Sunday, December8, 2019
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Marine Weather and Tides
Ladera, CA

Version 3.4
NOTICE
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 7:09AMSunset 4:52PM Sunday December 8, 2019 6:12 AM PST (14:12 UTC) Moonrise 2:58PMMoonset 3:30AM Illumination 88% 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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PZZ530 San Pablo Bay, Suisun Bay, The West Delta And The San Francisco Bay North Of The Bay Bridge- 158 Am Pst Sun Dec 8 2019
Today..SW winds up to 10 kt. A chance of rain this morning.
Tonight..N winds around 5 kt.
Mon..NW winds around 5 kt. Patchy fog.
Mon night..W winds up to 10 kt.
Tue..NE winds up to 10 kt.
Tue night..NE winds up to 10 kt.
Wed..NE winds around 5 kt.
Thu..NE winds around 5 kt.
PZZ500 158 Am Pst Sun Dec 8 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... South to southwest winds will continue to diminish overnight before turning back out of the northwest by this afternoon. Generally light to moderate winds will then persist through much of the week as high pressure builds in over the region. A weak system will move through early to mid next week bringing back southerly winds to the waters along with the return of rain showers. Wind waves will also ease overnight as winds diminish. A moderate west swell will continue through today before a northwest swell arrives on Monday and gradually builds throughout the coming week.


7 Day Forecast for Marine Location Near Ladera, CA
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location: 37.4, -122.21     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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FXUS66 KMTR 081134 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 334 AM PST Sun Dec 8 2019

SYNOPSIS. Scattered showers will continue into this morning, ending from north to south on during the afternoon. Dry conditions are then forecast for most of next week, except for light rain chances late Tuesday and Tuesday night and then again late in the week. Temperatures will be near seasonal averages through next week.

DISCUSSION. As of 2:41 AM PST Sunday . KMUX radar scans continue to show scattered showers moving across the area, although they are decreasing in intensity and coverage. Hourly precip totals are mainly in the Santa Clara County and East Bay, where up to 0.12" have fallen. This shower activity will continue to diminish today, although the coastal mountains in Monterey and Santa Cruz county could see over a half inch of rain today in passing showers.

Dry weather is expected beginning on Monday as an upper level ridge builds back in over California. A weak trough is forecast to move across Northern California late Tuesday into Wednesday. Light rain could reach as far south as the Monterey Bay by Wednesday morning, but rain chances will be greatest the farther north you go. Another system moving across by next weekend could bring another shot of rain, but again this system looks to impact mainly far northern California. Otherwise, seasonably mild temperatures are expected.

AVIATION. as of 03:34 AM PST Sunday . For 12z tafs. MVFR conditions prevailing with occasionally reduced vis/cigs to IFR during passing heavier showers. Current observations show cigs between 2,000 and 5,000 ft AGL. BKN cigs expected to lift this afternoon, but SCT lower clouds may persist. Guidance shows low clouds re-developing again this evening. Showers will continue this morning before tapering off this afternoon and evening. Generally light winds this morning becoming onshore 10-15 kt this afternoon.

Vicinity of KSFO . MVFR conditions with passing showers. Cigs expected to lift this afternoon, but SCT lower clouds may continue into this evening. Lowering cigs forecast to return overnight. S/SW winds this morning shifting W late this morning/early this afternoon.

SFO Bridge Approach . Similar to KSFO.

Monterey Bay Terminals . VFR-MVFR conditions with showers. Cigs/vis may temporarily lower during heavier showers this morning before tapering off this afternoon/evening. Lowering cigs again this evening and overnight. Southerly winds this morning shifting to the W/NW by this afternoon.

MARINE. as of 1:58 AM PST Sunday . South to southwest winds will continue to diminish overnight before turning back out of the northwest by this afternoon. Generally light to moderate winds will then persist through much of the week as high pressure builds in over the region. A weak system will move through early to mid next week bringing back southerly winds to the waters along with the return of rain showers. Wind waves will also ease overnight as winds diminish. A moderate west swell will continue through today before a northwest swell arrives on Monday and gradually builds throughout the coming week.

MTR WATCHES/WARNINGS/ADVISORIES. Tday. None.

