I just looked at NOAA radar for the area.  If you do a base reflection loop you can see clearly the center of the storm is strolling right up the bay.

It’s calm outside now, drizzling that fine rain you always get from tropical rain bands.  You can see on the radar that the south side of Baltimore is near the edge of Hanna’s center of rotation.  The center actually looks like it’s hugging the bay’s western shore.  Its between Washington and Baltimore as of 1:21 according to the radar images.  Good thing it wasn’t a hurricane.