Overview
- Frost advisories and freeze warnings were in effect Saturday morning across parts of central Pennsylvania and the Mid-Atlantic, with renewed frost risk expected again Sunday night.
- High pressure is keeping the weekend largely dry but cooler than normal from the Mid-Atlantic to New England, with daytime highs mostly in the 50s and low 60s.
- Hurricane Melissa strengthened Saturday and is forecast to rapidly intensify into a major hurricane, with the National Hurricane Center warning of life-threatening flooding and landslides in Jamaica and parts of Hispaniola early next week.
- Forecasters are tracking a potential coastal low Wednesday–Thursday that could bring rain, gusty winds and coastal flooding to sections of the East Coast, though model guidance still disagrees on the track and timing.
- Some outlets note the system may clear by Friday, but Halloween conditions remain uncertain, and in Maryland any midweek rain could help ongoing drought as residents protect sensitive plants and winterize outdoor items.