A Level 2 out of 4 flash flood threat remains for Northern California through Tuesday, as the first of a series of storms begins to pick up where this weekend's atmospheric river left off. It is forecast to come ashore and bring heavy rain and powerful wind gusts beginning Tuesday afternoon.

On Wednesday at 4:35 p.m. a flash flood warning was released by the NWS Sacramento CA in effect until 7:30 p.m. for Sacramento and Yolo counties.

A flash flood warning is in effect for southern Humboldt County and southwestern Trinity County until 6:45 p.m. PST tonight, according to the National Weather Service office in Eureka.

On Monday at 5:51 a.m. a flood watch was released by the National Weather Service valid from Tuesday 4 p.m. until Wednesday Dec. 24, at 10 p.m. for Malibu.

Twenty-eight people at Camp Mystic — 25 campers, the camp's owner and two counselors — died in the July 4 floods when the Guadalupe River breached its banks.

Yosemite, Yosemite Valley, Mariposa-Madera Lower Sierra, San Joaquin River Canyon and Upper San Joaquin River are under a flood watch which was issued by the National Weather Service on Friday at

Los Angeles County was placed under an updated flood watch by the National Weather Service on Monday at 4:53 p.m. The watch is valid from Tuesday 4 p.m. until Thursday Dec. 25, at 10 p.m.

The Greater Lake Tahoe Area and Lassen-Eastern Plumas-Eastern Sierra counties are included in a flood watch issued by the National Weather Service on Friday at 12:59 p.m. The watch is valid from

On Friday at 1:44 a.m. an updated coastal flood advisory was issued by the National Weather Service valid between 6 a.m. and 11 a.m. for Hudson, Bergen, Essex and Union counties.