Saturday, September23, 2017 L-36.com


Marine Weather and Tides
Carson, WA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
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 6:58AMSunset 7:04PM Saturday September 23, 2017 3:00 PM PDT (22:00 UTC) Moonrise 9:29AMMoonset 8:10PM Illumination 11% Phase: Waxing Crescent; Moon at 3 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 Carson, WA
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location: 45.8, -121.91     debug


Area Discussion for - Portland, OR
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Fxus66 kpqr 232121
afdpqr
area forecast discussion
national weather service portland or
220 pm pdt Sat sep 23 2017

Synopsis Mix of Sun and clouds today and Sunday. A weak front
offshore may bring a little light rain or sprinkles to the coastal
areas today. Next front arrives mon, with increasing chance of light
rain. High pressure builds later tue, and remains over the region
through end of next week. This will allow for dry weather, with
above normal temperatures under some offshore flow.

Short term Tonight through Tuesday... Models edge the upper level
ridge a little close to the coast tonight, allowing the surface
ridge to extend NE towards the north wa coast. This brings an end to
the weak low level isentropic lift that brought light rain to the
coastal waters early today. As the ridge moves inland sun, it
flattens out with a couple of weak shortwaves moving into wa sun
night and mon. With few clouds and weak ridging aloft, temps should
warm Sun a few degrees over todays highs.

Mid level moisture spreads in Sun night, but with little apparent
lift overall. However, the low level flow turns southerly along the
south wa coast to inject a some low level moisture as the surface
ridge sinks south, so will keep a slight chance for some light rain
there late Sun night. As upper level ridging rebuilds offshore mon
and the surface ridge remains extending inland over far northwest
or, the chances for rain will be slow to spread inland. Lingering
baroclinicity will keep a slight chance for rain over the northwest
part of the forecast area into Sun night.

Mon sees the building upper ridge pushing in closer to the coast. As
a thermal induced surface trough builds up the oregon coast tue,
flow turns offshore for most of the forecast area. This brings
warming temps, and decreasing clouds.

Long term Upper ridge slowly pushes inland Wed and thu, moving
east towards the northern rockies fri. Low level flow remains
offshore Wed through Fri as the inverted surface trough drifts
offshore and weakens. This will bring warmer than normal temps to
the region inluding the coast, with the warmest days likely to be
wed and thu. By Fri night models in general agreement with pushing a
weak shortwave through the pacific nw, pushing down upper heights
and allowing a weak cold front to move in. While still likely too
dry to carry any sort of mentionable pop, the flattened flow should
still allow some clouds back in, while cooling temps down a few
degrees.

Aviation Vfr all areas to start the evening. Coastal area cigs
look to fall under ifr around midnight, perhaps into lifr cigs
shortly thereafter as winds ease. Inland areas will probably see
patchy stratus but cannot say with certainty if it will cover any
of the terminals. Conditions should again improve toVFR around
mid-day.

Kpdx and approaches...VFR until perhaps around daybreak with
about a 30% chance of a 020 stratus cig. Jbonk

Marine No significant changes. Previous discussion follows. Not
much marine weather to talk about for the next 5 days with winds
less than 15 knots and seas 6 feet or less. As the thermal
trough builds north along the coast early next week, small craft
advisory northerlies are possible by Tuesday night. Bentley

Pqr watches warnings advisories
Or... None.

Wa... None.

Pz... None.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LOPW1 - 9440422 - Longview, WA 59 mi43 min 65°F1018.7 hPa

Wind History for Longview, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure

Wind History from CZK (wind in knots)
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Last 24hr24------------------------SW12
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1 day ago53------------------------322SW632SE2E21S2
2 days ago----------------------------1214334434

Tide / Current Tables for Ellsworth, Washington - IGNORE HEIGHTS
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Ellsworth
Click for MapNote: The Columbia River is subject to annual freshets. Short range predictions are available at local river forecast centers. The data for stations above Harrington Point apply only during low river stages. There is a tidal influence along most of the

Sat -- 06:07 AM PDT     -0.04 feet Low Tide
Sat -- 06:58 AM PDT     Sunrise
Sat -- 10:18 AM PDT     7.52 feet High Tide
Sat -- 10:30 AM PDT     Moonrise
Sat -- 06:09 PM PDT     0.94 feet Low Tide
Sat -- 07:05 PM PDT     Sunset
Sat -- 09:13 PM PDT     Moonset
Sat -- 10:17 PM PDT     8.17 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
6.85.43.92.51.20.3-00.83.35.97.47.46.75.64.43.12.11.30.91.74.16.78.18

Tide / Current Tables for Vancouver, Washington - IGNORE HEIGHTS
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Vancouver
Click for MapNote: The Columbia River is subject to annual freshets. Short range predictions are available at local river forecast centers. The data for stations above Harrington Point apply only during low river stages. There is a tidal influence along most of the

Sat -- 05:42 AM PDT     -0.04 feet Low Tide
Sat -- 06:59 AM PDT     Sunrise
Sat -- 09:52 AM PDT     7.52 feet High Tide
Sat -- 10:31 AM PDT     Moonrise
Sat -- 05:44 PM PDT     0.94 feet Low Tide
Sat -- 07:05 PM PDT     Sunset
Sat -- 09:13 PM PDT     Moonset
Sat -- 09:51 PM PDT     8.17 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
6.24.83.31.90.80.10.11.74.46.77.57.16.35.13.82.61.71.112.65.27.58.27.8

Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of PacificNorthwest    EDIT
Geos

Wind Forecast for Portland, OR (18,4,5,8)
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Ground Weather Radar Station Portland, 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.