Point Arena to Pigeon Point between 150 and 250 NM Offshore Forecast
|Tonight...N Winds 5 To 15 Kt. Seas 6 To 10 Ft.|
|Wed...Nw Winds 5 To 10 Kt, Becoming S To Sw 5 To 15 Kt. Seas 6 To 8 Ft.|
|Wed Night...W To Sw Winds 5 To 15 Kt. Seas 9 To 15 Ft.|
|Thu...N To Nw Winds 10 To 20 Kt, Becoming N 5 To 15 Kt. Seas 11 To 16 Ft.|
|Thu Night...N To Ne Winds 5 To 10 Kt. Seas 11 To 14 Ft.|
|Fri...Ne Winds 5 To 10 Kt, Becoming Variable. Seas 9 To 11 Ft.|
|Fri Night...Variable Winds Less Than 10 Kt, Becoming S. Seas 7 To 9 Ft.|
|Sat...S To Sw Winds 5 To 15 Kt. Seas 5 To 9 Ft.|
|Sat Night...N To Nw Winds 5 To 10 Kt, Becoming N 5 To 15 Kt. Seas 5 To 9 Ft.|
|Sun...N Winds 5 To 15 Kt. Seas 7 To 10 Ft.|
|Sun Night...N Winds 5 To 15 Kt. Seas 8 To 10 Ft.|
| 803 PM PST Tue Dec 1 2020 |
Synopsis for the Central California Coast and Bays Including the Monterey Bay, Greater Farallones and Cordell Bank National Marine Sanctuaries - PZZ500
Generally light to locally moderate northwest winds will prevail across the coastal waters into tomorrow. Expect winds to increase slightly and become breezy by late tomorrow into early Thursday. Moderate period northwest swell will persist through tomorrow. A much longer period northwest swell will arrive tomorrow and into early Friday bringing potential hazards in the surf zone.
| Area Forecast Discussion|
National Weather Service San Francisco Bay Area
952pm PST Tuesday Dec 1 2020
High pressure, along with light offshore flow, will maintain dry conditions across the region through the upcoming weekend, and likely into next week. Days will be mostly sunny and mild while nigheights will be clear and cool.
as of 9:52pm PST Tuesday...No forecast updates planned for this evening. Northerly gradient is about 2 mb down the coast but SFO to Winnemucca is a healthy 12 mb offshore. Even with that magnitude of offshore winds remains fairly light in the hills with the bulk of the gradient focused over the Sierra and SoCal. The offshore winds will keep skies mostly clear with continued sunny and mild days followed by clear and cool overnigheights given the dry airmass. Fire weather concerns are slowly increasing with latest fuel analysis showing that we are trending toward record dry fuel dryness for early December. Will need to continue to monitor for any wind events but at this time only seeing light offshore winds with still moderate overnight humidity recovery.
A weak shortwave will approach Cape Mendocino on Thursday but will have a hard time impacting the ridge, as winds look to remain light offshore. The 00z gfs keeps the forecast dry the next 7-10 days with continued periods of offshore winds.
conditions prevail over the region this afternoon with light onshore flow near the coast and offshore flow developing in the hills, ridges and peaks. Meanwhile, an amplified mid/upper level ridge remains stretched along much of the West Coast allowing for temperatures to warm into the mid/upper 60s for most areas away from the immediate coastline. With the drier air mass aloft and mostly clear conditions, temperatures overnight will cool once again into the 30s in the colder interior locations with 40s elsewhere. With the slightly drier air mass settling into the region overnight, do expect fog to be less prevalent across the Bay Area Wednesday morning.
Little change anticipated heading through midweek as the mid/upper level ridge pushes inland. A weak short-wave through is forecast to approach northern California Wednesday night into Thursday but will weaken and split as it encounters the dominate ridge. While this system may bring an increase in cloud cover across the region, there does not appear to be enough moisture and/or dynamics to produce precipitation. Thus, dry weather conditions are likely to prevail through the remainder of the week and upcoming weekend.
No significant changes and/or storm system expected through the forecast period with mild afternoons and cool nigheights likely to persist. Additionally, with the storm track staying well to our north, precipitation appears unlikely through next week as well.
.BEACHES...as of 09:25pm Tuesday...A very long period WNW swell will impact the Sonoma to Big Sur coast through the day on tomorrow and persist into Thursday. Initial forerunner waves of 24 to 27 seconds will begin to arrive along the Sonoma coast overnight tonight into early Wednesday morning before spreading southward through the day. The primary timeframe of concern from this event will be midday tomorrow into Thursday morning as the wave heigheights rise to 3 to 7 feet at a periodicity of 19 to 24 seconds. A high to extreme risk of sneaker waves will exist during this timeframe. The largest energetic sneaker waves will arrive irregularly every few minutes to as infrequently as once every 30 minutes during otherwise deceptively calmer seas and consequently may catch those on coastal jetties, rocks, piers, or shorelines offguard and may injure them or knock them into the cold, turbulent ocean. Beachcombing is not advised during this timeframe. In addition, strong rip currents will accompany the energetic wave train, particularly at WNW facing beaches. These type of events claim lives each year along our coast so extreme vigilance is advised if visiting the coast. Finally, moderate to locally large breaking waves of 14 to 18 feet will be possible later in the day on Thursday at WNW facing beaches as the swell period decreases and swell heigheights increase, thus this product will be in effect through the day Thursday. A beach hazard statement is in effect from 10am Wednesday to 4pm Thursday.
as of 08:03pm PST Tuesday...Generally light to locally moderate northwest winds will prevail across the coastal waters into tomorrow. Expect winds to increase slightly and become breezy by late tomorrow into early Thursday. Moderate period northwest swell will persist through tomorrow. A much longer period northwest swell will arrive tomorrow and into early Friday bringing potential hazards in the surf zone.
.MTR WATCHES/WARNINGS/ADVISORIES... .Tngt...NONE.