Alert archive / North Carolina / Special Weather Statements in 2018
Special Weather Statement, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this special weather statement at Aug 12, 2018, 4:11 PM EDT for Polk County, North Carolina. It was in force for 34 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 12, 2018, 4:11 PM EDT (20:11 UTC)
- Expired
- Aug 12, 2018, 4:45 PM EDT
- In force
- 34 min
- Issued by
- NWS Greenville-Spartanburg, SC
County Polk County, NC
The radar
The Greer radar (KGSP), 59 km from the middle of the area, began a volume at 20:13 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, 8.2 hours before the alert went out and 219 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
- 445 J/kg
- Mixed-layer CIN
- -77 J/kg
- Mixed-layer LCL
- 1179 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- -7 m²/s²
- 0-3 km storm-relative helicity
- 11 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.2
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 12, 3:02 PM EDT, 1 hour 9 minutes earlier.
Area forecast discussion, Aug 12, 3:02 PM EDT, 1 hour 9 minutes before
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</html>Hazardous weather outlook, Aug 12, 4:30 AM EDT, 11 hours 41 minutes before
Hazardous Weather Outlook National Weather Service Greenville-Spartanburg SC 430 AM EDT Sun Aug 12 2018 GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065- 068>072-082-501>510-SCZ001>014-019-130830- 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- 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-Chester-Greenwood- 430 AM EDT Sun Aug 12 2018 This Hazardous Weather Outlook is for northeast Georgia, piedmont North Carolina, western North Carolina and upstate South Carolina. .DAY ONE...Today and tonight. Scattered to numerous thunderstorms are expected to develop this afternoon and evening. A few of these storms could become severe with damaging wind gusts. Isolated flooding will also be possible. Any storm will be capable of producing strong wind gusts, heavy rainfall, and cloud to ground lightning. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Hazardous weather is not expected at this time. .SPOTTER INFORMATION STATEMENT... Spotters are requested to forward any reports of large hail, damaging winds, tornadoes, or flash flooding to our office.
In the hours before
Special weather statement, Aug 12, 2:57 PM EDT, 1 hour 14 minutes before
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</html>Special weather statement, Aug 12, 3:07 PM EDT, 1 hour 4 minutes before
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</html>Special weather statement, Aug 12, 3:44 PM EDT, 27 minutes before
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</html>Special weather statement, Aug 12, 4:06 PM EDT, 5 minutes before
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</html>Special weather statement, Aug 12, 4:11 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 12, 12:50 PM EDT | Special Weather Statement | GSP | Caldwell | 40 min |
| Aug 12, 2:53 PM EDT | Areal Flood Advisory | GSP | Caldwell | 112 min |
| Aug 12, 2:57 PM EDT | Special Weather Statement | GSP | Iredell | 33 min |
| Aug 12, 3:07 PM EDT | Special Weather Statement | GSP | Alexander | 23 min |
| Aug 12, 3:26 PM EDT | Special Weather Statement | GSP | Davie | 34 min |
| Aug 12, 3:44 PM EDT | Special Weather Statement | GSP | Caldwell | 31 min |
| Aug 12, 3:58 PM EDT | Areal Flood Advisory | GSP | Caldwell | 80 min |
| Aug 12, 4:06 PM EDT | Special Weather Statement | GSP | Henderson | 24 min |
| Aug 12, 4:27 PM EDT | Special Weather Statement | GSP | Catawba | 33 min |
| Aug 12, 4:31 PM EDT | Special Weather Statement | GSP | Henderson | 14 min |
| Aug 12, 4:51 PM EDT | Special Weather Statement | GSP | Polk | 24 min |
| Aug 12, 5:00 PM EDT | Special Weather Statement | GSP | Catawba | 15 min |
| Aug 12, 5:14 PM EDT | Special Weather Statement | GSP | Polk | 46 min |
| Aug 12, 5:16 PM EDT | Special Weather Statement | GSP | Burke | 29 min |
| Aug 12, 5:32 PM EDT | Special Weather Statement | GSP | Henderson | 28 min |
| Aug 12, 5:48 PM EDT | Special Weather Statement | GSP | Rowan | 27 min |
| Aug 12, 5:56 PM EDT | Special Weather Statement | GSP | Cabarrus | 19 min |
| Aug 12, 6:01 PM EDT | Special Weather Statement | GSP | Polk | 29 min |
| Aug 12, 6:19 PM EDT | Areal Flood Advisory | GSP | Cabarrus | 56 min |
| Aug 12, 6:23 PM EDT | Special Weather Statement | GSP | Cabarrus | 37 min |
| Aug 12, 6:25 PM EDT | Special Weather Statement | GSP | Davidson | 20 min |
| Aug 12, 6:41 PM EDT | Severe Thunderstorm Warning | GSP | Rowan | 34 min |
| Aug 12, 7:13 PM EDT | Areal Flood Advisory | GSP | Cabarrus | 62 min |
| Aug 12, 7:50 PM EDT | Special Weather Statement | GSP | Cleveland | 25 min |
| Aug 12, 7:30 PM EDT | Special Weather Statement | GSP | Chester | 15 min |
| Aug 12, 2:21 PM EDT | Special Weather Statement | GSP | Habersham | 24 min |
Nearby
Special Weather Statements in North Carolina, 2018Every special weather statement in 2018
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.