, Issued at 320 PM PDT Mon Jun 8 2026 (This evening through Tuesday)
A disturbance will continue to track through the PacNW through tomorrow morning. So far, this has spread high clouds across the region with radar showing light returns over the North Bay. Looking at sounding data, profiles have moistened some, but favor a drier air mass. As the system progresses and a front approaches, we could see this interact with the marine layer later this evening and into Tuesday morning. This would result in coastal drizzle and perhaps even some light rain/coastal drizzle for the northwestern portion of Sonoma County. The front is expected to pass across the region Tuesday morning, with drier air working in behind it. Skies will begin will clear behind the front, which will kick off the warming trend for the week. Highs for Tuesday will be in the mid 70s to mid 80s for interior valley locations and for the interior mountains. Along the coast, temperatures will range from the upper 50s to low 70s.
..issued at 320 PM PDT Mon Jun 8 2026 (Tuesday night through next Sunday)
The upper level pattern begins to change on Friday as high pressure builds over the Eastern Pacific, while troughing sets up over the west. This will lead to a stretch of warmer and drier weather through the rest of the forecast period. Some uncertainty remains in a few areas, such as where does the upper low go? The latest guidance continues to favor a inside slider type upper level trough, leading to offshore flow for our neck of the woods Wednesday through Thursday morning. The strongest winds look to occur over the interior North Bay region and along the East Bay and the Santa Clara Hills, where gusts up to 35-55mph are expected over favored ridges, gaps, and passes.
On Thursday, ridging builds in ever so slightly leading to the warmest day of the week. Widespread moderate HeatRisk is expected, with temperatures rising in to the 90s for many interior valleys, with some areas even cracking 100. Along the coast, temperatures will be warm as well, ranging from the mid 60s along the immediate coast to to mid 80s inland. Warmer weather lasts into the weekend, as the ridge holds over the EPac; however, temperatures will falter a few degrees each day. There is a sign we could see the marine layer start to return Saturday or Sunday, but confidence is low on when that occurs. If there is no major synoptic change, temperatures
(18z TAFS) Issued at 1155 AM PDT Mon Jun 8 2026
VFR through the afternoon as high level clouds begin to move across the region as the low pressure system to our northwest moves onshore. MVFR ceilings begin to fill in at terminals beginning as early as 5pm PDT today and will be widespread by sunset. Moderate westerly winds (10+ kts) prevail through the afternoon and early evening with embedded gusts in excess of 20kts. Medium to high confidence that most terminals will develop IFR ceilings overnight, except for LVK and SJC where it will remain MVFR through Tuesday morning. Winds ease overnight and may become variable at times at some sites, but will predominantly come from the west unless otherwise stated in TAF. North Bay and coastal terminals have a 20- 30% chance of experiencing some drizzle (up to 0.01 inches) this evening through the overnight hours from the approaching upper-level trough, though confidence is currently too low to include in the TAF.
Vicinity of SFO, VFR and strong gusts prevail through the day into the evening. MVFR ceilings will settle over the Bay around 5pm as westerly winds begin to ease. Ceilings will become borderline IFR- MVFR around sunset time and eventually get pushed to IFR through the overnight hours. Conditions improve back to VFR by late Tuesday morning due to mixing. High confidence in forecast.
SFO Bridge Approach, Similar to SFO.
Monterey Bay Terminals, VFR through the afternoon as westerly winds increase to moderate breezes (10-15kts). Winds diminish slightly early evening (~5pm PDT) with developing MVFR ceilings that eventually become IFR through the overnight hours. Expecting conditions to transition back to VFR by Tuesday morning.
(tonight through next Saturday) Issued at 320 PM PDT Mon Jun 8 2026
Gale force winds continue to affect the inner waters sound of point sure, with the southern outer waters still seeing gusty winds while the rest of the area is seeing winds and seas ease. Expect winds to ease across the waters overnight, but northwesterly wind and seas will begin to build again Tuesday morning, Hazardous conditions for small craft develop by mid- morning across the coastal waters. Gale force wind gusts are possible by early Wednesday morning over the outer waters. Winds and seas begin to ease again into Thursday, and stay light through the weekend.
Ca, None. PZ, Small Craft Advisory from 9 AM to 9 PM PDT Tuesday for Mry Bay.
Small Craft Advisory from 9 AM Tuesday to 9 PM PDT Wednesday 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 Pinos to Pt Piedras Blancas 0-10 nm-Pt Reyes to Pigeon Pt 0-10 nm.
Gale Warning until 9 PM PDT this evening for Pt Pinos to Pt Piedras Blancas 0-10 nm.
Small Craft Advisory from 9 AM Tuesday to 3 AM PDT Wednesday for Pt Arena to Pt Reyes 10-60 NM.
Gale Warning from 3 AM to 9 PM PDT Wednesday for Pt Arena to Pt Reyes 10-60 NM.
