Significant Snowfall for Washington Cascades and Northern Rocky Mountains

A cold front will linger for several days from the Pacific Northwest to portions of the northern Plains early this week. Cold temperatures and copious moisture will combine to produce several feet of snow into the mountain passes, with up to 4 feet of snow down to 4000 feet in the northern Rockies. Travel through mountain passes will be very difficult.
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Hazardous Weather Conditions

Last Update: 234 PM PST Sun Dec 17 2017

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Portland, OR Local Forecast Office

24NM ENE Seaside OR

Marine Zone Forecast

...SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR IN EFFECT

Synopsis: A frontal boundary has largely stalled out across the northern waters. Low pressure drops south from the Gulf of Alaska Tuesday bringing a strong cold front with gale force winds. Conditions generally ease and improve for later in the week.

In The Main Channel
Combined seas 6 to 8 ft. However, seas will temporarily build to near 10 ft with breakers possible during the strong ebb around 415 pm today, and near 10 ft during the weaker ebb around 445 am monday.
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ABOUT THIS FORECAST

Last Update: 234 PM PST Sun Dec 17 2017
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