Thursday, March26, 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 7:02AMSunset 7:30PM Thursday March 26, 2015 6:53 PM PDT (01:53 UTC) Moonrise 10:55AMMoonset 12:32AM Illumination 43% Phase: First Quarter Moon; Moon at 7 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- 222 Pm Pdt Thu Mar 26 2015
.small craft advisory in effect from Friday evening through late Saturday night...
Tonight..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. W swell 6 to 7 ft at 12 seconds and sw 3 ft at 18 seconds.
Fri..NW winds 10 to 20 kt. Wind waves 2 to 4 ft. W swell 6 to 8 ft at 12 seconds and sw 3 ft at 20 seconds.
Fri night..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. W swell 7 to 9 ft at 10 seconds and sw 3 ft at 19 seconds.
Sat..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. W swell 8 to 10 ft at 9 seconds and sw 3 ft at 19 seconds.
Sat night..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. NW swell 9 to 12 ft at 10 seconds and sw 3 ft at 18 seconds.
Sun..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. W swell 8 to 10 ft and sw 3 ft.
Mon..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. W swell 9 to 11 ft...decreasing to 7 to 9 ft. S swell 3 ft.
Tue..NW winds 20 to 30 kt. Wind waves 3 to 6 ft. W swell 8 to 10 ft...increasing to 10 to 12 ft. S swell 3 ft.
PZZ500 222 Pm Pdt Thu Mar 26 2015
Synopsis for the central california coast and bays including Monterey bay national marine sanctuaries.. Winds will start to increase tomorrow as a thermal trogh begins to build along the coast. These strengthening winds will generate steep seas through the 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 262343
afdmtr
area forecast discussion
national weather service san francisco bay area
443 pm pdt Thu mar 26 2015

Synopsis Today will be the warmest day of the week as warming
trend continues. Record temperatures will be possible. Dry weather
conditions will also continue through the forecast period with
temperatures cooling slightly over the weekend.

Discussion As of 02:45 pm pdt Thursday... A strong high pressure
ridge is located directly over california this afternoon.

Temperatures have soared over the last hour with numerous reports
of temperatures in the 70s along the coast and 80s at inland
locations. As of 2pm... Downtown san francisco is running 77f
which is 11f warmer than yesterday at 2pm. Salinas is 88f which is
14 degrees above 2pm yesterday. Mesonet stations near cupertino
show temperatures around 86f as of 2pm... Which is the warmest
pocket within the immediate bay area. Another 2 to 3 hours of
warming are possible for locations away from the immediate
shoreline as the atmosphere warms to 15-16cat 850mb. Temperatures
at 850mb have risen 4-6c over the last 14 hours and are corresponding
to surface temperatures that are anywhere between 10 and 25f
degrees warmer at the surface. This high pressure system is nearly
2 standard deviations stronger than normal which typically
corresponds to unseasonably warm temperatures that are within a
few degrees of record values. As of 2pm... Record temperatures
are imminent at san jose... Salinas... Napa... And gilroy. Oakland
museum is within a few degrees as well... However temperatures
there will not see much additional warming after the next hour.

Temperatures are expected only marginally cooler on Friday as the
ridge shifts downstream into the great basin and the offshore
gradients weaken. Regions in the north bay will see the most
cooling into Friday whereas san benito county will remain the
warmest.

The weather pattern shifts early Saturday as a dry frontal
boundary moves into the area. Models are in general agreement that
this system weakens to some degree as it moves over the area...

and that precipitation is unlikely. Onshore flow will increase and
some cooling will occur on Saturday as moisture/clouds return into
the region. Ridging is set to build back into the region next
week... Leading to moderately above average temperatures and no
precipitation.

Aviation As of 4:30 pm pdt Thursday... Upper level high bringing
a warm and dry airmass over the area.VFR conditions through the
period.

Vicinity of ksfo...VFR through Friday. Brief period of west
seabreeze winds to 15 kt through 04z.

Sfo bridge approach... Similar to ksfo.

Monterey bay area terminals...VFR through Friday.

Climate Below are record daily high temperatures for Thursday
(3/26) and Friday (3/27):
thu 3/26 record Fri 3/27 record
climate station high and year high and year
sf bay area...

kentfield 88 in 1930 90 in 1923
san rafael 84 in 1988 82 in 1969
napa 86 in 1988 86 in 1930
san francisco downtown 82 in 1930 84 in 1923
san francisco airport 79 in 1952 77 in 1986
oakland museum 80 in 1988 79 in 1986
oakland airport 80 in 1952 82 in 1951
richmond 84 in 1970 82 in 1952
livermore 88 in 1988 82 in 1969
moffett field 83 in 1988 82 in 1969
san jose 84 in 1988 85 in 1923
gilroy 87 in 1997 85 in 1969
monterey bay area...

monterey 84 in 1988 80 in 1969
santa cruz 88 in 1988 87 in 1969
salinas 88 in 1969 85 in 1969
salinas airport 87 in 1988 80 in 1969
king city 89 in 1988 86 in 1969

Marine As of 02:09 pm pdt Thursday... A fairly weak pressure
gradient will lead to light winds through tonight. A thermal
trough will begin to build along the coast Friday resulting in
increasing winds over the coastal waters. These strengthening
winds will generate steep seas through the weekend.

