Monday, May29, 2017 L-36.com


Marine Weather and Tides
Topaz, CA

Version 3.4
What's New / NOTES
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 5:35AMSunset 8:19PM Monday May 29, 2017 8:38 PM PDT (03:38 UTC) Moonrise 9:49AMMoonset 12:00AM Illumination 21% Phase: Waxing Crescent; Moon at 5 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 Topaz, CA
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location: 38.67, -119.53     debug


Area Discussion for - Reno, NV
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Fxus65 krev 292220
afdrev
area forecast discussion
national weather service reno nv
320 pm pdt Mon may 29 2017

Synopsis
Above average temperatures will persist through Tuesday with
continued spring sierra snowmelt leading to cold and swift flows
near creeks and rivers. There will be a low chance for thunderstorms
near the sierra this afternoon, and south of highway 50 Tuesday.

A weak low will bring a cool down Wednesday with a few showers
possible. Warmer and drier weather returns for late week.

Short term
Added isolated showers and thunderstorms to some areas south of
highway 50 and the virginia range (east of reno) for Tuesday,
otherwise only minor changes to temperatures to insure a reasonable
day-to-day trend for the next few days.

Isolated to widely scattered showers and thunderstorms have
developed on the west slopes of the sierra near the snow line and
north of portola, with timing earlier and coverage greater than
yesterday. The earlier convection and greater coverage may be
partly due to a slight enhancement of upper lift divergence ahead
of an incoming upper wave near the northern ca coast. Northeast
california sierra storms today should remain modest, with occasional
lightning strikes, wind gusts to 35 mph, and brief light to moderate
rain.

Sierra northeast ca convective development is likely to fall off
quickly around sunset as it appears highly dependent on the daytime
heating (modest upper forcing). As we go into late afternoon and
early evening, the hrrr also shows a few cells trying to develop
out into western nv south of highway 50 and west of highway 95.

With a very dry sub-cloud layer out in the basin, any cumulus
that manage to build up to moderate depth are unlikely to produce
measurable surface rain, especially given the expected weakness of
convective development.

Tuesday, isolated showers and thunderstorms were added to some areas
south of highway 50 across mono county and out into far western nv.

This is due to more of a southerly flow aloft with slower scouring
of instability in those areas compared to previous simulations.

Also, low level forcing looks better in far western nv compared with
today with a zephyr-like flow in the afternoon to aid convergence.

Wednesday, a trough axis will swing through northeast ca and western
nv. That disturbance is expected to have deeper moisture with which
to work. However, instability is very poor in simulations and there
will be some drier air in the low levels to overcome. Therefore,
while it looks like at least scattered showers in northeast ca closer
to the upper disturbance, western nv and the sierra from around tahoe
south may have difficulty getting more than a few brief showers
and or virga. In any case, it will be considerably cooler with highs
around average on Wednesday. Snyder

Long term Thursday through Monday...

Thursday through Saturday, moderate ridging aloft is expected to
build over the region with highs returning to well above average
by Saturday. On Sunday, simulations are still arguing a bit with
an upper low moving into the northwest conus. The question is
whether the low will dig farther south into oregon or remain mainly
over washington. It is currently mainly a temperature and wind
forecast, with high temperature variations between the lower 80s
and lower 90s for western nv valleys depending on how close the
low gets (closer, cooler), with possible breezy conditions with
gusts around 30-40 mph if the stronger solutions pan out. Snyder

Aviation
Isolated to widely scattered showers and isolated thunderstorms
are occurring over the sierra today, mainly near and west of the
crest north of highway 50. Activity should mainly remain west of a
ksve to ktrk to ktvl line, but there is a 10% chance for a direct
hit at terminals along that line. Any storms should remain modest
with a few lightning strikes, brief light-moderate rain, and wind
gusts to 30 kts.

For Tuesday, SW winds increase with peak gusts to around 25 kts.

Isolated thunderstorms are still possible south of highway 50 out
into far western nv. A few showers are possible on Wednesday as a
weak trough moves in, but it looks to remainVFR at this time.

Snyder wallmann

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, CA30 mi45 minVar 310.00 miOvercast62°F37°F40%1016.2 hPa

Wind History from TVL (wind in knots)
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Last 24hrCalmCalmS3S43CalmS3S3S4SW3CalmCalm3NE6NE73CalmN75Calm3CalmE19
G28
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1 day agoS3SW3SW3S5CalmS4S4CalmCalmS5S3CalmNE5NE74NE8N73--5N63CalmCalm
2 days agoCalmS34CalmCalmSW5S7S4CalmS5--S3NE8
G15
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36N3Calm

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map and Satellite Images
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Weather Map
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IR Satellite Image from GEOS
west_satellite

GOES Local Image of CentralWestCoast    EDIT
Geos

Wind Forecast for Reno, NV (23,6,7,8)
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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.