Marine Weather Net

Point Grenville to Cape Shoalwater WA out 10 NM Marine Forecast


10 - 15


5 - 10


10 - 15


5 - 10

The Marine Weather Forecast In Detail:
PZZ156 Forecast Issued: 134 PM PDT Wed May 29 2024

Tonight...Nw Wind 10 To 15 Kt, Becoming N 5 To 10 Kt Late. Seas 4 To 5 Ft. Wave Detail: W 5 Ft At 10 Seconds.
Thu...N Wind 5 To 10 Kt, Becoming Nw 10 To 15 Kt In The Afternoon. Seas 3 To 4 Ft. Wave Detail: W 4 Ft At 9 Seconds.
Thu Night...N Wind 10 To 15 Kt. Seas 3 To 4 Ft. Wave Detail: Nw 4 Ft At 9 Seconds.
Fri...N Wind 5 To 10 Kt. Seas 3 To 4 Ft. Wave Detail: W 3 Ft At 8 Seconds.
Fri Night...Nw Wind 10 To 15 Kt, Easing To 5 To 10 Kt After Midnight. Seas 3 To 4 Ft. Wave Detail: W 3 Ft At 8 Seconds. A Chance Of Rain After Midnight.
Sat...Sw Wind 5 To 10 Kt. Seas 3 To 4 Ft. Wave Detail: W 4 Ft At 9 Seconds. Rain Likely, Mainly In The Morning.
Sat Night...W Wind 5 To 10 Kt, Backing To Sw After Midnight. Seas 4 To 5 Ft. A Chance Of Rain After Midnight.
Sun...S Wind 10 To 15 Kt, Rising To 15 To 20 Kt In The Afternoon. Seas 4 To 5 Ft, Building To 5 To 7 Ft In The Afternoon. Rain.
Sun Night...S Wind 15 To 20 Kt, Easing To 10 To 15 Kt After Midnight. Seas 6 To 8 Ft. Rain.
Mon...Sw Wind 10 To 15 Kt. Seas 5 To 7 Ft. Rain.
Mon Night...Sw Wind 10 To 15 Kt. Seas 6 To 7 Ft. Rain.
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Area Forecast Discussion
National Weather Service Seattle WA
235pm PDT Wednesday May 29 2024

Convergence zone activity with embedded thunderstorms are likely to persist into the evening hours before dissipating. Weak high pressure will impact the region from the south for drier and slightly warmer temperatures on Thursday and Friday. Additional frontal systems and an increase in moisture is likely to return early next week.

Short Term - Tonight Through Saturday
Convergence zone showers and isolated thunderstorms are occurring along the I-90 corridor and along the King and Snohomish county lines. The threat for thunderstorms will persist until sundown as solar heating and resultant instability wanes. The storms will be capable of producing heavy rain and brief spurts of graupel. Additional showers are moving in along the coast, but are generally just light rain at the time of this writing.

A shortwave ridge is expected Thursday and Friday ahead of the next frontal system, but it is only expected to return the temperatures to seasonally normal, upper 60s and low 70s. Some shower activity associated with the next front may arrive at the coast by Friday afternoon, but Puget Sound and the rest of the interior will have to wait until early Saturday morning to see that wave of precipitation arrive.

Long Term - Sunday Through Wednesday
Long range cluster analysis is in good agreement on troughing lingering in the area, favoring cooler temperatures and increased precipitation. Sunday through Tuesday will feature a parade of systems, some taking on atmospheric river levels of moisture and high snow levels, bringing up to 4 inches of rain on the windward slopes of the Olympics and Cascades, amd over an inch of rain throughout much of Puget Sound over those three days. While some may digress that this is not the type of late spring weather most desire, receiving moisture like this at this point in the year is incredibly beneficial in providing some breathing room on fuel receptiveness to fires. While it won't nix the threat of a fire season completely, the region is far better off with receiving this moisture than not.

That tidbit aside, high temperatures through Wednesday will likely only be in the upper 50s and low 60s. With ongoing precipitation over three days, the Skokomish, Snohomish and Skykomish rivers will need to be monitored as they are likely to rise into Action stage flood levels by Monday and Tuesday.

For what its worth, and much further in the distance, it is worth noting that in the 8-14 day outlook from the Climate Prediction Center, there is a signal for a heat event centered over California, but western Washington is in the slight risk of excessive heat category. This is something that will be closely watched and at this time, no projections on exact temperatures can be made, but rather something to think about if you still need to get air conditioning units put back in windows, etc.

An upper level trough has moved inland, with ridging taking place offshore, maintaining onshore flow. A strong push of westerlies will persist through the Strait of Juan de Fuca this afternoon and evening (will continue the small craft advisory). Expect the ridge to weaken Friday with systems to follow this weekend into next week potentially bringing gusty winds and higher seas. Seas through the end of the week will hold around 4 to 6 ft.


NOAA Seattle WA Office: Watches - Warnings - Advisories
WA...None. PZ...Small Craft Advisory until 2am PDT Thursday for
Central U.S. Waters Strait Of Juan De Fuca-
East Entrance U.S. Waters Strait Of Juan De Fuca.