Monday, March30, 2020
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Marine Weather and Tides
Inverness, CA

Version 3.4
NOTICE
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 6:57AMSunset 7:32PM Sunday March 29, 2020 10:14 PM PDT (05:14 UTC) Moonrise 9:03AMMoonset 11:46PM Illumination 36% Phase: Waxing Crescent; Moon at 6 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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PZZ545 Coastal Waters From Point Reyes To Pigeon Point California Out To 10 Nm- 905 Pm Pdt Sun Mar 29 2020
Tonight..W winds up to 10 kt. Wind waves 1 to 2 ft. W swell around 3 ft at 11 seconds.
Mon..SW winds up to 10 kt. Wind waves 1 ft. W swell around 3 ft at 11 seconds. A slight chance of rain.
Mon night..W winds 5 to 10 kt. Wind waves 1 ft. W swell 3 to 4 ft at 11 seconds.
Tue..NW winds 5 to 15 kt. Wind waves 2 to 3 ft. NW swell 4 to 6 ft at 12 seconds.
Tue night..NW winds 15 to 20 kt with gusts up to 25 kt. Wind waves 5 to 6 ft. NW swell 4 to 6 ft at 13 seconds.
Wed..NW winds 10 to 20 kt with gusts up to 25 kt. Wind waves 1 to 2 ft. NW swell 4 to 6 ft at 12 seconds and sw around 2 ft at 19 seconds.
Wed night..NW winds 10 to 20 kt with gusts up to 25 kt. Wind waves 2 to 3 ft. NW swell 3 to 5 ft at 11 seconds.
Thu..NW winds 10 to 20 kt with gusts up to 25 kt. Wind waves 1 to 2 ft. NW swell 4 to 6 ft and S around 2 ft.
Fri..NW winds 5 to 15 kt. Wind waves 1 to 2 ft. NW swell 4 to 6 ft and S around 2 ft.
...san francisco bar/fourfathom bank forecast..... In the deep water channel...seas 4 to 5 ft with a dominant period of 12 seconds. Across the bar...seas 5 to 6 ft with a dominant period of 8 seconds. Maximum ebb current of 0.9 kt at 09:31 pm Sunday and 2.8 kt at 08:25 am Monday.
PZZ500 905 Pm Pdt Sun Mar 29 2020
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Low preesure off the pacific northwest and high pressure off the central and southern california coast will result in stronger winds over the southern waters off big sur. As the high builds norhward by midweek northwest winds will increase. Mixed swell will persist with a moderate northwest swell and a light southwesterly swell.


7 Day Forecast for Marine Location Near Inverness CDP, CA
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location: 38.11, -122.87     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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FXUS66 KMTR 300408 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 908 PM PDT Sun Mar 29 2020

SYNOPSIS. Fog is possible in the valleys overnight, especially in the North Bay. A weak weather system may bring light rain to the North Bay on Monday while areas to the south remain dry. Dry conditions, along with seasonable temperatures, are forecast for most of the remainder of the week, although there are some signs of rain returning by late Friday or Friday night.

DISCUSSION. As of 9:05 PM PDT Sunday . Shower activity quickly dissipated after sunset this evening. Now that the upper trough responsible for today's showers has moved well to our east, any additional shower activity overnight is highly unlikely. However, a few sprinkles overnight can't be ruled out given that the latest NAM and HRRR both show isolated light precip persisting. Primary concern overnight is for late night fog development where clouds clear. Fog late tonight and Monday morning is most likely in the North Bay Valleys.

Evening IR satellite imagery shows the next system moving inland to our north across the Pacific Northwest. Latest short-term models indicate that northern Sonoma County and northern Napa County could see some light rain from this system on Monday. Elsewhere, Monday is expected to be a dry day under partly cloudy skies with seasonable temperatures.

Dry weather should continue region-wide for most of the remainder of the work week. The warming trend that was expected for much of the week ahead now looks as though it may not materialize. Previous model runs had forecast a building upper ridge near the West Coast through much of the week. Latest models now maintain a cyclonic flow aloft over California as a longwave trough persists just to our east. Thus, only slightly warmer temperatures are anticipated from Tuesday through Friday, with high temperatures mostly remaining in the 60s. In addition, forecast confidence in dry weather through the week has diminished as the latest deterministic model runs of the GFS and ECMWF indicate rain potential across at least the northern portion of our area late Friday or Friday night.

Longer range models indicate mostly dry conditions next weekend, but then the potential for development of a wet pattern during the following week.

AVIATION. as of 4:30 PM PDT Sunday . Showers decreasing this afternoon as upper level low moves south of the district. However abundant low-level moisture will allow MVFR cigs to reform tonight. In addition models still show a few stray showers mainly over the coastal hills and MRY through 06Z. Patchy fog possible in the North Bay late tonight. The next system will bring rain to the North Bay Monday afternoon.

Vicinity of KSFO . VFR/MVFR with cigs 4000-5000 ft lowering to 3000-4000 ft after 06Z. West to northwest winds 10-15 kt decreasing after 04Z.

