Sunday, December15, 2019
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Marine Weather and Tides
Lee Vining, CA

Version 3.4
NOTICE
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.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 7:02AMSunset 4:44PM Sunday December 15, 2019 5:16 AM PST (13:16 UTC) Moonrise 9:26PMMoonset 11:14AM Illumination 85% Phase: Waning Gibbous; Moon at 18 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 Lee Vining, CA
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location: 37.96, -119.13     debug


Area Discussion for - Reno, NV
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FXUS65 KREV 151109 AFDREV

Area Forecast Discussion National Weather Service Reno NV 309 AM PST Sun Dec 15 2019

SYNOPSIS.

High pressure builds overhead early this week for quieter weather. Developing inversions will bring limited ventilation for valleys Monday and Tuesday. A weak storm is expected Wednesday for a chance of light snow, mainly in eastern California. Below average temperatures will rebound to around average mid to late week. A stronger storm could impact holiday travel next weekend.

SHORT TERM.

An upper disturbance which brought an earlier burst of light to moderate snow is moving off into central and eastern Nevada. In its wake, many roads are slick or lightly snow-covered in eastern California, western Nevada (except on valley floors in the Reno- Sparks area), and along Interstate 80 north of Lovelock. As only minimal additional showers are expected at best, roads should clear up this morning; however, check with CALTRANS and/or NDOT for the latest travel restrictions if venturing out this morning.

The next few days will be on the tranquil side as high pressure builds into northeast California and western Nevada. Inversions will strengthen starting on Monday as subsidence warming aloft ensues under the building ridge. This will lead to limited mixing and ventilation of valley air Monday and Tuesday with some pollutants possibly building up to moderate levels. Temperatures will remain below average through Tuesday, with nighttime lows moderating substantially by Tuesday night as cloud cover increases ahead of a weak mid-week system. -Snyder

LONG TERM. Wednesday through next weekend .

A weak storm system will move into the Sierra on Wednesday, bringing a chance of snow to the Sierra along with gusty winds. This system will be falling apart as it moves inland so not expecting any major impacts from this storm other than some light accumulations over the passes Wednesday and Wednesday night.

Ridging increases over the Great Basin Thursday and Friday with the storm track shifting further north into the Pacific Northwest. By Saturday night and Sunday, a trough will finally swing into CA/NV bringing precip into our region. Latest trends continue to lessen the precipitation for our region as the trough looks to dive south and bring more of a southerly flow over the Sierra which would limit the orographic lift and spillover.

Winter storm conditions will be possible in the Sierra during this time, especially Sunday as the trough swings inland. Ensembles are still struggling with how much precip we will see on the east side of the Sierra and into western Nevada, but it does look like the main impacts of this storm will be mostly in the high Sierra with snow and less impacts for western Nevada. That being said, we are still a week out and things could change. Anyone with travel plans before the Christmas holiday should continue to monitor the weather for potential winter weather impacts. -Hoon

AVIATION.

Isolated light snow showers remain possible through the early morning hours, although little to no additional accumulations are expected. CIGS will improve through the morning with VFR conditions for all terminals for today. Could see some IFR freezing fog tonight at KTRK, mainly after 03z and into Monday morning. -Hoon

REV Watches/Warnings/Advisories. NV . None. CA . None.

For more information from the National Weather Service visit . http://weather.gov/reno


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Mammoth Yosemite Airport, CA28 mi21 minNW 11 G 1510.00 miFair21°F8°F57%1011.5 hPa

Link to 5 minute data for KMMH

Wind History from MMH (wind in knots)
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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 Reno, NV (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 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.