Friday, September19, 2014 L-36.com


Marine Weather and Tides
Dillon Beach, CA

Version 3.4
What's New / NOTES
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 6:55AMSunset 7:12PM Friday September 19, 2014 8:52 PM PDT (03:52 UTC) Moonrise 1:50AMMoonset 3:43PM Illumination 17% Phase: Waning Crescent; Moon at 26 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- 214 Pm Pdt Fri Sep 19 2014
Tonight..SW winds 10 kt. Wind waves 2 ft or less. Mixed swell nw 3 to 5 ft at 9 seconds and sw 3 to 4 ft at 14 seconds. Patchy fog after midnight.
Sat..S winds 5 to 15 kt. Wind waves 1 to 3 ft. Mixed swell nw 2 to 4 ft at 11 seconds and sw 3 ft at 13 seconds. Patchy fog in the morning.
Sat night..S winds 10 kt. Wind waves 2 ft or less. NW swell 4 to 5 ft at 12 seconds. Patchy fog after midnight.
Sun..S winds 10 kt. Wind waves 2 ft or less. NW swell 3 to 5 ft at 11 seconds. Patchy fog in the morning.
Sun night..W winds 10 kt. Wind waves 2 ft or less. NW swell 3 to 4 ft at 11 seconds. Patchy fog after midnight.
Mon..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. W swell 3 to 4 ft. Patchy fog.
Tue..W winds 10 kt. Wind waves 2 ft or less. NW swell 3 to 4 ft. Patchy fog. Chance of rain.
Wed..S winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 5 to 7 ft...shifting to the W 9 to 11 ft. Chance of rain.
PZZ500 214 Pm Pdt Fri Sep 19 2014
Synopsis for the central california coast and bays including Monterey bay national marine sanctuaries.. Moderate onshore winds will continue into the evening hours. A fairly long period southwesterly swell will continue to impact the waters into the evening but is expected to slowly subside over the next 24 hours. A longer period west to northwest swell is forecast to impact our area starting on Wednesday.

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 200017
afdmtr
area forecast discussion
national weather service san francisco bay area
517 pm pdt Fri sep 19 2014

Synopsis Pleasant weather is anticipated through the weekend.

A pacific storm system will bring a possibility of precipitation
to the forecast area by mid week.

Discussion As of 2:34 pm pdt Friday... The current visible
satellite image is showing mostly clear skies around the forecast
area this afternoon with cumulus clouds beginning to pop up over
the higher terrain south of san jose. Under mostly clear skies
temperatures are running in the low to mid 70s at most locations with
lower 80s in the east bay area.

The satellite water vapour image is showing yesterdays storm
system centered off of the southern california coast which is
resulting in light north northeasterly winds over our area. These
winds are advecting drier air into the central coast... Lowering
the humidity slightly. This will result in pleasant weather around
the forecast area through the weekend.

The 1200z ECMWF and gfs40 have initialized well with the current
synoptic pattern. Both models allow yesterdays storm system... Low
pressure system... To linger over southern california through
tomorrow promoting pleasant weather for the central coast. The low
pushes off into nevada Sunday as a trough of low pressure
approaches the west coast.

Both models remain in good agreement with this approaching trough
and a deepening low off of the bc coast. This deepening low will
bring the potential for another round of rain by mid week and
cooler temperatures. Additionally... Northwest winds ranging
between 45 and 50 kt off of the bc coast associated with this
storm may generate the first large northwest swell of the winter
season with waves in the 10 to 15 foot range reaching the coast
mid week.

Aviation As of 5:15 pm pdt Friday... Extensive stratus along
the coast. Onshore gradients more e-w this afternoon which
supports an early return of stratus into sfo. Latest forecast
brings MVFR CIGS to sfo by 03z.

Vicinity of ksfo... MVFR by 03z.

Ksfo bridge approach... Similar to ksfo.

Monterey bay area terminals... Stratus is already pouring into the
srn mry bay area. MVFR CIGS lowering to ifr after 04z.

Marine As of 2:37 pm pdt Friday... Moderate onshore winds will
continue into the evening hours. A fairly long period
southwesterly swell will continue to impact the waters into the
evening but is expected to slowly subside over the next 24 hours.

A longer period west to northwest swell is forecast to impact our
area starting on Wednesday.

