Thursday, May24, 2018 L-36.com


Marine Weather and Tides
Sunnyside-Tahoe City, 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 5:37AMSunset 8:17PM Thursday May 24, 2018 6:39 PM PDT (01:39 UTC) Moonrise 2:28PMMoonset 2:15AM Illumination 77% Phase: Waxing Gibbous; Moon at 10 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 Sunnyside-Tahoe City, CA
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location: 39.18, -120.15     debug


Area Discussion for - Reno, NV
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Fxus65 krev 242109
afdrev
area forecast discussion
national weather service reno nv
209 pm pdt Thu may 24 2018

Synopsis
Be prepared for a wet and chilly start to the memorial day
weekend. Strong thunderstorms this evening will produce heavy
rain, hail, gusty winds and dangerous lightning. Rain and high
elevation snow on Friday and Saturday will impact outdoor
activities. Warmer conditions will kick in the second half of the
holiday weekend, though a few showers and thunderstorms remain
possible.

Discussion
An active 48 hours or so is upon us. First hazard is strong
showers and thunderstorms this afternoon and evening. Second
threat is an another round of rain, high elevation snow and
thunderstorms for Friday into Saturday.

For the rest of this afternoon and this evening. Models and high
resolution convection resolving simulations merge the storms over
lyon, douglas alpine and northern mono counties into a cluster
of thunderstorms northward across reno-tahoe-carson and into
plumas lassen northern washoe counties after sunset. Main threats
here are heavy rain, hail, gusty outflow winds and dangerous
lightning. Moist soils will aid in efficient run-off so minor
flood issues are possible, especially in urban areas with rapid
increase in flow on smaller creeks and streams. There is potential
debris rock mud flows impacting roads near steep terrain or burn
scars. Have a plan to get to a sheltered location if threatening
weather approaches your location.

Core of the low will move into the sierra late tonight or early
Friday morning, with a new round of showers developing just
before sunrise. This should morph into an area of rain and high
elevation (+8000 ft) snow across western nevada and the sierra
during the morning. Have issued a winter weather advisory to
highlight the threat for accumulating snow on the high sierra
passes (mt rose, carson, ebbetts, sonora, tioga) and those heading
out for a weekend on the trails. It may be best to wait until
Sunday to venture into the backcountry. Strong thunderstorms are
also possible Friday afternoon across mineral, churchill and
pershing counties. Outflow winds, hail, and heavy rain are
possible.

The low will pass over western nv on Saturday, the weaker side
of the low, so shower and thunderstorm activity will decrease. A
northerly surface wind and the low overhead will keep
temperatures down, thinking highs in the 60s for the valleys with
50s in the sierra. Warm up kicks in Sunday as the low moves off,
though lingering moisture will leave a small threat for showers
and thunderstorms along the sierra crest through memorial day.

Temperatures will feel on the hot side for Tuesday-Wednesday,
though the warmth will start to rebuild instability ahead of the
next area of low pressure. Wednesday could be the day with the
most shower and thunderstorm activity next week. Brong

Aviation
Thunderstorms will continue a develop fairly quickly over sierra
and western nevada (mostly west of klol knfl in current
simulations). More organized and potentially stronger storms than
are typical (for the area) are expected due to increased upper
level support from low pressure nearing the california coast.

Thunderstorms today could produce gusty outflow winds in excess of
35-40 kts along with hail up to around an inch in diameter. Strong
to severe turbulence is likely near any thunderstorms and brief
heavy to torrential rain will likely reduce vsbys to MVFR or less at
times, with brief MVFR CIGS possible, especially for tahoe area
terminals.

Thunderstorms are expected to congeal as they move north of
interstate 80 this evening, with an increased threat for severe
outflow winds in excess of 45 kts over northeast ca and far
northwest nv. After a brief break in activity, more widespread rain
with a few embedded thunderstorms is expected to develop late
tonight and Friday as low pressure moves into california and nevada.

While the storms will not be as strong as today, the widespread
nature of the rain is likely to produce more areas with MVFR
cigs vsbys and more wide-ranging mountain obscurations. -snyder

Rev watches warnings advisories
Nv... Flood watch until 5 pm pdt this afternoon nvz003.

Winter weather advisory from 5 am Friday to 5 am pdt Saturday
above 8000 feet in nvz002.

Ca... Flood watch until 5 pm pdt this afternoon caz073.

Winter weather advisory from 5 am Friday to 5 am pdt Saturday
above 8000 feet in caz072-073.

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 mi55 minN 010.00 miMostly Cloudy57°F46°F67%1018.6 hPa
South Lake Tahoe, Lake Tahoe Airport, CA20 mi47 minN 06.00 miThunderstorm in Vicinity Light Rain Fog/Mist50°F48°F96%1016.4 hPa
Carson City Airport, NV22 mi45 minWSW 33.00 miThunderstorm Light Rain59°F55°F88%1016.9 hPa

Wind History from TRK (wind in knots)
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Last 24hrW7W5CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm--E3SE9SW8SW8SW4N3CalmW11
G22
1 day agoCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmSE3CalmNW7NE5CalmSW15
G21
CalmCalmSW3
2 days agoCalmSE3CalmCalmSE4S3SE3CalmE3CalmCalmCalmCalmCalmCalmCalmE4E6SW3SE4SE6SW6W11
G15
W10
G14

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

Thu -- 03:20 AM PDT     Moonset
Thu -- 04:13 AM PDT     2.78 feet High Tide
Thu -- 05:47 AM PDT     Sunrise
Thu -- 11:56 AM PDT     0.23 feet Low Tide
Thu -- 03:33 PM PDT     Moonrise
Thu -- 04:12 PM PDT     2.19 feet High Tide
Thu -- 08:18 PM PDT     Sunset
Thu -- 11:57 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
0.10.81.62.42.82.72.421.510.60.30.20.61.21.82.22.11.91.51.10.70.40.1

Tide / Current Tables for Sacramento #4, Sacramento River, California
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Sacramento #4
Click for Map
Thu -- 03:20 AM PDT     Moonset
Thu -- 04:13 AM PDT     2.77 feet High Tide
Thu -- 05:47 AM PDT     Sunrise
Thu -- 11:56 AM PDT     0.23 feet Low Tide
Thu -- 03:33 PM PDT     Moonrise
Thu -- 04:12 PM PDT     2.18 feet High Tide
Thu -- 08:18 PM PDT     Sunset
Thu -- 11:56 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
0.10.81.62.42.82.72.421.510.60.30.20.61.21.82.22.11.91.51.10.70.40.1

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 (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.