Tuesday, April24, 2018 L-36.com


Marine Weather and Tides
San Leandro, CA

Version 3.4
What's New / NOTES
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.
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.

Sunrise 6:18AMSunset 7:54PM Tuesday April 24, 2018 5:30 PM PDT (00:30 UTC) Moonrise 1:30PMMoonset 2:32AM Illumination 72% 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- 215 Pm Pdt Tue Apr 24 2018
Tonight..W winds 10 to 20 kt with gusts up to 25 kt... Becoming sw 5 to 15 kt after midnight.
Wed..SW winds 10 to 20 kt with gusts up to 25 kt.
Wed night..SW winds 10 to 20 kt with gusts up to 25 kt.
Thu..SW winds 10 to 20 kt with gusts up to 25 kt.
Thu night..W winds 10 to 20 kt with gusts up to 25 kt.
Fri..SW winds 5 to 15 kt.
Fri night..SW winds 5 to 15 kt.
Sat..W winds 5 to 15 kt.
Sun..W winds 5 to 15 kt.
PZZ500 215 Pm Pdt Tue Apr 24 2018
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Generally light onshore winds will persist through the week, with locally breezy to gusty winds near coastal gaps or prominent points such as the golden gate bridge and point sur. Light to moderate seas will prevail through the forecast period with a mixed southerly and northwesterly swell developing late this week.

7 Day Forecast for Marine Location Near San Leandro, CA
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location: 37.68, -122.17     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 242331
afdmtr
area forecast discussion
national weather service san francisco bay area
431 pm pdt Tue apr 24 2018

Synopsis A cooling trend is forecast to persist through late
week and into the upcoming weekend as an upper level trough
approaches from the pacific. This system may produce a few showers
over the north bay late Friday into Saturday as it pushes inland
north of our region, yet widespread rainfall is unlikely.

Discussion As of 01:48 pm pdt Tuesday... The mid upper level
ridge axis continues to shift further inland away from the west
coast today in advance of a broad trough well offshore. This has
allowed for cooling region-wide today (currently 16 deg f cooler
at santa rosa compared to 24 hours ago) with a marine layer
between 1,200-1,500 feet in depth. With this, onshore flow persist
along with coastal stratus.

The upper level trough and an associated low pressure system will
slowly approach the california coast through late week. As a result,
look for continued cooling, even inland, with coastal stratus
penetrating inland each night before retreating back to the coast
during the mid late morning hours. Daytime temperatures will
generally range from the upper 50s to middle 60s at the coast to
middle upper 70s inland through Thursday.

The center of the upper level low is then forecast to push into
northern california Friday into Saturday and bring a slight chance
of rain showers to the far northern portion of the north bay.

However, not expecting much in the way of widespread rainfall as the
core of this system stays well to our north. Elsewhere, temperatures
cool to below seasonal averages with ongoing dry weather conditions
likely into the upcoming weekend.

Aviation As of 04:31 pm pdt Tuesday... For 00z tafs. Currently
vfr with stratus along the central coast and passing high clouds.

Expecting stratus to intrude once again tonight into tomorrow
morning bringing ifr MVFR CIGS to all terminals. Gusty onshore
winds will continue into this evening before winds subside and low
clouds move in.

Vicinity of ksfo...VFR with breezy onshore winds through this
evening. MVFR CIGS to return at around 10z.

Sfo bridge approach... Similar to ksfo.

Monterey bay terminals...VFR through early this evening with
onshore winds around 10-15 kt. Stratus and fog to return this
evening with ifr conditions expected at around 03z.

Marine As of 02:15 pm pdt Tuesday... Generally light onshore
winds will persist through the week, with locally breezy to gusty
winds near coastal gaps or prominent points such as the golden
gate bridge and point sur. Light to moderate seas will prevail
through the forecast period with a mixed southerly and
northwesterly swell developing late this week.

Mtr watches warnings advisories
Tngt None.

