Thursday, November15, 2018 L-36.com


Marine Weather and Tides
Stinson Beach, 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 4:59PM Thursday November 15, 2018 10:56 AM PST (18:56 UTC) Moonrise 1:17PMMoonset 12:00AM Illumination 52% Phase: First Quarter Moon; Moon at 8 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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PZZ545 Coastal Waters From Point Reyes To Pigeon Point California Out To 10 Nm- 844 Am Pst Thu Nov 15 2018
Today..NE winds up to 10 kt...becoming nw this afternoon. Wind waves 2 ft or less. W swell 4 to 7 ft at 16 seconds and S around 2 ft at 14 seconds. Hazy and patchy smoke.
Tonight..NW winds up to 10 kt. Wind waves 2 ft or less. W swell 5 to 8 ft at 15 seconds and S around 2 ft at 14 seconds. Hazy and patchy smoke.
Fri..NW winds up to 10 kt. Wind waves 2 ft or less. W swell 4 to 7 ft at 14 seconds and S around 2 ft at 14 seconds. Hazy and patchy smoke.
Fri night..NW winds 5 to 10 kt. Wind waves 2 ft or less. W swell 3 to 6 ft at 13 seconds and S around 2 ft at 16 seconds.
Sat..W winds around 5 kt. Wind waves 2 ft or less. W swell 3 to 4 ft at 15 seconds and sw around 2 ft at 16 seconds.
Sat night..W winds around 5 kt. Wind waves 2 ft or less. W swell 3 to 5 ft at 16 seconds and S around 2 ft at 15 seconds.
Sun..N winds around 5 kt. Wind waves 2 ft or less. W swell 4 to 6 ft and S around 2 ft.
Mon..E winds around 5 kt. Wind waves 2 ft or less. W swell 3 to 5 ft and S around 2 ft.
...san francisco bar/fourfathom bank forecast..... In the deep water channel...combined seas 3 to 6 ft with a dominant period of 14 seconds. Across the bar...combined seas 4 to 7 ft with a dominant period of 14 seconds. Maximum ebb current of 1.1 knots at 10:49 am Thursday and 1.4 knots at 10:07 pm Thursday.
PZZ500 844 Am Pst Thu Nov 15 2018
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... North to northwest winds will prevail over the coastal waters through the end of the week and into the coming weekend. Expect locally breezy winds near coastal gaps and favored coastal jet locations during the afternoon and evening hours. Mixed swell with a moderate northwest swell and light southerly swell.


7 Day Forecast for Marine Location Near Stinson Beach CDP, CA
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location: 37.85, -122.67     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 151758
afdmtr
area forecast discussion
national weather service san francisco bay area
958 am pst Thu nov 15 2018

Synopsis Smoke and haze will continue to produce poor air
quality over much of the san francisco bay through late week. Dry
and mild conditions are also likely to persist through early next
week with the potential for slight improvement in smoky
conditions by the weekend as weak onshore flow returns. A more
significant pattern change appears likely during the latter half
of next week with the potential for widespread rainfall.

Discussion As of 9:25 am pst Thursday... Smoke from the camp
fire continues to adversely impact the district this morning,
especially around the greater san francisco bay area where
visibilities continue to fluctuate between 1 mile and 3 miles.

These conditions are resulting in poor air quality with no
significant improvement forecast through the weekend as weak
offshore low persists.

Day-to-day changes are minor through the upcoming weekend with
daytime temperatures warming into the 60s and 70s with overnight
lows in the middle 30s across the colder inland locations to
middle 40s near the coast bays. Very dry conditions are also
likely to persist, even near the coast through the weekend. Weak
offshore flow will continue to spread smoke over the region until
the large scale pattern aloft changes. Right now, this much-needed
pattern change isn't expected to occur until the middle of next
week, at the earliest. The 00z ECMWF has a weak frontal system
bringing rain to much of the area late next Wednesday, followed by
a stronger front on Friday. The 12z GFS holds off the first
system until thanksgiving, followed by another system on Friday.

The rainfall, along with stronger onshore flow, will help to scour
out the smoke from the area.

Aviation As of 09:50 am pst Thursday... For 18z tafs. Widespread
impacts from smoke, particularly for sf bay area and the
carquinez strait delta as offshore winds inland funnel smoke from
the camp fire in butte county towards the golden gate gap. Smoke
concentrations are particularly think around the east bay (ie kccr
klvk) and near the sf bay shoreline (koak ksjc knuq ksfo) as smoke
fans out and dams up after exiting the delta and before exiting
the golden gate gap. Expect ifr to MVFR visibilities at sf bay
area terminals with MVFR CIGS possible at some terminals due to
the wildfire smoke. Poor slant range visbys will impact arrivals.

Winds shift late Friday however smoke is forecast to linger in
place under a stagnant air mass with very weak winds. Smoke
impacts may continue until next storm system, slated for a week
out from now.

Vicinity of ksfo... Ifr to MVFR visibilities with MVFR ceilings due
to wildfire smoke through the duration of the TAF period.

Afternoon winds onshore 8 to 12kt.

Sfo bridge approach... Similar to terminal.

