Marine Weather Net

Point Arena to Point Reyes CA out 10 NM Marine Forecast


THIS AFTERNOON

NW
WINDS
10 - 15
KNOTS

TONIGHT

NW
WINDS
15 - 20
KNOTS

THU

NW
WINDS
15 - 20
KNOTS

THU NIGHT

NW
WINDS
20 - 25
KNOTS

The Marine Weather Forecast In Detail:
PZZ540 Forecast Issued: 246 PM PDT Wed Jul 17 2024

SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING
This Afternoon...Nw Wind 10 To 15 Kt, Rising To 15 To 20 Kt Late. Seas 4 To 6 Ft. Wave Detail: Nw 6 Ft At 7 Seconds And Sw 3 Ft At 17 Seconds.
Tonight...Nw Wind 15 To 20 Kt. Seas 5 To 7 Ft. Wave Detail: Nw 7 Ft At 7 Seconds And Sw 3 Ft At 17 Seconds.
Thu...Nw Wind 15 To 20 Kt, Rising To 20 To 25 Kt In The Afternoon. Seas 5 To 7 Ft. Wave Detail: Nw 6 Ft At 7 Seconds And Sw 3 Ft At 16 Seconds.
Thu Night...Nw Wind 20 To 25 Kt, Easing To 15 To 20 Kt After Midnight. Seas 5 To 8 Ft. Wave Detail: Nw 7 Ft At 7 Seconds And Sw 3 Ft At 15 Seconds.
Fri...Nw Wind 15 To 20 Kt, Rising To 20 To 25 Kt With Gusts Up To 35 Kt In The Afternoon. Seas 5 To 7 Ft. Wave Detail: Nw 7 Ft At 7 Seconds And Sw 2 Ft At 15 Seconds.
Fri Night...Nw Wind 20 To 25 Kt. Seas 7 To 10 Ft, Subsiding To 5 To 8 Ft After Midnight. Wave Detail: Nw 8 Ft At 8 Seconds And Sw 2 Ft At 15 Seconds.
Sat...Nw Wind 15 To 20 Kt, Rising To 20 To 25 Kt In The Afternoon. Seas 5 To 8 Ft, Building To 7 To 10 Ft In The Afternoon. Wave Detail: Nw 9 Ft At 8 Seconds And Sw 2 Ft At 14 Seconds.
Sat Night...Nw Wind 20 To 25 Kt. Seas 7 To 10 Ft. Wave Detail: Nw 9 Ft At 7 Seconds And Sw 2 Ft At 14 Seconds.
Sun...Nw Wind 20 To 25 Kt. Seas 7 To 10 Ft. Wave Detail: Nw 9 Ft At 7 Seconds And Sw 2 Ft At 14 Seconds.
Sun Night...Nw Wind 20 To 25 Kt, Easing To 15 To 20 Kt After Midnight. Seas 6 To 9 Ft. Wave Detail: Nw 8 Ft At 7 Seconds And Sw 2 Ft At 15 Seconds.
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Area Forecast Discussion
National Weather Service San Francisco CA 522pm PDT Wednesday July 17 2024

.SHORT TERM... (This afternoon through Thursday) Issued at 1141am PDT Wednesday July 17 2024

One last afternoon of comfortable temperatures before a warming trend begins. A weak mid-level trough will continue to lose strength while moving through the Pacific Northwest. This will allow retrograding high pressure over the 4 corners region to regain its throne as the dominant weather feature across the West, triggering another stable omega block in the long wave pattern. The temperatures will gradually increase Thursday as a result of this changing pattern, with more warming on the way.

Long Term
(Thursday night through next Tuesday) Issued at 1141am PDT Wednesday July 17 2024

Friday looks like the peak of this warm up, with several inland areas threatening 100 degrees. Despite broad agreement in the general pattern, there is still significant model discrepancy regarding how hot it will get at the surface. Most of this is attributed to how the marine layer will respond to the building pressure. We know it will compress, but it's not clear how much, as low-level onshore wind will fight pressure-driven compression. Either way, the marine layer won't go away, and coastal areas will remain much more comfortable in the 70s and 80s. To illustrate the inland heat uncertainty, the ECMWF (European Centre for Medium-Range Weather Forecasts) ensemble shows an 80% chance that temperatures at Santa Rosa will be somewhere between 100F and 110F. Meanwhile, the GEFS ensemble shows an 80% chance that temperatures will stay in the 90s. This spread has not decreased appreciably since yesterday, but we are now starting to get in the window for high resolution guidance. These regional models lie somewhere between the two global extremes, with a Friday high near 100 degrees at Santa Rosa.

We will get a slight reprieve on Saturday as the ridge amplitude decreases and temperatures drop about 5-10 degrees. Unfortunately there will be a gradual rebound early next week that may eventually exceed the Friday peak. Looking way ahead, there are some early signs that a cold front may move through late next week, bringing us much cooler weather for the following weekend.

Marine
(Today through Monday) Issued at 246pm PDT Wednesday July 17 2024

Fresh northwesterly winds with strong gusts are expected to begin by late this afternoon. Winds will continue to strengthen through next week with near gale force gusts becoming more widespread over the coastal waters over the weekend. Significant wave heigheights will build to 10 to 13 ft by the late weekend with elevated wave heigheights persisting through the end of the forecast period.

NOAA San Francisco Bay Area Office: Watches - Warnings - Advisories
CA...
Heat Advisory from 10am Thursday to 11pm PDT Friday for CAZ503- 504-506-510-513>515-517-518.

PZ...Small Craft Advisory until 9am PDT Friday for Pigeon Pt to Pt Pinos 10-60 NM-Pt Arena to Pt Reyes 0-10 nm-Pt Arena to Pt Reyes 10-60 NM-Pt Pinos to Pt Piedras Blancas 0-10 nm.

Small Craft Advisory until 9pm PDT this evening for Pigeon Pt to Pt Pinos 0-10 nm.

Small Craft Advisory from 3pm to 9pm PDT Thursday for Pigeon Pt to Pt Pinos 0-10 nm.