Subtropical Depression Threatens Northeastern U.S. This Weekend

As Hurricane Nigel churns in the Atlantic Ocean, weather forecasters are closely watching the possibility of a subtropical depression or storm forming off the Southeast coast later this week and could swamp the Mid-Atlantic and Northeast by the weekend.  The National Hurricane Center expects a non-tropical area of low pressure to form east of the Florida coast by late week: "This system could acquire some subtropical characteristics this weekend while it moves generally northward.  "Regardless of subtropical development, this low could…