We were safely tucked in the boat and it was windy outside. Tim looked out to the barrier and noticed the opening getting smaller. Then we heard a fishing boat call the control people and they told him the barrier was closed until the morning. A Tow Boat called to get in but graciously accepted the news that the harbor was closed for the night. DH thought it was merely a practice run but we learned later that it was due to a tidal surge and was for real. I never slept better.