Tropical Cyclone Discussion

760
WTNT44 KWNH 110235
TCDAT4
 
Post-Tropical Cyclone Isaias Discussion Number  18
NWS Weather Prediction Center College Park MD   AL092026
1000 PM CDT Sat Oct 10 2026
 
Key Messages:
 
1. Heavy rainfall associated with Post-Tropical Cyclone Isaias will
continue across the Southern Appalachians and Southeast tonight.
Considerable flash and urban flooding will be possible. Landslides
are also possible across the Southern Appalachians.
 
2. Strong wind gusts continue to pose a threat across the
southeastern United States today, particularly near the southern
Appalachians. Scattered power outages and downed trees and
powerlines may occur, with the risk highest in elevated terrain.
 
3. Swells from Isaias will continue to affect much of the Gulf
coasts of the United States, Mexico, and western Cuba this weekend.
These swells are likely to cause life-threatening surf and rip
current conditions. Please consult products from your local weather
office.
 
4. A couple of tornadoes are possible tonight across eastern Georgia
and the Carolinas.
 
 
FORECAST POSITIONS AND MAX WINDS
 
INIT  11/0300Z 35.0N  86.7W   20 KT  25 MPH...POST-TROPICAL
 12H  11/1200Z 36.8N  84.6W   20 KT  25 MPH...POST-TROP/INLAND
 24H  12/0000Z 38.5N  80.5W   20 KT  25 MPH...POST-TROP/INLAND
 36H  12/1200Z...DISSIPATED