Sunday, December8, 2019
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Marine Weather and Tides
Lucerne, CA

Version 3.4
NOTICE
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 7:15AMSunset 4:49PM Sunday December 8, 2019 7:33 PM PST (03:33 UTC) Moonrise 2:57PMMoonset 3:34AM Illumination 92% Phase: Waxing Gibbous; Moon at 12 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 Coastal Waters From Point Arena To Point Reyes California Out To 10 Nm- 236 Pm Pst Sun Dec 8 2019
This afternoon..NW winds 10 to 20 kt with gusts up to 25 kt. Wind waves 3 to 4 ft. W swell 5 to 7 ft at 11 seconds.
Tonight..N winds 5 to 15 kt. Wind waves 1 to 2 ft. W swell 4 to 6 ft at 10 seconds.
Mon..NW winds 5 to 10 kt. Wind waves 1 ft. W swell 4 to 6 ft at 15 seconds.
Mon night..NW winds up to 10 kt. Wind waves 1 ft. W swell 4 to 6 ft at 15 seconds and S around 2 ft at 16 seconds.
Tue..S winds up to 10 kt. Wind waves 1 to 2 ft. W swell 3 to 5 ft at 15 seconds and S around 2 ft at 16 seconds. A chance of rain.
Tue night..SE winds 10 to 20 kt with gusts up to 25 kt. Wind waves 4 to 5 ft. W swell 7 to 9 ft at 15 seconds and S around 2 ft at 15 seconds. A chance of rain.
Wed..SE winds 10 to 20 kt. Wind waves 1 to 2 ft. W swell 6 to 8 ft and S around 2 ft.
Thu..S winds up to 10 kt. Wind waves 1 ft. W swell 10 to 12 ft.
PZZ500 236 Pm Pst Sun Dec 8 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Most showers have dissipated, though an isolated light rain near the big sur coast can still be seen on radar. Winds are out of the northwest and will be breezy into the evening, but will weaken through the night as high pressure builds. Tuesday night into Wednesday morning is still forecast to see the return of rain showers and southerly winds. The moderate west swell will continue tonight. A northwest swell arrives on Monday and gradually builds throughout the coming week.


7 Day Forecast for Marine Location Near Lucerne, CA
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location: 39.18, -122.64     debug


Area Discussion for - Sacramento, CA
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FXUS66 KSTO 082234 AFDSTO

Area Forecast Discussion National Weather Service Sacramento CA 234 PM PST Sun Dec 8 2019

SYNOPSIS. Lingering rain and mountain snow showers continue this afternoon, with drier weather returning late this evening. High pressure builds over the region on Monday, which will lead to a period of dry conditions and near average temperatures. More widespread precipitation could return late in the week.

DISCUSSION. Water vapor imagery and mid-level height fields show a positively-tilted trough slipping southward through central California. Cool temperatures aloft combined with daytime heating has fueled scattered showers generally south of Highway 50. A few of the more robust cells may produce a rumble of thunder or two. Across the higher terrain, generally above 5,500 feet, any such snow shower may briefly reduce visibilities. All of this activity should wind down by the evening hours as the upper low shifts farther south along with the loss of diurnal heating. Some residual cloud cover will likely linger into the evening with skies gradually clearing overnight. At this point expecting Valley fog to form given the level of moisture sitting on the ground and in agriculture. This would include the Sacramento and northern San Joaquin Valleys with any fog likely mixing out by mid/late Monday morning.

