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by counters 1327 days ago
It's purely spatial resolution and the representation of topography that high-resolution simulation permits. Any NWP model like WRF or WRF-LES will produce topographic-driven wind fields with high fidelity pretty much out of the box, without any customization required. The result may be pretty, but it's really nothing of note from a weather modeling perspective.

ECMWF's model is 9km spatial resolution, so Angel Island probably doesn't even show up in the model domain.