Saturday, August19, 2017 L-36.com


Marine Weather and Tides
Odell, 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 6:15AMSunset 8:10PM Saturday August 19, 2017 4:00 AM PDT (11:00 UTC) Moonrise 2:43AMMoonset 5:52PM Illumination 8% Phase: Waning Crescent; Moon at 27 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 Odell, OR
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location: 45.67, -121.54     debug


Area Discussion for - Portland, OR
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Fxus66 kpqr 191041
afdpqr
area forecast discussion
national weather service portland or
324 am pdt Sat aug 19 2017

Synopsis Onshore flow will produce seasonal temperatures and
varying degrees of morning clouds and afternoon sunshine through
midweek. A weak storm system could bring a few light showers later
next week.

Short term Today through Tuesday... Water vapor satellite imagery
reveals a broad, but shallow shortwave trough sliding eastward
across the pacific northwest. This upper level shortwave trough
helped to push the remnants of a weak low level front into the
region. Coupled with radiational cooling, clouds are currently
expanding along the foothills of the cascades and back building into
portions of the willamette and lower columbia river valleys early
this morning. Given ceilings, clouds will be somewhat slow to clear
today with high temperatures likely only topping out a couple
degrees below averages for the date. Not expecting Sunday to be too
much different aside from fewer morning clouds and afternoon
temperatures should warm a couple degrees over Saturday.

Our attention then turns to the Monday eclipse cloud forecast.

Shortwave ridging will shift over the pacific northwest late Sunday
and early Monday. Models also suggest a weak shortwave trough will
slide southeastward across british columbia into the northern rocky
mountain states Sunday evening. Despite this weak shortwave trough
temporarily subduing the building heights, 500mb heights should
ultimately rise from ~5820m Sunday to ~5880m Monday. This seems to
suggest clouds should be fairly limited across the cwa, and
primarily confined to a shallow marine layer.

Models are in good agreement surface high pressure near 1026mb will
be centered near 40n 140w Monday morning with the surface ridge axis
extending northeastward towards vancouver island. This will place our
region in a north to northwesterly low level flow pattern that
typically produces some morning cloud cover along our north coast and
lower columbia river valley (perhaps as far as the pdx metro). A
modest thermal low pressure will develop over the northern
california and southern oregon coast during this timeframe, which
may help to aid in a slight offshore component to the surface-925mb
winds along the central oregon coast. This would likely keep marine
clouds just offshore for places like florence, newport, and lincoln
city. However, the ridge axis won't be as west to east oriented as
it was this morning, which leads to less confidence these winds will
materialize. As a result, kept the inherited ~50% sky cover forecast
for the central oregon coast given the uncertainty. Note, there
could be some patchy valley fog in the coast range even if the
marine clouds stay offshore Monday morning. As a result, locations
above ~500-1000' are a safer bet for an unobstructed view of the sky
than nearby adjacent valley bottoms in the oregon coast range.

It should be noted that Monday and Tuesday look to be the warmest
days in the next week with high temperatures climbing into the mid
to upper 80s in the willamette valley. Given the ongoing fires in
the cascades, particularly across eastern lane and linn counties,
expanded the mention of smoke through the short term as these fires
will likely only become more active as temperatures warm Monday and
Tuesday. Neuman

Long term Tuesday night through Friday... Models are in decent
agreement a shortwave trough will approach the region Wednesday and
push a weak front into the region late Wednesday or early Thursday.

Given the operational models and many of their ensembles suggest
some light rain is possible across a good portion of the region,
expanded mentionable pops during this time frame. This storm system
should also act to cool temperatures back below average late in the
week. Neuman

Aviation Trailing end of a weak front passing north of the
area has brought some areas of inland stratus while it is rather
patchy along the coast. It's rather hit or miss for the CIGS to
drop into MVFR around 015 while it's a better bet to see it at or
above 030. Tops on average are looking to be about 045-050 msl.

