Sunday, December10, 2017 L-36.com


Marine Weather and Tides
Sunnyvale, CA

Version 3.4
What's New / NOTES
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.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 7:10AMSunset 4:51PM Sunday December 10, 2017 4:19 PM PST (00:19 UTC) Moonrise 12:00AMMoonset 12:51PM Illumination 50% Phase: Third Quarter Moon; Moon at 22 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- 225 Pm Pst Sun Dec 10 2017
Tonight..E winds 10 to 20 kt.
Mon..NE winds 5 to 15 kt.
Mon night..NE winds 10 kt.
Tue..NE winds 10 kt.
Tue night..W winds 10 kt.
Wed..Light winds...becoming nw 5 kt.
Thu..NE winds 5 kt.
Fri..W winds 5 kt.
PZZ500 225 Pm Pst Sun Dec 10 2017
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Locally breezy conditions will continue overnight along coastal gaps as high pressure remains parked over the west coast. A longer period west to northwest swell will arrive later tonight and will continue into Monday.

7 Day Forecast for Marine Location Near Sunnyvale, CA
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location: 37.42, -121.98     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 102339
afdmtr
area forecast discussion
national weather service san francisco bay area
339 pm pst Sun dec 10 2017

Synopsis High pressure will remain near the west coast through
most of the work week, resulting in continued dry conditions.

Daytime highs will be warmer than normal and nights will be
seasonably cool.

Discussion As of 2:00 pm pst Sunday... Quiet weather continues
today as a strong ridge of high pressure remains in place over the
west coast. Many locations are already at or above 70 degrees and
areas from san jose southward will be approaching record highs
later this afternoon. The current high amplitude ridge will remain
over the region for most of the week resulting in little change
in the day to day weather. Mornings will continue to be cool and
afternoons will remain above normal under mostly clear skies and
light winds. Still no signs of rain through the forecast period.

Towards the end of the week, the 12z runs of both the GFS and the
ecmwf continue to show a shift in the ridge with a weak shortwave
trough moving in over the pacific northwest and northern
california. Any precipitation associated with this trough,
however, will stay well to our north.

By next weekend, the models have us once again under high
pressure. Beyond that, the 12z run of the ECMWF seems to be coming
into better agreement with the GFS in showing the ridge
amplifying over alaska by the 20th and a trough moving in to take
its place over the west coast with maybe even some precipitation
for northern california.

Aviation As of 3:37 pm pst Sunday for 00z tafs. No major
updates from previous TAF package. Strong high pressure will
continue over the western conus, resulting inVFR conditions
through the forecast period. Kept fog in the TAF at ksts late
tonight, into Monday morning. Generally light winds expected
overnight across the district.

High confidence.

Vicinity of ksfo...VFR. Light offshore winds expected through the
forecast period.

Sfo bridge approach... Similar to ksfo.

Monterey bay terminals...VFR. Generally light winds overnight,
though breezy east southeast winds are expected at ksns overnight
tonight and Monday morning.

Marine As of 3:00 pm pst Sunday... Locally breezy conditions
will continue overnight along coastal gaps as high pressure
remains parked over the west coast. A longer period west to
northwest swell will arrive later tonight and will continue into
Monday.

Mtr watches warnings advisories
Tngt Sca... Pt reyes to pigeon pt 0-10 nm until 9 pm
public forecast: as
aviation: bam
marine: rowe
visit us at

