Friday, November17, 2017 L-36.com


Marine Weather and Tides
Port Costa, 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 6:51AMSunset 4:56PM Friday November 17, 2017 4:37 PM PST (00:37 UTC) Moonrise 5:56AMMoonset 4:56PM Illumination 1% Phase: Waning Crescent; Moon at 29 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- 218 Pm Pst Fri Nov 17 2017
Tonight..N winds 5 to 15 kt. Patchy fog after midnight.
Sat..NE winds 10 kt. Patchy fog in the morning.
Sat night..N winds 10 kt.
Sun..NW winds 10 kt.
Sun night..SW winds 5 to 15 kt. Slight chance of rain after midnight.
Mon..E winds 5 to 15 kt. Chance of rain.
Tue..E winds 10 kt. Slight chance of rain.
Wed..SE winds 5 kt. Slight chance of rain.
PZZ500 218 Pm Pst Fri Nov 17 2017
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Generally light to locally moderate northerly winds for the rest of the day, then decreasing through the weekend. Strongest winds will be along the big sur coast for today. Winds turn southerly and increase Sunday night into early Monday ahead of a weak frontal boundary. Seas light to moderate, easing through the coming days.

7 Day Forecast for Marine Location Near Port Costa, CA
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location: 38.03, -122.15     debug


Area Discussion for - Sacramento, CA
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Fxus66 ksto 172253
afdsto
area forecast discussion
national weather service sacramento ca
253 pm pst Fri nov 17 2017

Synopsis
Dry weather through Sunday. Next system moves through Monday with
another during mid week. Each of these next systems will come
with light to moderate precipitation and high snow levels
generally above pass levels.

Discussion
Major weather system of the past few days has moved into the
great basin region. Pacific ridge is building over norcal behind
this system with dry conditions and northerly surface winds.

Overnight and early morning fog chances seem less likely as north
wind of 5-10 mph should keep mixing and drying from sacramento
northward. Some patchy fog could form sacramento southward,
especially in river valleys.

Ridging with dry conditions will continue into Sunday with near
normal temperatures in the low 60's. A weak weather system will
bring light showers Monday, best chances northern sacramento
valley and shasta county. Precip should be light with this system,
generally less than 0.25 for valleys and less than an inch
mountains. Snow levels will be high generally above 8000 feet.

.Extended discussion (Tuesday through Friday)
upper level ridge moves eastward as another disturbance slides
into northern california with more chances for precipitation.

Model forecasts are in general agreement to the atmospheric flow
pattern with moisture streaming into the coast in an atmospheric
river type pattern, but right now latest model runs have the brunt
of the precipitation remaining well to the north of california. If
this pattern holds true, light to moderate rain across the
forecast area can be expected with snow levels well above pass
level and light accumulations at high peaks.

Aviation
Vfr MVFR conditions with occasional ifr conditions in the valley
with fog and low stratus development towards the morning hours.

Fog and low clouds will diminish in the late morning to early
afternoon hours to mostly clear skies andVFR conditions for the
taf sites.

Sto watches warnings advisories
None.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SFXC1 - San Francisco Bay Reserve, CA 13 mi112 min NE 9.9 62°F 1022 hPa39°F
TIBC1 - Tiburon Pier, San Francisco Bay, CA 18 mi65 min NW 2.9 57°F 1022 hPa
46237 - San Francisco Bar, CA (142) 31 mi67 min 57°F5 ft
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 41 mi47 min NNW 12 G 16 56°F 57°F5 ft1021.6 hPa (-0.6)

Wind History for Martinez-Amorco Pier, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Concord, Buchanan Field, CA6 mi44 minno data10.00 miFair62°F41°F46%1020.2 hPa
Napa, Napa County Airport, CA14 mi43 minN 810.00 miFair62°F37°F40%1020.8 hPa
Fairfield / Travis Air Force Base, CA21 mi39 minN 1010.00 miFair59°F38°F47%1021.7 hPa
Novato / Gnoss Field, CA23 mi42 minN 710.00 miFair63°F39°F42%1022 hPa
Oakland, Metro Oakland International Airport, CA23 mi44 minNNE 1310.00 miFair60°F42°F52%1021.2 hPa

Wind History from CCR (wind in knots)
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Last 24hrS6S5SW4S4S8S7W10W9W5S3W7SW4CalmS4SW4S5W3N5NW3N35N6
G15
--5
1 day agoN8S7S14
G19
--------S7S8S4NW10NW5W5W7SE3CalmW3SW3W4CalmS4S4W6S7
2 days agoW4CalmCalmSE3S3SE3SE4S3SE4SE4CalmSW3SE3CalmW3CalmN6N5E6NE7NE55N4N3

Tide / Current Tables for Suisun Point, Carquinez Strait, California
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Suisun Point
Click for Map
Fri -- 12:53 AM PST     4.15 feet High Tide
Fri -- 05:55 AM PST     Moonrise
Fri -- 06:23 AM PST     1.15 feet Low Tide
Fri -- 06:51 AM PST     Sunrise
Fri -- 12:28 PM PST     5.30 feet High Tide
Fri -- 04:54 PM PST     Sunset
Fri -- 04:55 PM PST     Moonset
Fri -- 07:35 PM PST     -0.34 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.94.13.832.21.61.21.21.82.93.94.85.25.24.63.62.41.30.4-0.2-0.30.31.32.4

Tide / Current Tables for Carquinez Strait, California Current
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Carquinez Strait
Click for Map
Fri -- 02:34 AM PST     -0.00 knots Slack
Fri -- 05:30 AM PST     -1.71 knots Max Ebb
Fri -- 05:56 AM PST     Moonrise
Fri -- 06:52 AM PST     Sunrise
Fri -- 08:01 AM PST     0.00 knots Slack
Fri -- 10:54 AM PST     2.26 knots Max Flood
Fri -- 02:10 PM PST     -0.00 knots Slack
Fri -- 04:55 PM PST     Sunset
Fri -- 04:56 PM PST     Moonset
Fri -- 06:18 PM PST     -2.88 knots Max Ebb
Fri -- 09:37 PM PST     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
21.50.6-0.4-1.2-1.7-1.7-1.1-01.222.321.30.2-1-1.9-2.6-2.9-2.8-2-0.80.51.4

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 Sacramento, CA (19,4,5,8)
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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.