Marine Weather Net

Point Pinos to Point Piedras Blancas out 10-60 NM Marine Forecast


TONIGHT

NW
WINDS
5 - 10
KNOTS

THU

NW
WINDS
5 - 10
KNOTS

THU NIGHT

NW
WINDS
10 - 15
KNOTS

FRI

NW
WINDS
10 - 15
KNOTS

The Marine Weather Forecast In Detail:
PZZ576 Forecast Issued: 312 PM PDT Wed Apr 14 2021

Tonight...Nw Winds 5 To 10 Kt. Wind Waves 1 Ft. Nw Swell 4 To 6 Ft At 13 Seconds.
Thu...Nw Winds 5 To 10 Kt. Wind Waves 1 To 2 Ft. Nw Swell 3 To 5 Ft At 13 Seconds.
Thu Night...Nw Winds 10 To 15 Kt. Wind Waves 2 To 3 Ft. Nw Swell 3 To 4 Ft At 13 Seconds.
Fri...Nw Winds 10 To 15 Kt. Wind Waves 3 To 4 Ft. Nw Swell 4 To 5 Ft At 11 Seconds.
Fri Night...Nw Winds 15 To 20 Kt With Gusts Up To 25 Kt. Wind Waves 3 To 4 Ft. Nw Swell 5 To 6 Ft At 11 Seconds.
Sat...Nw Winds 10 To 20 Kt With Gusts Up To 25 Kt. Wind Waves 3 To 4 Ft. Nw Swell 5 To 6 Ft.
Sun...Nw Winds 10 To 15 Kt. Wind Waves 3 To 4 Ft. Nw Swell 4 To 6 Ft.
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312 PM PDT Wed Apr 14 2021 .Synopsis for the Central California Coast and Bays Including the Monterey Bay...Greater Farallones...and Cordell Bank National Marine Sanctuaries... Northerly winds are mainly light and variable. Some breezy winds will be felt in the San Pablo and San Franciso Bays this afternoon. The Bays could see some occasional moderate gusts, but will be isolated and short lived, as winds will diminish around sunset. A few buoys along the coast between Point Reyes and Half Moon Bay are showing near squared seas, and while it remains below small craft advisory caution is advised through tonight. Winds will mainly continue to diminish into the weekend, with the exception being a weak coastal jet setting up the evening of Thursday into Friday morning south of Point Sur. A moderate northwest swell prevails.
Area Forecast Discussion
National Weather Service San Francisco Bay Area
506pm PDT Wednesday April 14 2021

Synopsis
Generally light winds and seasonable temperatures are likely through Thursday with periods of night and morning low clouds. A warming trend is likely from Friday into the upcoming weekend, peaking Sunday. Dry weather conditions are also likely to persist through the forecast period.

as of 01:45pm PDT Wednesday...Stratus has mostly cleared this afternoon as GOES West visible satellite imagery now shows some patchy cumulus developing across the region. Synoptically, a broad upper low remains over much of the Western United States providing seasonable temperatures for the Greater Bay Area. Temperatures this afternoon are a few degrees warmer than yesterday in the 60s. Expect some additional warming this afternoon with highs ranging from the upper 50s to low 60s at the coast to upper 60s and low 70s inland. Similar conditions are forecast for tomorrow along with another round of night and morning low clouds as the upper low slowly moves eastward out of the area.

A warming trend will then begin on Friday as high pressure currently located over British Columbia moves southward into the Pacific Northwest while the aforementioned low retreats away from the region. Warming along the coast should remain fairly minimal Friday thanks to the marine layer. Inland areas can expect to warm into the mid to upper 70s with isolated interior locations possibly reaching 80 degrees. High pressure will continue to build along the California coast into the weekend bringing in warmer air as models show 850 mb temperatures between 12 to 15 deg C. This will translate to highs in the 80s for inland locations on Saturday with mid 60s to low 70s along the coast. Sunday looks to be the warmest day at the moment as the ridge builds further into northern California. Expect widespread 80s on Sunday across the interior with some areas potentially into the low 90s. This will be roughly 10 to 20 degrees above seasonal normals. Some warming will occur along the coast as well, though continued onshore flow and marine influences will likely keep temperatures more moderate.

Models show the ridge beginning to break down early next week with some cooling possible on Monday, though it will remain fairly warm. More confidence of further cooling on Tuesday as the ridge continues to weaken. Some difference amongst the models, however, on the overall synoptic pattern beginning Tuesday. The deterministic ECMWF (European Centre for Medium-Range Weather Forecasts) as well as the ensemble mean show a trough developing over California and Nevada into Wednesday with ridging over the eastern Pacific. The GFS however, does not show this feature in either the deterministic or ensemble mean and instead has the ridge further to the west brushing the coastline. This will make a difference in regard to just how much cooling the area sees Tuesday and Wednesday. Did not make any significant changes to the temperature forecast in the extended for this reason. Will keep an eye on future model runs, but either way dry conditions look to persist through the forecast period.

Looking out in the longer term, both the GFS and ECMWF show a broad low pressure system approaching the West Coast heading into the last weekend/week of April. A good number of the GFS/ECMWF ensembles at least show some precipitation for California with the ECMWF a bit more optimistic than the GFS. This is still fairly far out in the future so take it with a grain of salt. Will keep an eye on the models the next several days.

Marine
as of 03:38pm PDT Wednesday...Northerly winds are mainly light and variable. Some breezy winds will be felt in the San Pablo and San Franciso Bays this afternoon. The Bays could see some occasional moderate gusts, but will be isolated and short lived, as winds will diminish around sunset. A few buoys along the coast between Point Reyes and Half Moon Bay are showing near squared seas, and while it remains below small craft advisory caution is advised through tonight. Winds will mainly continue to diminish into the weekend, with the exception being a weak coastal jet setting up the evening of Thursday into Friday morning south of Point Sur. A moderate northwest swell prevails.

.MTR WATCHES/WARNINGS/ADVISORIES... .Tngt...None.

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