FLHurricane.com has a Google Map tracking Hurricane Katrina, which is currently passing over the state of Florida in the U.S. Check it out here. The map-pegs show day & time, wind speed, pressure and movement as the storm continues to track.
Here is another interesting map on the same site that plots all 2005 storms around the state of Florida.
Flickr: Hurricane Katrina
Google News: Hurricane Katrina
Technorati Tags: [Katrina], [Hurricanes]