Terra
(Storm Tracker)
Wed Sep 21 2005 04:59 PM
Re: 4 frames now

I'm only saying this because I learned it with Katrina and not everyone may remember it.... the motion that the NHC gives is a 6-hour average. So, in the past 6 hours, the storm moved 0.1N, 0.9W, which is essentially due west. This type of binning of data averages out small wobbles and focuses more on true, long-term motion.