Forecast swells have forced the cancellation of the 11:00am and 2:15pm Interislander sailings from Picton, as well as the 8.30pm from Wellington. It's a similar story for Bluebridge, the 1.30pm and 8.30pm Wellington to Picton sailings are cancelled, as well as the 2.00pm and 7.15pm Picton to Wellington crossings. Snow is also affecting a number of mountain passes. NIWA meteorologist and forecaster Ben Noll spoke to Morning Report.