FXUS66 KMTR 101730 AFDMTR Area Forecast Discussion National Weather Service San Francisco CA 930 AM PST Sat Jan 10 2026 ...New AVIATION... .KEY MESSAGES... Updated at 247 AM PST Sat Jan 10 2026 - High and dry pattern with offshore flow and cold overnight conditions - Hazardous beach conditions at all Pacific Coast beaches Sunday through Thursday && .UPDATE... Issued at 906 AM PST Sat Jan 10 2026 Temperatures are starting to rise across the Bay Area and Central Coast again this morning with the Extreme Cold Warning and Cold Weather Advisory allowed to expire as of 9 AM PST. Morning lows were largely in the upper 20s to low 30s with the lowest reported temperature being 23 degrees in southern Monterey County (Argyle Road - 1109 ft, Interlake Road - 900 ft). Slightly warmer temperatures were reported in the higher elevations where low temperatures were in the upper 30s to low 40s. Expect two more chilly nights before we see more seasonal morning low temperatures returning early to mid next week. && .SHORT TERM... Issued at 247 AM PST Sat Jan 10 2026 (Today and tonight) High pressure building into the Intermountain West and a coastal trough off the California Coast will dominate our weather through the forecast period. This pattern is resulting in offshore flow, but it's generally light and remaining confined to the higher terrain. Calm, clear, and cool conditions with long nights is a match made in radiational cooling heaven. Some high clouds associated with a storm force low in the Gulf of Alaska are streaming in from the north, but they look thin enough on satellite imagery that they shouldn't be able to impact the minimum temperature forecast. As such, cold weather products remain in effect until 9AM this morning. To put this cold into context, we'll use SJC as an example. Their minimum temperature is forecast to drop to 35 degrees this morning which also occurred on December 29th and 30th 2025. Their daily record lowest temperature is 27 degrees set in 1920, there's a 0% chance of this being tied or broken this morning. The 00Z sounding observed an 850 millibar temperature of 7.75 degrees Celsius which is above the daily mean of 6.9 degrees Celsius. This indicates that we are not dealing with a cold snap as much as we are dealing with a colder than normal (5 degrees or so) couple of nights. Temperatures will warm to near seasonal normals this afternoon. Tomorrow morning's temperatures will be slightly warmer with cold weather products likely able to be reduced in area. && .LONG TERM... Issued at 247 AM PST Sat Jan 10 2026 (Sunday through Friday) We begin to warm up by tomorrow as an anomalously high amplitude longwave ridge and its axis moves in from the Eastern Pacific Ocean. This will result in a 10 degree warm up between now and Friday, bringing both maximum and minimum temperatures near 10 degrees above normal. Unfortunately, pleasant weather will coincide with hazardous beach conditions from Sunday through Thursday. If you are going to the beach: remain out of the water, stay off of waterside infrastructure, and never turn your back on the ocean! If you are wondering when it's going to rain next, it's going to be awhile as global ensemble clusters show the aforementioned ridge persisting through the end of the upcoming week. ECMWF and GFS ensembles show rain returning as early as the 20th with the likelihood increasing the following week. This dry spell isn't abnormal or something to be worried about. It's more of a welcomed break from the watershed (and meteorologists alike) after the recent onslaught of impactful rain. && .AVIATION... (18Z TAFS) Issued at 928 AM PST Sat Jan 10 2026 High confidence for VFR conditions through the TAF period with generally light offshore flow. More widespread mid-high level clouds today and into early Sunday morning. Low potential for fog in the North Bay, specifically at KSTS early Sunday morning. Vicinity of SFO...VFR conditions to prevail through the TAF period with offshore flow. SFO Bridge Approach...Similar to SFO. Monterey Bay Terminals...VFR conditions to prevail through the TAF period. && .MARINE... (Today through Thursday) Issued at 906 AM PST Sat Jan 10 2026 Light to gentle breezes prevail over the coastal waters as high pressure remains over the region. A longer period and larger northwesterly builds Sunday afternoon producing a rough sea state through at least Monday afternoon. Seas then subside into Tuesday. && .BEACHES... Issued at 353 AM PST Sat Jan 10 2026 A Beach Hazard Statement was issued for the coast from Sonoma to Monterey counties Sunday afternoon through Monday afternoon. A longer period moderate swell will bring hazardous beach conditions with increased risk for rip currents, sneaker waves, and larger shore break. This will result in dangerous conditions along the shoreline. Stay off of jetties, piers, rocks, and other waterside infrastructure. Remain out of the water to avoid hazardous surf and NEVER turn your back on the ocean. Monitor local weather, surf and tide forecasts at www.weather.gov/mtr. && .MTR WATCHES/WARNINGS/ADVISORIES... CA...Beach Hazards Statement from Sunday afternoon through Monday evening for CAZ006-505-509-529-530. PZ...None. && $$ SHORT TERM...Sarment LONG TERM....Sarment AVIATION...RGass MARINE...RGass 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