Tag Archive for: Drought

The Drought in California This Summer Was the Worst on Record

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.

Water Budgets and Drought Fees Coming to 1 Million Residents in San Jose and Neighboring Communities

In the latest fallout from the worsening drought, residents of San Jose — which received the lowest rainfall in its recorded history last year — and surrounding communities are about to be given tougher water conservation rules than any major city in California.

The San Jose Water Company, a private firm that provides drinking water to 1 million people in San Jose, Cupertino, Campbell, Los Gatos, Saratoga and Monte Sereno, has begun sending notices to residents informing them it is moving forward with mandatory rules to set monthly residential water budgets with financial penalties for homeowners who exceed them.

La Niña Arrives, Threatening to Stoke Droughts and Roil Markets

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.

Late October Rains Could Dampen Wildfires and Help With Drought, Forecasters Say

A wetter than average forecast for late October could dampen wildfires burning in Northern California and help ease drought conditions, according to the National Weather Service.

The latest weather outlook for the latter part of this month calls for above-normal precipitation in California, with possible high-elevation heavy snow in the Sierra Nevada and the Cascades. There is also potential for an atmospheric river between Oct. 21 to Oct. 27, forecasters said.

Drought Could Dry Up Popular I-5 Oasis

Kettleman City, a popular stop for travelers on Interstate 5 with its host of gas stations and fast food joints, is on the brink of going dry. If that happens, those businesses could shut down.

Lawmakers and others are trying to work out a fix but so far, things are moving slowly.

Every drop of water is precious. Maximizing irrigation efficiency goes a long way toward conserving our water resources. Photo: Ju Irun / Pixabay

Boost Your Irrigation IQ

To support and protect your investment in waterwise landscaping, you need to have a strong irrigation IQ and understand the basics. You’ll be able to best maintain and maximize your system’s efficiency, which is vitally important during times of drought in the San Diego region.

Conventional irrigation systems can be inefficient

Letting sprinklers run to excess is an example of a poorly performing irrigation system due to bad design, inadequate maintenance, and improper management and it's unacceptable. Photo: Wolfgang Bantz irrigation IQ

Letting sprinklers run to excess is an example of a poorly performing irrigation system due to bad design, inadequate maintenance, and improper management and it’s unacceptable. Photo: Wolfgang Bantz

Well-designed and operated systems can reliably deliver the necessary water to sustain your landscaping without waste or excess. Poorly performing systems can suffer due to bad design, inadequate maintenance, and improper management.

A shutoff valve (ball valve) can be manually operated to cut off the water supply in the event of a leak, a malfunction, or a major repair.

The anti-siphon valve, when activated by an irrigation controller, delivers water through a PVC pipe lateral irrigation line, ultimately reaching the sprinkler head, which applies the water to your landscaping.

Intelligent irrigation systems operate efficiently

Efficient irrigation components are designed to operate at lower pressure levels, as specified by each product manufacturer. Devices are more likely to fail under excess pressure, and damage can occur.

A pressure regulator will eliminate excess pressure.

A submeter can be installed where the irrigation system tees off the mainline to the house. It is a recommended option for large properties to keep track of the actual volume of water being applied to the landscape. Single-family homes typically have a single mixed-use meter which doesn’t distinguish between indoor and outdoor water use. An alternative is to install a flow sensor working in tandem with a smart controller.

Low-volume irrigation devices like rotary nozzles and micro or drip irrigation are designed to deliver water to the landscape at a slower rate. This better approximates the infiltration rate of the soil and reduces runoff.

Smart controllers will automatically adjust irrigation schedules in response to changing weather conditions. They come in two varieties. ET controllers monitor weather conditions. Soil moisture-based controllers directly sample the moisture in the ground. These devices also have features like “cycle and soak functions that can help eliminate runoff. When selecting a controller, look for brands with the EPA WaterSense ® label.

This article is part of a year-long series inspired by the 71-page Sustainable Landscapes Program guidebook. The Water Authority and its partners also offer other great resources for landscaping upgrades, including free WaterSmart classes at WaterSmartSD.org.

Olivenhain Municipal Water District Logo landscape design workshops

Olivenhain Municipal Water District Remains at Level 1 of Its Water Shortage Contingency Plan

Encinitas, Calif. — At its October 13 meeting, Olivenhain Municipal Water District’s Board of Directors received an informational report on water supply conditions. OMWD will remain at Level 1 of its Water Shortage Contingency Plan, which calls for voluntary conservation efforts.

OMWD moved out of a Level 2 Water Supply Shortage condition, which has mandatory water use restrictions, and down to Level 1, on July 20, 2016, as a result of a State Water Resources Control Board order allowing agencies to determine their conservation standard based on the ability to meet demands with existing supplies. Since July 20, 2016, OMWD has remained in Level 1.

Atmospheric Rivers Left California Mostly Dry in Water Year 2021

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.

La Niña Brings More Worries Amid Drought

Though it’s unclear what the effects of the La Niña climate expected this winter will be for Northern California, drought-ending rain is likely not among them.

The climate pattern brought on by cooler-than-usual surface water in parts of the Pacific Ocean creates varying weather globally, but historically the phenomena has meant drier conditions in the southern part of the state and wetter conditions in the Pacific Northwest.

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

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.