Sunday, December16, 2018 L-36.com


Marine Weather and Tides
Kingvale, CA

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:13AMSunset 4:40PM Sunday December 16, 2018 6:31 PM PST (02:31 UTC) Moonrise 1:09PMMoonset 12:34AM Illumination 71% Phase: Waxing Gibbous; Moon at 9 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 Kingvale, CA
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location: 39.32, -120.44     debug


Area Discussion for - Reno, NV
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Fxus65 krev 162343
afdrev
area forecast discussion
national weather service reno nv
343 pm pst Sun dec 16 2018

Synopsis
Low pressure will bring gusty winds through this evening, with
light to moderate snow in the sierra and for the higher elevations
of northeast california tonight and early Monday. Travel impacts
can be expected across sierra passes into Monday morning. Generally
quiet and dry weather is expected to persist for much of this
week with temperatures remaining relatively mild.

Short term
No big changes to the forecast through Wednesday. After the gusty
winds and modest higher elevation snow tonight and Monday morning,
the weather will turn drier quieter as a ridge builds over the
sierra and western nevada.

Regarding precipitation through Monday morning with an approaching
cold front (currently near the northwest ca coast), rain and higher
elevation snow is just working into northeast california north of
portola this afternoon. This is due to southerly flow aloft parallel
with the incoming front making for slow progress of the frontal zone.

However, by later this evening, flow aloft is expected to begin turning
more westerly as the upper trough begins to push towards the coast,
with the main band of rain and snow surging into the sierra and
northeast ca.

Snow is still expected to begin impacting the tahoe basin between 7
and 10 pm. Showers are expected to eventually spill into western nv,
most widespread after midnight as increased instability aloft with
the trough allows precipitation to spill over more efficiently.

Qpf amounts still look rather light across western nv with the
main focus still on the west side and up to the sierra crest. Snow
will continue overnight and then taper quickly Monday morning as
the front dynamics shift out of the region. In fact snow may be
over for the tahoe basin by daybreak and end across the sierra in
mono county before noon. The area of most uncertainty for snowfall
totals will be below 6500 feet in the tahoe area as snow levels
are not expected to fall off until near the frontal passage just
before daybreak Monday. Anywhere from a half-inch to up to 3
inches will be possible at lake level, with the highest amounts
likely to be near or west of highway 89.

Clouds will decrease to partly cloudy in most areas during the
day Monday, with conditions improving across the sierra after 10
am. Temperatures will be 5-10 degrees cooler Monday for eastern
ca, western nv, and west-central nv south of highway 50. However,
north of hwy 50 in the basin and range temperatures may wind up
similar to today as it hasn't gotten out of the 40s (valleys not
mixing out well) there so far today.

Monday night through Wednesday, the weather turns drier quieter
as high pressure builds over the region. The only exception will
be north of susanville and gerlach where a weak brush-by system
could flatten the ridge enough to bring some very light showers
Tuesday and Tuesday night. Temperatures will remain relatively
mild Tuesday and Wednesday with no major influx of colder air
behind tonight's system. -snyder

Long term Thursday through next weekend...

changes in the extended forecast were relatively minor, with an
upward trend for precip chances late Thursday night in northeast
ca far northwest nv. We also introduced slight chances for light
precip from late Saturday night through Sunday, mainly north of
i-80.

The overall pattern for later next week through next weekend
appears to be trending toward zonal flow aloft, with fast moving
shortwaves across the northwest us and northern great basin. This
remains a low confidence scenario due to the timing differences
with these waves. Thursday looks to be dry and mild with highs
mainly in the 50s. Then there appears to be a little better
agreement with the first wave passing through late Thursday night
into Friday, bringing a short period of light precip (mainly rain
with snow levels generally 5500-6000 feet) across parts of northeast
ca and far northwest nv.

After a short break between systems late Friday through Saturday
(areas of clouds will remain with passing sprinkles possible, along
with a few degrees of cooling), the next wave looks to move across
far northern nv or southern oregon idaho late Saturday night through
Sunday. The precip potential again favors northeast ca-northwest nv,
with the main difference being lower snow levels (early projections
of 4500-5500 feet, possibly lower near the oregon border). Only
light amounts of rain and snow are anticipated with this event.

