Alert archive / North Carolina / Special Weather Statements in 2021
Special Weather Statement, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this special weather statement at Aug 13, 2021, 3:44 PM EDT for Polk County, North Carolina. It was in force for 31 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
- Aug 13, 2021, 3:44 PM EDT (19:44 UTC)
- Expired
- Aug 13, 2021, 4:15 PM EDT
- In force
- 31 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Hail
- 0.25 in
- Wind
- 40
County Polk County, NC
The radar
The Greer radar (KGSP), 63 km from the middle of the area, began a volume at 19:46 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
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 7.7 hours before the alert went out and 222 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.
- Mixed-layer CAPE
- 726 J/kg
- Mixed-layer CIN
- -141 J/kg
- Mixed-layer LCL
- 1319 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 21 m²/s²
- 0-3 km storm-relative helicity
- 36 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>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 Aug 13, 2:31 PM EDT, 1 hour 13 minutes earlier.
Area forecast discussion, Aug 13, 2:31 PM EDT, 1 hour 13 minutes before
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</html>Hazardous weather outlook, Aug 13, 6:18 AM EDT, 9 hours 26 minutes before
Hazardous Weather Outlook National Weather Service Greenville-Spartanburg SC 618 AM EDT Fri Aug 13 2021 NCZ033-048>053-058-059-062>065-501>510-141030- Avery-Madison-Yancey-Mitchell-Swain-Haywood-Buncombe-Graham- Northern Jackson-Macon-Southern Jackson-Transylvania-Henderson- Caldwell Mountains-Greater Caldwell-Burke Mountains-Greater Burke- McDowell Mountains-Eastern McDowell-Rutherford Mountains- Greater Rutherford-Polk Mountains-Eastern Polk- 618 AM EDT Fri Aug 13 2021 This Hazardous Weather Outlook is for western North Carolina. .DAY ONE...Today and tonight. Scattered thunderstorms will develop across the North Carolina mountains and foothills this afternoon. Along with cloud to ground lightning, a couple of these storms could become quite strong and produce large hail and damaging outflow winds. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. The remnants of tropical cyclone Fred may interact with an old frontal boundary to produce heavy rainfall early next week. Altogether, an increasing threat of localized flash flooding is expected over the coming days, especially in areas that receive multiple rounds of heavy rainfall. .SPOTTER INFORMATION STATEMENT... None. GAZ010-017-018-026-028-029-NCZ035>037-056-057-068>072-082-SCZ001>014- 019-141030- Rabun-Habersham-Stephens-Franklin-Hart-Elbert-Alexander-Iredell- Davie-Catawba-Rowan-Cleveland-Lincoln-Gaston-Mecklenburg-Cabarrus- Union NC-Oconee Mountains-Pickens Mountains-Greenville Mountains- Greater Oconee-Greater Pickens-Greater Greenville-Spartanburg- Cherokee-York-Anderson-Abbeville-Laurens-Union SC-Chester-Greenwood- 618 AM EDT Fri Aug 13 2021 This Hazardous Weather Outlook is for northeast Georgia, piedmont North Carolina and upstate South Carolina. .DAY ONE...Today and tonight. Isolated thunderstorms will develop across the Piedmont of the Carolinas and northeast Georgia this afternoon. The main threat will be cloud to ground lightning. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. The remnants of tropical cyclone Fred may interact with an old frontal boundary to produce heavy rainfall early next week. Altogether, an increasing threat of localized flash flooding is expected over the coming days, especially in areas that receive multiple rounds of heavy rainfall. .SPOTTER INFORMATION STATEMENT... None. Krentz
In the hours before
Special weather statement, Aug 13, 1:05 PM EDT, 2 hours 39 minutes before
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</html>Special weather statement, Aug 13, 1:29 PM EDT, 2 hours 15 minutes before
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</html>Special weather statement, Aug 13, 3:44 PM EDT, 0 minutes before
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</html>The office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 13, 1:05 PM EDT | Special Weather Statement | GSP | Caldwell | 25 min |
| Aug 13, 1:29 PM EDT | Special Weather Statement | GSP | Avery | 31 min |
| Aug 13, 2:37 PM EDT | Special Weather Statement | GSP | Henderson | 23 min |
| Aug 13, 4:23 PM EDT | Special Weather Statement | GSP | Buncombe | 37 min |
| Aug 13, 5:01 PM EDT | Special Weather Statement | GSP | Yancey | 29 min |
| Aug 12, 8:13 PM EDT | Special Weather Statement | GSP | Spartanburg | 32 min |
| Aug 13, 7:46 PM EDT | Special Weather Statement | GSP | York | 29 min |
Nearby
Special Weather Statements in North 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.