Pigeon Point to Point Piedras Blancas between 60 and 150 NM Offshore Forecast
|Tonight...N To Nw Winds 10 To 15 Kt, Increasing To 15 To 25 Kt. Seas 5 To 7 Ft.|
|Sun...N To Nw Winds 15 To 20 Kt. Seas 6 To 8 Ft.|
|Sun Night...N Winds 15 To 20 Kt. Seas 6 To 7 Ft.|
|Mon...N To Nw Winds 15 To 20 Kt. Seas 5 To 7 Ft.|
|Mon Night...Nw Winds 15 To 20 Kt, Diminishing To 10 To 15 Kt. Seas 5 To 6 Ft.|
|Tue...Nw Winds 5 To 15 Kt. Seas 5 To 6 Ft.|
|Tue Night...W To Nw Winds 5 To 15 Kt. Seas 5 To 6 Ft.|
|Wed...N To Nw Winds 5 To 15 Kt. Seas 4 To 6 Ft.|
|Wed Night...N To Nw Winds 10 To 20 Kt. Seas 4 To 7 Ft.|
|Thu...N To Nw Winds 10 To 20 Kt, Becoming Nw 10 To 15 Kt. Seas 7 To 12 Ft.|
|Thu Night...N To Nw Winds 10 To 20 Kt. Seas 10 To 13 Ft.|
| 230 PM PDT Sat Sep 19 2020 |
Synopsis for the Central California Coast and Bays Including the Monterey Bay, Greater Farallones and Cordell Bank National Marine Sanctuaries - PZZ500
Northwest winds will increase this afternoon with locally stronger conditions along the Big Sur Coast south of Point Sur. These winds will generate steep fresh swell resulting in hazardous seas conditions for smaller vessels. Mixed seas will continue with a shorter period northwest swell and a moderate period south to southwest swell. A longer period southwest swell will arrive Sunday morning.
| Area Forecast Discussion|
National Weather Service San Francisco Bay Area
521pm PDT Sat September 19 2020
Warm temperatures will continue through Sunday across the region. A mild cool down is forecast to follow during the first half the work week with another warming and drying trend expect late in the week. Dry conditions will persist for at least the next week.
as of 02:14pm PDT Saturday...A weak upper level ridge transiting the Bay Area and Monterey Bay regions this weekend is bringing a warming and drying trend. This ridge is chasing a weak trough eastward which will help to keep the flow out of the north again tonight and into early tomorrow. This means a very weak offshore flow will likely develop overnight pulling in dry air and any smoke that is peeling off fire to the north of the Napa/Sonoma counties. Afternoon satellite is picking up on smoke moving over Sonoma County with a few streaks of smoke making their way down through the Bay Area. These streaks are very faint on satellite, but have caused a mild deterioration in air quality, as seen on fire.airnow.gov. Expect this pattern to continue into Sunday. Temperatures on Sunday are expected to be a handful of degrees warmer than today as the apex of the weak ridge crosses over. As this occurs, winds will return to a more onshore pattern and help to mix out any smoke that had drifted into the area.
A lifting and filling upper low over the Northern Gulf of Alaska will cause a weak trough to limp across the region overnight Sunday through early Tuesday. This will cause heigheights to lower and allow for a cooling trend to establish. Due to the weak nature of this trough, cooling will only be a few degrees below normal for daytime highs while the overnight lows remain about normal. Winds will remain light around this feature.
Mid to late week another ridge is forecast to cross the region as an upper low deepens in the western Gulf of Alaska, sending the ripple, in form of the ridge, downstream in the atmosphere. This will bring daytime highs back to normal. The real story here will be what happens to the trough that develops off the parent low. As the parent low transits eastward, models struggle to come into agreement as to the depth of the low and timing of passage over the region. Either way, as the trailing trough slides to the east of the region, we expect a dry offshore (NE) wind to develop. The magnitude is very uncertain at this point, as is the timing. At this point there is no reason to put quantitative values on the either, as they will change between now and then. That said, we are watching this system closely as fuels remain seasonably dry and capable of carrying fire.
as of 01:29pm PDT Saturday...Northwest winds will increase this afternoon with locally stronger conditions along the Big Sur Coast south of Point Sur. These winds will generate steep fresh swell resulting in hazardous seas conditions for smaller vessels. Mixed seas will continue with a shorter period northwest swell and a moderate period south to southwest swell. A longer period southwest swell will arrive Sunday morning.
.MTR WATCHES/WARNINGS/ADVISORIES... .Tngt...SCA...Pt Arena to Pt Reyes 0-10 nm until 9 PM SCA...Pigeon Pt to Pt Pinos 0-10 nm until 9 PM SCA...Pt Pinos to Pt Piedras Blancas 0-10 nm until 9 PM SCA...Pt Arena to Pigeon Pt 10-60 nm