Sunday, April18, 2021
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Marine Weather and Tides
Port Costa, CA

Version 3.4
NOTICE
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:26AMSunset 7:48PM Sunday April 18, 2021 1:46 PM PDT (20:46 UTC) Moonrise 9:43AMMoonset 12:17AM Illumination 43% Phase: First Quarter Moon; Moon at 7 days in cycle
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.
Marine Forecasts
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PZZ530 San Pablo Bay, Suisun Bay, The West Delta And The San Francisco Bay North Of The Bay Bridge- 843 Am Pdt Sun Apr 18 2021
Today..NW winds around 5 kt, becoming sw 5 to 15 kt with gusts up to 25 kt this afternoon.
Tonight..SW winds 5 to 15 kt.
Mon..SW winds 5 to 15 kt.
Mon night..SW winds up to 10 kt.
Tue..SW winds 5 to 15 kt with gusts up to 25 kt.
Tue night..SW winds 5 to 15 kt.
Wed..W winds 5 to 15 kt.
Thu..SW winds 5 to 10 kt.
PZZ500 843 Am Pdt Sun Apr 18 2021
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Expect winds to gradually increase this afternoon and evening. Winds will then pick up further on Monday as a disturbance moves down from the pacific northwest into northern california. NEar gale force gusts may be possible over the northern waters by Tuesday morning. Elevated winds will persist through mid week. These winds will produce steep wind waves creating hazardous seas conditions, particularly for smaller vessels. Moderate northwest swell through the period along with a lighter longer period southerly swell.


7 Day Forecast for Marine Location Near Port Costa, CA
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location: 38.03, -122.15     debug


Area Discussion for - Sacramento, CA
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FXUS66 KSTO 182030 AFDSTO

Area Forecast Discussion National Weather Service Sacramento CA 130 PM PDT Sun Apr 18 2021

SYNOPSIS. Dry and well above normal temperatures through Monday. Cooler Tuesday with the chance of mainly mountain showers and isolated thunderstorms. Slight chance of showers Wednesday before returning to dry weather for the mountains.

DISCUSSION. High pressure will continue through Monday. Light winds with little change to some minor cooling for the daytime high temperatures are expected on Monday. We should see an increase in winds late in the day in the Delta that should persist through at least the evening hours as well.

Early Tuesday a low pressure system will begin to move into the far part of the state. Some showers and maybe a few mountain thunderstorms may be possible with the best chances around I-80 northward during the day. As the low shift southward in the evening hours chances of showers and thunderstorms shifts southward from around Alpine County north through Plumas County. Snow levels will be around 7500 feet with 1 to 3 inches of snow possible over the peaks. The pace of the low moving southward has increased from yesterday as a result there are increased areas further south with chances of precipitation. The other notable change is winds will shift northerly during the afternoon in the valley but do not look to be strong.

Wednesday there is low confidence in continuing mountain showers. Models in disagreement on the placement of the low either well east of the region or remaining over California. Clusters have shifted the trough axis south into Southern California compared to yesterday when it was over Central California so the trend is toward less of a chance for precipitation.

EXTENDED DISCUSSION (Thursday THROUGH Sunday).

A ridge of high pressure will return for this Thursday and Friday with drier and warmer conditions returning. Temperatures remain roughly 10 to 15 degrees above normal during this time. A pattern change may be seen over the weekend into next week, although cluster analysis still indicates considerable timing issues on when a trough will move over area currently keeping the trough off the coast next Sunday. The deterministic European and GFS models are in good agreement indicating the potential for a decent late season storm moving into the region next Sunday. Uncertainty continues that far out.

AVIATION.

VFR conditions for next 24 hours. Surface wind gusts under 12 kts.

STO WATCHES/WARNINGS/ADVISORIES. None.


