Brian Steinberg Senior TV EditorThere’s a new wind blowing through the building that houses Fox News Channel.Amy Freeze and Craig Herrera spent a recent weekday afternoon in a TV studio at the company’s New York headquarters rehearsing, but not for a new opinion program or roundtable show, but for a streamcast focused on the most-up-to-date news about the weather. They talked about oil spills, wildfires and abrupt changes in temperature.