Tuesday, January16, 2018 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 7:38AMSunset 4:45PM Tuesday January 16, 2018 10:56 AM PST (18:56 UTC) Moonrise 7:19AMMoonset 4:40PM Illumination 0% Phase: New Moon; Moon at 29 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 161718 aaa
afdpdt
area forecast discussion
national weather service pendleton or
930 am pst Tue jan 16 2018
updated aviation discussion

Update A rather fast moving shortwave trough and associated
weak surface cold front is crossing eastern or wa this morning.

Widespread rain from the columbia basin eastward this morning will
taper off substantially by this afternoon, with some residual rain
and snow across far eastern or into early afternoon. Have updated
the forecast for these trends. Low clouds this morning across the
lower elevations will scattered out in the wake of the front this
afternoon. Highs today will range from the upper 40s lower 50s for
the lower elevations, with upper 30s lower 40s for the mountains.

Aviation 18z tafs... Showers will linger over the mountain
through this evening, with mainlyVFR conditions at the tafs sites
with sct-bkn clouds 030-050 kft. Some fog and low clouds are
expected to push back in from the north tonight, mainly affecting
kykm and kpsc with some patchy fog and possible MVFR with cigs. A
warm front will be moving into the area on Wednesday morning with
some light rain possible at kdls after 15z then pushing north
through the day. 93

Prev discussion issued 401 am pst Tue jan 16 2018
short term... Today through Thursday... The upper ridge that has been
over the region will weaken and move east today as a weather system
moves into the area. This system will bring some rain and higher
mountain snow to the forecast area today. It is a fairly fast moving
system, so the precipitation should be mostly done by this evening.

The moisture content is fairly high though and so all areas will
have at least chance to likely pops today. There is no need for any
winter weather highlights as snow levels are high and only the
highest mountains will receive snow. There will be a temporary break
tonight and early Wednesday morning before the next system moves
into the region by Wednesday afternoon. This system will bring
another round of precipitation to the area. Snow levels will be a
little lower with this next system and will need to keep ALERT for
possible winter weather highlights for the mountains. For now will
not issue anything due to uncertainty and it being too far into the
future. Conditions will remain unsettled as yet another weather
system moves in on Thursday with more rain and mountain snow. It
will be breezy to windy at times with each system, especially on the
ridge tops. Though winds are not expected to be strong enough for
any wind advisories. Temperatures will be and remain above normal
through most of the short term period. 88
long term... Thursday night through Tuesday... Unsettled weather will
continue through much of the long term period. Thursday night and
Friday an upper trough will be located off the pacific northwest
coast. A front will be crossing the area Thursday evening with a
chance of rain and mountain snow above 3500 feet before tapering off
to just a chance of snow in the mountains overnight. On Friday, the
upper low and trough will be weakening as it comes ashore. There
will once again be a chance of light rain showers in the lower
elevations with the columbia basin dry while the mountains will have
a chance of light snow showers. Weak ridging will try to build
Friday night as another upper low approaches the british
columbia washington coast. There will continue to be a slight chance
of rain showers in the lower elevations and a chance of mountain
snow showers above 2500 feet. A weak disturbance will move through
the ridge Saturday and Saturday night and this will continue the
showery conditions with snow levels remaining around 2000-2500 feet.

Models are in good agreement in having the upper low move ashore
with a frontal system and slowly cross the area Sunday through
Monday night. Like the previous trough, it will weaken considerably
as it crosses the area. Sunday will have a chance of rain and
mountain snow but as the system and trough weakens, Sunday night
through Monday night will have a chance of lower elevation rain and
a continuing chance of mountain snow. Snow levels will remain around
2500 feet with this system. Models show a break Tuesday as ridge
moves over the area. The area will be dry aside from a slight chance
of some light mountain snow showers. Temperatures will be in the mid
30s to mid 40s Friday through Sunday then drop a couple of degrees
to mid 30s to lower 40s Monday and Tuesday. Perry

Preliminary point temps pops
Pdt 48 35 49 40 100 10 10 70
alw 49 37 50 41 100 10 10 70
psc 47 35 45 39 100 10 10 60
ykm 46 33 42 35 90 10 30 60
hri 50 35 48 39 100 10 10 70
eln 43 32 39 32 90 10 30 70
rdm 49 31 51 32 50 10 10 60
lgd 46 34 45 39 90 10 10 70
gcd 49 33 48 39 90 10 10 60
dls 52 38 47 38 70 10 30 70

Pdt watches warnings advisories
Or... None.

Wa... None.

80 93 83


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Yakima Air Terminal - McAllister Field, WA3 mi63 minESE 49.00 miOvercast42°F39°F89%1024.3 hPa

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Last 24hrN6E4CalmCalmE4CalmCalmSW5SW4NW6W4N5W6W4CalmCalmCalmCalmCalmS5CalmS5CalmSE4
1 day agoNW7N8N8N9N6N9NW7N7NW5N7NW7NW5NW4W4W5W5W3W3CalmN6N4NW6E4Calm
2 days agoCalmNW33NW4CalmE3CalmCalmCalmW6W7W7W7W8W8W10W8W7W6W5W5W4W6N6

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 (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.