Pigeon Point to Point Piedras Blancas between 150 and 250 NM Offshore Forecast
| Today...N Winds 15 To 20 Kt, Diminishing To 10 To 15 Kt. Seas 5 To 6 Ft. |
| Tonight...N Winds 10 To 20 Kt, Becoming 10 To 15 Kt. Seas 5 To 7 Ft. |
| Fri...N Winds 15 To 25 Kt. Seas 6 To 10 Ft. |
| Fri Night...N Winds 20 To 30 Kt. Seas 9 To 16 Ft. |
| Sat...N Winds 25 To 30 Kt. Seas 14 To 17 Ft. |
| Sat Night...N Winds 20 To 30 Kt. Seas 13 To 17 Ft. |
| Sun...N Winds 15 To 25 Kt. Seas 10 To 15 Ft. |
| Sun Night...N Winds 10 To 20 Kt, Becoming 10 To 15 Kt. Seas 7 To 11 Ft. |
| Mon...N Winds 10 To 15 Kt, Becoming Nw 5 To 10 Kt. Seas 5 To 8 Ft. |
| Mon Night...N To Nw Winds 10 To 15 Kt, Becoming Nw 5 To 10 Kt. Seas 4 To 6 Ft. |
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Area Forecast Discussion National Weather Service San Francisco CA 411am PST Thu Jan 23 2025 .SHORT TERM... (Today and tonight) Issued at 405am PST Thu Jan 23 2025 Amplified ridging pattern continues to dominate ambient weather across our area today. After another relatively cold start to the day, temperatures across the North Bay and Bay Area will be similar to yesterday, while the South Bay and Central Coast climb into the low to mid 70s under clear skies and light winds. A deepening upper level trough will begin moving south out of the Pacific Northwest later today, flattening the upper ridge overnight as it gradually works south. Overnight lows into early Friday will be slightly warmer than recent mornings, but still below normal in most locations. Long Term (Friday through Wednesday) Issued at 405am PST Thu Jan 23 2025 A pattern change will be in full swing across our region by sunrise Friday morning. The aforementioned upper trough moving south will bring the first of two cold fronts into our area by Friday afternoon. Increasing clouds on the leading edge of the upper trough out ahead of the surface cold front will keep highs in the North Bay and Bay area in the low to mid 60s, upper 50s along the coast. Daytime highs farther south ahead of the cold front will peak in the upper 60s to low 70s over the Central Coast. By early Saturday morning, the disturbance begins to split off from the Polar Jet as a closed upper low develops over our area. Cold Arctic sourced air aloft will result in H85 temps around 0C (approx 5-6 degrees below normal for this time of year) accelerating impressive low level lapse rates to 9-10 degrees/km in the surface/marine boundary layer by early Saturday afternoon. Shallow low level moisture will be a limiting factor, however deterministic guidance has trended slightly west with the center of the upper low, allowing more time over coastal waters to draw moisture from. NBM PoPs seems to capture that potential with increased chances over Monterey County and San Benito County from previous forecasts. Chance for thunderstorms remain around or less than 10 percent attm, but will continue to be watched closely. The second, stronger surface cold front arrives Saturday morning bringing a surge of reinforced colder air across our region. Highs on Saturday and Sunday will struggle to reach 60 area wide, and remain in the 40s for higher elevations. Potential for accumulating snow, especially in the San Lucias will also be watched closely, with the freezing line still around 4000ft. Strong northerly winds at higher elevations may require a Wind Advisory as soon as early Saturday morning across higher elevations of the North Bay Interior Mountains and East Bay Hills, with gusty winds not easing until later Sunday night. Cooler Arctic air continues channeling south on the back side of the exiting low through most of next week, until upper ridging begins to build over the West Coast late next week. Marine (Today through Tuesday) Issued at 405am PST Thu Jan 23 2025 Widespread strong northerly winds hazardous to small craft are expected Friday through Sunday in the inner and outer waters with the bays remaining sheltered. Frequent gale force gusts in the northern outer waters and infrequent gale force gusts in the southern outer waters are to be expected. Rough to very rough seas are expected Friday through Sunday before wave heigheights begin to abate Monday. NOAA San Francisco Bay Area Office: Watches - Warnings - Advisories CA...Frost Advisory until 9am PST this morning for CAZ506-510-516- 518. PZ...Small Craft Advisory from 3pm Friday to 9am PST Saturday for Pigeon Pt to Pt Pinos 10-60 NM-Pt Arena to Pt Reyes 0-10 nm. Small Craft Advisory from 9pm Friday to 9am PST Saturday for Pigeon Pt to Pt Pinos 0-10 nm-Pt Pinos to Pt Piedras Blancas 0-10 nm-Pt Reyes to Pigeon Pt 0-10 nm. Small Craft Advisory from 3am to 3pm PST Friday for Pt Arena to Pt Reyes 10-60 NM. Gale Warning from 3pm Friday to 9am PST Saturday for Pt Arena to Pt Reyes 10-60 NM. |
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