Saturday, October25, 2014 L-36.com


Marine Weather and Tides
Dillon Beach, CA

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6/10/2014 - Marine Zones updated. Some zones have changed. Edit your Marine Forecast section to check.

Sunrise 7:29AMSunset 6:20PM Saturday October 25, 2014 12:42 AM PDT (07:42 UTC) Moonrise 8:14AMMoonset 6:49PM Illumination 3% Phase: Waxing Crescent; Moon at 2 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- 857 Pm Pdt Fri Oct 24 2014
.small craft advisory in effect until 1 am pdt Saturday...
.gale warning in effect from 1 am pdt Saturday through Saturday afternoon...
Tonight..SE winds 15 to 25 kt. Gusts up to 40 kt after midnight. Wind waves 3 to 6 ft. NW swell 8 to 10 ft at 12 seconds. Slight chance of rain in the evening...then rain likely after midnight.
Sat..S winds 20 to 30 kt. Gusts up to 45 kt. Wind waves 3 to 8 ft. NW swell 9 to 11 ft at 12 seconds. Rain in the morning. Slight chance of Thunderstorms through the day. Showers in the afternoon.
Sat night..NW winds 10 to 20 kt. Wind waves 2 to 4 ft. NW swell 9 to 11 ft at 12 seconds. Chance of showers in the evening...then chance of rain after midnight.
Sun..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 6 to 8 ft at 13 seconds.
Sun night..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. NW swell 8 to 10 ft at 12 seconds.
Mon..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. NW swell 5 to 7 ft.
Tue..W winds 10 kt. Wind waves 2 ft or less. NW swell 5 to 7 ft...increasing to 6 to 8 ft. Slight chance of rain.
Wed..S winds 10 kt. Wind waves 2 ft or less. NW swell 5 to 7 ft...decreasing to 4 to 6 ft. Slight chance of rain.
PZZ500 857 Pm Pdt Fri Oct 24 2014
Synopsis for the central california coast and bays including Monterey bay national marine sanctuaries.. Low pressure situated west of cape mendocino will continue to deepen tonight resulting in strong southerly winds across the coastal waters. Gale force winds will develop overnight across the northern waters with strong small craft winds developing elsewhere. A line of rain and showers will move through the waters early Saturday morning with Thunderstorms possible north of the golden gate Saturday afternoon. Winds will ease and showers will end by Saturday night with lighter winds and moderate seas Sunday into Monday.

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 250552
afdmtr
area forecast discussion
national weather service san francisco bay area
1052 pm pdt Fri oct 24 2014

Synopsis A cold front will approach the coast late on Friday
night. Southerly winds will increase ahead of the front and become
locally strong and gusty near the coast and in the hills late
Friday night and Saturday morning. At the same time... Rain will
spread across much of the region. The front will pass through
quickly on Saturday morning... But cooler unstable air will bring
scattered showers to much of the area Saturday afternoon and
evening. A few thunderstorms may develop as well... Especially from
the santa cruz mountains northward. Drier and cooler weather is
expected Sunday with a warming trend beginning Monday as high
pressure rebuilds along the coast.

Discussion As of 8:55 pm pdt Friday... A storm system over the
eastern pacific continues to advance towards the west coast at a
moderate pace. Satellite shows a well-defined cold front moving
just inside 130w and a pool of cold unstable air behind the front.

Southerly winds have already developed ahead of the front and have
begun to increase over our coastal waters. Wind speeds will
gradually ramp up overnight as the front draws closer. Winds will
become locally strong and gusty near the ocean and in the hills by
late tonight. Based on the latest nam... The cold front should pass
through the north bay by about sunrise Saturday morning and then
through the rest of the sf bay area by mid morning. Winds are
forecast to veer more to the southwest after frontal passage... But
remain quite strong and gusty through midday Saturday. This looks
like a marginal wind advisory situation... With the most
significant pressure gradients and winds forecast to remain to our
north. Wind gusts up in the 40-50 mph range will probably only
occur in some of our windiest coastal and ridgetop locations late
tonight and Saturday morning. However... Drought-stressed trees
have not been subjected to winds of any significance for quite
some time and many are prone to toppling with this first blustery
storm system of the season. Power outages or property damage are
possible due to fallen trees or tree limbs. Therefore... Will
continue with a wind advisory for the north bay coast and
mountains... The san mateo and santa cruz county coasts... And the
santa cruz mountains from 3 am to noon pdt on Saturday.