After next weekend, another shortwave could arrive around the
christmas holiday. This feature may have a bit more consistency
in terms of timing, but the track is highly variable so overall
forecast confidence remains low. Colder scenarios dig a closed low
southeast across ca, which could potentially bring light snowfall
amounts to the sierra and far western nv. Warmer scenarios show a
more progressive trough across the northern great basin, which would
result in spotty light rain for valleys. In either case, the potential
for significant precip amounts is low. Mjd

Aviation
Southerly winds have increased across the region this afternoon with
ridge level winds around 80-90 kts and surface gusts reaching up to
30 kts. Expect these winds to continue through the evening hours
tonight with moderate turbulence and possible llws as a shortwave
trough moves through the sierra and western nevada. Winds are
forecast to decrease in magnitude by midnight as precipitation picks
up in intensity, especially for the tahoe basin terminals (ktvl ktrk).

Clouds will increase in coverage throughout the night as moisture
moves in. Due to the system's southerly trajectory, any significant
precipitation will likely be limited to ktvl and ktrk, where an
accumulation of up to an inch or two of snow is possible.

Precipitation will start around 01 02z this evening as a light
rain snow mix (MVFR conditions) and then will change over to all
snow around 10-12z as snow levels drop (ifr conditions). Expect
light snow to fall until sunrise on Monday as the system's
associated cold front moves through the region.

As for krno kcxp kmmh, not much precipitation is forecast due to
shadowing effects with only a brief window favorable for spillover
late tonight early Monday. Little snow accumulation is expected
for kmmh with light rain showers for krno kcxp.

The system will makes its way out of the region by Monday afternoon
followed by a break in the active weather pattern as high pressure
briefly builds over the u.S. Southwest for the middle of this week.

-laguardia

Rev watches warnings advisories
Nv... Lake wind advisory until 5 am pst Monday for lake tahoe in nvz002.

Ca... Lake wind advisory until 6 pm pst this evening for lake tahoe in
caz072.

Winter weather advisory from 6 pm this evening to 10 am pst
Monday caz072.

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
Emigrant Gap, Blue Canyon Nyack Airport, CA14 mi40 minSSE 810.00 miLight Rain40°F28°F65%1017.1 hPa
Truckee-Tahoe, CA16 mi57 minSW 12 G 2410.00 miOvercast41°F28°F61%1018.3 hPa

Wind History from BLU (wind in knots)
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Last 24hrSE8SE7SE8SE7
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1 day ago--S8S7SE5SE4SE6SE5SE6SE9
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2 days agoSE5SE3SE4SE4SE7SE7--SE6
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Tide / Current Tables for Sacramento #4, Sacramento River, California
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Sacramento #4
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Sun -- 12:39 AM PST     Moonset
Sun -- 12:56 AM PST     1.92 feet High Tide
Sun -- 07:17 AM PST     Sunrise
Sun -- 08:43 AM PST     0.20 feet Low Tide
Sun -- 01:12 PM PST     Moonrise
Sun -- 02:17 PM PST     2.51 feet High Tide
Sun -- 04:46 PM PST     Sunset
Sun -- 10:13 PM PST     0.45 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.81.91.91.71.410.60.40.20.20.51.11.72.22.52.52.21.91.51.10.80.60.50.6

Tide / Current Tables for Clarksburg #4, Sacramento River, California
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Clarksburg #4
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Sun -- 12:39 AM PST     Moonset
Sun -- 07:13 AM PST     0.20 feet Low Tide
Sun -- 07:16 AM PST     Sunrise
Sun -- 01:08 PM PST     2.51 feet High Tide
Sun -- 01:12 PM PST     Moonrise
Sun -- 04:46 PM PST     Sunset
Sun -- 08:43 PM PST     0.45 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.91.81.61.30.90.50.30.20.30.71.31.92.32.52.42.21.81.310.70.50.50.81.3

Weather Map and Satellite Images
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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 (21,6,7,8)
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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.