Is horizontal scroll usable in mobile view?

When building a responsive view of a page with a grid of content boxes, is it a good solution to use a horizontal scroll? Imagine page layout with a header, main column of content (680px) and a sidebar (300px), in the sidebar are widgets of members, about, tag cloud, related topics, etc. In mobile view, the idea is to place those widgets at the top (below header and above content) and use the horizontal scroll of the widgets.