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RTYC1 - 9414523 - Redwood City, CA 14 mi49 min N 4.1 G 4.1 63°F 54°F1022.9 hPa
AAMC1 - 9414750 - Alameda, CA 30 mi49 min SSW 1 G 1.9 61°F 55°F1022.6 hPa
LNDC1 30 mi49 min WSW 4.1 G 5.1 63°F 1022.4 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 32 mi49 min S 2.9 G 4.1
OBXC1 33 mi49 min 62°F 44°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 33 mi49 min S 1.9 G 2.9 64°F 1022.4 hPa
PXSC1 34 mi49 min 64°F 41°F
FTPC1 - 9414290 - San Francisco, CA 37 mi49 min N 8 G 11 61°F 55°F1022.7 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 39 mi49 min NE 5.1 G 11 67°F 1022.8 hPa
TIBC1 - Tiburon Pier, San Francisco Bay, CA 41 mi45 min WSW 4.1 61°F 1023 hPa
RCMC1 - 9414863 - Richmond, CA 42 mi49 min ENE 6 G 11 65°F 55°F1022.3 hPa
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 43 mi49 min SSE 6 G 7 60°F 1023.6 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 43 mi49 min E 6 G 11 63°F 54°F1023.5 hPa40°F
46237 - San Francisco Bar, CA (142) 43 mi79 min 54°F4 ft
ELXC1 - Elkhorn Slough Reserve, CA 44 mi94 min E 6 76°F 1020 hPa29°F
PCOC1 - 9415144 - Port Chicago, CA 44 mi49 min E 8.9 G 12 62°F 54°F1023.2 hPa
46092 - MBM1 46 mi69 min NNE 5.8 64°F 58°F1020.4 hPa (-1.7)
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 46 mi49 min E 15 G 21 62°F 1022.4 hPa
46012 - HALF MOON BAY - 24NM South Southwest of San Francisco, CA 48 mi89 min NE 9.7 G 12 60°F 56°F6 ft1020.7 hPa (-2.0)
46042 - MONTEREY - 27NM West of Monterey Bay, CA 49 mi89 min NE 5.8 G 5.8 61°F 58°F5 ft1020.4 hPa (-1.9)

Wind History for Redwood City, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Mountain View, Moffett Field, CA4 mi83 minNNW 310.00 miFair68°F34°F28%1023 hPa
San Jose, San Jose International Airport, CA4 mi26 minNW 510.00 miPartly Cloudy67°F34°F30%1022.2 hPa
Palo Alto Airport, CA8 mi32 minN 510.00 miPartly Cloudy64°F42°F46%1022.7 hPa
San Jose / Reid / Hillv, CA10 mi25 minNW 510.00 miPartly Cloudy66°F33°F30%1022 hPa
San Carlos Airport, CA16 mi32 minVar 310.00 miA Few Clouds61°F48°F63%1022.3 hPa
Hayward, Hayward Air Terminal, CA18 mi25 minNE 910.00 miFair68°F32°F26%1023.3 hPa
Livermore, Livermore Municipal Airport, CA21 mi26 minE 98.00 miFair60°F39°F46%1023 hPa
Oakland, Metro Oakland International Airport, CA23 mi26 minW 310.00 miPartly Cloudy60°F39°F48%1022.6 hPa
San Francisco, San Francisco International Airport, CA24 mi83 minN 410.00 miPartly Cloudy61°F41°F48%1022.6 hPa

Wind History from SJC (wind in knots)
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Last 24hrW6CalmCalmS3CalmE3SE3CalmCalmE3CalmE3E4CalmSE6SE4SE3CalmCalmCalmNW34W5NW5
1 day agoW6W3S4CalmSE33SE3E4E3CalmCalmCalmCalmCalmCalm3CalmCalmCalmCalmSW3CalmNW6NW5
2 days agoW3CalmSE3SE3SE5SE5SE4CalmE5E3E3CalmE3CalmCalmSE4CalmCalmCalmCalmNW5NW4NW4NW5

Tide / Current Tables for Gold Street Bridge, Alviso Slough, San Francisco Bay, California
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Gold Street Bridge
Click for Map
Sun -- 12:48 AM PST     0.16 feet Low Tide
Sun -- 06:50 AM PST     9.45 feet High Tide
Sun -- 07:11 AM PST     Sunrise
Sun -- 12:51 PM PST     Moonset
Sun -- 02:01 PM PST     1.93 feet Low Tide
Sun -- 04:49 PM PST     Sunset
Sun -- 06:22 PM PST     7.57 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.40.212.857.399.48.97.76.24.53.12.21.92.64.36.27.57.56.85.74.32.8

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
Sun -- 12:47 AM PST     0.00 knots Slack
Sun -- 03:41 AM PST     1.41 knots Max Flood
Sun -- 06:56 AM PST     -0.00 knots Slack
Sun -- 07:12 AM PST     Sunrise
Sun -- 11:05 AM PST     -0.86 knots Max Ebb
Sun -- 12:51 PM PST     Moonset
Sun -- 01:40 PM PST     0.00 knots Slack
Sun -- 04:06 PM PST     0.91 knots Max Flood
Sun -- 04:50 PM PST     Sunset
Sun -- 06:50 PM PST     -0.00 knots Slack
Sun -- 11:07 PM PST     -0.97 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.50.20.91.31.41.20.7-0-0.4-0.7-0.8-0.9-0.8-0.40.20.70.90.80.5-0.1-0.4-0.7-0.9-1

Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of CentralWestCoast    EDIT
Geos

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