Low snowpack_Colorado River
May 27, 2025

Low snowpack stirs 2018 fire seaon flashbacks, but wet monsoon season may offer hope

While the short-term expectation is a less active and shortened recreation season, there may be a better chance of precipitation in late summer.

Lake Oroville
May 22, 2025

California Reservoir Update as Lake Nears new Milestone

Lake Oroville has the potential to reach its full capacity of 900 feet, due to the high levels of snowfall from 2023 and 2024.

CASnowpackGetty-1020x680
May 22, 2025

California’s Snowpack Shrinks, Igniting Concerns of Early Wildfires

California’s peak average snowpack has decreased ad is melting fast than usual, causing concern over increased wildfire risk.

snotel-station-pnw
April 30, 2025

Snowpack Data Inform Decisions Across the Pacific Northwest

The Snow Survey and Water Supply Forecasting Program measures the annual snowpack volume in the Pacific Northwest, a critical water resource stored for uses such as agriculture and fisheries.

Snow
February 4, 2025

Improving Drought Predictions by Tackling Challenges in Simulating Snow

In a collaborative effort for better snow prediction, scientists are upgrading a well-known climate model to simulate sunlight reflection on snow.

groundwater_grace_2023_lrg
June 25, 2024

Groundwater Declines in U.S. Southwest

Record snowfall has not been enough to offset groundwater losses amid long-term drying and a heightened demand for the resource.

pexels-melike-sayar-melikesayar-8001411
April 2, 2024

Average is Awesome: California Happy With Latest Snowpack Survey

After years of swinging extremes, state snowpack is at rare average of 110%, setting up good water savings account for year ahead.

1970_09_07_BD_04052_024_Snow_Survey
April 1, 2024

Improving Seasonal Water Predictions Using a Machine-Learning River Forecast System

A WWAO collaboration has published a new paper on how to use next-generation satellite snow data to improve seasonal water supply forecasts using machine learning.

pexels-eberhard-grossgasteiger-1004682 (2)
March 28, 2024

California Mountains Face Weather Whiplash

Last month’s massive snowstorm in the Sierra Nevada followed a dry start to winter. Such extremes in precipitation may become the norm.

2023_05_12_ZZ_0031_Tulare_Lake
March 24, 2024

California Zombie Lake Turned Farmland to Water. Is it now Gone for Good?

Resurrected for the first time in decades by an epic deluge of winter rain and snow, by spring the lake covered more than 100,000 acres, stretching over cotton, tomato and pistachio fields and miles of roads.