Monday, November20, 2017 L-36.com


Marine Weather and Tides
Kirkwood, 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 6:48AMSunset 4:43PM Monday November 20, 2017 9:23 AM PST (17:23 UTC) Moonrise 8:35AMMoonset 6:42PM Illumination 4% Phase: Waxing Crescent; Moon at 2 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 Kirkwood, CA
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location: 38.82, -120.06     debug


Area Discussion for - Reno, NV
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Fxus65 krev 201147
afdrev
area forecast discussion
national weather service reno nv
347 am pst Mon nov 20 2017

Synopsis
A warm and weak system will bring light rain and very high elevation
snow to portions of northeast california and northern nevada into
tonight before drier weather returns through at least Wednesday
night. A low chance for light rain and very high elevation snow
returns late in the week. Mild temperatures are expected Tuesday
through the rest of the week.

Short term
Increasing winds aloft with an incoming disturbance nearing the
pacific northwest coast have induced better mixing for much of
northeast ca and extreme western nv overnight, with winds out in
the basin and range expected to pick up a bit by this afternoon.

This will allow for better mixing for the lower valleys and should
help to mediate air quality concerns.

Weak warm air advection precipitation will accompany the
aforementioned disturbance into tonight, with light rain possible
for the northern sierra, northeast california, and nevada generally
north of a pyramid lake to lovelock line. Dry air ahead of the
incoming light precipitation over northeast ca is allowing snow
levels to be somewhere between 6,500 and 7,500 feet east of the
crest; however, snow levels should rise to around 9,000 to 10,000
feet east of the crest today with the warm air advection so impacts
from the light precipitation will be minimal.

The ridge strengthens over the west Tuesday, which will deflect
most of the moisture and the storm track into the pacific northwest.

Temperatures will warm up through mid-week into the upper 50s to
upper 60s for valleys. Some guidance is hinting at lower valley
temperatures into the lower 70s, but our thinking is that inversions
will set up again by midweek as winds aloft decrease and clearer
skies allow for colder overnight lows. This will make it difficult
to fully mix and reach those temperatures. -snyder edan

Long term Thanksgiving into early next week...

the overall trend will be for cooling and a possibly more active
pattern. However, there is considerable disagreement between the
short waves in the GFS ec and their ensembles. Overall, trended pops
a little higher as we head into early next week, but didn't go that
high due to the timing uncertainty.

Thanksgiving day the models are in good agreement with a weakening
wave passing by to the north into oregon. Winds aloft increase a
little, but the biggest impact will be the increase in cloud cover
and chance of showers near the oregon border. The changes here
were to increase the cloud cover and also decrease temperatures a
bit. The cloud cover will have a pretty big impact on the diurnal
range if it is cloudy and thanksgiving could be quite a bit cooler
than Wednesday in the valleys if this were to occur.

Friday may be the driest day between short waves before the next set
of waves arrive for the weekend into early next week. This is where
there is quite a divergence in timing between the models. The gfs
has a weakening system Saturday, dry Sunday with a stronger, colder
system Monday. The ec has the two waves closer together with moisture
for the weekend, but drier Monday. It is also warmer overall, but
not as warm as the current system. Until things become clearer, just
went with a chance for NE california and a slight chance elsewhere.

Winds may also be strong at times, but with the disparity went with
locally breezy conditions and gusty winds over the ridges for now.

Aviation
Areas of MVFR CIGS in NE ca today through about 03z as a warm front
moves through with -ra.VFR conditions expected elsewhere. Winds will
be locally gusty through 00z today as ridge winds gust to 60 kts.

Mtn wave turbulence will be widespread, but we are not expecting any
llws. Later tonightVFR conditions are expected and will likely
last into at least Wednesday. Locally gusty winds will occur in
the mountains with some mtn wave turbulence, but it likely won't
be as strong as today.

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, CA7 mi30 minS 125.00 miFog/Mist43°F39°F89%1020 hPa

Wind History from TVL (wind in knots)
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Last 24hrCalmNE3NE7NE4S6S9S6SW6SW3CalmCalmCalmSW3CalmSW3S63S7S4S9
G19
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1 day agoCalmCalmNE6NE6NE5N5CalmCalmCalmCalmCalmCalmCalmS4SW3CalmCalmCalmCalmCalmCalmCalmS4S4
2 days agoS11S8S75NE6NE5CalmCalmCalmCalmCalmCalmS4CalmS3S3S4S4S3S3S4CalmS3Calm

Tide / Current Tables for Sacramento #4, Sacramento River, California
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Sacramento #4
Click for Map
Mon -- 03:56 AM PST     -0.10 feet Low Tide
Mon -- 06:53 AM PST     Sunrise
Mon -- 08:40 AM PST     Moonrise
Mon -- 08:50 AM PST     2.32 feet High Tide
Mon -- 03:12 PM PST     0.76 feet Low Tide
Mon -- 04:49 PM PST     Sunset
Mon -- 06:49 PM PST     Moonset
Mon -- 07:11 PM PST     2.93 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
10.60.2-0-0.10.20.91.62.22.32.21.91.51.10.90.80.91.62.52.92.92.62.31.8

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 -- 03:56 AM PST     -0.10 feet Low Tide
Mon -- 06:53 AM PST     Sunrise
Mon -- 08:40 AM PST     Moonrise
Mon -- 08:50 AM PST     2.33 feet High Tide
Mon -- 03:12 PM PST     0.76 feet Low Tide
Mon -- 04:49 PM PST     Sunset
Mon -- 06:49 PM PST     Moonset
Mon -- 07:11 PM PST     2.94 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
10.60.2-0-0.10.20.91.62.22.32.21.91.51.10.90.80.91.62.52.92.92.72.31.8

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 (12,3,4,5)
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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.