Global Weather Patterns and Coastlines

Coasts are sensitive to sea level rise, changes in the frequency and intensity of storms, increases in precipitation, and warmer ocean temperatures. In addition, rising atmospheric concentrations of carbon dioxide (CO2) are causing the oceans to absorb more of the gas and become more acidic. This rising acidity can have significant impacts on coastal and marine ecosystems.

The impacts of climate change are likely to worsen problems that coastal areas already face. Confronting existing challenges that affect man-made infrastructure and coastal ecosystems, such as shoreline erosion, coastal flooding, and water pollution, is already a concern in many areas. Addressing the additional stress of climate change may require new approaches to managing land, water, waste, and ecosystems…

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

The Cement Ship, SS Palo Alto continues to be battered by strong surf, Seacliff State Beach, CA Januray 13, 2023 © 2023 Shmuel Thaler - Santa Cruz Sentinel.

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

Coast Guard Air Station Astoria crew deploys to Russian River during Northern California floods (by by Petty Officer 3rd Class Taylor Bacon CC BY-NC-ND 2.0 via Flickr).

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…

What are atmospheric rivers? – NOAA

Infographic: The science behind atmospheric rivers (courtesy of NOAA)

Atmospheric rivers are relatively long, narrow regions in the atmosphere – like rivers in the sky – that transport most of the water vapor outside of the tropics. These columns of vapor move with the weather, carrying an amount of water vapor roughly equivalent to the average flow of water at the mouth of the Mississippi River. When the atmospheric rivers make landfall, they often release this water vapor in the form of rain or snow…

What exactly is an Atmospheric River? – USGS Communication

Atmospheric rivers occur all over the world in this global view from February, 2017 (courtesy of NASA | Goddard Space Flight Center Visualization Studio).

Atmospheric rivers have been in the news a lot over the past couple of months, from a late October atmospheric river that brought record-breaking rainfall across Northern California to a mid-November storm that led to catastrophic flooding in Washington. A new atmospheric river storm is hitting the Western U.S. now and more are likely on their way. But what exactly is an atmospheric river?

Rivers in the Sky

A powerful storm formed above the Pacific Ocean battering the U.S. West Coast seen by a weather satellite in January 2023. (image courtesy of Cooperative Institute for Research in the Atmosphere - CIRA - between Colorado State University and NOAA via Space.com).

Atmospheric rivers are relatively long, narrow regions in the atmosphere – like rivers in the sky – that transport most of the water vapor outside of the tropics. These columns of vapor move with the weather, carrying an amount of water vapor roughly equivalent to the average flow of water at the mouth of the Mississippi River. When the atmospheric rivers make landfall, they often release this water vapor in the form of rain or snow…

California faces weeks of cleanup as “one last” major storm lashes state – Axios

Nutan Mellegers, far right, has cheerful cohort of friends pitch in to help cleanup her Sylvan Way home in Felton Grove between downpours on Tuesday © 2023 Shmuel Thaler - Santa Cruz Sentinel.

California was lashed by the final in a series of lethal atmospheric rivers Monday night — as officials warned it could take weeks to clean up the sustained heavy rains, snow and floods that’ve hit the state.

The latest: A mandatory evacuation order was issued for a flooded mobile home park in Acampo after 175 residents left voluntarily earlier Monday, per the San Joaquin County Sheriff’s Office…