Sunday, January21, 2018 L-36.com


Marine Weather and Tides
Klickitat, 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 7:34AMSunset 4:52PM Sunday January 21, 2018 10:13 AM PST (18:13 UTC) Moonrise 10:05AMMoonset 9:47PM Illumination 25% 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 Klickitat, WA
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location: 46.09, -121.02     debug


Area Discussion for - Pendleton, OR
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Fxus66 kpdt 211634
afdpdt
area forecast discussion
national weather service pendleton or
834 am pst Sun jan 21 2018

Short term Strong upper low is pushing a cold front through the
pacific northwest today. Radar would suggest steady snow has
developed over the cascades with some light precip along the east
slopes. Rain and higher elevation snow will spread east across
the forecast area this morning through the afternoon and into the
evening. Cool onshore flow will keep steady snow into the evening
for the cascades with significant accumulations likely. Gradients
ahead of the cold front will increase southerly winds in many
areas this morning into the afternoon. Locally breezy to windy
conditions expected mainly over oregon. 12z models still showing
another fairly significant rain and snow event for the region tue
and Wed as a strong upper low moves through. 94

Prev discussion issued 400 am pst Sun jan 21 2018
short term... Today through Tuesday... A pacific system will move
across the region today and this evening. This system will bring
precipitation to most locations as it moves through the area. The
best precip will occur mid morning through this afternoon. Snow
levels will be low this morning, generally 2000 feet or below. They
will rise to between 3000 and 3500 feet this afternoon, except over
south-central washington where they will only rise to between 2000
and 2500 feet. Snow above these elevations will generally run
between 1 and 4 inches. The exception will be along the cascade east
slopes where snowfall will be more persistent and more intense. Thus
could see 3 to 7 inches in these areas, and will continue the
current winter weather advisories. Winds will also be an issue with
this storm. Expect locally strong winds in the grande ronde valley
and will continue the current wind advisory. Winds will also be
breezy to windy along the blue mountain foothills and over portions
of central oregon. May see very localized strong winds in the
foothills. Meanwhile gusts of up to 40 mph will be possible over
central and north-central oregon, and locally in the yakima valley.

A persistent onshore flow will keep varying chances of snow and or
rain showers going overnight tonight through Monday evening. Best
chances of showers will be near the cascade crest and over the
interior mountains. Another pacific system will spread snow and low
elevation rain into the region on Tuesday. 90
long term... Tuesday night through Saturday... Models show a
progressive mid upper level pressure pattern through the period.

A warm front moves into the region Tuesday night and Wednesday.

Snow levels rise to 4000-5000 feet during the day on Wednesday.

Then the parent mid upper level trough pushes a cold front through
the forecast area Wednesday night with the3 front moving into .

Idaho around daybreak on Thursday. Flow aloft has a strong westerly
component on Thursday, which introduces downsloping westerly winds
east of the cascades for precipitation shadowing and dry conditions
at lower elevations on Thursday. A ridge of high pressure builds
over the region on Friday for a short spell of dry conditions over
the lower columbia basin as well as the kittitas and yakima valleys
and in north central oregon, but the northwesterly flow aloft should
keep scattered orographic snow showers over the blue mountains and
the wallowa mountains. A warm front moves into the forecast area on
Saturday with attendant overrunning precipitation for a mix of snow
and rain in the lower columbia basin and snow likely in the
mountains. Polan

Aviation 18z tafs...VFR conditions will generally prevail fur the
next 24 hours. Ceilings will lower to low endVFR as a system
crosses the area later this morning into the overnight hours.

Prevailing rain and higher elevation snow will central or wa by
late morning. Migrating to eastern wa or this afternoon. Precip will
gradually taper off later this evening overnight. Winds will
increase to 12-20 kt with gusts up to 30 kt at pdt alw psc rdm bdn
this afternoon, with less wind for the other sites.

Preliminary point temps pops
Pdt 49 34 46 32 80 60 10 10
alw 51 36 47 34 80 70 20 20
psc 47 34 49 32 80 30 10 10
ykm 44 29 45 29 60 20 10 10
hri 47 34 49 32 80 50 10 10
eln 39 27 40 27 80 20 10 10
rdm 46 28 45 27 50 30 10 10
lgd 39 30 42 29 60 70 20 20
gcd 38 29 39 28 80 60 20 20
dls 46 34 47 33 70 40 30 20

Pdt watches warnings advisories
Or... Winter weather advisory until 10 pm pst this evening for orz509.

Wind advisory until 10 pm pst this evening for orz049.

Wa... Winter weather advisory until 10 pm pst this evening for waz520.

94


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
The Dalles Municipal Airport, WA33 mi21 minE 610.00 miOvercast40°F33°F77%1015.9 hPa

Wind History from DLS (wind in knots)
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Last 24hrSW43CalmN3CalmCalmW3CalmS3CalmE4CalmCalmCalmCalmE5CalmCalmCalmCalmCalmE7E9E6
1 day agoCalmNE3S3Calm4SE3CalmSE4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmSE3NE3Calm
2 days agoNW3CalmW3NW9NW15N13
G19
NW11
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W333CalmCalmCalmCalm4W4CalmSW3S5E3CalmCalmCalmN3

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

Sun -- 05:46 AM PST     0.36 feet Low Tide
Sun -- 07:42 AM PST     Sunrise
Sun -- 10:11 AM PST     Moonrise
Sun -- 10:25 AM PST     8.25 feet High Tide
Sun -- 05:01 PM PST     Sunset
Sun -- 06:05 PM PST     2.90 feet Low Tide
Sun -- 09:52 PM PST     8.33 feet High Tide
Sun -- 09:53 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
6.65.13.52.21.10.50.41.64.26.78.18.27.66.75.64.63.73.12.93.65.77.78.38

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

Sun -- 05:21 AM PST     0.36 feet Low Tide
Sun -- 07:42 AM PST     Sunrise
Sun -- 09:59 AM PST     8.25 feet High Tide
Sun -- 10:11 AM PST     Moonrise
Sun -- 05:01 PM PST     Sunset
Sun -- 05:40 PM PST     2.90 feet Low Tide
Sun -- 09:26 PM PST     8.33 feet High Tide
Sun -- 09:54 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
64.42.91.70.80.40.72.65.37.48.287.36.35.24.23.4334.46.68.28.37.7

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

GOES Local Image of PacificNorthwest    EDIT
Geos

Wind Forecast for Pendleton, OR (13,3,4,5)
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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.