Marine Weather and Tides
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.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.
|Sunrise 6:48AM||Sunset 6:50PM||Monday September 25, 2017 5:21 PM PDT (00:21 UTC)||Moonrise 11:57AM||Moonset 10:25PM||Illumination 28%|
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7 Day Forecast for Marine Location Near Mammoth Lakes, CAHourly EDIT Help
Area Discussion for - San Joaquin Valley/Hanford, CA  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus66 khnx 252046|
area forecast discussion
national weather service san joaquin valley - hanford ca
146 pm pdt Mon sep 25 2017
The swing from below normal to above normal temperatures will
continue this week with dry conditions.
A final north to south jet streak will dive into the western edge
of the midlevel trough tonight through tomorrow night, closing off
an area of mid and upper level low pressure just west of the four
corners regions. In its wake, a weak rex block will form over the
western third of the conus, with heights gradually rising through
central california, resulting in our expected warm up. The
increase in upper level wind speed aloft may lead to gusty winds
at times through the grapevine tehachapi sierra nevada mountains
late tonight and tomorrow. Model forecasts may be underestimating
wind speeds somewhat in these regions. In addition, temperatures
along the grapevine region ran a little colder than guidance last
night, although better mixing late tonight may mitigate last
night's warm bias.
For a time, this pattern with veer surface flow to the east,|
which will contribute to the warm up across the valley. Heights
will continue to gradually increase as the aforementioned low
moves north, weakens and opens up. Despite these changes to the
synoptic period, a long stretch of dry weather continues in the
Near the end of the forecast period into early next week,
models ensembles diverge on whether increasing troughing over the
pacific northwest takes more of an inside slider track, or instead
sags more in a southerly trajectory along the california coast.
Vfr conditions will prevail throughout the central california
interior during the next 24 hours.
Air quality issues
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 StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Mammoth Yosemite Airport, CA||9 mi||26 min||WNW 9||10.00 mi||Fair||62°F||19°F||19%||1019.3 hPa|
Wind History from MMH (wind in knots)
|1 day ago||NW|
|2 days ago||N||N||N||W||W||W||W||W||W||W||W||NW||W||W||W||W||NW||NW||W||Calm||W||N||NW||N |
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|Weather Map ||IR Satellite Image from GEOS|
GOES Local Image of CentralWestCoast EDIT
Wind Forecast for San Joaquin Valley/Hanford, CA (20,4,5,8)(on/off)  Help
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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 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.