, Issued at 109 PM PDT Sat Apr 11 2026 (This evening through Monday)
Rain showers and isolated thunderstorms remain in the forecast through early afternoon. Then, as a surface low approaches the northern California coast, a narrow cold-frontal rainband (NCFR) is forecast to approach the North Bay between 2 PM - 5 PM, 4 PM - 7 PM across the Bay Area, and 6 PM - 9 PM across the Central Coast. Along and ahead of the NCFR is when we have the greatest potential for damaging wind gusts exceeding 40 kt out over the ocean and bays. This will also be when we have the greatest potential for rotating cells that may produce waterspouts and/or weak tornadoes. Wind gusts are also expected to reach up to or exceed 50 mph along the coast and in the higher terrain during the aforementioned timeframes. Any stronger convection will be capable of producing stronger wind gusts. Again, much of our region remains under a Marginal Risk for sever weather today.
The aforementioned low pressure system is forecast push into northern California later tonight and become quasi-stationary through Sunday. Thus, scattered to numerous rain showers and isolated thunderstorms will prevail through Sunday and into early Monday morning as a colder/unsettled air mass moves into the region. This colder air mass will result in a low end potential for the region's highest peaks to see snowfall through Monday morning. However, little to no snow accumulations are forecast at this time.
..issued at 109 PM PDT Sat Apr 11 2026 (Monday night through next Friday)
The colder air mass will result in chilly temperatures across the interior both Monday and Tuesday mornings especially over the North Bay Valleys and interior Central Coast. Temperatures are currently forecast to be in the low-to-upper 30s in these areas with low 40s to near 50 degrees F elsewhere across the region. There is the potential for frost each morning across these interior regions, especially in the wind sheltered areas. Temperatures rebound to near seasonal averages by Thursday and Friday as ridging builds in from the eastern Pacific.
(06z TAFS) Issued at 1001 PM PDT Sat Apr 11 2026
The main rain band has left the terminal regions, but with convective showers expected through Sunday and perhaps into Monday, overall confidence remains low to moderate, especially in regards to wind speeds where convective showers may greatly impact local conditions. Conditions are expected to be generally VFR-MVFR with gentle to moderate winds from the southeast to the southwest through the night, with southwest winds picking up through Sunday morning and afternoon. Scattered showers and chances for thunderstorms continue through Sunday, with a general decrease in coverage through the day.
Vicinity of SFO, Low-end VFR to MVFR conditions with scattered showers through the TAF period. Low confidence in the wind forecast, where the best estimate has moderate southeast flow through the overnight hours before the winds turn southwesterly Sunday afternoon, with gusts to 20 kt. Winds then turn westerly and diminish on Sunday night.
SFO Bridge Approach, Similar to SFO.
Monterey Bay Terminals, VFR-MVFR conditions with scattered showers through the TAF period with broadly westerly winds overnight, with some LLWS concerns at SNS early Sunday morning as surface winds decouple from the flow aloft. Large scale southwest flow resumes Sunday morning with gusts to 15-20 kt in the afternoon before winds diminish Sunday night.
(tonight through next Friday) Issued at 1001 PM PDT Sat Apr 11 2026
The line of intense storms has moved onshore this evening, but scattered showers and locally gusty winds continue through Sunday. High pressure builds behind the system with fresh northwest winds developing early next week, as seas abate to become moderate through mid week.
Ca, None. PZ, Small Craft Advisory until 3 PM PDT Sunday for Mry Bay-Pt Reyes to Pigeon Pt 0-10 nm-SF Bay N of Bay Bridge.
Small Craft Advisory until 9 AM 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.
