Thursday, April2, 2020
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Marine Weather and Tides
Bay Point, 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.

Sunrise 6:48AMSunset 7:33PM Thursday April 2, 2020 12:15 PM PDT (19:15 UTC) Moonrise 12:23PMMoonset 2:31AM Illumination 73% Phase: Waxing Gibbous; Moon at 10 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- 854 Am Pdt Thu Apr 2 2020
.small craft advisory in effect from 3 pm pdt this afternoon through this evening...
Today..NW winds 5 to 15 kt increasing to 15 to 25 kt this afternoon.
Tonight..W winds 10 to 20 kt with gusts up to 25 kt.
Fri..W winds 5 to 10 kt.
Fri night..W winds 10 to 20 kt with gusts up to 25 kt.
Sat..SW winds 10 to 20 kt with gusts up to 25 kt. Rain likely.
Sat night..SW winds 10 to 20 kt with gusts up to 25 kt. Rain likely.
Sun..SW winds 5 to 15 kt. Rain.
Mon..SW winds up to 10 kt. Rain likely.
PZZ500 854 Am Pdt Thu Apr 2 2020
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Moderate northwesterly winds expected across the coastal waters today. Occasional gale force gusts are possible through tonight and into Friday. These winds will produce fresh and steep wind- generated waves, creating hazardous conditions for smaller vessels. Winds will begin to subside late Friday and into the weekend. A moderate, predominately winds driven, northwesterly swell will prevail through Friday then gradually subside over the weekend.


7 Day Forecast for Marine Location Near Bay Point, CA
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location: 38.04, -121.94     debug


Area Discussion for - Sacramento, CA
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FXUS66 KSTO 021030 AFDSTO

Area Forecast Discussion National Weather Service Sacramento CA 330 AM PDT Thu Apr 2 2020

Synopsis. Dry and mild weather expected this week. Breezy north winds expected today. A pair of storms move in over the weekend into early next week bringing rain, gusty winds, heavy mountain snow, and travel problems.

Discussion. The area remains between eastern Pacific ridging and a departing trough. A fairly tight north to south pressure gradient (7 mb between Medford and Sacramento) will bring breezy northerly winds today, with gusts between 20 and 30 mph.

Temperatures today and Friday will rise back to around normal levels. For the Valley, highs will be in the mid to upper 60s.

A cool shortwave from the Gulf of Alaska approaches the Northern California coast Friday night with clouds spreading across the area. Confidence on precipitation timining has improved, moving into the northern Coastal Range around midnight, then spreading southward to I-80 by late Saturday morning. Ensembles and deterministic models agree by afternoon that precipitation will be widespread across the area. Snow levels are expected to be around 3500 feet over Shasta County, 4000-5000 feet elsewhere, with accumulating snow bringing likely travel problems by afternoon.

A colder, stronger system approaches Saturday night and spreads inland Sunday. Heavier mountain snow showers are expected by Sunday afternoon, with up to around an inch an hour accumulating. This will likely make mountain travel difficult and dangerous at times. Afternoon thundertorms are possible in the Valley, especially on the west side.

Late Sunday night, snow levels could lower into the upper foothills (3000 feet), bringing some possible accumulations down to that level.

Latest guidance has a storm total of 1 to 2 feet of snow from Saturday morning through Monday morning in the mountains above 5000 feet. For the Valley and foothills, rainfall totals of 0.75 to 2 inches are possible. EK/KR

EXTENDED DISCUSSION (Monday THROUGH Thursday).

Deterministic models have come into better agreement with handling of closed upper low along the CA coast early next week. However, differences in its meandering exist, typical for closed lows, and how quickly it progresses. This results in differences in how far north the precipitation chances extend Tuesday through Thursday. For now, forecast follows NBM guidance which keeps the forecast unsettled with the best chances for precipitation over the mountains.

AVIATION.

VFR conds ovr intr NorCal nxt 24 hrs. In Cntrl Vly, lcl Nly sfc wnd gsts to 25 kts poss btwn 17z-22z tda. Lcl SW-NW sfc wnd gsts up to 35 kts poss ovr hyr mtn trrn tda til 03z Fri.

STO WATCHES/WARNINGS/ADVISORIES. None.


