Point Arena to Point Reyes CA out 10 NM Marine Forecast
| Tonight...S Wind 5 To 10 Kt. Seas Around 3 Ft. Wave Detail: Nw 3 Ft At 7 Seconds And S 2 Ft At 12 Seconds. Patchy Dense Fog This Evening. A Chance Of Drizzle. A Slight Chance Of Rain Late This Evening. A Chance Of Rain After Midnight. |
| Wed...S Wind 5 To 10 Kt. Seas 3 To 4 Ft. Wave Detail: Nw 3 Ft At 7 Seconds And S 2 Ft At 11 Seconds. A Slight Chance Of Drizzle. |
| Wed Night...S Wind Around 5 Kt, Rising To 5 To 10 Kt After Midnight. Seas 3 To 5 Ft. Wave Detail: Nw 3 Ft At 9 Seconds And S 3 Ft At 12 Seconds. A Chance Of Drizzle. A Chance Of Rain In The Evening, Then Rain After Midnight. |
| Thu...S Wind 5 To 10 Kt, Becoming Sw In The Afternoon. Seas 4 To 6 Ft. Wave Detail: Nw 5 Ft At 9 Seconds And S 3 Ft At 12 Seconds. A Chance Of Drizzle. Rain, Mainly In The Morning. |
| Thu Night...Nw Wind 5 To 10 Kt. Seas 5 To 6 Ft. Wave Detail: Nw 5 Ft At 10 Seconds And S 3 Ft At 11 Seconds. |
| Fri...Nw Wind 5 To 10 Kt. Seas 5 To 7 Ft. Wave Detail: Nw 6 Ft At 11 Seconds And S 3 Ft At 12 Seconds. |
| Fri Night...Nw Wind 5 To 10 Kt. Seas 4 To 6 Ft. Wave Detail: Nw 5 Ft At 8 Seconds And S 3 Ft At 13 Seconds. |
| Sat...Nw Wind 5 To 10 Kt. Seas 4 To 5 Ft. Wave Detail: Nw 4 Ft At 10 Seconds And S 3 Ft At 13 Seconds. |
| Sat Night...Nw Wind 5 To 10 Kt. Seas 4 To 5 Ft. Wave Detail: Nw 4 Ft At 9 Seconds And Sw 2 Ft At 14 Seconds. |
| Sun...Nw Wind 5 To 10 Kt, Rising To 10 To 15 Kt In The Afternoon. Seas 4 To 5 Ft. Wave Detail: Nw 4 Ft At 7 Seconds And S 2 Ft At 14 Seconds. |
| Sun Night...Nw Wind 10 To 15 Kt. Seas 4 To 5 Ft. |
| Area Forecast Discussion National Weather Service San Francisco CA 521pm PDT Tuesday September 1 2026 ...New .KEY MESSAGES... Updated at 107pm PDT Tuesday September 1 2026 - Cooler weather continues through the week - Beneficial wetting rain expected in the North Bay through Thursday Issued at 517pm PDT Tuesday September 1 2026 The 00Z sounding measured the marine layer at 5,200 ft. That's about as deep as possible before it loses it's structure. In fact cumulus clouds are surviving within the marine layer. The deep marine layer also allowed temperatures to climb higher than expected in the coastal areas. If the marine layer survives the night we will see a double inversion pattern. Meanwhile light rain is approaching the North Bay and should be there Wednesday morning. .SHORT TERM... Issued at 107pm PDT Tuesday September 1 2026 (This evening through Wednesday night) Mostly clear sky conditions have returned to the Central Coast with scattered low clouds across the Bay Area and North Bay. There are also high clouds associated with an approaching frontal boundary across the North Bay. As such, temperatures today will be 5-15 degrees below normal as the 850 mb temperature drops below 10C/50F for the first time since May. Additionally, there is a chance for for light rain and/or drizzle across the North Bay tonight into Wednesday morning with pre-fronatal coastal drizzle for areas to the south. Low clouds will spread back inland overnight and into Wednesday morning with temperatures generally the 50s across much of the region and in the 40s in the higher elevations. Similar conditions are forecast for Wednesday with another disturbance moving in from the northwest Wednesday night into Thursday. This will bring increasing potential for light rain across the North Bay and portions of the Bay Area. The greatest potential to see greater than 0.25" will be in the coastal ranges of the North Bay and 0.10" in and around Santa Rosa and the Sonoma County valleys by Thursday morning. Rainfall amounts drastically drop off the further south you go. Long Term Issued at 107pm PDT Tuesday September 1 2026 (Thursday through next Monday) Heading into this upcoming weekend, there is the potential we see a slight warming trend high pressure over the central United States builds westward. However, troughing off of the West Coast will main cooler than average temperatures throughout the weekend. Ensemble clusters diverge heading into next week. As such, still keeping an eye on tropical development over the eastern Pacific Ocean for any northward movement of tropical moisture. However, the latest guidance is indicating the track of TS Marie should stay well to our south, potentially bringing impacts to southern California. For more information on tropical developments visit nhc.noaa.gov. Marine (Today through Sunday) Issued at 915am PDT Tuesday September 1 2026 Light northwesterly breezes will persist through the week with occasional moderate breezes. Slight to moderate wind driven seas will continue through the week with tropical cyclone activity producing long period southerly swell by the end of the week into the weekend. NOAA San Francisco Bay Area Office: Watches - Warnings - Advisories CA...None. PZ...None. x.com/nwsbayarea |
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