Saturday, April4, 2020
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Marine Weather and Tides
Pinole, 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 6:47AMSunset 7:36PM Saturday April 4, 2020 4:55 PM PDT (23:55 UTC) Moonrise 2:44PMMoonset 4:04AM Illumination 90% Phase: Waxing Gibbous; Moon at 12 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- 236 Pm Pdt Sat Apr 4 2020
.small craft advisory in effect from Sunday morning through Sunday afternoon...
Tonight..S winds 5 to 15 kt. A chance of showers this evening, then showers after midnight.
Sun..SW winds 15 to 25 kt with gusts up to 30 kt. Showers.
Sun night..W winds up to 10 kt. A chance of showers.
Mon..S winds up to 10 kt. A chance of showers.
Mon night..NW winds 5 to 10 kt.
Tue..SW winds 5 to 15 kt.
Tue night..W winds 5 to 10 kt.
Wed..SW winds 5 to 10 kt.
Thu..SW winds up to 10 kt.
PZZ500 236 Pm Pdt Sat Apr 4 2020
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Southwesterly winds will prevail through tonight as a storm system moves across the coastal waters. This storm will bring wet weather to the region through early next week. High pressure will return by the middle of next week bringing a return of drier weather. A prevailing moderate northwesterly swell will persist through much of the forecast period.


7 Day Forecast for Marine Location Near Pinole, CA
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location: 38.04, -122.34     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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FXUS66 KMTR 042045 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 145 PM PDT Sat Apr 4 2020

SYNOPSIS. Light to locally moderate showers will continue this afternoon and tonight as a cold front moves through the region. Showers overnight become a steady rain tomorrow as another system drops down the coast. Locally heavy rain, possible thunderstorms and gusty winds during the day tomorrow. Precipitation becomes showers tomorrow night into Monday as the upper low passes over the region. Showers may linger for the Central Coast Tuesday and Wednesday as the upper low slowly exits the region followed by a warming and drying trend for the second half of next week.

DISCUSSION. as of 01:45 PM PDT Saturday . Radar shows showers continue across the region this afternoon as a cold front moves through. Rainfall amounts have varied with as little as a few hundredths in some locations to over a quarter of an inch near Santa Rosa and along the coastal areas of the North Bay. Showers will continue the rest of the afternoon and this evening before turning into a more steady rainfall tomorrow as another cold front gets ready to pass through the area. The front is expected to reach the North Bay tomorrow morning before moving south of the Bay Area and into the Monterey Region in the late afternoon.

Tomorrow's system will be better organized with more upper level support creating some locally heavier rainfall along with periods of gusty winds and possible thunderstorms. Latest QPF guidance keeps the bulk of the heavier precipitation focused from the Santa Cruz mountains southward to the Santa Lucia's and Big Sur coast while reducing rainfall totals somewhat for areas elsewhere. Generally expect around 0.50"-0.75" for lower elevations and the Bay Area with 0.75"-1.25" around the Monterey Bay and 2-3 inches in the hills of the Central Coast. Locally higher rainfall totals will be possible for some of the Big Sur mountains. There will be a slight chance of thunderstorms across the region tomorrow afternoon through Monday afternoon, though the best chances will be outside of our area as the core of the upper low is still expected to remain offshore. Additionally, expect occasionally gusty winds as the front moves through tomorrow, particularly along the Big Sur Coast south of the Monterey Peninsula. Therefore the Wind Advisory for the southern Monterey Bay, Monterey Peninsula, Carmel Highlands, and Big Sur Coast will remain in effect for tomorrow morning into the early evening.

Showers will persist into tomorrow evening as the main surface boundary moves through, with the best rainfall chances at that point south of the Bay Area. Precipitation chances will remain in the forecast for Monday as the upper low slowly makes its way southward across the region. Activity will likely be more scattered with the higher elevations of the Central Coast and southward most likely to see thunderstorms on Monday. Little has changed with regard to snow levels. Sunday, when the bulk of the rain is expected, will see snow levels above 4500 feet before lowering to around 3000/3500 feet on Monday when precipitation is more scattered. Higher peaks may see a dusting though.

