A trough of low pressure lingered near the southeast U.S. coast from the 18th onward.
A cold front dropped into this trough on the 20th.  By the 22nd, a closed low had formed
at the surface 175 n mi south-southeast of Cape Hatteras; this is when the system was
designated a tropical depression.  Several hours later an aircraft investigated the system
and found a tropical storm.  Initially moving slowly northeastward, it was blocked by a
 ridge of high pressure.  It executed an anticyclonic loop, moving towards the Virginia Capes.
  As another low approached the Great Lakes, the system moved quickly to the north-
northwest, moving onto the Eastern Shore of Maryland on the 25th before weakening into
a  tropical depression.  Its surface circulation dissipated in Pennsylvania on the 26th.
Its track is below, produced  by the National Hurricane Center.

The graphic belows show the storm total rainfall for Danielle...data provided by the
 National Climatic Data Center in Asheville, NC.