Saturday, January20, 2018 L-36.com


Marine Weather and Tides
Carnelian Bay, 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 7:14AMSunset 5:09PM Saturday January 20, 2018 6:34 PM PST (02:34 UTC) Moonrise 9:25AMMoonset 8:46PM Illumination 19% Phase: Waxing Crescent; Moon at 4 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 Carnelian Bay, CA
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location: 39.22, -120.09     debug


Area Discussion for - Reno, NV
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Fxus65 krev 202233
afdrev
area forecast discussion
national weather service reno nv
233 pm pst Sat jan 20 2018

Synopsis
Dry and cool conditions will prevail this weekend as weak high
pressure moves over the region. A weak disturbance may bring very
light snow for parts of eastern california Sunday night and Monday,
but this system is trending drier. A stronger, cold storm is
expected late Wednesday into Thursday, bringing more snow to the
sierra and possibly to lower elevations.

Short term
Changes made to the existing forecast were modest and generally to
lessen overall QPF with the Sunday night Monday morning system.

Short range models continue to open up the already weak wave
projected to move into the region Sunday afternoon and evening.

Only up to 2 inches are now forecast for the higher sierra around
the tahoe basin with up to an inch for the high sierra in mono
county and the tahoe basin below 7000 feet. Still, there could be
a few slick spots, so some caution is warranted for those heading
into and over the sierra.

Otherwise, the biggest impact out of this system will be an
increase in area winds. Gusts are projected to only be 20 to 30
mph out of the south to southwest south of susanville. Gusts could
reach 35 mph, and briefly 40 mph, north of a susanville to
gerlach line where valleys are more efficient in channeling
southerly flow.

Conditions improve Monday as we reload for a more significant
mid-week system. More on that system can be found below. Boyd

Long term Tuesday through Friday...

overall... The changes made in the extended part of the forecast
were geared toward increasing QPF for the mid-week system as the
gfs and ECMWF agree better in the overall evolution of the system.

Most of the region should be dry Tuesday... But some model solutions
do bring weak warm air advection type precipitation into the region
late in the day. Low end pops will remain in the forecast... Mainly
north of susanville... To account for this possibility.

The next significant winter storm should begin to affect the region
Wednesday night and last into Thursday. The forecast models continue
to show some slowing with this system. That has resulted in
increasing snow levels a little Wednesday and Wednesday night and
backing the low level winds. The backing of the winds results in
more southerly flow and less chance for immediate spill over into
western nevada.

The system has been getting wetter over the last few runs; the
integrated vapor transport tools show increasing chances for more
significant moisture transport into the region. This leads to an
increase in QPF from northeast california south through the sierra
and a slight increase in snowfall totals. This still does not look
like a blockbuster-type storm. Its progressive nature means the main
part of the storm is through the region late Thursday with lingering
showers into Friday.

Another warning sign with this storm is a recent development in a
few of the GEFS ensemble members to hint at the possibility of the
storm splitting by early Thursday. This is not supported by most
members... But we have seen multiple cases this winter where systems
look wetter days out then progress toward drier solutions.

Very low end pops were left in for Saturday near the oregon border
as well. Both the GFS and ECMWF hint at another round of weak warm
air advection precipitation. Xx

Aviation
Vfr conditions with few to scattered clouds low clouds will
prevail into the evening hours. Skies are expected to clear
further allowing for areas of freezing fog in sierra valleys. Ktrk
can expect to be socked in until around 12z when mid and high
clouds move into the region. It is likely that freezing fog will
lift into a ifr ceiling for an hour or so then mix out as ridge
winds increase.

Scattered snow showers will occur late Sunday into early Monday
morning for the sierra with the potential for MVFR ceilings at tvl
and trk. More isolated showers will be possible for the sierra
front, but conditions should remainVFR. There should not be much
in the way of snow accumulations for sierra terminals since the
projected weak system continues to weaken with each model run.

Still, winds will increase with gusts to 25 kts and ridge gusts to
45 kts. Expect some moderate turbulence and mountain obscurations.

Flight conditions improve Monday, but a stronger, wetter system is
on tap for Wednesday Thursday. Anticipate degrading conditions by
mid week as a moderate to strong winter storm moves into the
region. Boyd

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, CA7 mi39 minN 010.00 miFair27°F19°F74%1019.6 hPa
Carson City Airport, NV19 mi39 minN 010.00 miFair32°F14°F47%1020.3 hPa
South Lake Tahoe, Lake Tahoe Airport, CA22 mi41 minN 010.00 miFair22°F18°F85%1022.1 hPa

Wind History from TRK (wind in knots)
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Last 24hrSE3CalmCalmW4CalmCalmCalmCalmSE3CalmCalmCalmCalmCalmNW4Calm--CalmSW3N5N4NW5CalmCalm
1 day agoSW10
G28
SW5SW5W5S7W3S6SW7SW4SW9S8CalmCalmNE3CalmCalm--CalmW8W8W4W3W3Calm
2 days agoCalmS11CalmSW12SW7S10
G14
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G23
S9
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S5S14
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----SW11
G21
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G29
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G19
SW28
G35
SW22
G38
SW18
G25
S17
G26
S16
G34
S21
G31
S22
G31

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

Sat -- 04:38 AM PST     -0.01 feet Low Tide
Sat -- 07:20 AM PST     Sunrise
Sat -- 09:30 AM PST     Moonrise
Sat -- 09:50 AM PST     2.56 feet High Tide
Sat -- 04:40 PM PST     0.76 feet Low Tide
Sat -- 05:14 PM PST     Sunset
Sat -- 08:32 PM PST     2.88 feet High Tide
Sat -- 08:53 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.610.50.2000.41.222.42.62.42.11.71.310.80.81.22.12.82.92.72.3

Tide / Current Tables for Sacramento #4, Sacramento River, California
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Sacramento #4
Click for Map
Sat -- 04:37 AM PST     -0.01 feet Low Tide
Sat -- 07:20 AM PST     Sunrise
Sat -- 09:30 AM PST     Moonrise
Sat -- 09:50 AM PST     2.55 feet High Tide
Sat -- 04:39 PM PST     0.75 feet Low Tide
Sat -- 05:14 PM PST     Sunset
Sat -- 08:32 PM PST     2.87 feet High Tide
Sat -- 08:53 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.610.50.2000.41.21.92.42.52.42.11.71.310.80.81.22.12.82.82.72.3

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 (21,6,7,8)
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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.