The upper low will then slowly make its way southward through mid-week. There are some timing differences between the GFS and the ECMWF at this point. The GFS moves the system into soCal more quickly and ends shower chances for the Central Coast by Tuesday afternoon while the ECMWF lags behind enough to keep showers lingering into Wednesday. Once the upper low does finally exit, high pressure will build back in late next week leading to warming and drying. Many interior locations may be in the low 70s towards the end of the week.

AVIATION. as of 10:55 AM PDT Saturday . For 18Z TAFs. A storm system will continue moving across the region today bringing periods of light to moderate rainfall and wet runways to area terminals. MVFR to localized IFR cigs expected as the frontal boundary moves through. Winds have already turn southerly over the Bay Area and will strengthen this afternoon becoming gusty at select terminals. Rainy conditions will persist tonight and Sunday as the parent low approaches from the northwest. Strong and gusty winds will ramp up on Sunday morning as a stronger boundary moves through the region.

Vicinity of KSFO . MVFR cigs will prevail through much of the forecast period with periods of light to moderate rainfall. Southerly winds will strengthen after midnight tonight with sustained winds increasing to 20 to 25 kt and gust to 30 to 35 kt possible by Sunday morning. We will watch this closely as gusts may reach the Airport Weather Warning criteria of 34 knots.

SFO Bridge Approach . Similar to KSFO.

Monterey Bay Terminals . MVFR cigs will prevail through much of the forecast period with periods of light to moderate rainfall. West to southwesterly winds will strengthen this afternoon with sustained wind around 10 to 15 kt and gusts to 18 kt possible. Stronger south to southwesterly winds expected Sunday morning with sustained winds increasing to 15 to 23 kt and gust to 25 to 35 kt possible.

MARINE. as of 9:03 AM PDT Saturday . Winds will shift to the southwest today as a storm system moves in over the coastal waters. This storm will bring wet weather to the region today and continue into early next week. High pressure will return by the middle of next week bringing a return of drier weather. A prevailing moderate northwesterly swell will persist through much of the forecast period.

MTR WATCHES/WARNINGS/ADVISORIES. Tngt. Wind Advisory . CAZ530



PUBLIC FORECAST: AS AVIATION: CW MARINE: CW

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 4 mi55 min SW 16 G 20 56°F 1008.5 hPa (-1.7)
RCMC1 - 9414863 - Richmond, CA 9 mi55 min S 8 G 15 55°F 57°F1009.1 hPa (-2.0)
PPXC1 - 9414847 - Richmond (Point Potrero), CA 9 mi55 min SSW 19 G 24 56°F 1009.5 hPa (-2.1)
MZXC1 - 9415102 - Martinez-Amorco CA 11 mi55 min SSW 8.9 G 14 57°F 59°F1008.9 hPa (-2.3)
UPBC1 12 mi55 min SSW 11 G 18
TIBC1 - Tiburon Pier, San Francisco Bay, CA 12 mi39 min NE 1.9 53°F 1009 hPa
OKXC1 - 9414776 - Oakland (Berth 34), CA 16 mi55 min SSW 13 G 18 55°F 1009.6 hPa (-1.9)
PCOC1 - 9415144 - Port Chicago, CA 16 mi55 min S 11 G 17 56°F 58°F1008.8 hPa (-1.9)
OBXC1 16 mi55 min 56°F 56°F
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 17 mi55 min S 14 G 18
LNDC1 17 mi55 min SSW 9.9 G 15 56°F 1009.7 hPa (-1.9)
PXOC1 - 9414311 - San Francisco (Pier 1), CA 17 mi55 min N 1.9 G 7 55°F 1008.6 hPa (-1.9)
PXSC1 17 mi55 min 56°F 56°F
FTPC1 - 9414290 - San Francisco, CA 17 mi55 min 59°F
AAMC1 - 9414750 - Alameda, CA 19 mi55 min S 9.9 G 13 55°F 59°F1009.9 hPa (-2.0)
SFXC1 - San Francisco Bay Reserve, CA 20 mi70 min SW 12
46237 - San Francisco Bar, CA (142) 24 mi55 min 55°F5 ft
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 24 mi55 min SW 11 G 16 59°F 1009.1 hPa (-1.9)
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 33 mi35 min SW 14 G 18 53°F 52°F1010 hPa
RTYC1 - 9414523 - Redwood City, CA 37 mi55 min S 8.9 G 15 57°F 60°F1010.4 hPa (-2.3)

