Alberto remains at tropical storm status, however does appear to be fairly weak, with this imagery detecting the strongest part of the storm on the western side, leaving the eastern side fairly exposed to the elements of nature. However, Alberto does look to keep tropical storm strength as it makes a 180 and heads northeast along the East Coast.
These are called dynamic models, which are models that take the information from buoys and surface data near the storm, unlike statistical models, which rely on historical tracks. The dynamic models are projecting a close brush with North Carolina which would likely result in minor beach erosion and weak storm surge from intense waves. After that, the system looks to either go out to sea, or actually pose a threat to New England. That will definitely have to be monitored in coming days.