Sunday, May27, 2018 L-36.com


Marine Weather and Tides
Piedmont, CA

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.

Sunrise 5:48AMSunset 8:23PM Sunday May 27, 2018 6:18 PM PDT (01:18 UTC) Moonrise 5:40PMMoonset 3:59AM Illumination 97% Phase: Waxing Gibbous; Moon at 13 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 San Francisco Bay North Of The Bay Bridge- 241 Pm Pdt Sun May 27 2018
Tonight..SW winds 10 to 20 kt.
Memorial day..SW winds 10 kt...increasing to 10 to 20 kt in the afternoon.
Mon night..SW winds 10 to 20 kt.
Tue..SW winds 5 to 15 kt.
Tue night..SW winds 10 to 20 kt. Patchy fog after midnight.
Wed..SW winds 15 to 25 kt. Patchy fog.
Thu..SW winds 5 to 15 kt.
Fri..W winds 10 kt.
PZZ500 241 Pm Pdt Sun May 27 2018
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Moderate to strong northwest winds will continue through this evening and into the upcoming week, especially over the northern outer waters. Steep fresh swell will be generated by the moderate to locally strong winds. The pressure gradient is forecast to gradually tighten along the northern california coast starting Monday afternoon. This will increase nw winds to gale force or near gale force by Tuesday for the outer waters through at least Wednesday, before decreasing. Very rough and erratic seas can be expected with these winds.

7 Day Forecast for Marine Location Near Piedmont, CA
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location: 37.85, -122.22     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Please check Station number (mtr) in setup.


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LNDC1 5 mi49 min NW 1.9 G 7 69°F 1013.2 hPa
OBXC1 7 mi49 min 64°F 54°F
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 7 mi49 min WSW 1.9 G 5.1
OKXC1 - 9414776 - Oakland (Berth 34), CA 7 mi49 min NW 5.1 G 6 64°F 1013.4 hPa
AAMC1 - 9414750 - Alameda, CA 7 mi49 min W 6 G 8 64°F 63°F1013.4 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 9 mi49 min SSW 8 G 15 61°F 1013.3 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 10 mi49 min WSW 2.9 G 9.9 65°F 1012.2 hPa
PXSC1 10 mi49 min 65°F 53°F
RCMC1 - 9414863 - Richmond, CA 11 mi49 min SSE 8 G 9.9 63°F 59°F1012.7 hPa
FTPC1 - 9414290 - San Francisco, CA 13 mi49 min WSW 9.9 G 16 58°F 57°F1013.7 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 14 mi49 min WSW 9.9 G 12 71°F 1012 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 14 mi49 min W 12 G 13 77°F 64°F1012 hPa53°F
PCOC1 - 9415144 - Port Chicago, CA 17 mi49 min W 11 G 14 78°F 65°F1011.7 hPa
46237 - San Francisco Bar, CA (142) 22 mi49 min 56°F4 ft
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 22 mi55 min WNW 9.9 G 14 78°F 1011.4 hPa
RTYC1 - 9414523 - Redwood City, CA 24 mi49 min NNW 12 G 13 71°F 66°F1013.2 hPa
SFXC1 - San Francisco Bay Reserve, CA 26 mi94 min W 12 83°F 1012 hPa55°F
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 33 mi39 min WNW 9.7 G 14 55°F 55°F1014.7 hPa55°F
PRYC1 - 9415020 - Point Reyes, CA 41 mi49 min WNW 8.9 G 12 52°F1013.8 hPa
46012 - HALF MOON BAY - 24NM South Southwest of San Francisco, CA 49 mi89 min NW 9.7 G 12 55°F 55°F8 ft1014.6 hPa (-1.2)

Wind History for Oakland Middle Harbor, CA
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Oakland, Metro Oakland International Airport, CA10 mi26 minWNW 1110.00 miA Few Clouds67°F53°F61%1013.2 hPa
Concord, Buchanan Field, CA13 mi26 minW 1010.00 miFair85°F48°F29%1010.6 hPa
Hayward, Hayward Air Terminal, CA14 mi25 minWNW 1210.00 miFair73°F54°F51%1013.7 hPa
San Francisco, San Francisco International Airport, CA18 mi83 minWNW 1610.00 miA Few Clouds69°F52°F55%1013.2 hPa
San Carlos Airport, CA22 mi29 minW 1010.00 miClear77°F48°F36%1012.9 hPa
Livermore, Livermore Municipal Airport, CA24 mi26 minW 1310.00 miFair80°F55°F42%1011.9 hPa

Wind History from OAK (wind in knots)
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Last 24hrW11W9W10SW5CalmSW5SW10S7E4NE4NE4NE3CalmS3SW3SW6W4W9NW11W12W13NW10NW9W11
1 day agoW9W7W11W11W6W12W10W13W14W13W10W12W73W9W3SW5SW5SW5W9W9SW9W14W11
2 days agoW13W10W9W9W9W7SW8W10SW9SW9SW9SW8S9S10S8SW6S5SW10SW9SW9SW9SW11W12W11

Tide / Current Tables for Berkeley, San Francisco Bay, California
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Berkeley
Click for Map
Sun -- 04:59 AM PDT     Moonset
Sun -- 05:38 AM PDT     -0.32 feet Low Tide
Sun -- 05:50 AM PDT     Sunrise
Sun -- 12:05 PM PDT     4.56 feet High Tide
Sun -- 05:16 PM PDT     1.71 feet Low Tide
Sun -- 06:40 PM PDT     Moonrise
Sun -- 08:22 PM PDT     Sunset
Sun -- 11:26 PM PDT     6.15 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.74.73.21.70.5-0.2-0.30.21.12.23.34.24.64.33.72.82.11.71.92.53.54.55.56.1

Tide / Current Tables for Oakland Harbor WebStreeter Street, San Francisco Bay, California Current
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Oakland Harbor WebStreeter Street
Click for Map
Sun -- 01:52 AM PDT     -1.37 knots Max Ebb
Sun -- 04:59 AM PDT     Moonset
Sun -- 05:35 AM PDT     0.01 knots Slack
Sun -- 05:50 AM PDT     Sunrise
Sun -- 08:54 AM PDT     1.15 knots Max Flood
Sun -- 11:50 AM PDT     -0.01 knots Slack
Sun -- 02:19 PM PDT     -0.84 knots Max Ebb
Sun -- 05:31 PM PDT     0.01 knots Slack
Sun -- 06:40 PM PDT     Moonrise
Sun -- 08:22 PM PDT     Sunset
Sun -- 08:38 PM PDT     0.96 knots Max Flood
Sun -- 11:23 PM PDT     -0.01 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.8-1.3-1.4-1.2-0.9-0.40.20.81.11.110.5-0.1-0.6-0.8-0.8-0.6-0.30.20.70.90.90.70.3

Weather Map and Satellite Images
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wmap_P
GOES 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 San Francisco/Monterey Bay Area, CA (21,6,7,8)
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Ground Weather Radar Station Sacramento, CA
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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 numerious 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.