Post-Tropical Cyclone Helene Discussion Number  21
NWS Weather Prediction Center College Park MD   AL092024
1000 AM CDT Sat Sep 28 2024

KEY MESSAGES:

1. Widespread significant river flooding is ongoing across the
southern Appalachians, some of which are record-breaking.
Conditions will continue to improve today, following the 
catastrophic flooding over the past two days.

2. There is a possibility of long-duration power outages in
portions of the southeast U.S. If you use a generator, be sure it
is placed outside at least 20 feet away from doors, windows, and
garages to avoid deadly carbon monoxide poisoning.

3. Use caution after the system passes as deadly hazards remain
including downed power lines and flooded areas.


FORECAST POSITIONS AND MAX WINDS

INIT  28/1500Z 36.6N  87.4W   15 KT  15 MPH...POST-TROP/EXTRATROP
12H  29/0000Z 36.5N  87.0W   15 KT  15 MPH...POST-TROP/EXTRATROP
24H  29/1200Z 36.3N  86.5W   15 KT  15 MPH...POST-TROP/EXTRATROP
36H  30/0000Z 36.1N  86.0W   15 KT  15 MPH...POST-TROP/EXTRATROP
48H  30/1200Z...DISSIPATED

$$
Forecaster Gallina