Severe Thunderstorms and Heavy Rain Across Much of the Plains and Mississippi Valley; A Strong Pacific Storm Moves Across the West

Areas of severe thunderstorms with heavy rainfall will continue from the Southern Plains into much of the Mississippi Valley into Sunday morning. The primary threats will be widespread damaging winds, large hail and a few tornadoes. On the West Coast, a Pacific storm will continue unsettled conditions and widespread precipitation, including heavy mountain snow, this weekend.
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Last Update: 900 PM PDT Sat May 18 2019

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Seattle, WA Local Forecast Office

6NM SW Seattle WA

Marine Zone Forecast


Synopsis: PZZ100-191200- 900 PM PDT Sat May 18 2019 .Synopsis for the northern and central Washington coastal and inland waters...Offshore flow will turn onshore this evening, then increase on Sunday. Flow will turn southerly on Monday ahead of a weather system. Onshore flow will then dominate for the remainder of the week as high pressure remains centered well offshore with lower pressure east of the Cascades. $$

Tonight
N wind 5 to 15 kt in the evening becoming light. Wind waves 2 ft or less. A chance of showers.
Sun
SW wind to 10 kt becoming NW in the afternoon. Wind waves 1 ft or less. A chance of showers.
Sun Night
NW wind 10 to 20 kt becoming S 5 to 15 kt after midnight. Wind waves 1 to 3 ft. A slight chance of showers in the evening then a chance of showers after midnight.
Mon
S wind 10 to 20 kt becoming SW 15 to 25 kt in the afternoon. wind waves 1 to 4 ft.
Mon Night
S wind 5 to 15 kt becoming SE after midnight. Wind waves 2 ft or less.
Tue
N wind 5 to 15 kt. Wind waves 2 ft or less.
Tue Night
NE wind 5 to 15 kt becoming S after midnight. Wind waves 2 ft or less.
Wed
NW wind to 10 kt. Wind waves 1 ft or less.
Thu
Variable wind to 10 kt. Wind waves 1 ft or less.
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ABOUT THIS FORECAST

Last Update: 900 PM PDT Sat May 18 2019
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