Severe Thunderstorm Warning 114, NWS Greenville-Spartanburg, SC

566 
WWUS52 KGSP 112130
SVSGSP

Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
530 PM EDT Wed Aug 11 2021

SCC047-112200-
/O.CON.KGSP.SV.W.0114.000000T0000Z-210811T2200Z/
Greenwood SC-
530 PM EDT Wed Aug 11 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM EDT
FOR SOUTHEASTERN GREENWOOD COUNTY...

At 530 PM EDT, a severe thunderstorm was located 10 miles southeast
of Greenwood, or near Ninety Six Historic Site, and is nearly
stationary.

HAZARD...60 mph wind gusts and half dollar size hail.

SOURCE...Radar indicated.

IMPACT...Minor hail damage to vehicles is expected. Expect wind 
         damage to trees and power lines.

Locations impacted include...
Ninety Six, Lake Greenwood State Park, Greenwood State Park, Ninety
Six Historic Site, Dyson, Epworth and Lake Greenwood.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Brief damaging winds will blow down trees and power lines over small
areas. A brief period of large hail is also possible. Seek shelter
inside an interior room.

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

Please report damaging winds, hail, or flooding to the National
Weather Service by calling toll free, 1, 800, 2 6 7, 8 1 0 1, or by
posting on our Facebook page, or Tweet it using hashtag nwsgsp. Your
message should describe the event and the specific location where it
occurred.

&&

LAT...LON 3417 8209 3424 8199 3420 8194 3419 8192
      3418 8192 3418 8191 3416 8191 3415 8190
      3413 8187 3410 8190 3409 8192 3404 8194
      3400 8198 3400 8199
TIME...MOT...LOC 2130Z 100DEG 1KT 3412 8199 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

TDP

Area Forecast Discussion
National Weather Service Greenville-Spartanburg SC
257 PM EDT Wed Aug 11 2021

.SYNOPSIS...
Abundant moisture will wrap around Atlantic high pressure and into
our area through Friday, bringing daily shower and thunderstorm
chances. A cold front will stall over the area this weekend, and the
remnants of Tropical Storm Fred may arrive early next week, possibly
resulting in periods of heavy rainfall Saturday through Monday.

&&

.NEAR TERM /THROUGH THURSDAY/...
As of 240 PM EDT Wednesday: We've already seen some robust cells
fire up over the higher terrain and foothills over the past few
hours, with coverage expected to increase thru the late afternoon
and into the evening with similar (or slightly greater) overall
coverage compared to yesterday. Otherwise, expect little change
in the overall environment today, with the sub-tropical ridge
firmly over the Southeast and an associated Bermuda High sfc
pattern. So expect another hot and muggy day, with scattered
to numerous aftn showers and thunderstorms. A few storms will
likely pulse up to severe levels, with the main threat being
damaging wind gusts. There will also continue to be a non-zero
flash flood threat, given the high PWATs and slow storm motions
expected. Tonight, convection should wane during the early evening
hours, leaving plenty of mid and high clouds that gradually thin
out overnight. Mountain valley fog will likely develop, with some
of it possibly being dense. Lows will be slightly above normal.

&&

.SHORT TERM /THURSDAY NIGHT THROUGH SATURDAY/...
As of 215 PM Wed: Mid level ridging will remain in place across the
region Thursday night through Saturday. This will keep temperatures
slightly above normal with highs in the lower to middle 90s in the
Piedmont and mid to upper 80s in the mountain valleys. Scattered
showers and thunderstorms are expected mainly during the afternoon
and evening hours both Friday and Saturday.

&&

.LONG TERM /SATURDAY NIGHT THROUGH WEDNESDAY/...
As of 215 PM Wed: A seasonably weak cold front will approach the
area from the north on Sunday. This will lead to an increased focus
for showers and thunderstorms on Sunday so pops will be fairly high
especially in the mountains. Based on the latest NHC track for Fred,
expect increased deep moisture to overspread the area on Monday and
Tuesday which may lead to some heavy rainfall especially in the
favored upslope areas. If the forecast for Fred changes, that would
lower the chance for heavy rainfall.

