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Marine Weather and Tides Saranap, CA Version 3.4

NOTICE 12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed. 10/9/2019 Updated the Marine Zones. 9/4/2019 Fixed the weather maps due to NOAA moving them. 7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

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Sunrise 6:37AM

Sunset 7:41PM

Friday April 10, 2020 12:36 AM PDT (07:36 UTC)

Moonrise 10:08PM

Moonset 7:38AM

Illumination 94%

NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.

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7 Day Forecast for Marine Location Near Saranap, CA

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Area Discussion for - San Francisco/Monterey Bay Area, CA

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FXUS66 KMTR 100525 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 1025 PM PDT Thu Apr 9 2020

SYNOPSIS. Isolated showers will continue south of the Bay Area overnight otherwise dry. A gradual warming trend will then begin tomorrow continuing through the weekend as high pressure slowly builds over the region and the upper low continues to push farther inland. More seasonable temperatures and drier conditions will persist into at least early next week.

DISCUSSION. as of 9:37 PM PDT Thursday . A forecast update was completed earlier this evening to account for light shower activity currently located across the Central Valley but poised to pass over the South Bay and Central coast overnight. The 00z nam initialized well along with short term RAP/HRRR models showing the band of showers rotating westward across the region overnight. Currently Stockton is reporting light rain with the lastest trajectories bringing that band across Santa Clara county before midnight and then across the Central Coast overnight. Model diagnostics suggest that much of the forcing is from a 80-90 kt jets streak around 300 mb that is rotating around the upper low that is still bringing all sorts of wet weather to SoCal (places like Bakersfield and LA are already much above normal for April precip). Have to tip the hat to the ECMWF which more than one week ago showed this low wobbling around the state through Friday morning while the operational gfs and much of the blended/ensemble solutions kicked the low eastward. Alas, the Euro appears to have verified best with shower chances lasting through about sunrise Friday morning for locations around the Monterey Bay and southward.

There is high confidence that the forecast finally turns dry for all Bay Area locations Friday afternoon through the weekend and into early next week. Daytime highs will climb back into the 70s away from the coast it what will feel like some of the warmest weather we've had so far this spring.

Of course in response to that the eastern part of the country will cool down with the base of the longwave trough along the Sierra where the models do show some afternoon shower chances most afternoons with the lower resolution gfs trying to show some activity across our interior hills early next week but that looks doubtful. Best forecast at this time will be dry and seasonable over the weekend through early next week. The just received 00z gfs does show another weak system by late next week with no strong ridge building yet.

PREV DISCUSSION. as of 1:56 PM PDT Thursday . Satellite imagery shows the region remains under cloudy skies as the upper low that gave us our most recent rainfall continues to spin over southern California. This pesky and persistent low has been very slow to exit the region keeping isolated showers mainly south of the Bay Area into this morning. Over the past 12 hours as much as an additional quarter of an inch of rain has fallen over the Santa Cruz and Santa Lucia Mountains. Forecast models show one last possible push of scattered showers across the region tonight, again most likely south of the Bay Area, before the upper low finally progresses southward and then inland into the southern United States.

For those who are curious, just about the entire Greater Bay Area over the past two weeks has seen above normal precipitation for this time of the year with some locations exceeding their entire April normal rainfall in just over a week. The Monterey Airport did so in a single day with 1.71" falling on April 5th. The normal April rainfall for the airport is 1.12". However, most of the area is still about 40 to 55 percent of normal for the water year so far. After a fairly wet and cooler start to April, conditions look to warm and dry out beginning tomorrow.

The upper low will finally move eastward as an upper ridge builds over the eastern Pacific. Most areas tomorrow away from the coast will be in the mid to upper 60s with some locations possibly reaching 70 degrees. Coastal areas can expect temperatures in the upper 50s to mid 60s. Gradual warming will continue through the weekend as the ridge slowly shifts closer to the west coast. More widespread low to mid 70s are expected across the interior for the latter half of the weekend and into early next week with some areas even a few degrees above seasonal normals. Looking into the longer term, the CPC 6-10 and 8-14 day outlooks both show California with above normal temperatures and below normal precipitation. Both GFS and ECMWF ensembles show dry conditions persisting into at least the middle of the month.

AVIATION. as of 10:30 PM PDT Thursday . Mostly cloudy tonight with cigs lowering to MVFR range as models show abundant low-level moisture through Friday morning. A few showers rotating around the low over southern California will bring a chance for showers from the Santa Clara Valley and East Bay valley south through Friday morning.

