The National Weather Service has issued a winter storm warning from noon Thursday until 7 a.m. Friday, predicting significant ice. The region could get up to half an inch of ice.

Officials say power outages and tree damage are possible, due to the ice, and travel could be difficult. Severe weather is expected throughout western Oregon. Telecommunications Network Operator

Freezing rain has made roads hazardous or impossible to use, especially at higher elevations in the Coast and Cascade mountain ranges, the Oregon Department of Transportation said.

"Stay off the highway for Thursday night if you can," the department said in a news release. "Highways may be closing due to the severe weather and multiple-vehicle crashes in the icy road conditions. It is impossible to estimate when each highway can reopen.'

Closures as of 11:30 p.m. included:

Eugene has delayed the opening of public offices and facilities, including community centers, libraries and administration, until 10 a.m. Friday.

911, fire and emergency services continue to operate as usual.

Other Friday closures and delays include:

Oregon appellate courts, tax court, state court administrative office and Supreme Court: Partially closed Friday for the purpose of staffing public counters and filing documents. Scheduled remote hearings will continue. The closure won't impact eFilings systems, remote access to case records or issuance of decisions. Employees will work offsite or remotely.

Oregon state offices: All state government offices except courts and legislative offices will be closed Friday in the Portland and Salem metro areas. Visit www.oregon.gov/das for more info.

Points West Credit Union: Closed Friday.

Lane Transit District and Ridesource have discontinued bus service due to ice and poor road conditions.

Service will resume at 9 a.m. Friday if conditions improve.

See ltd.org for the most current Friday service information.

The National Weather Service Storm Prediction Center issued a report on Oregon's freezing rain, listing it as "concerning."

According to the report, portions of the Willamette Valley are more likely to see greater accretions of freezing rain than areas to the north.

Lane County Public Works has closed 30th Avenue in Eugene from Interstate 5 to Spring Boulevard, where county maintenance of the road begins. 

“There are more than 20 cars off the road on that stretch of 30th Avenue right now,” said Lane County Road Maintenance Manager Orin Schumacher. “We can’t stress enough how dangerous the roads are tonight and how important it is that people stay home.”

Lane County crews will work through the night, but deicer and sand have a limited effect during freezing rain and ice events.

Other road closures until conditions improve include:

“The best place to be right now is home and off the roads,” Schumacher said.

Eugene Police said there have been a lot of vehicle crashes on "super slick" roads this evening.

"Stay home if you can," the department said in a news release. "If you absolutely have to go out, please drive very carefully. Don’t call 911 unless you have an emergency."

The University of Oregon Eugene campus is closed from 8 p.m. Thursday through Friday. The Portland campus is also closed Friday.

All events are cancelled and all offices are closed. Employees who are able to work remotely and are not scheduled to be off are expected to work remotely.

Those required to be on campus should use caution while outside and watch out for downed trees or power lines. Students who live on campus should be careful traveling to residence halls and dining venues and limit campus travel as much as possible. Walkways and public transportation may be limited.

Eugene has declared an ice/snow emergency, effective immediately. All vehicles must be removed immediately from designated snow emergency routes to help ensure emergency vehicles, buses and other essential traffic can move safely around town and so parked vehicles don't impact snow removal efforts.

A map of those roads can be found at eugene-or.gov/snow

The ban is in effect until further notice.

Public Works are sanding elevated surfaces near signalized intersections and in the south hills.

The Oregon Department of Transportation is reporting a crash on Oregon 99 about six miles north of Eugene that is affecting all lanes. Motorists can expect at least a 20-minute delay until about 8:30 p.m. Ice has been reported on the highway.

Traffic is light in the Eugene and Springfield region but roads are icy, according to TripCheck.com. Public safety officials are advising drivers to stay home if they can, and drive carefully if they have to go out.

Eugene pools: All pools will have a delayed 9 a.m. opening Friday.

Oregon Department of Motor Vehicles: Oregon DMV locations in Eugene, Springfield, Cottage Grove, Junction City, Florence and Oakridge will be closed through noon Friday.

Springfield: Springfield Municipal Court, City Hall and public library will open at 10 a.m. Friday. Springfield Municipal Court will send automated text messages, emails and phone calls to let individuals know if their court dates have been rescheduled.

State of Oregon offices: State offices in Lane, Clatsop, Lincoln and Tillamook counties are closed Friday. Because Monday is the official Christmas holiday, state offices will resume normal business hours Tuesday. This does not include courts or legislative offices. Visit oregon.gov/das/ for more information on state office closures.

More than a dozen flights in and out of Eugene Airport and nearly 50 in and out of Portland International have been canceled so far today, according to the tracking website flightaware.com.

More cancelations are expected Friday.

Egan Warming Centers have been activated for Thursday night. Shuttles are available behind First Christian Church, 1166 Oak St., from 6:30 p.m. to midnight and starting again at 6:30 a.m. to take people back downtown or to St. Vincent de Paul's Eugene Service Station.

The latest National Weather Service forecast for Eugene shows freezing rain overnight until the temperature rises to about 37 degrees by 5 a.m. Friday.

Rain is expected Friday and through Tuesday.

Some schools, businesses and government offices are beginning to announce early closures Thursday in anticipation of inclement weather. Here are the ones we've seen so far:

Eugene pools: All pools will have a delayed 9 a.m. opening Friday.

Lane Community College: All Lane Community College locations will be closing at 2 p.m.

Lane Council of Governments: Closing at 2 p.m.

Oregon Department of Motor Vehicles: Oregon DMV locations in Eugene, Springfield, Cottage Grove, Junction City, Florence and Oakridge will be closed Thursday through noon Friday.

State of Oregon offices: State offices in Lane County are closed through noon Friday. This does not include courts or legislative offices. Visit oregon.gov/das/ for more information on state office closures.

Willamalane: Bob Keefer Center closing at 5 p.m. Splash! closing at 3 p.m.

- Rapid Access Center closing at 3:30 p.m. - Health Clinic closing at 3:30 p.m. - Springfield (Centennial) location closing at 3:30 p.m., except for UA services. - UA services at the Springfield (Centennial) location open until 5 p.m. - Outpatient night groups are canceled. - Child Development Center closing at 3:30 p.m. - Transportation Services limited to emergency transport only. - All other services are unchanged.

The National Weather Service's updated forecast says snow is likely before 4 p.m., and then freezing rain possibly mixed with snow. Little to no snow accumulation is expected during the day but ice accumulation is expected overnight.

Heading out of town? Check the weather conditions along your route by visiting tripcheck.com or calling 511 for current road conditions first.

10u Network Cabinet Consider bringing an emergency kit in your vehicle with you, just in case. Include a flashlight, snow and ice scraper, first-aid kit, blanket, food, water jumper cables and a spare tire.