Saturday, April21, 2018 L-36.com


Marine Weather and Tides
Santa Clara, 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 6:21AMSunset 7:50PM Saturday April 21, 2018 12:28 AM PDT (07:28 UTC) Moonrise 10:14AMMoonset 12:00AM Illumination 34% Phase: Waxing Crescent; Moon at 6 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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PZZ560 Pigeon Point To Point Pinos To 10 Nm- 925 Pm Pdt Fri Apr 20 2018
.small craft advisory in effect through late Saturday night...
Tonight..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. NW swell 3 to 5 ft at 15 seconds.
Sat..NW winds 5 to 15 kt...increasing to 15 to 25 kt in the afternoon. Wind waves 3 to 5 ft. NW swell 4 to 5 ft at 15 seconds.
Sat night..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. NW swell 4 to 5 ft at 15 seconds.
Sun..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 7 to 9 ft at 15 seconds.
Sun night..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. NW swell 6 to 8 ft at 14 seconds.
Mon..NW winds 10 kt. Wind waves 2 ft or less. NW swell 6 to 8 ft.
Tue..NW winds 10 kt. Wind waves 2 ft or less. W swell 4 to 6 ft.
Wed..S winds 10 kt. Wind waves 2 ft or less. W swell 5 to 7 ft.
PZZ500 925 Pm Pdt Fri Apr 20 2018
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Gusty northwest winds will prevail through the weekend over the coastal waters as high pressure remains over the eastern pacific. Steep wind waves and fresh swell will result in hazardous seas likely through the weekend and into early next week.

7 Day Forecast for Marine Location Near Santa Clara, CA
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location: 37.38, -121.9     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 210527
afdmtr
area forecast discussion
national weather service san francisco bay area
1027 pm pdt Fri apr 20 2018

Synopsis A warming trend and dry weather are forecast through
the upcoming weekend. A weak low pressure system may impact the
region with increased clouds and showers late next week.

Discussion As of 9:00 pm pdt Friday... An upper level ridge
moving over the area brought 5 to 10 degrees of warming over
yesterday. The exception was along the coast south where onshore
flow and patchy low clouds kept temperatures cooler.

Surface high over the eastern pacific will build into the pacific
northwest coast tonight and Saturday bringing a dry light
northerly flow over the area. This will result in a few degrees
of warming in all areas Saturday. High temperatures will
generally be in the mid 60s to low 70s coast and upper 70s to
upper 80s inland.

The ridge will weaken as an upper level trough passes to the
north of the district. This will put a halt to the warming into
early next week.

Medium range models show a cutoff low forming off the california
coast the middle of next week bringing cooler weather and possibly
a few showers.

Aviation As of 10:27 pm pdt Friday...VFR, with mainly clear skies,
will prevail through the overnight with exception of MVFR ifr along
the immediate coastline.

Vicinity of ksfo...VFR. Winds are forecast to diminish after sunset.

Sfo bridge approach... Similar to ksfo.

Monterey bay terminals... Low clouds developing again tonight, but
confidence low regarding timing and coverage. Light onshore winds
overnight.

Marine As of 10:23 pm pdt Friday... Gusty northwest winds will
prevail through the weekend over the coastal waters as high pressure
remains over the eastern pacific. Steep wind waves and fresh swell
will result in hazardous seas likely through the weekend and into
early next week.

Mtr watches warnings advisories
Tngt Sca... Pt reyes to pigeon pt 0-10 nm
sca... Pigeon pt to pt pinos 0-10 nm
sca... Pt pinos to pt piedras blancas 0-10 nm
sca... Pt arena to pt reyes 0-10 nm
sca... Pt arena to pigeon pt 10-60 nm
sca... Pigeon pt to pt piedras blancas 10-60 nm
public forecast: W pi
aviation: canepa
marine: bam
visit us at

