Its possible to set up your own weather station and to feed the data to Seabreeze and set up a website displaying data from the station.
Maybe the yachties should start putting their energy into this rather than lobbying the BOM. Could the skiff club at Belmont be a reasonable place for a weather station?
The cost of a weather station is around $2000. You need to connect it to a computer, probably running Windows and have an Internet connection.
Here is a screenshot of one I set up a few years ago. Its still working well.