4:45 P.M. UPDATE: A big rig is overturned on a flooded road west of Lincoln in Placer County. Authorities are urging drivers not to drive on roads marked flooded or closed, or with visible standing water on them.
The National Weather Service Sacramento says flooding will continue as another storm moves into the area tuesday.
3:10 P.M. UPDATE: National Weather Service Sacramento says isolated thunderstorms are developing this afternoon north of Sacramento. Heavy rains, ocasional lightning and funnel clouds are expected.
Twitter user @Marywest530 spotted a possible funnel cloud in Placer County.
11 A.M. UPDATE: Westbound Interstate 80 reopened Monday and chain controls are in effect over Donner Summit.
The highway was shut down Sunday due to a massive mudslide caused by the storm. The eastbound direction at Colfax was also shut down due to power lines on the roadway. That side was reopened by 8 a.m. Monday.
Meanwhile, water officials in Sacramento say a boil has occurred on the Cosumnes River levee near the Wilton Road Bridge. Motorists are being asked to avoid the area while crews work on the levee.
A boil has occurred on the Cosumnes River levee at near the Wilton Road bridge. Please avoid the area while crews work on the levee.— Sacramento Co Water (@SacCountyWater) January 9, 2017
9 A.M. UPDATE: Throughout Northern California, state officials are watching for potential flooding after record-setting rains. The state Department of Water Resources says most of the risk of flooding has subsided for now, but the flows that crested on the upper parts of large waterways are heading downstream.
Mitch Russo is the intel chief for the state's Flood Operations Center. He says the Russian River could still see some flooding along the lower parts of the river.
"The flood wave has crested in the recent past in the upper reaches, but has yet to arrive in Guerneville," says Russo. "The last forecast I have seen, we're expecting a couple feet above flood stage in Guerneville."
The state Flood Operations Center is also monitoring the Yuba River, which is forecasted to crest about one to two feet below flood stage later today. The Yuba River is uncontrolled for the lower two-thirds of the waterway.
8 A.M. UPDATE: The warm tropical storm system over the weekend dumped more than a foot of rain in the Sierra. It triggered road closures and local flooding across the region.
As of 8 a.m., crews reopened eastbound Interstate 80 from Colfax to Stateline. The area was shut down due to power lines on the roadway. Meanwhile, crews are still working to clear a mudslide on the westbound direction of I-80 near Truckee. Traffic in both directions was shut down Sunday night.
#CAflood :Good news I-80 eastbound from Colfax to the Stateline is reopening to the traveling public ,due to power lines in the roadway .— Caltrans District 3 (@CaltransDist3) January 9, 2017
Forecasters say there won't be much of a break in the weather -- another, colder storm is due to hit northern California Tuesday.
"It will be colder," says Jim Matthews, a meteorologist with the National Weather Service in Sacramento. "Snow levels will be much lower, down to around 4- to 5,000 feet. And there will be several feet of snow falling over the Sierra from the storm on Tuesday-Wednesday."
The Weather Service is forecasting high winds of more than 25 miles an hour, with gusts up to 50 miles an hour in the Sacramento Valley. After the next storm, a drying trend will start on Friday.
Hundreds of people fled homes in Northern California and Nevada as this massive winter storm packing heavy rain, strong winds and lightning caused mudslides and widespread flooding. The Russian River in Sonoma County and the Truckee River near Reno, overtopped their banks late Sunday and officials say both waterways could stay at the flood stage for days. Schools are canceled Monday in hard-hit Sonoma County, where thousands are without power and many roads are unpassable.
The California Department of Water Resources says it will need to open the Sacramento Weir as early as midday Monday.
7:48 AM UPDATE: Sacramento rain totals broke the single day record for Jan. 8 by almost 0.5-inch.
CapRadio's Bob Moffitt reports flooding in Yuba County.
Yuba flooding of businesses homes peach tree golf club estimated at 3-4 feet NWS forecast for yuba is continued decreases until 2am wed— Bob Moffitt (@BobMoffitt) January 9, 2017
7 A.M. UPDATE: Heavy storms over the weekend have put the Sacramento region on a record-setting pace for rain totals.
"Since Saturday, about 2.5 to 3.5 inches of rain fell in the Sacramento area," says Jim Matthews, a meteorologist with the National Weather Service in Sacramento. "Just a little bit father to the east, up in the Motherlode, we've had about 4 to 6 inches of rain. And in some places in the higher elevations of the Sierra had over 12 inches of rain in a three-day period."
The Pineapple Express storm system beat the single day record for Jan. 8 by about .5-inch with 1.96 inches of rain.
Sacramento's wettest water year, the winter of 1982 and 1983, saw more than 32 inches of rain by Jan. 8, and as of last night the current total is 36.3 inches.
6:41 A.M. UPDATE: The massive winter storm triggered flooding and mudslides throughout Northern California.
In the Sacramento region, the Consumnes River at Michigan Bar near Wilton has reache the 12-foot flood stage.
No major outages have been reported by SMUD. But PGE is reporting some outages in Grass Valley, Nevada, Lodi and Placerville.
Original Post: A 60-foot-mudslide near Donner Lake forced the closure of Interstate 80 on both sides at around 6 p.m. Sunday night.
The mudslide is not expected to be cleared until Monday afternoon, California Highway Patrol reported on the Caltrans QuickMap.
About 10 minutes later, foot traffic west of the mudslide was closed because of downed power lines.
A hard closure of the road around Colfax was also enforced.