Scotland's cold snap looks set to continue with Met Office yellow warnings for snow and ice in place for several days.<br /><br />More than 180 schools in the north and north east of the country have been closed due to snow.<br /><br />Forecasters expect more widespread snow showers to move in from the west on Tuesday, potentially affecting the whole of the country.<br /><br />Transport Scotland said drivers should plan ahead for challenging conditions.<br /><br />Scotland's ski centres, which have had limited opening this winter, are meanwhile hoping for more snow to fill in their runs.<br /><br />Glenshee Ski Centre, near Braemar, opened after the A93 road was cleared of snow.