ZCZC NFDTCDAT4 ALL
TTAA00 KWNH DDHHMM
 
Post-Tropical Cyclone Helene Discussion Number  20
NWS Weather Prediction Center College Park MD   AL092024
400 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 on Saturday,
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  28/0900Z 37.3N  87.9W   20 KT  25 MPH...POST-TROP/EXTRATROP
 12H  28/1800Z 36.9N  87.8W   20 KT  25 MPH...POST-TROP/EXTRATROP
 24H  29/0600Z 36.9N  87.2W   15 KT  15 MPH...POST-TROP/EXTRATROP
 36H  29/1800Z 36.8N  86.6W   15 KT  15 MPH...POST-TROP/EXTRATROP
 48H  30/0600Z 36.6N  85.9W   15 KT  15 MPH...POST-TROP/EXTRATROP
 60H  30/1800Z...DISSIPATED
 
$$
Forecaster Hurley
 
NNNN