Update as of 1:30 p.m. on Dec. 12:

Chain control has been lifted on I-80 over Donner Summit and on SR-267 over Brockway Summit.

Upate as of 1:15 p.m. on Dec. 12:

Chain controls are in effect on SR-28 from:

• US-50 to Secret Harbor Chain Up Area
  
• Secret Harbor Chain Up Area to Memorial Point Scenic Overlook
  
• SMemorial Point Scenic Overlook to SR-431 (Mt. Rose Hwy)
  
• SSR-431 (Mt. Rose Hwy) to Crystal Bay, Nevada
  

Chain controls are in effect on Mt. Rose Hwy from:

• Fairview Blvd to Diamond Peak
  
• Diamond Peak to Incline Lake Recreation Area
  
• SR-28 to Fairview Blvd
  
• Mt. Rose (Mile Marker 10) to Old Mt. Rose Hwy
  
• Old Mt. Rose Hwy to Sunridge Dr
  
• Sunridge Dr to Douglas Fir Dr
  
• Douglas Fir Dr to Timberline Dr
  

Chain controls are in effect on I-80 from:

• I-80 From Incline Lake Recreation Area to Mt. Rose (Mile Marker 10)
  

Update as of 11 a.m. on Dec. 12:

Chain controls are in place in the following areas:

• I-80 is R2 in both directions from Truckee to Nyack.
• SR-89 is R2 from Truckee to Tahoe City.
• SR-28 is R1 from Tahoe City to Kings Beach.
• SR-267 R2 from Northstar to Kings Beach.

Big rigs are at minimum restrictions.

Update as of 8:45 a.m. on Dec. 12:

Mt. Rose Highway reopened after an avalanche and stuck vehicles led to a shutdown. Chains or snow tires are required between U.S. 395 Alt and Mt. Rose Ski Tahoe.

The highway remains closed over Mt. Rose summit.

Update as of 7:15 a.m. on Dec. 12:

Chain controls are in effect from:

• Mt. Rose Hwy from Thomas Creek Road to S. Virginia St
  
• Mt. Rose (Mile Marker 10) to Old Mt. Rose Hwy
  
• Old Mt. Rose Hwy to Sunridge Dr
  
• Sunridge Dr to Douglas Fir Dr
  
• Douglas Fir Dr to Timberline Dr
• Timberline Dr to Thomas Creek Rd
  

Update as of 5:30 a.m. on Dec. 12:

Chain controls are in effect on:

• I-80 in both directions from the Nevada State line to Drumforebay.
  
• SR-267 from Northstar to Kings Beach.
• SR-28 from Tahoe City to Kings Beach.
• SR-89 from Truckee to Tahoe City.
• US-395 from the California border to Buckeye Rd.
  
• SR-208 from US-395 to SR-339.
  

Trucks are at minimum restrictions.

Update as of 4:50 p.m. on Dec. 11:

Chain controls are in effect in the following areas. Big rigs are still being held.

• I-80 in both directions from the Nevada State line to Drum Forebay.
• SR-89 from Truckee to Tahoe City.
• SR-28 from Tahoe City to Kings Beach.
• SR-267 from Northstar to Kings Beach.

Update as of 4:25 p.m. on Dec. 11:

Chain controls are in effect on US-50 from Mile Marker CC-1 to Mile Marker CC-6 and on SR-338 From California border to SR-208.

Update as of 4 p.m. on Dec. 11:

Chain controls are in effect on US-50 from Mile Marker CC-6 to US-395.

Update as of 3 p.m. on Dec. 11:

US-50 has reopened between Meyers and Placerville. Chains are still required.

Update as of 1:40 p.m. on Dec. 11:

US-50 is closed from 3 miles east of Placerville to 1.5 miles west of Kyburz due to vehicle spinouts. There is no estimated time of reopening.

Chain control speed limit on US-50 is 25 mph.

Chain controls are in effect on I-580 from Eastlake Blvd. to US-395-ALT.

Update as of 1:15 p.m. on Dec. 11:

Trucks are being turned back on I-80 eastbound at Applegate and westbound at Stateline. Eastbound Highway 20 closed at Nevada St. in Nevada City.

Eastbound I-80 Gold Run Rest Area is closed.

Update as of 12:35 p.m. on Dec. 11:

Chain controls are in effect on:

• I-80 in both directions from the Nevada State line to Alta.
• SR-89 from Truckee to Tahoe City.
• SR-28 from Tahoe City to Kings Beach.

In addition, SR-267 is closed from Northstar to Kings Beach and big rigs are still being held.

Update as of 11:25 a.m. on Dec. 11:

Chain controls are in effect on I-80 eastbound from Alta to Stateline and westbound from Stateline to Alta.

Update as of 10 a.m. on Dec. 11:

Mt. Rose Hwy remains closed after heavy snow on Saturday night.

Update as of 9:30 a.m. on Dec. 11:

I-80 has reopened for passenger vehicles after an overnight closure. Trucks are still being turned around at Colfax and Stateline.

Update as of 8:45 a.m. on Dec. 11:

I-80 between the Nevada-California state line an Colfax remains closed Sunday morning as heavy snow continues to fall in the Sierra.

