Marine Weather and Tides
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
|Sunrise 5:40AM||Sunset 8:10PM||Wednesday May 27, 2020 6:27 AM PDT (13:27 UTC)||Moonrise 9:58AM||Moonset 12:03AM||Illumination 28%|
7 Day Forecast for Marine Location Near June Lake, CAHourly EDIT Help
Area Discussion for - San Joaquin Valley/Hanford, CA  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS66 KHNX 270817 AFDHNX
Area Forecast Discussion National Weather Service Hanford CA 117 AM PDT Wed May 27 2020
SYNOPSIS. Heat wave intensifies today as afternoon high temperatures soar 17-20 degrees above average across Central California. Excessive heat continues tomorrow as upper level ridging persists. Cooling trend to begin Friday as an upper low nears the region, also leading to breezy conditions in the wind-prone areas of the forecast area. Cooler and a slight chance of showers early next week as a trough impacts the district.
DISCUSSION. Hot weather to persist today as the ridge axis shifts east, leading to additional height rises/thickness increases over the forecast area. Afternoon highs yesterday were in the 100-104 degree range, and expect a few degrees warmer today. This will put most of the San Joaquin Valley in the 103-107 degree range today, or 17-20 degrees above normal for late May. Ridge axis hedges slightly eastward tomorrow, but builds a few decameters, so expect afternoon highs to remain hot again for tomorrow, with many areas expected to hit 105-107 degrees in the SJ Valley. Near Indian Wells Valley, expect highs today to reach 104-107 degrees, and up to 106-109 degrees tomorrow. Starting at 11 AM today, the Excessive Heat Warning will include the entire desert portion of Kern County, and will remain valid until 7 PM Thursday; see the Excessive Heat Warning for more details. With the excessive heat impacting the region, we want to remind everybody that while area rivers may look like an inviting place to cool off, they present a major hazard to those who enter. Rapid onset of hypothermia may occur to those who venture into very cold rivers seeking heat relief. River currents are also running swift as additional snowmelt occurs this week. This combination of hazards can make local rivers dangerous to enter and can result in swift water rescues or even a cold water drowning.
Change in the pattern as an upper level disturbance nears the forecast area Friday. Upper height falls to occur as the ridge shifts eastward, heralding the start of a cooldown; afternoon highs will still be warm, near 100 degrees across the valley. Gusty winds can be expected along the west side hills and valley Friday evening as onshore flow increases, with strong winds also possible in the Mojave Desert by Friday night. A wind advisory may be required for these area once more hi-res model guidance is available. Additional cooling to continue Saturday as the upper low passes through the region, leading to near seasonal highs. Mostly a cooler and cloudier pattern to continue through the weekend as medium range guidance suggests a trough pattern aloft over the CWA, with a slight chance of light showers across most of the forecast area Monday and Tuesday afternoon.
AVIATION. VFR conditions will prevail across the interior of Central California through at least the next 24 hours.
AIR QUALITY ISSUES. On Wednesday May 27 2020 . Unhealthy for sensitive groups in Fresno . Kern . Kings . Madera and Tulare 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 www.weather.gov/hnx/certainty.html for additional information an/or to provide feedback.
HNX WATCHES/WARNINGS/ADVISORIES. Excessive Heat Warning until 7 PM PDT Thursday for CAZ179>191.
Excessive Heat Warning from 11 AM this morning to 7 PM PDT Thursday for CAZ198-199.
public . Bollenbacher aviation . Bollenbacher IDSS/PIO . JEB
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. Follow links for more data.
|Mammoth Yosemite Airport, CA||18 mi||51 min||N 0||10.00 mi||Fair||45°F||33°F||66%||1025.7 hPa|
Link to 5 minute data for KMMH
Wind History from MMH (wind in knots)
|1 day ago||Calm||SE||Calm||SE||E||Calm||SW||NE||E||S||Calm||W|
|2 days ago||Calm||Calm||Calm||N||SE||SE||SE||NW||N|
EDIT Weekend mode (on/off) (on/off)  Help
EDIT (on/off)  Help
Weather Map(on/off)  Help Weather Map
GEOS 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 (9,2,3,4)(on/off)  Help
Ad by Google
I do not sell or share any user data or anything else for that matter. The only personal information I save is in the site log which has a line for each page view which includes the IP address your browser sends in the header as well as which page you requested. I use this to block hackers and other bad actors. I do not use this raw data to create profiles on users. I periodically delete the log files. If you are subject to CCPA, Google ads on this site will not be based on your past behavior so you will likely not see an ad for a lawn mower just because you looked for one at a big box website. I do not believe this site is subject to CCPA but I am doing what I can to follow the guidelines anyway.
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 numerous 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.