Do expect the 030 stratus to push sough along the cascades and
reach keug in the next couple hours. Onshore flow will reinforce
the layer for a few hours, but a slowly increasing upper ridge,
winds veering to northerly flow, and sunlight will help mix out
the clouds this morning. Coastal areas will see some form of
stratus returning overnight with low end MVFR to ifr likely in
place after 20 09z tonight. Winds will become gusty of 20-25 kts
at konp and keug as surface high pressure builds north and
tightens the pressure gradients against the thermal low pressure
over SW oregon NRN california.

Kpdx and approaches... Stratus hovering around 030 should continue
to increase over the terminal area this morning but has been
patchy thus far. Feel rwy 28 approaches will continue seeing
terrain obscuration through roughly 18z. There are hints of a
015-020 deck returning after 20 09z tonight and will wait for
additional confidence before committing at this time. Jbonk

Marine High pressure at the surface and aloft will pair with
surface thermal low pressure over the or ca coast and across
eastern oregon. Variations of northerly surface flow will
dominate the pattern for the next several days. Will keep the sca
for winds through tonight across the central oregon coastal
waters but acknowledge the primary threat occurs during the late
afternoon and evening hours. Also acknowledge the primary winds
of concern will likely remain from about newport and south. Do
expect additional scas for winds to be issued for the following
few days as there will be little pattern change, only variations
in the marginal strength of the winds.

Seas have remained and are expected to remain 4 to 6 ft with
periods at 9 to 10 seconds. Choppy conditions to be sure, but not
quite high enough to meet SCA for seas criteria of 7 ft and
square. Jbonk

Pqr watches warnings advisories
Or... None.

Wa... None.

Pz... Small craft advisory for winds until 5 am pdt Sunday for
coastal waters from cascade head or to florence or out 60
nm.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LOPW1 - 9440422 - Longview, WA 81 mi43 min 71°F1022 hPa

Wind History for Longview, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
The Dalles Municipal Airport, WA21 mi68 minW 13 G 2110.00 miFair68°F55°F63%1017 hPa

Wind History from CZK (wind in knots)
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Last 24hr24------------------------SW12
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1 day ago53------------------------322SW632SE2E21S2
2 days ago----------------------------1214334434

Tide / Current Tables for Ellsworth, Washington - IGNORE HEIGHTS
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Ellsworth
Click for MapNote: The Columbia River is subject to annual freshets. Short range predictions are available at local river forecast centers. The data for stations above Harrington Point apply only during low river stages. There is a tidal influence along most of the

Sat -- 01:20 AM PDT     2.23 feet Low Tide
Sat -- 03:48 AM PDT     Moonrise
Sat -- 05:29 AM PDT     8.65 feet High Tide
Sat -- 06:15 AM PDT     Sunrise
Sat -- 02:31 PM PDT     -1.11 feet Low Tide
Sat -- 06:56 PM PDT     Moonset
Sat -- 06:58 PM PDT     7.13 feet High Tide
Sat -- 08:10 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.62.32.64.56.88.48.67.96.85.33.72.10.7-0.4-1-0.90.93.66.17.16.86.15.24.1

Tide / Current Tables for Vancouver, Washington - IGNORE HEIGHTS
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Vancouver
Click for MapNote: The Columbia River is subject to annual freshets. Short range predictions are available at local river forecast centers. The data for stations above Harrington Point apply only during low river stages. There is a tidal influence along most of the

Sat -- 12:55 AM PDT     2.23 feet Low Tide
Sat -- 03:48 AM PDT     Moonrise
Sat -- 05:03 AM PDT     8.65 feet High Tide
Sat -- 06:16 AM PDT     Sunrise
Sat -- 02:06 PM PDT     -1.11 feet Low Tide
Sat -- 06:32 PM PDT     7.13 feet High Tide
Sat -- 06:56 PM PDT     Moonset
Sat -- 08:11 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.42.23.35.57.68.68.47.56.24.631.50.2-0.7-1.1-0.324.86.87.16.65.74.73.7

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 Portland, OR (7,2,3,4)
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Ground Weather Radar Station Portland, 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.