Alert archive / North Carolina / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 256, NWS Greenville-Spartanburg, SC

August 30, 2024Graham County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 30, 2024, 2:42 PM EDT for Graham County, North Carolina. It was in force for 22 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 30, 2024, 2:42 PM EDT (18:42 UTC)
Expired: Aug 30, 2024, 3:04 PM EDT
In force: 22 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Graham County, NC

The radar

The Knoxville radar (KMRX), 99 km from the middle of the area, began a volume at 18:42 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, 6.7 hours before the alert went out and 228 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: 1219 J/kg
Mixed-layer CIN: -72 J/kg
Mixed-layer LCL: 1035 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: -10 m²/s²
0-3 km storm-relative helicity: -20 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Aug 30, 2:37 PM EDT, 5 minutes earlier.

Area forecast discussion, Aug 30, 2:37 PM EDT, 5 minutes before

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Hazardous weather outlook, Aug 30, 7:47 AM EDT, 6 hours 55 minutes before

Hazardous Weather Outlook
National Weather Service Greenville-Spartanburg SC
747 AM EDT Fri Aug 30 2024

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ008>014-019-101>109-311200-
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-Cherokee-York-
Anderson-Abbeville-Laurens-Union SC-Chester-Greenwood-
Oconee Mountains-Pickens Mountains-Greenville Mountains-
Greater Oconee-Greater Pickens-Central Greenville-
Southern Greenville-Northern Spartanburg-Southern Spartanburg-
747 AM EDT Fri Aug 30 2024

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

.DAY ONE...Today and tonight.

Scattered showers and thunderstorms will develop this afternoon and
evening. A few storms could become severe with damaging winds and
heavy rainfall.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Hazardous weather is not expected at this time.

.SPOTTER INFORMATION STATEMENT...

None.

In the hours before

Special weather statement, Aug 30, 1:37 PM EDT, 1 hour 5 minutes before

Special Weather Statement
National Weather Service Greenville-Spartanburg SC
137 PM EDT Fri Aug 30 2024

NCZ064-301815-
Transylvania NC-
137 PM EDT Fri Aug 30 2024

...A STRONG THUNDERSTORM WILL IMPACT SOUTHWESTERN TRANSYLVANIA COUNTY
THROUGH 215 PM EDT...

At 137 PM EDT, Doppler radar was tracking a strong thunderstorm 14
miles southwest of Brevard, or near Lake Toxaway. This storm was
nearly stationary.

HAZARD...Wind gusts up to 50 mph and pea size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Rosman, Lake Toxaway, Gorges State Park, and Sapphire.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3508 8304 3513 8298 3515 8298 3515 8299
      3516 8300 3515 8275 3508 8278 3509 8279
      3503 8297 3503 8301 3504 8304 3505 8304
      3505 8306
TIME...MOT...LOC 1737Z 286DEG 2KT 3511 8293

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH

TW

Special weather statement, Aug 30, 1:48 PM EDT, 54 minutes before

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Special weather statement, Aug 30, 1:49 PM EDT, 53 minutes before

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Special weather statement, Aug 30, 1:57 PM EDT, 45 minutes before

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Local storm report, Aug 30, 2:12 PM EDT, 30 minutes before

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Special weather statement, Aug 30, 2:33 PM EDT, 9 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
Aug 30, 12:41 PM EDT	Special Weather Statement	GSP	Transylvania	34 min
Aug 30, 12:50 PM EDT	Special Weather Statement	GSP	Jackson	25 min
Aug 30, 1:00 PM EDT	Severe Thunderstorm Warning	GSP	Jackson, Macon	30 min
Aug 30, 1:37 PM EDT	Special Weather Statement	GSP	Transylvania	38 min
Aug 30, 1:40 PM EDT	Severe Thunderstorm Warning	GSP	Transylvania	28 min
Aug 30, 1:48 PM EDT	Special Weather Statement	GSP	Avery	27 min
Aug 30, 1:49 PM EDT	Special Weather Statement	GSP	Buncombe	26 min
Aug 30, 1:57 PM EDT	Special Weather Statement	GSP	Haywood	33 min
Aug 30, 2:23 PM EDT	Severe Thunderstorm Warning	GSP	Buncombe	24 min
Aug 30, 2:33 PM EDT	Special Weather Statement	GSP	Transylvania	27 min
Aug 30, 2:37 PM EDT	Severe Thunderstorm Warning	GSP	Transylvania	20 min
Aug 30, 2:56 PM EDT	Severe Thunderstorm Warning	GSP	Henderson	46 min
Aug 30, 3:13 PM EDT	Special Weather Statement	GSP	McDowell	32 min
Aug 30, 3:33 PM EDT	Severe Thunderstorm Warning	GSP	McDowell	26 min
Aug 30, 3:38 PM EDT	Severe Thunderstorm Warning	GSP	Burke	45 min
Aug 30, 3:39 PM EDT	Special Weather Statement	GSP	Transylvania	36 min
Aug 30, 3:52 PM EDT	Severe Thunderstorm Warning	GSP	Burke, McDowell	32 min
Aug 30, 5:05 PM EDT	Special Weather Statement	GSP	Cabarrus	25 min
Aug 30, 5:39 PM EDT	Special Weather Statement	GSP	Cabarrus	36 min
Aug 30, 6:11 PM EDT	Special Weather Statement	GSP	Rowan	34 min
Aug 30, 6:13 PM EDT	Special Weather Statement	GSP	Davidson	32 min
Aug 30, 6:46 PM EDT	Special Weather Statement	GSP	Iredell	29 min
Aug 30, 6:50 PM EDT	Special Weather Statement	GSP	Iredell	25 min
Aug 30, 7:33 PM EDT	Special Weather Statement	GSP	Iredell	27 min
Aug 30, 7:55 PM EDT	Special Weather Statement	GSP	Mecklenburg	35 min
Aug 30, 7:57 PM EDT	Special Weather Statement	GSP	Union	48 min
Aug 30, 3:40 PM EDT	Special Weather Statement	GSP	Abbeville	35 min
Aug 30, 4:03 PM EDT	Special Weather Statement	GSP	Anderson	27 min
Aug 30, 4:10 PM EDT	Severe Thunderstorm Warning	GSP	Greenville	25 min
Aug 30, 4:41 PM EDT	Special Weather Statement	GSP	Greenville	34 min
Aug 30, 4:56 PM EDT	Special Weather Statement	GSP	Anderson	34 min
Aug 30, 4:59 PM EDT	Severe Thunderstorm Warning	GSP	Anderson	35 min
Aug 30, 5:41 PM EDT	Special Weather Statement	GSP	Pickens	34 min
Aug 30, 6:00 PM EDT	Special Weather Statement	GSP	Pickens	30 min
Aug 30, 12:33 PM EDT	Special Weather Statement	GSP	Rabun	27 min
Aug 30, 1:11 PM EDT	Special Weather Statement	GSP	Rabun	34 min
Aug 30, 5:51 PM EDT	Special Weather Statement	GSP	Hart	24 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2024 Every severe thunderstorm warning in 2024

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.