Issued at 849 AM PDT Fri May 8 2026
Despite the marine layer around 2,000 feet in depth, low clouds are quickly dissipating across the interior this morning. This trend will continue through late morning and by the afternoon low clouds will be limited to coastal areas. Thus, mostly sunny conditions are forecast for this afternoon with the warming trend continuing. The ongoing forecast remains on track at this time with no updates anticipated this morning.
RGass
, Issued at 1123 PM PDT Thu May 7 2026 (Tonight through Saturday)
Widespread low clouds have pushed inland from the coast, covering the bays and into some of the interior valleys. Expect chances for pockets of fog overnight, with the strongest chances in the North Bay. The marine layer's influence will be stronger than last night, that along with the blanket of lower cloud cover will keep overnight temperatures mild. Most areas will see lows in the 50s and upper 40s. Only far interior valleys and higher peaks will see lows as cold as the mid 40s.
Friday will start on the cloudy side, and that cloud cover looks to linger into the late morning and even the early afternoon for some areas. The duration of the cloud cover will keep coastal and slightly inland areas on the cooler side compared to the areas that stay clear. Inland cloud cover will start clearing in the mid morning, however areas around the bays will keep cloud cover into the late morning and early afternoon. Portions of the immediate coast looks to keep cloud cover through the day with moderate to breezy winds. This will keep temperatures on the coast in the lower 60s, then the 60s and 70s for areas more inland, and into the 80s for areas not experiencing the morning cloud cover. A few areas in the far interior portions of Monterey Co look to break 90 degrees once again.
Friday night will see the affects of the building ridge to the north with a compression of the marine layer and a reduction in the overnight inland push of coastal stratus. This means that cloud cover will still be prevalent along the coast, but will struggle to enter the SF Bay and reach more of the inland areas. Additionally, the inland push of coastal stratus looks to be much later, more so into the night than the evening.
With a weaker marine influence, reduced cloud cover, and building ridge, many more of the inland areas to break into the 80s for Saturday. Coastal areas will stay low 60s, and the slightly inland areas stay in the 70s, but most areas away from the coast look to break 80. A few of the more inland areas look to break into the mid 90s than previous days.
..issued at 1123 PM PDT Thu May 7 2026 (Saturday night through next Thursday)
The compression of the marine layer and building of the ridge continues Sunday and Monday, with Monday continuing to look like the hottest day of the forecast. For Monday itself: Most of the interior valleys look to break into the 90s with widespread 80s for all but the near-coastal areas seeing the 60s and 70s.
The ridge and increasing pressure will form a thermal belt, causing much warmer lows on the higher peaks (60s and a few 70s) and will allow for those peaks to break into the 90s for Monday afternoon.
Model trends continue to show notable cooling Tuesday, but it will still be on the hot side. The ridge begins to push east and a through deepens in the Pacific leading to weak onshore winds along with a dissipation of the thermal belt.
From there, models split off in the movement of said trough. Some outputs place it in the Northwest, putting us into stronger zonal flow. Others place it farther south into the Bay Area, leading to drizzle and much cloudier conditions. Then there are some hits that the trough forms a cut off low in the middle of the Pacific, calling for continued weak onshore flow. Each of these scenarios call for a cool-down into the mid to late week, but offer fairly different magnitudes. Be sure to keep checking back as the forecast develops.
(18z TAFS) Issued at 1029 AM PDT Fri May 8 2026
Marine layer cleared out sooner than this time yesterday at KSTS and South Bay sites but should clear at the remaining terminals by Noon PDT. Expect VFR conditions through this afternoon and much of the overnight except for the Monterey Bay Terminals. The return of stratus later tonight is more uncertain than the previous couple of nights, with low confidence in the exact timing and extent overnight into Saturday morning. Overall, guidance is leaning toward cigs to develop later during the overnight, closer to sunrise with less of a marine layer intrusion expected and weak fetch of offshore flow at around 2kft.
Vicinity of SFO, VFR cigs are expected by Noon PDT and should persist through the remainder of today into early Saturday morning. Exact timing of MVFR/IFR cigs is low confidence, with clearing expected by late Saturday morning once they do develop, with VFR expected for the remainder of the TAF period after clearing.
SFO Bridge Approach, Similar as SFO.
Monterey Bay Terminals, Confidence in MVFR/IFR cigs developing over the Monterey Bay terminals later this evening is higher than terminals to the north. Less influence from weak offshore flow aloft and better more persistent marine layer influence. KSNS is expected to clear sooner with terrain influenced circulation over Monterey Bay helping pull stratus back while maintaining coverage over KMRY through the end of the TAF period.
(today through Wednesday) Issued at 849 AM PDT Fri May 8 2026
Fresh to strong northwest breeze continue today and will persist through the weekend as rough seas continue to build. Rough seas will begin to ease later Sunday into Monday in response to winds becoming moderate to fresh northerly breezes.
Ca, None. PZ, Small Craft Advisory from 3 PM this afternoon to 9 PM PDT this evening for Mry Bay.
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.
