More atmospheric rivers are due to wash over us this weekend. These are the same kind of state-spanning bands of wet air responsible for dropping on the state in January.
But in a bit of irony that , the coming rain could actually complicate things in drought-plagued California by melting its snowpack too early.
This latest plume is now forecast to hit the northern and central regions of the state late Thursday. And unlike some prior storms, this one 鈥� a subtropical 鈥� is expected to be fairly warm.
That鈥檚 good news for those of us still recovering from our , sent skyward in part by the unusually cold weather.
But it could be bad news for those counting on California鈥檚 鈥� or for those living downstream.
- : 鈥淲e鈥檙e going to see rain on top of snow鈥e鈥檙e going to basically lose a lot of the snow that fell from the previous storms. We鈥檙e looking at potential for flooding.鈥�
There could be even more rain in California鈥檚 long-term forecast. New estimates from the World Meteorological Organization put good odds on the Pacific Ocean breaking from its three-year La Ni帽a pattern and . In California, that generally means more rain and accompanying , floods and coastal erosion.
Shored up? If coastal erosion in the face of rising seas is a public policy concern, you wouldn鈥檛 know it from Gov. Gavin Newsom鈥檚 draft budget. As CalMatters鈥� environment reporter Julie Cart explains, the governor proposes to by 43% in the face of a .
For all the talk of rain and flood, Californians are still battling over who has claim to the water flowing through the Sacramento-San Joaquin Delta.
Environmental groups on Monday asked state water regulators to rescind their to increase storage in California鈥檚 reservoirs.
The petition to the State Water Resources Control Board was submitted by 10 environmental groups, including the Natural Resources Defense Council, Save California Salmon and San Francisco Baykeeper.
The controversy centers on last month鈥檚 decision to waive basic flow standards for the Delta. The groups in their petition said the waiver would cause 鈥渋rreparable environmental harm and loss of fish,鈥� including Chinook salmon and tiny Delta smelt.
- : The order is 鈥渁rbitrary and capricious, contrary to law, and is not supported by substantial evidence.鈥�
What鈥檚 at stake?
Water that鈥檚 delivered to growers in the Central Valley and to cities, mostly in Southern California. Newsom and the water agencies have been under pressure to capture more water during storms instead of letting it flow into the ocean via San Francisco Bay. Growers and many Central Valley elected officials call this 鈥渨asted water.鈥� But the state鈥檚 rules require a certain amount of water to flow into the bay to assist fish, such as migrating salmon.
Water agency officials told CalMatters they are reviewing the petition, as well as other comments and current conditions, to see if any changes are warranted.
The water board鈥檚 executive director, Eileen Sobeck, has the waiver could harm threatened and endangered species of fish, but said the potential for a dry winter and spring, and the importance of boosting reservoir storage, justified the move. Those concerns could be water under the bridge as another powerful storm system threatens to dump so much water that reservoirs, which were at barely a quarter of their capacity in November, fill.
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