, Issued at 1201 AM PDT Sat Jun 13 2026 (Sunday night through next Friday)
Overcast conditions are blanketing the entire Pacific coast along Sonoma County through Monterey County this early Saturday morning. The stratus has spilled through the Golden Gate, and is also expanding through the Salinas Valley. Nearly all airports are running cooler compared to this time 24 hours ago throughout the region, including inland terminals such as Livermore and Concord. The healthy onshore gradient of +3.4 mb from SFO to SAC will help expand the stratus as he night progresses.
Upper-level ridge remains over the eastern Pacific with northwest flow aloft prevailing over the Golden State. For this afternoon, expect seasonable temperatures along the immediate Pacific coast with temperatures in the 60s and 70s, while communities away from the oceanic influence will be much warmer in the 80s to near 100 degrees for far inland locations. While there will be a few degrees of cooling realized today, HeatRisk for the interior East Bay and South Bay will remain in the Moderate category. As a result, a Heat Advisory continues for these locations through 7 PM PDT this evening.
High tide flooding will continue to occur nightly along the low- lying areas of the Bayshore and the Pacific Coast through the middle of next week. The combination of an upcoming new moon and lunar perigee on Sunday, about 7 inches of additional tidal anomaly from a combination of storm surge, thermal expansion of the Eastern Pacific, and about 2 inches inches of Sea Level Rise since the vertical datums were established in the 80s and 90s will add up to bring tides up to 2.0 feet above normal through early next week. While lower than the historic tidal flooding in January (peaked at 2.6 ft) the tides this weekend could end up being the highest observed in the Summer, beating the current record of 1.7 ft from July 2022.
..issued at 1201 AM PDT Sat Jun 13 2026 (Sunday night through next Friday)
By Sunday and Monday, the grasp of the eastern Pacific ridge will fade as it flattens, courtesy of an Aleutian low. The end result for us will be a subtle (and welcomed) day-to-day cooling for interior communities and the usual June stratus along the Pacific Coast. The ridge will attempt to rebuild around Tuesday/Wednesday, which may mark the end of the cooling trend for inland areas.
(12z TAFS) Issued at 431 AM PDT Sat Jun 13 2026
Coastal stratus, fog and patchy light drizzle /IFR-LIFR/ continue to develop this morning. 24 hour satellite comparison shows greater areal coverage of stratus and fog across the San Francisco Bay and the North Bay valleys at the current time. Strong thermal ridging continues aloft while the marine layer depth is currently ~ 1200 feet. Recent high resolution model output shows diurnal surface warming and mixing eroding the stratus and fog fairly rapidly between 16z-18z this morning along the Bay Shoreline and across the North Bay valleys. Onshore winds will prevail during the 12z TAFs.
Vicinity of SFO, Satellite shows stratus close to SFO. Tempo IFR ceiling 12z-16z this morning then clearing to VFR for the remainder of the day and the evening. Scattered stratus is likely to redevelop tonight and Sunday morning. Mainly west wind 7 to 15 knots.
SFO Bridge Approach, Stratus /IFR/ continues to develop in the approach. As mentioned high resolution model output shows stratus mixing out 16z-18z this morning. VFR late morning, through the afternoon and evening. SCT-BKN stratus coverage tonight and Sunday morning.
Vicinity of SJC and OAK, Stratus /IFR/ is nearing SJC Airport. 24 hour trend at SJC is cooler with a higher dewpoint (greater water vapor), the wind is light northwest and the surface pressure is slightly lowering. Will add stratus IFR ceiling to the forecast with a mix out time 17z this morning. VFR for the remainder of the day and tonight, and stratus may return Sunday morning. For OAK Airport stratus /IFR/ until mix out time 17z this morning. VFR for the remainder of the day, stratus /IFR/ returns by early Sunday morning.
Monterey Bay Terminals, Stratus /IFR-LIFR/ until late morning mixing out to MVFR-VFR. Stratus /IFR-LIFR/ returns this evening and continues into Sunday morning. Winds mainly onshore 8 to 12 knots.
(today through Thursday) Issued at 851 AM PDT Sat Jun 13 2026
A gentle southerly breeze and moderate to rough seas with a low south southwest swell persist across most of the coastal waters. Fresh to strong breezes will be possible along the Big Sur coast through this evening. Winds will remain fairly consistent through the weekend as the seas subside.
Issued at 404 AM PDT Sat Jun 13 2026
Long period southerly swell will continue through the weekend, especially for south and southwest facing beaches. Hazardous beach conditions are advertised, specifically for moderate to steeply sloped beaches along the Pacific Coast of the North Bay, San Mateo, Santa Cruz counties. A Beach Hazards Statement is in effect for Pacific coast beaches along the central coast and the Bay Area coast from late tonight through late Tuesday night. Be sure check beach conditions before you head out. Sneaker waves will run up the beach much farther than other waves, potentially catching beachgoers by surprise and resulting in people being swept into the water. Rip currents are strong enough to pull the strongest swimmers away from shore. Swim near a lifeguard if possible. Stay back from the beach, and away from jetties, piers, beachside rocks, and other infrastructure near the water. Never turn your back to the ocean!
Ca, Coastal Flood Advisory until 3 AM PDT Wednesday for CAZ006-506- 508.
Beach Hazards Statement from late tonight through late Tuesday night for CAZ006-505-509-529-530.
Coastal Flood Advisory from 7 PM this evening to 3 AM PDT Tuesday for CAZ505-509-529-530.
Heat Advisory until 7 PM PDT this evening for CAZ510-513>515.
PZ, Small Craft Advisory until 9 PM PDT this evening for Pt Pinos to Pt Piedras Blancas 0-10 nm.
