Severe thunderstorms which can bring large hail, damaging winds, and isolated tornadoes will be possible over parts of the central U.S. through this weekend. Thunderstorms with heavy to excessive rainfall moving from Texas into the mid-Mississippi Valley through this weekend may produce areas of flooding. Read More >
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634 FXUS66 KMTR 051751 AFDMTR Area Forecast Discussion National Weather Service San Francisco CA 1051 AM PDT Fri Jun 5 2026 ...New AVIATION, MARINE... .KEY MESSAGES... Updated at 125 PM PDT Thu Jun 4 2026 - Breezy to gusty onshore winds mainly in the afternoon and evening - Mild to hot conditions Friday afternoon across the interior - Notable cool down for the weekend through the middle of next week - Hazardous beach conditions Thursday night through Saturday morning && .UPDATE... Issued at 643 AM PDT Fri Jun 5 2026 Some stratus clouds have developed near Half Moon Bay, within the Monterey Bay region and down through the Salinas Valley, with some high clouds across the North Bay and the rest of the region remaining clear. Clearing of the stratus clouds is expected within the next three or four hours, and the forecast remains on track. DialH && .SHORT TERM... Issued at 1245 AM PDT Fri Jun 5 2026 (Today and tonight) Satellite shows a few patches of cirrus clouds and coastal stratus clouds otherwise it`s clear. Coastal haze and strengthened cold water upwelling has returned in response to gusty northwest winds over the coastal waters. Dry weather continues under a strong high pressure system. The northerly ACV-SFO pressure gradient is strong at 8.3 mb and the onshore SFO-SAC pressure gradient is moderate at 2.9 mb. Expect sun with daytime highs in the upper 60s/70s coastside to the 80s/90s well inland today. Mainly clear with low temperatures cooling to the 50s tonight. && .LONG TERM... Issued at 1245 AM PDT Fri Jun 5 2026 (Saturday through Thursday) An upper level trough returns Saturday and Sunday. This will bring cooler temperatures Saturday and Sunday. Expect dry weather with more comfortable outdoor daytime temperatures for the weekend. Model output has varied some on the chance of rain for the Bay Area early next week, nonetheless an active pattern favors a rain chance. Rain may be mixed with drizzle. After this timeframe a strengthening 500 mb ridge of high pressure develops with a warming and drying trend late next week. && .AVIATION... (18Z TAFS) Issued at 1049 AM PDT Fri Jun 5 2026 VFR ceilings (clear skies), MVFR due to 3-5 mile visibilities as a result of haze. These conditions should continue to improve throughout the day as onshore winds increase and is likely to mix out the hazy conditions. Fairly high confidence for VFR ceilings to prevail through the TAF period, yet MVFR conditions possible again tonight and into Saturday morning as a result haze near coastal sites. Winds are forecast to be stronger by Saturday afternoon. Vicinity of SFO...VFR. High confidence for VFR to continue through the TAF period. West to northwest winds will increase through the day with gusts up to 30 knots expected by this afternoon and evening. Low to moderate (30%) confidence on gusts reaching 35 knots. Winds remain elevated through the night before easing a bit early Saturday morning. Winds will increase by Saturday afternoon with a 40%-50% probability of reaching 35 knots. SFO Bridge Approach...Similar to SFO. Monterey Bay Terminals...VFR ceilings (clear skies), MVFR due to 3-5 mile visibilities as a result of haze at KSNS. Onshore winds increase this afternoon and persist through the early evening. Fairly high confidence for VFR to continue through the TAF period. There is around a 20%-30% probability for MVFR ceilings and/or visibilities to develop around the terminals between 10Z-16Z Saturday. && .MARINE... (Today through Wednesday) Issued at 1049 AM PDT Fri Jun 5 2026 Hazardous conditions for small craft continue through the weekend. Gale force gusts are expected across the outer waters and along the coastal jet regions of Point Reyes and Point Sur today, expanding to all of the inner waters on Saturday. As a result, very rough seas are expected in the outer waters with rough seas for the inner waters. Conditions will slightly begin to improve Sunday with moderate seas and moderate to fresh northwesterly breezes expected by Tuesday. && .BEACHES... Issued at 351 AM PDT Fri Jun 5 2026 A Beach Hazards Statement is in effect through 9 AM Saturday for Pacific Coast beaches. Long period southwesterly swell of 17-18 seconds at 3 feet will result in an increased risk of sneaker waves and strong rip currents, especially at southwest facing beaches. Dangerous swimming and surfing conditions and localized beach erosion can be expected. Sneaker waves can sweep across the shoreline without warning, pulling people into the sea from rocks, jetties, and beaches. 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 through Saturday morning for CAZ006-505- 509-529-530. PZ...Small Craft Advisory from 3 PM this afternoon to 3 AM PDT Sunday for Mry Bay-SF Bay N of Bay Bridge. Gale Warning until 3 AM PDT Sunday 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. Small Craft Advisory until 3 PM PDT this afternoon for Pt Reyes to Pigeon Pt 0-10 nm. Gale Warning from 3 PM this afternoon to 3 AM PDT Sunday for Pt Reyes to Pigeon Pt 0-10 nm. Small Craft Advisory until 3 PM PDT Saturday for Pigeon Pt to Pt Pinos 0-10 nm-Pt Pinos to Pt Piedras Blancas 0-10 nm. Gale Warning from 3 PM to 9 PM PDT Saturday for Pigeon Pt to Pt Pinos 0-10 nm. Gale Warning from 3 PM Saturday to 3 AM PDT Sunday for Pt Pinos to Pt Piedras Blancas 0-10 nm. && $$ SHORT TERM...Canepa LONG TERM....Canepa 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 |
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