6:46 P.M. UPDATE: The American Red Cross is reopening its shelter in Elk Grove at 7 p.m. Tuesday as the Consumnes River is expected to reach flood stage in Wilton.
The Sacramento County Sheriff's Department has advised about 2,000 people in Wilton to voluntarily evacuate.
The National Weather Service forecasts the river to flow over the levee and flood homes along the southbank.
Authorities predict one foot of flooding in and around the community, which has about 5,000 residents.
Crews have been working to bolster the levee along the Cosumnes River channel as the water rises.
The weather will have the most impact during the overnight hours.
Rio Linda has also been placed under voluntary evacuations.
Some municipalities have declared local state of emergencies due to the flooding threat including Yuba County, where evaucations are also in place, and the city of Placerville.
Meanwhile, major highways in the region remain closed. Interstate 80 has been shut down due to blizzard conditions. Traffic on U.S. Highway 50 is being held for avalanche control. Officials say they don't see I-80 reopening before 9 p.m. The ETO for Highway 50 is at 4 a.m.
1 P.M. UPDATE: NWS Sacramento tweeted Tuesday that there may be damaging floods near Wilton overnight and those in the area should consider evacuating.
The Cosumnes River at Wilton has been under monitoring stage. Levels went down Monday night, but started increasing again on Tuesday.
The evacuation center at the Elk Grove Pavilion, at 9950 Elk Grove-Florin Rd, will reopen at 7 p.m.
Gusty winds of up to 60 miles per hour are expected to cause power outages, damage electricity lines and knock down trees.
12:18 P.M. UPDATE: Officials are holding traffic on U.S. Highway 50 at Twin Bridges for avalanche control.
There's no estimated time of opening.
10:30 A.M. UPDATE: Interstate 80 remains closed in both directions from Colfax to the California-Nevada Stateline.
8:24 A.M. UPDATE: Traffic has been released on U.S. Highway 50 over Echo Summit following avalanche control work. Chain controls are in effect.
View of Highway 50 on Tuesday, Jan. 10, 2017. @NHPNorthern / Twitter
6:45 A.M. UPDATE: A flood warning is still in effect for urban areas and small streams throughout Northern and Central California. The National Weather Service says the warning will remain in place through Thursday afternoon.
Early Tuesday, engineers with the state Department of Water Resources opened Sacramento River floodgates for the first time in more than a decade. Opening the Sacramento Weir gates, to direct water through a bypass, is intended to protect Sacramento from flooding.
Meanwhile in the Sierra, a winter storm warning is in effect through Thursday morning. Interstate 80 is closed from Colfax to the Nevada State Line because of reduced visibility.
6:30 A.M.: Crews have shut down Interstate 80 Tuesday morning, while traffic is being held on U.S. Highway 50 as another storm passes through Northern California and the Sierra.
A blizzard warning has been issued for the high Sierra through noon due to whiteout conditions and high avalanche danger.
Eastbound I-80 is closed at Colfax and the westbound direction of the highway is closed at the California-Nevada Stateline.
Traffic is being held on U.S. Highway 50 at Twin Bridges, Meyers, Echo Summit and Chiapa Drive for avalanche control.
Flood warnings are in place throughout the Sacramento Valley. High wind advisories are also in effect in the region.
The Cosumnes River at Wilton is once again at monitor stage at 71.5 feet.
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