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Some passengers on MBTA ferries that skitter across Boston Harbor were warned Wednesday that their journey could be a rough one, while other ferry riders were turned back at the dock. Due to high winds and rough seas, MBTA ferries that depart Lynn and Quincy for Boston were both canceled for the day by 7 a.m. Wednesday. “All Quincy service is canceled today, Wednesday October 29, due to rough seas,” the T posted on its webpage. Similar language was added for the Lynn ferry, with all service canceled Wednesday due to “high winds and rough seas.” Meanwhile, Winthrop ferry service continues as scheduled Wednesday, though passengers are being warned the trip could be challenging. “Winthrop Ferry: Passengers may experience an uncomfortable ride today, October 29, due to rough seas,” the T posted on its ferry web page. “Service will operate to and from Gate 3 at Long Wharf South instead of Central Wharf/Aquarium.” The T also warned that the turbulent weather could continue into Friday. Advertisement The Lynn ferry usually sails from Lynn’s Blossom Street Pier to Long Wharf in Boston Harbor, a trip that usually takes about 30 minutes and costs $7 for a one way trip, according to the T. The Quincy ferry. which departs from Marina Bay, stops at Seaport/Fan Pier, the Central Wharf and the Logan Airport Ferry Terminal in East Boston. A one-way fare is $6.50 according to the T. As of 7:12 a.m. Wednesday, the Charlestown, Hingham/Hull and East Boston ferries are sailing as scheduled, according to the T website. The National Weather Service has issued both a gale warning and small craft warning for the waters along both the Massachusetts and Rhode Island coasts that will be in effect until 8 a.m. Thursday. Advertisement Winds gusts up to 30 knots and seas from four to six feet are expected, the weather service cautioned. Inland, breezy conditions are expected, Ken Mahan, the Globe’s meteorologist wrote. “Your morning commute will be mostly in the upper 30s and low 40s, so you’ll want to bundle up as you head out the door,” he wrote. Meanwhile, sailors at the Steamship Authority are casting a eye toward Nantucket Sound and cautioning some cancellations may be ordered as conditions warrant. “Gusty winds are forecast for today that may cause cancellations on our high-speed, passenger-only service on the Hyannis-Nantucket route,” the authority posted. “This evening, cancellations are also possible for ferries serving both routes.” The authority said that given the uncertainty due to nature, the agency is waiving change and cancellation fees for vehicle travel set for Wednesday. “Please continue to monitor our website if you are planning to travel with us,” the agency posted. As of 7:15 a.m., the fleet is operating at scheduled, the authority said. John R. Ellement can be reached at john.ellement@globe.com. Follow him @JREbosglobe.