Point Grenville to Cape Shoalwater WA out 10 to 60 NM Marine Forecast
| Today...Sw Wind 5 To 10 Kt, Veering To W Early This Afternoon, Then Becoming Nw 10 To 15 Kt Late. Seas 4 To 5 Ft. Wave Detail: W 4 Ft At 9 Seconds. A Chance Of Showers With A Slight Chance Of Tstms Early This Morning, Then A Slight Chance Of Rain Late This Morning. |
| Tonight...Nw Wind 10 To 15 Kt. Seas 5 To 7 Ft. Wave Detail: W 7 Ft At 9 Seconds. |
| Thu...Nw Wind 10 To 15 Kt. Seas 5 To 7 Ft. Wave Detail: W 7 Ft At 10 Seconds. |
| Thu Night...Nw Wind 10 To 15 Kt. Seas 5 To 6 Ft. Wave Detail: Nw 6 Ft At 9 Seconds. |
| Fri...Nw Wind 5 To 10 Kt. Seas 4 To 5 Ft. Wave Detail: Nw 4 Ft At 9 Seconds. A Chance Of Rain. |
| Fri Night...Nw Wind Around 5 Kt. Seas 3 To 4 Ft. Wave Detail: Nw 4 Ft At 10 Seconds. A Chance Of Rain. |
| Sat...W Wind Around 5 Kt. Seas 4 To 5 Ft. Wave Detail: Nw 5 Ft At 10 Seconds. Rain. |
| Sat Night...Nw Wind 5 To 10 Kt. Seas Around 5 Ft. Wave Detail: Nw 5 Ft At 10 Seconds. Rain Likely, Mainly In The Evening. |
| Sun...Nw Wind Around 10 Kt. Seas 5 To 6 Ft. Wave Detail: Nw 5 Ft At 10 Seconds. A Chance Of Rain. |
| Sun Night...Nw Wind 10 To 15 Kt. Seas 5 To 6 Ft. Wave Detail: Nw 6 Ft At 10 Seconds. Winds And Seas Higher In And Near Tstms. |
| Area Forecast Discussion National Weather Service Seattle WA 219am PDT Wednesday September 11 2024 Synopsis The first in a series of low pressure systems has arrived, setting up a more autumnal pattern. Rain continues to move onshore this morning and will last through much of the day. Cooler temperatures and cloudy conditions will last throughout the forecast period with occasional showers. A stronger front may move through on Monday or Tuesday. Short Term - Today through Friday Moderate showers are moving onshore early this morning and will continue to do so throughout much of the day today. There have been some cloud flashes and isolated lightning just to the south of our CWA (County Warning Area) along the coast, and an embedded thunderstorm cannot be ruled out namely in areas south of Puget Sound and along the coast. Any thunderstorms that happen to develop are expected to be pulsey and short lived. Lightning and gusty winds would be the main associated hazards. That said, the probabilities are still low. Rainfall amounts through Thursday morning have gone up slightly, with up to an inch of precipitation likely in the southern Cascades and a quarter to half inch throughout much of Puget Sound. Widespread 60 degree temperatures are expected today, and with the continuation of a cooler and showery pattern, temperatures like this are expected to continue through the weekend. Given the nature of the front and the cooler airmass impacting the area, this front is going to provide snow to the upper elevations of Mount Rainier, but snow levels are still going to be higher than locations like Sunrise and Paradise. A decrease in shower coverage is likely on Thursday as shortwave ridging moves in. Temperatures will be only slightly warmer and a bit closer to 70 degrees, with a similar expectation for Friday. Long Term - Saturday Through Tuesday Ensembles and long range height anomalies show persistent troughing over the Pacific Northwest through the middle of next week. A few showers are likely over the weekend, but won't be very widespread and perhaps more confined to the higher elevations. Extending out into the beginning of next week, there appears to be a more robust frontal system poised to move in late Monday or Tuesday, dropping in from the Gulf of Alaska. Timing of its arrival will vary as more details become clear in subsequent forecast packages. Marine A weak surface trough over the coastal waters will gradually fill as it shifts onshore this afternoon. Broad surface ridging centered well offshore then rebuilds through Thursday. Another weak trough is expected to slide southward from the British Columbia coast later Friday into Saturday, but remains unlikely to generate any impacts at this time. 27 NOAA Seattle WA Office: Watches - Warnings - Advisories WA...None. PZ...None. |
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