Wintry, Windy, and Cold in the West and North; Warming in the East

A deepening trough along the west will bring much below normal temperatures, and the potential for snow to sea-level in the Pacific Northwest, and low elevation snows throughout California, including into the Grapevine. Travel will be hazardous across the west due to snow and strong winds. These winds will also increase fire weather threats in the central and southern Plains. Warming in the east.
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Last Update: 838 PM PST Sat Feb 17 2018

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Seattle, WA Local Forecast Office

6NM SW Seattle WA

Marine Zone Forecast

...GALE WARNING IN EFFECT UNTIL 3 AM PST SUNDAY...

Synopsis: PZZ100-181345- 838 PM PST Sat Feb 17 2018 .Synopsis for the northern and central Washington coastal and inland waters...Low pressure over the area will shift south as high pressure over British Columbia pushes south toward the area. Fraser outflow winds will develop overnight. The cold northerly winds will ease Monday and pressure gradients will be light on Tuesday. $$

Tonight
SW wind 25 to 35 kt becoming 20 to 30 kt after midnight. Wind waves 4 to 6 ft. A chance of rain in the evening then a chance of showers after midnight.
Sun
N wind 20 to 30 kt. Wind waves 3 to 5 ft. Snow showers likely in the morning then a chance of snow showers in the afternoon.
Sun Night
N wind 15 to 25 kt. Wind waves 2 to 4 ft.
Mon
N wind 15 to 25 kt easing to 10 to 20 kt in the afternoon. Wind waves 2 to 4 ft.
Mon Night
N wind 5 to 15 kt becoming S after midnight. Wind waves 2 ft or less.
Tue
S wind to 10 kt in the morning becoming light. Wind waves 1 ft or less.
Tue Night
Light wind becoming S to 10 kt after midnight. Wind waves 1 ft or less.
Wed
S wind to 10 kt rising to 5 to 15 kt. Wind waves 2 ft or less.
Thu
Variable wind 5 to 15 kt easing to 10 kt. Wind waves 2 ft or less.
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ABOUT THIS FORECAST

Last Update: 838 PM PST Sat Feb 17 2018
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