Alert archive / South Carolina / Special Weather Statements in 2021

Special Weather Statement, NWS Greenville-Spartanburg, SC

March 27, 2021Greenwood County, South Carolina

NWS Greenville-Spartanburg, SC issued this special weather statement at Mar 27, 2021, 8:47 PM EDT for Greenwood County, South Carolina. It was in force for 43 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
Mar 27, 2021, 8:47 PM EDT (00:47 UTC)
Expired
Mar 27, 2021, 9:30 PM EDT
In force
43 min
Issued by
NWS Greenville-Spartanburg, SC

County Greenwood County, SC

The radar

The Greer radar (KGSP), 85 km from the middle of the area, began a volume at 00:47 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, 0.8 hours before the alert went out and 231 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 2021-03-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 471 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 2021-03-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 136 square meters per square second.1939587897Sfc1 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
471 J/kg
Mixed-layer CIN
-26 J/kg
Mixed-layer LCL
1472 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
136 m²/s²
0-3 km storm-relative helicity
119 m²/s²
Significant tornado parameter
0.2
Supercell composite
4.2

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 Mar 27, 8:16 PM EDT, 31 minutes earlier.

Area forecast discussion, Mar 27, 8:16 PM EDT, 31 minutes before
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Hazardous weather outlook, Mar 27, 6:00 PM EDT, 2 hours 47 minutes before
Hazardous Weather Outlook
National Weather Service Greenville-Spartanburg SC
600 PM EDT Sat Mar 27 2021

GAZ010-017-018-026-028-029-NCZ035>037-056-057-068>072-082-502-504-
506-508-510-SCZ001>014-019-282200-
Rabun-Habersham-Stephens-Franklin-Hart-Elbert-Alexander-Iredell-
Davie-Catawba-Rowan-Cleveland-Lincoln-Gaston-Mecklenburg-Cabarrus-
Union NC-Greater Caldwell-Greater Burke-Eastern McDowell-
Greater Rutherford-Eastern Polk-Oconee Mountains-Pickens Mountains-
Greenville Mountains-Greater Oconee-Greater Pickens-
Greater Greenville-Spartanburg-Cherokee-York-Anderson-Abbeville-
Laurens-Union SC-Chester-Greenwood-
600 PM EDT Sat Mar 27 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 expected to impact the area, primarily
this evening. While the main threats with these storms will be from
cloud to ground lightning, gusty winds, and locally heavy rainfall, a
few storms could produce brief severe weather in the form of damaging
winds and large hail.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

A line of thunderstorms is expected to cross the area from west to
east during the late morning to mid-afternoon hours on Sunday.
Damaging winds will be the main threat, but a few storms may produce
large hail, as well.

.SPOTTER INFORMATION STATEMENT...

None.

NCZ033-048>053-058-059-062>065-501-503-505-507-509-282200-
Avery-Madison-Yancey-Mitchell-Swain-Haywood-Buncombe-Graham-
Northern Jackson-Macon-Southern Jackson-Transylvania-Henderson-
Caldwell Mountains-Burke Mountains-McDowell Mountains-
Rutherford Mountains-Polk Mountains-
600 PM EDT Sat Mar 27 2021

...FLASH FLOOD WATCH IN EFFECT THROUGH SUNDAY EVENING...

This Hazardous Weather Outlook is for western North Carolina.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

In addition to the flooding threat, scattered thunderstorms remain
possible across the area tonight. The main threats with these storms
will be from cloud to ground lightning, gusty winds, and locally
heavy rainfall.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

A line of thunderstorms is expected to cross the area from west to
east during the late morning to mid-afternoon hours on Sunday.
Damaging winds will be the main threat, but a few storms may produce
large hail, as well.

.SPOTTER INFORMATION STATEMENT...

None.

Lane

In the hours before

Special weather statement, Mar 27, 5:45 PM EDT, 3 hours 2 minutes before
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
545 PM EDT Sat Mar 27 2021

GAZ028-029-272230-
Elbert GA-Hart GA-
545 PM EDT Sat Mar 27 2021

...A STRONG THUNDERSTORM WITH INTENSE LIGHTNING WILL IMPACT
NORTHWESTERN ELBERT AND SOUTHWESTERN HART COUNTIES UNTIL 630 PM
EDT...

At 545 PM EDT, Doppler radar was tracking a strong thunderstorm with
intense lightning near Danielsville, or near Colbert, moving east at
20 mph.

Locations to be impacted include...
Elberton, Bowman, Dewy Rose, Sweet City, Nuberg and Vanna.

