Marine Weather Net

James Island to Point Grenville WA out 10 to 60 NM Marine Forecast


TODAY

NW
WINDS
15 - 20
KNOTS

TONIGHT

NW
WINDS
20 - 25
KNOTS

SUN

NW
WINDS
15 - 20
KNOTS

SUN NIGHT

NW
WINDS
15 - 20
KNOTS

The Marine Weather Forecast In Detail:
PZZ173 Forecast Issued: 200 PM PDT Sat Jul 13 2024

SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM PDT THIS EVENING
Today...Nw Wind 15 To 20 Kt With Gusts To 25 Kt. Seas 6 To 9 Ft. Wave Detail: Nw 9 Ft At 9 Seconds.
Tonight...Nw Wind 20 To 25 Kt. Seas 6 To 9 Ft. Wave Detail: Nw 9 Ft At 8 Seconds.
Sun...Nw Wind 15 To 20 Kt. Seas 6 To 9 Ft. Wave Detail: Nw 8 Ft At 8 Seconds.
Sun Night...Nw Wind 15 To 20 Kt. Seas 5 To 7 Ft. Wave Detail: Nw 7 Ft At 7 Seconds.
Mon...Nw Wind 15 To 20 Kt, Easing To 10 To 15 Kt In The Afternoon. Seas 5 To 6 Ft. Wave Detail: Nw 6 Ft At 7 Seconds And Sw 2 Ft At 16 Seconds.
Mon Night...Nw Wind 10 To 15 Kt. Seas 4 To 5 Ft. Wave Detail: Nw 5 Ft At 7 Seconds And Sw 2 Ft At 17 Seconds.
Tue...Nw Wind 10 To 15 Kt. Seas 4 To 5 Ft. Wave Detail: Nw 5 Ft At 10 Seconds And Sw 2 Ft At 17 Seconds.
Tue Night...Nw Wind 10 To 15 Kt. Seas 5 To 6 Ft. Wave Detail: Nw 6 Ft At 10 Seconds And Sw 2 Ft At 18 Seconds.
Wed...Nw Wind 10 To 15 Kt. Seas 5 To 6 Ft. Wave Detail: Nw 5 Ft At 11 Seconds And Sw 3 Ft At 18 Seconds.
Wed Night...W Wind Around 10 Kt. Seas 5 To 6 Ft. Wave Detail: Nw 5 Ft At 11 Seconds And Sw 3 Ft At 18 Seconds.
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Area Forecast Discussion
National Weather Service Seattle WA
219pm PDT Sat July 13 2024

Synopsis
An upper level ridge remains over Western Washington through the weekend into next week with continued low level onshore flow. This will maintain above normal temperatures, with only subtle variations in the strength of the marine pushes each night.

Short Term - Tonight Through Tuesday
Zonal flow will remain in place today as a flat upper level ridge remains parked over western Washington. Lingering marine stratus over coastal locations will dissipate by this afternoon, joining the rest of the area in clear skies. Interior locations will have temperatures warm into the mid 80s, while coastal locations will see highs ranging from the mid 60s to the lower 70s.

Temperatures will continue to remain above normal through the interior through the short term, while this persistent pattern of light onshore flow will continue through the first half of next week.

Zonal flow and the aforementioned weak upper ridge will shift eastward on Tuesday, opening the way for a longwave trough to nudge closer to the region.

Long Term - Wednesday Through Saturday
As the ridge shifts eastward into Wednesday, a longwave trough offshore will introduce a dry south/southwesterly flow throughout the area. This may open the door to increased convection chances in the Cascades as a weak front attempts to cross over the region. Ensemble guidance showing low probabilities at this time, but it is something to monitor over the next couple of days. As of now, the most likely outcome would be continued warm and dry conditions, but some light precipitation may be possible during this time frame (Cascade focused).

An upper level ridge to the east looks to intensify through the remaining of the long term period, with temperatures still staying above average, in the mid to upper 80s.

Mazurkiewicz

Marine
Little change in the weather pattern with high pressure situated offshore and a thermal trough over eastern Washington. A Small Craft Advisory continues through today over the outermost coastal waters for gusty northwesterly winds up to 25 kt, with the highest speeds concentrated farther than 30-40 NM offshore. Diurnally driven pushes of westerly winds down the Strait of Juan de Fuca will occasionally be strong enough to warrant additional headlines into next week, with the next strongest push expected to be Sunday evening.

Seas 6 to 8 ft across the coastal waters will decrease Sunday night into Monday to around 4 to 6 ft through the beginning of next week.

15

NOAA Seattle WA Office: Watches - Warnings - Advisories
WA...None. PZ...Small Craft Advisory until 11pm PDT this evening for
Coastal Waters From Cape Flattery To James Island 10 To 60 Nm-
Coastal Waters From James Island To Point Grenville 10 To 60 Nm-
Coastal Waters From Point Grenville To Cape Shoalwater 10 To 60 Nm.