, Issued at 140 AM PDT Sun May 17 2026 (Today and tonight)
Water vapor imagery shows a broad trough of low pressure over the West this morning, with one disturbance currently moving across Nevada. In response to this system beginning to shift east, pressure gradients are starting to relax from their earlier peak. At this time, the SFO-ACV is down to -9.5 mbs, while the SFO- LAS is down to 12.6 mbs. Even though it is still breezy out there, gusts are mostly less than 40 mph along the coast. Therefore, have canceled the Wind Advisory to better reflect the current conditions.
That being said, the winds will still be a concern over the next 24 to 36 hours though, as another disturbance currently over Western Washington and Oregon dives into the Great Basin later today and tonight. This disturbances has a more traditional inside slider trajectory. As a result, expect another round of dry and gusty winds to develop. This time though, it will be the offshore pressure gradients that increase. North to northeast 925 mb and the 850 mb winds will increase to 40 kts over the North and East Bay after 06z Mon, before spreading south and west through the night. Therefore, have issued a new Wind Advisory focusing on the North, East, and South Bay Mountains as well as the Santa Cruz Mountains for Sunday night through late Monday morning. At this point in time, expect the gusts to be in the 45 to 55 mph range, with local gusts above 60 mph at the favored locations like Mount Diablo. Very dry conditions will accompany these winds, and should a fire start in dry grass areas, the fuels will carry that fire. Therefore, caution is encouraged if you have plans to be working outdoors. One less spark.
..issued at 140 AM PDT Sun May 17 2026 (Monday through Saturday)
As this the broad trough starts to push east on Monday, high pressure will start to rebuild over California, and be the dominate weather feature through midweek. As a result, a gradual warming trend will develop, especially across the inland areas. Expect some warming at the coast as well, but it will be more moderated, especially once the marine layer re-estabilishes itself by Wednesday. Models start to diverge towards the end of the week and next weekend, with some clusters suggesting another trough forming off the West Coast, while others suggest a flatter ridge, while others suggest the ridge persisting. Therefore, confidences is relatively low on what will actually happen. However, believe the marine layer will likely continue to bring low clouds and fog to the coastal areas. The question is just how far inland that influence will go. Palmer
(12z TAFS) Issued at 443 AM PDT Sun May 17 2026
Strong winds aloft continue to move through the region causing some spotty LLWS concerns into the late morning. Moderate to breezy winds linger through the mid morning but build across the region through the day. The gusty winds over the ocean will lead to an increase in sea spay, causing poorer visibilities over the marine environment and at near coastal sites, such as HAF and around the Monterey Bay. Winds reduce into the night, but remain strong aloft, leading to widespread LLWS both in speed and directions.
Vicinity of SFO, VFR through the TAF period. Breezy winds increase and become strong into the afternoon with gusts expected to exceed 30 kts. Winds turn more northerly into the evening, with the stronger winds aloft turning more northeasterly into the night, leading to LLWS. Winds reduce slightly deeper into the night and align better with winds aloft.
SFO Bridge Approach, Similar to SFO.
Monterey Bay Terminals, Sea spray will offer hazy conditions around the Monterey Bay, causing reductions in visibility. Winds increase into the afternoon becoming breezy and gusty across the area. Gust cut off and winds reduce into the night, but stay strong aloft causing LLWS conditions.
(today through Friday) Issued at 443 AM PDT Sun May 17 2026
Widespread gale force gusts continue to affect the waters. Strong northerly winds last through the weekend and last into Monday, with storm-force warnings in effect for the northern outer waters and the inner waters south of point pinos. The rest of the waters look to have near or infrequent storm force gusts during that time. Storm warnings degrade into gales by the late afternoon on Sunday. Winds begin to ease into that night and into the early work week. Expect rough seas through the weekend with up to 19 ft waves during the strongest winds, but seas will also ease into the work week.
Issued at 140 AM PDT Sat May 16 2026
A Beach Hazards Statement remains in effect for west facing beaches along the Pacific Coast through 9 AM Monday due to strong winds over the marine environment leading to hazardously strong wind waves and overall rough seas. Dangerous swimming, boating, and surfing conditions can be expected. Large breaking waves can overpower swimmers resulting in significant physical injury and increase the risk of drowning. Gusts will stay strong along the immediate coast, causing blowing and drifting sand and increased sea spray. Water rescue attempts may be hampered by reduced visibilities from the sea spray. Remember, NEVER turn your back on the ocean.
Ca, Beach Hazards Statement through Monday morning for CAZ006-505- 509-530.
Wind Advisory from 11 PM this evening to 11 AM PDT Monday for CAZ504-512-514-515.
Coastal Flood Advisory until 3 AM PDT Tuesday for CAZ506.
PZ, Gale Warning until 3 AM PDT Monday for Pigeon Pt to Pt Pinos 0- 10 nm-Pigeon Pt to Pt Pinos 10-60 NM-Pt Arena to Pt Reyes 0- 10 nm-Pt Reyes to Pigeon Pt 0-10 nm-SF Bay N of Bay Bridge.
Gale Warning until 9 PM PDT this evening for Mry Bay.
Storm Warning until 9 AM PDT this morning for Pt Pinos to Pt Piedras Blancas 0-10 nm.
Gale Warning from 9 AM this morning to 3 AM PDT Monday for Pt Pinos to Pt Piedras Blancas 0-10 nm.
Storm Warning until 3 PM PDT this afternoon for Pt Arena to Pt Reyes 10-60 NM.
Gale Warning from 3 PM this afternoon to 9 AM PDT Monday for Pt Arena to Pt Reyes 10-60 NM.