The cold front will spread rain across most of our region late
tonight and Saturday morning. There may be a bit of a break in the
precip action late Saturday morning after frontal passage... But
then bands of showers are expected to rotate through our region as
the cold and unstable airmass associated with the upper trough
arrives. The 00z NAM has backed off on the amount of instability
forecast across the sf bay area on Saturday afternoon and so
thunderstorm chances appear to be dwindling. However... As pointed
out in the previous discussion... Continued much warmer than normal
sea surface temperatures along our coast may provide the necessary
ingredient for greater instability and isolated thunderstorms.

Showers are expected to taper of Saturday evening and end by
daybreak Sunday. Sunday will be a relatively cool day with
northwest breezes under partly cloudy skies.

A warming trend is forecast for the first half of the work week as
a low amplitude upper ridge builds over ca. The pattern will
remain active over the northeast pacific... With storm systems
forecast to ride over the ridge and into the pac nw. It currently
appears very unlikely that any of this precip will make it into
our area... And we may want to consider removing pops from the
north bay around the middle of next week.

Confidence in the forecast falls off considerably late in the
extended. The medium range models agree that the upper ridge will
move east by the end of next week... Allowing the trough offshore to
approach the west coast. But the forecast of precip onset in our area
varies considerably... From as early as Thursday night (gem) to as
late as Sunday night (ecmwf).

Aviation As of 10:51 pm pdt Friday... For 06z tafs. An
approaching low pressure system and associated cold front
situated off the northern california coast will bring increasing
southeasterly winds overnight and wet runways by morning. T-storms
remain a concert for Saturday afternoon.

Vicinity of ksfo...VFR conditions expected through late tonight. Light
south winds will turn southeasterly and strengthen overnight. -ra
expected around 11z tonight. By Saturday morning moderate and
gusty southeast winds and wet runways will impact the morning
traffic. Winds expected to veer southwesterly Saturday afternoon.

Ksfo bridge approach... Similar to ksfo.

Monterey bay area terminals...VFR conditions expected through
late tonight. Light winds will turn southeasterly overnight.

-shra expected to develop around 12z-15z Saturday. By Saturday
morning southeast winds and wet runways will impact area
terminals. Winds expected to veer southwesterly Saturday
afternoon.

Marine As of 8:57 pm pdt Friday... Low pressure situated west
of CAPE mendocino will continue to deepen tonight resulting in
strong southerly winds across the coastal waters. Gale force winds
will develop overnight across the northern waters with strong
small craft winds developing elsewhere. A line of rain and showers
will move through the waters early Saturday morning with
thunderstorms possible north of the golden gate Saturday
afternoon. Winds will ease and showers will end by Saturday night
with lighter winds and moderate seas Sunday into Monday.

