Saturday, May27, 2017 L-36.com


Marine Weather and Tides
Boulder Creek, 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 5:49AMSunset 8:21PM Saturday May 27, 2017 10:29 AM PDT (17:29 UTC) Moonrise 6:56AMMoonset 9:34PM Illumination 5% Phase: Waxing Crescent; Moon at 2 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- 915 Am Pdt Sat May 27 2017
.small craft advisory in effect from Sunday morning through late Sunday night...
Today..NW winds 5 to 15 kt. Wind waves 1 to 3 ft...becoming 3 to 4 ft in the afternoon. NW swell 3 to 4 ft at 9 seconds.
Tonight..NW winds 10 to 20 kt. Wind waves 2 to 4 ft. NW swell 3 ft at 11 seconds.
Sun..NW winds 5 to 15 kt...increasing to 15 to 25 kt by the afternoon. Wind waves 1 to 3 ft...increasing to 4 to 6 ft in the afternoon. NW swell 3 ft at 11 seconds.
Sun night..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. NW swell 3 ft at 11 seconds.
Memorial day..NW winds 20 to 30 kt. Wind waves 4 to 6 ft. NW swell 3 ft at 10 seconds.
Tue..NW winds 10 to 20 kt. Wind waves 2 to 4 ft. NW swell 3 ft.
Wed..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 3 ft.
PZZ500 915 Am Pdt Sat May 27 2017
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Light west winds this morning will increase and become northwest through the afternoon and continue through the memorial day weekend. The swell train will be generally 5 foot or less through the forecast period so wind waves will dominate the sea state.

7 Day Forecast for Marine Location Near Boulder Creek, CA
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location: 37.13, -122.29     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 271622
afdmtr
area forecast discussion
national weather service san francisco bay area
922 am pdt Sat may 27 2017

Synopsis Dry with seasonable temperatures expected for much of
the holiday weekend. The next trough and associated cooling trend
arrives Tuesday and Wednesday with long range trends indicating a
dry and benign weather pattern.

Discussion As of 9:21 am pdt Saturday... Satellite imagery
shows low clouds along the coast, but some clearing has occurred
over santa cruz county as well as coastal monterey county south of
the monterey peninsula. Expect warmer temperatures today across
the district mainly because of additional sunshine compared to the
cloudy conditions we saw on Friday. Highs today are forecast to
be in the 60s and 70s, with warmest inland areas possibly getting
into the lower 80s. Additional warming is expected through the
remainder of the holiday weekend as an upper ridge moves across
the state.

High pressure aloft will gradually weaken as an upper level
trough approaches the coast by Tuesday. This will bring cooler
temperatures to the area from Tuesday through Thursday with
increased marine clouds and onshore flow. High pressure aloft to
rebuild slightly by the end of the week for warmer temperatures.

Aviation As of 4:45 am pdt Saturday... Stratus deck retreated
offshore late last evening and has slowly been building back
towards the coast over the last few hours. A mixed bag ofVFR to
MVFR CIGS currently, but expect to see deteriorating ceilings up
to and around sunrise, then persist around those levels for around
an hour or two into the morning. Otherwise, light winds today,
with some breezy west winds along the immediate coastline by the
afternoon. For tonight, subsidence aloft will contribute to a
compressed marine layer, reducing the inland intrusion extent,
but bringing much lower lifr to ifr cigs. In addition, onshore
winds increase tomorrow.

Vicinity of ksfo... Stratus deck expanding and thickening during
the pre dawn hours. CurrentlyVFR but would not be surprised to
see MVFR by 12-13z... Persisting into or just beyond sunrise. Low
confidence due to discontinuity of marine layer and lack of
persistence guidance.

Sfo bridge approach... Similar to ksfo.

Monterey bay terminals... Patchy CIGS in the predawn hours will
become increasingly lower and more widespread as additional
moisture is advected onshore. MVFR CIGS by sunrise, which will
linger into the mid morning. Model guidance is sketchy on a return
time of stratus for later today, with a return possible as early
as 01z. Light onshore winds.