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 3 mi274 min NNW 9.9 G 15 53°F 1018.7 hPa
PCOC1 - 9415144 - Port Chicago, CA 5 mi268 min S 5.1 G 8 45°F 58°F1018.9 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 10 mi268 min Calm G 1.9 48°F 57°F1019.3 hPa
UPBC1 10 mi268 min WNW 1.9 G 2.9
SFXC1 - San Francisco Bay Reserve, CA 12 mi331 min SSE 2.9
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 17 mi268 min W 2.9 G 5.1 50°F 1019.1 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 24 mi268 min NNW 1 G 2.9 51°F 1019.6 hPa
LNDC1 25 mi268 min N 5.1 G 8.9 50°F 1019 hPa
OKXC1 - 9414776 - Oakland (Berth 34), CA 26 mi268 min N 8.9 G 11 50°F 1019.2 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 26 mi274 min N 8.9 G 9.9
RCMC1 - 9414863 - Richmond, CA 26 mi268 min NNW 6 G 6 50°F 56°F1019 hPa
OBXC1 27 mi268 min 50°F 40°F
AAMC1 - 9414750 - Alameda, CA 27 mi268 min N 6 G 8 50°F 59°F1019.1 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 29 mi268 min W 2.9 G 5.1 51°F 1018.2 hPa
PXSC1 29 mi268 min 52°F 41°F
TIBC1 - Tiburon Pier, San Francisco Bay, CA 29 mi258 min N 1.9 52°F 1019 hPa
FTPC1 - 9414290 - San Francisco, CA 32 mi268 min 59°F
RTYC1 - 9414523 - Redwood City, CA 40 mi268 min S 1 G 1 48°F 60°F1019.5 hPa
46237 - San Francisco Bar, CA (142) 41 mi256 min 53°F5 ft

Wind History for Port Chicago, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Concord, Buchanan Field, CA7 mi23 minNW 410.00 miFair62°F28°F29%1017.8 hPa
Fairfield / Travis Air Force Base, CA17 mi78 minN 14 G 1910.00 miFair62°F24°F24%1020 hPa
Napa, Napa County Airport, CA22 mi22 minNNW 10 G 1510.00 miFair63°F26°F25%1018.2 hPa
Vacaville Nut Tree Airport, CA23 mi23 minNNW 11 G 1910.00 miFair64°F24°F22%1019.3 hPa
Livermore, Livermore Municipal Airport, CA24 mi23 minVar 510.00 miFair60°F30°F32%1018.7 hPa

Link to 5 minute data for KCCR

Wind History from CCR (wind in knots)
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NW93NW6W8W9W9W5--W5SW4SW4SE3SE3SE4CalmS3CalmS3CalmCalm6NW4
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W11W9W10W11SW7W12W6S5S5SW7W8W5SW8SW4SW6SW6S5SW4W6NW7W6NW6
2 days agoCalmSW4--W11W10SW10W8SW7SW4SW6CalmS6S3CalmS4S6Calm3S4SW5S7S6SW6NW9

Tide / Current Tables for Mallard Island Ferry Wharf, Suisun Bay, California
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Mallard Island Ferry Wharf
Click for Map
Thu -- 03:30 AM PDT     Moonset
Thu -- 04:28 AM PDT     1.84 feet Low Tide
Thu -- 06:50 AM PDT     Sunrise
Thu -- 09:47 AM PDT     3.71 feet High Tide
Thu -- 01:22 PM PDT     Moonrise
Thu -- 06:10 PM PDT     0.07 feet Low Tide
Thu -- 07:32 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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32.82.42.11.91.92.12.63.23.63.73.53.12.51.81.10.60.30.10.20.61.322.7

Tide / Current Tables for Stake Point .9 Mi NNW, Suisun Bay, California Current
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Stake Point .9 Mi NNW
Click for Map
Thu -- 01:13 AM PDT     -0.00 knots Slack
Thu -- 03:18 AM PDT     -0.29 knots Max Ebb
Thu -- 03:31 AM PDT     Moonset
Thu -- 05:15 AM PDT     0.00 knots Slack
Thu -- 06:50 AM PDT     Sunrise
Thu -- 08:35 AM PDT     0.70 knots Max Flood
Thu -- 11:17 AM PDT     -0.00 knots Slack
Thu -- 01:22 PM PDT     Moonrise
Thu -- 02:42 PM PDT     -0.84 knots Max Ebb
Thu -- 06:48 PM PDT     0.00 knots Slack
Thu -- 07:32 PM PDT     Sunset
Thu -- 11:06 PM PDT     0.77 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.40.1-0.2-0.3-0.3-0.10.20.50.70.70.50.1-0.3-0.6-0.8-0.8-0.8-0.6-0.30.10.40.60.70.8

Weather Map
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wmap_P
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
Wind Forecast for Sacramento, CA (15,3,4,5)
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Ground Weather Radar Station Sacramento, CA
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weather_mapweather_map weather_map

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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerous of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.