Satellite image on Jan. 4, 2023, showing the bomb cyclone (red L) off the West Coast and the atmospheric river (yellow arrow) that stretches from the West Coast all the way to Hawaii.

It was quite a parade of storms that moved across the Pacific at the start of 2023. One low-pressure system after another crashed into the West Coast and brought a deluge of rain and abundance of mountain snow, primarily to California, from the northern end to the southern end.

San Francisco and Sacramento picked up over three times their average rainfall for January in the first two and a half weeks. Los Angeles and San Diego have already had four times their average January rainfall. That water also translated to snow in the Sierra Nevada mountains, from north to south, with several feet of snow falling with each successive storm.

Jim is the chief meteorologist at and has forecast the weather in Jackson Hole for over 30 years.

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