Wind History for Richmond, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Napa, Napa County Airport, CA12 mi61 minSSW 21 G 269.00 miOvercast and Breezy56°F54°F93%1008 hPa
Novato / Gnoss Field, CA14 mi60 minWSW 11 G 162.50 miLight Rain55°F55°F100%1009.1 hPa
Concord, Buchanan Field, CA16 mi62 minS 12 G 194.00 miLight Rain Fog/Mist58°F54°F87%1008 hPa
Petaluma Municipal Airport, CA21 mi60 minW 1410.00 miOvercast57°F55°F94%1009.1 hPa
Oakland, Metro Oakland International Airport, CA24 mi62 minSSW 187.00 miOvercast and Breezy60°F53°F78%1010 hPa

Link to 5 minute data for KAPC

Wind History from APC (wind in knots)
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1 day ago----SW8SW5SW5CalmW3CalmCalmSW4W7CalmCalmCalmCalmCalmCalm33S6S7SW7SW14S12
2 days agoW9W10SW7S5SW5CalmCalmCalmN5CalmCalmCalmCalmCalmS3CalmCalmN11N9N10
G15
NW7SW10--W12

Tide / Current Tables for Pinole Point, San Pablo Bay, California
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Pinole Point
Click for Map
Sat -- 04:29 AM PDT     2.16 feet Low Tide
Sat -- 05:03 AM PDT     Moonset
Sat -- 06:49 AM PDT     Sunrise
Sat -- 10:10 AM PDT     5.76 feet High Tide
Sat -- 03:44 PM PDT     Moonrise
Sat -- 04:59 PM PDT     -0.37 feet Low Tide
Sat -- 07:35 PM PDT     Sunset
Sat -- 11:51 PM PDT     5.35 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.84.33.42.72.22.22.73.64.55.35.75.64.83.62.10.8-0.1-0.4-00.81.93.14.35.1

Tide / Current Tables for Wilson Point 3.9 mi NNW, San Pablo Bay, California Current
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Wilson Point 3.9 mi NNW
Click for Map
Sat -- 12:01 AM PDT     -0.00 knots Slack
Sat -- 02:45 AM PDT     -0.33 knots Max Ebb
Sat -- 04:43 AM PDT     0.00 knots Slack
Sat -- 05:03 AM PDT     Moonset
Sat -- 06:48 AM PDT     Sunrise
Sat -- 06:59 AM PDT     0.62 knots Max Flood
Sat -- 10:57 AM PDT     -0.00 knots Slack
Sat -- 02:25 PM PDT     -0.59 knots Max Ebb
Sat -- 03:44 PM PDT     Moonrise
Sat -- 05:40 PM PDT     0.00 knots Slack
Sat -- 07:35 PM PDT     Sunset
Sat -- 08:23 PM PDT     0.67 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0-0.2-0.3-0.3-0.20.10.50.60.60.40.2-0-0.3-0.5-0.6-0.6-0.4-0.20.20.50.70.70.60.4

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.
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Wind Forecast for San Francisco/Monterey Bay Area, CA (19,4,5,8)
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Ground Weather Radar Station Sacramento, CA
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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.