Atmospheric rivers hitting California will become even more intense. Here’s how they work – the San Francisco Chronicle

The same weather that replenishes California water supplies could bring the next megaflood.
A procession of storms is drenching Northern California this week, with rainfall already topping 2 inches in San Francisco and surpassing 8 inches in the Santa Cruz Mountains. More precipitation is on tap through the weekend, prompting concerns of widespread urban flooding and potential landslides…
What Will ‘Weather Whiplash’ Mean for California? – the New York Times

California is built upon the great gamble of irrigation. Left alone, much of the land in the Western United States would be inhospitable to teeming cities. But we’re Americans — we couldn’t let the desert stand in our way.
More than a century ago, the United States Bureau of Land Reclamation began taming the water in the West…
Welcome to the era of weather whiplash – Vox

California’s floods reveal a likely climate change symptom: Quick shifts between opposing weather conditions. In less than a week, the story about California’s weather shifted dramatically. Just before New Year’s Eve, the state was running out of water following two decades of severe drought. Then, it started to rain and rain..California was battered by a series of atmospheric rivers…