PUBLIC FORECAST: Sims AVIATION: AS MARINE: AS

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RTYC1 - 9414523 - Redwood City, CA 7 mi73 min NNW 1.9 G 2.9 55°F 56°F1015.1 hPa (+0.0)
AAMC1 - 9414750 - Alameda, CA 26 mi73 min ESE 1 G 1.9 55°F 54°F1014.8 hPa (+0.0)
LNDC1 28 mi73 min SE 2.9 G 2.9 56°F 1014.5 hPa (+0.0)
OBXC1 29 mi73 min 55°F 55°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 29 mi73 min W 4.1 G 7 56°F 1013.5 hPa (+0.0)
OKXC1 - 9414776 - Oakland (Berth 34), CA 29 mi73 min NNW 1.9 G 1.9 55°F 1014.6 hPa (+0.0)
FTPC1 - 9414290 - San Francisco, CA 31 mi73 min SW 4.1 G 7 55°F 54°F1014.8 hPa (+0.0)
46237 - San Francisco Bar, CA (142) 35 mi73 min 54°F7 ft
46012 - HALF MOON BAY - 24NM South Southwest of San Francisco, CA 36 mi43 min WSW 9.7 G 14 56°F 56°F54°F
TIBC1 - Tiburon Pier, San Francisco Bay, CA 36 mi74 min S 2.9 54°F 1014 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 36 mi73 min S 8 G 8 56°F 1014.7 hPa (+0.0)
RCMC1 - 9414863 - Richmond, CA 38 mi73 min SSE 2.9 G 4.1 55°F 54°F1013.9 hPa (+0.0)
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 41 mi43 min WSW 9.7 G 14 55°F 56°F1015.1 hPa
UPBC1 44 mi73 min SW 5.1 G 6
MZXC1 - 9415102 - Martinez-Amorco CA 44 mi73 min S 2.9 G 2.9 55°F 54°F1014.4 hPa (+0.0)
46042 - MONTEREY - 27NM West of Monterey Bay, CA 44 mi43 min SW 7.8 G 9.7 57°F 57°F1015.4 hPa56°F
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 45 mi73 min SSW 4.1 G 5.1 55°F 1014 hPa (+0.0)
PCOC1 - 9415144 - Port Chicago, CA 46 mi73 min S 4.1 G 6 55°F 53°F1014.1 hPa (+0.0)
46092 - MBM1 46 mi66 min SW 9.7 57°F 57°F1014.6 hPa (+0.0)
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 47 mi73 min SSE 2.9 G 2.9 53°F 1014.4 hPa (+0.0)
46114 - West Monterey Bay, CA 47 mi103 min 57°F8 ft
MLSC1 - Moss Landing, South Harbor, CA 47 mi114 min SW 11 G 28 57°F 1015.5 hPa56°F
ELXC1 - Elkhorn Slough Reserve, CA 48 mi88 min NNE 4.1 56°F 1015 hPa56°F

Wind History for Redwood City, CA
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Jose, San Jose International Airport, CA15 mi80 minN 08.00 miLight Rain54°F53°F97%1014.6 hPa
San Francisco, San Francisco International Airport, CA17 mi77 minSSW 39.00 miMostly Cloudy55°F52°F90%1014.4 hPa
Half Moon Bay Airport, CA17 mi78 minN 06.00 miFog/Mist55°F53°F94%1014.9 hPa
Hayward, Hayward Air Terminal, CA19 mi79 minS 43.00 miRain Fog/Mist55°F54°F96%1015.4 hPa
Oakland, Metro Oakland International Airport, CA21 mi80 minN 010.00 miOvercast56°F55°F97%1014.7 hPa

Link to 5 minute data for KPAO

Wind History from PAO (wind in knots)
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Last 24hr------------------S10SE12SE11SE14SE14SE14S11S11
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1 day ago------------------SE7SE10SE9SE12SE9----S15
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2 days ago------------------CalmCalmCalmCalm4Calm33Calm3--NW4NW5NW4Calm

Tide / Current Tables for Redwood City, Wharf 5, San Francisco Bay, California (sub)
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


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
Click for Map
Sun -- 01:59 AM PST     -0.71 knots Max Ebb
Sun -- 03:30 AM PST     Moonset
Sun -- 04:19 AM PST     0.00 knots Slack
Sun -- 06:57 AM PST     1.07 knots Max Flood
Sun -- 07:10 AM PST     Sunrise
Sun -- 09:58 AM PST     -0.01 knots Slack
Sun -- 02:26 PM PST     -1.15 knots Max Ebb
Sun -- 02:56 PM PST     Moonrise
Sun -- 04:49 PM PST     Sunset
Sun -- 05:16 PM PST     0.00 knots Slack
Sun -- 07:54 PM PST     1.15 knots Max Flood
Sun -- 11:00 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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-0.5-0.7-0.7-0.5-0.20.40.91.10.90.6-0-0.4-0.8-1-1.1-1.1-0.8-0.20.511.210.60

Weather Map
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wmap_P
GEOS 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 San Francisco/Monterey Bay Area, CA (9,2,3,4)
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Ground Weather Radar Station San Francisco Bay Area, CA
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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.