Post-tropical discussion on Isaias forecast number 20

Post-tropical discussion on Isaias forecast number 20

Issued at 1100 AM EDT Sunday, October 11, 2026 000

WTNT44 KWNH 111500

TCDAT4

Post tropical cyclone Isaias discussion number 20

NWS Weather Prediction Center College Park MD AL092026

1100 AM EDT Sunday, October 11, 2026

Key Messages:

1. Areas of heavy rain will continue across parts of the country

Central Appalachians and Mid-Atlantic today, with localized flash: and possible urban flooding. River flooding continues in the west

North Carolina.

2. Waves from Isias will continue to affect a large part of the gulf and

The southeastern Atlantic coast of the United States today. these

Swelling can cause life-threatening entrainment and rip current

conditions. Please consult products from your local weather office.

3. A few tornadoes are possible today across the Piedmont and

Coastal Plain of Virginia and North Carolina.

FORECAST LOCATIONS AND MAX WINDS INIT 11/1500Z 37.5N 84.0W 20 KT 25 MPH...POST-TROP/INLAND

12H 12/0000Z 38.8N 80.2W 20 KT 25 MPH...POST-TROP/INLAND

24H 12/1200Z...dissipated

The prophet Chenard