Alert archive / South Carolina / Special Weather Statements in 2021

Special Weather Statement, NWS Greenville-Spartanburg, SC

July 2, 2021Laurens County, South Carolina

NWS Greenville-Spartanburg, SC issued this special weather statement at Jul 2, 2021, 11:56 PM EDT for Laurens County, South 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: Jul 2, 2021, 11:56 PM EDT (03:56 UTC)
Expired: Jul 3, 2021, 12:30 AM EDT
In force: 34 min
Issued by: NWS Greenville-Spartanburg, SC

County Laurens County, SC

The radar

The Greer radar (KGSP), 46 km from the middle of the area, began a volume at 03:57 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, 3.9 hours before the alert went out and 238 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: 367 J/kg
Mixed-layer CIN: -41 J/kg
Mixed-layer LCL: 1003 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 10 m²/s²
0-3 km storm-relative helicity: 38 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

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 Jul 2, 10:53 PM EDT, 1 hour 3 minutes earlier.

Area forecast discussion, Jul 2, 10:53 PM EDT, 1 hour 3 minutes before

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Hazardous weather outlook, Jul 2, 11:03 PM EDT, 53 minutes before

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In the hours before

Special weather statement, Jul 2, 9:05 PM EDT, 2 hours 51 minutes before

Special Weather Statement
National Weather Service Greenville-Spartanburg SC
905 PM EDT Fri Jul 2 2021

GAZ028-SCZ004-010-030130-
Hart GA-Greater Oconee SC-Anderson SC-
905 PM EDT Fri Jul 2 2021

...A STRONG THUNDERSTORM WILL IMPACT NORTH CENTRAL HART...WEST
CENTRAL ANDERSON AND SOUTHEASTERN OCONEE COUNTIES UNTIL 930 PM EDT...

At 905 PM EDT, Doppler radar was tracking a strong thunderstorm 9
miles south of Seneca, or 6 miles northeast of Tugaloo State Park,
moving southeast at 10 mph.

Locations to be impacted include...
Reed Creek, Lake Hartwell, Fair Play, Townville, Oakway and Sandy
Springs.

Wind gusts up to 40 mph and pea size hail will be possible in these
areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3453 8308 3465 8297 3462 8286 3461 8286
      3461 8285 3458 8273 3439 8292
TIME...MOT...LOC 0105Z 308DEG 10KT 3455 8297

ARK

Special weather statement, Jul 2, 9:52 PM EDT, 2 hours 4 minutes before

Special Weather Statement
National Weather Service Greenville-Spartanburg SC
952 PM EDT Fri Jul 2 2021

SCZ010-030215-
Anderson SC-
952 PM EDT Fri Jul 2 2021

...A STRONG THUNDERSTORM WILL IMPACT SOUTHWESTERN ANDERSON COUNTY
UNTIL 1015 PM EDT...

At 952 PM EDT, Doppler radar was tracking a strong thunderstorm 9
miles southwest of Anderson, or 4 miles southeast of Lake Hartwell,
moving southeast at 10 mph.

Locations to be impacted include...
Anderson, Homeland Park, Iva, Starr, Anderson Airport, Lake Hartwell,
Broadway Lake and Sadlers Creek State Park.

Wind gusts up to 40 mph and pea size hail will be possible in these
areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3423 8274 3427 8275 3430 8278 3434 8279
      3437 8284 3438 8284 3446 8286 3455 8278
      3443 8252 3422 8273
TIME...MOT...LOC 0152Z 308DEG 8KT 3443 8278

ARK

Special weather statement, Jul 2, 10:13 PM EDT, 1 hour 43 minutes before

Special Weather Statement
National Weather Service Greenville-Spartanburg SC
1013 PM EDT Fri Jul 2 2021

SCZ005-010-030245-
Greater Pickens SC-Anderson SC-
1013 PM EDT Fri Jul 2 2021

...A STRONG THUNDERSTORM WILL IMPACT NORTHEASTERN ANDERSON AND
SOUTHEASTERN PICKENS COUNTIES UNTIL 1045 PM EDT...

At 1013 PM EDT, Doppler radar was tracking a strong thunderstorm 4
miles southwest of Easley, or 4 miles east of Liberty, moving
southeast at 10 mph.

Locations to be impacted include...
Easley, Powdersville, Piedmont, Northlake, Liberty, Norris and West
Pelzer.

Wind gusts up to 35 mph and very heavy rainfall rates up to one
inch per hour will be possible in these areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The combination of gusty winds and saturated soil conditions will
cause scattered trees and power lines to fall. Seek shelter inside an
interior room.

&&

LAT...LON 3455 8270 3477 8276 3488 8258 3477 8245
      3473 8247 3471 8246 3471 8247 3468 8246
      3466 8247 3465 8246
TIME...MOT...LOC 0213Z 324DEG 6KT 3477 8263

HG

Special weather statement, Jul 2, 11:56 PM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 2, 9:52 PM EDT	Special Weather Statement	GSP	Anderson	23 min
Jul 2, 10:13 PM EDT	Special Weather Statement	GSP	Anderson	32 min
Jul 2, 9:05 PM EDT	Special Weather Statement	GSP	Hart	25 min

Nearby

Special Weather Statements in South 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.