Tuesday, November21, 2017 L-36.com


Marine Weather and Tides
Montalvin Manor, 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 6:56AMSunset 4:54PM Tuesday November 21, 2017 4:01 AM PST (12:01 UTC) Moonrise 9:34AMMoonset 7:40PM Illumination 8% Phase: Waxing Crescent; Moon at 3 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- 217 Am Pst Tue Nov 21 2017
Today..NE winds 5 to 15 kt.
Tonight..NE winds 10 kt.
Wed..NE winds 10 kt.
Wed night..NW winds 10 kt.
Thanksgiving day..W winds 5 to 15 kt.
Fri..N winds 10 kt.
Sat..SE winds 5 kt...becoming sw. Slight chance of rain.
PZZ500 217 Am Pst Tue Nov 21 2017
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... As a ridge builds in from the south, a split windflow pattern is developing, with winds out of the north over the southern waters and out of the south over the northern waters. Winds will remain generally light with more moderate winds in the far northern waters. Chances of rain will return to the northern waters towards the end of the week. West to northwest swell will increase mid-week.

7 Day Forecast for Marine Location Near Montalvin Manor, CA
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location: 38.06, -122.39     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 211143
afdmtr
area forecast discussion
national weather service san francisco bay area
343 am pst Tue nov 21 2017

Synopsis High pressure will bring dry and warmer weather to
the area Tuesday and Wednesday. The high will move east on
Thursday with the next chance of rain late this weekend.

Discussion As of 3:00 am pst Tuesday... The warm front that
brought rain to the north bay has lifted north as upper level high
pressure over southern california strengthens and builds north.

This will lead to a big warmup in temperatures today through
Wednesday. Highs will be in the upper 60s and 70s across the sfo
bay area with 70s to lower 80s in the southern part of the cwa.

Temperatures on Wednesday will be a couple of degrees warmer than
Tuesday and will be the warmest day of the week. We will be under
a southwesterly flow so nighttime temperatures will remain quite
mild.

The ridge will start to flatten on Thursday as an upper level
shortwave moves through the pacific northwest. Temperatures
should cool off slightly and there is a slight chance of rain
reaching far northern sonoma county on Thursday. Partly cloudy but
dry conditions are expected for Friday and Saturday as the ridge
moves a little further to the east.

A weather system will bring a chance of rain to at least the
northern part of the CWA on Sunday. This is consistent with the
gfs solution while the ECMWF is wetter and brings rain chances to
much of the cwa.

Aviation As of 03:44 am pst Tuesday... For 12z tafs. Currently
vfr across most sites as mid to high level clouds continue to move
over the area. So far not seeing signs of lowering cigs, with the
exception of ksts. Therefore, keeping the CIGS at koak and ksfo
vfr for now. With the air still relatively moist, visibilities
may go down to MVFR at times early this morning due to haze. Winds
will remain generally light through the period at around 10 kt or
less.

Vicinity of ksfo... CIGS have remained above 10000 ft so far
tonight, so the tempo group for low cloud bases has been removed
from the 12z taf. ExpectingVFR conditions to prevail this
morning with possible MVFR vis due to haze. E-se winds will
continue into the morning before switching to northwest this
afternoon.

Sfo bridge approach... Similar to ksfo.

Monterey bay terminals...VFR conditions expected to prevail with
mainly light e-se winds this morning. Ksns may see winds up to 10
kt. Winds are expected to turn w-nw this afternoon but remain
light.

Marine As of 02:17 am pst Tuesday... As a ridge builds in from
the south, a split windflow pattern is developing, with winds out
of the north over the southern waters and out of the south over
the northern waters. Winds will remain generally light with more
moderate winds in the far northern waters. Chances of rain will
return to the northern waters towards the end of the week. West to
northwest swell will increase mid-week.

Mtr watches warnings advisories
Tday None.

