Marine Weather Net

Cape Blanco OR to Point St. George CA from 10 to 60 NM Marine Forecast


REST OF TODAY

W
WINDS
5 - 10
KNOTS

TONIGHT

NW
WINDS
10 - 15
KNOTS

SUN

NW
WINDS
5 - 10
KNOTS

SUN NIGHT

NW
WINDS
10 - 15
KNOTS

The Marine Weather Forecast In Detail:
PZZ376 Forecast Issued: 1115 AM PDT Sat Oct 11 2025

SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM PDT THIS EVENING THROUGH TUESDAY EVENING
Rest Of Today...W Wind 5 To 10 Kt, Becoming Nw 10 To 15 Kt Late. Seas 5 To 7 Ft. Wave Detail: Sw 2 Ft At 4 Seconds And Nw 6 Ft At 10 Seconds. A Chance Of Showers.
Tonight...Nw Wind 10 To 15 Kt. Seas 7 To 9 Ft. Wave Detail: Nw 4 Ft At 6 Seconds And Nw 8 Ft At 10 Seconds. A Chance Of Showers In The Evening.
Sun...Nw Wind 5 To 10 Kt. Seas Around 8 Ft. Wave Detail: Nw 3 Ft At 6 Seconds And Nw 8 Ft At 10 Seconds. A Slight Chance Of Tstms. A Chance Of Showers In The Afternoon.
Sun Night...Nw Wind 10 To 15 Kt. Seas 7 To 9 Ft. Wave Detail: Nw 3 Ft At 5 Seconds, Nw 7 Ft At 10 Seconds And Nw 2 Ft At 13 Seconds. Showers With A Slight Chance Of Tstms.
Mon...N Wind 15 To 20 Kt With Gusts Up To 25 Kt, Easing To 10 To 15 Kt In The Afternoon. Seas 7 To 9 Ft, Building To 8 To 11 Ft In The Afternoon. Wave Detail: Nw 5 Ft At 7 Seconds, Nw 8 Ft At 10 Seconds And Sw 2 Ft At 16 Seconds. A Slight Chance Of Tstms. Showers.
Mon Night...Ne Wind 15 To 20 Kt With Gusts Up To 25 Kt. Seas 9 To 13 Ft. Wave Detail: Nw 6 Ft At 7 Seconds, Nw 10 Ft At 10 Seconds And Nw 2 Ft At 19 Seconds. A Chance Of Showers With A Slight Chance Of Tstms In The Evening, Then A Slight Chance Of Showers After Midnight.
Tue...Ne Wind 10 To 15 Kt. Seas 8 To 11 Ft. Wave Detail: N 6 Ft At 7 Seconds, Nw 9 Ft At 10 Seconds And Nw 3 Ft At 15 Seconds.
Tue Night...N Wind 10 To 15 Kt, Easing To 5 To 10 Kt After Midnight. Seas 7 To 9 Ft. Wave Detail: N 4 Ft At 6 Seconds, Nw 7 Ft At 9 Seconds And Nw 3 Ft At 15 Seconds.
Wed...N Wind 5 To 10 Kt. Seas 7 To 8 Ft, Subsiding To 5 To 7 Ft In The Afternoon. Wave Detail: N 4 Ft At 5 Seconds, Nw 6 Ft At 8 Seconds And Nw 3 Ft At 15 Seconds.
Wed Night...N Wind Around 10 Kt. Seas 5 To 7 Ft. Wave Detail: N 3 Ft At 4 Seconds, Nw 5 Ft At 7 Seconds And Nw 3 Ft At 15 Seconds. Winds And Seas Higher In And Near Tstms.
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Area Forecast Discussion
National Weather Service Medford OR
1130am PDT Sat Oct 11 2025

Updated aviation and marine discussions.

Marine
Updated 1115am PDT Saturday, October 11, 2025...With low pressure weakening over the waters today, there will be a brief period of calmer conditions, though some showers persist and winds will shift to the northwest. We expect northwesterly swell to build into the waters late this afternoon and tonight and will likely be steep enough to bring Small Craft conditions back to the marine waters then. We've adjusted the marine headlines to introduce small craft advisories beginning this evening over the outer waters, and then impacting the inner waters north of Cape Blanco late this evening and into Sunday.

