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Late December Storms Deliver Much-Needed Snowpack and Water Supply for California

The Department of Water Resources conducted the first snow survey of the season at Phillips Station on Dec. 30. The manual survey recorded 24 inches of snow depth and a snow water equivalent of 5 inches, which is 50 percent of average for this 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 was 71 percent of average for this date.

The results are welcome news for water managers who rely on the statewide snow surveys to make water supply decisions for the year ahead. California’s statewide snowpack had been lacking in early December with above-average temperatures and very little storm activity. Recent storms have turned that around and provided a significant boost to the snowpack and the state’s water supply.

Trump Administration Proposes Colorado River Options That Could Hit California Hard

The Trump administration has released an outline of four new options for dealing with the Colorado River’s deepening water shortages, and they could dramatically cut the amount of water available for Southern California.

Several of the alternatives are “alarming” because they could mean major water cutbacks for Southern California, said Shivaji Deshmukh, general manager of the Metropolitan Water District, which distributes water in the region.

Farmers Pioneer Water Solutions as Colorado River Dwindles

Farmers in two of Southern California’s ag-centric irrigation districts have long been playing their part to slow the decline in the Colorado River’s system supply. They do this while working with Metropolitan Water District of Southern California to provide water to 19 million urban residents.

Blythe farmer Grant Chaffin is working toward a solution that could help him farm with less irrigation water from the Colorado River. Chaffin knows his solution won’t solve long-term drought but can help him better manage the irrigation water he has.

Fellow Water Professionals Praise Arant on Retirement

Gary Arant has been enjoying several “farewells” over the past few weeks upon his retirement from general manager of the Valley Center Municipal Water District (VCMWD) after 36 years, but the sweetest may be the tributes from fellow water professionals and public officials at a special board meeting on Monday, January 5 at the district board room.

It began with praise by his successor, Lindsay Leahy, who declared, “I’m honored to follow in your footsteps,” and board President Enrico Ferro presenting a plaque “recognizing and commending” Arant’s 56 years in the business—including 36 at VCMWD and proclaiming “Water Titan Day.” Ferro recognized Arant for “Consistently placing the needs of the community [at the highest level], and protecting the district’s long-term interests” while “building trust and collaboration.”

The Western U.S. Is in a Snow Drought, Raising Fears for Summer Water Supplies

Brad Riesenberg has worked in the winter sports industry for more than 20 years, and he’s never seen a winter with such paltry snowfall and mild temperatures as he has this season. Riesenberg, who is an owner at Backcountry Snowmobiling in Park City, Utah, said customers have been canceling their tours due to a lack of snow. Snowmobiling requires a thick snowpack at lower elevations in order to be viable, Riesenberg pointed out.

“We’ve lost lots and lots of money and it’s been pretty tough,” he said. “This is up there with some of the worst [winters], if not the worst.”

First Time in 25 Years: U.S. Drought Monitor Shows No Dry Areas in California

For the first time in 25 years, the US Drought Monitor shows that no area of California is experiencing unusually dry or drought conditions. The Drought Monitor tracks and reports on the development or recovery of short and long-term drought patterns across the U.S.

Experts analyze recent rainfall, snowpack, streamflow, soil moisture and climatology to assess the severity of drought conditions, ranking them on a scale ranging from “abnormally dry” to “extreme drought.”

U.S., Mexico Reach Long-Sought After Water Shortage Agreement Under 1944 Treaty

The United States and Mexico have reached a long-sought understanding under the 1944 Water Treaty that promises immediate relief for Texas farmers and ranchers while setting a path to repay years of overdue water deliveries from the Rio Grande.

Under the agreement announced today, Mexico will begin releasing 202,000 acre-feet of water to the United States starting the week of December 15, 2025, addressing obligations from the current five-year treaty cycle and helping repay deficits carried over from the previous cycle. Officials from both nations said negotiations are ongoing, with a comprehensive repayment plan expected to be finalized by January 31, 2026.

Newsom’s Signature Water Tunnel Is Set Back by California Court Ruling

In a decision that could complicate Gov. Gavin Newsom’s push to build a giant water tunnel and remake California’s water system, a state appeals court has rejected the state’s plan for financing the project.

The 3rd District Court of Appeal ruled against the state Department of Water Resources’ plan to issue billions of dollars in bonds to build the 45-mile tunnel beneath the Sacramento-San Joaquin River Delta.

New Study Issues Dire Warning About Worsening Conditions in Major U.S. River: ‘The Outlook … Does Not Look Good’

The Rio Grande Basin is experiencing pronounced aridification, with a trend toward persistently warmer, drier conditions. These conditions now mark a “new normal” for the region and exemplify a broader pattern among bodies of water worldwide.

As the Alamosa Citizen reported, the Rio Grande Basin experienced atypical weather patterns in 2025, characterized by prolonged warm, dry periods followed by late-season heavy rains.

Latest Snowpack Measurements Show California Water Supplies in Decent Shape

Despite a slow start, California’s snowpack has started to catch up to historical averages for this time of year across the central and southern Sierra Nevada. The northern portion of the mountain range — responsible for roughly 30% of Southern California’s water — continues to lag behind.

The northern Sierra is at 61% of normal, while the central Sierra is at 93%. The southern Sierra is at 114%. Large amounts of Southern California’s water come from the Sierra Nevada.