Thursday, November23, 2017 L-36.com


Marine Weather and Tides
Milpitas, 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 6:55AMSunset 4:53PM Thursday November 23, 2017 6:48 AM PST (14:48 UTC) Moonrise 11:02AMMoonset 9:22PM Illumination 24% Phase: Waxing Crescent; Moon at 5 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- 305 Am Pst Thu Nov 23 2017
Today..W winds 10 kt. Patchy dense fog in the morning. Slight chance of rain in the afternoon.
Tonight..W winds 5 kt.
Fri..N winds 5 kt.
Fri night..N winds 5 kt.
Sat..E winds 5 kt...becoming southeast 5 to 15 kt. Slight chance of rain in the evening. Chance of rain after midnight.
Sun..SW winds 5 to 15 kt. Rain likely, then chance of rain.
Mon..NW winds 10 kt. Slight chance of rain.
PZZ500 305 Am Pst Thu Nov 23 2017
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Weak high pressure off the california coast will keep light winds through Friday. Southerly winds will increase Saturday as a low pressure system moves into the pacific northwest waters. Rain will spread over the area Saturday night and Sunday.

7 Day Forecast for Marine Location Near Milpitas, CA
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location: 37.44, -121.91     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 231143
afdmtr
area forecast discussion
national weather service san francisco bay area
343 am pst Thu nov 23 2017

Synopsis Chance of rain over the north bay today while the
rest of the region should remain dry with continued warmer than
normal temperatures. Dry weather is expected to return to all
areas on Friday and continue through most of Saturday. Rain will
return to our region late Saturday through Sunday.

Discussion As of 3:00 am pst Thursday... Kmux radar currently
indicates a few echoes off the sonoma coast plus in far sonoma
county. Look for these light showers to continue through the
morning and possibly tip a few buckets in the north bay into the
thanksgiving afternoon. For the rest of our region, a mix of
clouds and Sun can be expected (more clouds the farther north you
are) with warm november temperatures. Highs will range from lower
80s in parts of monterey county to the upper 60s around sections
of san francisco bay. For anyone traveling today driving
conditions will be very good. Only potential problem may be patchy
dense fog this morning in parts of the north bay around santa
rosa.

A ridge of high pressure will attempt to build back into our
region as today's system moves off to the east. This will lead to
dry weather for Friday into almost all of Saturday. Highs will
remain warmer than normal, although should be a few degrees cooler
than what we will see today.

The synoptic pattern will undergo changes impacting the second
half of the weekend. An upper level low near the gulf of alaska
will dive southward and eventually to the pacnw by Sunday. At the
same time a surface cold front will move across our region and
bring rainfall back to the north bay late starting Saturday
evening. The front will progress to the south and east leading to
rainfall spreading across our entire CWA through Sunday. Rain
will briefly switch to showers behind the front before dry
weather returns again going into next work week. Rainfall amounts
continue to not look impressive, although due to the spread
between model solutions and ensemble members, some caution is
definitely in order. Right now looks like generally 1 4" to 1 2"
can be expected for many urban spots. Coastal ranges will likely
be in the 1 3" to 2 3" with isolated spots possibly seeing 1". In
addition to the rain, winds will increase with gusts from the
south of over 20 mph possible in spots.

Dry weather now looks likely for next work week with highs
averaging a bit above normal. Record values from this week look
very unlikely to continue into next week.

Aviation As of 3:30 am pst Thursday... An upper level shortwave
passing north of the area will bring a moist southwest flow into
the sfo bay area.VFR conditions are expected today except for
morning fog at sts but by tonight some lower level moisture may
bring some MVFR CIGS to sfo and oak.

Vicinity of ksfo...VFR for today.

Sfo bridge approach... Similar to ksfo.

Monterey bay terminals...VFR.

Marine As of 3:45 am pst Thursday... Weak high pressure off the
california coast will keep light winds through Friday. Southerly
winds will increase Saturday as a low pressure system moves into
the pacific northwest waters. Rain will spread over the area
Saturday night and Sunday.

Mtr watches warnings advisories
Tday None.

