Tag Archive for: Weather

Coldest Ocean Water Temperature in Decades Recorded Off San Diego County

/in , , /by /The San Diego Union-Tribuneby Gary Robbins

The ocean temperature off Del Mar fell to 52.25 degrees this week, the lowest reading in San Diego County waters since UC San Diego began using a buoy system in the 1970s to monitor large areas of the U.S. coastline.

UCSD’s Scripps Institution of Oceanography said near-record low readings also were recorded this week at many other stations, including off Imperial Beach and Leucadia, where the temperature was 53.5 degrees on Wednesday.

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Spruce Up Your Sprinklers in April

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Californians gave their irrigation systems the winter off in much of 2023 thanks to above-average precipitation. As the weather warms, the U.S. EPA encourages everyone to perform a maintenance check in April as part of its “Sprinkler Spruce Up” effort.

A sprinkler spruce-up involves four steps: inspect, connect, direct, and select. Cracks in pipes can lead to costly leaks, and broken sprinkler heads can waste water and money. System maintenance can help save money and water, up to 25,000 gallons of water, and $280 over a six-month irrigation season. April is an ideal time to spruce up your irrigation system.

Look for leaks and breaks

Because most irrigation systems run in the early morning, missing or broken sprinkler heads may go unnoticed. This can cause overflow or flooding on landscapes or waste water on hard surfaces.

Inspect your irrigation system and look for sprinkler heads that do not pop up fully or are tilted. Flag them so they can be located and repaired later. You may be able to do it yourself but call on a WaterSense-certified professional who can replace the broken sprinkler heads.

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Check all connections

Leaks can occur at the joints between sprinklers and the piping. Leaking joints can also be caused by too much water pressure or particles in the water. Check to ensure your pressure regulator is installed properly.

Between irrigation cycles, look for water pooling on the surface of your landscaping. This could be caused by an underground leak. Check the connections inside valve boxes to make sure all the valves and other components are securely connected. If the valves cannot close completely, your system could slowly seep water even when turned off.

Survey your irrigation coverage

The greatest waste of water in <yoastmark class=

Irrigation water spraying on hardscapes instead of landscape plants is wasted down the stormwater drain. While your system is running, note any overspray and adjust sprinklers toward your landscaping.

For best results:

  • Each sprinkler should be able to reach the sprinkler head next to it, called head-to-head coverage.
  • Direct sprinklers for uniform coverage to avoid dry spots.
  • Maintain consistent water pressure so that nozzles can operate efficiently.
  • Upgrade to a smart controller. Weather and soil moisture-based controllers can automatically adjust your watering schedule.

The greatest waste of water in landscape irrigation comes from watering too much, too fast. Observe how water absorbs into the ground during the watering cycle. If water begins running off your landscaping or pooling, run sprinklers in multiple shorter sessions with breaks. This allows water to soak into the soil and minimizes runoff.

Instructions to help homeowners check in-ground irrigation ground systems here: “It’s Time to Start a Sprinkler Spruce-Up!”  The EPA’s checklist “Find It, Flag It, Fix It: A Checklist For Your Landscape” shows how to walk through your landscape to identify problems. The checklist also provides additional irrigation and landscape tips and suggestions about when to call in an irrigation professional.

Oceanside Declares Local Emergency, Will Seek State & Federal Funding For Storm Response

/in , /by /The San Diego Union-Tribuneby Phil Diehl

Oceanside declared a local emergency this week in hopes of getting state and possibly federal money to cover the repair costs for sinkholes, landslides, flooding and a sewage spill caused by the recent series of storms.

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NOAA Spring Outlook: California Drought Cut by Half with More Relief to Come

/in , , /by /Water News Networkby NOAA

NOAA’s U.S. Spring Outlook indicates the abnormally wet winter will further improve drought across much of the western U.S. as the snowpack melts in the coming months. Winter precipitation, combined with recent storms, wiped out exceptional and extreme drought in California for the first time since 2020, and is expected to further improve drought conditions this spring.

Significant flooding in the western U.S., especially in California, followed another series of strong Pacific storms that battered the region in March, and piled on to an already historic snowpack.

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NOAA Spring Outlook: California Drought Cut by Half with More Relief to Come

/in , /by /NOAA

NOAA’s U.S. Spring Outlook indicates the abnormally wet winter will further improve drought across much of the western U.S. as the snowpack melts in the coming months. Winter precipitation, combined with recent storms, wiped out exceptional and extreme drought in California for the first time since 2020, and is expected to further improve drought conditions this spring.

