Sunday, September20, 2020
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Marine Weather and Tides
Geyserville, 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 6:56AMSunset 7:12PM Sunday September 20, 2020 12:38 AM PDT (07:38 UTC) Moonrise 9:47AMMoonset 8:35PM Illumination 9% Phase: Waxing Crescent; Moon at 3 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- 842 Pm Pdt Sat Sep 19 2020
.small craft advisory in effect from Sunday afternoon through late Sunday night...
Tonight..NW winds 10 to 20 kt with gusts up to 25 kt. Wind waves 3 to 4 ft. NW swell 5 to 6 ft at 7 seconds and sw around 2 ft at 15 seconds.
Sun..NW winds 10 to 20 kt with gusts up to 30 kt. Wind waves 3 to 4 ft. NW swell 4 to 6 ft at 7 seconds and sw around 2 ft at 15 seconds.
Sun night..NW winds 15 to 20 kt with gusts up to 30 kt. Wind waves 4 to 5 ft. NW swell 4 to 6 ft at 7 seconds and sw around 2 ft at 21 seconds.
Mon..NW winds 15 to 25 kt with gusts up to 30 kt. Wind waves 4 to 5 ft. NW swell 5 to 6 ft at 7 seconds and sw around 2 ft at 20 seconds.
Mon night..NW winds 15 to 25 kt with gusts up to 30 kt. Wind waves 3 to 4 ft. NW swell 4 to 6 ft at 10 seconds and sw around 2 ft at 19 seconds.
Tue..NW winds 15 to 20 kt with gusts up to 25 kt. Wind waves 3 to 4 ft. NW swell 4 to 6 ft at 11 seconds and sw around 2 ft at 18 seconds.
Tue night..NW winds 5 to 15 kt. Wind waves 1 to 2 ft. NW swell 4 to 5 ft at 11 seconds and sw around 2 ft at 18 seconds.
Wed..NW winds 5 to 15 kt. Wind waves 1 to 2 ft. NW swell 3 to 5 ft and sw around 2 ft.
Thu..NW winds 5 to 15 kt. Wind waves 1 to 2 ft. W swell 8 to 10 ft and sw around 2 ft.
PZZ500 842 Pm Pdt Sat Sep 19 2020
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Surface high pressure extends from the eastern pacific into the oregon coast. This will bring gusty northerly winds to the northern waters tonight through Monday. Elsewhere winds will decrease. Mixed seas will continue with a shorter period northwest swell and a moderate period south to southwest swell. A longer period southwest swell will arrive Sunday morning.


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 192100 AFDSTO

Area Forecast Discussion National Weather Service Sacramento CA 200 PM PDT Sat Sep 19 2020

SYNOPSIS. Forecast high temperatures through next week expected to range from slightly above to slightly below normal at times.

DISCUSSION. Most areas are trending warmer today over the interior with a weak northerly flow. Zonal flow over the region on Sunday will allow for some warming over todays highs. The Delta breeze will remain light through daytime Sunday but increase slightly Sunday night.

A weak system will move into the Pacific Northwest Monday and Tuesday. This will bring a cooling trend to the interior with temperatures cooling back into the mid 80s for the valley for Tuesday. The trough over the West coast should help to keep wind blowing through the Delta throughout both days generally in the 10 to 20 mph range.

EXTENDED DISCUSSION (Wednesday THROUGH Saturday).

Not much change from the night forecast package. Long range guidance continues to depict zonal flow over us while high pressure sits over southern CA and a progressive trough sets up over the PacNW. Expect generally dry conditions to prevail during this time frame with temperatures still looking to be slightly above normal for this time of year. Guidance does continue to show a trough pushing over southern OR and northern CA, but timing, intensity, and placement still differ. Followed suit with lower end PoP guidance, as ensembles looked to keep us dry.

AVIATION.

VFR conditions next 24 hours at TAF sites. Localized areas of MVFR conditions near wildfires. Winds generally under 10 kts at TAF sites.

STO WATCHES/WARNINGS/ADVISORIES. None.


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 35 mi28 min NW 16 G 18 58°F 55°F1012 hPa57°F
ANVC1 - 9416841 - Arena Cove, CA 40 mi50 min WNW 2.9 G 7 59°F 54°F1013.1 hPa

Wind History for Arena Cove, CA
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Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Santa Rosa, Santa Rosa Sonoma County Airport, CA17 mi45 minN 010.00 miFair with Haze60°F54°F80%1011.7 hPa

Link to 5 minute data for KSTS

Wind History from STS (wind in knots)
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Last 24hrCalmSE3S3SE3W3CalmCalmCalmCalmCalm4NW43S5S6W10SW7SW7CalmSE6CalmCalmCalmCalm
1 day agoS3SE3S3CalmCalmW3W3CalmCalmCalmSW4S7W8SW11W13
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2 days agoCalmSE3CalmW3CalmCalmCalmCalmCalmCalmE34S6S10SW9W11
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Tide / Current Tables for Fort Ross, California
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Fort Ross
Click for Map
Sun -- 01:29 AM PDT     5.35 feet High Tide
Sun -- 06:59 AM PDT     Sunrise
Sun -- 07:24 AM PDT     1.12 feet Low Tide
Sun -- 10:48 AM PDT     Moonrise
Sun -- 01:36 PM PDT     6.05 feet High Tide
Sun -- 07:12 PM PDT     Sunset
Sun -- 08:11 PM PDT     0.05 feet Low Tide
Sun -- 09:36 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.65.35.34.73.72.61.71.21.21.934.15.25.965.44.32.91.50.50.10.312.1

Tide / Current Tables for Salt Point, California Current
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Salt Point
Click for Map
Sun -- 02:57 AM PDT     -0.00 knots Slack
Sun -- 05:37 AM PDT     -1.18 knots Max Ebb
Sun -- 06:59 AM PDT     Sunrise
Sun -- 09:00 AM PDT     0.00 knots Slack
Sun -- 10:48 AM PDT     Moonrise
Sun -- 11:53 AM PDT     1.07 knots Max Flood
Sun -- 02:51 PM PDT     -0.00 knots Slack
Sun -- 05:57 PM PDT     -1.48 knots Max Ebb
Sun -- 07:12 PM PDT     Sunset
Sun -- 09:37 PM PDT     Moonset
Sun -- 09:39 PM PDT     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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1.210.6-0-0.7-1.1-1.2-0.9-0.500.50.91.10.90.5-0.1-0.8-1.3-1.5-1.3-0.9-0.40.20.8

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 Sacramento, 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.