@idefix37 Thanks for the replies.
Alas, I guess I'll accept the problems are baked into the models - at least into the relatively unusual conditions we've been having for the last couple weeks. I'm fascinated that Windy seemed to me to perform better in the past.
We did have a more normal northerly yesterday, and my local queries turned up an app that now provides two 1km model runs for the area. These really show the sort of difference that is so interesting and important on on the lee side of the harbour. I do think machine learning can mostly get this sort of stuff right, but the difference between the two models is also interesting. The mist above the harbour matched up pretty well with the areas shown in red, and unsurprisingly the two coarser scale models captured none of this. https://share.icloud.com/photos/042mTFFT9xfxwyQ9uGWWv4Y8Q
I hope you find the video interesting. I'll certainly be interested to know if there are other areas or apps with strategies for local interpretation matched to stations people have put up or found of interest. Even correcting the bias at the official Wellington stations might be of interest if it continues. I'll be interested to look at the reanalysis product at some point.