Thursday, October19, 2017 L-36.com


Marine Weather and Tides
Hayfork, 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 6:23PM Thursday October 19, 2017 2:22 AM PDT (09:22 UTC) Moonrise 6:12AMMoonset 5:51PM Illumination 1% Phase: Waning Crescent; Moon at 29 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- 903 Pm Pdt Wed Oct 18 2017
.small craft advisory in effect from Thursday evening through Friday morning...
Tonight..NW winds 10 to 20 kt. Wind waves 2 to 4 ft. Mixed swell nw 4 to 5 ft at 11 seconds and sw 3 ft at 16 seconds. Patchy fog after midnight.
Thu..S winds 5 to 15 kt. Wind waves 1 to 3 ft. Mixed swell nw 4 to 6 ft at 10 seconds and sw 3 ft at 15 seconds. Patchy fog in the morning. Slight chance of rain in the morning, then chance of rain in the afternoon.
Thu night..W winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 5 to 7 ft at 19 seconds...increasing to 13 to 16 ft at 18 seconds after midnight. SWell S 3 ft. Rain in the evening, then slight chance of rain after midnight.
Fri..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. W swell 14 to 17 ft at 18 seconds. Slight chance of showers in the morning.
Fri night..NW winds 10 to 20 kt. Wind waves 2 to 4 ft. NW swell 12 to 15 ft at 16 seconds.
Sat..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 9 to 12 ft.
Sun..NW winds 10 to 20 kt. Wind waves 2 to 4 ft. W swell 8 to 10 ft.
Mon..NW winds 10 to 20 kt. Wind waves 2 to 4 ft. NW swell 8 to 10 ft.
PZZ500 903 Pm Pdt Wed Oct 18 2017
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... An approaching frontal boundary will bring increased winds and seas to the coastal waters beginning Thursday afternoon into Friday resulting in hazardous sea conditions. Winds will ramp up first Thursday afternoon with large long period swells following Thursday night into Friday. The front will also bring a chance of rain across the coastal waters.

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 182232
afdsto
area forecast discussion
national weather service sacramento ca
332 pm pdt Wed oct 18 2017

Synopsis
Dry and mild weather today. Rain chances along with high mountain
snow and cooler temperatures and gusty winds Thursday and Friday.

This will be followed by a warming trend into early next week.

Discussion
Mild and dry weather continues today, ahead of an approaching cool
trough from the gulf of alaska. This system will move in late Thursday
through Friday with widespread precipitation, much cooler
temperatures and gusty southerly winds. This system has trended
wetter in the latest model runs. The wetter mountain areas may
see as much as an inch and a half of liquid precipitation while
the valley will generally see less than a quarter inch and many
locations probably a few hundredths to a tenth of an inch. Colder
air behind the frontal band is expected to lower snow levels
below the major passes on i-80 us-50 where up to 3 to 6 inches of
snow could accumulate. This along with gusts to 55 to 65 mph over
high elevations prompted the issuing of a winter weather advisory
from 11 pm Thursday night to 11 am Friday morning.

Winds will also be gusty in the sacramento valley, especially in
the northern end. Brief gusts to 40 mph are possible Thursday
night as the cold front passes through. Strong winds will persist
longer over the mountains, with strong mid level flow.

Warm frontal clouds could return Friday night with precipitation
lingering over shasta county through the weekend. Strong ridging
begins to build for the weekend with high temperatures warming to
the low 80s in the valley by Sunday. Ek
.Extended discussion (Sunday through Wednesday)
upper level ridge will begin to build into northern california
late this weekend and into early next week and bring a return of
dry and above normal temperatures under clear skies. High
temperatures will range between 5 and 15 degrees above average
each afternoon through the middle of next week.

Aviation
Vfr conditions with light winds through 18z Thursday. Local hz fu
MVFR visibility is possible in the delta and surrounding
terminals for Thursday morning. Valley and ridge winds will
increase Thursday afternoon with an approaching system, especially
over the ridgetops and north sacramento valley.

Sto watches warnings advisories
Winter weather advisory from 11 pm Thursday to 11 am pdt Friday
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 mi42 min WNW 7.8 G 9.7 53°F 53°F1016.6 hPa53°F
ANVC1 - 9416841 - Arena Cove, CA 40 mi52 min E 2.9 G 4.1 53°F 52°F1017 hPa
PRYC1 - 9415020 - Point Reyes, CA 49 mi52 min W 5.1 G 9.9 55°F1016.2 hPa

Wind History for Arena Cove, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure

Wind History from STS (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmCalmCalmSW4CalmS4S5S10S11SE9SE9SE6S4SE4SE3SE3W3W3S3
1 day agoCalmNW3NW4CalmNW3N4NW3CalmNW33S33S6S8S8S7SE7S5CalmCalmS3CalmCalmS3
2 days agoCalmCalmCalmCalmCalmCalmCalmCalmCalmS3CalmS3S4S5S3SW3CalmS3CalmNW5NW4W4CalmW3

Tide / Current Tables for Fort Ross, California
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Fort Ross
Click for Map
Thu -- 04:58 AM PDT     1.10 feet Low Tide
Thu -- 07:12 AM PDT     Moonrise
Thu -- 07:26 AM PDT     Sunrise
Thu -- 11:09 AM PDT     5.73 feet High Tide
Thu -- 12:12 PM PDT     New Moon
Thu -- 05:35 PM PDT     0.22 feet Low Tide
Thu -- 06:28 PM PDT     Sunset
Thu -- 06:53 PM PDT     Moonset
Thu -- 11:52 PM PDT     4.98 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.94.23.12.11.31.11.42.23.34.45.35.75.54.73.52.110.30.30.81.82.944.7

Tide / Current Tables for Salt Point, California Current
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Salt Point
Click for Map
Thu -- 12:21 AM PDT     -0.00 knots Slack
Thu -- 03:02 AM PDT     -1.05 knots Max Ebb
Thu -- 06:35 AM PDT     0.00 knots Slack
Thu -- 07:12 AM PDT     Moonrise
Thu -- 07:27 AM PDT     Sunrise
Thu -- 09:28 AM PDT     1.02 knots Max Flood
Thu -- 12:12 PM PDT     New Moon
Thu -- 12:22 PM PDT     -0.00 knots Slack
Thu -- 03:19 PM PDT     -1.28 knots Max Ebb
Thu -- 06:29 PM PDT     Sunset
Thu -- 06:53 PM PDT     Moonset
Thu -- 07:04 PM PDT     0.00 knots Slack
Thu -- 10:03 PM PDT     1.11 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.2-0.4-0.9-1-1-0.7-0.30.20.7110.70.2-0.4-1-1.3-1.2-1-0.6-00.511.11

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 (5,6,7,8)
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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.