Tuesday, April24, 2018 L-36.com


Marine Weather and Tides
Port Costa, CA

Version 3.4
What's New / NOTES
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
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.

Sunrise 6:18AMSunset 7:54PM Tuesday April 24, 2018 5:21 AM PDT (12:21 UTC) Moonrise 1:29PMMoonset 2:32AM Illumination 67% Phase: Waxing Gibbous; Moon at 9 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- 214 Am Pdt Tue Apr 24 2018
Today..SW winds 5 to 15 kt...becoming 10 to 15 kt with gusts up to 25 kt this afternoon.
Tonight..SW winds 5 to 15 kt.
Wed..SW winds 10 to 20 kt with gusts up to 25 kt.
Wed night..SW winds 10 to 20 kt with gusts up to 30 kt.
Thu..SW winds 10 to 20 kt with gusts up to 25 kt.
Thu night..W winds 10 to 20 kt with gusts up to 25 kt.
Fri..SW winds 5 to 15 kt.
Sat..W winds 5 to 15 kt.
PZZ500 214 Am Pdt Tue Apr 24 2018
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Generally light onshore winds through the work week, with locally breezy to gusty winds near coastal gaps or prominent points such as the golden gate bridge and point sur. Light to moderate seas will prevail through the forecast period with a mixed southerly and northwesterly swell developing late this week.

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 241025
afdsto
area forecast discussion
national weather service sacramento ca
325 am pdt Tue apr 24 2018

Synopsis
Mainly dry and warm this week except for a chance of a few showers
or thunderstorms over the mountains each day.

Discussion
Mostly clear skies across interior norcal early this morning.

Current temperatures range from the 30s in the mountain valleys to
the 50s to lower 60s in the central valley.

Ridge of high pressure will shift slightly eastward the next few
days as a large scale upper level trough edges closer to the
coast. This trough will bring enough instability for a few
afternoon and early evening showers and thunderstorms along the
sierra crest. Warm weather will continue with above average
temperatures, then readings will start a gradual cool down across
the forecast area Thursday.

Still some uncertainty on where the low will move ashore late in
the week. However, the cool down will accelerate Friday with a
chance of showers and thunderstorms mainly across the mountains.

.Extended discussion (Saturday through Tuesday)
extended models consistent in idea of large upper low over the
western u.S but differ on details. Either GFS or ECMWF would
indicate a threat of showers over most of the forecast area
especially during the afternoon hours. Stability progs indicate
some instability over the northern mountains and sierra cascade
crest on Saturday so limited thunderstorm threat to these areas.

Instability spreads westward on Sunday so may see some isolated
thunderstorms dropping down into the northern and central
sacramento valley. Cloud cover and cooler airmass associated with
the low will bring cooler temperatures over the weekend down to a
little below normal for this time of year. Models diverge early
next week so confidence in forecast lowers but keeping a threat of
showers over the sierra cascade range. Upper low should begin to
shift inland by next Tuesday whichever model verifies making
Tuesday the last day of any shower or t-storm threat before upper
ridging builds over the west coast the middle of next week.

Daytime highs start a warming trend with a slight warm up to near
normal on Monday then climb to several degrees above normal on
Tuesday as upper ridging starts to build in. At this point the
second half of next week looks dry.

Aviation
Vfr conditions at the TAF sites the next 24 hours. Isolated
thunderstorms possible northern sierra this afternoon. Winds
generally 10 kts or less.

