Monday, August21, 2017 L-36.com


Marine Weather and Tides
Milton-Freewater, OR

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 5:59AMSunset 7:53PM Sunday August 20, 2017 9:45 PM PDT (04:45 UTC) Moonrise 4:38AMMoonset 7:23PM Illumination 1% Phase: Waning Crescent; 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 Milton-Freewater, OR
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location: 45.94, -118.37     debug


Area Discussion for - Pendleton, OR
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Fxus66 kpdt 210253
afdpdt
area forecast discussion
national weather service pendleton or
753 pm pdt Sun aug 20 2017

Short term Tonight and Monday... A weak shortwave passing by is
pushing some mid and high level clouds across the forecast area.

These clouds will exit to the southeast overnight leaving clear
skies in place for the eclipse on Monday. An upper level ridge of
high pressure off the coast will push inland on Monday helping to
boost temperatures by 5 to 10 degrees Monday. Only made some minor
changes to the evening forecast update.

Prev discussion issued 305 pm pdt Sun aug 20 2017
short term... Tonight through Wednesday afternoon... A weak mid upper
level shortwave continues moving across the region this afternoon
with attendant high clouds. This system will move east and exit the
forecast area this evening resulting in clearing skies by late this
evening. A mid upper level ridge of high pressure upstream near 135w
will move inland this evening. The ridge moves over the forecast
area on Monday for clear skies for the eclipse.

The ecmwf, canadian and GFS models all show a mid upper level low
just offshore of the southern california coast Monday, which
captures mid level monsoon moisture and wraps it around to the
northern and northeastern flanks of the low Monday night. The low
then transports the monsoon moisture northward Tuesday morning into
northern california and the great basin. By Tuesday morning, the
ridge over the pacific northwest moves to the rockies thus yielding
a flow aloft that backs to the southwest during the day on Tuesday.

This sets the stage for the monsoon moisture to enter southern
oregon late Tuesday afternoon. Elevated instability associated with
the moisture will bring a slight chance of late afternoon and
evening thunderstorms to central oregon. The monsoon moisture then
moves northeast across the blue mountains Tuesday night and
Wednesday for a slight chance of nocturnal thunderstorms in ne
oregon with a chance of showers and a slight chance of thunderstorms
continuing through Wednesday afternoon. At this point conditions do
not appear to support any threat of severe thunderstorms on
Tuesday and Wednesday. Polan
long term... Wednesday night through Sunday... Wednesday evening
there will be an upper level ridge in mt, a cutoff low off central
ca coast, and a strong low in the gulf of alaska. These systems will
combine to form a southwest flow over wa and or with instability and
moisture advecting into eastern or, triggering showers and isolated
thunderstorms from central to northeast or. A thermal trough will
enhance pressure gradients across the cascades and breezy conditions
in the eastern columbia river gorge. As the low in alaska shifts
southeast to vancouver island by Thursday morning then east across
southern canada Thursday the associated cold front will push the
moisture and instability in or east and dry west to northwest flow
will move into eastern wa and or with clearing skies. There could be
a lingering showers or thunderstorms over wallowa county Thursday
afternoon. Strong cold air advection, tightening pressure gradients
and increasing winds aloft will develop behind the front. The
downslope winds will dry out the lower atmosphere with patchy
blowing dust developing in the columbia basin. The winds and low
relative humidity will cause fire weather concerns. Temperatures
will be much cooler Thursday afternoon... With highs only reaching
the upper 70s to mid-80s... Except 70s mountains. Radiational cooling
from clear skies and light winds will keep Friday and Saturday night
cool. An upper level ridge will move across wa and or Friday through
Sunday. The dry northwest flow ahead of the ridge will keep eastern
wa and or dry with a warming trend through the weekend. Coonfield
aviation... 0z tafs...VFR conditions are forecast to prevail at all
taf sites over the next 24 hours. Sct to bkn high level clouds are
expected to continue through the early evening hours. These clouds
will move southeast out of the area after 21 06z. Winds will be
light through the period. 76

Preliminary point temps pops
Pdt 55 90 59 96 0 0 0 0
alw 60 92 64 97 0 0 0 0
psc 54 93 58 97 0 0 0 0
ykm 56 93 61 97 0 0 0 0
hri 55 92 58 98 0 0 0 0
eln 60 92 58 96 0 0 0 0
rdm 46 91 50 95 0 0 0 10
lgd 47 88 50 96 0 0 0 10
gcd 52 89 57 96 0 0 0 10
dls 62 93 65 97 0 0 0 0

Pdt watches warnings advisories
Or... None.

Wa... None.

91 91 91


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Walla Walla Regional Airport, WA11 mi53 minE 510.00 miFair70°F45°F41%1015.3 hPa

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Last 24hrSE7E6E7E7E4SE7SE5SE4SE3E3CalmS35SW6W7NW7--W7SW3SW7W6W3W3E5
1 day agoSW11SW11W14S5S7SE8S8S11S9S10S13SW8SW10S9SW8W6CalmNW4S4NW63W4SW4SE7
2 days agoSE6SE7SE8S7S5S5SE5S8S9S7SW10SW10S10SW11SW9W9SW8SW13
G20
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G20
SW8SW6SE5S12

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 (0,6,7,8)
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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.