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Marine Weather and Tides
Version 3.4 |
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 6:26AM | Sunset 8:01PM | Monday August 19, 2019 1:16 PM PDT (20:16 UTC) | Moonrise 9:26PM | Moonset 9:12AM | Illumination 82% |  |
PZZ540 Coastal Waters From Point Arena To Point Reyes California Out To 10 Nm- 812 Am Pdt Mon Aug 19 2019
Today..W winds 5 to 10 kt. Wind waves 1 ft. W swell around 2 ft at 15 seconds.
Tonight..NW winds 10 to 15 kt. Wind waves 1 to 2 ft. W swell around 2 ft at 15 seconds.
Tue..NW winds 15 to 20 kt. Wind waves 2 to 3 ft. NW swell 3 to 5 ft at 10 seconds.
Tue night..NW winds 15 to 20 kt with gusts up to 25 kt. Wind waves 3 to 4 ft. NW swell 2 to 4 ft at 10 seconds. Patchy fog.
Wed..NW winds 10 to 20 kt with gusts up to 25 kt. Wind waves 3 to 4 ft. NW swell 4 to 5 ft at 13 seconds. Patchy fog.
Wed night..NW winds 15 to 25 kt with gusts up to 30 kt. Wind waves 4 to 5 ft. W swell 5 to 7 ft at 12 seconds. Patchy fog.
Thu..NW winds 15 to 20 kt with gusts up to 25 kt. Wind waves 3 to 4 ft. W swell 6 to 8 ft and sw around 2 ft. Patchy fog.
Fri..NW winds 5 to 10 kt. Wind waves 1 ft. W swell 6 to 8 ft and sw around 2 ft. Patchy fog.
Today..W winds 5 to 10 kt. Wind waves 1 ft. W swell around 2 ft at 15 seconds.
Tonight..NW winds 10 to 15 kt. Wind waves 1 to 2 ft. W swell around 2 ft at 15 seconds.
Tue..NW winds 15 to 20 kt. Wind waves 2 to 3 ft. NW swell 3 to 5 ft at 10 seconds.
Tue night..NW winds 15 to 20 kt with gusts up to 25 kt. Wind waves 3 to 4 ft. NW swell 2 to 4 ft at 10 seconds. Patchy fog.
Wed..NW winds 10 to 20 kt with gusts up to 25 kt. Wind waves 3 to 4 ft. NW swell 4 to 5 ft at 13 seconds. Patchy fog.
Wed night..NW winds 15 to 25 kt with gusts up to 30 kt. Wind waves 4 to 5 ft. W swell 5 to 7 ft at 12 seconds. Patchy fog.
Thu..NW winds 15 to 20 kt with gusts up to 25 kt. Wind waves 3 to 4 ft. W swell 6 to 8 ft and sw around 2 ft. Patchy fog.
Fri..NW winds 5 to 10 kt. Wind waves 1 ft. W swell 6 to 8 ft and sw around 2 ft. Patchy fog.
PZZ500 812 Am Pdt Mon Aug 19 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Generally light winds today and tonight across the coastal waters as high pressure off the california coast weakens and a surface low develops offshore of the pacific northwest. Locally gusty winds are expected later today and into tomorrow over the inner coastal waters south of point sur. Mixed seas will continue with shorter period northwest waves at around 8 to 10 seconds, a light longer period west swell, and a light southerly swell.
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Generally light winds today and tonight across the coastal waters as high pressure off the california coast weakens and a surface low develops offshore of the pacific northwest. Locally gusty winds are expected later today and into tomorrow over the inner coastal waters south of point sur. Mixed seas will continue with shorter period northwest waves at around 8 to 10 seconds, a light longer period west swell, and a light southerly swell.
