Thursday, January29, 2015 L-36.com


Marine Weather and Tides
Dillon Beach, CA

Version 3.4
What's New / NOTES
1/11/2015 - Updated Marine Zones because NOAA split some zones on the East Coast. You may need to edit or your forecast section. 6/17/2014 - I reported slow load times to NOAA and they quickly resolved the problem. Sorry for any inconvience. NOAA had some stuck processes on two servers. This was a problem on 5 to 10% of the requests.
6/10/2014 - Marine Zones updated. Some zones have changed. Edit your Marine Forecast section to check.

Sunrise 7:16AMSunset 5:30PM Wednesday January 28, 2015 10:13 PM PST (06:13 UTC) Moonrise 12:38PMMoonset 1:58AM 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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PZZ540 Point Arena To Point Reyes To 10 Nm- 858 Pm Pst Wed Jan 28 2015
Tonight..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. W swell 4 to 5 ft at 12 seconds.
Thu..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. W swell 4 to 6 ft at 18 seconds.
Thu night..NW winds 10 to 20 kt. Wind waves 2 to 4 ft. W swell 5 to 7 ft at 17 seconds.
Fri..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. W swell 5 to 7 ft at 16 seconds.
Fri night..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. W swell 7 to 9 ft at 15 seconds.
Sat..NW winds 10 kt. Wind waves 2 ft or less. W swell 6 to 8 ft.
Sun..NW winds 10 kt. Wind waves 2 ft or less. W swell 4 to 6 ft. Slight chance of rain.
Mon..NW winds 10 kt. Wind waves 2 ft or less. W swell 5 to 6 ft. Slight chance of rain.
PZZ500 858 Pm Pst Wed Jan 28 2015
Synopsis for the central california coast and bays including Monterey bay national marine sanctuaries.. NW winds will gradually increase overnight into Thursday. Winds will be strongest Thursday night through early Saturday...especially over the outer waters.

7 Day Forecast for Marine Location Near Dillon Beach, CA
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location: 38.25, -122.98     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 290544
afdmtr
area forecast discussion
national weather service san francisco bay area
944 pm pst Wed jan 28 2015

Synopsis Dry conditions are expected to continue through Sunday
morning... With chances of some light rain then developing over
northern california beginning Sunday afternoon and evening... And
continuing into the first part of next week. By midweek dry
conditions are again projected to prevail across the area.

Temperatures will generally remain above seasonal norms... Warmest
on Saturday.

Discussion As of 9:00 pm pst Wednesday... Split flow over the
area with upper level ridging to the north and troffing to the
south. Our CWA is stuck in the middle under a stagnant pattern
with light winds. As a result little change is expected through
Thursday. The upper trough will develop into a closed low over
southern california on Friday then move into arizona Saturday
while an upper level ridge builds up off the coast behind the
system. Moisture being drawn up by the low will affect the desert
southwest but remain south and east of our district. There will
be an increasing northerly flow aloft along the back side of the
low which could bring winds of 20-30 mph to the north and east bay
hills Friday night through Saturday night. The dry northerly winds
will allow for warmer temperatures along the coastal areas
Saturday and Sunday. Highs this weekend will be in the 60s with
many readings of low to mid 70s near the coast and in the
monterey/san benito county interior.

The ridge will flatten somewhat by late Sunday. Previous models
runs hinted at a slight chance of rain in the north bay by Monday
but the 00z GFS keeps all moisture north of the cwa. So it looks
like the chances of rain for early next week as slim as it is is
diminishing. No chance for rain beyond that as the ridge remains
over the state through at least next Thursday.

Aviation As of 9:44 pm pst Wednesday... For 06z tafs. Expecting
mainly just high clouds overnight into Thursday. For now will show
some possible overnight fog at ksts with medium confidence. In
general look for light winds with just some high clouds the next
24 hours as pattern remains quiet. Developing pattern doesnt look
too favorable for widespread fog.

Vicinity of ksfo...VFR with light winds overnight into Thursday.

Ksfo bridge approach... Similar to ksfo.

Monterey bay area terminals...VFR. Light winds with scattered high clouds.

Marine As of 9:40 pm pst Wednesday... Nw winds will gradually
increase overnight into Thursday. Winds will be strongest Thursday
night through early Saturday... Especially over the outer waters.

Mtr watches/warnings/advisories
Tngt None.

