Severe Thunderstorm Warning 90, NWS Greenville-Spartanburg, SC

Issued

Aug 10, 2021, 6:24 PM EDT (22:24 UTC)

Expired

Aug 10, 2021, 7:15 PM EDT

In force

51 min

Issued by

NWS Greenville-Spartanburg, SC

Area

Storm-based polygon

Hail

1.0 in

Wind

60.0 mph

Counties Graham County, NC, Swain County, NC

The Knoxville radar (KMRX), 93 km from the middle of the area, began a volume at 22:26 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.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

531 
WUUS52 KGSP 102224
SVRGSP
NCC075-173-102315-
/O.NEW.KGSP.SV.W.0090.210810T2224Z-210810T2315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Greenville-Spartanburg SC
624 PM EDT Tue Aug 10 2021

The National Weather Service in Greenville-Spartanburg has issued a

* Severe Thunderstorm Warning for...
  Southwestern Swain County in western North Carolina...
  Graham County in western North Carolina...

* Until 715 PM EDT.

* At 624 PM EDT, severe thunderstorms were located along a line
  extending from 11 miles north of Robbinsville to 7 miles west of
  Andrews, moving east at 30 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Robbinsville, Town Of Santeetlah, Smoky Mountains-Fontana Area,
  Lake Santeetlah, Fontana Lake, Fontana Village, Smoky
  Mountains-Twentymile Creek, Stecoah, Nantahala and Cheoah.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

If on or near Fontana Lake, get away from the water and move indoors 
or inside a vehicle. Remember, lightning can strike out to 15 miles 
from the parent thunderstorm. If you can hear thunder, you are close 
enough to be struck by lightning. Move to safe shelter now!  Do not 
be caught on the water in a thunderstorm.

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 3537 8401 3541 8402 3544 8399 3547 8392
      3552 8388 3553 8382 3556 8377 3557 8363
      3558 8360 3556 8358 3556 8355 3540 8358
      3529 8362 3528 8368 3525 8370 3524 8376
      3525 8385 3522 8396 3523 8400 3535 8404
TIME...MOT...LOC 2224Z 256DEG 24KT 3547 8388 3523 8396 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

CAC

486 
WWUS52 KGSP 102247
SVSGSP

Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
647 PM EDT Tue Aug 10 2021

NCC173-102256-
/O.CAN.KGSP.SV.W.0090.000000T0000Z-210810T2315Z/
Swain NC-
647 PM EDT Tue Aug 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN SWAIN COUNTY IS
CANCELLED...

The storms which prompted the warning have weakened. Therefore, the 
warning has been cancelled.

LAT...LON 3539 8397 3541 8382 3540 8359 3537 8359
      3534 8362 3532 8369 3530 8370 3528 8368
      3525 8370 3526 8372 3524 8375 3526 8380
      3525 8385 3522 8396 3523 8400 3535 8404
TIME...MOT...LOC 2246Z 256DEG 24KT 3550 8373 3526 8381 

$$

NCC075-102315-
/O.CON.KGSP.SV.W.0090.000000T0000Z-210810T2315Z/
Graham NC-
647 PM EDT Tue Aug 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EDT
FOR GRAHAM COUNTY...

At 646 PM EDT, severe thunderstorms were located along a line
extending from 16 miles west of Bryson City to 4 miles south of
Robbinsville, moving east at 30 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Robbinsville, Town Of Santeetlah, Lake Santeetlah, Stecoah, Cheoah
and Nantahala.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 these storms.
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.

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

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 3539 8397 3541 8382 3540 8359 3537 8359
      3534 8362 3532 8369 3530 8370 3528 8368
      3525 8370 3526 8372 3524 8375 3526 8380
      3525 8385 3522 8396 3523 8400 3535 8404
TIME...MOT...LOC 2246Z 256DEG 24KT 3550 8373 3526 8381 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

CAC

Severe Thunderstorm Warnings in North Carolina, 2021Every severe thunderstorm warning in 2021

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.