Hurricane Katrina is coming ashore on the Gulf Coast of Louisiana this morning as a Category 4 hurricane. The city is evacuated. Even the TV Stations have had to abandon ship. I haven't yet checked on all the stations, but the folks from WDSU have moved inland to Jackson, Mississippi and are broadcasting from their sister station their.
A live streaming feed of their coverage can be found here.
Lost Remote also has a list of other Hurricane coverage.