Friday, August18, 2017 L-36.com


Marine Weather and Tides
Elgin, 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 5:55AMSunset 7:58PM Thursday August 17, 2017 11:58 PM PDT (06:58 UTC) Moonrise 1:28AMMoonset 4:48PM Illumination 17% Phase: Waning Crescent; Moon at 26 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 Elgin, OR
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location: 45.61, -117.91     debug


Area Discussion for - Pendleton, OR
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Fxus66 kpdt 180237 cca
afdpdt
area forecast discussion
national weather service pendleton or
733 pm pdt Thu aug 17 2017
corrected aviation discussion

Update A broad w-nw flow will be over the pacnw through Monday.

This will keep dry weather over the region and seasonably warm
temperatures. Skies will be mostly clear... Except for some high
clouds on Sunday. High temperatures will be mostly in the 80s
each day through Monday with 70s in the mountains. On Monday
morning between 10 and 11 am in central oregon along the path of
eclipse totality... Temperatures will be in the 70s with light
winds. In the very near term for tonight... Expect clear skies and
diminishing winds. Low temperatures will be mostly in the mid 40s
to mid 50s but there will be some 30s in the mountain valleys.

A little smoke is possible in central oregon from area fires.

Winds will pick up Friday afternoon and evening cascade gaps but
should stay below advisory levels. 78

Aviation 06z tafs...VFR conditions will continue for the next 24
hours. Clear skies are expected. Winds will remain below 12 kts
at most TAF sites, but kdls will reach 10 to 20 kts with gusts to
30 kts tomorrow afternoon. Krdm, kbdn and kpdt may have gusts to
20 kts tomorrow afternoon. There may be a little smoke vcnty kbdn
and krdm but for know will keep vsbys AOA 7sm. 78

Prev discussion issued 353 pm pdt Thu aug 17 2017
short term... Tonight through Sunday night. Clear skies over the
forecast area this afternoon. Expect this to continue through the
evening and overnight. Low temperatures the past several nights
have shown a wide range due to radiational cooling and terrain and
this will be the case tonight. Lows will range from the 40s through
the 50s into the lower 60s. The upper level ridge over the pacific
northwest gets flattened some by an upper trough moving across
southern bc. Effects will be minimal with a dry westerly flow
continuing and mostly sunny skies. Westerly surface winds will
likely be a little stronger. For Saturday dry westerly flow and
mostly sunny once again. Locally breezy surface winds with strong
surface high pressure remaining centered offshore. High temps will
be down several degrees. On Sunday an upper low sets up over central
california. Models have been consistent keeping this feature well to
our south. Therefore we stay in a westerly flow aloft with continued
mostly sunny skies. 94
long term... Monday through Thursday... Models are in good agreement
in having a ridge over the pacific northwest on Monday. There will
also be a weak low off the southern california coast that sends some
monsoon moisture north from the desert southwest but all models keep
the moisture south of the oregon nevada border. That should ensure
mostly clear skies for the solar eclipse Monday morning. Mostly
clear skies with light winds and no precipitation will continue
through Monday night and Tuesday morning. By Tuesday afternoon, the
gfs does bring moisture in from the south and has showers and
thunderstorms over central oregon and the eastern oregon mountains.

The ECMWF and canadian keep the moisture just along our southern
border with no precipitation. Have kept the current slight chance of
showers and thunderstorms in central oregon and the eastern oregon
mountains in case the GFS is right. Have also kept a slight chance
of showers in that area overnight. On Wednesday a trough approaches
the area and the ridge gets shoved off to the east. This develops a
southwest flow over the area and this will be favorable for
thunderstorms so have kept a slight chance of showers and
thunderstorms over central oregon and the eastern oregon mountains
for another day. By Thursday, models have us under a trough but
differ greatly as to the strength and orientation of the trough. The
ecmwf has a deep trough with showers and thunderstorms over the
entire area. The GFS trough is much shallower with just a few
showers and thunderstorms over the eastern oregon mountains. I have
a slight chance of showers and thunderstorms mainly over the blue
mountains and wallowa county for now until the models come into
better agreement. Under the ridge Monday, temperatures will be in
the 80s and lower 90s, then warm to the mid 80s to mid 90s on
Tuesday. As the trough moves overhead, temperatures will drop a few
degrees each day, ending up in the upper 70s and 80s by Thursday.

Perry
fire weather... A dry cold front will cross the area Friday,
resulting in a tightening pressure gradient. W NW winds will
increase across the cascade gaps, with breezy locally windy
conditions across the columbia gorge and western portions of the
columbia basin. Think the highest winds will occur in he early
evening, after rhs begin to recover, limiting red flag coverage
and duration. Thus, will not issue warnings, highlighting the
risk in the fire weather planning forecast.

Preliminary point temps pops
Pdt 88 56 90 60 0 0 0 0
alw 90 61 91 63 0 0 0 0
psc 91 56 93 57 0 0 0 0
ykm 90 59 91 59 0 0 0 0
hri 90 57 93 59 0 0 0 0
eln 88 60 86 59 0 0 0 0
rdm 88 46 90 49 0 0 0 0
lgd 87 44 89 54 0 0 0 0
gcd 88 52 90 51 0 0 0 0
dls 89 62 89 62 0 0 0 0

Pdt watches warnings advisories
Or... None.

Wa... None.

78 78


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure

Wind History from LGD (wind in knots)
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Last 24hr--CalmNE3CalmN3CalmN7N8N7NW4NW6NW9W4E4NW5SE5CalmCalmSE5CalmCalmCalmCalmCalm
1 day agoCalmCalmCalmNW3NW6NW6N7N9N8NW4N6N6N10N9CalmCalmW3CalmCalmCalmCalmCalmS3NW3
2 days agoNW3NW7N7NE8N7N9N12NW9NW10N5N5NW7NW9N12NW6CalmW3NW11SE3CalmS3CalmCalmCalm

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.