{"id":672,"date":"2026-05-13T15:30:13","date_gmt":"2026-05-13T15:30:13","guid":{"rendered":"https:\/\/california-relocation-journal.com\/?p=672"},"modified":"2026-05-13T15:30:13","modified_gmt":"2026-05-13T15:30:13","slug":"heavier-storms-and-longer-dry-spells-are-drying-california-and-the-west","status":"publish","type":"post","link":"https:\/\/california-relocation-journal.com\/?p=672","title":{"rendered":"Heavier storms and longer dry spells are drying California and the West"},"content":{"rendered":"
\n

Rainfall across much of California and the West has become more clustered in heavier storms, with longer dry spells in between. <\/p>\n

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The net effect is a drying out, researchers found in a new study. It isn\u2019t just the western United States; the same is true in much of the rest of the world.<\/p>\n

The research is the first to reveal how this concentration of rainfall into fewer, heavier events dries out the landscape. <\/p>\n

\u201cThe more concentrated rainfall you get, the drier you become,\u201d said Justin Mankin, an associate professor of geography at Dartmouth College who coauthored the study. <\/p>\n

The occasional heavy rain is just too much for the land, and the soil can only absorb so much at once. Mankin said it\u2019s like \u201casking the land to drink from a fire hose.\u201d<\/p>\n

\u201cAs you concentrate rainfall into heavier downpours, more of that water, it sits on top of the land to be easily evaporated,\u201d he said.<\/p>\n

The trend is less clear in Southern California and more pronounced in the North. The America West is one of the places where rainfall has become most clustered or concentrated.<\/p>\n

The analysis, published Wednesday in the journal Nature, offers new insight into how rainfall is shifting as the climate warms. <\/p>\n

The scientists analyzed precipitation globally from 1980 to 2022. To determine which areas have grown drier or wetter, they used data from satellites that track shifts in water across the landscape. <\/p>\n

The researchers found precipitation in the Rocky Mountains has become about 20% more concentrated, affecting the Colorado River, a major water source for California. The river has shrunk dramatically since 2000 in a megadrought that scientists say is probably the most severe in 1,200 years. <\/p>\n

Experts have long expected global warming to produce less frequent but more intense precipitation. The study shows that rainfall consolidation is already happening across much of the western U.S. <\/p>\n

\u201cIt\u2019s consistent with what we\u2019d expect from climate change, because a warmer atmosphere can hold more water vapor,\u201d said Corey Lesk, who led the study as a researcher at Dartmouth and is now a professor of Earth and atmospheric sciences at the University of Quebec in Montreal.<\/p>\n

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As more planet-warming gases are released from burning fossil fuels, rising heat is also causing more moisture to evaporate off the land and making plants absorb more moisture.<\/p>\n

California naturally has dramatic and sometimes volatile shifts between droughts and floods. Climate models have projected an intensification of rain in the state, especially from atmospheric river storms. <\/p>\n

As temperatures rise in the future, climate models indicate Southern California is likely to get a little drier and Northern California is likely to get a little wetter, said Alexander Gershunov, a research meteorologist at the Scripps Institution of Oceanography at UC San Diego who wasn\u2019t involved in the study. <\/p>\n

Warmer temperatures are also shrinking the snowpack in the Sierra Nevada, he said, and that means more and more of the state\u2019s water will come from big downpours during atmospheric rivers. <\/p>\n

The research shows rainfall has become more concentrated regardless whether a region has a wet climate or a dry one. <\/p>\n

The trend of fewer but stronger storms \u201creally exposes the mechanics of how climate change will affect water resources for everyone,\u201d Lesk said. <\/p>\n

Other research has shown that large swaths of the world are growing drier<\/u>, including a \u201cmega-drying\u201d region that stretches from the western U.S. through Mexico to Central America.<\/p>\n

The latest study shows that the amount of water available in a given region depends as much on the concentration of rainfall as it does on the total amount of precipitation, Mankin said.<\/p>\n

In California and other western states, he said, the findings suggest current approaches for dealing with drought and floods are insufficient.<\/p>\n

\u201cThis is just another indicator \u2026 we are not adapted to the climate we have, let alone the one that seems to be unfolding,\u201d he said.<\/p>\n

Read more Air conditioning battery program for renters could help cities manage heat waves<\/a><\/p>\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

As more rain is concentrated in heavier storms, many parts of California and the western U.S. are drying, new research shows.<\/p>\n","protected":false},"author":1,"featured_media":671,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-672","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-climate"],"yoast_head":"\nHeavier storms and longer dry spells are drying California and the West - California Relocation Journal<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/california-relocation-journal.com\/?p=672\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Heavier storms and longer dry spells are drying California and the West - 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