Alert archive / North Carolina / Flash Flood Watches in 2018
Flash Flood Watch 10, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this flash flood watch at Sep 26, 2018, 2:50 PM EDT for 9 counties in North Carolina. It took effect at Sep 26, 2018, 3:00 PM EDT. It was in force for 32 hr.
The area
The counties it named.
The facts
- Issued
- Sep 26, 2018, 2:50 PM EDT (18:50 UTC)
- In effect from
- Sep 26, 2018, 3:00 PM EDT
- Expired
- Sep 27, 2018, 10:31 PM EDT
- In force
- 32 hr
- Issued by
- NWS Greenville-Spartanburg, SC
- Flood severity
- None
Counties Avery County, NC, Graham County, NC, Haywood County, NC, Jackson County, NC, Macon County, NC, Madison County, NC, Mitchell County, NC, Swain County, NC, Yancey County, NC
The radar
The Knoxville radar (KMRX), 76 km from the middle of the area, began a volume at 18:51 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, 6.8 hours before the alert went out and 274 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
- 45 J/kg
- Mixed-layer CIN
- -126 J/kg
- Mixed-layer LCL
- 848 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 111 m²/s²
- 0-3 km storm-relative helicity
- 75 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this flash flood watch 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 flash flood watch went out at Sep 26, 1:55 PM EDT, 55 minutes earlier.
Area forecast discussion, Sep 26, 1:55 PM EDT, 55 minutes before
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</html>Hazardous weather outlook, Sep 26, 6:35 AM EDT, 8 hours 15 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 |
|---|---|---|---|---|
| Sep 26, 3:45 PM EDT | Special Weather Statement | GSP | Lincoln | 45 min |
| Sep 26, 4:15 PM EDT | Special Weather Statement | GSP | Polk, Rutherford | 45 min |
| Sep 26, 4:46 PM EDT | Special Weather Statement | GSP | Davie | 29 min |
| Sep 26, 4:53 PM EDT | Special Weather Statement | GSP | Anderson | 52 min |
| Sep 26, 5:13 PM EDT | Severe Thunderstorm Warning | GSP | Abbeville, Anderson, Greenville, Laurens | 47 min |
Nearby
Flash Flood Watches in North Carolina, 2018Every flash flood watch 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.