With the increased cloud cover and rainfall from Sunday into early
next week, expect highs to be in the 80s except for the higher
mountains.

&&

.AVIATION /19Z WEDNESDAY THROUGH MONDAY/...
At KCLT and elsewhere: Outside of the typical, diurnally-driven
summertime convection, I expect VFR conditions to prevail at most
sites thru the taf period. We've already seen some fairly robust
cells fire up over the higher terrain over the past couple of hours,
and I expect the coverage to increase thru the afternoon and into
the evening with similar (or slightly greater) overall coverage
compared to yesterday. Winds should remain generally light out of
the SW thru the period, except in the vicinity of thunderstorms.
Another round of mountain valley fog and patchy fog elsewhere is
expected again overnight and tomorrow morning, as winds remain light
and skies gradually clear out.

Outlook: Diurnal convection remains in the fcst for the rest of the
week. Fog and low stratus will be possible each morning, especially
over mountain valleys and areas primed by rainfall from the previous
evening.

Confidence Table...

            19-01Z        01-07Z        07-13Z        13-18Z
KCLT       High 100%     High 100%     High 100%     High 100%
KGSP       High 100%     High 100%     High 100%     High 100%
KAVL       High 100%     High  95%     Low   51%     Med   77%
KHKY       High 100%     High 100%     High  80%     High  95%
KGMU       High 100%     High 100%     High 100%     High 100%
KAND       High 100%     High 100%     High  95%     High  95%

The percentage reflects the number of guidance members agreeing
with the scheduled TAF issuance flight rule category. Complete hourly
experimental aviation forecast consistency tables are available at
the following link:

www.weather.gov/gsp/aviation

&&

.GSP WATCHES/WARNINGS/ADVISORIES...
GA...None.
NC...None.
SC...None.

&&

SYNOPSIS...SCW
NEAR TERM...JPT
SHORT TERM...SCW
LONG TERM...SCW
AVIATION...JPT

Hazardous Weather Outlook
National Weather Service Greenville-Spartanburg SC
411 PM EDT Wed Aug 11 2021

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-122015-
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-
411 PM EDT Wed Aug 11 2021

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

.DAY ONE...Tonight.

Scattered thunderstorms will continue this afternoon into this
evening across portions of the forecast area. Some of these storms
could become strong to severe. Main impacts are cloud-to-ground
lightning, brief damaging wind gusts, and heavy downpours which may
lead to localized flash flooding.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

None.

Special Weather Statement
National Weather Service Greenville-Spartanburg SC
428 PM EDT Wed Aug 11 2021

GAZ029-112100-
Elbert GA-
428 PM EDT Wed Aug 11 2021

...Strong thunderstorms will impact portions of Elbert County through
500 PM EDT...

At 428 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from 4 miles east of Elberton to 11 miles east of
Danielsville. These storms were nearly stationary.

HAZARD...Winds in excess of 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Elberton, Bowman, Middleton, Russell State Park, Lake Russell, Dewy
Rose, Sweet City and Ruckersville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3402 8294 3403 8294 3404 8298 3408 8300
      3410 8304 3411 8303 3412 8305 3420 8310
      3423 8307 3423 8299 3422 8300 3421 8298
      3425 8291 3426 8284 3409 8268 3401 8293
TIME...MOT...LOC 2028Z 151DEG 2KT 3409 8279 3418 8302

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

TDP

Special Weather Statement
National Weather Service Greenville-Spartanburg SC
431 PM EDT Wed Aug 11 2021

NCZ035-036-056-112100-
Iredell NC-Alexander NC-Catawba NC-
431 PM EDT Wed Aug 11 2021

...A strong thunderstorm will impact portions of eastern Catawba,
southeastern Alexander and west central Iredell Counties through 500
PM EDT...

