Arctic Air Plunges into the Great Lakes, Northeast and Mid-Atlantic

Arctic air dropping through the northern and eastern U.S. and a storm off the east coast will bring periods of snow, very cold wind chills and hazardous traveling conditions from the Upper Great Lakes to the Northeast. Meanwhile in southern California, Santa Ana winds will decrease but hot, dry air will remain over the area with elevated fire weather conditions.
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Last Update: 804 PM PST Tue Dec 12 2017

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Medford, OR Local Forecast Office

21NM S Port Orford OR

Marine Zone Forecast


Synopsis: Relatively calm conditions for this time of year will persist through the rest of the week. Moderate west swell will build Thursday and subside Friday. A weak front will move onshore Friday. Offshore high pressure builds in Saturday with increasing north winds that could approach small craft conditions mainly over the southern waters.

Tonight
N wind 5 to 15 kt. Wind waves 2 ft or less. Mixed swell W 5 to 6 ft at 12 seconds and SW 3 to 4 ft at 10 seconds.
Wed
N wind 10 to 15 kt northern portion and N 10 kt brookings southward. Wind waves 2 ft or less... Becoming 3 ft in the afternoon. Mixed swell W 4 ft at 12 seconds and SW 3 ft at 10 seconds...building to W 6 ft at 17 seconds in the afternoon.
Wed Night
N wind 10 to 15 kt northern portion and NE 10 kt brookings southward. Wind waves 3 to 4 ft. Swell W 7 to 8 ft at 15 seconds.
Thu
N wind 5 to 10 kt. Wind waves 2 ft or less... Becoming 3 ft in the afternoon. Swell W 7 to 8 ft.
Thu Night
N wind 5 to 10 kt. Wind waves 3 ft. Swell W 8 ft.
Fri
N wind 5 to 10 kt. Wind waves 3 ft in the morning... Becoming 2 ft or less. Swell W 6 to 7 ft.
Fri Night
N wind 10 to 15 kt. Wind waves 3 ft. Swell W 5 to 6 ft.
Sat
N wind 15 kt. Wind waves 3 ft. Swell W 5 ft.
Sun
N wind 10 to 15 kt. Wind waves 3 ft...becoming 2 ft or less. W swell 6 to 7 ft.
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ABOUT THIS FORECAST

Last Update: 804 PM PST Tue Dec 12 2017
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