https://phys.org/news/2018-12-nasa-imerg-heavy-rainfall-california.html

The analysis at NASA Goddard showed total rainfall accumulation estimates using IMERG data produced during the seven day period from November 23 to 30, 2018.

NASA IMERG rainfall estimates show the heaviest rainfall concentration in north central California, in an area northwest of Sacramento, between the Mendocino and Plumas National forests, where rainfall totaled between 6.3 (160 mm) and 9.4 inches (240 mm) .