Alert archive / North Carolina / Flash Flood Warnings in 2021
Flash Flood Warning 12, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this flash flood warning at Aug 16, 2021, 4:59 AM EDT for Henderson County, Transylvania County, North Carolina. It was in force for 3 hr. 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 16, 2021, 4:59 AM EDT (08:59 UTC)
- Expired
- Aug 16, 2021, 8:00 AM EDT
- In force
- 3 hr
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Storm-based polygon
- Flood severity
- None
Counties Henderson County, NC, Transylvania County, NC
The radar
The Greer radar (KGSP), 60 km from the middle of the area, began a volume at 09:00 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 00:00Z, 9.0 hours before the alert went out and 268 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
- 919 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 972 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- 11 m²/s²
- 0-3 km storm-relative helicity
- 31 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
145
WGUS52 KGSP 160859
FFWGSP
NCC089-175-161200-
/O.NEW.KGSP.FF.W.0012.210816T0859Z-210816T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Greenville-Spartanburg SC
459 AM EDT Mon Aug 16 2021
The National Weather Service in Greenville-Spartanburg has issued a
* Flash Flood Warning for...
West Central Henderson County in western North Carolina...
Northeastern Transylvania County in western North Carolina...
* Until 800 AM EDT.
* At 459 AM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2 and 3 inches of rain
have fallen. Additional rainfall amounts up to 2 inches are
possible in the warned area. Flash flooding is ongoing or expected
to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Brevard, Mills River, Etowah, Looking Glass, Penrose, North
Transylvania, Little River In Transylvania County, Forge Mountain,
Horse Shoe and Connestee.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 3523 8282 3541 8270 3538 8255 3529 8256
3522 8265 3518 8271 3516 8275
FLASH FLOOD...RADAR INDICATED
$$
Krentz1 follow-up statement
568
WGUS72 KGSP 161021
FFSGSP
Flash Flood Statement
National Weather Service Greenville-Spartanburg SC
621 AM EDT Mon Aug 16 2021
NCC089-175-161200-
/O.CON.KGSP.FF.W.0012.000000T0000Z-210816T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Henderson NC-Transylvania NC-
621 AM EDT Mon Aug 16 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 8 AM EDT THIS MORNING
FOR WEST CENTRAL HENDERSON AND NORTHEASTERN TRANSYLVANIA COUNTIES...
At 621 AM EDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Between 2 and 3 inches of rain have
fallen. Flash flooding is ongoing or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Brevard, Mills River, Etowah, Looking Glass, Penrose, North
Transylvania, Little River In Transylvania County, Forge Mountain,
Horse Shoe and Connestee.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 3523 8282 3541 8270 3538 8255 3529 8256
3522 8265 3518 8271 3516 8275
FLASH FLOOD...RADAR INDICATED
$$
KrentzThe office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 15, 8:06 PM EDT | Special Weather Statement | GSP | Cleveland | 24 min |
| Aug 15, 8:07 PM EDT | Special Weather Statement | GSP | Transylvania | 23 min |
| Aug 15, 8:09 PM EDT | Special Weather Statement | GSP | McDowell | 36 min |
| Aug 15, 8:18 PM EDT | Special Weather Statement | GSP | Rutherford | 27 min |
| Aug 15, 8:30 PM EDT | Special Weather Statement | GSP | Catawba, Lincoln | 30 min |
| Aug 15, 8:53 PM EDT | Special Weather Statement | GSP | Transylvania | 52 min |
| Aug 15, 9:05 PM EDT | Special Weather Statement | GSP | Catawba | 25 min |
| Aug 15, 9:18 PM EDT | Special Weather Statement | GSP | McDowell | 27 min |
| Aug 15, 9:45 PM EDT | Special Weather Statement | GSP | Avery | 30 min |
| Aug 16, 2:52 AM EDT | Areal Flood Advisory | GSP | Buncombe, Haywood, Henderson, Jackson, Transylvania | 3 hr |
| Aug 16, 3:02 AM EDT | Flash Flood Warning | GSP | Haywood, Jackson, Transylvania | 5 hr |
| Aug 16, 4:39 AM EDT | Flash Flood Warning | GSP | Jackson, Transylvania | 3 hr |
| Aug 16, 7:43 AM EDT | Flash Flood Warning | GSP | Transylvania | 4 hr |
| Aug 16, 8:51 AM EDT | Special Weather Statement | GSP | Catawba | 39 min |
| Aug 16, 9:49 AM EDT | Special Weather Statement | GSP | Catawba, Lincoln | 41 min |
| Aug 16, 10:24 AM EDT | Flash Flood Warning | GSP | Catawba, Lincoln | 3 hr |
| Aug 16, 2:20 PM EDT | Flash Flood Watch | GSP | Avery, Buncombe, Burke, Caldwell, Graham, Haywood and 11 more | 40 hr |
| Aug 16, 3:46 PM EDT | Special Weather Statement | GSP | Gaston, Mecklenburg | 59 min |
| Aug 16, 4:46 PM EDT | Special Weather Statement | GSP | Transylvania | 59 min |
| Aug 16, 5:14 PM EDT | Special Weather Statement | GSP | Davie, Iredell | 76 min |
| Aug 16, 6:53 PM EDT | Areal Flood Advisory | GSP | Jackson, Transylvania | 3 hr |
Nearby
Flash Flood Warnings in North Carolina, 2021Every flash flood warning 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.