Heights will continue to build on Monday as an offshore ridge moves through. This ensures a period of dry weather to start the week with near average temperatures. The ridge axis crosses the state early Tuesday before a weak shortwave enters the picture for Tuesday evening into the following morning. Moisture seems to be meager so precipitation will be light, mainly focused over the northern Sacramento Valley and into the higher terrain. Any snowfall will lead to little to no accumulations. Lingering precipitation should diminish by midday Wednesday with the trough shifting into southern Nevada. ~BRO

EXTENDED DISCUSSION (Thursday THROUGH Sunday). We will see zonal flow for the start of the extended period. A short wave tracking into the PacNW Thursday will push a cold front into the region. This will bring the chance for some light showers over the higher elevations with the best chances north of I-80. Snow levels will be high and most of the activity will fall as rain. A stronger trough will dig into the area on Friday. Ensembles are in pretty good agreement with pushing a cold front south through the area Friday night. This will be the best chances for widespread precip activity. The trough axis will then push through on Saturday and this is going to keep widespread shower activity in the mountains throughout the day. Snow levels start out well above pass level but will be falling on Saturday and we could see some light snow down to pass level Saturday afternoon. We also could see breezy southerly winds Saturday morning/afternoon as the trough pushes east through the area.

Short wave riding builds in on Sunday and continues into Monday with dry weather expected. Temperatures will mainly be near average throughout the period.

-CJM

AVIATION. Scattered showers will be possible for KSCK and KMOD until 23z. MVFR conditions are expected until 23z for southern terminals due to low cigs, locally lower vis and cigs in any showers. Skies clear overnight with fog developing KMYV south. Low vis is expected from 10z to 17z brining widespread MVFR conditions with localized IFR. Winds remain under 10 knots.

STO WATCHES/WARNINGS/ADVISORIES. None.


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ANVC1 - 9416841 - Arena Cove, CA 60 mi70 min ENE 1 G 1.9 53°F 54°F1018.7 hPa
46014 - PT ARENA - 19NM North of Point Arena, CA 71 mi44 min N 12 G 16 55°F 55°F6 ft1018.9 hPa53°F

Wind History for Arena Cove, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ukiah Municipal Airport, CA30 mi98 minN 010.00 miFair53°F48°F86%1017.8 hPa

Link to 5 minute data for KUKI

Wind History from UKI (wind in knots)
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Last 24hrSE4CalmS4S4SE3CalmS4CalmS4S5CalmN3CalmCalmCalmCalmCalmCalmSW5CalmW4NW4CalmCalm
1 day agoS11S6S6S5S7SE8S5SE11S10
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Tide / Current Tables for Fort Ross, California
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Fort Ross
Click for Map
Sun -- 01:32 AM PST     1.81 feet Low Tide
Sun -- 03:35 AM PST     Moonset
Sun -- 07:17 AM PST     Sunrise
Sun -- 07:43 AM PST     5.58 feet High Tide
Sun -- 02:46 PM PST     0.49 feet Low Tide
Sun -- 03:00 PM PST     Moonrise
Sun -- 04:51 PM PST     Sunset
Sun -- 09:01 PM PST     4.09 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.21.91.92.33.144.95.45.65.24.43.32.11.20.60.50.81.52.43.23.94.13.93.5

Tide / Current Tables for Salt Point, California Current
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Salt Point
Click for Map
Sun -- 03:06 AM PST     0.00 knots Slack
Sun -- 03:36 AM PST     Moonset
Sun -- 06:01 AM PST     0.80 knots Max Flood
Sun -- 07:18 AM PST     Sunrise
Sun -- 09:00 AM PST     -0.00 knots Slack
Sun -- 12:01 PM PST     -1.15 knots Max Ebb
Sun -- 03:00 PM PST     Moonrise
Sun -- 04:03 PM PST     0.00 knots Slack
Sun -- 04:52 PM PST     Sunset
Sun -- 06:58 PM PST     0.87 knots Max Flood
Sun -- 10:02 PM PST     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.7-0.6-0.4-00.40.70.80.70.5-0-0.6-1-1.2-1.1-0.8-0.5-00.50.80.90.80.50-0.4

Weather Map
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wmap_P
GEOS Local Image of CentralWestCoast    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Sacramento, CA (22,6,7,8)
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Ground Weather Radar Station Beal AFB, CA
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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.