About two-thirds of an inch of rain fell on western Nevada County Wednesday, according to weather officials.
And a reprieve from the rainfall will not likely come until late Sunday or early Monday, said Stefanie Henry, meteorologist with the National Weather Service.
Wednesday featured intermittent bouts of rainfall, but beginning tonight, the precipitation will become more steady and more torrential, lasting through Saturday, Henry said.
On Saturday, another storm system is expected to trundle through Northern California, bringing even more precipitation in tow, she said.
Throughout the wet weekend, high winds will accompany the rain.
A wind advisory is scheduled to take effect on 4 p.m. today and last until 1 p.m. Friday, Henry said.
Winds will come out of the southeast at 20 to 30 mph with gusts up to 40 mph.
Wind velocity is expected to decrease slightly but not completely abate through the weekend.
Despite originating from a low-pressure system in the Gulf of Alaska, the storm is unseasonably warm due to the inordinate strength of the system.
“The low-pressure system is strong enough that it is sucking up moisture from the tropics and pouring it in Northern California and the Pacific Northwest,” Henry said.
Up the hill, snow is expected at above 7,000 feet elevation throughout Friday, but that elevation level will continue to go up as the storm progresses throughout the weekend.
A winter weather advisory is expected to take hold at 4 p.m. today and last until 4 p.m. Friday for elevations above 7,00 feet, Henry said.
In 2011, preliminary data indicates that 44.25 inches of precipitation fell on the greater Grass Valley area, Henry said. Thus far in 2012, about 43.32 inches of rain has fallen (this does not include November).
The three-month forecast still calls for a drier-than-normal winter season with December, January and February predicted to be relatively dry months; however, Henry cautioned that November was forecasted to be dry as well.
As of 4 p.m. Wednesday, chain controls were in effect on Interstate 80 from Kingvale to Donner Lake Interchange, but chain controls are implemented on a real-time basis according to conditions on the ground, said Rochelle Jenkins, a Caltrans spokesperson.
Motorists are encouraged to visit www.quickmap.dot.ca.gov for up-to-the minute reports on road conditions and chain requirements. People can also call (800) 427-ROAD.
To contact Staff Writer Matthew Renda, email firstname.lastname@example.org or call (530) 477-4239.