FXUS66 KMTR 150652 AFDMTR Area Forecast Discussion National Weather Service San Francisco CA 1152 PM PDT Wed Oct 14 2026 ...New SHORT TERM, LONG TERM... .KEY MESSAGES... Updated at 1149 PM PDT Wed Oct 14 2026 - Above normal temperatures continue into the weekend before a cooling trend begins Sunday into next week - Near critical fire weather conditions due to moderate flow and very dry conditions across the higher elevations Thursday and Friday - Potential for light rain and breezy onshore winds early to mid next week && .SHORT TERM... Issued at 1149 PM PDT Wed Oct 14 2026 (Tonight through Friday) Near critical fire weather conditions continue across the higher elevations, particularly the North Bay Interior Mountains, through Friday. A positively tilted upper level ridge remains over Oregon and Northern/Central California while a cut-off low lingers over Southern California. This setup promotes light to moderate offshore winds across the region with the potential for more moderate to gusty offshore winds across the higher elevations. Model guidance keeps gusts across the elevated terrain peaking between 20 to 30 mph with locally stronger gusts possible across the highest peaks (e.g. Mt. St. Helena). The GFS and HRRR are both in agreement that the SFO- WMC gradient will peak around -9 mb Thursday morning and -10 mb Thursday night into Friday. The NAM continues to be an outlier and suggests the gradient could peak around -14 mb but looking closer into their forecast wind gusts still keeps gusts in a similar, but slightly stronger range, of 25 to 35 mph. Very dry conditions are expected across the higher elevations during both the daytime and overnight hours. Much of the region will see daytime RH in the 10s to 20s with poor to very poor overnight recoveries with the worst recoveries across the higher elevations. Given the very dry conditions and potential for offshore winds, any spark has the potential to start a fire. Remember, one less spark one less wildfire. Warmer temperatures continue Thursday and Friday with highs in the 80s to low 90s on Thursday and upper 80s to 90s on Friday. Patchy Moderate HeatRisk is expected on Thursday but becomes more widespread across urban areas on Friday. If you are outdoors during peak heating, make sure you are drinking plenty of water and taking frequent breaks in the shade. The marine layer remains mixed out through the short term due to the presence of the ridge so expect minimal cloud coverage overnight. && .LONG TERM... Issued at 1149 PM PDT Wed Oct 14 2026 (Friday night through next Wednesday) Offshore winds decrease by Friday afternoon/evening as upper level ridging weakens and broad troughing returns to the region. High temperatures Saturday will still be warm in the 80s to low 90s but cooler temperatures return Sunday into next week. By Sunday, broad troughing returns to the region with temperatures cooling into the 70s to low 80s. Fall weather returns in force next week as we get our first potential rainmaker of the season. This low pressure system looks to originate from the Gulf of Alaska and will bring much cooler, moister air into the region as the surface low weakens and moves into California next week. Highs will be seasonal to below normal in the 60s to low 70s across the interior and upper 50s to low 60s along the coast. Rain chances increase Tuesday through late week with wetting rains (>0.10") likely across the Central Coast and potentially Santa Cruz County/the South Bay. Light rain is possible across the rest of the Bay Area but does not look to meet wetting rain criteria at this time. Guidance is showing a low (<10%) chance of thunderstorms next week so that will be something to keep an eye on as this event gets closer in time. && .AVIATION... (06Z TAFS) Issued at 959 PM PDT Wed Oct 14 2026 Generally VFR conditions prevail through the TAF period, with some high resolution models depicting patchy coastal stratus developing tonight. Low confidence in HAF getting fog and low stratus. If it does happen, the most likely period for development would be 08-11Z before offshore winds mix out the lower layers. Light winds persist overnight, before a moderate offshore push in the interior Thursday morning, balanced by a gentle onshore flow developing in the afternoon. Vicinity of SFO... VFR at the terminal through the TAF period. Light winds overnight will turn offshore Thursday morning before moderate northwest flow resumes in the afternoon. SFO Bridge Approach... Similar to SFO. Monterey Bay Terminals... VFR through the TAF period. Light to gentle offshore winds persist overnight into Thursday morning before the moderate northwest flow resumes afternoon. && .MARINE... (Tonight through next Tuesday) Issued at 959 PM PDT Wed Oct 14 2026 Moderate seas persist across the outer waters through Friday while the inner waters see slight to moderate seas. During this time frame, gentle to fresh northerly breezes continue. Moderate to fresh northerly winds return for the weekend, which should lead to building seas. && .FIRE WEATHER... Issued at 502 AM PDT Wed Oct 14 2026 Elevated to near critical fire weather conditions are expected for the higher elevations late tonight through Friday morning. The main areas of concern will be for the North Bay Interior Mountains and East Bay Hills. The strongest winds look to be over the North Bay Interior Mountains where gusts 30-40 mph are possible, perhaps up to 45mph or higher for the highest elevations. The East Bay Hills will be breezy as well, but may be closer to 25-35 mph with locally higher gust for exposed ridges and areas of higher terrain. Both areas will be dry with poor overnight RH recovery, which combined with the breezy winds, warmer weather, and available fuels leads to the elevated to near critical fire weather conditions. && .MTR WATCHES/WARNINGS/ADVISORIES... CA...None. PZ...None. && $$ SHORT TERM...Kennedy LONG TERM....Kennedy AVIATION...DialH MARINE...DialH 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