Monday, June26, 2017 L-36.com


Marine Weather and Tides
South Lake Tahoe, 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 5:35AMSunset 8:31PM Monday June 26, 2017 8:40 PM PDT (03:40 UTC) Moonrise 7:37AMMoonset 9:51PM Illumination 10% Phase: Waxing Crescent; Moon at 3 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 South Lake Tahoe, CA
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location: 38.91, -120.01     debug


Area Discussion for - Reno, NV
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Fxus65 krev 262044
afdrev
area forecast discussion
national weather service reno nv
144 pm pdt Mon jun 26 2017

Synopsis
Gusty winds and low humidities will produce critical fire weather
conditions and choppy lakes for portions of northeast california
and western nevada into this evening. Temperatures will cool down
to near seasonal averages Tuesday and Wednesday, then slowly warm
up for the latter part of the week.

Discussion
An upper level disturbance is moving over southern and eastern
oregon this afternoon. Far northern nevada, including northern
washoe county, is on edge of the upper forcing divergence aloft as
evidenced by some high-based clouds there. However, more stable
air is moving into that region with what appears to be acsl east
of cedarville. Therefore, no precipitation or deep convection is
expected this evening and all mention of showers or thunderstorms
has been removed from the surprise valley and northern washoe
county.

Tuesday and Wednesday, northeast california and western nevada
will be under zonal or northwest flow aloft as a weak trough
moves through the interior pacific northwest and northern rockies.

This is expected to keep temperatures moderated somewhat with
seasonally warm highs (after around 10 days well above average).

There will still be some afternoon breeziness but it will be much
reduced as the thermal gradient across the region relaxes.

Rather tranquil conditions will rule Thursday through early next
week as ridging or periodic very weak troughing resides overhead.

Cumulus buildups will be possible over the sierra Friday and or
Saturday as slight cooling aloft combines with above average
(yep, again!) temperatures. Pop in the sierra remains very low as
not all simulations show the cooling aloft (gfs much more stable
by Saturday). -snyder

Aviation
Surface wind gusts 25-35 kts and ridge gusts up to 40-50 kts will
raise the potential for some turbulence through the evening. All
showers and or thunderstorms are expected to remain near or north
of the oregon border today. Winds aloft and surface gradients
will relax tue-wed for considerably lighter winds. -snyder

Fire weather
As the ridge of high pressure breaks down, red flag warnings are
in effect through this evening in extreme NE california and through
central and western nevada for low humidity and gusty winds. Wind
gusts up to 35-40 mph with humidity dropping into the teens and
single digits will persist until around sunset. With some lightning
activity in the region over the last few days, hold-over fires and
any human related ignitions will be a concern today.

Surface temperature and pressure gradients will weaken tomorrow
with wind gusts returning to the 20 to 30 mph range, but localized
critical fire weather conditions will be possible for a few hours
Tuesday afternoon in parts of western nevada as the afternoon zephyr
kicks in. Conditions are not expected to be widespread or of
significant duration, so no fire weather products will be issued.

However, in dry grasses this can still be enough to create a period
of rapid fire growth.

The rest of the week will see a slight cool down to the upper 80s
before returning to the mid 90s by the weekend. Daily afternoon
wind gusts up to 20-25 mph can be expected most afternoons along
with very dry conditions. After today, no critical fire weather
conditions are expected for the rest of the week. -zach

Rev watches warnings advisories
Nv... Red flag warning until 11 pm pdt this evening nvz450-453-458-459.

Lake wind advisory until 11 pm pdt this evening for washoe lake
in nvz003.

Lake wind advisory until 11 pm pdt this evening nvz004.

Ca... Red flag warning until 11 pm pdt this evening caz278.

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
South Lake Tahoe, Lake Tahoe Airport, CA1 mi47 minSSW 7 G 1710.00 miFair67°F28°F24%1016.7 hPa
Carson City Airport, NV24 mi45 minW 12 G 1710.00 miFair75°F32°F21%1019.3 hPa

Wind History from TVL (wind in knots)
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Last 24hrCalmS4S4S3CalmCalmCalmS3CalmSW3S3Calm3S5
G16
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S13
G25
SW12
G23
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1 day agoCalmS4CalmCalmS4CalmCalmS3CalmCalmS3S3CalmNE3NE9NE6NE8NE9--5
G16
--56S6
2 days agoCalmCalmS4S4S5S4CalmS3CalmCalmS3S4Calm4NE5NE5NE7N7N8N8----SW8
G15
S9

Tide / Current Tables for Sacramento, Sacramento River, California
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Sacramento
Click for MapNote: These data apply only during low river stages.

Mon -- 04:35 AM PDT     0.75 feet Low Tide
Mon -- 05:43 AM PDT     Sunrise
Mon -- 08:39 AM PDT     3.38 feet High Tide
Mon -- 08:44 AM PDT     Moonrise
Mon -- 05:50 PM PDT     -0.33 feet Low Tide
Mon -- 08:34 PM PDT     Sunset
Mon -- 10:53 PM PDT     2.69 feet High Tide
Mon -- 10:56 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.21.81.310.80.81.42.53.23.43.22.82.21.610.50-0.2-0.30.10.91.82.52.7

Tide / Current Tables for Sacramento #4, Sacramento River, California
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Sacramento #4
Click for Map
Mon -- 04:35 AM PDT     0.74 feet Low Tide
Mon -- 05:43 AM PDT     Sunrise
Mon -- 08:39 AM PDT     3.37 feet High Tide
Mon -- 08:44 AM PDT     Moonrise
Mon -- 05:50 PM PDT     -0.34 feet Low Tide
Mon -- 08:34 PM PDT     Sunset
Mon -- 10:53 PM PDT     2.68 feet High Tide
Mon -- 10:56 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.21.71.310.80.81.42.43.23.43.22.82.21.610.50-0.2-0.30.10.91.82.52.7

Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of CentralWestCoast    EDIT
Geos

Wind Forecast for Reno, NV (23,6,7,8)
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Ground Weather Radar Station Reno, NV
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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.