Friday, June23, 2017 L-36.com


Marine Weather and Tides
Stanford, CA

Version 3.4
What's New / NOTES
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 5:47AMSunset 8:35PM Friday June 23, 2017 10:06 AM PDT (17:06 UTC) Moonrise 4:36AMMoonset 7:14PM Illumination 0% Phase: New Moon; 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- 831 Am Pdt Fri Jun 23 2017
.small craft advisory in effect through this evening...
Today..SW winds 15 to 25 kt.
Tonight..SW winds 15 to 25 kt. Patchy fog after midnight.
Sat..SW winds 15 to 25 kt. Patchy fog in the morning.
Sat night..SW winds 15 to 25 kt.
Sun..SW winds 15 to 25 kt.
Mon..SW winds 10 to 20 kt.
Tue..SW winds 5 to 15 kt.
PZZ500 831 Am Pdt Fri Jun 23 2017
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Generally light southerly winds over the coastal waters today. Onshore winds will be breezy through the golden gate gap and across the northern san francisco bay. Northwest winds return this weekend. Generally decreasing seas through the coming days.

7 Day Forecast for Marine Location Near Stanford, CA
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location: 37.45, -122.17     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 231519
afdmtr
area forecast discussion
national weather service san francisco bay area
819 am pdt Fri jun 23 2017

Synopsis Cooling trend starts today for most areas as onshore
flow returns. The far interior valleys will remain seasonably
warm through this evening. The overall trend this weekend and into
next week will be a return to more seasonable temperatures along
with more extensive night and morning low clouds followed by sunny
afternoons.

Discussion As of 08:20 am pdt Friday... Turn on the ac, the
natural ac that is. Morning visible satellite reveals a more
"summer" like pattern with widespread low clouds and patchy fog.

The latest 24 hour trend indicates much cooler conditions this
morning. For instance, livermore is currently 14 degrees colder
than yesterday at this time. The cooling is likely attributed to
the increase marine layer and a breaking down of the strong high
pressure. The cooler temps can also be found in the hills as well,
but thermal belts are still active with temps in the 70s and low
80s.

For today... Much needed relief for the entire region. Will keep
heat advisories going through this evening as far interior
locations will still exceed 90 degrees despite the cooling trend.

No update planned at this time.

Prev discussion As of 3:34 am pdt Friday...

looking at the 06z NAM graphical and MOS output numbers confidence
is growing that the overall trend this weekend will be continued
cooling back to or even slightly below normal by Sunday afternoon.

In general it looks like a more normal summer time weather
pattern this weekend across the bay area with night and morning
low clouds pulling back to the coast and followed by clear and
warm afternoons.

Latest ECMWF keeps a zonal or slightly cyclonic flow aloft off the
coast for next week implying near normal temperatures with dry
weather forecast. Longer range solutions later next week or
towards the end of the month show more pronounced ridging with
potential for another round of weak offshore flow and associated
warming.

Aviation As of 4:55 am pdt Friday... For 12z tafs. Compressed
but relatively deeper marine layer offshore pushing further
inland this morning bringing vlifr-ifr CIGS to low lying areas
along the coast this morning. Expect to see further expansion of
marine stratus low clouds through the early morning hours before
retreating in the 17z hour. Winds generally light today, except
breezy onshore winds through coastal gaps, including near ksfo, by
this afternoon and evening.

Vicinity of ksfo... Stratus in the bay area will need to wrap
clockwise around the bay before reaching ksfo. More likely to see
low clouds near the bridge ksmb rather than the tower ksfo this
morning. Low confidence this morning with forecast counting on
vfr conditions at ksfo but possible impacts near bridge.

Sfo bridge approach... Similar to ksfo with higher chance of lifr-
ifr CIGS at bridge versus tower.

Monterey bay terminals... Vlifr to ifr CIGS through 17z hour. Early
return of low clouds stratus tonight. Generally light winds.

Marine As of 04:43 am pdt Friday... Generally light southerly
winds over the coastal waters today. Onshore winds increase later
today and tonight through coastal gaps such as the golden gate
gap and across the northern san francisco bay. Northwest winds
return this weekend. Generally decreasing seas through the coming
days.

Mtr watches warnings advisories
Tday Heat advisory... Caz510-511-517-518
sca... Sf bay from 2 pm
public forecast: mm rww
aviation: drp
marine: drp
visit us at

