (18:06 UTC)
Expired
Aug 9, 2020, 2:30 PM EDT
In force
24 min
Issued by
NWS Greenville-Spartanburg, SC

County Pickens County, SC

The radar

The Greer radar (KGSP), 50 km from the middle of the area, began a volume at 18:06 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 12:00Z, 6.1 hours before the alert went out and 250 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 12:00Z on 2020-08-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 567 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 12:00Z on 2020-08-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -21 square meters per square second.1939Sfc1 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
567 J/kg
Mixed-layer CIN
-71 J/kg
Mixed-layer LCL
1181 m above ground
0-6 km bulk shear
2 kt
0-1 km storm-relative helicity
-21 m²/s²
0-3 km storm-relative helicity
25 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 9, 1:36 PM EDT, 30 minutes earlier.

Area forecast discussion, Aug 9, 1:36 PM EDT, 30 minutes before
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Hazardous weather outlook, Aug 9, 5:57 AM EDT, 8 hours 9 minutes before
Hazardous Weather Outlook
National Weather Service Greenville-Spartanburg SC
557 AM EDT Sun Aug 9 2020

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-101000-
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-
557 AM EDT Sun Aug 9 2020

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

.DAY ONE...Today and tonight.

Isolated to scattered showers and thunderstorms are expected to
develop across the region again this afternoon and evening. Any of
the thunderstorms may produce cloud to ground lightning, heavy
downpours, and gusty winds. Isolated flash flooding may be possible
if storms train over specific locations.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

None.

JPT

In the hours before

Special weather statement, Aug 9, 1:18 PM EDT, 48 minutes before
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Special weather statement, Aug 9, 1:50 PM EDT, 16 minutes before
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Special weather statement, Aug 9, 2:06 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
206 PM EDT Sun Aug 9 2020

SCZ002-003-091830-
Pickens Mountains SC-Greenville Mountains SC-
206 PM EDT Sun Aug 9 2020

...A STRONG THUNDERSTORM WILL IMPACT NORTHWESTERN GREENVILLE AND
NORTH CENTRAL PICKENS COUNTIES UNTIL 230 PM EDT...

At 206 PM EDT, Doppler radar was tracking a strong thunderstorm 11
miles north of Pickens, or near Table Rock State Park, moving
southeast at 15 mph.

Locations to be impacted include...
Caesars Head State Park, Table Rock State Park, Pumpkintown,
Sassafras Mountain and Rocky Bottom.

Wind gusts up to 40 mph, pea size hail and very heavy rainfall rates
up to 2 inches per hour 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.

Torrential rainfall may flood areas with poor drainage, such as
ditches and underpasses. Avoid these areas and do not cross flooded
roads. Water levels of small streams may also rise rapidly. Seek
higher ground if threatened by flood waters.

&&

LAT...LON 3494 8267 3506 8281 3508 8278 3507 8278
      3507 8275 3508 8275 3508 8274 3509 8273
      3510 8270 3510 8269 3511 8270 3512 8268
      3509 8257
TIME...MOT...LOC 1806Z 311DEG 12KT 3505 8270

KRENTZ

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 8, 9:28 PM EDTSpecial Weather StatementGSPPolk32 min
Aug 9, 3:49 PM EDTSpecial Weather StatementGSPRutherford26 min
Aug 9, 4:53 PM EDTSpecial Weather StatementGSPCleveland37 min
Aug 9, 6:29 PM EDTSpecial Weather StatementGSPGaston31 min
Aug 9, 6:31 PM EDTSpecial Weather StatementGSPUnion29 min
Aug 9, 6:39 PM EDTSpecial Weather StatementGSPUnion36 min
Aug 9, 7:05 PM EDTSpecial Weather StatementGSPMecklenburg25 min
Aug 9, 7:13 PM EDTAreal Flood AdvisoryGSPMecklenburg, Union2 hr
Aug 9, 3:04 AM EDTSpecial Weather StatementGSPCherokee41 min
Aug 9, 3:24 AM EDTAreal Flood AdvisoryGSPCherokee, Spartanburg4 hr
Aug 9, 1:50 PM EDTSpecial Weather StatementGSPOconee25 min
Aug 9, 3:18 PM EDTSpecial Weather StatementGSPUnion27 min
Aug 9, 3:33 PM EDTSpecial Weather StatementGSPSpartanburg27 min
Aug 9, 4:11 PM EDTSpecial Weather StatementGSPCherokee34 min
Aug 9, 4:12 PM EDTSpecial Weather StatementGSPChester33 min
Aug 9, 4:36 PM EDTSpecial Weather StatementGSPAnderson24 min
Aug 9, 4:40 PM EDTSevere Thunderstorm WarningGSPChester35 min
Aug 9, 5:01 PM EDTSpecial Weather StatementGSPAbbeville29 min
Aug 9, 5:04 PM EDTSpecial Weather StatementGSPCherokee, Union26 min
Aug 9, 5:21 PM EDTSevere Thunderstorm WarningGSPSpartanburg, Union39 min
Aug 9, 5:32 PM EDTSevere Thunderstorm WarningGSPCherokee, Union, York43 min
Aug 9, 5:36 PM EDTSpecial Weather StatementGSPGreenwood24 min
Aug 9, 5:54 PM EDTSpecial Weather StatementGSPLaurens36 min
Aug 9, 6:09 PM EDTSpecial Weather StatementGSPGreenwood36 min
Aug 9, 6:28 PM EDTSpecial Weather StatementGSPLaurens32 min
Aug 9, 6:42 PM EDTSevere Thunderstorm WarningGSPLaurens, Union48 min
Aug 9, 1:18 PM EDTSpecial Weather StatementGSPHabersham42 min
Aug 9, 2:21 PM EDTSpecial Weather StatementGSPStephens24 min
Aug 9, 2:52 PM EDTSpecial Weather StatementGSPStephens23 min

Nearby

Special Weather Statements in South 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.