(PORT HURON) -- The early onset of winter has kept the 17 crew members of the U.S. Coast Guard Cutter Neah Bay busy breaking ice for flood prevention and shipping. The 140-foot cutter left its home port of Cleveland on Dec. 14 and hasn't returned. The crew hopes to be back on Sunday after breaking ice on the Detroit and St. Clair rivers, and western Lake Erie. It is one of four ice breakers assigned to that area. The Soo Locks closed this week so the extended navigation season is over until March 25. But the Neah Bay still had to clear parts of the St. Clair River for local traffic and ships still coming through.