Sunday, March1, 2015 L-36.com


Marine Weather and Tides
Dillon Beach, CA

Version 3.4
What's New / NOTES
1/11/2015 - Updated Marine Zones because NOAA split some zones on the East Coast. You may need to edit or your forecast section. 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 6:40AMSunset 6:05PM Sunday March 1, 2015 3:24 PM PST (23:24 UTC) Moonrise 2:47PMMoonset 4:09AM Illumination 86% Phase: Waxing Gibbous; Moon at 11 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- 221 Pm Pst Sun Mar 1 2015
Tonight..NW winds 10 kt. Wind waves 2 ft or less. NW swell 4 to 6 ft at 10 seconds.
Mon..NW winds 10 to 20 kt. Wind waves 2 to 4 ft. NW swell 6 to 8 ft at 9 seconds. Slight chance of showers through the day.
Mon night..NW winds 10 to 20 kt. Wind waves 3 to 6 ft. NW swell 6 to 8 ft at 9 seconds.
Tue..NW winds 10 kt. Wind waves 2 ft or less. NW swell 5 to 7 ft at 9 seconds and sw 3 ft at 19 seconds.
Tue night..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. Mixed swell nw 4 to 6 ft at 9 seconds and sw 3 ft at 19 seconds.
Wed..SW winds 5 kt. Wind waves 2 ft or less. Mixed swell nw 4 to 6 ft and sw 3 ft.
Thu..NW winds 5 kt. Wind waves 2 ft or less. NW swell 2 to 4 ft...becoming 2 to 3 ft. S swell 3 ft.
Fri..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. Mixed swell W 3 to 4 ft and S 3 ft.
PZZ500 221 Pm Pst Sun Mar 1 2015
Synopsis for the central california coast and bays including Monterey bay national marine sanctuaries.. Another storm system will approach the region tonight and move over the region on Monday bringing showers...thunderstorms and gusty winds to the region. Winds will be strongest north of pigeon point over the outer waters tonight through Monday night. Light winds and gentle seas develop on Tuesday. A mixed swell will develop midweek as a long period southerly swell enters the coastal waters.

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 012155
afdmtr
area forecast discussion
national weather service san francisco bay area
155 pm pst Sun mar 1 2015

Synopsis Some showers and isolated thunderstorms across the
hills of monterey and san benito county through sunset otherwise
becoming mostly clear overnight. Another weak weather system will
drop down the coast bringing some scattered showers to the region
Monday afternoon... Mainly over the hills and along the coast. High
pressure builds Tuesday through next weekend with a return to dry
conditions... Mostly clear skies and above normal daytime
temperatures.

Discussion As of 1:55 pm pst Sunday... Short term focus is with
developing showers over southern monterey and san benito counties
at this time. So far about 10 cloud to cloud strikes detected but
the storms are expected to continue to develop through the
afternoon hours. Mesoscale models captured this well and storm
movement will take cells westward over coastal monterey county
(roughly through fort hunter liggett/jolon/lockwood and eventually
towards the big sur coast around gorda). Main threat will be small
hail and lightning strikes. These cells are still associated with
yesterdays upper low but should dissipate quickly around sunset.

Meanwhile the rest of the bay area is enjoying a sunny Sunday
afternoon with highs in the 60s with cumulus clouds popping over
mt hamilton and the santa cruz mtns. These clouds will collapse as
the Sun sets... Setting the stage for a mostly clear and cool night.

On Monday another fast moving system from the north will dive down the
coast. Models have been consistent in keeping main rain shield
well offshore as the low drops down the coast. However proximity
of cold air aloft should destabilze things aloft to allow another
round of afternoon showers and isolated t-storms. For different
reasons it looks like once again the hills of monterey and san
benito will see the best chance of convective showers again Monday
afternoon. However the hills of santa clara county and to a lesser
extend santa cruz county will see the chance for afternoon showers
or an isolated t-storm.

Once again as the Sun sets on Monday night any remaining cells
will collapse.

After that high pressure will quickly build over the west coast
and bay area by Tuesday morning. Expect mostly clear days with a
warming trend through the week under high pressure. Temperatures
well into the 60s and 70s this week with mild nights under high
pressure and the increasing solar Sun angle.

Unfortunately we still need more rain and the wet season is
quickly ending. The models look mostly dry in the extended range
with some hint for some rain by mid-month.

Aviation As of 9:25 am pst Sunday...VFR conditions at all
terminals this morning and this will be the case for much of the
day. Some of the model guidance suggests a low level cloud deck
tonight... But not totally buying this as another low approaches
from the north.

Vicinity of ksfo... ForecastingVFR through the period. High cigs
tomorrow as another low slides through. Will not introduce any
precip as it will be sct and best chc south of sfo/oak.

Confidence is high.

Ksfo bridge approach... Similar to ksfo.

Monterey bay area terminals...VFR through the period. Sct CU deck
poss this afternoon.

Confidence is high.

