Monday, November19, 2018 L-36.com


Marine Weather and Tides
Santa Clara, 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 6:50AMSunset 4:55PM Monday November 19, 2018 3:39 PM PST (23:39 UTC) Moonrise 3:15PMMoonset 2:56AM Illumination 90% 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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PZZ560 Coastal Waters From Pigeon Point To Point Pinos California Out To 10 Nm- 211 Pm Pst Mon Nov 19 2018
.small craft advisory in effect from late Tuesday night through Wednesday afternoon...
Rest of today..NW winds around 5 kt. Wind waves 2 ft or less. Mixed swell W 3 to 4 ft at 12 seconds and S around 2 ft at 16 seconds. Hazy and patchy smoke.
Tonight..SE winds up to 10 kt. Wind waves 2 ft or less. Mixed swell W around 3 ft at 12 seconds and S around 2 ft at 16 seconds.
Tue..SE winds 5 to 15 kt with gusts up to 25 kt. Wind waves 2 ft or less. W swell around 3 ft at 11 seconds and S around 2 ft at 15 seconds. Hazy.
Tue night..SE winds 10 to 20 kt with gusts up to 25 kt. Wind waves 3 to 5 ft. Mixed swell W 3 to 4 ft at 17 seconds and S around 2 ft at 15 seconds. A chance of rain.
Wed..SE winds 15 to 25 kt with gusts up to 35 kt. Wind waves 4 to 7 ft. W swell 2 to 3 ft at 17 seconds and S around 2 ft at 14 seconds. Rain and a slight chance of Thunderstorms.
Wed night..SW winds 15 to 25 kt with gusts up to 30 kt. Wind waves 3 to 4 ft. W swell 2 to 6 ft at 16 seconds. Showers.
Thanksgiving day..W winds 5 to 15 kt. Wind waves 2 ft or less. W swell 7 to 8 ft. A chance of rain.
Fri..SW winds 5 to 15 kt. Wind waves 2 ft or less. W swell 7 to 10 ft. Rain. Winds and wind waves higher in and near Thunderstorms.
PZZ500 211 Pm Pst Mon Nov 19 2018
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Light winds into Tuesday. Increasing southerly winds arrive later Tuesday into Wednesday with the arrival of the first storm system in six weeks. Infrequent borderline gale force gusts may be possible with the frontal passage overnight through early Wednesday. Slight chance of Thunderstorms on Wednesday. Winds decrease Thursday. Mixed swell with a light northwest swell and a minor southerly swell. A longer northwest swell train arrives midweek.


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 192213
afdmtr
area forecast discussion
national weather service san francisco bay area
213 pm pst Mon nov 19 2018

Synopsis Dry, stagnant, hazy, and lingering smoke will
continue through Tuesday as high pressure gradually moves east. A
pattern change will develop by late Tuesday and widespread
rainfall is likely early Wednesday, with showers lingering
through Wednesday night and into Thursday morning. A second
system will likely bring additional rainfall to the area from
Thursday evening through Friday. Forecast models are trending
drier for next weekend.

Discussion As of 2:15 pm pst Monday... Upper level ridge axis
is slowly shifting east and extends northwestward into british
columbia. This is in response to an upper level low to our
southwest undercutting the ridge and a large trough in the north
pacific moving east. Upper low to our southwest has brought an
extensive cirrus deck to the region. Surface pattern remains
stagnant with generally light winds resulting in continued smoke
coverage over the bay area. Air quality remains in the unhealthy
category across the bay under these stagnant conditions.

Smoke haze will remain the main impact through the short term and
will persist tonight through Tuesday.

A series of storms are set to impact our region Wednesday through
the holiday weekend. Southerly to southeasterly flow will start
to increase on Tuesday ahead of an approaching trough. The increasing
southerly flow will help push some of the smoke haze out on
Tuesday, with additional improvement on Wednesday as southerly
flow further increases and rainfall helps to remove any lingering
smoke. Rainfall will begin late Tuesday night in the north bay
and will march south and east through the day on Wednesday. The
rain should arrive in time to impact the morning commute. Roadways
will likely be slick due to previous stretches of dry weather,
and motorists should use caution while driving. Rainfall amounts
will be heaviest in south to southwest-facing mountain areas, with
the big sur coast seeing the highest totals. Valley locations
downwind of mountain ranges, such as the salinas valley and santa
clara valley, will largely be rain shadowed until the cold front
passes Wednesday afternoon. Motorists traveling for thanksgiving
will also be impacted, with wet, slick roads around the region and
accumulating snow over the passes of the sierra nevada.

