Sunday, January21, 2018 L-36.com


Marine Weather and Tides
Mammoth Lakes, CA

Version 3.4
What's New / NOTES
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 7:05AMSunset 5:14PM Sunday January 21, 2018 10:06 AM PST (18:06 UTC) Moonrise 10:51AMMoonset 10:42PM Illumination 25% Phase: Waxing Crescent; Moon at 5 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 211256
afdhnx
area forecast discussion
national weather service san joaquin valley - hanford ca
456 am pst Sun jan 21 2018

Synopsis
Weak high pressure over the region will maintain dry and
seasonably cool conditions today. A weak weather system will then
bring a chance of light precipitation to areas from fresno county
north tonight and Monday. A stronger storm system will bring rain
and mountain snow to much of the area Wednesday night through
Thursday night.

Discussion
Cooler air in place behind the recent passing frontal system is
providing a frosty morning across our area, with temperatures
running in the low to mid 30s across the san joaquin valley.

Some low clouds are banked along the valley facing slopes in
tulare and kern counties, otherwise mostly clear skies prevail. Mid
level moisture streaming into the weak ridge building overhead
will create some additional cloudiness over the area while
temperatures rise to around climo this afternoon.

The next weak frontal system to impact central california will
brush by late Sunday night into Monday, as models continue to
trend the main shortwave energy well to our north. Precipitation
chances should remain generally from fresno county north, with
only light QPF and minimal snow accumulation over the sierra.

Tuesday will see weak ridging again as a more significant
developing trough approaches the region. Under the weak ridge we
will see slight warming with a chance for some fog in the san
joaquin valley. This next pacific frontal system is handled
similarly by models and will spread precipitation chances
southward across our area by Wednesday evening and overnight.

Though this storm system will have more of an impact on our area
than the weak system brushing by Monday, there are still
uncertainties, as QPF progs are trending lower. Current storm
total rainfall accumulations for the sj valley are expected to
range from as much as 1 2 inch up near the merced area to around a
couple of tenths down south. Amounts increase to 3 4 of an inch to
around an inch up into the foothills and sierra zones below the
snow level which will be as low as 3500 ft. Several inches of snow
will accumulate in the sierra, with locally up to a foot at the
highest elevations. More modest rain and snow amounts are likely
in the kern county mountains, though low snow levels and upslope
shower activity could lead to travel concerns over the passes
by Thursday morning. Most desert locations are expected to see
less than a few hundredths of an inch of rainfall. Gusty winds
will also accompany the passing frontal system.

Models remain in general agreement for the end of the week and the
weekend as a ridge is progged to build along the west coast. This
will bring dry and generally warming temperatures, except
conditions will be favorable for another round of san joaquin
valley tule fog. Persistent fog and low clouds would keep valley
temperatures from warming much during the day.

Aviation
In the san joaquin valley, areas of MVFR and local ifr conditions in
mist and low clouds through 18z Sunday. Otherwise,VFR conditions
will prevail across the central ca interior for the next 24 hours.

Air quality issues
None.

Certainty
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 Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Mammoth Yosemite Airport, CA9 mi32 minW 510.00 miFair32°F0°F26%1024 hPa

Wind History from MMH (wind in knots)
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Last 24hrW9NW10W9NW7
G16
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NW8W7W6W9NW3W7W8NW4W11W6NW3W11CalmN3N3CalmW6SE3
1 day agoNW8W13W15
G21
SW7W13W15W12SW17N9
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NW6W12NW6W9NW7W9W8W10W10W7W5W7W10NW6W9
2 days agoN5S7
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CalmS12
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G24
SW18
G36
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G36
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G33
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SW6W9
G14
W15W8
G14
N5

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map and Satellite Images
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Weather Map
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IR Satellite Image from GEOS
west_satellite

GOES Local Image of CentralWestCoast    EDIT
Geos

Wind Forecast for San Joaquin Valley/Hanford, CA (13,3,4,5)
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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.