Friday, November16, 2018 L-36.com


Marine Weather and Tides
Milton-Freewater, OR

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:55AMSunset 4:21PM Friday November 16, 2018 8:33 AM PST (16:33 UTC) Moonrise 2:44PMMoonset 12:31AM Illumination 62% Phase: Waxing Gibbous; Moon at 9 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 Milton-Freewater, OR
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location: 45.94, -118.37     debug


Area Discussion for - Pendleton, OR
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Fxus66 kpdt 161033
afdpdt
area forecast discussion
national weather service pendleton or
233 am pst Fri nov 16 2018

Short term Today through Sunday night... A weak weather
disturbance will move southeast today in a northwest flow aloft.

This system has limited amounts of moisture with it, but there
should be some light rain and high elevation (above pass level) snow
over the northern blue mountains and the wallowa mountains today,
especially this morning. This system will gradually move out of the
area tonight with high pressure aloft building in behind it for the
remainder of the short term forecast period. As the ridge builds
into the region there will be an increase in subsidence and
strengthening of inversions in the lower valleys again. This will
result in increasing patchy fog and low clouds which will become
more widespread with time. Temperatures in the valleys will be below
freezing, especially at night so there will be some freezing fog.

The fog droplets will freeze to surfaces making them slick. Diurnal
temperature changes under the areas of low clouds and fog will be
little, but in the mountains at elevations above the inversions the
diurnal temperature changes will be much greater. Overall highs will
be mainly in the 40s to near 50 in these areas, but temperatures
will have a tough time rising above the 30s in the valleys that are
under the inversions. Winds will be light through the short term
period. An air stagnation advisory remains in effect this morning
for the yakima valley due to poor mixing out of pollutants in the
lower valleys. This may be extended, and possibly expanded, this
morning per coordination with local air quality officials. 88

Long term Monday through Friday... Long term period begins with
good model agreement between operational and ensemble guidance with
persistent upper level ridging over the pacific NW continuing
through at least Tuesday and likely into Wednesday. While dry
weather and light winds expected, low stratus fog freezing fog is
expected to continue in the lower columbia basin and other
valleys basins due to the strengthening low level inversion and air
stagnation. Like early this past week, diurnal temperature ranges in
foggy areas, especially the columbia basin, will see spreads
generally less than 10 degrees with highs likely only in the 30s.

Areas outside the fog - central oregon and mountains will see much
larger diurnal temp swings and highs in the 40s to lower 50s. By
late next week beginning to see the breakdown of and eastward shift
of the ridge as a series of short waves is expected to bring a good
chance of rain and mountain snow to the pacific nw. Models coming
into better agreement with the approach of the first quick-moving
open shortwave and cold front pushing through around Wednesday night
into thanksgiving. Best chances for precip would be in the mountains
as the basin looks to remain fairly shadowed under the westerly
flow. The arrival of the next system won't be far behind on Friday.

This system looks to have a better plume of pacific moisture and
better upper-level dynamics and could bring a good chance of
rain mountain snow for the region, but location and timing are
inconsistent between the models this far out. Snow levels will hover
around 3800 to 5000 feet range for the period, so little snow
impacts for the major corridors. Expect an uptick in winds beginning
Wednesday ahead of the first wave which will likely help clear up
some of the persistent stratus and fog. Thursday into Friday will
likely be windier and any remaining fog and stratus will be
extinguished. The active pattern is expected to continue into the
weekend.

Aviation 12z tafs...VFR conditions expected but with some
increasing mid level clouds with some clearing taking place late
today. Could be some showers in the vicinity of psc, kpdt and kalw
as well today. Some patchy fog will be possible at kykm and kpsc
through this morning. Winds will become northerly today but remain
less than 10 kts.

Preliminary point temps pops
Pdt 46 30 39 25 20 10 0 0
alw 46 29 40 27 20 10 0 0
psc 46 26 43 22 10 0 0 0
ykm 47 26 44 21 10 10 0 0
hri 48 28 42 24 10 10 0 0
eln 51 26 45 22 10 10 0 0
rdm 56 28 44 17 0 10 10 0
lgd 49 29 43 24 20 20 0 0
gcd 52 30 47 25 10 10 0 0
dls 53 31 47 28 10 10 0 0

Pdt watches warnings advisories
Or... None.

Wa... Air stagnation advisory until 1 pm pst this afternoon for waz027.

88 84 84


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Walla Walla Regional Airport, WA11 mi40 minSSW 510.00 miOvercast46°F37°F73%1022.7 hPa

Wind History from ALW (wind in knots)
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Last 24hrS4Calm3W3S5NW4NW3CalmCalmE5E6SE4SW6SE6S7S4S8S7S8S8SW7W3S4S5
1 day agoCalmSE43CalmCalmS6NW9CalmE3SE4S6S5SW7SW6SE5W5S7E5W4S5CalmS3S5S3
2 days agoCalmS4SW4CalmE3S4SW3CalmCalmN5N3CalmS4SE4W4CalmCalmCalmCalmNW3CalmCalmCalmNW4

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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wmap_P
GOES Local Image of PacificNorthwest    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Pendleton, OR (11,2,3,4)
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Ground Weather Radar Station Pendleton, OR
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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.