Tag Archive for: Climate Change

Residents’ Climate Anecdotes to Inform San Diego Resilience Plan

The City of San Diego Planning Department is seeking public feedback as it develops a climate resilience plan focused on preparing for sea level rise, flooding and drought, extreme heat and wildfires — risks backed up by a climate change vulnerability assessment completed early last year. The Climate Resilient SD plan would build on the city’s Climate Action Plan released in 2015.

Opinion: California’s Climate Change Future is Being Written – in its Waterways

Much like COVID-19 is changing our election practices and day-to-day business operations, climate change could change your water rights, according to the State Water Resources Control Board.

In the past, I have eluded to the shift from historical facts used for analysis and forecasting to a fear-based guessing game that allows an unelected bureaucracy backed by a one-party-rule elected body to usurp your property rights.

Opinion: California Needs a More Flexible Approach for Planning for Sea Level Rise Across the State

The state of California has changed its sea level rise guidance for state agencies and coastal communities, now advising in new “Principles for Aligned State Action” that Californians employ a single sea level rise target — plan for 3.5 feet by 2050 — as opposed to the more flexible approach the state used in the past. But this single sea level rise number does not represent the best available science and could make California less resilient to climate change.

Landfalling Atmospheric Rivers Increase in First Quarter of Water Year 2021 Over 2020

A Scripps Center for Western Weather and Water Extremes report shows that more atmospheric rivers have made landfall over the U.S. West Coast in the first four months of Water Year 2021 compared to the previous period in 2020.

San Diego Experiencing One of Driest Februaries in Nearly 170 years

San Diego is experiencing one of the driest Februaries it has had in nearly 170 years due to weather patterns that are sending most winter storms into the Pacific Northwest and Northern California rather than allowing them to drop south, says the National Weather Service.

Adaptation Can Compound Climate Change Impacts on Energy and Water

In 2014, as California was in the midst of one of the worst droughts in its recorded history, Julia Szinai was working for an electric utility. The worst years of the drought were still ahead, but the impacts of the dry spell on California’s energy system were already clear to Szinai. As water levels dropped, so too did hydropower generation—an energy gap that was filled by fossil fuels.

Opinion: An Independent Colorado River Aqueduct Could Be a Money Saver for San Diego

There’s an old saying that those who don’t remember history are destined to repeat it.

And that certainly holds true when it comes to securing water for this semi-arid place we call home. Those who have been around here since the early 1990s remember when we relied on a single Los Angeles-based water agency to meet almost all of our water needs — and we paid for it with traumatic supply cuts that crippled our economy.

Thankfully, three decades of regional investments have changed San Diego’s story for the better. Planning and investments by the San Diego County Water Authority and our 24 local retail member agencies have produced and will continue to ensure one of the most reliable water supplies in California.

Atmospheric Rivers-CW3E-Scripps-Rain

Landfalling Atmospheric Rivers Increase in First Quarter of Water Year 2021 Over 2020

A Scripps Center for Western Weather and Water Extremes report shows that more atmospheric rivers have made landfall over the U.S. West Coast in the first four months of Water Year 2021 compared to the previous period in 2020.

The four months of Water Year 2021 experienced a total of 35 landfalling ARs over the U.S. West Coast, six more than the first four months of Water Year 2020, according to the CW3E quarter year summary released February 11.

Key takeaways from the CW3E update on atmospheric rivers

• The first four months of Water Year 2021 experienced a total of 35 landfalling ARs over the U.S. West Coast, 6 more than the first four months of Water Year 2020.
• Water Year 2021 also experienced more than twice as many strong or greater ARs (14) compared to Water Year 2020 (6).
• While Water Year 2021 saw more ARs in its first 4 months compared to Water Year 2020, a large majority of those ARs were
strongest over the Pacific Northwest (Oregon and Washington).
• The average landfall latitude thus far in Water Year 2021 was 45.9°N compared to 43.9°N during the first half of Water Year 2020.
• The lack of landfalling ARs over Southern California and Baja California has resulted in much drier conditions over the southwestern U.S. compared to WY 2020.

CW3E-Atmospheric Rivers-Water Year 2021

The four months of Water Year 2021 experienced a total of 35 landfalling ARs over the U.S. West Coast, six more than the first four months of Water Year 2020. Graphic: Center for Western Weather and Water Extremes

Distribution of Landfalling Atmospheric Rivers over the U.S. West Coast During Water Year 2021: Quarter Year Summary

Atmospheric River-NOAA-WNN-CW3E

A partnership with the San Diego County Water Authority and the Scripps Institution of Oceanography at UC San Diego seeks to optimize water management to better predict atmospheric rivers before, during, and after those seasonal storms.

In August 2020, Scripps Center for Western Weather and Water Extremes (CW3E) launched the Water Affiliates Group, which brings together cutting-edge science and hands-on water industry experience to enhance reservoir operations in light of the changing climate. The Water Authority has a long-running alliance with Scripps and is among six founding water agencies statewide.

CW3E and its partners will share and support best practices in forecast-informed reservoir operations, increase research around atmospheric rivers and droughts, and develop strategies for mitigating flood risk and increasing water supply reliability.

Atmospheric Rivers-CW3E-water supply

The above image, from the EOS article, is a depiction of an atmospheric river, interacting with West Coast mountains and a midlatitude cyclone over the northeast Pacific on 5 February 2015. This image provides an example of approximate locations of associated tropical moisture exports and a warm conveyor belt (WCB). Graphic: Adapted from NOAA/ESRL Physical Sciences Division via CW3E

Local Ag Looks to Spotlight its Climate-Friendly Profile

The Kern County Farm Bureau issued a “call to action” this week asking local growers and ranchers to participate in a series of upcoming meetings that will influence the role California’s agricultural lands will be expected to play, or continue to play, in fighting climate change. Besides asking members to speak up at a series of online meetings the state is hosting this month, the bureau is collecting data it hopes will illustrate local ag producers’ “climate-conscious nature” with an eye toward ensuring private industry will continue managing its property “on a voluntary basis,” bureau President John C. Moore III said by email.

Distribution of Landfalling Atmospheric Rivers Over the U.S. West Coast During Water Year 2021: Quarter Year Summary