San Francisco Bay north of the Bay Bridge, including San Pablo Bay, Suisun Bay, and West Delta, CA Marine Forecast
| Rest Of Today...S Wind Around 5 Kt, Veering To Sw This Afternoon. Areas Of Dense Fog Early This Morning, Then Patchy Fog Late This Morning. |
| Tonight...Sw Wind 5 To 10 Kt, Veering To Nw After Midnight. Patchy Fog. |
| Mon...Nw Wind 5 To 10 Kt. |
| Mon Night...W Wind Around 5 Kt, Backing To E After Midnight. A Chance Of Rain After Midnight. |
| Tue...Se Wind Around 5 Kt, Veering To S In The Afternoon. Rain Likely. A Slight Chance Of Tstms In The Afternoon. |
| Tue Night...S Wind 5 To 10 Kt. Rain Likely, Mainly In The Evening. |
| Wed...S Wind 5 To 10 Kt, Veering To Sw In The Afternoon. A Chance Of Rain. |
| Wed Night...W Wind 5 To 10 Kt, Veering To N After Midnight. A Chance Of Rain In The Evening. Patchy Fog After Midnight. |
| Thu...Nw Wind 5 To 10 Kt. Patchy Fog In The Morning. |
| Thu Night...W Wind 5 To 10 Kt. Winds And Waves Higher In And Near Tstms. |
| Area Forecast Discussion National Weather Service San Francisco CA 1117am PST Sunday Feb 8 2026 .SHORT TERM... Issued at 126am PST Sunday Feb 8 2026 (Today through Monday) Mostly clear skies are being observed across the Bay Area and the Central Coast this morning. As temperatures cool and reduce dew point depressions, fog is starting to develop being patchy in nature from the East Bay Valleys down the Salinas Valley and more areas of fog development in the North Bay Valleys. Widespread dense fog is not expected, but webcams will be monitored through the morning. After daybreak, the added sunshine will help mix out any lingering fog my mid morning. Partly cloudy skies will remain out ahead of the next system to the North, but mostly sunny skies are expected for areas south of the Bay Bridge. Temperatures will increase into the mid 60s for the Bay Area (upper 50s to low 60s along the coastline) and a chance for low 70s in southern Monterey County. No major changes to the forecast regarding the rain chances today. The shortwave trough is still expected to pass over southern Oregon keeping the higher precipitation totals there and in the northern California. The (20 to 40 percent) chance for area in the forecast area will mainly be in the North Bay with only a couple hundredths or rain possible late this afternoon and evening. Any chance for a sprinkle south of the North Bay is less than 10 percent. Cooler air will filter in behind this wave. Temperatures tomorrow morning will be a degree or two cooler than this morning, with another chance for patchy fog. Similarly, high temperatures will also be slightly cooler on Monday than today, but still remain a couple degrees warmer than seasonable norms. No precipitation is expected to start the work week. Long Term Issued at 126am PST Sunday Feb 8 2026 (Monday Night through Saturday) The next upper level low will drop southward over the ocean and move over the California Coast Tuesday afternoon through Wednesday. Model runs are trending wetter with this system compared to earlier in the weekend. With precipitable water amounts trending just under an inch, there is a good chance that coastal areas could see about or just over a half an inch of rain, with some coastal higher elevations around an inch. While there will still be a difference in amounts with coastal areas seeing more, traditional rain shadowed areas could still even receive over a quarter of an inch of rain. Lastly, models are suggesting a potent 120+kt 300 mb jet will company this upper level low providing some synoptic lift enhancement. However, the Euro is suggesting the core of the jet would arrive over the Central Coast whereas the GFS (Global Forecast System) is slightly more north toward the Bay Area. While CAPE values are not overly robust, model sounding are showing a strip of shallow, skinny area of instability. While confidence is not high, there is a slight chance for thunder Tuesday night. While the details may still be tweaked, it looks like a widespread soaking rain is in store for the Bay Area and the Central Coast midweek. Cooler air advection with this upper level low will help provide more seasonable normal temperatures across the area by the middle of the week. Weak ridging is expected Thursday in to Friday for a brief respite from the rain. Models are showing fairly good agreement in another system expected to move in over the weekend. While models are disagreeing on the specific timing and strength of the system, many ensemble members are suggesting that this system has a higher chance for a widespread soaking rain than the midweek system. And with colder air filtering in aloft, snow levels are expected to drop below 5,000 feet. How low they will go and whether or not the peaks of some of the higher terrain could see a dusting remains uncertain. But morning low temperatures this weekend could drop down below 40 degrees for some of the interior valley locations. Marine (Today through Friday) Issued at 0859am PST Sunday Feb 8 2026 A cold front will move southeastward over the coastal waters and bays tonight and early Monday. Seas will continue moderate today. Northwest winds will strengthen to a fresh to strong breeze today into Monday. A low pressure system will then approach from the west bringing rain to the coastal waters and bays Tuesday through Wednesday. NOAA San Francisco Bay Area Office: Watches - Warnings - Advisories CA...None. PZ...Small Craft Advisory from 3pm this afternoon to 9pm PST Monday for Pt Pinos to Pt Piedras Blancas 0-10 nm. Small Craft Advisory from 9pm this evening to 9pm PST Monday for Pt Arena to Pt Reyes 10-60 NM. Small Craft Advisory from 9pm this evening to 3pm PST Monday for Pigeon Pt to Pt Pinos 10-60 NM. x.com/nwsbayarea |
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