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MZXC1 - 9415102 - Martinez-Amorco CA 1 mi53 min W 6 G 6 71°F 61°F1019.2 hPa
UPBC1 2 mi53 min W 1.9 G 5.1
CQUC1 5 mi64 min 60°F
PCOC1 - 9415144 - Port Chicago, CA 6 mi53 min W 5.1 G 6 77°F 61°F1018.8 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 6 mi53 min W 1.9 G 4.1 70°F 1019.1 hPa
SFXC1 - San Francisco Bay Reserve, CA 13 mi62 min SW 7 84°F 1019 hPa38°F
PPXC1 - 9414847 - Richmond (Point Potrero), CA 14 mi53 min SSW 7 G 11 59°F 1020.2 hPa
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 14 mi53 min WNW 5.1 G 7 78°F 1018.7 hPa
RCMC1 - 9414863 - Richmond, CA 16 mi53 min SSE 6 G 6 62°F 59°F1019.7 hPa
TIBC1 - Tiburon Pier, San Francisco Bay, CA 18 mi66 min Calm 66°F 1020 hPa
LNDC1 18 mi53 min WSW 4.1 G 5.1 68°F 1019.6 hPa
OKXC1 - 9414776 - Oakland (Berth 34), CA 18 mi53 min NW 11 G 12 58°F 1019.8 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 18 mi53 min NNW 6 G 7
OBXC1 19 mi53 min 61°F 55°F
AAMC1 - 9414750 - Alameda, CA 20 mi53 min WSW 4.1 G 5.1 63°F 61°F1020 hPa
PXSC1 20 mi53 min 63°F 55°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 21 mi53 min ESE 1.9 G 2.9 62°F 1018.9 hPa
FTPC1 - 9414290 - San Francisco, CA 23 mi53 min WSW 16 G 22 51°F 58°F1020.3 hPa
46237 - San Francisco Bar, CA (142) 31 mi47 min 55°F4 ft
RTYC1 - 9414523 - Redwood City, CA 36 mi53 min N 4.1 G 6 71°F 1020.3 hPa
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 41 mi27 min NW 16 G 19 50°F1021.6 hPa
PRYC1 - 9415020 - Point Reyes, CA 44 mi53 min 47°F1021.6 hPa

Wind History for Martinez-Amorco Pier, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Concord, Buchanan Field, CA6 mi54 minN 910.00 miFair85°F25°F11%1017.5 hPa
Napa, Napa County Airport, CA14 mi53 minS 810.00 miFair79°F46°F31%1018.1 hPa
Fairfield / Travis Air Force Base, CA21 mi49 minN 410.00 miFair87°F22°F9%1019.3 hPa
Oakland, Metro Oakland International Airport, CA23 mi54 minW 610.00 miFair71°F45°F39%1019.6 hPa
Novato / Gnoss Field, CA23 mi52 minVar 5 G 1110.00 miFair86°F30°F13%1018.6 hPa

Link to 5 minute data for KCCR

Wind History from CCR (wind in knots)
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Last 24hrNW11NW11
G18
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G23
W12CalmSW4N5N3CalmCalmCalmCalmCalmCalmCalmS3S3CalmCalm3N9
1 day agoNW14
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S6S10S12S13S13S12S12S10S8S8SW4S6S633NW8NW10
2 days agoNW16W8SW11NW10W7W7SW6S6W4W9S3SW6S4CalmSW5S3--SW4S3SW45N6N8NW11

Tide / Current Tables for Benicia, Carquinez Strait, California
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Benicia
Click for Map
Sun -- 01:17 AM PDT     Moonset
Sun -- 05:19 AM PDT     4.98 feet High Tide
Sun -- 06:28 AM PDT     Sunrise
Sun -- 10:42 AM PDT     Moonrise
Sun -- 01:27 PM PDT     0.27 feet Low Tide
Sun -- 07:47 PM PDT     Sunset
Sun -- 09:00 PM PDT     3.65 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.72.93.344.654.94.33.62.61.710.50.30.30.61.11.82.53.13.53.73.53.2

Tide / Current Tables for Carquinez Strait, California Current
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Carquinez Strait
Click for Map
Sun -- 01:17 AM PDT     Moonset
Sun -- 01:53 AM PDT     0.00 knots Slack
Sun -- 04:42 AM PDT     1.70 knots Max Flood
Sun -- 06:28 AM PDT     Sunrise
Sun -- 07:22 AM PDT     -0.00 knots Slack
Sun -- 10:42 AM PDT     Moonrise
Sun -- 11:06 AM PDT     -2.82 knots Max Ebb
Sun -- 03:47 PM PDT     0.00 knots Slack
Sun -- 07:32 PM PDT     1.66 knots Max Flood
Sun -- 07:48 PM PDT     Sunset
Sun -- 10:58 PM PDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.6-0.50.10.91.51.71.20.4-0.6-1.7-2.5-2.8-2.7-2.2-1.6-0.70.211.41.61.61.30.7-0

Weather Map
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GEOS Local Image of CentralWestCoast    EDIT
NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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