Friday, January19, 2018 L-36.com


Marine Weather and Tides
Crystal Bay, NV

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 7:14AMSunset 5:08PM Friday January 19, 2018 3:29 PM PST (23:29 UTC) Moonrise 8:52AMMoonset 7:48PM 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 Crystal Bay, NV
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location: 39.22, -120     debug


Area Discussion for - Reno, NV
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Fxus65 krev 192245
afdrev
area forecast discussion
national weather service reno nv
245 pm pst Fri jan 19 2018

Synopsis
Bands of snow showers will develop through this evening producing
patchy slick road conditions mainly from plumas county through
northern mono county. Light accumulations will be possible up to 2
inches for localized areas west of highway 395. After a dry and
cool Saturday, weak low pressure will bring light snow late Sunday
into Monday, with a stronger cold storm possible by midweek.

Short term
The surface cold front has swept through the region ending
widespread chances of snow. Meanwhile, the upper trough is current
swinging through northern california and will be the focal point
for shower development from lassen county through mono county this
evening.

The main change for the forecast was to expand coverage of snow
and snow showers as the upper trough moves through the region.

Short range models are beginning to feature a weak deformation
area, and potential lake enhancement, as the upper low dips
southeast. This upward lift coupled with upslope flow will promote
chances of snow from the tahoe basin through at least northern
mono county this evening. Accumulations will generally be light
this evening and overnight, up to 2 inches, but could be higher if
persistent bands develop. The flow pattern supports these chances
into the overnight hours before the upper low ejects into
southern nevada.

Saturday and most of Sunday will be rather quiet with transient
high pressure over the region. Then, a weak low pressure system
will move through the pacific northwest trailing a boundary into
the northern and central sierra. The primary mechanism for
precipitation east of the sierra crest will be weakly forced
boundary dynamics and some limited warm air advection. As such,
totals expected with this system will be generally light, but
could be a nuisance for trans-sierra travel. Current estimates
are: up to 4 inches below 7000 feet and 4 to 8 above 7000 feet.

There could be some very light accumulation for western nevada,
but signals are not very promising at this time. Showers will
linger through the day on Monday. Boyd

Long term Tuesday through Friday...

some simulations still show a period of light warm air advection
precipitation (mainly snow) across northeast california and
northwest nevada on Tuesday. By Wednesday and Wednesday night, there
is medium-high confidence for a significant system to round the base
of a large-scale northeast pacific trough and push a strong cold
front through the region. The system currently looks better
organized than the system that moved through today as next week's
system is simulated to have the axis of the upper low more
coincident to the surface front. Also, the last couple runs of the
gfs and ec show a better moisture feed with increasing precipitation
amounts simulated. All this points to higher precipitation amounts
as compared to the current system, especially in the sierra.

Right now, either solution would keep precipitation mainly in the
form of snow for the sierra (a chance for a brief rain-snow mix at
lake tahoe level Wednesday). The system is progressive and this will
be a limiting factor for precipitation totals. Still, the sierra
could see a moderate snowfall. For western nevada valleys, it seems
likely that precipitation will start as rain before changing over to
snow behind the cold front later on Wednesday or Wednesday night.

Snowfall amounts for western nevada are too uncertain to predict yet
as it will depend on if snow showers can be maintained for a time
post-frontal (as the cold front is expected to be quite progressive).

Temperature-wise, there is high confidence that colder air will
filter into northeast ca and western nv for Thursday and Friday with
temperatures below normal. Snyder

Aviation
As a trough axis moves over the area this evening, the airmass will
remain unstable for isolated-scattered snow showers. Simulations
continue to show snow showers developing this evening in the sierra
and possibly out into far western nevada; however, the potential for
more widespread and heavier snow showers has shifted to south of
lake tahoe (possible lake effect) and into mono county in recent
high resolution model runs. Occasional terrain obscuration and ifr
conditions will be possible through evening in the northern sierra.

Farther south into alpine and mono counties, more widespread and
longer-lived terrain obscuration will be possible with snow showers.

Snowfall accumulations in the sierra this evening look generally
less than 2 inches north of highway 50, with locally higher amounts
for mono county terminals possible (including kban ko57 kmmh). There
is low confidence on where exactly the higher snowfall totals will
wind up in mono county. For western nevada, little or no
accumulation is expected for terminals.

High pressure builds overhead Saturday forVFR conditions with light
northerly flow. Snyder hohmann

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
Truckee-Tahoe, CA10 mi45 minW 810.00 miA Few Clouds34°F21°F60%1014.2 hPa
Carson City Airport, NV14 mi35 minNW 810.00 miFair43°F8°F24%1013.9 hPa
South Lake Tahoe, Lake Tahoe Airport, CA21 mi37 minS 710.00 miFair32°F21°F64%1013.2 hPa
Reno, Reno Tahoe International Airport, NV23 mi35 minN 11 G 1510.00 miPartly Cloudy45°F19°F37%1012.8 hPa

Wind History from TRK (wind in knots)
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Last 24hrS17
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SW5SW5W5S7W3S6SW7SW4SW9S8CalmCalmNE3CalmCalm--CalmW8W8
1 day ago--S4CalmSE3CalmS11CalmSW12SW7S10
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2 days agoSE5S3CalmCalmCalmSW3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm--CalmSE7SE10S4

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

Fri -- 04:12 AM PST     -0.02 feet Low Tide
Fri -- 07:20 AM PST     Sunrise
Fri -- 08:56 AM PST     Moonrise
Fri -- 09:21 AM PST     2.58 feet High Tide
Fri -- 03:58 PM PST     0.82 feet Low Tide
Fri -- 05:13 PM PST     Sunset
Fri -- 07:49 PM PST     3.02 feet High Tide
Fri -- 07:54 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.30.80.40.1-00.10.81.62.22.62.52.31.91.51.10.90.81.122.832.92.62.1

Tide / Current Tables for Sacramento #4, Sacramento River, California
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Sacramento #4
Click for Map
Fri -- 04:12 AM PST     -0.02 feet Low Tide
Fri -- 07:20 AM PST     Sunrise
Fri -- 08:56 AM PST     Moonrise
Fri -- 09:21 AM PST     2.57 feet High Tide
Fri -- 03:57 PM PST     0.82 feet Low Tide
Fri -- 05:13 PM PST     Sunset
Fri -- 07:48 PM PST     3.01 feet High Tide
Fri -- 07:54 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.30.80.40.1-00.10.71.62.22.52.52.31.91.51.10.90.81.122.832.92.62.1

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 (18,4,5,8)
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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.