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WTNT44 KWNH 110834
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Post-Tropical Cyclone Isaias Discussion Number 19
NWS Weather Prediction Center College Park MD AL092026
400 AM CDT Sun Oct 11 2026

Key Messages:

1. Heavy rainfall associated with Post-Tropical Cyclone Isaias will
spread into the Central Appalachians and Mid-Atlantic on Sunday.
Isolated flash and urban flooding will be possible.

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
power-lines may occur, with the risk highest in elevated terrain.

3. Swells from Isaias will continue to affect much of the Gulf and Southeastern Atlantic 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 today across the Piedmont and
Coastal Plain of Virginia and North Carolina.


FORECAST POSITIONS AND MAX 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

$$
Forecaster Gallina
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--- scorpsmtpd
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