Friday, October20, 2017 L-36.com


Marine Weather and Tides
Geyserville, CA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
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.

Sunrise 7:25AMSunset 6:26PM Friday October 20, 2017 9:19 AM PDT (16:19 UTC) Moonrise 7:11AMMoonset 6:24PM 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- 906 Am Pdt Fri Oct 20 2017
.small craft advisory in effect through Saturday morning...
Today..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. W swell 14 to 17 ft at 17 seconds.
Tonight..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. W swell 13 to 16 ft at 16 seconds.
Sat..NE winds 10 kt...becoming sw in the afternoon. Wind waves 2 ft or less. NW swell 10 to 13 ft at 14 seconds.
Sat night..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 9 to 11 ft at 14 seconds.
Sun..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. W swell 8 to 10 ft at 12 seconds.
Mon..NW winds 10 to 20 kt. Wind waves 2 to 4 ft. W swell 9 to 12 ft.
Tue..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 7 to 9 ft.
PZZ500 906 Am Pdt Fri Oct 20 2017
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Lighter winds will persist in the wake of a cold front that is passing through the coastal waters tonight. A long period northwesterly swell will accompany this system creating hazardous seas for mariners operating small crafts. Mariners are urged to use extreme caution if out at sea as hazardous seas are forecast to persist over the next few days.

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


Area Discussion for - Sacramento, CA
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Fxus66 ksto 201110
afdsto
area forecast discussion
national weather service sacramento ca
410 am pdt Fri oct 20 2017

Synopsis
Frontal system bringing rain and snow to the sierra this morning.

A few inches of snow possible above 7000 feet. Showers possible
northern mountains through Saturday. Warming temperatures through
early next week. Slightly cooler temperatures for the second half
of the week but remaining dry and warmer than normal.

Discussion
Back edge of frontal band dropping southeast through northern
california now along a line from about blue canyon to modesto.

Precipitation amounts with this system have maxed out around 1
inch with around 1 2 inch common. The front will drop southeast of
the CWA by 18z. Models bring another shortwave system through the
pacific northwest this afternoon for a continued threat of
showers over the northern mountains through this evening.

Temperatures continue to cool today with daytime highs expected
to drop to about 10 to 15 degrees below normal. Upper ridging will
bring some warming on Saturday but another shortwave riding over
this ridge will bring another threat of light showers over the
northern mountains again through the day. The upper ridge
continues to build over the west coast on Sunday for more warming
with any precipitation threat being pushed well north of the
forecast area. Highs on Sunday with push upward to near normal for
this time of year. Daytime highs are forecast to climb another 5
to 10 degrees on Monday as the upper ridge amplifies along the
west coast.

.Extended discussion (Tuesday through Friday)
warm and dry conditions will dominate norcal during the extended
forecast period as high pressure lingers over the region. Daytime
highs will range 10-15 degrees above normal through Thursday.

Valley highs will remain in the mid to high 80s while the
foothills and mountains will range in the 70s to 80s. Could see
gusty winds Monday in the western sacramento valley as the ridge
axis increases over the west coast. Hec jbb

Aviation
Vfr conditions have returned and winds at TAF sites are on the
decline as the cold front moves eastward into the sierra. As of
10z, precipitation has moved east of most TAF sites, however, ksck
still has -ra which will end in the next hour. Light north to west winds
at TAF sites today at less than 10 kts. Jbb

Sto watches warnings advisories
Winter weather advisory until 11 am pdt this morning for west
slope northern sierra nevada-western plumas county lassen park.



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 mi110 min NNW 7.8 G 12 53°F 52°F1017.3 hPa52°F
ANVC1 - 9416841 - Arena Cove, CA 40 mi122 min E 4.1 G 5.1 48°F 52°F1017.8 hPa
PRYC1 - 9415020 - Point Reyes, CA 49 mi122 min W 1.9 G 2.9 54°F1016.8 hPa

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 mi27 minN 310.00 miPatches Fog47°F46°F100%1016.7 hPa

Wind History from STS (wind in knots)
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Last 24hrCalmCalmSW4S8S8S6SW6S5S6S6S6S8S11
G18
W7N9N4W5W8CalmS3CalmN3N7N3
1 day agoCalmSW4CalmS4S5S10S11SE9SE9SE6S4SE4SE3SE3W3W3S3CalmNW4N6CalmCalmCalmCalm
2 days agoCalmNW33S33S6S8S8S7SE7S5CalmCalmS3CalmCalmS3CalmCalmCalmCalmCalmCalmCalm

Tide / Current Tables for Fort Ross, California
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Fort Ross
Click for Map
Fri -- 05:35 AM PDT     1.46 feet Low Tide
Fri -- 07:27 AM PDT     Sunrise
Fri -- 08:11 AM PDT     Moonrise
Fri -- 11:38 AM PDT     5.67 feet High Tide
Fri -- 06:13 PM PDT     0.09 feet Low Tide
Fri -- 06:27 PM PDT     Sunset
Fri -- 07:25 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
54.73.92.92.11.51.522.93.94.95.55.65.14.12.81.50.50.10.3123.14.1

Tide / Current Tables for Salt Point, California Current
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Salt Point
Click for Map
Fri -- 01:08 AM PDT     -0.00 knots Slack
Fri -- 03:42 AM PDT     -0.98 knots Max Ebb
Fri -- 07:14 AM PDT     0.00 knots Slack
Fri -- 07:28 AM PDT     Sunrise
Fri -- 08:11 AM PDT     Moonrise
Fri -- 10:02 AM PDT     0.94 knots Max Flood
Fri -- 12:56 PM PDT     -0.00 knots Slack
Fri -- 03:55 PM PDT     -1.31 knots Max Ebb
Fri -- 06:27 PM PDT     Sunset
Fri -- 07:26 PM PDT     Moonset
Fri -- 07:45 PM PDT     0.00 knots Slack
Fri -- 10:43 PM PDT     1.09 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.70.1-0.5-0.9-1-0.8-0.5-0.10.40.80.90.80.5-0-0.7-1.2-1.3-1.2-0.9-0.40.10.711.1

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 Sacramento, CA (12,3,4,5)
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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.