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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 6:22AM | Sunset 7:38PM | Sunday August 25, 2019 9:55 AM PDT (16:55 UTC) | Moonrise 1:02AM | Moonset 3:57PM | Illumination 24% |  |
7 Day Forecast for Marine Location Near Mammoth Lakes, CA
Hourly EDIT Helplocation: 37.67, -118.99 debug
Area Discussion for - San Joaquin Valley/Hanford, CA
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus66 khnx 250918 afdhnx area forecast discussion national weather service hanford ca 218 am pdt Sun aug 25 2019 Synopsis Ridge of high pressure remains over central california today, meaning another day of 100 + degree heat. This warming trend will continue early next week, with Tuesday being the hottest day of the week. Modest cooling trend starting Wednesday due to an upper level trough weakening the ridge over california. Additionally, there is a slight chance of afternoon convection over the sierra nevada Tuesday and Wednesday afternoon. Discussion Upper ridge will lead to continued hot weather across the central california interior as well as the mojave desert, with widespread high temperatures today at or slightly above 100 degrees. For Monday, ridging continues over the district, and afternoon highs will likely be a degree or two warmer. Tuesday will be the hottest day of the work week in the san joaquin valley, with max temperatures ranging from around 101 to 104 degrees. High temperatures in the mojave desert will also be quite hot, with highs in the 104-109 degree range. By Wednesday, an upper trough will impinge on the northwestern periphery of the california ridge, weakening it some. There is a chance some marine cooled air will make it into the san joaquin valley with the trough by |
Wednesday or Thursday. These factors will lead to a modest cooling trend through the end of the work week, leading to afternoon highs generally in the mid to upper 90s Thursday through next weekend. Regarding the chance of showers and thunderstorms, models are indicating that there is a slight chance convection over the sierra nevada by Tuesday afternoon. Wednesday afternoon also entails a slight chance of afternoon convection over the sierra crests. Elsewhere, expect dry weather to continue through the forecast period. Aviation Vfr conditions can be expected over the central california interior during the next 24 hours. Air quality issues On Sunday august 25 2019... Unhealthy for sensitive groups in fresno and kern counties and sequoia national park and forest. Further information is available at valleyair.Org Certainty The level of certainty for days 1 and 2 is high. The level of certainty for days 3 through 7 is high. Certainty levels include low... Medium... And high. Please visit |
Weather Reporting Stations
EDIT (on/off) Help NOTE: Click on distance to see the station location on a mapAirport 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 |
| Mammoth Yosemite Airport, CA | 9 mi | 75 min | SE 5 | 10.00 mi | Fair | 66°F | 50°F | 56% | 1028.4 hPa |
Link to 5 minute data for KMMH
Wind History from MMH (wind in knots)
| 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 | -12 PM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | |
| Last 24hr | SE | SE | SE | SE G14 | E G14 | E | E | SE | NW G17 | NW | NW | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | SE | ||||
| 1 day ago | Calm | SE | E | E | E | Calm | W G17 | NW G18 | NW | NW G14 | E | W | NW | NW | Calm | Calm | Calm | N | Calm | N | Calm | Calm | Calm | |
| 2 days ago | SE | SE | SE | Calm | E | NW G18 | W | NW | Calm | NE | W | Calm | W | W | W | W | W | W | N | NW | Calm | SE |
Tide / Current Tables for
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EDIT (on/off) HelpWeather 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 San Joaquin Valley/Hanford, CA (12,3,4,5)
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Ground Weather Radar Station San Joaquin Valley, 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. |