Thursday, April27, 2017 L-36.com


Marine Weather and Tides
Klickitat, WA

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 5:49AMSunset 8:09PM Thursday April 27, 2017 7:29 PM PDT (02:29 UTC) Moonrise 6:10AMMoonset 8:49PM Illumination 4% Phase: Waxing Crescent; Moon at 2 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 Klickitat, WA
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location: 46.09, -121.02     debug


Area Discussion for - Pendleton, OR
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Fxus66 kpdt 272151
afdpdt
area forecast discussion
national weather service pendleton or
250 pm pdt Thu apr 27 2017

Short term Tonight through Sunday afternoon... Scattered rain and
snow showers over the southern blue mountains will continue through
this afternoon and then taper off and end by late this evening.

Water vapor satellite imagery loop shows a mid/upper level ridge of
high pressure with ridge axis near 140w this afternoon. The ridge
will move slowly eastward over the next couple of days, thus
providing dry conditions to the interior pacific northwest. Then a
weak mid/upper level shortwave moves over and through the ridge on
Saturday night and Sunday spreading showers over the mountains with
snow level 6000-7000 feet Saturday night and Sunday. Wind advisory
remains in effect for the kittitas valley until 9 pm pdt. Polan

Long term Sunday night through Tuesday night... A dry nwly flow
will be over the region on Sunday night. On Monday a low amplitude
ridge will build over the area with dry and warm conditions. Highs
will be well into the 60s lower elevations with 50s mountains. On
Monday night and into the first part of Tuesday a weak disturbance
embedded in the nwly flow aloft will graze the area... Passing mostly
to the north. This may produce a few light mountain rain showers. It
will be warm on Tuesday with highs in the 70s lower elevations with
mid 50s to lower 60s mountains. 78
Wednesday morning through Friday morning... Models are in reasonable
agreement that a ridge will be centered along the coast with little
in the way of sensible weather expected through the day on Thursday.

Temperatures on Wednesday will be warm with highs in the upper 70s
in the lower elevations and 60s in the mountains. Thursday will be
even warmer with a good portion of the area approaching 80 for a
high. Model agreement begins to fade on Thursday with the ecmwf
breaking down the ridge quickly as a trough approaches from the
west. The GFS is slower and weaker with this feature. Have opted to
defer to the GFS for now as it been most consistent over the last
couple runs while substantial differences have appeared between
ecmwf runs. As the ridge begins to break down Thursday night into
Friday showers and possibly a few rumbles of thunder will return to
the area. Peck

Aviation 00z tafs...VFR conditions will prevail through the
forecast period. Fairly extensive sc field developed today with
daytime heating. Expect much of this activity to dissipate after
sunset. However there will be a few lingering clouds at 5-7 kft and
some mid cloud above tonight. There will be fewer clouds on Friday.

Winds will be 15-25 kt early this evening but decrease overnight to
5-15 kt and continue on Friday. 78

Preliminary point temps/pops
Pdt 37 58 37 63 / 10 10 0 0
alw 42 61 42 65 / 10 10 0 0
psc 40 65 38 68 / 10 0 0 0
ykm 37 64 37 66 / 10 10 0 0
hri 40 63 37 66 / 10 0 0 0
eln 38 60 36 62 / 10 10 0 0
rdm 25 55 25 63 / 20 10 0 0
lgd 35 54 34 61 / 20 10 10 0
gcd 30 53 27 62 / 50 10 0 0
dls 42 62 41 65 / 10 10 0 0

Pdt watches/warnings/advisories
Or... None.

Wa... Wind advisory until 9 pm pdt this evening for waz026.

99/78/78


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
The Dalles Municipal Airport, WA33 mi37 minWNW 16 G 2710.00 miPartly Cloudy53°F37°F57%1017.9 hPa

Wind History from DLS (wind in knots)
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Last 24hrW8W6W9
G14
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NW7W13W13W7W11W12NW13NW12NW18
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G31
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1 day agoS3NW6NW6W3CalmCalmS4CalmCalmW5SE5NW12W12W9NW12NW16
G23
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NW17NW15W11
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NW8
2 days agoW14NW6W83NW11NW12NW12W18
G23
W15
G22
W11SW7SW8W13NW10NW7N84N5NW6N6N4CalmNW5N3

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

Thu -- 04:25 AM PDT     1.13 feet Low Tide
Thu -- 06:03 AM PDT     Sunrise
Thu -- 07:17 AM PDT     Moonrise
Thu -- 08:32 AM PDT     9.61 feet High Tide
Thu -- 05:11 PM PDT     -1.13 feet Low Tide
Thu -- 08:12 PM PDT     Sunset
Thu -- 09:34 PM PDT     8.22 feet High Tide
Thu -- 09:53 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.33.92.61.71.21.53.97.19.39.58.87.45.63.71.90.4-0.6-1.1-0.32.45.67.88.27.6

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

Thu -- 04:00 AM PDT     1.13 feet Low Tide
Thu -- 06:04 AM PDT     Sunrise
Thu -- 07:18 AM PDT     Moonrise
Thu -- 08:06 AM PDT     9.61 feet High Tide
Thu -- 04:46 PM PDT     -1.13 feet Low Tide
Thu -- 08:13 PM PDT     Sunset
Thu -- 09:08 PM PDT     8.22 feet High Tide
Thu -- 09:54 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.73.32.21.41.12.35.28.29.69.38.36.74.82.91.2-0.1-0.9-1.10.73.86.88.287.2

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 Pendleton, OR (22,6,7,8)
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Ground Weather Radar Station Pendleton, 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.