Marine As of 09:22 am pst Sunday... Light to moderate winds will
prevail over the bay area waters today as a storm system exits to
the south. Another storm system will mover over the region on
Monday with another chance for showers... Thunderstorms and gusty
winds. Winds will be strongest north of pigeon point over the
outer waters. Light winds and gentle seas develop on Tuesday.

Mtr watches/warnings/advisories
Tngt Sca... Pt arena to pt reyes 10-60 nm from 10 pm
sca... Pt reyes to pigeon pt 10-60 nm from 4 am
public forecast: rww
aviation/marine: mm
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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 mi34 min W 7.8 G 9.7 56°F 56°F7 ft1014.2 hPa (-1.6)
PRYC1 - 9415020 - Point Reyes, CA 18 mi48 min W 8 G 12 58°F 56°F1013.8 hPa
46214 - Point Reyes, CA (029) 33 mi43 min 58°F8 ft
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 35 mi34 min WNW 5.8 G 7.8 55°F 57°F4 ft1014.8 hPa (-1.2)
46237 - San Francisco Bar, CA (142) 37 mi42 min 57°F4 ft
RCMC1 - 9414863 - Richmond, CA 38 mi36 min NW 5.1 G 6 60°F 59°F1013.2 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 40 mi36 min WNW 5.1 G 8.9 64°F 1013.6 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 40 mi36 min WNW 5.1 G 8 61°F 1013.1 hPa
FTPC1 - 9414290 - San Francisco, CA 41 mi36 min WSW 8.9 G 15 57°F 59°F1014 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 44 mi36 min W 8 G 12 61°F 1012.7 hPa
PXSC1 44 mi36 min 60°F 40°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 46 mi36 min WNW 8.9 G 11 59°F 1013.5 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 46 mi36 min W 11 G 12
OBXC1 46 mi42 min 60°F 41°F
UPBC1 48 mi36 min WNW 4.1 G 7
MZXC1 - 9415102 - Martinez-Amorco CA 48 mi36 min WNW 8 G 9.9 60°F 58°F1012.5 hPa42°F
AAMC1 - 9414750 - Alameda, CA 49 mi36 min W 8 G 12 62°F 60°F1012.8 hPa
LNDC1 49 mi36 min NW 7 G 12 62°F 1013.3 hPa

Wind History for Point Reyes, CA
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NW12
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NW32
G39
NW26
G36
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G33
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NW28
G34
NW23
G31
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G31
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G31

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Santa Rosa, Santa Rosa Sonoma County Airport, CA20 mi31 minSW 710.00 miPartly Cloudy67°F37°F33%1011.8 hPa
Petaluma Municipal Airport, CA20 mi29 minW 810.00 miFair61°F41°F48%1014.2 hPa
Novato / Gnoss Field, CA24 mi29 minNE 3 miFair64°F39°F40%1013.5 hPa

Wind History from O69 (wind in knots)
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Last 24hrSE3CalmNW4CalmCalmCalmNW3CalmNW3CalmCalmN3CalmCalmCalmCalmNW3CalmS3CalmCalmN6W9W12
1 day agoW21
G28
W16
G28
W16
G25
W15
G20
NW7W13
G17
W8NW4NW4NW5NW3NW6NW3CalmCalmCalmCalmW7CalmCalmS3E7CalmSE4
2 days agoW11
G15
W9W7NW8
G14
W11W7W10W7W8NW5W3W9W10W6NW7NW5NW4NW5W12W15
G19
W16
G22
W16
G21
W20
G27
W16
G25

Tide / Current Tables for Tomales Bay entrance, California
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Tomales Bay Entrance
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Sun -- 02:32 AM PST     2.22 feet Low Tide
Sun -- 04:09 AM PST     Moonset
Sun -- 06:44 AM PST     Sunrise
Sun -- 08:18 AM PST     4.84 feet High Tide
Sun -- 02:47 PM PST     Moonrise
Sun -- 03:27 PM PST     -0.11 feet Low Tide
Sun -- 06:05 PM PST     Sunset
Sun -- 10:07 PM PST     3.96 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
32.62.32.32.63.23.94.54.84.74.33.42.41.30.4-0.1-00.51.32.33.13.743.8

Tide / Current Tables for Point Reyes, California Current
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Point Reyes
Click for Map
Sun -- 12:34 AM PST     -0.65 knots Max Ebb
Sun -- 03:23 AM PST     0.00 knots Slack
Sun -- 04:09 AM PST     Moonset
Sun -- 06:22 AM PST     0.79 knots Max Flood
Sun -- 06:44 AM PST     Sunrise
Sun -- 08:59 AM PST     -0.00 knots Slack
Sun -- 12:24 PM PST     -1.20 knots Max Ebb
Sun -- 02:47 PM PST     Moonrise
Sun -- 04:07 PM PST     0.00 knots Slack
Sun -- 06:05 PM PST     Sunset
Sun -- 07:19 PM PST     1.05 knots Max Flood
Sun -- 10:13 PM PST     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.6-0.6-0.5-0.20.30.60.80.70.5-0-0.6-1-1.2-1.2-1-0.6-0.10.50.9110.70.1-0.4

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 (18,4,5,8)
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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.