Public forecast: W pi
aviation/marine: rww
visit us at weather.Gov/sanfrancisco
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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46013 - Bodega Bay - 48NM North Northwest of San Francisco, CA 17 mi84 min NW 19 G 23 56°F 57°F7 ft1021.2 hPa (+0.0)
PRYC1 - 9415020 - Point Reyes, CA 18 mi44 min NW 11 G 14 58°F 58°F1021.3 hPa
46214 - Point Reyes, CA (029) 33 mi63 min 57°F7 ft
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 35 mi84 min NW 9.7 G 9.7 56°F 56°F5 ft1022 hPa (+0.0)
46237 - San Francisco Bar, CA (142) 37 mi32 min 56°F5 ft
RCMC1 - 9414863 - Richmond, CA 38 mi44 min ESE 1.9 G 1.9 55°F 55°F1021.2 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 40 mi44 min WSW 2.9 G 5.1 57°F 1021.6 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 40 mi44 min W 1.9 G 1.9 55°F 1021.2 hPa
FTPC1 - 9414290 - San Francisco, CA 41 mi44 min SW 4.1 G 6 55°F 55°F1021.6 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 44 mi44 min Calm G 1 57°F 1020.5 hPa
PXSC1 44 mi44 min 57°F 53°F
OBXC1 46 mi44 min 56°F 53°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 46 mi44 min ESE 1.9 G 1.9 55°F 1021.5 hPa
UPBC1 48 mi44 min WNW 5.1 G 7
MZXC1 - 9415102 - Martinez-Amorco CA 48 mi44 min SW 4.1 G 4.1 53°F 53°F1020.6 hPa49°F
AAMC1 - 9414750 - Alameda, CA 49 mi44 min Calm G 1 55°F 56°F1021.1 hPa
LNDC1 49 mi44 min E 1.9 G 1.9 56°F 1021.4 hPa

Wind History for Point Reyes, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Santa Rosa, Santa Rosa Sonoma County Airport, CA20 mi21 minN 08.00 miFair47°F45°F93%1020.5 hPa
Petaluma Municipal Airport, CA20 mi19 minN 010.00 miFair46°F44°F93%1022.3 hPa
Novato / Gnoss Field, CA24 mi19 minN 010.00 miFair48°F46°F94%1021.7 hPa

Wind History from O69 (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmNW3NW5W6W9NW6W6NW3CalmCalmCalm
1 day agoCalmW4CalmCalmCalmN3CalmSE3NE4CalmCalmCalmCalmCalmCalmSE3CalmE3CalmCalmCalmSE4CalmCalm
2 days agoCalmCalmCalmCalmCalmCalmCalmCalmSE6E3E3SE3SE7SE5S7SE4SE5CalmCalmE3SE4S4SE5SE4

Tide / Current Tables for Tomales Bay entrance, California
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Tomales Bay Entrance
Click for Map
Thu -- 12:29 AM PST     2.18 feet Low Tide
Thu -- 02:56 AM PST     Moonset
Thu -- 06:50 AM PST     5.40 feet High Tide
Thu -- 07:19 AM PST     Sunrise
Thu -- 01:23 PM PST     Moonrise
Thu -- 02:19 PM PST     -0.03 feet Low Tide
Thu -- 05:31 PM PST     Sunset
Thu -- 09:00 PM PST     3.53 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.22.22.63.244.75.35.45.14.43.42.31.20.4-00.10.61.42.22.93.43.53.43.1

Tide / Current Tables for Point Reyes, California Current
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Point Reyes
Click for Map
Thu -- 01:41 AM PST     0.00 knots Slack
Thu -- 02:56 AM PST     Moonset
Thu -- 04:41 AM PST     0.80 knots Max Flood
Thu -- 07:19 AM PST     Sunrise
Thu -- 07:30 AM PST     -0.00 knots Slack
Thu -- 10:50 AM PST     -1.23 knots Max Ebb
Thu -- 01:24 PM PST     Moonrise
Thu -- 02:51 PM PST     0.00 knots Slack
Thu -- 05:31 PM PST     Sunset
Thu -- 06:03 PM PST     0.98 knots Max Flood
Thu -- 08:59 PM PST     -0.00 knots Slack
Thu -- 11:35 PM PST     -0.58 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.5-0.20.10.50.80.80.60.3-0.3-0.8-1.2-1.2-1.1-0.9-0.50.10.60.910.90.5-0-0.4-0.6

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 (1,6,7,8)
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Ground Weather Radar Station Sacramento, 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.