Overview

• A broad ridge is driving a largely sunny, unseasonably warm stretch through at least Tuesday for many regions, with some valley fog early and a more fall-like cooldown midweek in several markets.
• Hurricane Humberto remains a powerful major storm well offshore, with swells likely to produce high surf and rip currents along parts of the East Coast and potential impacts to Bermuda later this week.
• Tropical Depression Nine is expected to become Tropical Storm Imelda near the Bahamas, where tropical storm warnings are posted, and a watch has been issued along part of Florida’s east coast.
• Guidance increasingly favors an eastward turn that keeps Imelda offshore as Humberto exerts influence consistent with a Fujiwhara-type interaction, but uncertainty persists on the exact track and timing.
• Coastal sections of the Carolinas and Georgia could see heavy rain bands, gusty winds and localized flooding Monday–Tuesday, while inland areas such as East Tennessee and much of the Ohio Valley and Mid-Atlantic stay mostly dry.