Mtr watches/warnings/advisories
Tngt Wind advisory... North bay coast and mountains
wind advisory... San mateo and santa cruz county coasts
wind advisory... Santa cruz mountains
sca... Sf bay north of the bay bridge from 3 am
sca... Sf bay south of the bay bridge from 3 am
sca... Pigeon pt to pt pinos 0-10 nm from 3 am
sca... Pt pinos to pt piedras blancas 0-10 nm from 3 am
sca... Pt pinos to pt piedras blancas 10-60 nm from 3 am
glw... Pt arena to pt reyes 10-60 nm
sca... Pt reyes to pigeon pt 10-60 nm until midnight
glw... Pt reyes to pigeon pt 10-60 nm from midnight
sca... Pt reyes to pigeon pt 0-10 nm from 9 pm
sca... Pigeon pt to pt pinos 10-60 nm from 9 pm
sca... Pt arena to pt reyes 0-10 nm until 1 am
glw... Pt arena to pt reyes 0-10 nm from 1 am
sca... Rough bar advisory for sf bar from 5 am
public forecast: dykema
aviation/marine: cw
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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 mi52 min SE 21 G 25 62°F 63°F7 ft1011 hPa (+0.0)
PRYC1 - 9415020 - Point Reyes, CA 18 mi42 min ESE 19 G 26 64°F 61°F1011.8 hPa (+0.0)
46214 - Point Reyes, CA (029) 33 mi31 min 63°F8 ft
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 35 mi52 min SSE 19 G 23 62°F 61°F6 ft1012.5 hPa (+0.3)
46237 - San Francisco Bar, CA (142) 37 mi30 min 61°F5 ft
RCMC1 - 9414863 - Richmond, CA 38 mi42 min SSE 11 G 16 65°F 64°F1012.7 hPa (+0.3)
PPXC1 - 9414847 - Richmond (Point Potrero), CA 40 mi42 min S 16 G 20 67°F 1012.9 hPa (+0.4)
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 40 mi42 min SSW 11 G 14 66°F 1012.4 hPa (+0.3)
FTPC1 - 9414290 - San Francisco, CA 41 mi42 min SSE 4.1 G 8 65°F 63°F1013.2 hPa (+0.4)
PXOC1 - 9414311 - San Francisco (Pier 1), CA 44 mi42 min SE 8.9 G 12 66°F 1011.9 hPa (+0.6)
PXSC1 44 mi42 min 66°F 55°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 46 mi42 min S 11 G 15 66°F 1013 hPa (+0.5)
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 46 mi42 min S 11 G 14
OBXC1 46 mi42 min 66°F 57°F
UPBC1 48 mi42 min SSW 7 G 12
MZXC1 - 9415102 - Martinez-Amorco CA 48 mi42 min S 5.1 G 6 65°F 66°F1012.3 hPa (+0.6)54°F
AAMC1 - 9414750 - Alameda, CA 49 mi42 min SSE 13 G 15 66°F 66°F1013.2 hPa (+0.6)
LNDC1 49 mi42 min SSE 8 G 12 66°F 1013.2 hPa (+0.6)

Wind History for Point Reyes, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Santa Rosa (awos), CA20 mi49 minSSE 710.00 miOvercast63°F55°F76%1011.2 hPa
Petaluma Muni, CA20 mi47 minSE 310.00 miOvercast64°F55°F73%1013.5 hPa
Novato/Gnoss Field Airport, CA24 mi47 minSE 610.00 miMostly Cloudy63°F55°F77%1013.2 hPa

Wind History from O69 (wind in knots)
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Last 24hrE3CalmCalmCalmCalmCalmCalmSE4SE5SE8S8SE7E3CalmSW8SW8
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1 day agoNW3NW3W3CalmCalmCalmNW3CalmW3SW4W3W4W3NW5NW6W9NW5NW5NW3W3CalmCalmCalmE3
2 days agoCalmCalmCalmNW3N3CalmCalmCalmNW5W6W7W6N6N3W8W10W7
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Tide / Current Tables for Tomales Bay entrance, California
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Tomales Bay Entrance
Click for Map
Sat -- 01:18 AM PDT     4.13 feet High Tide
Sat -- 06:34 AM PDT     2.01 feet Low Tide
Sat -- 07:31 AM PDT     Sunrise
Sat -- 09:13 AM PDT     Moonrise
Sat -- 12:29 PM PDT     5.32 feet High Tide
Sat -- 06:20 PM PDT     Sunset
Sat -- 07:35 PM PDT     -0.29 feet Low Tide
Sat -- 07:49 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.74.143.632.42.122.43.144.85.35.24.73.72.51.30.4-0.2-0.20.21.12.1

Tide / Current Tables for Point Reyes, California Current
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Point Reyes
Click for Map
Sat -- 02:06 AM PDT     -0.00 knots Slack
Sat -- 04:29 AM PDT     -0.86 knots Max Ebb
Sat -- 07:30 AM PDT     Sunrise
Sat -- 07:41 AM PDT     0.00 knots Slack
Sat -- 09:13 AM PDT     Moonrise
Sat -- 10:36 AM PDT     0.83 knots Max Flood
Sat -- 01:24 PM PDT     -0.00 knots Slack
Sat -- 04:42 PM PDT     -1.41 knots Max Ebb
Sat -- 06:21 PM PDT     Sunset
Sat -- 07:49 PM PDT     Moonset
Sat -- 08:27 PM PDT     0.00 knots Slack
Sat -- 11:27 PM PDT     1.07 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.90.60.1-0.5-0.8-0.8-0.6-0.20.10.50.80.80.60.2-0.3-0.9-1.3-1.4-1.1-0.7-0.20.30.81

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 (3,6,7,8)
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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.