[Dog Gone]

You're not out of the woods on this. Tomorrow's track may be a couple hundred miles different from today's forecast.

[Howlin]

Honestly, on that site I just linked, the graphic changed within an hour; I finally decided to start saving them to see the difference!

[oceanview]

weather channel mentioned (without providing supporting information) that "this event may be speeding up a little" in last hours segment. I think that tends to bring it in a little further south, since the faster it goes, the less chance the trough over the central US has a chance to move south and east which would tend to pull it more north.

[wimpycat]

It's very hard to measure this sort of thing, because there are so many variables; namely a couple of high-pressure systems. It's impossible to measure it 100% accurately, especially this far out in time.