FXUS66 KMTR 301215 AFDMTR Area Forecast Discussion National Weather Service San Francisco CA 415 AM PST Sun Nov 30 2025 ...New AVIATION, MARINE... .KEY MESSAGES... Updated at 103 AM PST Sun Nov 30 2025 - Another day of persistent fog and stratus in the North Bay (Today/Sunday). - Gusty offshore winds across the North Bay interior Wednesday. - Hazardous beach conditions through Wednesday. - King Tides arrive December 2 - 7. && .SHORT TERM... Issued at 103 AM PST Sun Nov 30 2025 (Today and tonight) High clouds make life for the meteorologist a little difficult this morning, as it blocks the low level clouds that are being observed in the North Bay, East Bay, and San Francisco region. The question for today, is, you guessed it, much like yesterday and pertains to if or when will the clouds clear out around there. Guidance favors perhaps a few hours earlier today, perhaps the early afternoon hours instead of the mid to late. Given that, opted to go with slightly higher temperature forecast than yesterday's observed temperatures for the N Bay and surrounding areas. Highs will still be below normal there by about 0 to 10 degrees, while the rest of the region is closer to normal for this time of year. && .LONG TERM... Issued at 103 AM PST Sun Nov 30 2025 (Monday through Saturday) The forecast remains on track for the extended period, with the first feature being stratus clearing out for the North and East Bays Monday and Tuesday afternoon. An inside slider remains on tap for midweek, which will bring breezy conditions to the interior North Bay hills Wednesday morning. Conditions will dry out as well in terms of minRH values; however, no major fire weather concerns are expected. Beyond that, the slider looks to dig south, which should allow for upper level ridging to build towards us. Dry weather remains in the forecast with near seasonal to slightly warmer than normal high temperatures expected for the end of the week. && .AVIATION... (12Z TAFS) Issued at 415 AM PST Sun Nov 30 2025 A chilly continental air mass with fog and low stratus /LIFR-IFR/ continues to advect on light offshore winds into the Bay Area from the Central Valley. It's VFR over the north Central Coast along with a few areas of fog and low stratus /LIFR-IFR/ in the valleys. As mentioned in the public discussion high clouds from the north are obscuring the fog and low stratus patterns; heavily relying on surface observations for the morning 12z TAFs. The SAC- SFO pressure gradient is 1.6 mb. The high resolution rapid refresh model forecasts ~ 1 mb SAC-SFO today and this evening, keeping the light offshore winds going. Forecast mix out times are low confidence partly because of the incoming cirrus clouds potential to at least initially slow incoming diurnal warming and mixing. Best probability for VFR will be closest to the coastline during maximum mixing hours under noon to mid afternoon solar heating. Model forecasts show decreasing cirrus during this time as well. Areas of fog and low stratus /LIFR-IFR/ redeveloping tonight and Monday morning. Vicinity of SFO...IFR stratus ceiling to 17z then MVFR stratus to 20z today. Best probability of VFR will be during the afternoon and evening, stratus /MVFR/ then forecast to redevelop by 08z tonight. Northeast to east wind 5 knots becoming northwest near 10 knots 20z today then light and variable tonight and Monday morning. SFO Bridge Approach...Similar to SFO. Monterey Bay Terminals...VFR-MVFR until 18z today, VFR for the remainder of the day and VFR likely continuing at least tonight, lower confidence if VFR will continue early Monday morning. Southeast cold air drainage winds will continue through morning to mid afternoon before shifting to onshore 5 to 10 knots mid to late afternoon. Light and variable winds this evening becoming southeasterly cold air drainage winds near 5 knots tonight and Monday morning. && .MARINE... (Today through Friday) Issued at 311 AM PST Sun Nov 30 2025 High pressure will remain located off the Oregon coast maintaining northerly breezes through the week. Northerly flow will increase through out the day today. Winds will be locally stronger over the outer waters and coastal jets. Wave heights and swell energy increase early this week. && .BEACHES... Issued at 828 PM PST Sat Nov 29 2025 Hazardous beach conditions will continue into next week with a very energetic surf zone. A beach hazards statement remains in effect for the coastline from Sonoma County to Monterey County through 10 PM PST Sunday evening. Sneaker waves can unexpectedly run significantly farther up the beach than normal, including over rocks and jetties. Rip currents are typically more frequent and stronger in the vicinity of jetties, inlets, and piers. A set of forerunner waves arrive early next week renewing the danger for sneaker waves. && .MTR WATCHES/WARNINGS/ADVISORIES... CA...Beach Hazards Statement through this evening for CAZ006-505-509- 529-530. PZ...Small Craft Advisory from 9 AM this morning to 9 PM PST this evening for Pt Arena to Pt Reyes 0-10 nm. Small Craft Advisory from 3 PM this afternoon to 9 PM PST this evening for Pt Pinos to Pt Piedras Blancas 0-10 nm. Small Craft Advisory until 3 AM PST Monday for Pt Arena to Pt Reyes 10-60 NM. Small Craft Advisory from 9 AM this morning to 3 AM PST Monday for Pigeon Pt to Pt Pinos 10-60 NM. && $$ SHORT TERM...KR LONG TERM....KR AVIATION...Canepa MARINE...Canepa Visit us at www.weather.gov/sanfrancisco Follow us on Facebook, X, and YouTube at: www.facebook.com/nwsbayarea x.com/nwsbayarea www.youtube.com/nwsbayarea