Mtr watches/warnings/advisories
Tngt Sca... Sf bay north of the bay bridge until 9 pm
public forecast: larry
aviation: W pi
marine: bell
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 mi63 min W 3.9 G 5.8 61°F 65°F5 ft1011.5 hPa (+0.0)
PRYC1 - 9415020 - Point Reyes, CA 18 mi35 min W 2.9 G 4.1 65°F 66°F1011.9 hPa
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 35 mi63 min WNW 3.9 G 5.8 63°F 64°F4 ft1012.2 hPa (+0.0)
46237 - San Francisco Bar, CA (142) 37 mi41 min 64°F4 ft
RCMC1 - 9414863 - Richmond, CA 38 mi35 min WSW 5.1 G 8.9 65°F 69°F1011.4 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 40 mi35 min SW 8 G 9.9 67°F 1010.9 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 40 mi35 min SW 7 G 11 66°F 1011.7 hPa
FTPC1 - 9414290 - San Francisco, CA 41 mi35 min W 4.1 G 8.9 63°F 65°F1012 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 44 mi35 min WSW 8.9 G 14 64°F 1010.8 hPa
PXSC1 44 mi35 min 64°F 62°F
OBXC1 46 mi35 min 64°F 62°F
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 46 mi35 min WSW 7 G 8.9
OKXC1 - 9414776 - Oakland (Berth 34), CA 46 mi35 min W 8 G 9.9 64°F 1011.8 hPa
UPBC1 48 mi35 min W 14 G 17
MZXC1 - 9415102 - Martinez-Amorco CA 48 mi35 min W 12 G 14 70°F 71°F1010.4 hPa60°F
LNDC1 49 mi35 min W 5.1 G 7 65°F 1011.8 hPa
AAMC1 - 9414750 - Alameda, CA 49 mi35 min WNW 7 G 8.9 65°F 71°F1011.8 hPa

Wind History for Point Reyes, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Santa Rosa (awos), CA20 mi60 minSE 610.00 miFair63°F61°F93%1010.1 hPa
Petaluma Muni, CA20 mi58 minNW 410.00 miMostly Cloudy63°F60°F94%1012.2 hPa
Novato/Gnoss Field Airport, CA24 mi78 minN 810.00 miFair66°F60°F83%1011.2 hPa

Wind History from O69 (wind in knots)
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Last 24hrN3W4CalmN3CalmW6NW5NW3CalmN3CalmCalmNW4NW4NW3NW5W9W9NW6NW6NW4NW5NW4NW6
1 day agoSE5SW3CalmE3CalmCalmE4E3E3CalmCalmE4SE3S4SW10CalmS6S7SW10W7SW4W9W7NW3
2 days agoNW4NW4NW4W6W4NW3NW4NW4NW4NW3NW3NW3CalmNW3N3N4CalmS3SW11W10
G17
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G20
NW6SW9W4

Tide / Current Tables for Tomales Bay entrance, California
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Tomales Bay Entrance
Click for Map
Fri -- 02:49 AM PDT     Moonrise
Fri -- 03:25 AM PDT     0.49 feet Low Tide
Fri -- 06:57 AM PDT     Sunrise
Fri -- 10:03 AM PDT     4.10 feet High Tide
Fri -- 03:33 PM PDT     2.07 feet Low Tide
Fri -- 04:43 PM PDT     Moonset
Fri -- 07:13 PM PDT     Sunset
Fri -- 09:16 PM PDT     4.57 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.51.70.90.50.611.82.63.43.94.143.532.52.12.12.433.74.34.64.54

Tide / Current Tables for Point Reyes, California Current
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Point Reyes
Click for Map
Fri -- 12:12 AM PDT     -0.98 knots Max Ebb
Fri -- 02:50 AM PDT     Moonrise
Fri -- 04:08 AM PDT     0.00 knots Slack
Fri -- 06:57 AM PDT     Sunrise
Fri -- 07:23 AM PDT     0.88 knots Max Flood
Fri -- 10:13 AM PDT     -0.00 knots Slack
Fri -- 01:16 PM PDT     -0.62 knots Max Ebb
Fri -- 04:19 PM PDT     0.00 knots Slack
Fri -- 04:43 PM PDT     Moonset
Fri -- 07:13 PM PDT     Sunset
Fri -- 07:16 PM PDT     0.69 knots Max Flood
Fri -- 09:52 PM PDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-1-0.9-0.8-0.5-0.10.40.70.90.80.60.1-0.3-0.6-0.6-0.6-0.5-0.10.30.60.70.60.4-0.1-0.6

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 (23,6,7,8)
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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.