7 Day Forecast for Marine Location Near Lower Lake, CA
Hourly EDIT Helplocation: 38.89, -122.59 debug
Area Discussion for - Sacramento, CA
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus66 ksto 191015 afdsto area forecast discussion national weather service sacramento ca 315 am pdt Mon aug 19 2019 Synopsis Temperatures close to average early this week will return to above average for the second half of the week. Dry weather pattern continues. Discussion Clear skies cover the region early this morning other than some stratus nosing into the west delta from the carquinez strait. Current temperatures range from the mid to upper 40s in the colder mountain valleys to the upper 50s and 60s across the central valley. Very weak trough lingers across the region early this week maintaining temperatures close to average for mid-august with light to moderate onshore flow. Short-wave forecast to brush by to the north on Wednesday, then high pressure will strengthen and northerly flow develop in its wake leading to a return of above average temperatures across the region. Extended discussion (Friday through Monday) |
To conclude the work week, mid-level heights will rebound after the passage of a longwave trough to the north. Gradual height rises are to continue into the weekend as an expansive upper ridge takes shape over the southwestern u.S. The amount of warming this pattern shift provides is unknown given differences in the global ensembles. Most notably, the 00z ECMWF ensemble mean has maintained the more stout ridge with 500-mb heights approaching the upper 590 dm range. Meanwhile, the 06z 00z GEFS ensembles deamplify the mid-latitude flow supporting less impressive daily temperatures. At this point, it is safe to say temperatures will remain above average from Friday through the weekend and into the start of next week. Current forecast highs support readings near, to slightly above the 100 degree mark in the valleys while 80s can be found in the mountains. These numbers equate to roughly 5 to 10 degrees above climatology. Given some of the more robust ecmwf solutions, there may be room to raise these numbers. ~bro Aviation Vfr conditions expected the next 24 hours. Some brief lower ceilings possible from marine stratus through 17z, generally sacramento westward. Gusty winds up to 30 knots possible across the delta and its vicinity. Otherwise, typical diurnal wind patterns for summertime in norcal are anticipated. ~bro Sto watches warnings advisories None. |
Weather Reporting Stations
EDIT (on/off) Help NOTE: Click on distance to see the station location on a map| Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | Pressure | DewPt |
| SFXC1 - San Francisco Bay Reserve, CA | 56 mi | 92 min | W 9.9 | 69°F | 1015 hPa | 59°F | ||
| 46013 - Bodega Bay - 48NM North Northwest of San Francisco, CA | 59 mi | 27 min | NW 3.9 G 5.8 | 54°F | 3 ft | 1015.6 hPa | ||
| ANVC1 - 9416841 - Arena Cove, CA | 59 mi | 47 min | S 6 G 7 | 57°F | 54°F | 1015.7 hPa |
Wind History for Arena Cove, CA
(wind in knots) EDIT (on/off) Help| 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | |
| Last 24hr | SW G10 | SW | S G9 | -- | NW | NW G10 | NW | NW | E G6 | E | E | NE | SW | E | E | SE | E | -- | E | SW | SW | SW | S | S |
| 1 day ago | SW G9 | SW | S | S G9 | S G9 | S G7 | S G7 | E | E G8 | W G6 | S G6 | SW G6 | SW G7 | N G7 | E G7 | E G11 | E G7 | E | W | -- | S | W G4 | SW G7 | S G9 |
