Heavy Snow & Ice Across Portions of the Plains and Midwest; Unsettled in the Pacific Northwest

Heavy snow and freezing rain will impact portions of the Plains, upper Midwest, and Great Lakes into Monday. Significant snow accumulations and gusty winds are likely in some areas. Farther to the south, rain and a few thunderstorms are expected over the Mississippi, Tennessee, and Ohio Valleys. Heavy rain & mountain snowfall will also continue from northern California into the Pacific Northwest.

Last Update: 822 AM PST Sun Jan 21 2018

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Medford, OR Local Forecast Office

41NM WSW Port Orford OR

Marine Zone Forecast


Synopsis: A strong front will move through the waters today. Gales are expected over much of the waters with storm force winds near Cape Blanco and beyond 1 to 2 nm from shore north of Pistol River. Very steep and hazardous wind driven seas will peak early this afternoon near 23 feet. Winds and seas will diminish this afternoon but will remain very steep and hazardous through Monday morning. Active weather will continue through the week with another period of gales possible by Tuesday morning.

S gales 40 kt...veering to SW early in the afternoon, then...becoming W 10 to 15 kt late afternoon. Wind waves 11 to 14 ft...subsiding to 7 to 10 ft in the afternoon. W swell 10 to 12 ft at 12 seconds...building to 16 ft at 13 seconds in the afternoon. Rain.
Northern portion, SW wind 10 to 15 kt. Southern portion, W wind 5 to 10 kt...backing to SW after midnight. Wind waves 3 to 5 ft. W swell 15 to 17 ft at 15 seconds. Chance of showers.
S wind 5 to 10 kt. Wind waves 2 ft or less. W swell 13 to 15 ft at 13 seconds. Slight chance of showers.
Mon Night
Northern portion, S wind 10 kt...rising to 20 to 25 kt after midnight. Southern portion, S wind 5 kt...becoming SE 15 kt after midnight. Wind waves 2 ft or less...becoming 3 to 5 ft after midnight. W swell 10 to 12 ft.
S gales 35 kt northern portion and S wind 30 kt southern portion. Wind waves 7 to 9 ft. W swell 7 ft. Rain.
Tue Night
S gales 35 kt. Wind waves 8 to 10 ft. W swell 7 to 8 ft. Rain.
SW wind 30 kt...easing to 20 kt. Wind waves 7 to 8 ft. W swell 8 ft...building to 15 ft and NW 4 ft.
W wind 20 kt...rising to 25 kt after midnight. Wind waves 6 ft...subsiding to 3 to 4 ft. W swell 17 ft.
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Last Update: 822 AM PST Sun Jan 21 2018
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