My understanding is they are different models. BOM is a more localised forecast. In NSW for example the Seabreeze is a good indicator to what the wind will be doing in general but BOM, especially Meteye, will giver you a detailed forecast that takes local topography into consideration.
Looking at the 35 degree forecast alone I would think a strong Seabreeze is very unlikely. I haven't temps in the mid to high 30s and a strong Seabreeze at the same time.
Look at the prognosis maps and you'll see why there's uncertainty. There's another trough coming in and hard to predict how that affects the wind so anything can happen.
If i didn't know better i'd say they've gone their separate ways. Seabreeze used to follow the BOM predicted temps (at least) seabreeze has fri being 35 degrees, bom has it at 24 degrees.
given they overstate the wind so they can't be liable when an idiot tries to take a 3m tinny to rotto, how's the temp forecast looking .? Oh let's go hiking in the bush tomorrow with no water cos it is only 24deg
For what it's worth, sailed Dutchies from 3-6ish & was on 5.3, could have easily changed down. Gusts 25+ with a few wobbles in the lulls but generally a good, solid outing. Reckon SB forecast was pretty much on the money for the arvo