Monday, March18, 2019 L-36.com


Marine Weather and Tides
Milpitas, CA

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:12AMSunset 7:18PM Monday March 18, 2019 8:36 AM PDT (15:36 UTC) Moonrise 3:46PMMoonset 4:57AM Illumination 93% Phase: Waxing Gibbous; Moon at 12 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- 818 Am Pdt Mon Mar 18 2019
.small craft advisory in effect from Tuesday afternoon through Tuesday evening...
Today..NE winds 5 to 15 kt.
Tonight..SW winds 5 to 15 kt.
Tue..SW winds 10 kt...increasing to 15 to 25 kt in the afternoon.
Tue night..SW winds 10 to 20 kt. Chance of showers.
Wed..SE winds 10 to 20 kt...becoming northeast 10 kt. Showers likely, then chance of showers in the evening.
Thu..W winds 10 kt. Slight chance of showers.
Fri..SW winds 10 kt. Chance of showers, then showers likely.
PZZ500 818 Am Pdt Mon Mar 18 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Winds will become more southerly this afternoon ahead of an approaching low pressure system moving in from the west. Southerly winds will increase along with rain chances on Tuesday as a cold front moves through the region. A long period westerly swell will arrive tomorrow, increasing shoaling on bars and harbor entrances is anticipated.


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 181152
afdmtr
area forecast discussion
national weather service san francisco bay area
452 am pdt Mon mar 18 2019

Synopsis A ridge of high pressure will maintain dry and
seasonably mild weather conditions over the region today. A more
progressive pattern will return by Tuesday and persist through late
week with periods of wet and unsettled weather. Cooler temperatures
will also return and continue into the upcoming weekend.

Discussion As of 03:04 am pdt Monday... An upper level ridge of
high pressure along the west coast will continue to dominate the
region's weather today resulting in daytime temperatures above
seasonal averages. However, as onshore flow increases slightly,
temperatures near the coast are expected to be a few degrees
cooler compared to yesterday. Low clouds currently seen on
satellite imagery will likely remain offshore while few scattered
high clouds stream over the region in advance of an approaching
storm system.

The latest forecast models are in good agreement with the ridge axis
shifting inland and to the north as a negatively tilted trough
approaches the coast on Tuesday. This will cool temperatures region-
wide on Tuesday and bring chance for rain showers to the region by
Tuesday evening. Rain showers will then continue into Tuesday night
and much of the day Wednesday as another disturbance pushes inland.

With the increase in instability aloft, cannot rule out an isolated
thunderstorm or two. However, given the low confidence for
convection, will keep thunderstorms out of the official forecast at
this time. Generally expecting rainfall amounts to range from 0.25"
to 0.50" for most urban areas with upwards of 1.25" in the santa
cruz and santa lucia mountain ranges. Overall, these rainfall
amounts will be beneficial given the recent dry trend over the past
week.

A weak ridge will build over the region in wake of the exiting
system and ahead of the next set to arrive on Friday. This will
bring dry conditions on Thursday with daytime temperatures generally
in the upper 50s near the coast to lower 60s inland. The next system
will arrive from the north early Friday before spreading inland and
to the south through Friday night. Colder air will advect southward
across the region with snow levels falling as low as 4,000 feet by
Friday night resulting in light snowfall over the region's highest
peaks. Lingering showers will be possible into Saturday as well with
temperatures near to slightly below seasonal averages through the
weekend.

While conditions may dry out briefly Saturday night into Sunday,
unsettled weather looks to return during the first half of next week
with the arrival of yet another mid upper level system. The
operational models do differ in the timing and trajectory, yet the
ensembles point toward an ongoing cool, unsettled pattern in the
extended.

Aviation As of 4:45 am pdt Monday... Mainly clear skies will
prevail today with only a few high clouds streaming overhead and
the slight chance of patchy low clouds over the north bay this
morning. Light winds this morning will increase and veer onshore
through the afternoon. East to southeasterly winds expected this
evening.

Vicinity of ksfo...VFR conditions will persist through the
forecast period. Light winds this morning will increase and veer
onshore this afternoon. East to southeasterly winds will develop
this evening.

Sfo bridge approach... Similar to ksfo.

Monterey bay terminals...VFR conditions will persist through the
forecast period. Light winds this morning will increase and veer
onshore this afternoon. East to southeasterly winds will develop
this evening.

Marine As of 2:23 am pdt Monday... Light westerly winds will
become southerly this afternoon ahead of an approaching low
pressure system moving in from the west. Southerly winds will
increase and rain chances will be introduced over the coastal
waters on Tuesday as the cold front moves into the region. A long
period westerly swell will arrive Tuesday increasing shoaling on
bars and harbor entrances anticipated.

Mtr watches warnings advisories
Tday None.

