I-90 was closed at Denny Creek for two hours Monday afternoon because of multiple spin-outs and disabled vehicles.

The heavy snow and dangerous driving conditions also closed I-90 and U.S. 2 for hours over the Cascades early Monday. The Washington Department of Transportation reopened the passes late on Monday morning, but chains are requiring chains on most vehicles. Check pass conditions

Stevens Pass remained open, but drivers were required to have chains on all vehicles except those with all-wheel drive. Oversized vehicles were not allowed.

Passenger train service between Seattle and Everett is expected to reopen late Tuesday night after several mudslides came onto the train tracks. In the meantime, Sound Transit will provide bus service to and from north line Sounder stations

The snowfall will be a major boost to ski areas that have suffered under a dry winter.

Crystal Mount reported 48-hour snow total of 40 inches, but the resort was closed due to a power outage. One area called Gold Hill remained open, though skiers had to hike up 800 feet to reach it.

The Summit at Snoqualmie reported that Alpental and Summit Central were both open for skiing. Stevens Pass was also open.

Stevens Pass Mountain Resort reported that a 32-year-old skier died Monday after he hit a rock and suffered a head injury.

KING5 Meteorologist Jeff Renner said another weather system is expected to move in Tuesday, bringing another round of rain and wind to the lowlands and heavy snow to the mountains.

The heaviest rain will likely be between 10 am and 3 pm. Up to an inch will be likely in places. Check the forecast

Once the cold front moves through, snow levels will begin to drop, and may bottom out around 1,000 to 1,500' on Wednesday. That could bring mixed snow/rain or wet snow on some of the higher inland hills-such as Tiger, Cougar, Squak and the Somerset area, Renner said.

In the mountain passes, heavy snow will be likely with up to a foot of snow Tuesday and again Wednesday, and possibly more than a foot Thursday.

Closer to sea level, the onshore flow of cool, moist and unstable air Wednesday could set off not only rain showers, but also isolated ice pellet or thundershowers.

Flood warnings are in effect for the Chehalis, Skookumchuck, Newaukum, Deschutes and Skokomish rivers.

Download the WeatherCasterApp and the Seattle Traffic App for updates on the go.

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