"Severe Coastal Storm Threatens Philadelphia with Heavy Rain and Flooding"

The Philadelphia region is expected to be impacted by a coastal storm from Sunday into Monday, bringing heavy rain, flooding, and strong winds. The rain will start gradually on Sunday, becoming widespread by dinner time and intensifying during the evening. The heaviest rain is expected from midnight to 6 a.m. on Monday, with rain still falling during the morning commute. By Monday afternoon, most of the rain will have moved north, but a few showers may still be possible. Flooding is more likely due to the wet soils from last week's rain. There is also a chance of showers and possibly snow overnight on Monday, but no accumulation is expected at this time.