At 430 PM EDT, Doppler radar was tracking a strong thunderstorm 8
miles northeast of Newton, or near Catawba, moving northeast at 5
mph.

HAZARD...Winds in excess of 40 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Statesville, Troutman, Stony Point, Claremont, Catawba, Lookout
Shoals Lake, Lake Norman State Park, Bandys, Scotts and Oxford.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3561 8108 3576 8122 3592 8104 3571 8084
TIME...MOT...LOC 2030Z 232DEG 5KT 3573 8108

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

WJM

Special Weather Statement
National Weather Service Greenville-Spartanburg SC
435 PM EDT Wed Aug 11 2021

SCZ010-112100-
Anderson SC-
435 PM EDT Wed Aug 11 2021

...A strong thunderstorm will impact portions of south central
Anderson County through 500 PM EDT...

At 435 PM EDT, Doppler radar was tracking a strong thunderstorm 6
miles south of Anderson, or near Homeland Park. This storm was nearly
stationary.

HAZARD...Winds in excess of 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Anderson, Homeland Park, Iva, Starr, Anderson Airport and Broadway
Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3431 8279 3433 8279 3435 8281 3447 8280
      3451 8258 3436 8251 3431 8259 3428 8277
TIME...MOT...LOC 2035Z 350DEG 3KT 3443 8268

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

TDP

Special Weather Statement
National Weather Service Greenville-Spartanburg SC
451 PM EDT Wed Aug 11 2021

SCZ006-112115-
Greater Greenville SC-
451 PM EDT Wed Aug 11 2021

...A THUNDERSTORM WITH INTENSE LIGHTNING WILL IMPACT SOUTHERN
GREENVILLE COUNTY UNTIL 515 PM EDT...

At 450 PM EDT, Doppler radar was tracking a thunderstorm with intense
lightning 13 miles south of Greenville Downtown, or near West Pelzer,
moving south at 10 mph.

Locations to be impacted include...
Piedmont and Fork Shoals.

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.

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 3459 8242 3462 8245 3464 8245 3467 8247
      3468 8246 3471 8247 3471 8246 3472 8247
      3475 8246 3470 8227 3460 8229 3457 8232
      3456 8242
TIME...MOT...LOC 2050Z 016DEG 9KT 3466 8241

TDP

Special Weather Statement
National Weather Service Greenville-Spartanburg SC
454 PM EDT Wed Aug 11 2021

NCZ068-508-112130-
Greater Rutherford NC-Cleveland NC-
454 PM EDT Wed Aug 11 2021

...A strong thunderstorm will impact portions of northeastern
Rutherford and west central Cleveland Counties through 530 PM EDT...

At 453 PM EDT, Doppler radar was tracking a strong thunderstorm 6
miles northeast of Forest City, or near Bostic. This storm was nearly
stationary.

HAZARD...Winds in excess of 40 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Polkville, Ellenboro, Bostic, Kingstown, Sunshine and Caroleen.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3528 8179 3543 8192 3557 8178 3536 8158
TIME...MOT...LOC 2053Z 232DEG 1KT 3540 8179

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

WJM

Special Weather Statement
National Weather Service Greenville-Spartanburg SC
502 PM EDT Wed Aug 11 2021

NCZ036-057-112130-
Rowan NC-Iredell NC-
502 PM EDT Wed Aug 11 2021

...A strong thunderstorm will impact portions of east central Iredell
and northwestern Rowan Counties through 530 PM EDT...

At 501 PM EDT, Doppler radar was tracking a strong thunderstorm 10
miles southeast of Statesville, or near Cleveland. This storm was
nearly stationary.

HAZARD...Winds in excess of 40 mph and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Statesville, Cleveland, Piedmont Research Station, Mount Ulla, Cool
Springs and Woodleaf.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3567 8052 3560 8073 3574 8086 3589 8072
      3587 8071 3585 8071 3585 8070 3586 8070
      3586 8069
TIME...MOT...LOC 2101Z 232DEG 1KT 3572 8073

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...40 MPH

WJM