Xavier William "Bill" Proenza' is the Southern Region Director of the United States National Weather service. He was previously the director of the National Hurricane Center from January 4, 2007 to July 9, 2007. Before that Proenza was Southern Region Director from 1999 to 2007. Wikipedia*
On the C-SPAN Networks:
William Proenza has three videos in the C-SPAN Video Library; the first appearance was a 1997 Senate Committee as a Meteorologist. The year with the most videos was 2007 with two videos.