Another low pressure system will move in late Sunday and continue into Monday evening, with widespread showers and a chance of thunderstorms. We expect stronger north winds to accompany this system, which will maintain steep seas, especially over the outer waters through Tuesday. Lighter winds and lower seas should return on Wednesday. -Spilde

/Issued 345am PDT Sat Oct 11 2025/

Satellite image shows the upper low just inland over northwest Oregon. The upper low will remain overhead for most of the day, then the upper trough axis will shift southeast late this afternoon. It will be cool with plenty of showers through the day with most of the showers along and west of the Cascades.

As is typical for this time of the year, snow levels will rise during the day due to diurnal effects. This in combination with a warm ground should limit the amount of snow that accumulates on the ground. The best chance for snow to accumulate will be in heavier showers. Even then any accumulation will be around 6000 feet and higher.

We'll have a relative break in the weather tonight through Sunday morning. A few showers will linger during this time mainly along the coast, coastal mountains and north of the Umpqua Divide. Snow levels will continue to drop to around 5000 feet tonight, but as mentioned precipitation is expected to be mainly light, thus limiting snow accumulation.

Another upper low will drop south towards our area Sunday afternoon and were likely to see a net increase in precipitation along the north coast, north of the Umpqua Divide and northern Cascades as a front moves into the area.

The upper low will move south into northwest Oregon Sunday night into early Monday morning with a net increase in precipitation. Snow levels Sunday night will lower to around 5000 feet. This would put snow over our higher mountain passes, but as this is expected during periods of more showery precipitation. and the ground remains somewhat warm, accumulations of only a couple of inches is forecast. Higher elevations, such as Crater Lake National Park rim drive over 7000 feet, could see heavier snow with up to 6 inches of snow possible by early Monday morning. Otherwise, only a trace to an inch of snow is expected for the higher terrain on the East Side.

The general consensus among the operational models and ensembles show the upper low moving south of the area Monday night and remaining south Tuesday and Wednesday next week. The position of the upper low is one that will keep the best chance of precipitation south of the forecast area, thus resulting in most areas and hours becoming dry Tuesday and Wednesday. However moisture wrapping around the upper low could bring precipitation to portions of northern Cal during this time. -Petrucelli

By the end of next week, Models diverge quite a bit, with some solutions favoring continued ridging, some bringing a trough and surface front through the region, and some dropping another closed low along the coast. With a wide range of possibilities, have kept the "broad average" NBM solution in place, which puts a slight chance of precipitation and near normal temperatures through the remainder of the week. Hopefully more detail will be possible over the coming days as models come to a better consensus. -BPN

ceilings around the Grants Pass area and portions of the eastside, including Klamath Falls. The atmosphere will become unstable as an upper low moves overhead which will allow VFR conditions to be the predominate condition starting between 16-18z and lasting until the end of the TAF period. Despite VFR conditions being the predominate condition, there could be brief periods of MVFR (Marginal Visual Flight Rules) conditions in heavier showers. Also expected the higher terrain to be partly obscured. =Petrucelli

Marine
Updated 245am PDT Saturday, October 11, 2025...An upper low over the marine waters has resulted in showers and isolated thunderstorms over the southern waters this morning. It's possible any isolated storms could result in gusty winds that could approach 30 kts. We'll continue to keep a close watch on this. Otherwise, a brief period of calmer conditions is expected today, but winds shift to the northwest and northwesterly swell will build into the waters late this afternoon into tonight. This swell could be high enough to bring Small Craft conditions back to the marine waters then.

Another similar or slightly stronger low pressure system is likely late Sunday night into Monday evening, with another slight chance of thunderstorms. This front could also result in steep seas. -Petrucelli

NOAA Medford OR Office: Watches - Warnings - Advisories
OR...None.

CA...None.

PACIFIC COASTAL WATERS...Small Craft Advisory from 11pm this evening to 11pm PDT Sunday for PZZ350.

Small Craft Advisory from 8pm this evening to 11pm PDT Tuesday for PZZ370-376.