Saturday, July4, 2020
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Marine Weather and Tides
Mammoth Lakes, CA

Version 3.4 		NOTICE
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 5:43AMSunset 8:22PM Saturday July 4, 2020 5:50 AM PDT (12:50 UTC) Moonrise 8:19PMMoonset 5:02AM Illumination 99% Phase: Waxing Gibbous; Moon at 14 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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7 Day Forecast for Marine Location Near Mammoth Lakes, CA
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location: 37.67, -118.99     debug

Area Discussion for - San Joaquin Valley/Hanford, CA
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FXUS66 KHNX 041042 AFDHNX

Area Forecast Discussion National Weather Service Hanford CA 342 AM PDT Sat Jul 4 2020

SYNOPSIS. Temperatures will increase and approach the century mark for the holiday weekend. Average temperatures are expected for the majority of next week. Dry conditions will continue the next 7 days.

DISCUSSION. High pressure near the TX/NM border and a deep trough over the PacNW has kept the region under a dry, southwesterly onshore flow. Temperatures remained near average across the district on Friday. The exception to this was over western Merced County, which continued to see cooler temperatures due to a push of a deep marine layer (~2,000ft) through Pacheco Pass.

Temperatures will be on the rise for the holiday weekend as high pressure continues to retrograde west toward northern Baja. This will increase 500mb heights to roughly 5910 meters over our region. Locations across the valley, lower elevations of the Sierra foothills, and the Kern County desert will approach the century mark. These temperatures are between 3 to 6 degrees above average. Increasing pressure gradients will lead to gusty winds each afternoon through and below the mountain passes and surrounding desert areas in Kern County.

From Monday through Thursday, the deterministic model solutions as well as the North American Ensemble Forecast System (NAEFS) show a deep longwave trough settling south over California. Increasing onshore flow will lower temperatures back to average conditions. By late next week into the weekend, models and ensembles are in decent agreement building a strong ridge of high pressure over the Great Basin. Temperatures are expected to increase back above average by the end of next week. Dry conditions are expected at least through the 7 days.

AVIATION. Wind gusts up to 35 kts are possible through and below the mountain passes and surround desert areas in Kern County from 00Z Sunday through at least 12Z Sun. Otherwise, VFR conditions will prevail over the central CA interior for at least the next 24 hours.


AIR QUALITY ISSUES. On Saturday July 4 2020 . Unhealthy for sensitive groups in Fresno . Madera and Tulare 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 www.weather.gov/hnx/certainty.html for additional information an/or to provide feedback.

HNX WATCHES/WARNINGS/ADVISORIES. None.

public . CMC aviation . Dudley

weather.gov/hanford

Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Mammoth Yosemite Airport, CA9 mi75 minN 010.00 miFair37°F21°F52%1026.4 hPa

Link to 5 minute data for KMMH

Wind History from MMH (wind in knots)
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Last 24hrNE3CalmCalmSE5SE7S4S4S5W17
G25		W20
G24		W19
G28		W19
G25		W10
G18		NW3W10CalmCalmCalmCalmCalmCalmCalmCalmCalm
1 day agoCalmCalmCalmCalmSE4SE6SE8
G15		E13
G17		SE12
G19		W13
G21		W16
G31		W22
G29		W14
G26		SW10
G15		S7NW10
G15		N3CalmE3CalmCalmN3CalmN3
2 days agoCalmCalmCalmE5SE5SE5E7
G14		E10
G15		NW7S5
G32		SW15
G21		SW12
G20		W9
G19		W11
G24		CalmNE3CalmCalmCalmCalmCalmCalmN3N4
Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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wmap_P
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 (8,2,3,4)
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Ground Weather Radar Station San Joaquin Valley, CA
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weather_mapweather_map weather_map

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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 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.