Thursday, March30, 2017 L-36.com


Marine Weather and Tides
Yakima, 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 6:42AMSunset 7:29PM Wednesday March 29, 2017 11:36 PM PDT (06:36 UTC) Moonrise 6:59AMMoonset 8:40PM Illumination 8% 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 Yakima, WA
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location: 46.61, -120.53     debug


Area Discussion for - Pendleton, OR
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Fxus66 kpdt 300527
afdpdt
area forecast discussion
national weather service pendleton or
1030 pm pdt Wed mar 29 2017
updated aviation discussion

Update Updates to the forecast through Thursday afternoon were
mainly to lower pops in some zones and tone down QPF amounts for
most of the area. The warm front that brought widespread rain
earlier today has moved out of region... And satellite and
surrounding WSR-88D are showing clearing behind the system. A
weak cold front will track across eastern oregon tonight. Earlier
model runs appear to have been too high on the precipitation... As
wsr-88ds west of the cascades are only showing scattered showers
at this time unlike the widespread precipitation the models were
advertising. Light to moderate precipitation early Thursday
morning will mainly be over central and northeast oregon.

Precipitation amounts through 18z will range from a trace to a
quarter of an inch. Snow levels will be around 4000 feet... And
some of the higher mountains and valleys will get about 1-2
inches of new snow.

After the passage of the upper level trough on Thursday... High
pressure building at the surface and aloft will result in breezy
to windy conditions. The strongest winds will be in the eastern
columbia river gorge and the kittitas valley were sustained winds
will be 25-30 mph... Possibly stronger in the afternoon and
evening. Confidence is not high that winds will meet advisory
criteria for more than an hour or two so will hold off on any wind
advisories for now. Wister

Aviation 06z tafs. Conditions will predominantly beVFR for the
next 24 hours... Although krdm and kbdn may experience brief MVFR
tonight due to light rain. The chance of precipitation at the
remainder of the TAF sites is minimal but there will be showers in
the vicinity of kpdt and kalw. The main aviation concern will be
the increasing westerly surface winds on Thursday... 10-20 knots
gusting to 30 knots. Kdls may observe NW winds 25g35 knots in the
afternoon.

Hydrology Rainfall amounts varied significantly across the
region over the past 24 hours... And the northern blue mountains
received significantly more than most of the forecast area with
amounts of 0.75 to over one inch in a few locations. The umatilla
river and walla walla rivers are responding with levels expected
to be near bankfull on Thursday. The grande ronde river at troy
is showing sharp rises and is forecast to rise to flood stage
Thursday morning. A flood warning is in effect for the grande
ronde river at troy as well as the john day river at service
creek. The john day river is not showing sharp rises... And there
is question on whether it will get above flood stage. Will keep
the flood warning for now and monitor precipitation amounts
tonight and Thursday. Wister

Preliminary point temps/pops
Pdt 40 52 33 54 / 40 40 20 0
alw 43 54 38 54 / 40 30 20 0
psc 43 60 34 60 / 10 20 10 0
ykm 39 62 32 62 / 10 10 0 0
hri 41 59 34 59 / 20 20 20 0
eln 38 56 33 59 / 10 10 0 0
rdm 35 47 20 52 / 40 30 10 0
lgd 39 49 32 51 / 80 60 20 10
gcd 36 48 30 54 / 90 70 20 0
dls 43 60 37 62 / 20 20 0 0

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

Wa... None.

85/85


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Yakima, Yakima Air Terminal, WA3 mi43 minN 010.00 miFair48°F36°F63%1012.8 hPa

Wind History from YKM (wind in knots)
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Last 24hrCalmS11
G21
3S5E5CalmE5CalmNE3CalmS3SW3S7S12W4N3S7SW20
G29
SW18
G25
W6W6W9SW5Calm
1 day agoN4S3W3NW6W4CalmCalmSW3CalmCalmCalmW5SW11
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SW10SW10SW8N8--SW12
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SW6NE7CalmNW4
2 days agoSW4CalmW4W4CalmW4W4CalmCalmN34CalmCalmCalmCalmCalmNW16
G21
NW17W11SW7W7SW3CalmCalm

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 (2,6,7,8)
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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.