Friday, May26, 2017 L-36.com


Marine Weather and Tides
Lake Shore, WA

Version 3.4
What's New / NOTES
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 5:25AMSunset 8:49PM Friday May 26, 2017 7:29 PM PDT (02:29 UTC) Moonrise 5:39AMMoonset 8:55PM Illumination 2% Phase: Waxing Crescent; Moon at 1 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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PZZ210 Columbia River Bar- 248 Pm Pdt Fri May 26 2017
.small craft advisory for rough columbia river bar in effect from late tonight through Saturday morning...
In the main channel..Combined seas around 6 to 7 ft subsiding to near 5 ft tonight. However...seas temporarily build to 8 ft with breakers possible during the ebb around 615 pm this evening...and to 9 ft with breakers during the very strong ebb around 630 am Sat morning.
PZZ200 248 Pm Pdt Fri May 26 2017
Synopsis for southern washington and northern oregon coast.. High pres will remain over the coastal waters with low pres inland through early next week. A weather system is possible around the middle to latter part of next week.

7 Day Forecast for Marine Location Near Lake Shore, WA
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location: 45.65, -122.77     debug


Area Discussion for - Portland, OR
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Fxus66 kpqr 262124
afdpqr
area forecast discussion
national weather service portland or
225 pm pdt Fri may 26 2017

Synopsis An upper level ridge of high pressure will maintain it's
presence over the region through the memorial day weekend. Afternoon
high temperatures will remain well above normal. The ridge of high
pressure will shift eastward into the northern rockies early next
week as a weather disturbance approaches the area. Temperatures
trend gradually cooler with a return of rain chances during the
second half of next week as a disturbance tracks across the pacific
northwest.

Short term Today through Monday... An upper level ridge of high
pressure will shift inland tonight and take up residence over the
region through the memorial day weekend. Inland temperatures will
run 15 to 20 degrees above normal this weekend with highs in the 80s
to near 90. Coastal temperatures will also be quite pleasant with
highs in the 60s to lower 70s. Models continue to show a southerly
wind reversal along the southern coast tonight that will bring a
surge of marine stratus northward. This will keep Saturday's high
temperatures along the central coast in the 60s, which is near
normal. The north coast will be a little warmer with temperatures in
the upper 60s to lower 70s.

The ridge of high pressure begins to shift eastward on Monday as a
weak disturbance approaches the coast. This will bring southerly flow
and a little moisture transport to the cascades. This combined with
some instability will bring a threat of thunderstorms to the cascades
Monday evening. Tw

Long term Monday night through Friday. Cooler conditions as
heights lower by early Tuesday as the upper ridge shifts east of the
rockies and an upper trough approaches the pacific northwest. With
south to southwest flow aloft over the region, continue to include a
small chance of thunderstorms over the higher cascade elevations,
primarily near the crest. While some differences in models with the
timing of various shortwave impulses moving through the base of the
trough, overall do see better agreement among the forecast models
for the overall pattern. Better chance for widespread showers, and
perhaps even some thunderstorms, Wednesday as the upper trough axis
passes across the region. Temperatures will trend cooler but still
near or slightly above seasonal norms by the end of the week. Cullen

Aviation Vfr conditions through the day today. Some ifr
stratus possible along the coast again tomorrow morning.

Kpdx and approaches...VFR today and tonight. Bentley

Marine Light winds will continue through at least the middle
of next week. There is a slight chance of winds above 20 kts
several times next week, but likelihood is low.

Seas have finally settled in the 7 to 8 foot range and will
remain there through next week. We are still in a very strong ebb
which requires a small craft advisory for rough bar, but we have
hit the peak and ebbs will be getting slowly weaker through the
weekend. Bentley

Pqr watches warnings advisories
Or... None.

Wa... None.

Pz... Small craft advisory for rough columbia river bar from 4 am to
9 am pdt Saturday.

Pqr watches warnings advisories
Or... None.

Wa... None.

Pz... Small craft advisory for rough columbia river bar from 4 am to
9 am pdt Saturday.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LOPW1 - 9440422 - Longview, WA 33 mi41 min 57°F1013.7 hPa
TLBO3 - 9437540 - Garibaldi, Tillamook Bay, OR 61 mi41 min 58°F1014.8 hPa
ASTO3 - 9439040 - Astoria, OR 65 mi41 min NNE 1 G 1.9 70°F 59°F1014.6 hPa

Wind History for Longview, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Pearson Airfield, WA6 mi36 minNNW 610.00 miFair83°F45°F26%1012.5 hPa
Portland, Portland International Airport, OR9 mi36 minVar 410.00 miA Few Clouds82°F42°F24%1012.5 hPa
Scappoose, Scappoose Industrial Airpark, OR10 mi36 minN 810.00 miFair81°F45°F28%1012.5 hPa
Portland, Portland-Hillsboro Airport, OR12 mi36 minNE 510.00 miFair81°F48°F32%1012.6 hPa
Portland, Portland-Troutdale Airport, OR21 mi36 minNNW 410.00 miFair83°F45°F26%1012.3 hPa

Wind History from VUO (wind in knots)
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Last 24hrNW5NW5NW8NW4NW5N4N4CalmCalmCalmCalmCalmCalmCalmW6SW5W7W4W7W7NW9NW8NW7NW6
1 day agoNW9
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NW7NW4CalmCalmCalmCalmCalmCalmNW5N53N33W3W5E5--W12
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2 days agoNW10
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NW9N5N3NW6CalmW3W4CalmW6NW5W5W5W6SW5W55NW8
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Tide / Current Tables for Kelley Point, Oregon - IGNORE HEIGHTS
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Kelley Point
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

Fri -- 03:11 AM PDT     1.84 feet Low Tide
Fri -- 05:28 AM PDT     Sunrise
Fri -- 06:39 AM PDT     Moonrise
Fri -- 07:17 AM PDT     9.89 feet High Tide
Fri -- 04:09 PM PDT     -1.68 feet Low Tide
Fri -- 08:41 PM PDT     7.96 feet High Tide
Fri -- 08:47 PM PDT     Sunset
Fri -- 09:55 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.132.21.82.65.18.19.89.78.87.25.33.31.4-0.1-1.2-1.7-0.81.95.17.47.97.46.5

Tide / Current Tables for Knapp Landing, Washington - IGNORE HEIGHTS
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Knapp Landing
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

Fri -- 02:23 AM PDT     1.84 feet Low Tide
Fri -- 05:28 AM PDT     Sunrise
Fri -- 06:17 AM PDT     9.89 feet High Tide
Fri -- 06:39 AM PDT     Moonrise
Fri -- 03:21 PM PDT     -1.68 feet Low Tide
Fri -- 07:41 PM PDT     7.96 feet High Tide
Fri -- 08:48 PM PDT     Sunset
Fri -- 09:55 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.12.31.92.34.87.99.89.78.87.35.53.51.70.1-1-1.6-1.11.54.87.47.97.56.55.4

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 (22,6,7,8)
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Ground Weather Radar Station Portland, 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.