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 3, 2021, 6:21 PM EDT for Macon County, North Carolina. It was in force for 39 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 3, 2021, 6:21 PM EDT (22:21 UTC)
- Expired
- Aug 3, 2021, 7:00 PM EDT
- In force
- 39 min
- Issued by
- NWS Greenville-Spartanburg, SC
County Macon County, NC
The radar
The Knoxville radar (KMRX), 97 km from the middle of the area, began a volume at 22:25 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, 10.4 hours before the alert went out and 237 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
- 178 J/kg
- Mixed-layer CIN
- -74 J/kg
- Mixed-layer LCL
- 932 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- 15 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
670
WWUS82 KGSP 032221
SPSGSP
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
621 PM EDT Tue Aug 3 2021
NCZ062-032300-
Macon NC-
621 PM EDT Tue Aug 3 2021
...HEAVY RAIN SHOWERS WILL IMPACT NORTH CENTRAL MACON COUNTY UNTIL
700 PM EDT...
At 618 PM EDT, Doppler radar was tracking a series of heavy rain
showers 8 miles north of Franklin. These showers were nearly
stationary or redeveloping in place.
Locations to be impacted include...
Cowee and Burningtown. Rapid rises are expected along Cowee Creek,
Shepherd Creek, and tributaries to the Little Tennessee River in
the northeast part of Macon County.
Very heavy rainfall rates of one inch per hour will be possible in
these areas. This will lead to deep ponding of water in low-lying
and poor drainage areas.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall may flood areas with poor drainage, such as
ditches and underpasses. Avoid these areas and do not cross flooded
roads. Water levels of small streams may also rise rapidly. Seek
higher ground if threatened by flood waters.
&&
LAT...LON 3530 8346 3533 8343 3532 8342 3533 8340
3533 8333 3530 8332 3527 8332 3525 8330
3524 8330 3523 8349 3530 8351
TIME...MOT...LOC 2218Z 169DEG 2KT 3530 8342
$$
HGThe office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 2:18 PM EDT | Special Weather Statement | GSP | Jackson | 42 min |
| Aug 3, 7:48 PM EDT | Special Weather Statement | GSP | Jackson | 42 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.