It now looks like the East Coast will dodge a direct hit. Via AccuWeather:
Flooding from Hurricane Joaquin will impact areas from South Carolina to Massachusetts even though the hurricane is unlikely to make landfall in the United States. People should not let their guard down due to a shifting track of the hurricane as the risk to lives and property in this complex situation remains high. A copious amount of moisture will unload very heavy rainfall along parts of the Atlantic Seaboard and the Appalachians into early next week. Strong winds, coastal flooding and beach erosion will occur and could be very damaging even in the absence of a landfall. Hurricane Joaquin strengthened rapidly Wednesday into Thursday. Joaquin reached Category 3 status late Wednesday evening and Category 4 status on Thursday afternoon.