Monday, September25, 2017 L-36.com


Marine Weather and Tides
Yakima, 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 6:53AMSunset 6:53PM Monday September 25, 2017 5:13 PM PDT (00:13 UTC) Moonrise 11:25AMMoonset 9:10PM Illumination 28% 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 Yakima, WA
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location: 46.61, -120.53     debug


Area Discussion for - Pendleton, OR
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Fxus66 kpdt 252212 aaa
afdpdt
area forecast discussion... Updated
national weather service pendleton or
311 pm pdt Mon sep 25 2017
updated aviation discussion

Short term Tonight through Thursday... An upper level ridge,
roughly along 134 west longitude this afternoon, will continue to
build while shifting slowly east through Tuesday. The upper ridge
axis will work into the pacific northwest Tuesday night and
Wednesday morning. This upper ridge will then continue to push east
as an upper trough begins to shift our of the gulf of alaska
Thursday. The current northwest upper level flow over the region
will become northerly tonight. A weak disturbance within the current
upper level flow will keep a few showers going over the higher
terrain into this evening. Also a few sprinkles may occur at lower
elevations into early evening. With the flow turning more northerly
and the high pressure building over the region, conditions will
become increasingly drier with decreasing cloud cover late tonight
and on Tuesday. The flow aloft will become light by Wednesday with
the ridge overhead. As such conditions will dry further and clear
conditions are expected Wednesday into Thursday. High temps will
warm a few degrees each day through this period. Low temps will
remain seasonal due to good overnight cooling resulting from the
increasingly clear skies. 90

Long term Thursday night through Monday... An upper level ridge
will move east into id Thursday. Skies will still be mostly clear
with light winds allowing strong radiational cooling. A weak front
will move through canada Friday night. Since the dynamic lift will
remain in canada the main effects will be increased cloud cover and
a slight chance for rain showers in the mountains. Current model
runs have slowed down the trough behind the front as an upper level
low forms behind the front. The slower movement behind the front is
supported by 12z ensembles but confidence remains low since there
has been no run to run continuity. I increased mountain showers
Saturday a little since there was ensemble support for current
operational model trend. Saturday night both models Sunday the ecmwf
has have ridging building offshore... But the ECMWF has another low
developing by Sunday evening while the GFS has a wave moving down
the backside of a strong ridge. I trended forecast to model blend
but don't trust any solution. High temperatures Friday will be in
the 70s and 80s. With trend toward troughing or zonal flow behind
the weak front Friday temperatures should drop back to the 60s and
70s Saturday through Tuesday. Coonfield

Aviation 00z tafs...VFR conditions will prevail through the
period. Sct to bkn mid high clouds are moving through the region.

Decreasing clouds tonight except kpdt and kalw where clouds will
linger into Tuesday morning. Winds will remain generally under 10
kts through the period. 76

Preliminary point temps pops
Pdt 49 74 48 78 10 0 0 0
alw 53 74 53 79 10 0 0 0
psc 49 77 47 81 10 0 0 0
ykm 48 78 46 82 10 0 0 0
hri 49 78 47 82 10 0 0 0
eln 49 78 46 82 10 0 0 0
rdm 38 73 39 78 10 0 0 0
lgd 42 71 39 76 10 0 0 0
gcd 45 73 44 78 10 0 0 0
dls 53 80 50 83 10 0 0 0

Pdt watches warnings advisories
Or... None.

Wa... None.

90 76 76


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Yakima Air Terminal - McAllister Field, WA3 mi21 minN 010.00 miOvercast74°F46°F37%1016.3 hPa

Wind History from YKM (wind in knots)
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Last 24hrS4SE4CalmW5W3CalmCalmCalmSW4CalmCalmW5SW3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm
1 day agoCalmCalmCalmCalmW4W4W8W6SW5W6W5W6W5W5W6W7W3Calm3CalmNE5SE54SE5
2 days agoS6S5CalmSW3CalmW5W5SW3W3NW3CalmCalmCalmCalmCalmCalmCalmCalm3S5NE3S6CalmE3

Tide / Current Tables for
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Tide / Current Tables for
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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 (20,4,5,8)
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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.