Delmarva is settling into a prolonged, dangerous stretch of cold through the end of the week, with daytime highs stuck in the 20s and overnight lows dropping into the single digits—creating wind chills below zero at times. Friday could challenge a record for the coldest high temperature. Attention then turns to a rapidly strengthening coastal storm this weekend that could bring snow, high winds, and coastal flooding, though the exact track (and impacts) remain uncertain.