, Issued at 1022 AM PDT Thu Mar 26 2026 (This afternoon through Friday)
Gusty winds will persist today and tonight into Friday morning across portions of the interior North Bay Mountains with an offshore fetch. The downslope component of the winds will have a slightly warmer influence on temps in Sonoma Valley and Napa Valley this afternoon and slow down RH recovery overnight, especially the higher you are in elevation. Otherwise, today will be pleasant with highs in the 70s to low 80s inland, 60s along the coast. Overnight lows in the northern North Bay will be in the upper 50s to near 60 with the thermal belt in place above approximately 1000ft, which is 15-20 degrees above normal. The rest of our area will still see a mild overnight with lows around 10 degrees above normal, mostly int he mid-50s with some cooler valley temps in the upper 40s.
Friday will be the first day of a gradual warm-up through the weekend, with highs tomorrow in the mid-70s to low 80s, across the interior, even warmer in souther Monterey County but still within Minor HeatRisk. Many coastal area will climb into the low 70s with a building ridge, surface high pressure with light and variable winds.
..issued at 1022 AM PDT Thu Mar 26 2026 (Friday night through next Wednesday)
Our area will mostly remain under the influence of the persistent ridging pattern we've seen the past week or two with relatively strong zonal flow acting on the apex of the ridge. We'll see temperatures gradually increase Saturday and once again Sunday, back up to 15-20 degrees above normal for most interior spots and warmer along the coast with continued light winds.
A pattern change begins to take shape Monday through the remainder of the forecast period, with a return of more robust onshore flow, an increasing marine layer and cooler temps. The signal for mostly beneficial wetting rains remains in the forecast, however differences in deterministic guidance persist lowering confidence in exact timing and potential rainfall amounts. For now the official forecast favors the North Bay and coastal ranges with onset as early as late Monday night with more widespread coverage later Tuesday into Wednesday.
(18z TAFS) Issued at 1106 AM PDT Thu Mar 26 2026
VFR through the TAF period with passing high clouds. Weak offshore flow this morning will become northwesterly by early afternoon across most terminals, especially at coastal/coastal adjacent locations. However, the terminals across the North Bay may experience offshore flow throughout the day. Winds are then forecast to weaken overnight before returning to offshore early Friday morning. There is a low-to-moderate potential for wind shear across the North Bay late this evening and into early Friday morning as north-northeasterly prevails aloft. Winds are forecast to be weaker Friday afternoon.
Vicinity of SFO, VFR. Northwesterly winds are forecast to increase this afternoon and evening before easing late in the night. Winds then shift to more northeasterly by Friday morning.
SFO Bridge Approach, Similar to SFO.
Monterey Bay Terminals, VFR. Light and variable winds becoming northwesterly by late morning or early afternoon. Winds diminish and become light easterly to southeasterly tonight and Friday morning.
(today through Tuesday) Issued at 1022 AM PDT Thu Mar 26 2026
Northern outer waters will continue to see northwesterly gales through the remainder of today and begin to gradually ease this evening. Rough seas will persist today, especially over the outer waters but also begin to ease later tonight into Friday. Relatively light onshore winds develop Friday into the weekend, with weather expected to develop through the middle of next week.
Ca, None. PZ, Small Craft Advisory until 9 PM PDT this evening 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.
Small Craft Advisory until 3 AM PDT Friday for Pt Pinos to Pt Piedras Blancas 0-10 nm.
Gale Warning until 9 PM PDT this evening for Pt Arena to Pt Reyes 10-60 NM.
