Home / Weather News /

California atmospheric river events

04:51 PM
February 3, 2025

Snow & flooding
Moisture plume aimed at N. Calif., PNW

Very heavy rain and snow impacted the Pacific Northwest and northern California over the weekend and the atmospheric river activity aimed toward the West Coast isn't going anywhere these next several days.

It's called the Pineapple Express due to its point of origin out of the tropical Pacific. Plentiful moisture is siphoned northward thanks to low-pressure systems moving into the West Coast. These rivers of rain, or atmospheric rivers, can carry 15 times more water vapor than exits the mouth of the Mississippi! They provide the rain and snowpack that the western U.S. needs through its dry season.

Learn more about Atmospheric Riversread more

Heavy rain and snow certainly left their mark in Belden, Calif., over the weekend and more activity is on the way. The WeatherRadar shows more wet and snowy weather through the end of the week and forecast guidance shows a break on the way this coming weekend. When it comes to snow, several feet are in the forecast - like across the higher elevations of the northern Sierra.

If you've been staying up to date with the situation on the app, you will have seen heavy rain and winter weather alerts popping up on the home screen, just as pictured above. Check to make sure your alerts are switched on.

Becca Parker
More on the topic
rjukan-mirrors
Sunday, December 7, 2025

In the base of a valley

A town that uses mirrors for sunlight
Saturday, November 29, 2025

Find the lotion!

Dry skin season is back
Thursday, November 27, 2025

An American tradition

History of Thanksgiving
All weather news
This might also interest you
Sunday, December 14, 2025

Major problems

The dangers of freezing rain
Saturday, December 13, 2025

What is it?

Lake-effect snow explained
Daily briefing
Tuesday, December 16, 2025

Daily briefing

Northwest remains soggy
All articles
Weather & Radar

Weather & Radar is also available on

Google Play StoreApp Store

Company

Contact us Privacy policy Legal info Accessibility statement

Services

Uploader

Socials

instagramfacebookthreadslinkList