Wednesday, June20, 2018 L-36.com


Marine Weather and Tides
South Lake Tahoe, CA

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.

Sunrise 5:33AMSunset 8:30PM Wednesday June 20, 2018 6:32 AM PDT (13:32 UTC) Moonrise 12:20PMMoonset 12:18AM Illumination 46% Phase: First Quarter Moon; Moon at 7 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 201002
afdrev
area forecast discussion
national weather service reno nv
302 am pdt Wed jun 20 2018

Synopsis
Above average temperatures with dry conditions will prevail through
next weekend. Breezy afternoon and evening conditions are expected
through Thursday, with lighter winds Friday and Saturday. Thunderstorm
risks remain very low through at least next weekend.

Short term
A weak upper low currently approaching the northern california coast
will move into the western half of oregon this evening. The main impact
from the low for northeast california and western nevada will be an
increase in southwest to west breezes this afternoon and evening as
increased onshore flow into california enhances the thermal gradient
across the region. Winds gusting 25-35 mph for eastern california and
western nevada, generally west of highway 95, will make for increased
chop on area lakes and bring an increased threat for mainly grass
fires. For more information on winds and humidities tailored to fire
concerns, see the fire weather section (below) of this discussion.

Thursday, late afternoon and evening wind gusts are expected to ease
down to 20-30 mph at best as winds aloft ease down behind Wednesday's
upper disturbance. With little cooling aloft, high temperatures are
expected to remain above normal (but nothing unusual) and within
1-3 degrees of Wednesday's highs. Friday, winds lighten further
with temperatures remaining similar to Thursday. -snyder

Long term Saturday into next week...

the warm, dry pattern will continue into at least the middle of next
week. A low will drop into the eastern great basin Saturday that
will bring winds more out of the north Saturday into Sunday and act
to cool temps slightly. Then the ridge rebuilds over arizona with a
light SW flow aloft, typical for summer. Temps will rebound to the
mid to upper 90s for western nv valleys early next week, with 80s
in the sierra valleys. An afternoon zephyr breeze can be expected
each day.

One thing to watch, especially if the high were to build slightly
further northwest, is isolated thunderstorms over mono-mineral
counties. There is nothing to indicate it right now as the SW flow
is expected to be strong enough to disrupt this convergence pattern
from developing. X

Aviation
Vfr conditions through Friday. Increased SW winds this afternoon at
most terminals north of us 50 with peak gusts to 25 kts 20-03z.

Winds will increase again Thursday afternoon, but be more from the
west with peak gusts around 20 kts. Some light mtn wave turbulence
will occur through Thursday evening. X

Fire weather
Low pressure will move into the pacific northwest tonight with sw
winds increasing this afternoon and evening. Most gusts are expected
to be 30 mph or less and along the 395 corridor north of bridgeport.

The highway 95 corridor will see gusts around 25 mph after 4-5 pm
for a couple hours. Localized red flag conditions will occur in the
wind prone areas, but otherwise it is expected to be a marginal event.

Tonight, a big dry slot moves in and humidity recovery will be poor
on mid slopes and ridges. The tahoe basin will see rh crater back to
the single digits and teens after an evening "recovery". This will
occur above 6500-7000 feet or so. Low rh will occur Thursday, but
winds are not expected to be as strong with gusts around 25 mph
followed by poor recoveries continuing into Thursday night.

The airmass modifies slightly this weekend as north flow develops
with some locally gusty overnight winds Saturday Sunday nights in
453 458. A return of the zephyr is expected early next week with
more very dry air and poor recovery. At this time, thunderstorm
chances look minimal through the middle of next week. X

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
South Lake Tahoe, Lake Tahoe Airport, CA1 mi40 minS 310.00 miFair40°F37°F93%1018.9 hPa
Carson City Airport, NV24 mi38 minN 010.00 miFair50°F39°F67%1021.7 hPa

Wind History from TVL (wind in knots)
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Last 24hrS3CalmCalm4N7NE9NE6N7NE10
G14
3NE6NE9N6CalmCalmCalmCalmS4SW3S3CalmCalmS3S3
1 day agoS3Calm34CalmCalmNE6CalmNE953NE7CalmCalmCalmCalmCalmCalm4S3CalmS3SW3S3
2 days agoS4S7
G18
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S10S7S6N3CalmCalmS4S4CalmS3S4S3S3

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

Wed -- 01:24 AM PDT     Moonset
Wed -- 01:56 AM PDT     2.72 feet High Tide
Wed -- 03:52 AM PDT     First Quarter
Wed -- 05:41 AM PDT     Sunrise
Wed -- 09:18 AM PDT     0.49 feet Low Tide
Wed -- 01:21 PM PDT     2.29 feet High Tide
Wed -- 01:26 PM PDT     Moonrise
Wed -- 08:33 PM PDT     Sunset
Wed -- 09:30 PM PDT     -0.03 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.92.52.72.62.31.81.410.70.50.61.31.92.32.32.11.71.30.80.40.2-000.5

Tide / Current Tables for Sacramento #4, Sacramento River, California
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Sacramento #4
Click for Map
Wed -- 01:24 AM PDT     Moonset
Wed -- 01:56 AM PDT     2.71 feet High Tide
Wed -- 03:52 AM PDT     First Quarter
Wed -- 05:41 AM PDT     Sunrise
Wed -- 09:18 AM PDT     0.49 feet Low Tide
Wed -- 01:21 PM PDT     2.28 feet High Tide
Wed -- 01:26 PM PDT     Moonrise
Wed -- 08:33 PM PDT     Sunset
Wed -- 09:29 PM PDT     -0.04 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.92.52.72.62.21.81.410.70.50.61.31.92.22.22.11.71.30.80.40.2-000.5

Weather Map and Satellite Images
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wmap_P
GOES 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.
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Wind Forecast for Reno, NV (9,2,3,4)
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Ground Weather Radar Station Reno, NV
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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.