Scattered strong to severe storms capable of sporadic large hail and severe winds are expected this afternoon and evening across portions of western Texas. Widespread showers and thunderstorms may produce isolated flash flooding across the Ozarks today and the Southeast into next week. Read More >
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173 FXUS66 KMTR 300410 AFDMTR Area Forecast Discussion National Weather Service San Francisco CA 910 PM PDT Fri May 29 2026 ...New UPDATE, MARINE... .KEY MESSAGES... Updated at 1210 PM PDT Fri May 29 2026 - Temperatures return closer to normal by Sunday, and remain near or slightly above normal for much of the upcoming work week - Cooler than normal temperatures may return by end of next week && .UPDATE... Issued at 906 PM PDT Fri May 29 2026 No significant changes in the forecast this evening with quieter and drier weather in the wake of the upper level system that has now exited east. Areas of patchy fog are possible, especially in the North Bay between now and early Saturday morning but otherwise no hazardous weather concerns or impacts are expected tonight or Saturday. && .SHORT TERM... Issued at 1210 PM PDT Fri May 29 2026 (This evening through Saturday) The mid/upper level low that provided recent rainfall across the region has shifted over Nevada with a short-wave ridge building in from the Pacific. A mix of sun and clouds are expected throughout the afternoon as PWAT values remain ~1.00" and lingering surface moisture is abundant. Thus, cloud cover may limit how warm temperatures get today. We are forecasting maximum high temperatures to be in the upper 50s to middle 60s near the coast with middle 60s to lower 70s across the interior. Expecting low clouds once again tonight with the potential for fog in the North Bay (mainly around Santa Rosa, Petaluma, and Navato) and coastal drizzle around the Monterey Peninsula. Any low clouds and/or fog that does develop is expected to clear out by midmorning (Saturday). As the ridge aloft shifts further to the east over the region, expecting the warming trend to continue on Saturday with high temperatures ranging from the upper 50s along the immediate coastline, low to middle 60s just inland, and lower to upper 70s in the interior. && .LONG TERM... Issued at 1210 PM PDT Fri May 29 2026 (Saturday night through next Thursday) Zonal flow will return to the region through the middle of the upcoming week while 500mb heights warm slightly. This will result in a warming and drying trend across the interior. By Monday and moreso into Tuesday, the marine layer is forecast to return resulting in cooler temperatures in coastal locations versus inland as low clouds will be slower to dissipate each morning. Conditions look to cool by late in the work week as troughing approaches the West Coast. && .AVIATION... (00Z TAFS) Issued at 412 PM PDT Fri May 29 2026 As high pressure builds, the marine layer will reform and compress, bringing low clouds to the terminals tonight. The exact ceiling height is a little uncertain, but expect a lowering trend through the early morning hours. Otherwise standard onshore wind directions are expected through the TAF period. Vicinity of SFO...The ceiling has refused to yield this evening, and it doesn`t look like it will with ample cloud cover advecting in from the ocean. The current MVFR ceiling will certainly lower overnight as high pressure builds, but the exact cloud base in the morning is still tricky. Somewhere around 1,000 feet seems reasonable, but anything between 500 and 2,000 feet is possible as the marine layer gradually reforms and compresses. SFO Bridge Approach...Similar to SFO. Monterey Bay Terminals...The afternoon clearing will only last for a couple more hours before overcast skies take over this evening and lower through the night. It`s basically a guarantee that MVFR ceilings will return. The bigger question is if they will reach the IFR level Saturday morning. That`s more 50/50 right now. && .MARINE... (Tonight through next Thursday) Issued at 906 PM PDT Fri May 29 2026 Stronger high pressure to the north will result in moderate to fresh northerly breezes tonight and into the weekend. The strongest winds will be over the northern outer waters. Occasional gale force gusts will occur the north of the Golden Gate and along the Big Sur Coast. Increasing winds and building seas will lead to hazardous conditions over the coastal waters beginning tonight lasting into the weekend. && .MTR WATCHES/WARNINGS/ADVISORIES... CA...None. PZ...Small Craft Advisory from 3 PM to 9 PM PDT Saturday for Mry Bay. Small Craft Advisory until 3 AM PDT Monday for Pigeon Pt to Pt Pinos 10-60 NM-Pt Arena to Pt Reyes 0-10 nm-Pt Arena to Pt Reyes 10-60 NM-Pt Pinos to Pt Piedras Blancas 0-10 nm. Small Craft Advisory from 3 PM Saturday to 3 AM PDT Sunday for Pigeon Pt to Pt Pinos 0-10 nm-Pt Reyes to Pigeon Pt 0-10 nm. && $$ SHORT TERM...RGass LONG TERM....RGass AVIATION...Flynn MARINE...MM 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 |
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