Showers look to continue Wednesday night into thanksgiving morning
before tapering off during the day as the trough moves overhead.

By late Thursday afternoon, the next storm will already be
beginning to impact the north bay. The euro trended a little further
south with the heaviest rain band with this system and as such
have increased rainfall amounts across the north bay. Points from
the bay area south will see less rainfall than the north bay with
this system than the trough on Wednesday as most of the moisture
moves inland to our north, with the southernmost zones only seeing
a few hundredths of an inch.

Showers will taper off by Saturday morning and a ridge will start
to build into the east pacific on Sunday and into Monday, bringing
a return to dry weather. Rain becomes possible again sometime next
week as the pattern remains progressive.

Aviation As of 10:00 am pst Monday... For 18z tafs. Upper low
off of southern california is spreading high clouds AOB 20000 ft
agl northward over the TAF sites this morning. Otherwise, main
impact continues to be smoke reducing visibility and limiting
slant range on approach throughout the sf bay area. Visibility
ranging in the ifr-MVFR range expected through the day at
ksfo koak klvk ksts ksjc kccr kapc but should begin to see some
improvements towards the 3-5sm range through the next 24 hours,
withVFR visibilities possible beginning tomorrow nite thru wed
arrival of first storm system in the area since oct 1-2.

Otherwise, light winds.

Vicinity of ksfo... Light winds, reduced vis to around 2sm-4sm and
periods of smoke and haze. Slant range issues through the morning. Passing
high clouds thru period. Visibility slowly improves into tomorrow,
then drastic improvement expected Tue nite through wed.

Sfo bridge approach... Similar to ksfo.

Monterey bay terminals... High clouds and light winds. May see
reduced vis to MVFR due to wildfire smoke but generallyVFR
expected through the daylight hours.

Marine As of 02:12 am pst Monday... Generally light winds will
continue into Tuesday before southerly winds increase ahead of an
approaching front. Southerly winds will increase Tuesday night
into Wednesday with gale force gusts possible, especially along
the immediate coast from pigeon point to point piedras blancas.

There will also be a slight chance of thunderstorms across the
waters Wednesday morning through the evening. Winds will diminish
and gradually transition out of the northwest on thanksgiving.

Light mixed swell will continue through mid-week before a larger
northwest swell arrives late this week followed by another storm
system.

Mtr watches warnings advisories
Tday None.

Public forecast: st
aviation: drp
marine: drp
visit us at

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RTYC1 - 9414523 - Redwood City, CA 19 mi39 min NNE 1.9 G 2.9 63°F 58°F1016 hPa (-1.6)
AAMC1 - 9414750 - Alameda, CA 34 mi45 min ESE 2.9 G 2.9 58°F 57°F1016 hPa
LNDC1 35 mi39 min S 2.9 G 2.9 60°F 1015.7 hPa (-1.7)
OBXC1 37 mi39 min 59°F 48°F
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 37 mi39 min SSE 4.1 G 4.1
OKXC1 - 9414776 - Oakland (Berth 34), CA 38 mi39 min S 2.9 G 4.1 60°F 1015.7 hPa (-1.6)
PXOC1 - 9414311 - San Francisco (Pier 1), CA 39 mi39 min SE 4.1 G 4.1 59°F 1014.7 hPa (-1.6)
PXSC1 39 mi39 min 60°F 46°F
ELXC1 - Elkhorn Slough Reserve, CA 40 mi54 min WNW 4.1 64°F 1015 hPa45°F
FTPC1 - 9414290 - San Francisco, CA 42 mi45 min N 4.1 G 6 62°F 56°F1015.8 hPa
46092 - MBM1 44 mi150 min SSW 5.8 60°F 58°F1016.3 hPa (+0.0)
PPXC1 - 9414847 - Richmond (Point Potrero), CA 44 mi39 min Calm G 1 63°F 1015.9 hPa (-1.7)
RCMC1 - 9414863 - Richmond, CA 46 mi39 min 56°F
TIBC1 - Tiburon Pier, San Francisco Bay, CA 46 mi64 min NW 4.1 62°F 1016 hPa
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 46 mi39 min SSE 2.9 G 2.9 62°F 1016.1 hPa (-1.7)
PCOC1 - 9415144 - Port Chicago, CA 47 mi39 min E 7 G 8.9 63°F 56°F1016.1 hPa (-1.6)
MZXC1 - 9415102 - Martinez-Amorco CA 47 mi39 min E 2.9 G 5.1 64°F 57°F1016.1 hPa (-1.7)35°F
46237 - San Francisco Bar, CA (142) 48 mi39 min 55°F3 ft
46042 - MONTEREY - 27NM West of Monterey Bay, CA 49 mi49 min SE 1.9 G 3.9 61°F 60°F4 ft1015 hPa (-1.4)