SFO Bridge Approach . Similar to KSFO.

Monterey Bay Terminals . Cigs above 5000 ft lowering to near MVFR range tonight.

MARINE. As of 9:05 PM PDT Sunday . Low pressure off the Pacific Northwest and high pressure off the central and southern California coast will result in stronger winds over the southern waters off Big Sur. As the high builds northward by midweek northwest winds will increase. Mixed swell will persist with a moderate northwest swell and a light southwesterly swell.

MTR WATCHES/WARNINGS/ADVISORIES. Tngt. NONE.



PUBLIC FORECAST: Dykema AVIATION: W Pi MARINE: W Pi

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 25 mi45 min WNW 12 G 14 54°F 56°F1022.1 hPa
46013 - Bodega Bay - 48NM North Northwest of San Francisco, CA 25 mi45 min WNW 9.7 G 12 54°F1021.8 hPa
46237 - San Francisco Bar, CA (142) 26 mi75 min 56°F3 ft
TIBC1 - Tiburon Pier, San Francisco Bay, CA 27 mi71 min Calm 53°F 1021 hPa
RCMC1 - 9414863 - Richmond, CA 28 mi75 min WNW 4.1 G 7 55°F 57°F1020.9 hPa (+1.6)
PPXC1 - 9414847 - Richmond (Point Potrero), CA 30 mi75 min W 7 G 9.9 56°F 1021.4 hPa (+1.4)
FTPC1 - 9414290 - San Francisco, CA 30 mi75 min 59°F
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 32 mi75 min WNW 8 G 12 56°F 1020.8 hPa (+1.7)
PXSC1 33 mi75 min 55°F 51°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 33 mi75 min WSW 7 G 11 54°F 1020.3 hPa (+1.6)
46214 - Point Reyes, CA (029) 34 mi45 min 55°F4 ft
OKXC1 - 9414776 - Oakland (Berth 34), CA 35 mi75 min WNW 8 G 9.9 54°F 1021.4 hPa (+1.7)
OBXC1 35 mi75 min 55°F 51°F
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 36 mi75 min W 8 G 8.9
LNDC1 38 mi75 min W 4.1 G 7 55°F 1021.3 hPa (+1.7)
AAMC1 - 9414750 - Alameda, CA 38 mi75 min W 5.1 G 8 55°F 58°F1021.4 hPa (+1.7)
MZXC1 - 9415102 - Martinez-Amorco CA 40 mi75 min WSW 9.9 G 12 55°F 57°F1020.9 hPa (+1.5)
UPBC1 40 mi75 min W 9.9 G 13
PCOC1 - 9415144 - Port Chicago, CA 44 mi75 min WSW 8.9 G 12 54°F 58°F1020.5 hPa (+1.5)
SFXC1 - San Francisco Bay Reserve, CA 45 mi90 min WNW 6

Wind History for Point Reyes, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Petaluma Municipal Airport, CA17 mi20 minN 010.00 miFair46°F46°F100%1022 hPa
Novato / Gnoss Field, CA17 mi20 minN 010.00 miFair50°F48°F94%1022 hPa

Link to 5 minute data for KDVO

Wind History from DVO (wind in knots)
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1 day agoCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmE4E6S6CalmS5SW8SW8CalmCalm
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SW16SW1146N4

Tide / Current Tables for Inverness, Tomales Bay, California
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Inverness
Click for Map
Mon -- 12:46 AM PDT     Moonset
Mon -- 04:12 AM PDT     4.61 feet High Tide
Mon -- 06:58 AM PDT     Sunrise
Mon -- 10:42 AM PDT     Moonrise
Mon -- 11:50 AM PDT     0.22 feet Low Tide
Mon -- 06:43 PM PDT     3.18 feet High Tide
Mon -- 07:33 PM PDT     Sunset
Mon -- 11:31 PM PDT     2.90 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.83.33.84.34.64.54.13.42.51.50.80.30.20.511.72.32.83.13.23.13.132.9

Tide / Current Tables for Point Reyes, California Current
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Point Reyes
Click for Map
Mon -- 12:46 AM PDT     Moonset
Mon -- 01:32 AM PDT     0.47 knots Max Flood
Mon -- 04:04 AM PDT     -0.00 knots Slack
Mon -- 06:59 AM PDT     Sunrise
Mon -- 07:50 AM PDT     -1.03 knots Max Ebb
Mon -- 10:43 AM PDT     Moonrise
Mon -- 11:45 AM PDT     0.00 knots Slack
Mon -- 02:47 PM PDT     0.66 knots Max Flood
Mon -- 06:27 PM PDT     -0.00 knots Slack
Mon -- 07:34 PM PDT     Sunset
Mon -- 08:29 PM PDT     -0.43 knots Max Ebb
Mon -- 11:19 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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0.30.40.50.30-0.3-0.6-0.9-1-0.8-0.5-0.20.10.40.60.70.60.40.1-0.2-0.4-0.4-0.2-0

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 San Francisco/Monterey Bay Area, CA (1,6,7,8)
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Ground Weather Radar Station Sacramento, CA
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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.