Public forecast: rgass
aviation: as
marine: sims
visit us at

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
AAMC1 - 9414750 - Alameda, CA 9 mi42 min W 8 G 9.9 59°F 65°F1016.2 hPa
LNDC1 10 mi42 min W 6 G 8.9 59°F 1016 hPa
OBXC1 12 mi42 min 57°F 50°F
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 12 mi42 min W 8 G 11
RTYC1 - 9414523 - Redwood City, CA 12 mi42 min N 15 G 17 60°F 68°F1016 hPa
OKXC1 - 9414776 - Oakland (Berth 34), CA 13 mi42 min W 8 G 9.9 57°F 1016.1 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 14 mi42 min W 8 G 12 57°F 1015.1 hPa
PXSC1 15 mi42 min 59°F 49°F
FTPC1 - 9414290 - San Francisco, CA 18 mi42 min WSW 9.9 G 19 55°F 58°F1016.3 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 19 mi42 min SW 12 G 14 57°F 1016 hPa
TIBC1 - Tiburon Pier, San Francisco Bay, CA 21 mi43 min W 8.9 58°F 1016 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 25 mi42 min WNW 12 G 12 65°F 63°F1014.7 hPa58°F
46237 - San Francisco Bar, CA (142) 26 mi60 min 57°F5 ft
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 26 mi42 min WSW 6 G 8 64°F 1014.8 hPa
PCOC1 - 9415144 - Port Chicago, CA 27 mi42 min W 15 G 17 66°F 63°F1014.3 hPa
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 29 mi42 min NW 13 G 16 69°F 1013.8 hPa
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 36 mi40 min WSW 5.8 G 7.8 53°F 56°F5 ft1017 hPa (-0.9)
SFXC1 - San Francisco Bay Reserve, CA 37 mi105 min WNW 11 73°F 1014 hPa55°F
46012 - HALF MOON BAY - 24NM South Southwest of San Francisco, CA 44 mi40 min WSW 5.8 G 7.8 54°F 57°F5 ft1016.6 hPa (-0.8)
PRYC1 - 9415020 - Point Reyes, CA 48 mi42 min S 1.9 G 6 56°F1016.6 hPa

Wind History for Alameda, 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, CA3 mi37 minWNW 1510.00 miPartly Cloudy61°F48°F65%1016 hPa
Hayward, Hayward Air Terminal, CA3 mi36 minWNW 1310.00 miFair63°F46°F56%1016.6 hPa
San Francisco, San Francisco International Airport, CA11 mi34 minW 1810.00 miPartly Cloudy and Breezy63°F46°F56%1015.6 hPa
San Carlos Airport, CA11 mi40 minW 810.00 miPartly Cloudy66°F50°F56%1015.6 hPa
Palo Alto Airport, CA14 mi43 minNW 1010.00 miA Few Clouds0°F0°F%1015.2 hPa
Mountain View, Moffett Field, CA18 mi34 minNNW 1110.00 miFair66°F54°F65%1015.8 hPa
Livermore, Livermore Municipal Airport, CA19 mi37 minWNW 910.00 miFair75°F52°F45%1014 hPa
Half Moon Bay Airport, CA21 mi35 minSW 65.00 miA Few Clouds with Haze55°F48°F77%1017.3 hPa
Concord, Buchanan Field, CA22 mi37 minW 810.00 miFair76°F48°F39%1013.1 hPa

Wind History from OAK (wind in knots)
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Last 24hrW14NW13NW10NW13NW12NW10NW10NW7N4NW4NW6N3CalmW536W5NW8NW7W12W12W13W12W15
1 day agoNW7W12NW8W9NW8NW7NW4NW3CalmCalmCalmCalmCalmNW3NW5CalmW5W7W5W6NW14W15W14W16
2 days agoW11NW10W9W10W8W8NW6CalmNW3NW8CalmNW4NE5NW4NW3W44W7W5W6NW9W8W11NW11

Tide / Current Tables for Roberts Landing, 1.3 miles west of, San Francisco Bay, California
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Roberts Landing
Click for Map
Tue -- 03:08 AM PDT     2.37 feet Low Tide
Tue -- 03:31 AM PDT     Moonset
Tue -- 06:21 AM PDT     Sunrise
Tue -- 08:17 AM PDT     6.40 feet High Tide
Tue -- 02:29 PM PDT     Moonrise
Tue -- 03:27 PM PDT     -0.07 feet Low Tide
Tue -- 07:52 PM PDT     Sunset
Tue -- 10:05 PM PDT     6.64 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.53.52.72.42.63.54.75.76.46.35.64.431.60.5-000.823.44.96.16.66.4

Tide / Current Tables for Mulford Gardens Channel #2 SSW, South San Francisco Bay, California Current
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Mulford Gardens Channel #2 SSW
Click for Map
Tue -- 02:28 AM PDT     0.00 knots Slack
Tue -- 03:32 AM PDT     Moonset
Tue -- 05:30 AM PDT     0.66 knots Max Flood
Tue -- 06:21 AM PDT     Sunrise
Tue -- 08:09 AM PDT     -0.01 knots Slack
Tue -- 11:25 AM PDT     -0.77 knots Max Ebb
Tue -- 02:30 PM PDT     Moonrise
Tue -- 02:54 PM PDT     0.00 knots Slack
Tue -- 06:28 PM PDT     1.09 knots Max Flood
Tue -- 07:52 PM PDT     Sunset
Tue -- 09:31 PM PDT     -0.01 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.4-0.3-0.10.20.50.60.60.50.1-0.3-0.6-0.8-0.7-0.6-0.400.50.91.11.10.80.3-0.2-0.4

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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for San Francisco/Monterey Bay Area, CA (20,4,5,8)
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Ground Weather Radar Station San Francisco Bay Area, 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.