2100 mile-wide North Pacific High is compacted against the California coast by a rainy Gulf of Alaska storm
Strong pressure gradient towards Stockton helps Candlestick and Alameda.
A massive gradient towards Bakersfield and the Great Basin accelerates wind down the coast.
The same gradient sucks winds over the launch sites from Anita Rock to 3rd Ave., through the Santa Clara Valley from San Jose and Pacheco Pass.
Powerful NW winds ≈ 1000 feet aloft blast apart the urban heat bubble over Ocean Beach so very strong beach winds.
The same winds aloft add a GUST factor everywhere.
Or another way to judge the wind is to look at what is rigged at the 3rd. Ave. launch sites: