Thursday, September3, 2015 L-36.com


Marine Weather and Tides
Dillon Beach, CA

Version 3.4
What's New / NOTES
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.
1/11/2015 - Updated Marine Zones because NOAA split some zones on the East Coast. You may need to edit or your forecast section.

Sunrise 6:41AMSunset 7:38PM Thursday September 3, 2015 6:29 PM PDT (01:29 UTC) Moonrise 10:13PMMoonset 11:23AM Illumination 71% 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- 233 Pm Pdt Thu Sep 3 2015
.small craft advisory in effect through late Friday night...
Tonight..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. NW swell 5 to 7 ft at 10 seconds and sw 3 ft at 12 seconds.
Fri..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. Mixed swell nw 4 to 6 ft at 9 seconds and sw 3 ft at 12 seconds.
Fri night..NW winds 20 to 30 kt. Wind waves 3 to 5 ft. Mixed swell nw 4 to 6 ft at 9 seconds and sw 3 ft at 20 seconds.
Sat..NW winds 10 to 20 kt. Wind waves 2 to 4 ft. Mixed swell nw 3 to 5 ft at 9 seconds and sw 3 ft at 20 seconds.
Sat night..NW winds 10 to 20 kt. Wind waves 2 to 4 ft. Mixed swell nw 3 to 5 ft at 8 seconds and sw 3 ft at 19 seconds.
Sun..NW winds 10 to 20 kt. Wind waves 2 to 4 ft. NW swell 3 to 5 ft and sw 3 to 4 ft.
Labor day..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 3 to 5 ft and sw 3 to 4 ft.
Tue..W winds 10 kt. Wind waves 2 ft or less. NW swell 3 to 5 ft. SW swell 3 to 4 ft.
PZZ500 233 Pm Pdt Thu Sep 3 2015
Synopsis for the central california coast and bays including Monterey bay national marine sanctuaries.. Moderate to strong northwest winds will persist over the coastal waters today and into tomorrow while a trough deepens in the region. Areas with the strongest winds could see hazardous conditions from steep fresh swell. A long period southerly swell moves into the region late this weekend.

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 032358
afdmtr
area forecast discussion
national weather service san francisco bay area
458 pm pdt Thu sep 3 2015

Synopsis Dry weather will continue through next week.

Cooler temperatures will continue through Friday as an upper
level trough digs southward from the pacific northwest. A warming
trend will begin over the weekend with warm temperatures
persisting through next week.

Discussion As of 2:48 pm pdt Thursday... Skies have cleared
over all areas except for right around half moon bay. Current
temperature trends are running cooler than yesterday at most
locations by several degrees with readings in the 60s and 70s.

Expect only patchy fog and low clouds overnight... Mainly near the
coast.

The upper level trough currently aligned along the west coast will
keep cool conditions over the district through Friday. By Saturday
the trough will begin to move to the east as a ridge of high
pressure currently over the eastern pacific begins to edge towards
california. This will usher in a warming trend that is expected to
last through the weekend and into early next week. Temperatures
are forecast to be from 5-15 degrees warmer by Sunday and Monday.

Latest runs of the medium range models keep the upper ridge over
the west well into next week... Thus highs are expected to stay
warm through Thursday at least. Conditions will remain dry
through the period.

Aviation As of 4:55 pm pdt Thursday... Upper trough along west
coast is keeping the low levels relatively well mixed. Thus... Low
clouds are expected to be confined to just a few patches near the
coast and locally into sf bay through late tonight and early on
Friday. Moderate onshore winds late this afternoon and evening
will diminish overnight. Westerly winds will increase on Friday
afternoon after a shortwave trough passes and will be locally
strong and gusty by late Friday afternoon.

Vicinity of ksfo...VFR through the evening and perhaps overnight
as well. Patchy low clouds will likely develop overnight... But
MVFR CIGS will probably remain confined the the ocean side of the
sf peninsula as well as the east side of the bay near koak.

Confidence... Moderate. West winds near 20 knots through early
evening will gradually decrease overnight. West winds will
increase to 23g30 knots by mid afternoon Friday.

Ksfo bridge approach... Similar to ksfo.

Monterey bay area terminals...VFR through early evening except
local MVFR CIGS near kmry. Difficult forecast concerning cig
development overnight but most likely scenario is for increasing
areas of MVFR CIGS by late tonight... Continuing through late
morning Friday. Confidence low to moderate. Light westerly winds
through mid evening... With stronger westerly winds on Friday
afternoon.

Marine As of 01:47 pm pdt Thursday... Northwest winds increase
over the coastal waters today as a trough deepens into the region.

Moderate to strong winds will persist into tomorrow before
decreasing this weekend. Areas with the strongest winds could see
hazardous conditions from steep fresh swell. A long period
southerly swell moves into the region late in the weekend.

