Post-Tropical Cyclone Isaias Forecast Discussion Number 16

Issued at 1000 AM CDT Sat Oct 10 2026 <pre>000 WTNT44 KWNH 101459 TCDAT4 Post-Tropical Cyclone Isaias Discussion Number 16 NWS Weather Prediction Center College Park MD AL092026 1000 AM CDT Sat Oct 10 2026 Key Messages: 1. Heavy rainfall associated with post-tropical cyclone Isaias will continue across the Southern Appalachians and Southeast today. 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, including Georgia, the southern Appalachians, and extending west through much of central and northern Alabama, Mississippi, and Tennessee. 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 today across eastern Georgia and the Carolinas. FORECAST POSITIONS AND MAX WINDS INIT 10/1500Z 32.8N 86.8W 30 KT 35 MPH...POST-TROP/INLAND 12H 11/0000Z 34.0N 87.4W 30 KT 35 MPH...POST-TROP/INLAND 24H 11/1200Z 36.7N 85.5W 25 KT 30 MPH...POST-TROP/INLAND 36H 12/0000Z 38.3N 81.0W 20 KT 25 MPH...POST-TROP/INLAND 48H 12/1200Z...DISSIPATED $$ Forecaster Chenard</pre>

Publication

NHC Atlantic Tropical Cyclone RSS · Port/Shipping/Logistics

Published

10th October 2026

Original report

nhc.noaa.gov

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