Friday, November15, 2019 L-36.com


Marine Weather and Tides
Mount Shasta, CA

Version 3.4
NOTICE
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:54AMSunset 4:53PM Friday November 15, 2019 4:07 PM PST (00:07 UTC) Moonrise 7:30PMMoonset 10:01AM Illumination 85% Phase: Waning Gibbous; Moon at 18 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 Mount Shasta, CA
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location: 41.32, -122.32     debug


Area Discussion for - Medford, OR
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Fxus66 kmfr 152245
afdmfr
area forecast discussion
national weather service medford or
245 pm pst Fri nov 15 2019

Discussion Short-term... Tonight through Monday... .A weak front has
passed through the forecast area, and some rain with the front
has been observed over the past 24 hours, primarily from cascades
westward. The highest rainfall (0.88in) was observed in
northwestern douglas county. No rainfall was observed east of the
cascades and in northern california... Or in the rogue valley.

Tonight, rain is not expected, and skies will clear some. We expect
fog in the coastal, umpqua, and illinois valley tonight. Farther
east where there has been no measurable rainfall, we don't expect
much if any fog tonight.

Quiet weather continues after the front on Saturday through Monday
under low amplitude upper ridging. Fog will impact travel more
Saturday and Sunday night as high pressure builds some and
inversions strengthen. Some dense fog is possible in the
aforementioned valleys.

Regarding the air stagnation advisory, the current hazard area
looks fine with stagnant air expected to continue in the rogue
valley and most valleys east of the cascades. Mixing heights will
be close to the thresholds, but without any rain today and light
winds continuing, we don't expect the air mass to change much.

Farther north, the rain has helped to clear the air some in the
umpqua basin, and we expect mixing heights to be higher than 1000
ft agl through the weekend. Therefore we won't be re-issuing the
air stagnation advisory for that area.

Long-term... (Monday evening through Friday)... The frontal
boundary moving through on Tuesday will continue through southern
oregon and northern california through the day. This front is not
expected to bring significant rainfall. Maybe a quarter of an inch
of rain for the coast, with a tenth of an inch or less for the
cascades with a couple hundreths of an inch in the west side
valleys with much less east of the cascades. Snow levels will
start off around 7000 feet and drop to around 4000 feet by
Wednesday night, after the front GOES through. Precipitation
should end by the time by the snow levels reach the passes. As
such, limited travel impacts, if any, are expected. (roads may
become slippery due to oils washing away-- especially in areas
that did not see rain today.)
then we move towards another ridge pattern with gusty east winds and
dry air aloft. This means that we'll get some cold temperatures
(near or below freezing for most of our valleys in southern oregon
and northern california) at night with some rapid drying out,
especially on ridges. This pattern will continue for the next
several days. Temperatures will moderate out into the weekend,
being closer to normal or slightly above normal. -schaaf

Aviation For the 15 18z tafs... Over the coastal waters, along the
coast, in the coast range, and in the umpqua basin... Areas of MVFR
cigs vsbys in low clouds and rain with higher terrain obscured will
persist through this morning. The precipitation will end this
afternoon but the lower CIGS will persist into this evening. Areas
of ifr CIGS vsbys in low clouds and fog will develop tonight,
persisting into Saturday morning. Over the remainder of the
area...VFR conditions will persist into this evening with scattered
light precipitation. Areas of higher terrain will be obscured. Areas
of MVFR CIGS will develop in the valleys tonight, and persist into
Saturday morning. -bpn

Marine Updated 800 am pst Friday 15 november 2019... Despite
light and variable winds, steep and hazardous seas will persist
through Saturday evening. Meanwhile, long period west swell could
create hazardous bar conditions through Saturday. A weak thermal
trough will build along the coast Sunday, producing a brief period
of north winds south of CAPE blanco through Monday morning. The
next front will move onshore Monday night, followed by gusty north
winds and steep to very steep seas Tuesday into Wednesday night.

-bpn

Mfr watches warnings advisories
Or... Air stagnation advisory until noon pst Tuesday for
orz026-029>031.

Ca... None.

Pacific coastal waters... Small craft advisory until 4 pm pst Saturday for
pzz350-356-370-376.



Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Mount Shasta, CA1 mi72 minSW 310.00 miFair58°F42°F56%1023.3 hPa

Link to 5 minute data for KMHS

Wind History from MHS (wind in knots)
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Last 24hrCalmSE3E3E34E4E4E3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmSW3CalmSW3Calm
1 day agoCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmNE3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm
2 days agoCalmCalmCalmCalmCalmCalmCalmCalmNE3NE3CalmCalmCalmCalmCalmCalmCalm4CalmCalmCalm443

Tide / Current Tables for Trinidad Harbor, California
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Trinidad Harbor
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Fri -- 01:38 AM PST     5.65 feet High Tide
Fri -- 06:38 AM PST     3.21 feet Low Tide
Fri -- 07:03 AM PST     Sunrise
Fri -- 10:07 AM PST     Moonset
Fri -- 12:29 PM PST     7.05 feet High Tide
Fri -- 04:57 PM PST     Sunset
Fri -- 07:38 PM PST     Moonrise
Fri -- 07:39 PM PST     -0.53 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.95.55.65.24.53.83.33.23.74.55.56.4776.353.41.80.4-0.4-0.50.11.22.6

Tide / Current Tables for
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Weather Map
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wmap_P
GEOS 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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Medford, OR (19,4,5,8)
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Ground Weather Radar Station Medford, OR
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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.