Monterey bay terminals...VFR conditions are generally forecast to
prevail; though, periods of smoke during the day could drop
visibilities to MVFR levels. Easterly winds in the morning at both
sns and mry will become onshore by the afternoon.

Marine As of 09:41 am pst Thursday... North to northwest winds
will prevail over the coastal waters through the end of the week
and into the coming weekend. Expect locally breezy winds near
coastal gaps and favored coastal jet locations during the
afternoon and evening hours. Mixed swell with a moderate northwest
swell and light southerly swell.

Mtr watches warnings advisories
Tday None.

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

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46237 - San Francisco Bar, CA (142) 5 mi86 min 54°F6 ft
FTPC1 - 9414290 - San Francisco, CA 11 mi44 min NNE 7 G 9.9 54°F 56°F1022.2 hPa
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 11 mi36 min NE 3.9 G 5.8 55°F 57°F1021.9 hPa
TIBC1 - Tiburon Pier, San Francisco Bay, CA 12 mi39 min NNW 9.9 53°F 1022 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 15 mi38 min NW 7 G 8 53°F 1021 hPa
RCMC1 - 9414863 - Richmond, CA 15 mi38 min 57°F
PXSC1 15 mi38 min 55°F 44°F
PPXC1 - 9414847 - Richmond (Point Potrero), CA 17 mi38 min SE 1 G 1.9 55°F 1022.1 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 18 mi38 min WNW 1.9 G 2.9
OKXC1 - 9414776 - Oakland (Berth 34), CA 18 mi38 min WNW 2.9 G 2.9 52°F 1021.9 hPa
OBXC1 18 mi38 min 53°F 38°F
PRYC1 - 9415020 - Point Reyes, CA 19 mi44 min Calm G 0 55°F1021.1 hPa
AAMC1 - 9414750 - Alameda, CA 20 mi44 min Calm G 1.9 55°F 58°F1022.1 hPa
LNDC1 21 mi38 min WSW 1.9 G 2.9 54°F 1021.8 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 26 mi38 min E 11 G 14 52°F 1022 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 32 mi38 min ENE 5.1 G 7 50°F 58°F1022.8 hPa38°F
RTYC1 - 9414523 - Redwood City, CA 34 mi38 min N 1.9 G 2.9 54°F 59°F1022.1 hPa
PCOC1 - 9415144 - Port Chicago, CA 36 mi38 min ENE 5.1 G 6 48°F 58°F1022.8 hPa
SFXC1 - San Francisco Bay Reserve, CA 42 mi71 min Calm 49°F 1023 hPa32°F
46013 - Bodega Bay - 48NM North Northwest of San Francisco, CA 43 mi36 min N 5.8 G 5.8 55°F1022 hPa
46214 - Point Reyes, CA (029) 43 mi56 min 58°F8 ft
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 44 mi38 min ESE 2.9 G 4.1 48°F 1022.8 hPa

Wind History for San Francisco, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Novato / Gnoss Field, CA21 mi81 minN 05.00 miFair with Haze46°F32°F57%1022.7 hPa
San Francisco, San Francisco International Airport, CA23 mi2 hrsSSE 32.50 miOvercast with Haze52°F42°F69%1022 hPa

Wind History from DVO (wind in knots)
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Last 24hrCalmSE4SE4SE6SE4E4S4CalmS3S3CalmCalmCalmS3CalmCalmCalmCalmCalmCalmCalmCalmCalmS4
1 day agoS6S7S5Calm4S5S5S5SW5S3S4CalmN4CalmCalmCalmCalmCalmS7N6CalmCalmCalmN5
2 days agoS8SW7S7SW7S6SW4S4S6S6CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmS5

Tide / Current Tables for Bolinas Lagoon, California
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Bolinas Lagoon
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Thu -- 06:11 AM PST     3.31 feet High Tide
Thu -- 06:51 AM PST     Sunrise
Thu -- 06:54 AM PST     First Quarter
Thu -- 12:32 PM PST     1.81 feet Low Tide
Thu -- 01:16 PM PST     Moonrise
Thu -- 04:40 PM PST     3.03 feet High Tide
Thu -- 04:58 PM PST     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.50.81.42.12.73.13.33.232.72.321.81.82.12.62.932.92.521.510.6

Tide / Current Tables for San Francisco Bay Entrance (Golden Gate), California Current
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San Francisco Bay Entrance (Golden Gate)
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Thu -- 01:07 AM PST     0.00 knots Slack
Thu -- 04:18 AM PST     2.66 knots Max Flood
Thu -- 06:50 AM PST     Sunrise
Thu -- 06:54 AM PST     First Quarter
Thu -- 07:39 AM PST     -0.00 knots Slack
Thu -- 09:53 AM PST     -1.79 knots Max Ebb
Thu -- 01:15 PM PST     Moonrise
Thu -- 01:51 PM PST     0.00 knots Slack
Thu -- 04:12 PM PST     1.39 knots Max Flood
Thu -- 04:58 PM PST     Sunset
Thu -- 06:53 PM PST     -0.00 knots Slack
Thu -- 09:56 PM PST     -3.00 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-1.3-0.21.22.22.62.620.9-0.5-1.5-1.8-1.6-1.2-0.70.111.41.30.8-0.1-1.5-2.6-3-2.6

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 (13,3,4,5)
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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.