The interstate shut down on Saturday evening when whiteout conditions and strong winds emerged. Caltrans said there's no estimated time for reopening the roadway.

Snow is forecasted to fall in the higher elevations until this afternoon.

Chains and or snow tires are required on the following mountain passes:

• SR-89: Picketts Junction to Luthers Pass
• SR-89: Closed from Emerald Bay to Bliss State Park
• SR-267: One mile south of Truckee to Kings Beach
• US-50: Three miles east of Placerville to Meyers

Update as of 5 p.m. on Dec. 10:

Chain controls are in effect on SR-28 from:

• US-50 to Secret Harbor Chain Up Area
  
• Secret Harbor Chain Up Area to Memorial Point Scenic Overlook
  
• Memorial Point Scenic Overlook to Mt. Rose Hwy
  
• Mt. Rose Hwy to Crystal Bay
  

Update as of 4 p.m. on Dec. 10:

Eastbound traffic is being turned around in Colfax in the Sierra and westbound traffic is being turned at the California-Nevada state line. SR-20 closed at Nevada St. in Nevada City.

Chain controls are in effect on SR-338 from the California border to SR-208.

Updated at 3:45 p.m. on Dec. 10:

I-80 is shutting down between Kingvale and Truckee in the Sierra because of snowy conditions. Traffic is being turned around in Kingvale for eastbound travelers and Truckee for westbound motorists. There is no estimated time of reopening.

Updated at 3:15 p.m. on Dec. 10:

I-80 traffic is being held in the Sierra due to multiple vehicle spinouts and snowy conditions. Traffic is being held eastbound at Kingvale and westbound in Truckee.

Chain controls are in effect on Geiger Grade Road from Veterans Pkwy to US-50 and on SR341 from Silver City to Virginia City.

Updated 2:30 p.m. Dec. 10:

Chain controls are in effect on Mount Rose Highway from:

• Sunridge Dr to Douglas Fir Dr
  
• Douglas Fir Dr to Timberline Dr
  
• SR-28 to Fairview Blvd
  
• Fairview Blvd to Diamond Peak
  
• From Diamond Peak to Incline Lake Recreation Area
  

Updated 10:30 a.m. on Dec. 10:

Chain controls are in effect on I-80 westbound is R2 from Truckee to Nyack and I-80 eastbound is R2 from Nyack to Boca.

Trucks are at maximum restrictions.

UPDATED as of 9:50 a.m. on Dec. 10:

State Highway 89 is closed between Emerald Bay State Park and D.L. Bliss State Park in the Lake Tahoe Basin area because of heavy snow conditions. There's no estimated time of reopening.

UPDATED as of 9:15 a.m. on Dec. 10:

Chain controls are in effect on Saturday morning on the following Nevada roads:

On SR-28 from:

• US-50 to Secret Harbor
• Secret Harbor Chain Up Area to Memorial Point Scenic Overlook
  
• Memorial Point Scenic Overlook to SR-431 (Mt. Rose Hwy)
  
• SR-431 (Mt. Rose Hwy) to Crystal Bay
  

On Kingsbury Grade Rd from:

• US-50 to Dagget Pass Chain-Up Area
  
• Dagget Pass Chain-Up Area to Mile Marker DO-7

On Mount Rose Highway from:

• Thomas Creek Road to S. Virginia St
  
• Timberline Dr to Thomas Creek Rd

UPDATED as of 8:50 p.m. on December 9

Chain controls are back on Donner Summit Friday night. This system is expected to be in effect through Saturday morning.

Chains are required on all vehicles except 4-wheel drive with snow tires on the following I-80 roads, trucks are on minimum restrictions.

• EB I-80 from Kingwavle to Donner Lake Interchange
• WB I-80 from Donner Lake Interchange to Rainbow

UPDATED as 12:20 p.m. on December 9

Chain control has been dropped over Donner Summit for now. The second system is expected to ramp back up Friday night into Saturday morning. Travel is expected to be near impossible at times throughout the weekend.

UPDATED as of 8 a.m. on December 9

If you need to get over Donner Summit, Friday morning is the time to do it. The National Weather Service in Reno says travel is expected to be "treacherous" at times over the course of the weekend.

Chain controls or snow tires are required as of Friday morning on the following mountain passes:

• I-80: Truckee to Drum Forebay in both directions
• SR-89: Truckee to Tahoe City
• SR-267: Northstar to Kings Beach

A set of winter storms brings chain controls to Nevada and California mountain passes as of Thursday night.

Winter advisory is in effect for Donner Pass and the Sierra crest Thursday night starting at 10 p.m. and ends at 4 a.m. on Friday. This does not include Truckee or Lake Tahoe.

Chains are required on all vehicles except 4-wheel drive with snow tires on the following Nevada and California passes.

Nevada

• SR-431 (Mt. Rose Highway): from Sun Ridge Dr. to SR-28
• US-50: from Stateline to Carson City County line; from Twin Bridges to SR-89
• SR-207 (Kingsbury Grade Road): Mottsville to Stateline

California

• I-80: from Drum Forebay to Truckee

Check back with us for updates.