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Marine Weather and Tides
Version 3.4 |
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues. 6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported. 5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive. |
| Sunrise 6:17AM | Sunset 7:58PM | Sunday April 22, 2018 11:15 AM PDT (18:15 UTC) | Moonrise 11:14AM | Moonset 1:09AM | Illumination 49% |  |
Marine Forecasts
EDIT (on/off) Help| PZZ540 Point Arena To Point Reyes To 10 Nm- 812 Am Pdt Sun Apr 22 2018 .small craft advisory in effect through this evening... Today..NW winds 15 to 25 kt. Wind waves 4 to 6 ft. NW swell 6 ft at 14 seconds. Patchy fog in the morning. Tonight..NW winds 15 to 25 kt decreasing to 10 to 20 kt overnight. Wind waves 3 to 5 ft. NW swell 5 to 6 ft at 13 seconds. Mon..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 6 ft at 13 seconds. Mon night..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 4 to 5 ft at 18 seconds. Tue..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. W swell 5 to 7 ft at 17 seconds. Wed..W winds 10 kt. Wind waves 2 ft or less. W swell 5 to 7 ft. Thu..W winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 3 to 5 ft and S 3 ft. | PZZ500 812 Am Pdt Sun Apr 22 2018 Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Moderate to locally gusty northwest winds will continue today across the waters as high pressure sits over the eastern pacific. Brisk winds will likely continue to generate steep wind waves and fresh swell resulting in choppy seas through the rest of today. Winds will gradually diminish tonight into tomorrow. |
7 Day Forecast for Marine Location Near Geyserville, CA
Hourly EDIT Helplocation: 38.71, -123 debug
Area Discussion for - Sacramento, CA
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus66 ksto 220902 afdsto area forecast discussion national weather service sacramento ca 202 am pdt Sun apr 22 2018 Synopsis Dry and warm through early next week. Chance of a few showers or thunderstorms over the mountains by mid to late next week. Discussion Shortwave trough will pass through the area today, but bring little to no moisture with it. This will serve to cool temperatures a few degrees across northern portions of the area, while southern portions will warm a few degrees from Saturday's readings. Widespread 80s expected across the valley with 50s-60s in the mountains. Instability that brought a few storms near the crest in tuolumne county yesterday will shift southward, so not expecting any convection today. Could see some locally breezy north winds across northern sac valley. Ridging rebuilds for Monday and Tuesday as temperatures warm a few more degrees, topping out much above normal for late april. Redding will likely tie or break daily MAX records both days (airport records for the 24th - 86 in 2002 and 25th - 87 in 2013). Other valley records are in the 90s so not expecting to break additional records. As ridging begins to the shift to the east Tuesday into Wednesday in advance of large closed upper low |
over the pacific, could see a few afternoon evening showers and thunderstorms develop near the sierra crest, south of i-80, as instability is pulled northward. Confidence remains low in just how widespread this activity may be, but something to watch. Temperatures will remain much above normal. Ceo .Extended discussion (Thursday through Sunday) high pressure remains over the west thru Thursday as a closed upper low sits over the eastern pacific. Temperatures will remain above average and there's a slight chance of diurnal thunderstorms over the sierra crest. Friday into the weekend, uncertainty is high as models diverge significantly on the speed and direction of the closed low movement. Generally, the upper low and associated surface cold front approaches the area on Friday, creating a chance for more widespread showers and afternoon thunderstorms over the coast range and sierra crest. Temperatures expected to cool down close to average. Aviation Vfr conditions at the TAF sites the next 24 hours. Winds 10 kts or less except vicinity delta southwest 10-15 kts. 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 |
