Monday, March27, 2017 L-36.com


Marine Weather and Tides
Geyserville, 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 7:00AMSunset 7:32PM Monday March 27, 2017 7:40 AM PDT (14:40 UTC) Moonrise 6:02AMMoonset 6:20PM Illumination 0% Phase: New Moon; Moon at 0 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- 254 Am Pdt Mon Mar 27 2017
.small craft advisory in effect from noon pdt today through Tuesday afternoon...
Today..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. W swell 6 to 8 ft at 11 seconds. Slight chance of showers in the morning.
Tonight..NW winds 15 to 25 kt. Wind waves 4 to 6 ft. W swell 9 to 11 ft at 11 seconds.
Tue..NW winds 15 to 25 kt. Wind waves 4 to 6 ft. W swell 8 to 10 ft at 11 seconds.
Tue night..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. W swell 10 to 12 ft at 13 seconds.
Wed..NW winds 15 to 25 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. NW swell 9 to 11 ft.
Fri..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. NW swell 8 to 10 ft.
PZZ500 254 Am Pdt Mon Mar 27 2017
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Northwest winds will increase this afternoon through at least Tuesday as a strong surface pressure gradient builds across the region. At the same time, a building northwest swell will pass through the waters. Typical gusty spring time northwest winds will continue at least through midweek and likely through Friday as the next weather system will likely increase the surface pressure gradient once again.

7 Day Forecast for Marine Location Near Geyserville, CA
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location: 38.71, -123     debug


Area Discussion for - Sacramento, CA
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Fxus66 ksto 271133
afdsto
area forecast discussion
national weather service sacramento ca
433 am pdt Mon mar 27 2017

Synopsis
Weather system exits the region today with dry and milder weather
expected for norcal much of the week. Another system will brush
through the region Thursday with a few showers.

Discussion
Radar shows some lingering showers over the northern sierra from
about butte/plumas counties southward while much of the valley has
cleared out. Temperatures are a little cooler compared to 24 hours
ago and generally range from the upper 20s and 30s in the
mountains to the 40s and lower 50s elsewhere.

Most remaining showers expected to taper off early this morning
over the sierra as the main upper trough shifts east. However,
high-res models indicate a few may linger into this afternoon as a
last batch of energy (presently along the oregon coast) shifts
southeastward along the backside of the exiting trough. While some
residual travel impacts may linger this morning, most precip will
end and the remaining winter weather advisories will be dropped
at 5 am pdt.

Upper ridging along with northerly flow will then bring warming
and drying to interior norcal into mid-week. Northerly winds will
be breezy at times the next several days across the central
valley.

High temperatures will return to around average by Tuesday, then
warm about 5 more degrees on Wednesday.

Another fast moving weather system is forecast to clip the area
later Wednesday into Thursday. Most showers with this one are
expected over the mountains. It will bring cooler temperatures for
Thursday along with another round of breezy north winds as it too
moves to the east.

.Extended discussion (Friday through Monday)
dry weather returns to the region on Friday as the closed upper
low shifts eastward. An "inside slider" pattern is likely to
develop, hinting at breezy north winds across interior northern
california.

High pressure builds across california next weekend, bringing a
strong but relatively brief warming trend. Temperatures will be on
the order of 10 degrees warmer than normal in this timeframe.

Longer-range models diverge early next week. The GFS & gem both
hint at some flavor of low pressure system moving through the
region, whereas the ECMWF maintains a stronger ridge. With a high
degree of uncertainty, our forecast reflects a blend of the
various solutions. Dang

Aviation
Weather system has begun to shift eastward out of the region.

Valley TAF sites will remain mostly dry today, though patchy
MVFR/ifr conditions will be possible through the morning. Ifr/lifr
conditions over the sierra will continue into the afternoon.

South winds up to 10 kt will shift to the north 5-15 kt this
afternoon. Dang

Sto watches/warnings/advisories
Winter weather advisory until 5 am pdt early this morning for
western plumas county/lassen park.

Winter weather advisory until 8 am pdt this morning for west
slope northern sierra nevada.



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 36 mi30 min NW 16 G 19 54°F 55°F1023 hPa49°F
ANVC1 - 9416841 - Arena Cove, CA 40 mi40 min SSW 1 G 4.1 50°F 54°F1023.4 hPa (+1.4)

Wind History for Arena Cove, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Santa Rosa, Santa Rosa Sonoma County Airport, CA17 mi47 minW 310.00 miShallow Fog40°F39°F100%1021 hPa

Wind History from STS (wind in knots)
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Last 24hrCalmCalmS3S7S6S5S8S7S13S6S8SE7S5W83W6W6CalmW3W5N3CalmSW5W3
1 day agoW3NE3NW3NE3CalmSE4SW4S3SW8SW9SW7SW5SW4S3SE5S3SE3W3CalmW4CalmCalmCalmCalm
2 days agoSE14
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S8SE11S7S10S6S6CalmW4SW6S5S4S4CalmCalmNW4W3W3NW3NW5CalmW3W3

Tide / Current Tables for Fort Ross, California
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Fort Ross
Click for Map
Mon -- 05:05 AM PDT     0.84 feet Low Tide
Mon -- 07:03 AM PDT     Moonrise
Mon -- 07:05 AM PDT     Sunrise
Mon -- 11:07 AM PDT     5.48 feet High Tide
Mon -- 05:22 PM PDT     0.17 feet Low Tide
Mon -- 07:21 PM PDT     Moonset
Mon -- 07:32 PM PDT     Sunset
Mon -- 07:59 PM PDT     New Moon
Mon -- 11:38 PM PDT     5.52 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
54.33.221.20.81.11.934.155.55.24.43.21.80.80.20.31.12.23.54.65.4

Tide / Current Tables for Salt Point, California Current
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Salt Point
Click for Map
Mon -- 12:18 AM PDT     -0.00 knots Slack
Mon -- 03:00 AM PDT     -1.24 knots Max Ebb
Mon -- 06:29 AM PDT     0.00 knots Slack
Mon -- 07:03 AM PDT     Moonrise
Mon -- 07:05 AM PDT     Sunrise
Mon -- 09:23 AM PDT     1.15 knots Max Flood
Mon -- 12:27 PM PDT     -0.00 knots Slack
Mon -- 03:19 PM PDT     -1.38 knots Max Ebb
Mon -- 06:51 PM PDT     0.00 knots Slack
Mon -- 07:21 PM PDT     Moonset
Mon -- 07:32 PM PDT     Sunset
Mon -- 07:59 PM PDT     New Moon
Mon -- 09:46 PM PDT     1.19 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.2-0.5-1-1.2-1.1-0.7-0.30.30.81.11.10.80.3-0.4-1-1.4-1.3-1-0.50.10.71.11.21

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 Sacramento, CA (10,2,3,4)
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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.