| 2 days ago | NW G14 | NW G15 | NW G15 | NW G16 | NW G17 | NW G11 | NW G14 | NW G10 | S G5 | W G5 | W G6 | W G8 | SW | NW G8 | NW G7 | NW G10 | W G11 | NW G9 | NW G5 | N | NW G9 | NW | SW | S |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports. Follow links for more data.| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Santa Rosa, Santa Rosa Sonoma County Airport, CA | 29 mi | 24 min | WSW 5 | 10.00 mi | Fair | 68°F | 57°F | 68% | 1014.3 hPa |
Link to 5 minute data for KSTS
Wind History from STS (wind in knots)
| 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | |
| Last 24hr | SE | SW | S | SW | S | S | S | S | S | SW | S | Calm | Calm | Calm | Calm | S | Calm | S | Calm | |||||
| 1 day ago | S | SW | SW | S G15 | S | S | S | S | S | SE | SE | S | Calm | Calm | Calm | SW | Calm | NW | W | |||||
| 2 days ago | S | S | S | S | S | S | SE | S | SE | SE | SE | Calm | S | S | S | W |
Tide / Current Tables for Napa, Napa River, Carquinez Strait, California
EDIT Weekend mode (on/off) (on/off) Help One Week of DataNapa
Click for Map
Mon -- 04:26 AM PDT 6.57 feet High Tide
Mon -- 06:27 AM PDT Sunrise
Mon -- 10:10 AM PDT Moonset
Mon -- 11:15 AM PDT 0.83 feet Low Tide
Mon -- 05:28 PM PDT 6.59 feet High Tide
Mon -- 07:57 PM PDT Sunset
Mon -- 10:24 PM PDT Moonrise
Mon -- 11:44 PM PDT 2.11 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Mon -- 04:26 AM PDT 6.57 feet High Tide
Mon -- 06:27 AM PDT Sunrise
Mon -- 10:10 AM PDT Moonset
Mon -- 11:15 AM PDT 0.83 feet Low Tide
Mon -- 05:28 PM PDT 6.59 feet High Tide
Mon -- 07:57 PM PDT Sunset
Mon -- 10:24 PM PDT Moonrise
Mon -- 11:44 PM PDT 2.11 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
| 12 am | 1 am | 2 am | 3 am | 4 am | 5 am | 6 am | 7 am | 8 am | 9 am | 10 am | 11 am | 12 pm | 1 pm | 2 pm | 3 pm | 4 pm | 5 pm | 6 pm | 7 pm | 8 pm | 9 pm | 10 pm | 11 pm |
| 2.6 | 3.5 | 4.7 | 5.8 | 6.5 | 6.5 | 5.9 | 4.9 | 3.5 | 2.3 | 1.3 | 0.9 | 1.1 | 1.9 | 3.2 | 4.6 | 5.8 | 6.5 | 6.5 | 5.9 | 5 | 3.8 | 2.8 | 2.2 |
Tide / Current Tables for Fort Ross, California
EDIT (on/off) Help One Week of DataFort Ross
Click for Map
Mon -- 01:19 AM PDT 4.96 feet High Tide
Mon -- 06:30 AM PDT Sunrise
Mon -- 07:53 AM PDT 0.80 feet Low Tide
Mon -- 10:14 AM PDT Moonset
Mon -- 02:21 PM PDT 4.98 feet High Tide
Mon -- 08:01 PM PDT Sunset
Mon -- 08:22 PM PDT 2.03 feet Low Tide
Mon -- 10:28 PM PDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Mon -- 01:19 AM PDT 4.96 feet High Tide
Mon -- 06:30 AM PDT Sunrise
Mon -- 07:53 AM PDT 0.80 feet Low Tide
Mon -- 10:14 AM PDT Moonset
Mon -- 02:21 PM PDT 4.98 feet High Tide
Mon -- 08:01 PM PDT Sunset
Mon -- 08:22 PM PDT 2.03 feet Low Tide
Mon -- 10:28 PM PDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
| 12 am | 1 am | 2 am | 3 am | 4 am | 5 am | 6 am | 7 am | 8 am | 9 am | 10 am | 11 am | 12 pm | 1 pm | 2 pm | 3 pm | 4 pm | 5 pm | 6 pm | 7 pm | 8 pm | 9 pm | 10 pm | 11 pm |
| 4.6 | 4.9 | 4.9 | 4.4 | 3.5 | 2.5 | 1.6 | 1 | 0.8 | 1.1 | 1.8 | 2.8 | 3.7 | 4.5 | 5 | 4.9 | 4.4 | 3.7 | 3 | 2.4 | 2.1 | 2.1 | 2.5 | 3.2 |
Weather Map and Satellite Images
(on/off) HelpWeather Map
GOES 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 (16,3,4,5)
(on/off) Help
Ground Weather Radar Station Sacramento, CA
(on/off) Help
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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. |