Hurricane Erin will make its closest pass to the Mid-Atlantic today, staying several hundred miles offshore but still delivering dangerous coastal conditions to Delaware and Maryland beaches. The storm is producing tropical-storm-force winds just off the coast, creating threats of beach erosion, life-threatening rip currents, and major tidal flooding along the Delaware shoreline. Conditions will improve tonight as Erin moves northeast, with fair and pleasant weather expected Friday and Saturday before another cold front brings unsettled conditions early next week.