, Issued at 115 PM PDT Fri May 8 2026 (This evening through Saturday)
Low clouds have dissipated across the interior earlier than yesterday despite the marine layer sitting around 2,000 feet this morning. As such, temperatures across the interior are forecast to warm into the upper 70s to mid 80s across the interior, in the upper 60s to mid 70s around the San Fransico Bay Shoreline, and upper 50s to lower 60s in areas that the coastal stratus remains in place (generally near the coast).
Tonight, expecting less inland intrusion of stratus as the marine layer compresses and high pressure continues to build in from the eastern Pacific. There is the potential for mist or light drizzle again tonight into Saturday morning, yet widespread measurable rainfall is highly unlikely. We are expecting a few degrees of warming on Saturday afternoon, especially in the interior where we are expecting less cloud cover in the morning. However, most locations across the region will remain in Minor HeatRisk.
..issued at 115 PM PDT Fri May 8 2026 (Saturday night through next Thursday)
The warming and drying trend will continue through the remainder of the weekend and are forecast to peak on Monday. This is when will see more widespread Moderate HeatRisk across the interior. However, the moderate risk has less areal coverage compared to yesterday's forecast. This is as we are expecting weaker high pressure aloft and greater presences of a marine layer early next week. However, Monday afternoon is still forecast to be the warmest day of the week with temperatures in the low to upper 90s across the interior, mid 80s to low 90s across inland away from the coast, and low 70s to mid 80s near coastal locations.
Temperatures are forecast to cool slightly by Tuesday, however will still remain some 5-15 degrees above seasonal averages. The cooling trend is forecast to continue through the remainder of next week with temperatures cooling to near seasonal averages as a more zonal flow returns as the ridge shifts eastward. There remains some uncertainty beyond the middle of next week as model solutions diverge. Be sure to check back for the latest developments in the forecast as we head into next week.
(06z TAFS) Issued at 1012 PM PDT Fri May 8 2026
Satellite looks quite different this evening as the stratus clinging to the coasts have dissipated, particularly around the North Bay. There a few patches linger around Marin County, wit h clear skies being observed elsewhere. Weak offshore flow is expected to develop over the North Bay tonight, which may hinder any stratus or fog development. Some hi-res guidance shows that KSTS may have some residual moisture and get a sunrise surprise type of situation, but even the depth of the moisture for that has been trimmed back. Opted to leave the TAF for KSTS with the sunrise surprise stratus but that could be adjusted with subsequent TAF updates. If that is the case, VFR conditions are expected over the TAF cycle, if not a brief period of IFR to MVFR cigs is possible at KSTS. VFR TAFs are expected for the interior East Bay terminals.
HAF will remain MVFR with a period of IFR ceilings taking over until late morning Saturday. Moderate onshore winds will persist through their TAF period as well.
Vicinity of SFO, Well the stratus ended up being fickle and is now reporting as FEW04 SCT011 at KSFO this evening. Confidence is low in the forecast for the overnight hours given no models really latched on to what happened today. Most guidance and soundings try and depict stratus flirting around KSFO, perhaps making a return around 9Z. Failing that, the time could be closer to sunrise and then only last for a few hours before becoming VFR. Breezy onshore winds are expected around 20-21Z and should last until 0-3Z with gusts up to 25-30kt. Winds ease and the marine layer might try to make a return late tomorrow night and into Sunday morning. Medium confidence in the forecast.
SFO Bridge Approach, Similar to SFO.
Monterey Bay Terminals, IFR ceilings dominate the first half of the TAF period with moderate onshore winds. SNS flirts with the boundary between MVFR-IFR, but there is high confidence that it will become IFR around 11/12Z, so I decided to go more pessimistic in the forecast as the models (GFS, LAMP, MOS) are in good agreement with one another. Westerly winds will become light overnight before picking up again mid-day Saturday. There will be a brief period of MVFR conditions late morning Saturday that will eventually scatter out for the afternoon. Don't get too comfortable though because our marine stratus deck is set to return Saturday evening bringing MVFR ceilings to the terminals.
(tonight through next Thursday) Issued at 855 PM PDT Fri May 8 2026
Fresh to strong northwest breezes with occasional near gale force gusts will continue through the remainder of the weekend along with building rough seas. Winds become more northerly and fresh to moderate on Sunday with rough seas beginning to gradually ease late Sunday into Monday. Gentle to moderate north to northwest breezes are expected on Tuesday and Wednesday.
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 Pt Arena to Pt Reyes 0-10 nm.
Small Craft Advisory until 9 PM PDT Sunday for Pigeon Pt to Pt Pinos 0-10 nm-Pigeon Pt to Pt Pinos 10-60 NM-Pt Pinos to Pt Piedras Blancas 0-10 nm-Pt Reyes to Pigeon Pt 0-10 nm.
Small Craft Advisory until 9 AM PDT Monday for Pt Arena to Pt Reyes 10-60 NM.
