Possible titles: – Snowstorm hits Nantucket, trapping residents indoors – Nemo brings heavy snow and travel disruptions – Winter storm causes power outages and closures – Snow emergency declared on Nantucket Island – Residents prepare for blizzard conditions on #nantucket – Snow plows work to clear roads and driveways – Schools and businesses closed due to snow – Islanders share photos and updates on #nemo – Winter wonderland or winter nightmare?