Public forecast: bell
aviation: W pi
marine: W pi
visit us at

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RTYC1 - 9414523 - Redwood City, CA 17 mi49 min W 2.9 G 4.1 58°F 60°F1020.1 hPa (-0.4)
LNDC1 31 mi49 min NNW 2.9 G 4.1 58°F 1019.8 hPa
AAMC1 - 9414750 - Alameda, CA 31 mi49 min NNW 2.9 G 5.1 57°F 59°F1020.3 hPa (+0.3)
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 33 mi49 min NNW 7 G 8
OKXC1 - 9414776 - Oakland (Berth 34), CA 34 mi49 min NNW 7 G 8.9 57°F 1020 hPa (+0.3)
OBXC1 34 mi49 min 58°F 58°F
PXSC1 36 mi49 min 59°F 58°F
FTPC1 - 9414290 - San Francisco, CA 39 mi49 min Calm G 1.9 58°F 58°F1020.3 hPa (+0.0)
PPXC1 - 9414847 - Richmond (Point Potrero), CA 40 mi49 min N 9.9 G 13 57°F 1020.3 hPa (+0.0)
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 41 mi49 min NW 1.9 G 2.9 57°F 1019.3 hPa
TIBC1 - Tiburon Pier, San Francisco Bay, CA 42 mi47 min W 1 56°F 1020 hPa
RCMC1 - 9414863 - Richmond, CA 43 mi49 min NNW 6 G 8 57°F 58°F1020.1 hPa (+0.4)
PCOC1 - 9415144 - Port Chicago, CA 43 mi49 min S 6 G 7 55°F 58°F1019.5 hPa (-0.3)
MZXC1 - 9415102 - Martinez-Amorco CA 43 mi49 min WNW 6 G 7 57°F 59°F1019.9 hPa (-0.3)57°F
ELXC1 - Elkhorn Slough Reserve, CA 44 mi64 min Calm 59°F 1018 hPa55°F
46237 - San Francisco Bar, CA (142) 45 mi49 min 57°F6 ft
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 47 mi49 min WNW 1.9 G 2.9 55°F 1020 hPa (+0.0)
46092 - MBM1 48 mi99 min NE 7.8 60°F 59°F1018.1 hPa (-1.2)

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, CA5 mi56 minSW 39.00 miPartly Cloudy57°F55°F93%1019.3 hPa
Mountain View, Moffett Field, CA7 mi1.9 hrsW 310.00 miFair57°F55°F96%1020 hPa
San Carlos Airport, CA19 mi54 minWNW 310.00 miFair57°F57°F100%1019.6 hPa
Livermore, Livermore Municipal Airport, CA19 mi56 minN 05.00 miFog/Mist53°F53°F100%1019.4 hPa
Hayward, Hayward Air Terminal, CA19 mi55 minNW 38.00 miFair55°F51°F87%1020.4 hPa
Oakland, Metro Oakland International Airport, CA24 mi56 minNW 59.00 miMostly Cloudy55°F55°F100%1019.8 hPa

Wind History from SJC (wind in knots)
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Last 24hrNE3CalmCalmCalm33CalmNW6W6NW5W7NW5W3CalmCalmN3W4SE3CalmSW4E4S3CalmSW3
1 day agoW3SW3CalmCalmW3Calm3SE33NW7W4NW6NW6SW3CalmS3CalmSE4SE3W3SE3CalmCalmCalm
2 days agoCalmSE7SE5SE6SE9CalmNW3NW6NW7W7W5CalmNE3N3N4CalmCalmCalmCalmCalmCalmSE3CalmSW5

Tide / Current Tables for Coyote Creek, Tributary #1, San Francisco Bay, California
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Coyote Creek
Click for Map
Thu -- 04:50 AM PST     7.12 feet High Tide
Thu -- 06:56 AM PST     Sunrise
Thu -- 10:54 AM PST     3.00 feet Low Tide
Thu -- 11:01 AM PST     Moonrise
Thu -- 03:06 PM PST     7.65 feet High Tide
Thu -- 04:52 PM PST     Sunset
Thu -- 09:22 PM PST     Moonset
Thu -- 11:22 PM PST     -0.15 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.72.34.15.76.87.16.75.84.83.83.233.75.16.77.67.56.85.74.22.71.30.3-0.1

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
Thu -- 01:06 AM PST     1.18 knots Max Flood
Thu -- 04:43 AM PST     -0.01 knots Slack
Thu -- 06:56 AM PST     Sunrise
Thu -- 08:15 AM PST     -0.56 knots Max Ebb
Thu -- 10:26 AM PST     0.00 knots Slack
Thu -- 11:01 AM PST     Moonrise
Thu -- 12:48 PM PST     0.64 knots Max Flood
Thu -- 03:23 PM PST     -0.00 knots Slack
Thu -- 04:52 PM PST     Sunset
Thu -- 08:22 PM PST     -1.12 knots Max Ebb
Thu -- 09:23 PM PST     Moonset
Thu -- 11:06 PM PST     0.01 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
11.21.10.80.4-0.1-0.3-0.5-0.6-0.4-0.10.20.50.60.50.2-0.1-0.4-0.7-1-1.1-1-0.6-0.1

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 (9,2,3,4)
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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.