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RTYC1 - 9414523 - Redwood City, CA 5 mi55 min NNW 2.9 G 5.1 63°F 74°F1012.4 hPa
AAMC1 - 9414750 - Alameda, CA 23 mi55 min NNW 2.9 G 5.1 63°F 66°F1013.4 hPa
LNDC1 25 mi55 min N 5.1 G 8 61°F 1012.9 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 26 mi61 min W 8.9 G 11
OKXC1 - 9414776 - Oakland (Berth 34), CA 26 mi55 min WNW 7 G 8.9 60°F 1013 hPa
OBXC1 26 mi55 min 59°F 57°F
PXSC1 27 mi55 min 60°F 56°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 27 mi55 min W 6 G 12 61°F 1012 hPa
FTPC1 - 9414290 - San Francisco, CA 29 mi55 min W 6 G 15 56°F 59°F1013.6 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 33 mi55 min SW 8 G 11 60°F 1013.4 hPa
TIBC1 - Tiburon Pier, San Francisco Bay, CA 34 mi55 min N 6 60°F 1013 hPa
46237 - San Francisco Bar, CA (142) 34 mi67 min 56°F5 ft
RCMC1 - 9414863 - Richmond, CA 35 mi55 min W 4.1 G 8 59°F 63°F1013 hPa
46012 - HALF MOON BAY - 24NM South Southwest of San Francisco, CA 38 mi77 min SE 9.7 G 12 55°F 53°F7 ft1012.5 hPa (+1.5)
MZXC1 - 9415102 - Martinez-Amorco CA 40 mi55 min W 15 G 18 64°F 71°F1012.4 hPa59°F
UPBC1 41 mi61 min WNW 15 G 20
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 41 mi77 min SSE 5.8 G 7.8 55°F 55°F5 ft1013.4 hPa (+1.6)
PCOC1 - 9415144 - Port Chicago, CA 42 mi55 min W 20 G 22 64°F 70°F1011.7 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 42 mi55 min WSW 9.9 G 14 62°F 1012.5 hPa
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 43 mi55 min NW 17 G 24 68°F 1010.4 hPa
46042 - MONTEREY - 27NM West of Monterey Bay, CA 48 mi77 min 56°F 56°F7 ft1013 hPa (+1.2)
ELXC1 - Elkhorn Slough Reserve, CA 49 mi82 min N 6 55°F 1012 hPa55°F
46092 - MBM1 49 mi60 min ENE 3.9 54°F 55°F1013.2 hPa (+1.5)

Wind History for Redwood City, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Palo Alto Airport, CA3 mi72 minN 77.00 miMostly Cloudy66°F62°F88%1012.9 hPa
San Carlos Airport, CA7 mi72 minVar 39.00 miOvercast64°F59°F83%1012.9 hPa
Mountain View, Moffett Field, CA7 mi71 minN 410.00 miMostly Cloudy67°F61°F81%1013.2 hPa
San Jose, San Jose International Airport, CA14 mi74 minVar 510.00 miA Few Clouds69°F57°F66%1012.5 hPa
San Francisco, San Francisco International Airport, CA15 mi71 minNNE 310.00 miPartly Cloudy64°F57°F78%1012.7 hPa
Hayward, Hayward Air Terminal, CA15 mi73 minNNW 710.00 miFair68°F54°F61%1013.5 hPa
Oakland, Metro Oakland International Airport, CA17 mi74 minNNW 810.00 miA Few Clouds65°F55°F73%1012.9 hPa
San Jose / Reid / Hillv, CA20 mi80 minVar 510.00 miClear70°F57°F64%1013.2 hPa

Wind History from PAO (wind in knots)
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Last 24hrN8N8NW9NW10NW15N16--NW18--NW10NW15------------------NW6N6N7N8
1 day ago--N5N8NW8NW15NW13--N10N8NW8NW8------------------CalmNW6--N7
2 days ago6NW8N9--NW12N16N17N15N18--NW13------------------N6N6NE6N5

Tide / Current Tables for Palo Alto Yacht Harbor, San Francisco Bay, California
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Palo Alto Yacht Harbor
Click for Map
Fri -- 05:36 AM PDT     Moonrise
Fri -- 05:48 AM PDT     Sunrise
Fri -- 07:46 AM PDT     -1.04 feet Low Tide
Fri -- 01:41 PM PDT     6.59 feet High Tide
Fri -- 07:30 PM PDT     1.48 feet Low Tide
Fri -- 07:32 PM PDT     New Moon
Fri -- 08:13 PM PDT     Moonset
Fri -- 08:33 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
9.28.77.55.73.61.60.1-0.8-1-0.21.43.35.16.36.564.83.42.31.61.73.15.37.6

Tide / Current Tables for Dumbarton Hwy Bridge, South San Francisco Bay, California Current
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Dumbarton Hwy Bridge
Click for Map
Fri -- 12:27 AM PDT     -0.00 knots Slack
Fri -- 04:13 AM PDT     -1.79 knots Max Ebb
Fri -- 05:35 AM PDT     Moonrise
Fri -- 05:48 AM PDT     Sunrise
Fri -- 07:38 AM PDT     0.01 knots Slack
Fri -- 10:52 AM PDT     2.36 knots Max Flood
Fri -- 02:05 PM PDT     -0.00 knots Slack
Fri -- 04:49 PM PDT     -0.91 knots Max Ebb
Fri -- 07:29 PM PDT     0.00 knots Slack
Fri -- 07:32 PM PDT     New Moon
Fri -- 08:13 PM PDT     Moonset
Fri -- 08:33 PM PDT     Sunset
Fri -- 10:34 PM PDT     1.78 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.5-0.3-1-1.5-1.8-1.6-1.2-0.50.41.52.22.421.30.1-0.5-0.8-0.9-0.7-0.30.41.21.71.7

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 (13,3,4,5)
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Ground Weather Radar Station San Francisco Bay Area, 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.