Tuesday, March28, 2017 L-36.com


Marine Weather and Tides
Sea Ranch, CA

Version 3.4
What's New / NOTES
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.
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.

Sunrise 6:59AMSunset 7:34PM Tuesday March 28, 2017 8:58 AM PDT (15:58 UTC) Moonrise 6:41AMMoonset 7:32PM Illumination 1% Phase: Waxing Crescent; Moon at 1 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- 813 Am Pdt Tue Mar 28 2017
.small craft advisory in effect through Wednesday afternoon...
Today..NW winds 15 to 25 kt. Wind waves 4 to 6 ft. NW swell 9 to 11 ft at 17 seconds.
Tonight..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. NW swell 9 to 11 ft at 16 seconds.
Wed..NW winds 15 to 25 kt...decreasing to 10 to 20 kt in the afternoon. Wind waves 3 to 5 ft. W swell 9 to 11 ft at 15 seconds.
Wed night..NW winds 10 to 20 kt. Wind waves 3 to 5 ft. W swell 8 to 10 ft at 15 seconds. Slight chance of showers.
Thu..NW winds 20 to 30 kt. Wind waves 4 to 6 ft. W swell 9 to 11 ft at 14 seconds.
Fri..NW winds 20 to 30 kt. Gusts up to 45 kt. Wind waves 4 to 6 ft. NW swell 9 to 11 ft.
Sat..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. NW swell 8 to 10 ft.
PZZ500 813 Am Pdt Tue Mar 28 2017
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... A long period northwest swell...17 to 18 seconds...will move through the coastal waters today. Moderate and gusty northwest winds will continue for the next several days as a strong surface pressure gradient builds in the region.

7 Day Forecast for Marine Location Near Sea Ranch, CA
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location: 38.76, -123.54     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 281529
afdmtr
area forecast discussion
national weather service san francisco bay area
829 am pdt Tue mar 28 2017

Synopsis A ridge of high pressure will build into our region
and provide warmer weather the next couple of days. At the same
time locally breezy northwesterly winds will continue. Cooler
conditions are likely on Thursday as a system moves through
northern california. The ridge will rebuild by the end of the
week leading to another increase in temperatures.

Discussion As of 08:25 am pdt Tuesday... Quiet weather
conditions prevail over the region this morning as high pressure
builds over the eastern pacific. Aside from a slight increase in
high level clouds, mostly sunny conditions will prevail today
across the region along with warmer temperatures. The ongoing
forecast remains on track and no updates are needed at this time.

Prev discussion As of 3:00 am pdt Tuesday... Although temperatures
will be warmer today as a ridge of high pressure builds into our
region, it won't feel very warm as breezy northwesterly conditions
can be expected from later this morning to the evening. In fact,
surface gradients are still impressive at this hour with sfo-acv
at 5.5 mb. Winds of 15 to 25 mph can be expected in most spots
with local gusts over 30 mph likely. Temperatures will generally
be in the 60s to lower 70s at the coast with 70s inland.

Temperatures will see another 3 to 5 degree increase in most spots
for Wednesday as 925 mb values increase another 2c.

On Thursday an inside slider will move from northern california
down into nevada. Due to the track virtually all of the showers
should stay to our north and east. However, models do keep the
outside shot of light rain hitting higher elevation locations.

Kept a few mentions of pops around 20% for those spots. Bigger
impact will be another round of breezy conditions followed by
cooler temperatures. Highs will drop back into the upper 50s to
the upper 60s.

The ridge will rebuild and move back to our region starting on
Friday and continuing into the weekend. Some disagreement between
the models as far as how much warming will occur. ECMWF is running
3 to 7 degree warmer than the gfs. Based on its better
verification, the forecast was nudged toward the higher values.

Longer range guidance favors dry conditions through at least the
middle of next week. Some signs after that we will flip back to a
wetter pattern.

Aviation As of 4:30 am pdt Tuesday for 06z tafs. Moderate to
high confidence thatVFR conditions will prevail for the next 24
to 36 hours at terminals. West to northwest winds will pick up
this afternoon with gusts exceeding 20 to 25 kt possible. Mostly
clear to clear skies are expected through the next 24-36 hours
with no stratus concerns at the moment.

