Saturday, April19, 2014 L-36.com


Marine Weather and Tides
Dillon Beach, CA

Version 3.4
What's New / NOTES
11/18/2013 - I just got an email from NOAA saying all their network problems have been fixed. Sorry for the inconvenience.
11/16/2013 - NOAA worked over the last month to fix the load speed for our daily forecast. Then went from 60% fast loads to 99.8% fast loads.
8/5/2013 - Point forecast now loads in parallel and does not block rest of page.

Sunrise 6:26AMSunset 7:53PM Saturday April 19, 2014 12:55 PM PDT (19:55 UTC) Moonrise 11:36PMMoonset 8:57AM Illumination 73% Phase: Waning Gibbous; Moon at 20 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- 837 Am Pdt Sat Apr 19 2014
Today..NW winds 10 to 20 kt. Wind waves 2 to 4 ft. W swell 6 to 8 ft at 14 seconds.
Tonight..NW winds 10 to 20 kt. Wind waves 2 to 4 ft. W swell 6 to 8 ft at 13 seconds. Patchy fog after midnight.
Sun..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 11 to 14 ft at 17 seconds and S 3 ft at 16 seconds. Patchy fog in the morning.
Sun night..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. W swell 9 to 12 ft at 15 seconds. Patchy fog after midnight.
Mon..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. W swell 8 to 10 ft at 14 seconds. Patchy fog in the morning. Chance of showers.
Tue..NW winds 10 to 20 kt. Wind waves 2 to 4 ft. W swell 7 to 9 ft. Chance of showers...then slight chance of showers.
Wed..NW winds 10 to 20 kt. Wind waves 2 to 4 ft. NW swell 7 to 9 ft.
PZZ500 837 Am Pdt Sat Apr 19 2014
Synopsis for the central california coast and bays including Monterey bay national marine sanctuaries.. Northwesterly winds will gradually diminish this morning as high pressure over northernmost ca weakens. Large northwest swell will make its way to the coast Sunday morning persisting into early next week.

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 191749
afdmtr
area forecast discussion
national weather service san francisco bay area
1049 am pdt Sat apr 19 2014

Synopsis A slight warming trend will continue through the
remainder of the weekend along with dry conditions. A weak storm
system will then impact the region Monday night through Tuesday
and bring chances for precipitation and cooler temperatures. Quiet
weather and near normal temperatures return for the latter half of
next week.

Discussion As of 08:45 am pdt Saturday... Mostly sunny skies
with patchy low clouds around the area this morning under a
somewhat diffuse 2000 ft marine layer. Onshore flow should keep
the coast cool regardless with the sfo-sac gradient forecast to
reach 3.6 mb this afternoon. A weak frontal system approaching the
west coast today will stay well north of the CWA due to a building
upper level ridge. No updates needed at this time.

Prev discussion As of 04:38 am pdt Saturday... Low clouds have
increased across the region this morning as a 2000 ft marine layer
remains in place. Stratus will likely stick around through late
morning before burning off by early afternoon. This will keep
temperatures coolest along the coast with a generally weak onshore
flow. Daytime temperatures across inland areas will likely be
warmer than previous days as the mid/upper level ridge builds
across the region. Slightly warmer conditions can then be expected
on Sunday with weaker onshore flow and increased 850mb
temperatures.

The next mid/upper level system will begin to approach the pacific
northwest on Monday and sweep across the state Monday night
through Tuesday. This fast moving system will have limited
moisture to work with and will likely only produce light rainfall
amounts across portions of the region Monday night into Tuesday
morning. Rain chances diminish by Tuesday afternoon/evening with
noticeably cooler temperatures expected for Tuesday and Wednesday.

Daytime temperatures will rebound for the latter half of the
upcoming workweek as the mid/upper level ridge rebuilds along the
west coast. With the ridge aloft... Dry weather will also continue
for the second half of next week.

Medium range forecast models continue to agree that a stronger and
wetter storm system will impact the area late Friday through next
weekend. Chances continue to increase for widespread rainfall as a
slow moving mid/upper level system moves across the region.

Aviation As of 10:50 am pdt Saturday... Satellite imagery shows
that low clouds have cleared from all terminal sites. There are a
few high clouds streaming across the state at this time... And low
clouds off the coast. Expect low clouds to form again tonight.

Vicinity of ksfo...VFR today and tonight. Gusty west winds 20-28
knots are forecast for this afternoon and evening.

Ksfo bridge approach... Similar to ksfo.

Monterey bay area terminals...VFR. Expect MVFR conditions again
late tonight.

Marine As of 10:50 am pdt Saturday... Gusty northwest winds in
the small craft advisory criteria are still expected in the
southern waters today and tonight.

