Overview
- A strengthening low and cold front will move into the country late Thursday with the main impacts arriving Friday and Saturday, according to regional forecasts.
- South Florida is forecast to receive heavy rainfall of roughly 3–5 inches in places with a Level 1 flash‑flood threat and frequent thunderstorms that could cause localized flooding.
- The Northeast, Great Lakes and Mid‑Atlantic are expected to see steady rain and gusty winds often in the 30–40+ mph range that could down branches and cause isolated power outages.
- Higher elevations from the Appalachians to New England may see early season snow or graupel with little accumulation at lower levels, while interior areas face a sharp temperature drop and pockets of frost by Saturday night.
- Coastal and marine interests should prepare for rough surf, dangerous rip currents and hazardous boating conditions with seas rising offshore and onshore winds strengthening into the weekend.