Vicinity of KSFO . Cigs 4000-5000 ft lowering to around 1500 ft after 09Z. Light west to southwest wind becoming southeast after 06Z.

SFO Bridge Approach . Similar to KSFO.

Monterey Bay Terminals . MVFR cigs through 21Z. A few light showers 08Z-18Z.

MARINE. as of 10:21 PM PDT Thursday . A weak surface low pressure circulation is now south of Point Conception and moving east. Winds will switch to the northwest by Friday and will increase Saturday and Sunday as high pressure A long period southerly swell will mix with a moderate northwest swell through Friday.

MTR WATCHES/WARNINGS/ADVISORIES. Tngt. NONE.



PUBLIC FORECAST: RWW AVIATION: W Pi MARINE: W Pi

Visit us at www.weather.gov/sanfrancisco

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Weather Reporting Stations

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Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
MZXC1 - 9415102 - Martinez-Amorco CA	10 mi	49 min	WSW 9.9 G 13	56°F	58°F		1018.9 hPa
UPBC1	11 mi	49 min	W 9.9 G 13
PCOC1 - 9415144 - Port Chicago, CA	12 mi	49 min	SW 5.1 G 5.1	55°F	58°F		1018.5 hPa
LNDC1	13 mi	49 min	W 4.1 G 6	56°F			1019.2 hPa
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA	14 mi	49 min	WNW 6 G 8	56°F			1018.4 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA	15 mi	49 min	WNW 7 G 9.9	56°F			1018.9 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA	15 mi	49 min	W 8.9 G 8.9
AAMC1 - 9414750 - Alameda, CA	15 mi	49 min	W 5.1 G 8	56°F	59°F		1019.3 hPa
OKXC1 - 9414776 - Oakland (Berth 34), CA	15 mi	49 min	WNW 7 G 9.9	55°F			1019.3 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA	16 mi	49 min	W 4.1 G 7	56°F			1019.6 hPa
OBXC1	16 mi	55 min		55°F				54°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA	18 mi	49 min	W 6 G 12	55°F			1018.2 hPa
PXSC1	18 mi	49 min		56°F				55°F
RCMC1 - 9414863 - Richmond, CA	18 mi	49 min	W 5.1 G 8	55°F	57°F		1019 hPa
TIBC1 - Tiburon Pier, San Francisco Bay, CA	20 mi	63 min	S 8.9	54°F			1019 hPa
FTPC1 - 9414290 - San Francisco, CA	22 mi	49 min			59°F
SFXC1 - San Francisco Bay Reserve, CA	22 mi	112 min	ENE 4.1
RTYC1 - 9414523 - Redwood City, CA	28 mi	49 min			61°F
46237 - San Francisco Bar, CA (142)	31 mi	67 min			55°F	4 ft
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA	42 mi	47 min	Calm G 1.9	54°F	53°F	4 ft	1020 hPa

Wind History for Martinez-Amorco Pier, CA

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SW9

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W10 G13

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W6 G10

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SW8 G12

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W15

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Airport Reports

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Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Concord, Buchanan Field, CA	6 mi	44 min	WSW 4	10.00 mi	Overcast	56°F	48°F	77%	1017.5 hPa
Oakland, Metro Oakland International Airport, CA	15 mi	44 min	WNW 8	10.00 mi	Mostly Cloudy	58°F	51°F	78%	1019.8 hPa
Hayward, Hayward Air Terminal, CA	16 mi	43 min	NW 7	10.00 mi	Overcast	55°F	50°F	83%	1019.9 hPa
Livermore, Livermore Municipal Airport, CA	19 mi	44 min	W 5	10.00 mi	Mostly Cloudy	53°F	48°F	83%	1018.1 hPa
San Francisco, San Francisco International Airport, CA	24 mi	41 min	W 9	10.00 mi	Mostly Cloudy	55°F	48°F	80%	1019.1 hPa

Link to 5 minute data for KCCR

Wind History from CCR (wind in knots)

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SW4

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E9 G16

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E13 G18

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NW8

NW13

W14 G18

W8

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S4

Calm

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Tide / Current Tables for Benicia, Carquinez Strait, California

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Tide / Current Tables for Oakland Harbor High Street Bridge, San Francisco Bay, California Current

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Weather Map

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GEOS Local Image of CentralWestCoast    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East

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Wind Forecast for San Francisco/Monterey Bay Area, CA (3,6,7,8)

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Ground Weather Radar Station Sacramento, CA

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