In addition to intense lightning, wind gusts up to 40 mph and pea
size hail will be possible in these areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Frequent lightning is occurring with this storm. If outdoors, try to
get indoors or into a hard topped vehicle. Otherwise, stay away from
open areas and isolated high objects such as trees. When indoors,
stay away from windows and doors and avoid using wired electronic
devices. Do not take a shower or bath. Try to unplug unnecessary
appliances before the storm approaches.

&&

LAT...LON 3405 8299 3408 8300 3408 8301 3410 8304
      3411 8303 3412 8305 3415 8306 3417 8310
      3419 8309 3420 8309 3423 8308 3425 8311
      3433 8292 3408 8281 3404 8297
TIME...MOT...LOC 2145Z 249DEG 17KT 3408 8324

RM
Special weather statement, Mar 27, 6:55 PM EDT, 1 hour 52 minutes before
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Special weather statement, Mar 27, 7:10 PM EDT, 1 hour 37 minutes before
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Special weather statement, Mar 27, 7:11 PM EDT, 1 hour 36 minutes before
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Special weather statement, Mar 27, 7:35 PM EDT, 1 hour 12 minutes before
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
735 PM EDT Sat Mar 27 2021

SCZ005>007-280000-
Greater Pickens SC-Spartanburg SC-Greater Greenville SC-
735 PM EDT Sat Mar 27 2021

...A STRONG THUNDERSTORM WILL IMPACT EAST CENTRAL GREENVILLE...WEST
CENTRAL SPARTANBURG AND EAST CENTRAL PICKENS COUNTIES UNTIL 800 PM
EDT...

At 735 PM EDT, Doppler radar was tracking a strong thunderstorm 5
miles northeast of Easley, or near Berea, moving east at 35 mph.

Locations to be impacted include...
Greenville Downtown, Easley, Greenville Eastside, West Greenville,
Greer, Mauldin, Taylors, Berea, Five Forks and Welcome.

Wind gusts up to 45 mph and pea size hail will be possible in these
areas.

LAT...LON 3478 8246 3480 8246 3482 8248 3480 8253
      3481 8260 3496 8257 3497 8256 3496 8217
      3474 8223
TIME...MOT...LOC 2335Z 276DEG 29KT 3489 8252

RM
Special weather statement, Mar 27, 8:47 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
847 PM EDT Sat Mar 27 2021

SCZ011-012-019-280130-
Laurens SC-Abbeville SC-Greenwood SC-
847 PM EDT Sat Mar 27 2021

...A STRONG THUNDERSTORM WILL IMPACT SOUTHWESTERN LAURENS...
SOUTHEASTERN ABBEVILLE AND GREENWOOD COUNTIES UNTIL 930 PM EDT...

At 847 PM EDT, Doppler radar was tracking a strong thunderstorm 14
miles south of Abbeville, or 7 miles west of Troy, moving northeast
at 45 mph.

Locations to be impacted include...
Greenwood, Abbeville, Ninety Six, Cokesbury, Hodges, Troy, Lake
Greenwood State Park, Lake Greenwood, Greenwood State Park and Ninety
Six Historic Site.

Wind gusts up to 45 mph and half inch hail will be possible in these
areas.

LAT...LON 3406 8233 3406 8244 3408 8248 3407 8253
      3441 8212 3422 8193 3420 8194 3420 8193
      3418 8192 3418 8191 3416 8190 3398 8221
      3402 8225 3397 8231
TIME...MOT...LOC 0047Z 229DEG 38KT 3398 8243

RM

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 28, 1:31 AM EDTSpecial Weather StatementGSPUnion29 min
Mar 28, 4:00 AM EDTWind AdvisoryGSPAvery, Mitchell, Yancey22 hr
Mar 28, 8:41 AM EDTSpecial Weather StatementGSPHaywood, Swain49 min
Mar 28, 10:05 AM EDTRiver Flood AdvisoryGSPBuncombe, Henderson23 hr
Mar 28, 6:35 PM EDTSpecial Weather StatementGSPCleveland, Gaston, Lincoln, Rowan40 min
Mar 28, 7:22 PM EDTSpecial Weather StatementGSPCabarrus, Gaston, Mecklenburg, Rowan68 min
Mar 28, 7:54 PM EDTSpecial Weather StatementGSPMecklenburg21 min
Mar 28, 7:55 PM EDTSpecial Weather StatementGSPMecklenburg20 min
Mar 28, 11:49 AM EDTSpecial Weather StatementGSPAnderson41 min
Mar 28, 12:25 PM EDTSpecial Weather StatementGSPLaurens50 min
Mar 28, 12:49 PM EDTSpecial Weather StatementGSPAbbeville, Greenwood41 min
Mar 28, 1:09 PM EDTSpecial Weather StatementGSPChester, Union, York51 min

Nearby

Special Weather Statements in South Carolina, 2021Every 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.