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WTNT44 KWNH 110834
TCDAT4
Post-tropical cyclone Isaias discussion number 19
NWS Weather Prediction Center College Park MD AL092026
400 AM CDT Sunday, October 11, 2026
Key Messages:
1. Heavy rains associated with post-tropical cyclone Isaias will
Spread into the central Appalachians and mid-Atlantic on Sunday.
Isolated flash: and there may be urban flooding.
2. Strong gusts continue to pose a surface threat
Southeastern United States today, especially near the South
Appalachians. Scattered power outages and fallen trees and
Power lines may occur, with the highest risk in elevated terrain.
3. Waves from Isias will continue to affect a large part of the gulf and
Southeast Atlantic coast of the United States, Mexico, and
West Cuba this weekend. These swellings may cause
Surfing and rip current conditions are life-threatening. Please consult products from your local weather office.
4. A few tornadoes are possible today across the Piedmont and
Coastal Plain of Virginia and North Carolina.
Forecast Positions and Maximum Winds
INIT 11/0900Z 35.4N 85.9W 20 KT 25 MPH...POST TROPICAL
12H 11/1800Z 37.1N 82.8W 20 KT 25 MPH...POST-TROP/INLAND
24H 12/0600Z 38.4N 77.7W 20 KT 25 MPH...POST-TROP/INLAND
36H 12/1800Z...dissipated
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