Issued at 818 AM PDT Tue Apr 28 2026
Very little in the way of drizzle this morning as low clouds largely remained confined to the San Francisco Peninsula and inland into the East Bay. These low clouds are forecast to dissipate throughout the day and give way to mostly sunny sky conditions this afternoon. Coastal locations look to warm into the upper 50s to mid 60s and the interior reaching into the mid 60s to lower 70s. Otherwise, the forecast remains on track this morning with no updates anticipated at this time.
RGass
, Issued at 1047 PM PDT Mon Apr 27 2026 (Tonight through Wednesday)
The evening still had a few areas of rain in the northernmost portions of Sonoma Co, but it looks like they have mostly diminished. Drizzle chances linger for some of the coast and mountaintops districtwide overnight, while the valleys see good chances for fog building in the late night and lingering into the mid morning.
The steady warming trend continues for Tuesday with most areas getting close to average, though slightly below. Coastal areas will peak around 60 degrees while areas inland will see the upper 60s to mid 70s. Interior mountains will still be dealing with lingering moisture, so they'll still be on the cool side with some struggling to break 50 degrees in on the Big Sur Coast.
The warming comes from a building ridge to the north, but a cut off low to the south will prevent too much of a warm up, especially for the coastal areas. The low looks to offer just enough influence over the area that the marine layer stays intact through the week, and keep conditions breezy over the marine environment and immediate coast. This marine influence won't spread too far inland, so the more interior areas will see more of a steady warming until the pattern changes this weekend.
Wednesday sees high temperatures along the coast plateauing: still around 60 degrees. Areas inland will continue warming and get back above average with the more interior areas getting into the upper 70s and a few spots breaking 80.
Overnight lows will also see a slight warming trend, with most areas seeing lows in the 50s by the mid week.
..issued at 1047 PM PDT Mon Apr 27 2026 (Wednesday night through next Monday)
The inland warming trend looks to peak on Friday with the 80s expected across the interior areas and maybe a few 90s in the southern Salinas Valley. This will be while the coast will continue to stick to the 60s under the influence of good coastal breezes, the marine layer, and nightly marine stratus. The areas slightly inland will be a mixed bag. Those that see the marine layer and stratus look to only warm into the mid 70s, while areas that will be just outside of the marine influence will lean closer to 80 degrees. It'll be the kind of day where you drive from Half Moon Bay to San Jose and experience around a 20 degree difference.
A trough and low approach the region into Friday night, increasing cloud cover and expanding the marine layer both in height and inland push. Models are going back to the solution hinted at a few nights ago, with this low causing another drizzle-fest with some scattered light rain. The timing of the best rain chances is still not firm across models, but for now it does look better for drizzle in the mid-weekend with measurable rain arriving Late Sunday and into the next work week. Welcome to May-Gray!
(12z TAFS) Issued at 419 AM PDT Tue Apr 28 2026
Generally VFR conditions persist with some patches of MVFR stratus across the SF Bay Area and in the interior Central Coast. Confidence in widespread stratus development through dawn has diminished, with a passing trough potentially disrupting the marine layer. Stratus will dissipate after sunrise with gentle to moderate onshore pattern winds developing in the afternoon hours, with stratus beginning to develop on this evening, moderate confidence on timing and extent.
Vicinity of SFO, VFR at present with moderate confidence of MVFR stratus developing through dawn. Moderate west-northwest winds will develop in the afternoon and evening hours before diminishing in the late evening. High resolution models depict stratus flowing across the Golden Gate tonight, with moderate confidence of impacts to the terminal overnight into Wednesday morning. Greater confidence in stratus impacts at OAK.
SFO Bridge Approach, Lower confidence of stratus impacts tonight through Wednesday morning. Otherwise similar to SFO.
Monterey Bay Terminals, Low to moderate confidence of MVFR ceilings developing through dawn. Light drainage flow this morning will give way to gentle to moderate northwest winds this afternoon and evening, diminishing overnight. Stratus returns to MRY early this evening, with greater uncertainty about development at SNS before the end of the TAF period.
(today through Sunday) Issued at 818 AM PDT Tue Apr 28 2026
The gradient between high pressure over the Eastern Pacific and low pressure over California will build over the next few days, generating a strong NW breeze from Wednesday through Friday. These winds will build rough seas of 8-12 feet across exposed waters.
Ca, None. PZ, Small Craft Advisory from 3 PM Wednesday to 3 AM PDT Thursday for Pigeon Pt to Pt Pinos 0-10 nm-Pt Arena to Pt Reyes 0-10 nm-Pt Pinos to Pt Piedras Blancas 0-10 nm.
Small Craft Advisory from 3 PM this afternoon to 9 AM PDT Thursday for Pt Arena to Pt Reyes 10-60 NM.
Small Craft Advisory from 3 PM Wednesday to 9 AM PDT Thursday for Pigeon Pt to Pt Pinos 10-60 NM.