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RTYC1 - 9414523 - Redwood City, CA 19 mi40 min W 4.1 G 8.9 63°F1022.5 hPa
AAMC1 - 9414750 - Alameda, CA 34 mi46 min SW 7 G 11 62°F1022 hPa
LNDC1 35 mi40 min SSW 7 G 8 1021.7 hPa
OBXC1 37 mi58 min 54°F 50°F
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 37 mi40 min S 7 G 9.9
OKXC1 - 9414776 - Oakland (Berth 34), CA 38 mi40 min S 8.9 G 12 1021.7 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 39 mi40 min ESE 2.9 G 5.1 1020.5 hPa
PXSC1 39 mi58 min 55°F 49°F
ELXC1 - Elkhorn Slough Reserve, CA 40 mi103 min SE 5.1 51°F 1022 hPa50°F
FTPC1 - 9414290 - San Francisco, CA 42 mi46 min WSW 1.9 G 2.9 55°F1021.7 hPa
46092 - MBM1 44 mi83 min NNW 9.7 53°F 52°F1022.4 hPa (+1.3)
PPXC1 - 9414847 - Richmond (Point Potrero), CA 44 mi40 min SE 9.9 G 12 1021.8 hPa
RCMC1 - 9414863 - Richmond, CA 46 mi46 min SSE 8.9 G 11 58°F1021.2 hPa
TIBC1 - Tiburon Pier, San Francisco Bay, CA 46 mi47 min SSE 6 53°F 1021 hPa
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 46 mi40 min WNW 11 G 14 1019.8 hPa
PCOC1 - 9415144 - Port Chicago, CA 47 mi40 min SSW 8 G 12 60°F1020.5 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 47 mi40 min WSW 4.1 G 5.1 59°F1020.8 hPa
46237 - San Francisco Bar, CA (142) 48 mi58 min 53°F7 ft
46042 - MONTEREY - 27NM West of Monterey Bay, CA 49 mi38 min NNW 16 G 19 54°F 54°F7 ft1022.2 hPa (+0.8)

Wind History for Redwood City, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Jose, San Jose International Airport, CA2 mi35 minWNW 710.00 miFair53°F48°F83%1022.1 hPa
San Jose / Reid / Hillv, CA5 mi2.7 hrsN 010.00 miClear57°F50°F77%1021.7 hPa
Mountain View, Moffett Field, CA9 mi32 minENE 310.00 miFair53°F48°F83%1022.6 hPa
Palo Alto Airport, CA14 mi3.7 hrsNW 510.00 miClear0°F0°F%1021.3 hPa
San Carlos Airport, CA21 mi33 minWNW 310.00 miFair54°F44°F72%1022 hPa
Livermore, Livermore Municipal Airport, CA23 mi35 minNNW 310.00 miFair51°F48°F89%1021.4 hPa
Hayward, Hayward Air Terminal, CA23 mi34 minW 610.00 miFair54°F44°F69%1023 hPa

Wind History from SJC (wind in knots)
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Last 24hrCalmCalmSE3SE3S3S4SE6SE4CalmCalmNW3W7W10W10NW11NW12NW13NW14NW10W8NW8W3W5NW7
1 day agoW3W3SW3CalmS3CalmSE4CalmCalmCalm4NW4NW9NW13NW15NW14NW14NW15NW13NW10N5NW4CalmS3
2 days agoCalmCalmCalmCalmCalmSE4SW4S3CalmCalmNW75NW8NW8W14NW14NW103NW7NW12W8NW8N7N5

Tide / Current Tables for Gold Street Bridge, Alviso Slough, San Francisco Bay, California
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Gold Street Bridge
Click for Map
Sat -- 12:01 AM PDT     2.52 feet Low Tide
Sat -- 01:00 AM PDT     Moonset
Sat -- 04:50 AM PDT     9.35 feet High Tide
Sat -- 06:24 AM PDT     Sunrise
Sat -- 11:14 AM PDT     Moonrise
Sat -- 01:00 PM PDT     -0.56 feet Low Tide
Sat -- 07:20 PM PDT     7.46 feet High Tide
Sat -- 07:48 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.53.24.978.89.38.97.96.24.32.40.8-0.2-0.6-01.43.256.67.47.36.55.44.1

Tide / Current Tables for Dumbarton Point 2.3 mi NE, South San Francisco Bay, California Current
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Dumbarton Point 2.3 mi NE
Click for Map
Sat -- 01:00 AM PDT     Moonset
Sat -- 02:27 AM PDT     0.81 knots Max Flood
Sat -- 05:08 AM PDT     -0.00 knots Slack
Sat -- 06:25 AM PDT     Sunrise
Sat -- 10:09 AM PDT     -1.29 knots Max Ebb
Sat -- 11:14 AM PDT     Moonrise
Sat -- 12:58 PM PDT     0.01 knots Slack
Sat -- 03:48 PM PDT     1.28 knots Max Flood
Sat -- 07:27 PM PDT     -0.01 knots Slack
Sat -- 07:49 PM PDT     Sunset
Sat -- 10:59 PM PDT     -0.56 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.10.50.80.80.50.1-0.2-0.6-0.9-1.2-1.3-1.1-0.600.71.21.31.10.80.3-0.1-0.4-0.5-0.6

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 (3,6,7,8)
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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.