Point Arena to Point Reyes CA from 10 to 60 NM Marine Forecast
| Tonight...Nw Wind 20 To 25 Kt. Seas 7 To 10 Ft, Building To 9 To 11 Ft After Midnight. Wave Detail: Nw 10 Ft At 9 Seconds And S 2 Ft At 14 Seconds. |
| Tue...N Wind 20 To 25 Kt. Seas 8 To 11 Ft. Wave Detail: Nw 10 Ft At 9 Seconds And S 2 Ft At 14 Seconds. |
| Tue Night...Nw Wind 25 To 30 Kt. Seas 8 To 11 Ft. Wave Detail: Nw 11 Ft At 9 Seconds And S 2 Ft At 13 Seconds. |
| Wed...N Wind 25 To 30 Kt, Backing To Nw 20 To 25 Kt In The Afternoon. Seas 9 To 12 Ft. Wave Detail: Nw 11 Ft At 9 Seconds And S 2 Ft At 13 Seconds. |
| Wed Night...Nw Wind 20 To 25 Kt. Seas 8 To 10 Ft. Wave Detail: Nw 10 Ft At 9 Seconds And S 2 Ft At 14 Seconds. |
| Thu...N Wind 20 To 25 Kt, Becoming Nw 15 To 20 Kt In The Afternoon. Seas 7 To 10 Ft. Wave Detail: Nw 10 Ft At 9 Seconds And S 2 Ft At 15 Seconds. |
| Thu Night...Nw Wind 15 To 20 Kt. Seas 6 To 8 Ft. Wave Detail: Nw 7 Ft At 8 Seconds And Sw 2 Ft At 14 Seconds. |
| Fri...N Wind 15 To 20 Kt, Becoming Nw 10 To 15 Kt In The Afternoon. Seas 5 To 7 Ft. Wave Detail: Nw 7 Ft At 8 Seconds And S 2 Ft At 14 Seconds. |
| Fri Night...Nw Wind 10 To 15 Kt. Seas 5 To 6 Ft. Wave Detail: Nw 5 Ft At 8 Seconds And S 3 Ft At 18 Seconds. |
| Sat...Nw Wind 10 To 15 Kt, Easing To 5 To 10 Kt In The Afternoon. Seas 5 To 6 Ft. Wave Detail: Nw 5 Ft At 7 Seconds And S 3 Ft At 17 Seconds. |
| Sat Night...Nw Wind Around 10 Kt. Seas 4 To 5 Ft. Wave Detail: Nw 4 Ft At 7 Seconds And S 3 Ft At 16 Seconds. |
| Area Forecast Discussion National Weather Service San Francisco CA 948pm PDT Monday August 10 2026 .SHORT TERM... Issued at 144pm PDT Monday August 10 2026 (This evening through Tuesday night) Afternoon visible satellite imagery shows ample sunshine across the interior, but the persistent marine layer continues to hug the coast. Pretty interesting to see all of the small eddies forming in the coastal stratus this afternoon as well. Satellite imagery also shows heat and smoke associated with the Timber Incident along the Big Sur coast. Monterey Airport was reporting haze at various times through the day due to some drift smoke. Overall transport flow is not overly strong through Tuesday so smoke/haze will be possible around the Monterey Bay / Big Sur region. Interesting longwave pattern across CA tonight through Tuesday. The large ridge that brought oppressive heat to CA over the weekend has been split in half by a deepening upper level trough. One upper ridge is near the Four Corners and the other is well offshore. Sandwiched in the middle is a small shortwave trough inching its way toward the CA coast. Over the next 24 hours the trough will deepen further cooling the airmass and deepening the marine layer. The cooling trend noticed across the forecast area today will continue on Tuesday. Additionally, as the trough deepens a few spokes of moisture and instability will traverse the Central Coast. For now, not enough to warrant any mention of precip, but a few high level Cumulus clouds are possible. Speaking of precip, the moisture in the marine layer will be high enough for coastal drizzle. Long Term Issued at 240pm PDT Monday August 10 2026 (Wednesday through next Sunday) For Wednesday an upstream feature gets enhanced by a jet max west of Pt Conception. This feature has peaked our interest as it will lead to a low confidence high impact scenario. Latest model guidance shows there is enough moisture and instability to at least warrant a mention of showers and thunderstorms. Pt forecast soundings shows decent instability, dry low levels, but some CIN leading to the lower confidence. Pattern recognition also brings some pause as previous fires in 1999 and 2008 had upper level disturbances off the Central Coastal. This setup is close, but not exactly like previous lightning busts. As such, decided to not issue any Fire Weather Headline, but add 15% chance of showers/thunderstorms to Monterey/San Benito Wednesday afternoon and evening. Outside of the convective threat, sensible weather trends continues. Cooler weather for Wednesday and Thursday. Night and morning clouds clearing to the coast each afternoon. Coastal drizzle has been added to the forecast. Over the weekend a subtle warming trend develops as a low deepens near the Gulf of AK and drops south. The southward trajectory well offshore of the West Coast will also the inland Four Corners ridge to ease westward. Marine (Tonight through next Sunday) Issued at 935pm PDT Monday August 10 2026 Fresh to strong northwest winds will continue to produce rough seas up to 13 feet across the northern outer waters through Thursday. Long period southerly swell will gradually increase from 15 seconds through the middle of the week, up to 19 seconds by Friday into Saturday. Fire Weather Issued at 205pm PDT Monday August 10 2026 Timber Fire - complicated weather around the vicinity of the Timber Fire. There will be a vast difference is weather along Hwy 1 and along Coast Ridge Rd. The marine layer will keep the Hwy 1 region cool, damp, and drizzly. Above the marine layer will remain mild and dry. Above the marine layer is also a region that has baked and dried over the last 7 to 10 days with little to no relief. Thankfully, wind does not appear to be overly strong. Very diurnally driven wind patterns. The real wild card for the Timber Fire will be thunderstorm chances on Wednesday. REad the long term above for more details. After coordinating with neighboring offices and fire partners decided to mention the chance and not issue any Red Flag at this time. MM From the previous discussion, which is still valid for today. May obs as of 230PM show RH less than 20% and winds gusts 10-20 mph. Elevated fire weather conditions persist Monday across the higher terrain due to an increase in onshore flow on the heels of very hot and dry conditions. Slow improvement is expected with temperatures still 10 degrees above normal and minimum relative humidity of 15%- 30% Monday afternoon. Gusts up to 30 mph can be expected through gaps/passes and across ridgelines; namely, the Delta, Altamont Pass, Pacheco Pass, and Interior Mountains of Monterey and San Benito Counties. Moderate overnight recovery is expected Monday night; however, the highest terrain of the Central Coast will likely remain poor. NOAA San Francisco Bay Area Office: Watches - Warnings - Advisories CA...Coastal Flood Advisory until 2am PDT Thursday for CAZ006-506- 508-529-530. PZ...Small Craft Advisory until 9am PDT Thursday for Pt Arena to Pt Reyes 10-60 NM. x.com/nwsbayarea |
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