Monday, May29, 2017 L-36.com


Marine Weather and Tides
Etna, 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 5:36AMSunset 8:40PM Monday May 29, 2017 8:17 AM PDT (15:17 UTC) Moonrise 8:57AMMoonset 11:32PM Illumination 17% 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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PZZ450 Pt St George To Cape Mendocino Out 10 Nm- 226 Am Pdt Mon May 29 2017
Today..NW winds 5 to 10 kt. Waves nw 4 ft at 5 seconds...and nw 2 ft at 14 seconds. Patchy drizzle.
Tonight..NW winds 5 to 10 kt. Waves nw 4 ft at 5 seconds... And nw 2 ft at 14 seconds. Patchy fog.
Tue..NW winds 5 to 10 kt. Waves nw 4 ft at 5 seconds...and nw 2 ft at 12 seconds. Slight chance of showers.
Tue night..N winds 5 to 10 kt. Waves nw 3 ft at 5 seconds... And nw 2 ft at 13 seconds.
Wed..W winds up to 5 kt. Waves W 4 ft at 13 seconds.
Thu..NW winds 5 to 10 kt. Waves nw 3 ft at 5 seconds...and W 5 ft at 11 seconds.
Fri..N winds 10 to 20 kt. Waves nw 5 ft at 5 seconds...and W 4 ft at 10 seconds.
PZZ400 226 Am Pdt Mon May 29 2017
Synopsis for northern california waters..North winds will increase through today as high pressure offshore builds toward the coast. Short period wind waves will build as a result and peak by Mon evening. Northerly winds will ease Tue and Wed as the offshore ridge becomes perturbed by a front.

7 Day Forecast for Marine Location Near Etna, CA
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location: 41.34, -123.02     debug


Area Discussion for - Medford, OR
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Fxus66 kmfr 290937
afdmfr
area forecast discussion
national weather service medford or
237 am pdt Mon may 29 2017

Discussion A strong upper ridge of high pressure continues to
dominate our weather this morning, but things will begin changing
today as a trough approaches from the west. The ridge axis has
already shifted just east of us, and this will allow for an
increase in moisture and instability which will lead to some
thunderstorms today. The focus remains over the mountains where
instability is strongest, capping the weakest, and where the
terrain can provide its own trigger. Modest height falls and some
pva this afternoon will also provide additional trigger to boost
the thunderstorm potential today. As mentioned, the bulk of storms
should remain in the mountains, but steering flow is slightly
east of due south, which may allow a storm to drift out over the
valleys late today. There is a lot of convective inhibition in the
valleys, but if a storm is able to get off the mountains, there
is a lot of low level instability to work with.

Tomorrow will be noticeably cooler and showery as the upper trough
moves onshore. The GFS has backed off on the hefty precipitation
it had been showing, and now the models generally agree that we'll
see some showers Tuesday, but not a big deal. We could still see
a thunderstorm from crater lake east on Tuesday, but this also
shouldn't be a big deal.

The remainder of the week should be relatively quiet with zonal
flow aloft, temperatures around normal, and some passing showers
from time to time. We may start to warm up a little next weekend
as ridging develops offshore. This will also lead to a thermal
trough and stronger north winds over the waters. -wright

Aviation 29 06z TAF cycle... A mix of MVFR ifr ceilings will
persist over the coastal waters and along the coast tonight
into Monday with patchy fog and drizzle. Marine stratus will
spread into the umpqua basin, including roseburg around 09z
with MVFR prevailing there through about 19z. The low CIGS will
erode back to near the coast Monday afternoon. The rest of the area
will beVFR. However, isolated afternoon and evening showers and
thunderstorms are possible from western siskiyou county up the
cascades Monday afternoon and evening... Which may be accompanied by
locally gusty winds and small hail.

Marine Updated 200 am Monday 29 may 2017... Winds are currently
light over the area... But there is widespread stratus and fog that
could produce some drizzle and occasionally reduce visibilities to
less than a half of a mile.

North winds have already started to increase this morning as a
thermal trough redevelops. Winds and seas will peak this afternoon
(likely below small craft advisory levels), then will weaken as a
disturbance moves onshore Tuesday. Additional weak disturbances will
keep generally light, variable winds and low seas over the area
Wednesday Thursday and even into Friday. The thermal trough is now
expected to return late Friday into next weekend with strengthening
north winds and steepening seas over most of the area, especially
south of CAPE blanco. -spilde bpn

Mfr watches warnings advisories
Or... None.

Ca... None.

Pacific coastal waters... None.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CECC1 - 9419750 - Crescent City, CA 68 mi48 min SSW 1 G 1.9 51°F 52°F1018.1 hPa
HBYC1 - 9418767 - North Spit, CA 75 mi48 min NNE 9.9 G 12 51°F 51°F1019 hPa
46244 - Humboldt Bay, North Spit, CA 77 mi27 min 51°F3 ft

Wind History for Crescent City, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Mount Shasta, CA37 mi22 minN 010.00 miFair64°F48°F58%1016.5 hPa

Wind History from MHS (wind in knots)
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Last 24hrCalmCalmCalmCalmCalm3Calm3CalmCalmCalmCalmCalmCalmCalm3NE33CalmCalmCalmCalmCalmCalm
1 day agoCalmSW33CalmCalmCalmCalmCalm3CalmCalmCalmCalmCalmNE3CalmCalmCalmCalmCalmCalmCalmCalmCalm
2 days agoCalmCalmCalmCalm34CalmCalm3333CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm

Tide / Current Tables for Trinidad Harbor, California
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Trinidad Harbor
Click for Map
Mon -- 02:22 AM PDT     7.05 feet High Tide
Mon -- 05:47 AM PDT     Sunrise
Mon -- 09:24 AM PDT     -1.69 feet Low Tide
Mon -- 10:02 AM PDT     Moonrise
Mon -- 04:12 PM PDT     5.77 feet High Tide
Mon -- 08:40 PM PDT     Sunset
Mon -- 09:33 PM PDT     2.37 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.26.476.964.52.60.7-0.8-1.6-1.5-0.60.82.54.15.35.85.64.93.932.52.43

Tide / Current Tables for Arcata Wharf, Humboldt Bay, California
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Arcata Wharf
Click for Map
Mon -- 03:21 AM PDT     7.46 feet High Tide
Mon -- 05:48 AM PDT     Sunrise
Mon -- 10:03 AM PDT     Moonrise
Mon -- 10:22 AM PDT     -1.56 feet Low Tide
Mon -- 05:12 PM PDT     5.95 feet High Tide
Mon -- 08:39 PM PDT     Sunset
Mon -- 10:28 PM PDT     2.59 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.55.86.87.47.36.44.82.90.9-0.7-1.5-1.4-0.41.12.74.35.45.95.85.14.13.22.72.7

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 Medford, OR (11,2,3,4)
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Ground Weather Radar Station Medford, OR
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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.