Tuesday, September29, 2020
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L-36.com

Marine Weather and Tides
Stonyford, CA

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
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.

Sunrise 7:04AMSunset 6:57PM Tuesday September 29, 2020 6:17 AM PDT (13:17 UTC) Moonrise 5:27PMMoonset 3:49AM Illumination 93% 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- 403 Am Pdt Tue Sep 29 2020
Today..S winds up to 10 kt. Wind waves 1 ft. NW swell 5 to 7 ft at 16 seconds and sw 2 to 3 ft at 19 seconds. Patchy dense fog this afternoon.
Tonight..W winds up to 10 kt. Wind waves 1 ft. NW swell 5 to 6 ft at 14 seconds and sw 2 to 3 ft at 18 seconds. Patchy dense fog.
Wed..NW winds 5 to 15 kt. Wind waves 1 ft. W swell 4 to 5 ft at 12 seconds and sw 2 to 3 ft at 18 seconds.
Wed night..NW winds 10 to 20 kt with gusts up to 25 kt. Wind waves 1 to 2 ft. W swell 3 to 5 ft at 12 seconds and sw 2 to 3 ft at 16 seconds.
Thu..NW winds 10 to 20 kt with gusts up to 25 kt. Wind waves 1 to 2 ft. W swell 3 to 5 ft at 11 seconds and sw 2 to 3 ft at 16 seconds.
Thu night..NW winds 10 to 20 kt with gusts up to 25 kt. Wind waves 1 to 2 ft. W swell 7 to 8 ft at 16 seconds and sw around 2 ft at 15 seconds.
Fri..NW winds 5 to 15 kt. Wind waves 1 to 2 ft. W swell 5 to 7 ft and sw around 2 ft.
Sat..NW winds 5 to 15 kt. Wind waves 1 to 2 ft. W swell 5 to 6 ft and sw around 2 ft.
PZZ500 403 Am Pdt Tue Sep 29 2020
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Winds generally light and southerly today before turning westerly on Tuesday. Northwest winds will redevelop by mid-week. Seas will mainly be a mix of moderate northwest swell and a longer period, light southerly swell.


7 Day Forecast for Marine Location Near Stonyford, CA
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location: 39.34, -122.69     debug


Area Discussion for - Sacramento, CA
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FXUS66 KSTO 291020 AFDSTO

Area Forecast Discussion National Weather Service Sacramento CA 320 AM PDT Tue Sep 29 2020

SYNOPSIS. Above normal temperatures and very dry conditions will continue through much of the week. Areas of wildfire smoke will drift over interior Norcal for the next couple of days.

DISCUSSION. A strong and highly amplified 2+ height anomaly ridge with a 5 to 10 year return interval will remain stationary over the W coastal states into Old Mexico through the short-term forecast period. This will result in well above normal temps with max temps some 10 to 18 degrees above normal and widespread areas of moderate heat risk for this time of year. In fact, the Solano Co area may encounter high heat risk Wed/Thu as winds turn down valley and adiabatic warming effects from the Vaca Mtns result in the potential for triple digit temps there, and in the Nrn Sac Vly in the afternoons.

The strong ridge and periods of downslope winds will result in a dry air mass, but fortunately the Ely winds will weakening today with relatively a light wind regime through the rest of the forecast period. Humidity recovery will remain poor to moderate over the higher terrain due to a strong subsidence inversion.

Experimental smoke forecast indicates the areal coverage of smoke from area wildfires will spread over most of the CWA during the next couple of days. Not only will this suppress max temps in the areas of dense smoke, it will also negatively impact air quality generally over the coastal range and into the Valley over the next day or two. As the Ely gradients weaken, upslope flow may transport some smoke over the W Slope Sierra at times as well. JHM

EXTENDED DISCUSSION (Saturday THROUGH Tuesday).

Upper ridging over the area Saturday, weakens and shifts into the Great Basin Sunday as upper low approaches California then lingers along the coast early next week. This will result in dry weather with a minor cooling trend. High temperatures remain slightly above normal, but could locally be impacted by smoke from wild fires.

AVIATION.

VFR conds ovr intr NorCal exc lcl MVFR conds poss in HZ/FU vcnty of wild fires. Lcl ely sfc wnd gsts up to 30 kts poss in ern fthls til abt 18z. Swly sfc wnd gsts to 20 kts poss vcnty of Delta aft 00z, otrw sfc wnd genly blo 12 kts nxt 24 hrs.

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 62 mi48 min E 4.1 G 8.9 53°F 52°F1014.6 hPa
46014 - PT ARENA - 19NM North of Point Arena, CA 68 mi28 min SSE 12 G 14 7 ft1014 hPa

Wind History for Arena Cove, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ukiah Municipal Airport, CA30 mi22 minN 09.00 miOvercast57°F44°F62%1015.1 hPa

Link to 5 minute data for KUKI

Wind History from UKI (wind in knots)
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Last 24hrSE3CalmCalmCalmCalmCalmCalmSE4SW3SE4SE4E3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm
1 day agoCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmS3SW3W53NW4CalmCalmCalmCalmCalmCalmCalmCalm3
2 days agoCalmCalmCalmCalmW3NW10NW9
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N6NE4N3CalmN6SW3CalmNW4CalmCalmCalmNW3

Tide / Current Tables for Albion, California
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Albion
Click for Map
Tue -- 04:19 AM PDT     0.30 feet Low Tide
Tue -- 04:54 AM PDT     Moonset
Tue -- 07:09 AM PDT     Sunrise
Tue -- 11:00 AM PDT     5.30 feet High Tide
Tue -- 04:39 PM PDT     1.73 feet Low Tide
Tue -- 06:31 PM PDT     Moonrise
Tue -- 06:59 PM PDT     Sunset
Tue -- 10:33 PM PDT     5.51 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.22.91.70.80.30.411.93.14.255.354.33.32.41.81.82.233.94.85.45.4

Tide / Current Tables for Mendocino, Mendocino Bay, California
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Mendocino
Click for Map
Tue -- 04:17 AM PDT     0.30 feet Low Tide
Tue -- 04:54 AM PDT     Moonset
Tue -- 07:10 AM PDT     Sunrise
Tue -- 10:53 AM PDT     5.30 feet High Tide
Tue -- 04:37 PM PDT     1.73 feet Low Tide
Tue -- 06:31 PM PDT     Moonrise
Tue -- 06:59 PM PDT     Sunset
Tue -- 10:26 PM PDT     5.51 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.12.81.60.70.30.41.123.24.255.354.23.22.31.81.82.2344.95.45.4

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
Ground Weather Radar Station Beal AFB, CA
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weather_mapweather_map weather_map


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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 numerous 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.