Marine As of 9:15 am pdt Saturday... Light west winds this
morning will increase and become northwest through the afternoon
and continue through the memorial day weekend. The swell train
will be generally 5 feet or less through the forecast period so
wind waves will dominate the sea state.

Mtr watches warnings advisories
Tday Sca... Pt pinos to pt piedras blancas 0-10 nm from 3 pm
sca... Mry bay from 3 pm
public forecast: sims
aviation: drp
marine: rowe
visit us at

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46042 - MONTEREY - 27NM West of Monterey Bay, CA 25 mi40 min 56°F 57°F4 ft1020.1 hPa (+1.6)
RTYC1 - 9414523 - Redwood City, CA 26 mi42 min N 1.9 G 4.1 59°F 66°F1019.2 hPa
46114 - West Monterey Bay, CA 28 mi30 min 58°F4 ft
46012 - HALF MOON BAY - 24NM South Southwest of San Francisco, CA 35 mi40 min SSW 3.9 G 3.9 55°F 55°F5 ft1019.9 hPa (+1.5)
ELXC1 - Elkhorn Slough Reserve, CA 36 mi105 min W 1.9 56°F 1019 hPa52°F
46240 - Cabrillo Point, Monterey Bay, CA (158) 40 mi39 min 55°F2 ft
MEYC1 42 mi54 min NNW 4.1 G 5.1 55°F 55°F1020.2 hPa
AAMC1 - 9414750 - Alameda, CA 44 mi42 min SW 8 G 9.9 56°F 62°F1020.4 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 46 mi42 min E 2.9 G 9.9 55°F 1018.9 hPa
LNDC1 46 mi42 min SW 7 G 9.9 56°F 1019.8 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 46 mi42 min SW 7 G 12
OBXC1 47 mi42 min 56°F 49°F
PXSC1 47 mi42 min 56°F 48°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 47 mi42 min SW 7 G 11 56°F 1019.9 hPa
FTPC1 - 9414290 - San Francisco, CA 48 mi42 min WSW 7 G 8.9 54°F 58°F1020.2 hPa
46237 - San Francisco Bar, CA (142) 49 mi60 min 56°F3 ft

Wind History for Redwood City, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Mountain View, Moffett Field, CA24 mi34 minENE 610.00 miOvercast62°F48°F62%1020 hPa

Wind History from NUQ (wind in knots)
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Last 24hrSE8SE84S6SE5SE6N7NW8NW7NW7NW6N7N7N6CalmN3NW3CalmNW3W4W5NW3N3NE6
1 day agoSE11
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SW8S5SW865SE6SE4CalmS4S4S5SE6S4SE3SE4S54
2 days ago3N8N10N11N10N14N14N11N11NE11E7SE9SE7SE4CalmSE4SW3SE7
G15
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Tide / Current Tables for Ano Nuevo Island, California
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Ano Nuevo Island
Click for Map
Sat -- 05:52 AM PDT     Sunrise
Sat -- 06:18 AM PDT     -1.90 feet Low Tide
Sat -- 07:57 AM PDT     Moonrise
Sat -- 01:13 PM PDT     4.33 feet High Tide
Sat -- 06:16 PM PDT     2.10 feet Low Tide
Sat -- 08:20 PM PDT     Sunset
Sat -- 10:34 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.853.51.7-0-1.3-1.9-1.7-0.90.21.52.83.84.34.23.732.42.12.22.93.74.75.4

Tide / Current Tables for Santa Cruz, California
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Santa Cruz
Click for Map
Sat -- 05:52 AM PDT     Sunrise
Sat -- 06:12 AM PDT     -1.71 feet Low Tide
Sat -- 07:56 AM PDT     Moonrise
Sat -- 01:33 PM PDT     4.42 feet High Tide
Sat -- 06:06 PM PDT     2.40 feet Low Tide
Sat -- 08:18 PM PDT     Sunset
Sat -- 10:32 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
65.23.71.90.1-1.2-1.7-1.5-0.80.31.62.83.84.34.43.93.32.72.42.63.13.94.85.5

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.