, Issued at 116 PM PST Sat Feb 21 2026 (This evening through Sunday)
Water vapor satellite imagery this afternoon is quite spectacular as you can see the massive low pressure system sitting over the Eastern Pacific. Closer to home, here in CA, a disturbance is pushing over northern California. Any sight of rain is well to our north right now, but high clouds are slowly starting to infiltrate the area. The most likely area to see any accumulating rain today will be the northern part of Sonoma County, but it's capped at 20-40% chance of happening. Tomorrow chances increase to 20-80% for the North Bay, with the highest percentages being found over, you guessed it, northwestern Sonoma County with chances decreasing as you move southeastward. Elsewhere, dry conditions should prevail.
In terms of temperatures tonight, lows improve for much of the Bay Area tonight thanks to an increase in cloud cover. Temperatures will fall into the 40s for most areas, near 50 along the coast, and the upper 30s for areas that remain clear. For the Central Coast, Santa Cruz and the Monterey Bay area are similar. Colder conditions will be found across the interior portions, where low temperatures manly span the 30s. Opted to hold off on a Cold Weather Advisory for the Southern Salinas Valley and adjacent mountain zones given the coverage and duration of temperatures of colder temperatures.
..issued at 116 PM PST Sat Feb 21 2026 (Sunday night through next Friday)
The long term forecast remains interesting as an upper level ridge will build over the Desert Southwest and Baja California area. This should keep the low pressure either west or northwest of the region, which continues to mess with our rain chances this upcoming week. For now, rainy conditions look to occur from late Monday through Wednesday, favoring the Bay Area as a surface low pulls in moisture from the southwest. The highest amounts of rain should occur in the North Bay and San Francisco Peninsula/Santa Cruz mountains, with amounts generally decreasing as you move inland or south. Once the rain tappers off on Wednesday, a warming and drying trend is on tap for the end of the week.
(00z TAFS) Issued at 351 PM PST Sat Feb 21 2026
Periodically gusty southerly winds mainly during the daylight hours under maximum surface heating and vertical mixing winds, otherwise VFR. Less breezy to windy Sunday.
Vicinity of SFO, VFR. Southerly winds gusty at times through the remainder of the afternoon and into the early evening then decreasing to around 10 knots tonight and Sunday.
SFO Bridge Approach, Similar to SFO.
Monterey Bay Terminals, VFR. Variable to northwesterly winds 5 to 10 knots into the evening then southeasterly winds 5 to 10 knots tonight and Sunday. Winds becoming variable to onshore 5 to 10 knots mid to late Sunday afternoon.
(tonight through next Thursday) Issued at 340 PM PST Sat Feb 21 2026
Southerly breezes continue to increase with gale force gusts, especially across the northern waters. Rough to very rough seas persist starting tonight into the beginning of next week. Rain chances increase across northern waters tonight, becoming more widespread across the northern waters by Saturday night, then spread farther south by Monday. Winds and seas begin to ease by the middle of next week.
Ca, None. PZ, Small Craft Advisory until 3 AM PST Sunday for SF Bay N of Bay Bridge.
Small Craft Advisory until 9 PM PST this evening for Mry Bay.
Gale Warning until 3 AM PST Sunday 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-Pt Reyes to Pigeon Pt 0-10 nm.
Small Craft Advisory until 9 AM PST Sunday for Pigeon Pt to Pt Pinos 0-10 nm-Pt Pinos to Pt Piedras Blancas 0-10 nm.