Sto watches warnings advisories None.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MZXC1 - 9415102 - Martinez-Amorco CA 1 mi51 min WSW 13 G 18 53°F 61°F1015.3 hPa53°F
PCOC1 - 9415144 - Port Chicago, CA 6 mi51 min WSW 14 G 19 54°F 62°F1014.7 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 6 mi57 min W 6 G 8 55°F 1015.2 hPa
SFXC1 - San Francisco Bay Reserve, CA 13 mi96 min W 7 52°F 1014 hPa51°F
PPXC1 - 9414847 - Richmond (Point Potrero), CA 14 mi57 min SSW 4.1 G 6 54°F 1015.9 hPa
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 14 mi57 min WNW 15 G 21 55°F 1013.8 hPa
RCMC1 - 9414863 - Richmond, CA 16 mi51 min SSW 4.1 G 6 53°F 58°F1015.4 hPa
TIBC1 - Tiburon Pier, San Francisco Bay, CA 18 mi58 min Calm 52°F 1016 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 18 mi51 min WSW 4.1 G 5.1
OKXC1 - 9414776 - Oakland (Berth 34), CA 18 mi51 min WNW 4.1 G 6 54°F 1015.7 hPa
LNDC1 18 mi51 min WSW 5.1 G 6 54°F 1015.6 hPa
OBXC1 19 mi51 min 54°F 52°F
PXSC1 20 mi51 min 54°F 52°F
AAMC1 - 9414750 - Alameda, CA 20 mi51 min WNW 4.1 G 6 53°F 63°F1015.8 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 21 mi51 min WSW 5.1 G 7 53°F 1014.6 hPa
FTPC1 - 9414290 - San Francisco, CA 23 mi51 min W 1 G 6 52°F 55°F1015.9 hPa
46237 - San Francisco Bar, CA (142) 31 mi51 min 54°F4 ft
RTYC1 - 9414523 - Redwood City, CA 36 mi51 min NNW 2.9 G 4.1 55°F 66°F1015.9 hPa
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 41 mi91 min W 1.9 G 5.8 51°F 53°F4 ft1015.8 hPa (-1.1)
PRYC1 - 9415020 - Point Reyes, CA 44 mi51 min Calm G 2.9 57°F1015.2 hPa

Wind History for Martinez-Amorco Pier, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Concord, Buchanan Field, CA6 mi28 minW 58.00 miFair53°F48°F86%1013.7 hPa
Napa, Napa County Airport, CA14 mi27 minW 69.00 miOvercast0°F0°F%1014.8 hPa
Fairfield / Travis Air Force Base, CA21 mi83 minSW 1610.00 miFair52°F49°F90%1013.8 hPa
Novato / Gnoss Field, CA23 mi46 minN 010.00 miOvercast50°F48°F94%1015.6 hPa
Oakland, Metro Oakland International Airport, CA23 mi28 minNNW 38.00 miOvercast54°F51°F90%1015.5 hPa

Wind History from CCR (wind in knots)
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Last 24hrSE3S4S3CalmNE5E6E4N56Calm3N5NW7W9N7W13W5W4S5S4S3W4W5W5
1 day agoE4SW4CalmCalm34CalmN8344N5NW6NW7NW3CalmCalmS4S4CalmCalmCalmCalmCalm
2 days agoCalmS3Calm3Calm3NE44NW33N3W6W7NW7N6CalmS4CalmNW3CalmN4CalmCalmNW5

Tide / Current Tables for Suisun Point, Carquinez Strait, California
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Suisun Point
Click for Map
Tue -- 03:32 AM PDT     Moonset
Tue -- 03:54 AM PDT     1.54 feet Low Tide
Tue -- 06:20 AM PDT     Sunrise
Tue -- 09:36 AM PDT     4.37 feet High Tide
Tue -- 02:29 PM PDT     Moonrise
Tue -- 04:46 PM PDT     -0.27 feet Low Tide
Tue -- 07:53 PM PDT     Sunset
Tue -- 11:16 PM PDT     4.70 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.832.31.71.51.82.53.33.94.34.33.93.22.21.30.5-0.1-0.30.21.12.23.34.24.7

Tide / Current Tables for Carquinez Strait, California Current
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Carquinez Strait
Click for Map
Tue -- 12:19 AM PDT     -0.00 knots Slack
Tue -- 03:14 AM PDT     -1.77 knots Max Ebb
Tue -- 03:32 AM PDT     Moonset
Tue -- 05:42 AM PDT     0.00 knots Slack
Tue -- 06:21 AM PDT     Sunrise
Tue -- 08:19 AM PDT     1.71 knots Max Flood
Tue -- 11:14 AM PDT     -0.00 knots Slack
Tue -- 02:29 PM PDT     Moonrise
Tue -- 03:07 PM PDT     -2.64 knots Max Ebb
Tue -- 06:34 PM PDT     0.00 knots Slack
Tue -- 07:53 PM PDT     Sunset
Tue -- 10:06 PM PDT     2.34 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.3-0.7-1.4-1.8-1.6-0.80.31.31.71.61.10.3-0.9-1.8-2.4-2.6-2.5-1.8-0.70.51.52.12.32.1

Weather Map and Satellite Images
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wmap_P
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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Sacramento, CA (8,2,3,4)
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Ground Weather Radar Station Sacramento, 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.