, Issued at 125 PM PDT Thu Jun 4 2026 (This evening through Friday)
Another afternoon of abundant sunshine across the Bay Area and Central Coast. The one exception to that statement is the Monterey Peninsula where low stratus continues to bump up against the terrain. Yesterday afternoon ended up being rather windy across the region. Today is less windy across the interior, but onshore flow is still occuring. KSFO is registering wind gusts of 25 kt this afternoon. Peeking at the 24 hour trend shows coastal areas are generally cooler while far interior are warmer, clear sign of onshore flow.
Tonight: Another night with a partial mixed marine layer. Hi-res guidance paints a picture of patchy stratus along the coast and locally inland with the biggest coverage over the Monterey Bay region. Almost a repeat of this morning.
Friday: Onshore flow remains with breezy afternoon seabreeze push. Outside of the marine influence temperatures will warm into the 80s and 90s again. Friday will end of being the warmest day of the bunch, but relief at night and onshore flow will keep HeatRisk values in check. Only the far interior locations reach the Moderate category.
..issued at 150 PM PDT Thu Jun 4 2026 (Friday night through next Wednesday)
We've been talking about an upstream upper low and associated trough bringing a noticeable cooldown over the weekend and that is still on track. A system currently near the Gulf of AK will move eastward bring lower H5 and colder 850mb temp dropping temperatures below seasonal levels Saturday and Sunday. Highs will 60s/mid 70s coast/bays and 70s to mid 80s interior. The dropping heights will help to bring a more defined marine layer with night/morning clouds too. Lastly, the cold advection aloft will bring a solid push of onshore flow with gusty winds along the coast and inland valleys/gaps/passes Saturday afternoon.
Early next week we get another secondary trailing system. Global models are struggling with the trailing system with some keeping the low way north and others dropping it over CA. Clusters also reflects the uncertainty with more members leaning toward a more southerly push. As such, we still have a mention of showers in the region Monday into Tuesday. Chances are highest over the waters/coast/Bay Area northward. Even if showers develop not expecting much in the way of precip totals.
Warmer and drier conditions develop by Wednesday and Thursday.
(06z TAFS) Issued at 947 PM PDT Thu Jun 4 2026
Strong northerly gradient will keep skies mainly VFR overnight into Friday for Bay Area terminals. Only cigs are forecast for KMRY and possibly KHAF under this pattern.
Vicinity of SFO, Westerly winds are easing with mostly clear skies overnight and to start the day Friday. VFR forecast Friday with increasing winds once again Friday afternoon/evening.
SFO Bridge Approach, Similar to SFO but lighter west winds.
Monterey Bay Terminals, Low cigs for KMRY through 16-17z Friday.
(tonight through next Tuesday) Issued at 242 PM PDT Thu Jun 4 2026
Hazardous conditions for small craft continue through the weekend. Gale force gusts are expected across the outer waters and along the coastal jet regions. Moderate to rough seas will continue to build through Friday to become rough to very rough for the inner and outer waters through the weekend. Conditions will gradually begin to improve Monday as northwesterly winds diminish to become fresh to strong and seas subside to become moderate.
Issued at 242 PM PDT Thu Jun 4 2026
A Beach Hazards Statement will go into effect at 3 AM Friday through 9 AM Saturday due to an increased risk of sneaker waves and strong rip currents. Long period southwest swell is approaching the Pacific coast, with periods of 17 to 18 seconds and a height of around 3 feet in the open waters. These long period swells result in increased risk of sneaker waves, potentially deadly waves which surge much further up the beach than expected and sweep unaware beachgoers into the ocean, and strong rip currents that can sweep the strongest swimmers away from shore. Never turn your back to the ocean! Inexperienced swimmers should stay from the water. Observe the waves for 20 minutes before moving closer. Swim near a lifeguard if possible, and if caught in a rip current, swim parallel to the coast away from the current, and then at an angle to shore.
RGass
Ca, Beach Hazards Statement from 3 AM PDT Friday through Saturday morning for CAZ006-505-509-529-530.
PZ, Gale Warning until 3 AM PDT Saturday for Pigeon Pt to Pt Pinos 10-60 NM-Pt Arena to Pt Reyes 0-10 nm-Pt Arena to Pt Reyes 10-60 NM.
Small Craft Advisory until 3 AM PDT Friday for Pigeon Pt to Pt Pinos 0-10 nm-Pt Reyes to Pigeon Pt 0-10 nm.
Gale Warning until 3 AM PDT Friday for Pt Pinos to Pt Piedras Blancas 0-10 nm.