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

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 7 mi43 min E 21 G 25 55°F 1020.3 hPa
RCMC1 - 9414863 - Richmond, CA 10 mi49 min NNE 1.9 G 2.9 58°F 58°F1020.4 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 11 mi43 min NE 5.1 G 9.9 60°F 1020.6 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 14 mi43 min ESE 7 G 11 54°F 58°F1022 hPa54°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 17 mi43 min WSW 1.9 G 1.9 57°F 1020.4 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 18 mi43 min S 1.9 G 4.1
PXSC1 18 mi43 min 59°F 56°F
OBXC1 18 mi43 min 58°F 55°F
FTPC1 - 9414290 - San Francisco, CA 18 mi49 min N 11 G 14 57°F 57°F1020.5 hPa
PCOC1 - 9415144 - Port Chicago, CA 19 mi43 min E 8.9 G 13 53°F 58°F1021.7 hPa
LNDC1 19 mi49 min WSW 1 G 1.9 58°F 1020.2 hPa
AAMC1 - 9414750 - Alameda, CA 20 mi43 min SE 1.9 G 2.9 57°F 58°F1020.7 hPa
SFXC1 - San Francisco Bay Reserve, CA 22 mi76 min E 8 51°F 1021 hPa50°F
46237 - San Francisco Bar, CA (142) 23 mi61 min 57°F4 ft
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 27 mi43 min SSE 4.1 G 5.1 53°F 1022.1 hPa
PRYC1 - 9415020 - Point Reyes, CA 31 mi43 min NNE 1.9 G 1.9 56°F1018.8 hPa
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 32 mi71 min ENE 14 G 18 58°F 57°F4 ft1019.2 hPa (-0.5)
RTYC1 - 9414523 - Redwood City, CA 39 mi43 min SSE 2.9 G 5.1 56°F 60°F1020.7 hPa

Wind History for Richmond, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Novato / Gnoss Field, CA11 mi66 minVar 510.00 miPartly Cloudy55°F51°F88%1021.7 hPa
Napa, Napa County Airport, CA12 mi67 minE 810.00 miFair54°F50°F87%1020.3 hPa
Petaluma Municipal Airport, CA18 mi66 minSE 79.00 miMostly Cloudy54°F51°F94%1021 hPa
Concord, Buchanan Field, CA19 mi68 minE 510.00 miFair56°F50°F81%1020.6 hPa

Wind History from DVO (wind in knots)
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Last 24hrCalmCalmS4CalmCalmSW4CalmSE4CalmSE3SE4SE5SE4CalmCalmCalmCalmCalmS4S5S4S4S5S4
1 day agoCalmCalmCalmCalmCalmCalmCalmCalmSE5E5SE64CalmCalmCalmCalmCalmSW3CalmCalmCalmN4N6S4
2 days agoCalmCalmCalmCalmCalmN3CalmE4443CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm

Tide / Current Tables for Pinole Point, San Pablo Bay, California
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Pinole Point
Click for Map
Tue -- 03:08 AM PST     4.77 feet High Tide
Tue -- 06:56 AM PST     Sunrise
Tue -- 07:57 AM PST     2.75 feet Low Tide
Tue -- 09:33 AM PST     Moonrise
Tue -- 01:36 PM PST     5.77 feet High Tide
Tue -- 04:53 PM PST     Sunset
Tue -- 07:40 PM PST     Moonset
Tue -- 08:37 PM PST     -0.21 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.83.84.54.84.64.13.42.92.733.64.45.15.75.75.34.331.70.5-0.1-0.20.31.1

Tide / Current Tables for Petaluma River Approach, San Pablo Bay, California Current
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Petaluma River Approach
Click for Map
Tue -- 12:12 AM PST     0.56 knots Max Flood
Tue -- 03:47 AM PST     -0.00 knots Slack
Tue -- 05:51 AM PST     -0.32 knots Max Ebb
Tue -- 06:57 AM PST     Sunrise
Tue -- 08:15 AM PST     0.00 knots Slack
Tue -- 09:33 AM PST     Moonrise
Tue -- 10:41 AM PST     0.60 knots Max Flood
Tue -- 01:51 PM PST     -0.00 knots Slack
Tue -- 04:53 PM PST     Sunset
Tue -- 05:19 PM PST     -0.88 knots Max Ebb
Tue -- 07:40 PM PST     Moonset
Tue -- 09:50 PM PST     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.60.50.40.2-0.1-0.3-0.3-0.2-0.10.30.50.60.50.2-0-0.4-0.7-0.9-0.9-0.7-0.6-0.30.10.4

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 (7,2,3,4)
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Ground Weather Radar Station Sacramento, 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.