The Hurricane Warning has been extended northeastward to Surf City North Carolina. The Hurricane Warning from Sebastian Inlet to Cocoa Beach Florida has been changed to a Tropical Storm Warning. The Tropical Storm Warning south of Sebastian Inlet has been discontinued. The storm surge inbound into South Carolina is the largest concern. 26 Million people currently under Hurricane watch/warning.
Florida Governor Rick Scott morning debrief and presser :

FL Governor Scott has done an exceptional job in planning, communicating and preparation.  Florida has been extremely fortunate so far. This could have been infinitely worse if Matthew varied only a few miles west.
At 1100 AM EDT (1500 UTC), the eye of Hurricane Matthew was located near latitude 29.4 North, longitude 80.5 West. Matthew is moving toward the north-northwest near 13 mph (20 km/h), and this general motion is expected to continue today.

A turn toward the north is expected tonight or Saturday. On the forecast track, the center of Matthew will continue to move near or over the coast of northeast Florida and Georgia through tonight, and near or over the coast of South Carolina on Saturday.
Maximum sustained winds are near 120 mph (195 km/h) with higher gusts. Matthew is a category 3 hurricane on the Saffir-Simpson Hurricane Wind Scale. Although weakening is forecast during the next 48 hours, Matthew is expected to remain a hurricane until it begins to move away from the United States on Sunday.
Hurricane-force winds extend outward up to 60 miles (95 km) from the center and tropical-storm-force winds extend outward up to 185 miles (295 km). A wind gust to 69 mph (111 km/h) was recently reported at St. Augustine. The latest minimum central pressure reported by an Air Force Hurricane Hunter plane was 947 mb (27.97 inches). (read more)