From the Massachusetts Emergency Management Agency (MEMA):
Hurricane Dorian Update (as of 7:45AM on 9/5/19)
Hurricane Dorian will pass well east of the region late Fri night into Sat am, but still bring the potential for 40 to 60 mph wind gusts and heavy rainfall to the Cape and Islands where a Tropical Storm Watch has been issued. This may result in some scattered power outages.
A tropical storm watch has been issued for #CapeCod, #Nantucket, and #MarthasVineyard for Friday night and Saturday.
A Tropical Storm Watch means tropical storm-force winds (sustained winds of 39 to 73 mph) are possible within the next 48 hours.
See full infographic package below.