| 46013 - Bodega Bay - 48NM North Northwest of San Francisco, CA | 36 mi | 36 min | NNW 12 G 16 | 51°F | 49°F | 1016.9 hPa | 49°F | |
| ANVC1 - 9416841 - Arena Cove, CA | 40 mi | 46 min | NW 6 G 12 | 54°F | 49°F | 1018.1 hPa | ||
| PRYC1 - 9415020 - Point Reyes, CA | 49 mi | 46 min | NW 1 G 1 | 51°F | 1016 hPa |
Wind History for Arena Cove, CA
(wind in knots) EDIT (on/off) Help| 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 | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | |
| Last 24hr | W G15 | NW G14 | NW G15 | NW G15 | NW G16 | W G11 | NW G13 | NW G15 | NW G9 | W G6 | NW G6 | W | NW G6 | W G7 | W G6 | W | NW | NW G9 | NW G7 | NW G8 | S G8 | NW G6 | NW G9 | NW G11 |
| 1 day ago | NW G12 | NW G15 | NW G18 | NW G18 | NW G10 | NW G12 | W G15 | NW G14 | W G15 | W G8 | NW G7 | SE | NW | NW G6 | W G6 | SE G4 | NW G8 | NW G7 | W G9 | NW G7 | NW G8 | W G8 | NW G9 | NW G11 |
| 2 days ago | NW G11 | NW G19 | NW G16 | W G15 | W G19 | NW G17 | NW G14 | W G9 | W G10 | NW G7 | NW G7 | NW G7 | NW | E G6 | E | NE G6 | E G5 | NE | NE | E | E | E G7 | NW G7 | NW G11 |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Weaverville, CA | 19 mi | 21 min | SW 3 | 10.00 mi | Fair | 57°F | 37°F | 48% | 1019.3 hPa |
Wind History from STS (wind in knots)
| 12 PM | 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 | |
| Last 24hr | Calm | S | SE | S | S | S | SE | S | S | SE | S | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | S | Calm | Calm | Calm | W |
| 1 day ago | S | S | S | S | SE | SE | SE | SE | S | S | S | Calm | SE | S | Calm | Calm | NW | Calm | SW | Calm | Calm | Calm | Calm | |
| 2 days ago | NW | N | NW | Calm | NW | Calm | NW | Calm | NW | NW | NE | N | Calm | Calm | W | W | W | W | Calm | Calm | NW | N | SW |
Tide / Current Tables for Fort Ross, California
EDIT RT Ports Option Weekend mode (on/off) (on/off) Help One Week of Data| Fort Ross Click for Map Sun -- 02:04 AM PDT Moonset Sun -- 04:00 AM PDT 5.13 feet High Tide Sun -- 06:27 AM PDT Sunrise Sun -- 11:18 AM PDT -0.42 feet Low Tide Sun -- 12:20 PM PDT Moonrise Sun -- 02:46 PM PDT First Quarter Sun -- 06:35 PM PDT 4.47 feet High Tide Sun -- 07:56 PM PDT Sunset Sun -- 11:53 PM PDT 2.55 feet Low Tide Tide / Current data from XTide NOT FOR NAVIGATION |
| 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm |
| 3.1 | 3.7 | 4.3 | 4.9 | 5.1 | 4.9 | 4.2 | 3.2 | 2 | 0.8 | -0 | -0.4 | -0.3 | 0.2 | 1.1 | 2.1 | 3 | 3.9 | 4.4 | 4.4 | 4.1 | 3.6 | 3.1 | 2.7 |
Tide / Current Tables for Salt Point, California Current
EDIT (on/off) Help One Week of Data| Salt Point Click for Map Sun -- 12:01 AM PDT 0.00 knots Slack Sun -- 02:05 AM PDT Moonset Sun -- 02:41 AM PDT 0.54 knots Max Flood Sun -- 05:22 AM PDT -0.00 knots Slack Sun -- 06:27 AM PDT Sunrise Sun -- 08:49 AM PDT -1.21 knots Max Ebb Sun -- 12:20 PM PDT Moonrise Sun -- 12:56 PM PDT 0.00 knots Slack Sun -- 02:46 PM PDT First Quarter Sun -- 04:08 PM PDT 0.96 knots Max Flood Sun -- 07:35 PM PDT -0.00 knots Slack Sun -- 07:56 PM PDT Sunset Sun -- 09:47 PM PDT -0.58 knots Max Ebb Tide / Current data from XTide NOT FOR NAVIGATION |
| 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm |
| -0 | 0.3 | 0.5 | 0.5 | 0.4 | 0.1 | -0.3 | -0.7 | -1.1 | -1.2 | -1 | -0.8 | -0.4 | 0 | 0.5 | 0.8 | 1 | 0.9 | 0.7 | 0.3 | -0.2 | -0.5 | -0.6 | -0.5 |
Weather Map and Satellite Images
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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 (14,3,4,5)
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Ground Weather Radar Station Sacramento, 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. |