Vicinity of ksfo...VFR conditions expected. Increasing west to
northwest winds this afternoon with exceeding 20 to 25 kt possible
through the evening.

Sfo bridge approach... Similar to ksfo.

Monterey bay terminals... Potential for brief scattered to broken
low clouds around kmry before 15z Tuesday, but otherwiseVFR
conditions expected with west to northwest winds expected by the
afternoon.

Marine As of 08:25 am pdt Tuesday... A long period northwest
swell... 17 to 18 seconds... Will move through the coastal waters
today. Moderate and gusty northwest winds will continue for the
next several days as a strong surface pressure gradient builds
over the region.

Mtr watches/warnings/advisories
Tday Sca... Pt arena to pt reyes 0-10 nm
sca... Pt reyes to pigeon pt 0-10 nm
sca... Pigeon pt to pt pinos 0-10 nm
sca... Pt pinos to pt piedras blancas 0-10 nm
sca... Pt arena to pigeon pt 10-60 nm
sca... Pigeon pt to pt piedras blancas 10-60 nm
sca... Rough bar advisory for sf bar
sca... Mry bay from 1 pm
public forecast: rgass
aviation: rowe
marine: bam
visit us at

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ANVC1 - 9416841 - Arena Cove, CA 14 mi47 min WNW 1 G 5.1 50°F 53°F1027.6 hPa
46013 - Bodega Bay - 48NM North Northwest of San Francisco, CA 38 mi39 min NW 27 G 35 54°F 55°F1025.3 hPa49°F
46014 - PT ARENA - 19NM North of Point Arena, CA 40 mi39 min NNW 21 G 25 53°F 1027.7 hPa47°F

Wind History for Arena Cove, CA
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ukiah, Ukiah Municipal Airport, CA32 mi63 minNNW 410.00 miFair42°F39°F92%1025.9 hPa

Wind History from UKI (wind in knots)
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Last 24hrCalmSE3CalmN4NW8NW9
G20
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G17
W12W14W9
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N5N5N3CalmCalmCalmNW3CalmSW3CalmCalmCalmCalmNW4
1 day agoW3SE4S10SE9SE11
G17
S8S10SE8SE8SE7SW3CalmN4N9N5N4S3NW3CalmN4N4CalmCalmCalm
2 days agoCalmCalmCalm44NW5SW54W10W55N4CalmNW3CalmNW3CalmW3CalmCalmCalmCalmCalmE4

Tide / Current Tables for Arena Cove, Pacific Ocean, California
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Arena Cove
Click for Map
Tue -- 05:58 AM PDT     0.47 feet Low Tide
Tue -- 07:05 AM PDT     Sunrise
Tue -- 07:41 AM PDT     Moonrise
Tue -- 12:05 PM PDT     5.62 feet High Tide
Tue -- 06:10 PM PDT     0.44 feet Low Tide
Tue -- 07:35 PM PDT     Sunset
Tue -- 08:32 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.75.34.331.70.80.50.81.734.35.25.65.34.53.21.90.90.50.71.52.84.25.3

Tide / Current Tables for Point Arena, California Current
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Point Arena
Click for Map
Tue -- 12:43 AM PDT     -0.00 knots Slack
Tue -- 03:33 AM PDT     -1.36 knots Max Ebb
Tue -- 07:01 AM PDT     0.00 knots Slack
Tue -- 07:05 AM PDT     Sunrise
Tue -- 07:42 AM PDT     Moonrise
Tue -- 09:58 AM PDT     1.21 knots Max Flood
Tue -- 01:06 PM PDT     -0.00 knots Slack
Tue -- 03:54 PM PDT     -1.33 knots Max Ebb
Tue -- 07:20 PM PDT     0.00 knots Slack
Tue -- 07:35 PM PDT     Sunset
Tue -- 08:33 PM PDT     Moonset
Tue -- 10:15 PM PDT     1.16 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.4-0.2-0.9-1.3-1.3-1-0.6-00.611.210.60.1-0.6-1.1-1.3-1.1-0.7-0.20.40.91.11.1

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 (11,2,3,4)
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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.