Mtr watches/warnings/advisories
Tngt None.

Public forecast: drp
aviation: W pi
marine: bell
climate: dykema
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 mi64 min NNW 16 G 18 53°F 55°F6 ft1018.8 hPa (-1.3)
PRYC1 - 9415020 - Point Reyes, CA 18 mi54 min WNW 12 G 14 55°F 58°F1018.7 hPa (-0.7)
46214 - Point Reyes, CA (029) 33 mi43 min 57°F7 ft
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 35 mi64 min NW 14 G 18 54°F 56°F6 ft1018.8 hPa (-0.9)
46237 - San Francisco Bar, CA (142) 37 mi42 min 57°F5 ft
RCMC1 - 9414863 - Richmond, CA 38 mi54 min NW 4.1 G 4.1 76°F 62°F1017.4 hPa (-1.1)
PPXC1 - 9414847 - Richmond (Point Potrero), CA 40 mi54 min WSW 5.1 G 7 1017.9 hPa (-1.0)
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 40 mi54 min E 7 G 7 78°F 1017.4 hPa (-1.3)
FTPC1 - 9414290 - San Francisco, CA 41 mi54 min WSW 14 G 17 63°F 58°F1018.1 hPa (-0.9)
PXOC1 - 9414311 - San Francisco (Pier 1), CA 44 mi60 min W 7 G 9.9 76°F 1016.8 hPa
PXSC1 44 mi54 min 74°F 54°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 46 mi54 min WNW 9.9 G 9.9 67°F 1017.5 hPa (-1.2)
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 46 mi54 min WNW 8 G 9.9
OBXC1 46 mi54 min 69°F 56°F
UPBC1 48 mi54 min ENE 4.1 G 4.1
MZXC1 - 9415102 - Martinez-Amorco CA 48 mi54 min NE 2.9 G 4.1 76°F 64°F1017.1 hPa (-1.3)52°F
AAMC1 - 9414750 - Alameda, CA 49 mi54 min WNW 6 G 8 74°F 65°F1017.2 hPa (-1.0)
LNDC1 49 mi54 min WNW 5.1 G 6 77°F 1017.5 hPa (-1.1)

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 mi61 minWSW 710.00 miFair80°F50°F35%1016.8 hPa
Petaluma Municipal Airport, CA20 mi59 minW 810.00 miFair73°F57°F57%1019 hPa
Novato / Gnoss Field, CA24 mi59 minN 010.00 miFair81°F55°F42%1017.9 hPa

Wind History from O69 (wind in knots)
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Last 24hrW5NW4N4NW3NW3N3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmE3SE4SE6SE8SE7SE5CalmNW5
1 day agoW6W5NW3NW3CalmNW4CalmNW4NW3W5CalmNW3NW4W8W8NW5NW4NW3W6W6NW6W10
G14
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2 days agoW4NW3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmE3CalmN3NW3NW5NW6W8
G14
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Tide / Current Tables for Tomales Bay entrance, California
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Tomales Bay Entrance
Click for Map
Thu -- 01:32 AM PDT     Moonset
Thu -- 04:34 AM PDT     4.69 feet High Tide
Thu -- 07:06 AM PDT     Sunrise
Thu -- 11:54 AM PDT     Moonrise
Thu -- 12:00 PM PDT     0.01 feet Low Tide
Thu -- 06:50 PM PDT     3.46 feet High Tide
Thu -- 07:29 PM PDT     Sunset
Thu -- 11:52 PM PDT     2.28 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.42.93.64.24.64.64.33.62.71.70.80.200.20.81.62.433.43.53.332.72.4

Tide / Current Tables for Point Reyes, California Current
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Point Reyes
Click for Map
Thu -- 01:31 AM PDT     Moonset
Thu -- 02:30 AM PDT     0.61 knots Max Flood
Thu -- 05:24 AM PDT     -0.00 knots Slack
Thu -- 07:06 AM PDT     Sunrise
Thu -- 08:31 AM PDT     -1.09 knots Max Ebb
Thu -- 11:55 AM PDT     Moonrise
Thu -- 12:48 PM PDT     0.00 knots Slack
Thu -- 04:00 PM PDT     0.83 knots Max Flood
Thu -- 07:08 PM PDT     -0.00 knots Slack
Thu -- 07:29 PM PDT     Sunset
Thu -- 09:21 PM PDT     -0.50 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.10.40.60.60.40.2-0.3-0.8-1.1-1.1-0.9-0.7-0.40.10.50.80.80.80.50.1-0.3-0.5-0.5-0.4

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.