* WHAT...One to two feet of inundation above ground level in low- lying areas near shorelines and tidal waterways. * WHERE...In Delaware, New Castle. In New Jersey, Salem. * WHEN...Until 1 AM EDT Saturday. * IMPACTS...At this level, widespread roadway flooding occurs along tidal waterways. Some roads become impassable. Minor damage to vulnerable structures may begin to occur. * ADDITIONAL DETAILS...Widespread minor tidal flooding could continue through into the weekend.