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 mi46 minWSW 43.00 miOvercast with Haze66°F39°F37%1015.6 hPa
San Jose / Reid / Hillv, CA5 mi52 minN 03.00 miSmoke66°F41°F40%1015.2 hPa
Mountain View, Moffett Field, CA9 mi1.7 hrsNNW 43.00 miSmoke64°F44°F48%1016.3 hPa
Palo Alto Airport, CA14 mi52 minN 42.50 miSmoke61°F0°F%1016.3 hPa
San Carlos Airport, CA21 mi46 minVar 32.00 miSmoke Haze63°F46°F56%1015.9 hPa
Livermore, Livermore Municipal Airport, CA23 mi46 minE 83.00 miHaze Smoke64°F28°F27%1015.7 hPa
Hayward, Hayward Air Terminal, CA23 mi45 minN 02.00 miHaze Smoke62°F41°F46%1016.7 hPa

Wind History from SJC (wind in knots)
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Last 24hrNW4NW5SW33Calm3SE3S4CalmSE3SE3CalmCalmCalmCalmSE3S3CalmCalmCalmCalmCalmCalmW4
1 day agoNW7N5NW6NW6NW3SW3SW3CalmCalmSE3S3CalmE3CalmCalmS4S3E3CalmSW33CalmNW3N6
2 days agoNW4N3NW3SW3CalmS3S3S4CalmCalmE3CalmCalmCalmCalmS3CalmCalmW3W4W5NW6NW5NW7

Tide / Current Tables for Gold Street Bridge, Alviso Slough, San Francisco Bay, California
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Gold Street Bridge
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Mon -- 02:56 AM PST     Moonset
Mon -- 04:22 AM PST     1.35 feet Low Tide
Mon -- 06:51 AM PST     Sunrise
Mon -- 09:46 AM PST     9.32 feet High Tide
Mon -- 03:15 PM PST     Moonrise
Mon -- 04:54 PM PST     Sunset
Mon -- 05:25 PM PST     1.02 feet Low Tide
Mon -- 10:21 PM PST     7.46 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.54.22.91.91.41.635.17.38.99.38.87.76.14.42.81.61.11.32.54.46.37.47.3

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
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Mon -- 01:44 AM PST     -0.86 knots Max Ebb
Mon -- 02:56 AM PST     Moonset
Mon -- 04:11 AM PST     0.00 knots Slack
Mon -- 06:52 AM PST     Sunrise
Mon -- 06:52 AM PST     1.18 knots Max Flood
Mon -- 09:59 AM PST     -0.00 knots Slack
Mon -- 02:16 PM PST     -1.08 knots Max Ebb
Mon -- 03:15 PM PST     Moonrise
Mon -- 04:54 PM PST     Sunset
Mon -- 04:59 PM PST     0.00 knots Slack
Mon -- 07:31 PM PST     1.12 knots Max Flood
Mon -- 10:34 PM PST     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.7-0.8-0.8-0.6-0.10.511.210.6-0-0.4-0.7-1-1.1-1-0.600.71.11.10.90.4-0.1

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 (18,4,5,8)
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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.