Public forecast: rgass
aviation marine: cw
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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RTYC1 - 9414523 - Redwood City, CA 17 mi36 min Calm G 1 53°F 59°F1015.9 hPa (+0.8)
LNDC1 31 mi36 min NNW 1.9 G 4.1 55°F 1015.3 hPa (+0.6)
AAMC1 - 9414750 - Alameda, CA 31 mi42 min Calm G 1.9 55°F 57°F1015.7 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 33 mi42 min NNW 6 G 8
OBXC1 34 mi36 min 55°F 52°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 34 mi36 min NNW 6 G 7 55°F 1015.4 hPa (+0.6)
PXSC1 36 mi42 min 57°F 51°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 36 mi36 min NW 1.9 G 2.9 56°F 1014.4 hPa (+0.6)
FTPC1 - 9414290 - San Francisco, CA 39 mi42 min ENE 5.1 G 6 56°F 55°F1015.5 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 40 mi36 min N 7 G 9.9 56°F 1015.6 hPa (+0.5)
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 41 mi36 min Calm G 0 55°F 1016.2 hPa (+1.2)
TIBC1 - Tiburon Pier, San Francisco Bay, CA 42 mi121 min NW 4.1 54°F 1015 hPa
RCMC1 - 9414863 - Richmond, CA 43 mi42 min NNW 5.1 G 7 55°F 55°F1015.2 hPa
UPBC1 43 mi36 min ESE 6 G 7
PCOC1 - 9415144 - Port Chicago, CA 43 mi36 min ENE 9.9 G 12 54°F 54°F1016.1 hPa (+0.8)
MZXC1 - 9415102 - Martinez-Amorco CA 43 mi36 min ESE 2.9 G 4.1 52°F 54°F1016.2 hPa (+0.9)52°F
ELXC1 - Elkhorn Slough Reserve, CA 44 mi111 min E 1.9 51°F 1015 hPa45°F
MLSC1 - Moss Landing, South Harbor, CA 45 mi190 min ESE 4.1 G 11 52°F 1015.2 hPa44°F
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 47 mi36 min ENE 9.9 G 12 53°F 1015.5 hPa (+0.7)
46092 - MBM1 48 mi82 min NE 12 53°F 55°F1013.6 hPa (-1.0)

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 mi43 minSE 310.00 miPartly Cloudy50°F43°F77%1015.3 hPa
Mountain View, Moffett Field, CA7 mi1.7 hrsN 010.00 miFair51°F44°F77%1015.4 hPa
San Jose / Reid / Hillv, CA8 mi49 minN 010.00 miClear50°F44°F82%1014.9 hPa
Palo Alto Airport, CA11 mi49 minN 010.00 miA Few Clouds46°F42°F87%1015.6 hPa
Hayward, Hayward Air Terminal, CA19 mi42 minENE 310.00 miFair56°F44°F65%1016.2 hPa
Livermore, Livermore Municipal Airport, CA19 mi43 minN 05.00 miFair with Haze46°F41°F83%1015.7 hPa
San Carlos Airport, CA19 mi46 minN 010.00 miA Few Clouds52°F46°F82%1015.6 hPa
Oakland, Metro Oakland International Airport, CA24 mi43 minN 010.00 miA Few Clouds50°F46°F86%1015.6 hPa

Wind History from SJC (wind in knots)
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Last 24hrCalmCalmCalmW3CalmCalmNW9NW8NW5NW6NW7NW4W5S4S4CalmCalmCalmCalmCalmS3CalmSE3SE3
1 day agoSE4CalmNW5NW3NW4NW5N7NW5NW7NW10N9NW10NW7W3CalmCalmS4CalmCalmS3CalmS3SE3Calm
2 days agoCalmCalmCalmCalm4N4N8NW9NW9NW10NW9N11NW8NW6W5CalmSE3E3SE3SE3S3CalmCalmS5

Tide / Current Tables for Coyote Creek, Tributary #1, San Francisco Bay, California
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Coyote Creek
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Mon -- 12:13 AM PDT     7.68 feet High Tide
Mon -- 05:56 AM PDT     Moonset
Mon -- 06:33 AM PDT     1.82 feet Low Tide
Mon -- 07:14 AM PDT     Sunrise
Mon -- 11:16 AM PDT     8.83 feet High Tide
Mon -- 04:45 PM PDT     Moonrise
Mon -- 07:14 PM PDT     -1.04 feet Low Tide
Mon -- 07:17 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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7.67.56.65.23.82.61.923.35.47.58.88.77.86.34.42.40.7-0.5-1-0.613.25.6

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
Mon -- 03:49 AM PDT     -0.88 knots Max Ebb
Mon -- 05:56 AM PDT     0.01 knots Slack
Mon -- 05:56 AM PDT     Moonset
Mon -- 07:15 AM PDT     Sunrise
Mon -- 08:30 AM PDT     1.32 knots Max Flood
Mon -- 11:24 AM PDT     -0.01 knots Slack
Mon -- 04:02 PM PDT     -1.57 knots Max Ebb
Mon -- 04:46 PM PDT     Moonrise
Mon -- 06:39 PM PDT     0.01 knots Slack
Mon -- 07:18 PM PDT     Sunset
Mon -- 09:25 PM PDT     1.76 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0-0.4-0.7-0.8-0.9-0.60.10.81.31.310.3-0.3-0.8-1.2-1.5-1.6-1.3-0.60.41.31.71.71.3

Weather Map and Satellite Images
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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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Wind Forecast for San Francisco/Monterey Bay Area, CA (11,2,3,4)
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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.