From NWS/NOAA:

Rainfall totals from Thursday night through early Sunday morning
look to range from:

-0.5" to 1" for most areas
-1" to 1.25" for coastal low lands and interior North Bay
-1.25" to 2" for higher elevations along the coast
- and above 2" for the highest peaks along the coast with some
isolated areas on the Big Sur Coast reaching above 3"

Winds will be stronger with this next system, but the variability
makes it difficult to pin down which spots will be most affected,
but breezy to gusty conditions should be expected Friday afternoon
and into that night.

This will be something worth checking back in on within the next few
forecast updates.

Beyond these back-to-back systems, dry weather returns as an upper
level ridge snaps into place over the California Coast into the next
work week. This will push any oncoming rain systems North and into
the Washington and Oregon coasts.