On Thursday's show: As an Arctic cold front has moved off the coast, it could bring parts of Houston some wintry precipitation and temperatures below freezing tonight. A winter weather advisory is in effect until noon Friday. But what happens elsewhere in Texas may influence how much of a test this is for our energy grid.

Also this hour: The British ambassador to the United States, Dame Karen Pierce, is in Houston this week. We find out why and discuss a wide range of topics.

And Exxon Mobil is moving its headquarters from Dallas to its Houston campus next year. We discuss what that could mean for the city and Exxon's employees.