The National Weather Service says a significant storm will bring between a quarter and a half-an-inch of rain to the valley and up to 2.5 inches of rain to the Sierra.
David Rowe with the weather service says there will be snow too.
"Probably about a foot to a foot and a half at the ski areas and maybe 2 to 3 inches down to about 4,500 feet," says Rowe.
Rowe says there are also flooding concerns in areas scarred by wildfire last summer -- for example the Rim Fire near Yosemite.
"When you get heavy rainfall intensity in a short amount of time, you tend to get mud and dust and debris left over from the fires last summer that'll accumulate and run downhill," he says.
Rowe says this will be a significant storm, but the region needs a series of these storms to start recovering from the drought. He says the forecast is dry again for the weekend and early next week.
Rowe urges valley commuters to use caution, especially Thursday morning, when the roads are likely to be slick, and says chains will likely be required in the Sierra.
The weather is about to change. Attached is the NOAA prediction for snow onI-80. Be prepared for winter driving. pic.twitter.com/kEvvfGXHAo— Caltrans District 3 (@D3PIO) January 28, 2014
Parts of California just witnessed the driest February ever, and there’s around an 80 percent chance the state will enter a full-blown drought this year. If that happens, it could be the third-driest year in just over a century.
When it comes to rain and snow most of California is running below average this year, and little is forecast in the near future.
If you spent time on the water at Lake Tahoe last year and thought it looked a lot cloudier, you're right. UC Davis researchers say extreme weather — drought followed by heavy rains — caused clarity in 2017 to drop to its lowest recorded level.
(AP) — Despite dry conditions in much of the state, water managers say it's too early for fears that California is sliding back into drought as abruptly as the state fell out of it.
Caltrans is worried about the possibility of dead trees falling onto some California highways. The agency has already removed 107,000 trees. Now the agency is getting ready to remove another 54,000 trees, including some on private land.
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