Monday, June18, 2018 L-36.com


Marine Weather and Tides
Los Altos Hills, CA

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 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.

Sunrise 5:46AMSunset 8:33PM Monday June 18, 2018 12:09 AM PDT (07:09 UTC) Moonrise 10:19AMMoonset 11:52PM Illumination 24% Phase: Waxing Crescent; Moon at 5 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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PZZ560 Pigeon Point To Point Pinos To 10 Nm- 912 Pm Pdt Sun Jun 17 2018
Tonight..S winds 5 to 15 kt. Wind waves 1 to 3 ft. Mixed swell nw 4 to 5 ft at 10 seconds and sw 3 ft at 16 seconds.
Mon..W winds 5 to 15 kt. Wind waves 1 to 3 ft. Mixed swell nw 3 to 5 ft at 9 seconds and sw 3 ft at 14 seconds.
Mon night..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. Mixed swell nw 3 to 4 ft at 13 seconds and sw 3 ft at 15 seconds.
Tue..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. Mixed swell nw 3 to 4 ft at 12 seconds and sw 3 ft at 14 seconds.
Tue night..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. Mixed swell nw 3 to 5 ft at 12 seconds and S 3 ft at 14 seconds.
Wed..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 3 to 5 ft.
Thu..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 4 to 6 ft.
Fri..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. W swell 5 to 6 ft.
PZZ500 912 Pm Pdt Sun Jun 17 2018
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Mainly southerly winds will continue across the near shore waters overnight. More typical nw winds will return to the coastal waters early this week over generally light seas.

7 Day Forecast for Marine Location Near Los Altos Hills, CA
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location: 37.35, -122.18     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 180539
afdmtr
area forecast discussion
national weather service san francisco bay area
1039 pm pdt Sun jun 17 2018

Synopsis A low pressure trough over the west will provide
cool temperatures today, especially inland areas which are
expected to remain much cooler than normal. A warming trend is
forecast to begin on Monday and continue through much of the week
as high pressure builds over california.

Discussion As of 7:53 pm pdt Sunday... It's a fairly tranquil
evening for father's day most places having much less wind and
more in the way of clear skies. It's a bit hazy right on the coast,
inland visibilities are good. The onshore pressure gradient is
lower this evening at 1.8 mb from sfo to sac. Cool air advection
with an upper level trough has mostly mixed out the marine layer
temperature inversion, but redevelopment of the marine layer
inversion is expected to return late tonight through Monday as
lower level warming develops prior to the arrival of an eastern
pacific mid to upper level ridge on Tuesday. Warming of daytime
temperatures is forecast for this week, becoming above normal by
late week.

Aviation As of 10:39 pm pdt Sunday... For 06z tafs. Marine
inversion layer is slowly reforming with stratus starting to hug
the coastline. Initial obs show a 300 foot deck at half moon bay
and 700 feet at watsonville but expect those levels to rise
slightly by morning given the deeper inversion layer. Major
terminals all expected to develop CIGS after midnight and stay in
place at least through 18z Monday before mixing out.

Moderate confidence.

Vicinity of ksfo... Winds turning more westerly should allow more
typical stratus formation overnight into Monday morning. Inversion
layer should keep CIGS closer to 2000 feet but initial obs may
come in lower. Expect visuals between 17-18z Monday.

Sfo bridge approach... CIGS should form before 11z and last through
about 1730z for the approach.

Monterey bay terminals... CIGS forming overnight should mix out
around 18z Monday.

Marine As of 10:31 pm pdt Sunday... Mainly southerly winds will
continue across the near shore waters overnight. More typical nw
winds will return to the coastal waters early this week over
generally light seas.

Mtr watches warnings advisories
Tngt None.

