Yep - although they're pretty handy, being that they're live...
Unlike BOM that gives you an average over a huge period of time, which in reality, for those of us that want to know NOW - the PWS network is pretty handy.
I just captured this live - it give you a pretty good idea of what the wind is doing for that area, but yea, it's live, so 16's change to 18's in 5 seconds, and 20 NNW, can turn to 25 NE pretty quickly, as that how the wind usually comes through, as we know

Knowing the weather patterns and whats coming through, using this map site, is like watching the patterns unfolding.
I wish we had a few on our sailing spots - hopefully I'll get a few more built up here, and can find people with spare space on their tv mast!
EDIT:: I should say, the numbers are TEMP, not windspeed. The Bar's indicate wind speed - so click on the bulb. Pitt Water for example was 20knots, or 38km/hr.