Point Arena to Point Reyes CA from 10 to 60 NM Marine Forecast
| Tonight...N Wind 5 To 10 Kt, Veering To Ne After Midnight. Seas 5 To 6 Ft. Wave Detail: Nw 6 Ft At 13 Seconds. Patchy Dense Fog. |
| Sat...Se Wind 5 To 10 Kt. Seas 4 To 5 Ft. Wave Detail: Nw 5 Ft At 12 Seconds. Patchy Dense Fog In The Morning. A Slight Chance Of Rain In The Afternoon. |
| Sat Night...Se Wind 5 To 10 Kt. Seas 3 To 4 Ft. Wave Detail: W 4 Ft At 12 Seconds. A Slight Chance Of Rain. |
| Sun...S Wind 5 To 10 Kt. Seas Around 3 Ft. Wave Detail: W 3 Ft At 12 Seconds. A Slight Chance Of Rain In The Morning. |
| Sun Night...Sw Wind Around 5 Kt, Backing To S After Midnight. Seas Around 3 Ft. Wave Detail: S 2 Ft At 9 Seconds And W 3 Ft At 11 Seconds. Patchy Fog. A Slight Chance Of Rain After Midnight. |
| Mon...S Wind 5 To 10 Kt. Seas 3 To 4 Ft. Wave Detail: W 3 Ft At 9 Seconds And S 2 Ft At 12 Seconds. A Chance Of Rain. |
| Mon Night...Sw Wind 5 To 10 Kt. Seas 4 To 6 Ft, Building To 5 To 8 Ft After Midnight. Wave Detail: W 8 Ft At 13 Seconds And Sw 3 Ft At 13 Seconds. Rain Likely. |
| Tue...Sw Wind 5 To 10 Kt, Rising To 10 To 15 Kt In The Afternoon. Seas 7 To 8 Ft. Wave Detail: W 8 Ft At 12 Seconds And Sw 3 Ft At 13 Seconds. Rain. |
| Tue Night...W Wind 10 To 15 Kt. Seas 7 To 8 Ft. Wave Detail: W 8 Ft At 12 Seconds And Sw 3 Ft At 14 Seconds. Rain. |
| Wed...Nw Wind 5 To 10 Kt. Seas 7 To 10 Ft. Wave Detail: W 9 Ft At 12 Seconds And S 3 Ft At 14 Seconds. Rain Likely, Mainly In The Morning. |
| Wed Night...W Wind 5 To 10 Kt, Backing To Sw After Midnight. Seas 8 To 10 Ft. Wave Detail: W 9 Ft At 12 Seconds And S 3 Ft At 14 Seconds. Rain Likely. |
| Area Forecast Discussion National Weather Service San Francisco CA 115am PST Sat Dec 13 2025 ...New SHORT TERM, Long Term .KEY MESSAGES... Updated at 111am PST Sat Dec 13 2025 - Dense fog impacts are expected through the morning in the Interior North Bay and East Bay Valleys as well as coastal locations - Wet conditions return next week .SHORT TERM... Issued at 111am PST Sat Dec 13 2025 (Today and tonight) Today's main impact will be a tale of two fogs: advection and radiation. Let's start with the persistence side of the forecast, or what has been happening. Portions of the region will continue to be affected by tule fog (a type of radiation fog) as it seeps out of the Central Valley through neighboring gaps and passes which will continue to facilitate below normal temperatures. There is also a southerly surge underway which will bring more traditional advection fog to coastal locations. This will not only be a change to the warm, sunny afternoons that have been observed the last week, but also to the cold overnight conditions that have been made possible by clear skies which allow for radiational cooling. We will continue to monitor the evolution of both of these through the morning to see if the Dense Fog Advisory that is in effect through 11AM for North Bay and East Bay Interior Valleys needs to be extended in area, time, or both. Consider delaying unnecessary travel until visibilities improve. If travel is necessary, make sure to use your low-beam headlights, increase following distance between vehicles, and allow extra time and patience. Elsewhere, sensible weather will yield temperatures up to 15 degrees above normal as the region remains under the influence of upper-level longwave ridging. Offshore flow will also continue with high pressure across the Great Basin and a coastal trough off the West Coast. Long Term Issued at 111am PST Sat Dec 13 2025 (Sunday through Friday) The aforementioned upper-level longwave ridge will exit to the east Sunday, giving way to zonal flow for most if not all of the long term forecast. Passing disturbances to the north and an increase in precipitable water and integrated vapor transport values will renew rain chances as early as Monday with no clear cut dry day beyond that. Rainfall in the beginning of the week is expected to be light and beneficial for those who are lucky enough to get any. This will also act to disrupt the pattern that we have been in that has allowed for relentless tule fog. Towards the tail end of the long term forecast period, a relatively more significant system is forecast as a surface low pressure system and its attendant cold front encroach the California Coast. It is too soon to delve into the specifics, but expect a change in the pattern and a return to wet conditions next week. This weekend would be a great time to clean out gutters and trim trees away from your home and power lines. But wait, there's more! Beyond the long term forecast of seven days, it continues to be advertised that there's a moderate risk of heavy precipitation and high winds Saturday, December 20th through Friday, December 26th. This will not only be important for daily life, but also holiday travel. Marine (Tonight through next Thursday) Issued at 844pm PST Fri Dec 12 2025 Dense fog is possible across the southern coastal waters tonight as a southerly surge of marine stratus moves northward. Gentle northeasterly winds will gradually shift southerly on Saturday morning before moderate northerly winds return again on Monday. Seas continue to subside with slight waves continuing through the weekend. Unsettled weather returns by the middle of next week with seas to build and light rain possible across the coastal waters. NOAA San Francisco Bay Area Office: Watches - Warnings - Advisories CA...Dense Fog Advisory until 11am PST this morning for CAZ506-510. PZ...None. x.com/nwsbayarea |
San Francisco Radar
Southwest Radar