Significant flooding in the western U.S., especially in California, followed another series of strong Pacific storms that battered the region in March, and piled on to an already historic snowpack.

NOAA’s U.S. Spring Outlook highlights temperature, precipitation, drought and flood predictions for April through June to help the nation prepare for potential weather and climate threats to lives and livelihoods.

Climate change – wet and dry extremes

​“Climate change is driving both wet and dry extremes, as illustrated by NOAA’s observations and data that inform this seasonal outlook,” said NOAA Administrator Rick Spinrad, Ph.D.​​ “​Under the Bipartisan Infrastructure Law​ and Inflation Reduction Act, and in support of the Biden Administration’s priority to tackle the climate crisis​, NOAA ​will invest significant resources ​to build a Climate-Ready Nation that gives communities tailored information about changing conditions so that residents and economies are protected.”

Spring Outlook for drought, temperature and precipitation

On March 9, NOAA forecasters declared La Niña over. The El Niño-Southern Oscillation (ENSO) is a climate pattern, based on changes in rainfall and sea surface temperatures across the equatorial Pacific Ocean, that influences temperature and precipitation around the world. La Niña occurs when ocean temperatures are cooler than normal and rainfall is reduced in the eastern to central Pacific Ocean.

El Niño and La Niña

“La Niña has finally ended after being in place nearly continuously for more than two years,” said Jon Gottschalck, chief of the operational prediction branch at NOAA’s Climate Prediction Center, a division of the National Weather Service. “ENSO-neutral —  the transition period between El Niño and La Niña — is likely to continue into the early summer with elevated chances of El Niño developing thereafter. ENSO-neutral is factored into NOAA’s Spring Outlook.”

Moderate to exceptional drought coverage across the U.S. is at its lowest since August 2020 and is likely to continue improving, or end entirely, across much of California and the Great Basin. The spring wet season is expected to improve drought conditions across parts of the northern and central Plains. Current drought conditions in Florida are expected to improve or go away during the next three months.

Areas of extreme to exceptional drought across parts of the southern High Plains are likely to persist through the spring season, with drought also expected to develop into parts of New Mexico. Across parts of the Northwest U.S. and northern Rockies, drought conditions are also expected to continue. Drought may develop into parts of Washington state.

Above-average temperatures are favored for much of the southern and eastern half of the U.S. For April through June, the greatest chance for above-average temperatures exists from the southern High Plains eastward to Florida, and northward along the East Coast. Above-average temperatures are also likely for Hawaii and northern parts of Alaska. Below-average temperatures are predicted for the central Great Basin and the northern Plains.

California endures flooding, landslides, and evacuations

Parts of central and southern California that were still reeling from heavy snowfall earlier this month received yet another powerful atmospheric river which exited the region on March 15. Flooding, landslides, power outages, and evacuations are among the many impacts residents faced from the recent storm. The above graphic depicts most of the state receiving between 300-600% of normal precipitation over the last seven days. — USDA Water and Climate Update

Below-average precipitation like for the Southwest

NOAA forecasters predict above-average precipitation this spring across the Great Lakes, Ohio Valley, and into parts of the mid-Atlantic and Northeast. Below-average precipitation is most likely for the Southwest and parts of the Pacific Northwest.

Rain Forecast From Atmospheric Rivers Poses Challenge, But Advancements Are Being Made

/in /by /KPBS-FM/TVby John Carroll and Roland Lizarondo

The forecast said high winds and up to an inch of rain in San Diego Tuesday. The winds showed, but the rain? That was a different story.

How much water you got from this latest atmospheric-river charged storm depended on where you live.

For an example, as of noon Tuesday, San Onofre had received a little over an inch of rain, but San Diego International Airport received just three-tenths of an inch.

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California Storms Persist With Deluges, Mudslide Threats

/in , , /by /AP Newsby Christopher Weber and Stephanie Dazio

California saw no relief from drenching rains early Tuesday as the latest in a relentless string of storms continued to swamp roads and batter coastlines with high surf, turning rivers into gushing flood zones and forcing the evacuation of thousands in towns with histories of deadly mudslides. At least 14 people have died since the storms began last week.

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‘The Worst of it Still in Front of Us’ as New Storms Set to Pound a Rain-Weary California

/in , , /by /Los Angeles Timesby Rong-Gong Lin II, Jessica Garrison, City Carcamo, and Anita Chabria

California is bracing for another week of destructive storms that will probably bring flooding and hazardous winds Monday to an already battered state.

