Tag Archive for: Climate Change

Atmospheric Rivers Forecast for U.S. West Coast

/in , , /by /Center for Western Weather and Water Extremes

The Center for Western Weather and Water Extremes at Scripps Institution of Oceanography, or CW3E, issued this outlook for Atmospheric Rivers on October 18, 2021.

Active weather is forecast to continue, bringing multiple landfalling ARs to the U.S. West Coast

  • The first AR is forecast to make landfall over Northern California on Tuesday evening, bringing moderate to strong AR conditions to the region
  • The second AR is forecast to make landfall on Thursday and is forecast to be stronger and last longer than the first AR
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Vice President Kamala Harris to Visit Lake Mead Monday, Address Climate Change

/in , /by /ABC13by Jordan Gartner

Vice President Kamala Harris will visit Southern Nevada on Monday and is scheduled to talk about climate change and investing in climate resilience.

White House communications report the vice president is planning to be at Lake Mead at around noon. Harris is scheduled to participate in a tour, receive a briefing, and deliver remarks making the case for the largest investment in climate resilience in U.S. history through passing the Build Back Better Agenda and the Bipartisan Infrastructure Deal.

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Lake Tahoe Waters Plummet as Drought, Climate Change Plague Resort

/in , /by /Los Angeles Timesby Alex Wigglesworth

Lake Tahoe’s water level has dropped so low that water is no longer flowing into the Truckee River and salmon aren’t expected to spawn in a major tributary this year.

Some boat ramps and docks are hundreds of feet from the water line, and clumps of stringy algae have been washing up on beaches, said Geoffrey Schladow, director of the UC Davis Tahoe Environmental Research Center.

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Q&A: La Niña’s Back and It’s Not Good for Parts of Dry West

/in , , /by /AP Newsby Seth Borenstein

For the second straight year, the world heads into a new La Niña weather event. This would tend to dry out parts of an already parched and fiery American West and boost an already busy Atlantic hurricane season.

Just five months after the end of a La Niña that started in September 2020, the U.S. National Oceanic and Atmospheric Administration announced a new cooling of the Pacific is underway.

 

The Drought in California This Summer Was the Worst on Record

/in , , /by /CNNby Rachel Ramirez

The West’s historic, multi-year drought is threatening water supply, food production and electricity generation. It has drained reservoirs at incredible rates and fueled one of the most extreme wildfire seasons the region has ever experienced.

In California, drought conditions this summer were the most extreme in the entire 126-year record — a clear sign of the role climate change plays in the perilous decline of the state’s water resources. Data from the National Oceanic and Atmospheric Administration shows that drought months are becoming the new normal, with rainy months becoming fewer and farther between.
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La Niña Arrives, Threatening to Stoke Droughts and Roil Markets

/in , , /by /Bloombergby Brian K Sullivan

A weather-roiling La Niña appears to have emerged across the equatorial Pacific, setting the stage for worsening droughts in California and South America, frigid winters in parts of the U.S. and Japan and greater risks for the world’s already strained energy and food supplies.

The phenomenon—which begins when the atmosphere reacts to a cooler patch of water over the Pacific Ocean—will likely last through at least February, the U.S. Climate Prediction Center said Thursday. There is a 57% chance it be a moderate event, like the one that started last year, the center said.

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Atmospheric Rivers Left California Mostly Dry in Water Year 2021

/in , , /by /Water News Network Quoted: San Diego County Water Authority

The Center for Western Weather and Water Extremes, or CW3E, at Scripps Institution of Oceanography, released its report October 11 on atmospheric rivers during Water Year 2021.

The report, “Distribution of Landfalling Atmospheric Rivers over the U.S. West Coast During Water Year 2021: End of Water Year Summary” shows that more atmospheric rivers landed on the U.S. West Coast in Water Year 2021 than in Water Year 2020. But the majority of those storms reached the Pacific Northwest, not California, where drought conditions have impacted water supply.

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This Summer was California’s Driest on Record in More Than 100 years, Here’s What That Means

/in , , /by /San Francisco Chronicleby Danielle Escheverria and Yoohjun Jung
In another alarming measure of California’s historic drought, the summer months this year were the state’s driest on record since 1895, when data-gathering for the government’s standard drought index began.
The monthly average dryness for July, August and September 2021 was -6.8 on the Palmer Drought Severity Index, which indicates extreme drought. Anything below -4.0 on the Palmer scale is considered “extreme drought.” A year with normal precipitation would fall between -0.49 and 0.49 on the scale, and an “extremely wet” year would land above 4.0.

 

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Atmospheric Rivers Are Stable For Now — But Change Is On The Way

/in , , /by /Yale Newsby Jim Shelton

Yale researchers are charting the course of mighty “rivers” in the sky that are holding steady in the face of climate change — for now.

In future decades, however, climate-induced changes to these atmospheric rivers could drastically increase extreme precipitation events in some parts of the world, they report in a new study published in the journal Nature Climate Change.

Atmospheric rivers — long, winding filaments of intense water vapor — account for as much as 90% of the moisture sent toward the North and South poles.

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White House Launches Climate Initiatives to Arm Communities Against Floods, Extreme Weather

/in , , /by /The Washington Postby Kasha Patel

The White House announced Tuesday that it would work to revise building standards for flood-prone communities across the country in the face of climate change, while launching tools to make climate information more accessible to the public.

The move is part of the Biden administration’s broader effort to push the United States to reckon with the costs of global warming by factoring in the long-term consequences of decisions being made today.
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