A high surf advisory has been issued from 5 am Sunday to 5 am Monday
morning for the coast from sonoma county south to monterey county.

Northwest swell will build to 13 to 15 feet with swell periods 15 to
16 seconds.

Mtr watches/warnings/advisories
Tday Sca... Pt pinos to pt piedras blancas 0-10 nm
sca... Pt pinos to pt piedras blancas 10-60 nm
public forecast: rgass
aviation/marine: sims
visit us at

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 mi66 min WNW 9.7 G 12 50°F 49°F5 ft1020 hPa (+2.1)
PRYC1 - 9415020 - Point Reyes, CA 18 mi38 min WNW 12 G 18 54°F 53°F1019.9 hPa
46214 - Point Reyes, CA (029) 33 mi60 min 51°F6 ft
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 35 mi66 min 7.8 G 9.7 5 ft
46237 - San Francisco Bar, CA (142) 37 mi25 min 56°F5 ft
RCMC1 - 9414863 - Richmond, CA 38 mi38 min S 7 G 11 60°F 61°F1018.7 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 40 mi38 min SW 9.9 G 12 59°F 1018.9 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 40 mi38 min WSW 9.9 G 13 62°F 1018 hPa
FTPC1 - 9414290 - San Francisco, CA 41 mi38 min WSW 14 G 19 55°F 60°F1019.7 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 44 mi38 min W 8.9 G 15 59°F 1018.2 hPa
OBXC1 46 mi38 min 58°F 49°F
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 46 mi38 min W 8 G 11
OKXC1 - 9414776 - Oakland (Berth 34), CA 46 mi38 min W 12 G 14 57°F 1019.1 hPa
UPBC1 48 mi38 min W 15 G 19
MZXC1 - 9415102 - Martinez-Amorco CA 48 mi38 min WSW 12 G 17 64°F 63°F1017.5 hPa39°F
AAMC1 - 9414750 - Alameda, CA 49 mi38 min W 5.1 G 8 60°F 64°F1019.1 hPa
LNDC1 49 mi38 min W 8 G 9.9 58°F 1019.2 hPa

Wind History for Point Reyes, CA
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W13
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NW20
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G36
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G30
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G31
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G29

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Santa Rosa (awos), CA20 mi63 minVar 610.00 miFair64°F45°F50%1017.2 hPa
Petaluma Muni, CA20 mi61 minWNW 12 G 1910.00 miFair59°F46°F63%1019.6 hPa
Novato/Gnoss Field Airport, CA24 mi61 minW 710.00 miFair66°F39°F37%1018.6 hPa

Wind History from O69 (wind in knots)
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Last 24hrNW8NW10NW6
G14
NW6W7W7NW4CalmN4N3N3N3N4NW4NW4NW6NW3NW4CalmNW5NW6W9NW12
G17
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1 day agoW9SW9W7W10
G14
W8NW5W9W10
G15
W12NW7NW5CalmNW3N3NW3NW3W5CalmW4CalmW4W6NW3NW6
2 days agoNW4NW7NW7NW6NW7NW4W8NW4NW4NW3CalmN3CalmCalmCalmNW3CalmCalmNW5NW3W6W7W3N6

Tide / Current Tables for Tomales Bay entrance, California
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Tomales Bay Entrance
Click for Map
Sat -- 02:18 AM PDT     5.00 feet High Tide
Sat -- 06:30 AM PDT     Sunrise
Sat -- 09:37 AM PDT     -0.65 feet Low Tide
Sat -- 09:56 AM PDT     Moonset
Sat -- 04:19 PM PDT     3.55 feet High Tide
Sat -- 07:52 PM PDT     Sunset
Sat -- 09:12 PM PDT     2.16 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.94.654.94.33.32.10.9-0-0.5-0.6-0.20.61.62.53.23.53.53.22.72.42.22.32.6

Tide / Current Tables for Point Reyes, California Current
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Point Reyes
Click for Map
Sat -- 12:19 AM PDT     0.74 knots Max Flood
Sat -- 03:00 AM PDT     -0.00 knots Slack
Sat -- 06:31 AM PDT     Sunrise
Sat -- 06:33 AM PDT     -1.38 knots Max Ebb
Sat -- 09:57 AM PDT     Moonset
Sat -- 10:20 AM PDT     0.00 knots Slack
Sat -- 01:23 PM PDT     1.00 knots Max Flood
Sat -- 04:58 PM PDT     -0.00 knots Slack
Sat -- 07:12 PM PDT     -0.68 knots Max Ebb
Sat -- 07:51 PM PDT     Sunset
Sat -- 10:13 PM PDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.70.70.40-0.5-1-1.3-1.3-1-0.6-0.20.30.7110.70.4-0-0.4-0.7-0.6-0.3-0.10.2

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 (15,3,4,5)
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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.