A series of atmospheric rivers that pummeled coastal communities last week and left more than 400,000 without power in California on Sunday will be followed by particularly brutal weather as rivers reach flood levels and powerful winds wreak havoc, forecasters fear.

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Snow Survey: Good Start but Drought Relief Depends on Coming Months

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

The California Department of Water Resources first manual snow survey of the season Tuesday at Phillips Station recorded 55.5 inches of snow depth and a snow water equivalent of 17.5 inches, which is 177% of average for the location. The snow water equivalent measures the amount of water contained in the snowpack and is a key component of DWR’s water supply forecast. Statewide the snowpack is 174% of average for this date.

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Snow Survey: Good Start but Drought Relief Depends on Coming Months

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The California Department of Water Resources first manual snow survey of the season Tuesday at Phillips Station recorded 55.5 inches of snow depth and a snow water equivalent of 17.5 inches, which is 177% of average for the location. The snow water equivalent measures the amount of water contained in the snowpack and is a key component of DWR’s water supply forecast. Statewide the snowpack is 174% of average for this date.

Survey: December storms delivered big snow totals

California is expected to see continued rain and snow over the next seven days, with the threat of flooding in parts of California. Conditions so far this season have proven to be strikingly similar to last year when California saw some early rainstorms and strong December snow totals only to have the driest January through March on record.

“The significant Sierra snowpack is good news but unfortunately these same storms are bringing flooding to parts of California,” said DWR Director Karla Nemeth. “This is a prime example of the threat of extreme flooding during a prolonged drought as California experiences more swings between wet and dry periods brought on by our changing climate.”

One year ago, the Phillips survey showed the seventh highest January measurements on record for that location. However, those results were followed by three months of extremely dry conditions and by April 1 of last year, the Phillips survey measurements were the third lowest on record.

More telling than a survey at a single location are DWR’s electronic readings from 130 stations placed throughout the state. Measurements indicate that statewide, the snowpack’s snow water equivalent is 17.1 inches, or 174%  of average for January 3.

Opportunities to save more water

“After three consecutive years of drought, the recent series of storms is a good start to the season,” said Jeff Stephenson, water resources manager with the San Diego County Water Authority. “However, we had a similarly strong early winter last year, which did not continue. While the Water Authority and its 24 member agencies have worked and continue to develop diverse water supply sources, there are still opportunities, including rebates, to save more water.”

In San Diego County, watersmartsd.org, provides sources of residential and business rebates, including indoor and outdoor incentives, and free landscape makeover classes. 

Stephenson added that the region has reduced its reliance on imported water supplies, including from the Sacramento-San Joaquin Bay Delta, which means more of that source is available for other parts of California.

Strong start but “a long way to go”

The January 2023 manual snow survey results are similar to results in 2013 and 2022 when the January 1 snowpack was at or above average conditions, only for dry weather to set in and lead to drought conditions by the end of the water year (September 30).

In 2013, the first snow survey of the season also provided promising results after a wet December similar to today’s results. However, the following January and February were exceptionally dry, and the water year ended as the driest on record, contributing to a record-breaking drought. In 2022, record-breaking December snowfall was again followed by the driest January through March period on record.

“Big snow totals are always welcome, but we still have a long way to go before the critical April 1 total,” said DWR’s Snow Surveys and Water Supply Forecasting Unit Manager Sean de Guzman. “It’s always great to be above average this early in the season, but we must be resilient and remember what happened last year. If January through March of 2023 turn out to be similar to last year, we would still end the water year in severe drought with only half of an average year’s snowpack.”

Sierra snowpack supplies 30% of California’s water

On average, the Sierra snowpack supplies about 30% of California’s water needs and is an important factor in determining how DWR manages the state’s water resources. Its natural ability to store water is why the Sierra snowpack is often referred to as California’s “frozen reservoir.” A below-average snowpack impacts water users across the state, putting further stress on the environment and critical groundwater supplies.

Due to these increasing swings from dramatically wet to dry conditions, Governor Newsom’s recently released “California’s Water Supply Strategy, Adapting to a Hotter, Drier Future” calls for investing in new projects and technologies that will modernize how the state manages water.

Current climate research indicates the state will see bigger swings from extreme heat and dry conditions to larger and more powerful storms that deliver temporary large boosts to the state snowpack as well as flood risk.

DWR encourages Californians to visit SaveOurWater.com for water saving tips and information, and to continue to conserve California’s most precious resource, rain or shine. DWR conducts five snow surveys at Phillips Station each winter near the first of each month, January through April and, if necessary, May. The next survey is tentatively scheduled for February 1.