Mtr watches/warnings/advisories
Tngt Sca... Sf bay until 9 pm
sca... Mry bay until 9 pm
sca... Pigeon pt to pt pinos 0-10 nm until 9 pm
sca... Pt arena to pt reyes 0-10 nm
sca... Pt reyes to pigeon pt 0-10 nm
sca... Pt arena to pigeon pt 10-60 nm
sca... Pt pinos to pt piedras blancas 0-10 nm until 3 am
sca... Pigeon pt to pt piedras blancas 10-60 nm from 9 pm
public forecast: sims
aviation: dykema
marine: drp
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 mi40 min NW 25 G 29 58°F 55°F9 ft1009.5 hPa (-1.7)
PRYC1 - 9415020 - Point Reyes, CA 18 mi48 min WNW 20 G 25 61°F 62°F1010.5 hPa
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 35 mi40 min NW 18 G 19 61°F 60°F6 ft1011.1 hPa (-1.2)
46237 - San Francisco Bar, CA (142) 37 mi108 min 61°F5 ft
RCMC1 - 9414863 - Richmond, CA 38 mi48 min SSE 9.9 G 12 65°F 69°F1010 hPa
TIBC1 - Tiburon Pier, San Francisco Bay, CA 38 mi53 min 65°F
PPXC1 - 9414847 - Richmond (Point Potrero), CA 40 mi48 min S 15 G 19 64°F 1010.5 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 40 mi48 min SW 14 G 19 69°F 1009.2 hPa
FTPC1 - 9414290 - San Francisco, CA 41 mi48 min SW 12 G 19 62°F 65°F1010.7 hPa
PXSC1 44 mi48 min 66°F 55°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 44 mi48 min W 11 G 13 64°F 1009.8 hPa
OBXC1 46 mi48 min 64°F 55°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 46 mi48 min SSW 8.9 G 11 66°F 1010.8 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 48 mi48 min SW 12 G 14 72°F 71°F1008.8 hPa50°F
UPBC1 48 mi48 min WSW 12 G 15
LNDC1 49 mi54 min SSW 11 G 13 64°F 1010.9 hPa
AAMC1 - 9414750 - Alameda, CA 49 mi48 min SW 8.9 G 12 65°F 71°F1010.8 hPa

Wind History for Point Reyes, CA
(wind in knots)    EDIT      (on/off)   Help
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NW16
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Santa Rosa, Santa Rosa Sonoma County Airport, CA20 mi37 minS 810.00 miFair79°F48°F34%1007.7 hPa
Petaluma Municipal Airport, CA20 mi35 minWSW 810.00 miFair73°F46°F38%1010.2 hPa
Novato / Gnoss Field, CA24 mi35 minSW 1010.00 miFair73°F48°F41%1009.8 hPa

Wind History from O69 (wind in knots)
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Last 24hrNW8
G15
W9W7NW5----N3NW3NW3NW4N3----N4--W4W3W4W5N3--SW10
G15
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W7
1 day agoW5W7SW7------N3NW3N3--NE3--N4N4NW3W4SW5W3W11
G14
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2 days agoW8W7NW3--N3------------------------E4E4S7W10NW5NW9W10
G15

Tide / Current Tables for Tomales Bay entrance, California
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Tomales Bay Entrance
Click for Map
Thu -- 03:44 AM PDT     4.28 feet High Tide
Thu -- 06:43 AM PDT     Sunrise
Thu -- 09:31 AM PDT     1.37 feet Low Tide
Thu -- 12:22 PM PDT     Moonset
Thu -- 03:46 PM PDT     5.36 feet High Tide
Thu -- 07:38 PM PDT     Sunset
Thu -- 10:47 PM PDT     0.33 feet Low Tide
Thu -- 11:13 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.72.73.64.14.33.93.32.51.81.41.41.92.73.74.65.25.354.23.121.10.50.3

Tide / Current Tables for Point Reyes, California Current
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Point Reyes
Click for Map
Thu -- 01:19 AM PDT     1.10 knots Max Flood
Thu -- 04:35 AM PDT     -0.00 knots Slack
Thu -- 06:43 AM PDT     Sunrise
Thu -- 07:06 AM PDT     -1.00 knots Max Ebb
Thu -- 10:32 AM PDT     0.00 knots Slack
Thu -- 12:22 PM PDT     Moonset
Thu -- 01:27 PM PDT     0.96 knots Max Flood
Thu -- 04:29 PM PDT     -0.00 knots Slack
Thu -- 07:32 PM PDT     -1.34 knots Max Ebb
Thu -- 07:38 PM PDT     Sunset
Thu -- 11:13 PM PDT     Moonrise
Thu -- 11:29 PM PDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.81.110.80.3-0.2-0.8-1-0.9-0.6-0.20.20.70.90.90.70.3-0.3-0.9-1.3-1.3-1.1-0.7-0.3

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 (21,6,7,8)
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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.