Tag Archive for: Atmospheric Rivers

Update: How the Recent Storms Impacted San Diego’s Water Supply in Reservoirs

With recent storm systems that swept through the west, California has seen more precipitation this year than normal, bringing the water supply stored in reservoirs — both locally and across the state — up from historic lows to levels that are some of the highest in years.

And with drought conditions having improved in much of California, experts say that the amount of water captured from this year’s particularly wet winter could help ease the impact of hotter, drier weather in San Diego, as the state recovers its depleted water supplies.

How the Recent Storms Impacted San Diego’s Water Supply in Reservoirs

With recent storm systems that swept through the west, California has seen more precipitation this year than normal, bringing the water supply stored in reservoirs — both locally and across the state — up from historic lows to levels that are some of the highest in years.

And with drought conditions having improved in much of California, experts say that the amount of water captured from this year’s particularly wet winter could help ease the impact of hotter, drier weather in San Diego, as the state recovers its depleted water supplies.

Reservoir Releases Underway as California Braces for Atmospheric Rivers

Once mired in drought, California now has too much of a good thing and has opened spillways on key reservoirs as the first of two atmospheric rivers made landfall Thursday afternoon.

The Golden State activated the Flood Operation Center ahead of the incoming storms, to notify officials of high water levels and support local flood relief efforts.

Calif. Reservoir Levels Show Signs of Improvement After Recent Winter Storms

All of this rain in California has had positive impacts on some of the state’s main reservoirs. Though officials say reservoir levels have seen major improvements, we’re not out of the drought yet.

“California, statewide is at 131% of average precipitation,” said Jeanine Jones, interstate resources manager for the California Department of Water Resources, “What that means is that a lot of our reservoirs have had the opportunity to improve significantly, compared to last year or the year before. Most of our reservoirs are fairly close to full.”

How Weather Forecasts Can Help Dams Supply More Water

Between Christmas and January this year, a parade of nine atmospheric rivers — vast streams of water vapor flowing east from the tropical Pacific — pummeled California. The trillions of gallons of rain poured on the state caused widespread flooding. While the rain topped up some drought-depleted reservoirs and aquifers and filled out snowpack in the Sierra Nevada, much of the water quickly ran off into the sea, flowing off asphalt and farms or released from reservoirs to prevent further flooding.

With All This Rain and Snow, Can California Really Still Be in a Drought? Look Deeper

Only weeks after a series of atmospheric rivers deluged California, the state is once again bracing for powerful winter weather that could deliver heaps of rain and snow, including fresh powder at elevations as low as 1,500 feet.

But as worsening climate extremes and water supply challenges continue to bedevil the state, officials cautioned residents Tuesday not to assume that the recent moisture signaled an end to the drought.

Benefits of Rainstorms in Sonoma County Far Outweighed Damage They Caused

Their timing wasn’t great.

After moving to Sonoma County from Santa Monica in 2020, Kim and David Lockhart purchased River’s Edge Kayak & Canoe in Healdsburg. Heavy rains across the region the year before had caused widespread flooding, especially along the lower Russian River.

Dramatic Photos Show Lake Oroville’s Rise After Epic Storms

Lake Oroville, a key component of California’s water supply, looks noticeably fuller after a series of January storms.

The atmospheric rivers dumped trillions of gallons of moisture on the state, spurring widespread flooding and destruction but also providing a healthy boost to snowpack and drought-sapped reservoirs.

California Storms Left Behind a ‘Generational Snowpack.’ What That Means.

California’s mountain snowpack is the largest it’s been in decades, thanks to a barrage of atmospheric rivers in late December into January. The snow is a boon for the state’s water supply but could also pose a flood risk as the season progresses.

Measurements completed last week show that Sierra Nevada snow water content is rivaling or outpacing the 1982-83 season, the biggest snow year in the past 40 years. Up to two feet of additional snow fell on the region this weekend.

Atmospheric Rivers Aren’t Just a Problem for California. They’re Changing the Arctic, Too

The Arctic is seeing a rapid decline in sea ice even during the cold winter months when it should be recovering from the summer melt. Scientists say that one often-overlooked factor is playing a bigger role than previously thought: Atmospheric rivers.

These long, narrow bands of moisture in the atmosphere transport warm air and water vapor from the tropics. They can extend for thousands of miles and dump rain and snow when they make landfall.