Marine Weather and Tides
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.
|Sunrise 7:02AM||Sunset 4:45PM||Sunday December 16, 2018 7:34 PM PST (03:34 UTC)||Moonrise 2:02PM||Moonset 1:29AM||Illumination 71%|
7 Day Forecast for Marine Location Near Wilsonia, CAHourly EDIT Help
Area Discussion for - San Joaquin Valley/Hanford, CA  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus66 khnx 170115 aaa|
area forecast discussion
national weather service san joaquin valley - hanford ca
515 pm pst Sun dec 16 2018
Updated air quality section...
Synopsis A weather system will move into and across the
central california interior tonight and Monday bringing rain
and mountain snow to most areas. High pressure will then
build over the west coast through much of the upcoming week
for dry and warmer weather.
Discussion Satellite imagery shows a classic cloud signature
over the area with thicker clouds over the northwest part of the
forecast area and nearly cloud skies over most of kern county.
Regional radars show light precipitation moving into the bay area
east to stockton and modesto but thus far nothing any farther
south. As for movement of the incoming low pressure system, water
vapor imagery shows the main frontal band aligned nearly north to
south along the coast with clouds and precipitation moving
southwest to northeast along this boundary.
With the north to south orientation of the front, movement to the
east will be slow initially and the latest high resolution rapid
refresh model generates some rain in western merced county after 6
pm with the bulk of precipitation arriving after 8 pm and ending
around sunrise. Same model drives the front southeast through the
overnight hours with lingering showers noted through Monday
morning. Instability will increase over merced, madera and fresno
counties later tonight in the wake of the front as colder air
aloft arrives and given convective parameters including negative
lifted indices and in coordination with storm prediction centers
general thunderstorm risk for the area, a few thunderstorms seem
and good bet over this area. Not much threat of thunder to the
south and east as the instability will lift northeast pretty
As for winter weather, snow accumulations of 9-12 inches are
generated by the latest QPF forecasts and this matches up really
well with the winter weather advisory. Snow levels look to fall to|
around 6000-6500 feet for the bulk of the precipitation evening
with some areas seeing some minor accumulation down to around 5500
feet in yosemite park in the colder, more unstable air.
All precipitation is expected to come to an end Monday night.
Models then are in good agreement in building a high pressure
ridge over the region Tuesday through Thursday for warming and
drying weather. Based on how much additional rain falls in the fog
prone san joaquin valley, low visibilities may become an issue as
early as Tuesday morning Wednesday and Thursday the days most
likely to have persistent dense fog. The ridge does weaken as a
decaying trough of low pressure moves across far northern
california on Friday. This looks to be followed by a dry northwest
flow pattern in the big travel pre christmas weekend next week.
Taking a quick look at any white christmas possibilities, as of
today the long range has some promise in the mountains of northern
california however for us down this far south... It looks dry for
MVFR in showers mist for the san joaquin valley along with mountain
obscuring ifr conditions across the sierra nevada and kern county
mountains becoming a possibility after 03z Monday. Over the
desert...VFR conditions will prevail over the next 24 hours.
Air quality issues
On Monday december 17 2018... Fireplace wood stove burning status
is: no burning unless registered in fresno... Kern... Kings...
and merced counties.
Further information is available at valleyair.Org
The level of certainty for days 1 and 2 is high.
The level of certainty for days 3 through 7 is medium.
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
|Visalia, Visalia Municipal Airport, CA||33 mi||38 min||E 5||7.00 mi||Fair||58°F||46°F||67%||1020.2 hPa|
Wind History from VIS (wind in knots)
|1 day ago||SE||E||Calm||Calm||NE||NE||E||E||E||E||SE||SE||Calm||Calm||Calm||Calm||NW||W||N||Calm||S||Calm||Calm|
|2 days ago||Calm||Calm||NE||Calm||Calm||Calm||Calm||E||Calm||Calm||SW||Calm||Calm||Calm||E||E||Calm||Calm||NW||NW||Calm||E||SE||E |
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help
EDIT (on/off)  Help
Weather Map and Satellite Images(on/off)  HelpWeather Map
GOES Local Image of Southwest 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 (22,6,7,8)(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.