This could be handy. I gave been using the other explorer but just stumbled across a marine one.

Hope it helps some. www.bom.gov.au/australia/meteye/

Isn't it the same feed for this page at the Bom ?

www.bom.gov.au/marine/wind.shtml

The best page to use for Port Phillip is probably:
http://www.bom.gov.au/vic/forecasts/localwaters.shtml

It should show the same as:
www.bom.gov.au/forecasts/graphical/marine/vic/
though this page covers Victoria more generally.

The page: www.bom.gov.au/marine/wind.shtml shows raw model data from one model (Bureau's ACCESS model - its not bad/up there with better ones in the world I must say), whereas the pages listed above have actually had human intervention; the forecasters on the bench look at the raw model data, compare it to several other models, chuck in a bit of local knowledge and experience, and "tweak" the grids to give the official forecast 'map'.

The precis forecast at: www.bom.gov.au/vic/forecasts/portphillip.shtml is then automatically generated off the grids that the forecasters have tweaked; you'll see the map does show some areas of 20 knots today so the peak value in the precis text is 20.

(People often expect the whole bay to be 20knts if the precis says up to 20, but now you can see from the maps that it means 20 'somewhere' on the bay is possible. today, that's most likely on the western side of the bay)

I've been watching the various models for years in relation to our wind patterns.

I find for seabreezes, that ACCESS model Marine Wind Forecast (www.bom.gov.au/marine/wind.shtml) seems to be most accurate. For instance, yesterday, it was spot on, but the new graphical forecasts overcooked the SSW flow pushing up the bay. On pure seabreeze days (little synoptic flow) when the sun is out, it underestimates by a few knots, so 10-15 knots on the model will often reach 18 knots up the northern end where there is more smaller-scale local seabreeze pull.

For northerlies, on the other hand, those new graphical forecasts seem better as they capture the local mixing better, especially down through Melbourne Airport onto the northern bay.