NWS WPC:
"SUMMARY...Life-threatening flash flooding and the likelihood of catastrophic impacts to continue across much of the southern Appalachians through at least early this afternoon with an
additional 2-4" of rain.
...
The only positive news is that Helene continues to race north at
30 mph (per NHC) and lead to a quick exit of this extreme
rainfall, with intense rates ending across Upstate SC first by 14Z
and western NC by around 16Z. However, this region will also take
the brunt of the tropical moisture surge and the highest
additional totals. "
https://www.wpc.ncep.noaa.gov/metwatch/metwatch_mpd_multi.php?md=1076