Public forecast: canepa
aviation: rww
marine: rww
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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RTYC1 - 9414523 - Redwood City, CA 11 mi51 min W 1.9 G 2.9 59°F 70°F1016.3 hPa
AAMC1 - 9414750 - Alameda, CA 30 mi57 min W 8.9 G 12 59°F 68°F1016.3 hPa
LNDC1 31 mi51 min WNW 5.1 G 8 58°F 1016.2 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 32 mi51 min WSW 12 G 14
OBXC1 33 mi51 min 59°F 56°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 33 mi51 min W 8.9 G 11 58°F 1016.2 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 33 mi51 min WSW 8 G 12 57°F 1015 hPa
PXSC1 33 mi51 min 58°F 56°F
FTPC1 - 9414290 - San Francisco, CA 35 mi57 min W 5.1 G 9.9 56°F 57°F1016.5 hPa
46012 - HALF MOON BAY - 24NM South Southwest of San Francisco, CA 37 mi79 min SSW 3.9 G 5.8 55°F 53°F6 ft1016 hPa (+1.6)
46237 - San Francisco Bar, CA (142) 39 mi69 min 55°F4 ft
PPXC1 - 9414847 - Richmond (Point Potrero), CA 40 mi51 min W 5.1 G 7 60°F 1016.3 hPa
TIBC1 - Tiburon Pier, San Francisco Bay, CA 40 mi52 min SW 9.9 56°F 1016 hPa
46042 - MONTEREY - 27NM West of Monterey Bay, CA 41 mi79 min S 3.9 G 3.9 58°F 57°F6 ft1016.2 hPa (+1.8)
RCMC1 - 9414863 - Richmond, CA 41 mi57 min W 1.9 G 7 58°F 60°F1015.9 hPa
46092 - MBM1 42 mi65 min WSW 5.8 57°F 56°F1016.8 hPa (+2.2)
ELXC1 - Elkhorn Slough Reserve, CA 44 mi84 min NW 6 56°F 1017 hPa55°F
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 45 mi49 min SSW 3.9 G 5.8 54°F 53°F1016.8 hPa54°F
MZXC1 - 9415102 - Martinez-Amorco CA 47 mi51 min WSW 12 G 13 60°F 67°F1015.4 hPa58°F
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 49 mi51 min WNW 11 G 14 60°F 1015.3 hPa
PCOC1 - 9415144 - Port Chicago, CA 49 mi51 min WSW 8.9 G 13 59°F 68°F1015.1 hPa

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
Mountain View, Moffett Field, CA9 mi73 minN 710.00 miFair62°F55°F78%1016.2 hPa
Palo Alto Airport, CA10 mi3.4 hrsNW 1010.00 miClear64°F53°F68%1014.2 hPa
San Carlos Airport, CA13 mi69 minW 310.00 miFair59°F51°F77%1015.9 hPa
San Jose, San Jose International Airport, CA13 mi76 minNW 610.00 miA Few Clouds62°F54°F75%1015.8 hPa
San Jose / Reid / Hillv, CA19 mi2.4 hrsNW 710.00 miClear64°F53°F68%1014.2 hPa
Half Moon Bay Airport, CA20 mi74 minS 54.00 miFog/Mist55°F53°F94%1016.9 hPa
San Francisco, San Francisco International Airport, CA21 mi73 minWSW 810.00 miA Few Clouds61°F51°F70%1015.7 hPa
Hayward, Hayward Air Terminal, CA22 mi75 minNW 69.00 miMostly Cloudy60°F54°F80%1016.7 hPa
Oakland, Metro Oakland International Airport, CA24 mi76 minWNW 1010.00 miA Few Clouds58°F55°F90%1016 hPa

Wind History from NUQ (wind in knots)
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Last 24hrW9W3SE5SE4SE5SE7SE76SE9S75S6Calm4N8N10N13N12N13N10N8N7N7NE7
1 day agoS5SE6SE4SE74SE564SE6SE10SE8SE11SE8SE12N11--SE10S7S10
G16
SE7S6SE3SE4Calm
2 days agoSE5SE4SE4S4SE4SE4SE6SE63CalmN5NW7NW7NW9NW14
G18
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NW7NW7NW6NW5NW4E5SE6E3

Tide / Current Tables for Palo Alto Yacht Harbor, California
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Palo Alto Yacht Harbor
Click for Map
Mon -- 12:12 AM PDT     Moonset
Mon -- 04:49 AM PDT     8.36 feet High Tide
Mon -- 05:47 AM PDT     Sunrise
Mon -- 11:18 AM PDT     Moonrise
Mon -- 12:08 PM PDT     -0.70 feet Low Tide
Mon -- 06:10 PM PDT     7.55 feet High Tide
Mon -- 08:32 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.83.44.86.688.37.66.14.32.51-0.2-0.7-0.31.13.25.36.97.57.36.65.64.63.6

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
Mon -- 12:12 AM PDT     Moonset
Mon -- 01:58 AM PDT     1.02 knots Max Flood
Mon -- 04:46 AM PDT     -0.00 knots Slack
Mon -- 05:47 AM PDT     Sunrise
Mon -- 09:31 AM PDT     -1.41 knots Max Ebb
Mon -- 11:18 AM PDT     Moonrise
Mon -- 12:13 PM PDT     0.00 knots Slack
Mon -- 03:03 PM PDT     1.53 knots Max Flood
Mon -- 06:31 PM PDT     -0.00 knots Slack
Mon -- 08:31 PM PDT     Sunset
Mon -- 10:21 PM PDT     -0.80 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.30.810.90.4-0.1-0.5-0.9-1.2-1.4-1.3-0.9-0.20.61.31.51.410.4-0.2-0.5-0.7-0.8-0.7

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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for San Francisco/Monterey Bay Area, CA (3,6,7,8)
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Ground Weather Radar Station San Francisco Bay Area, 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.