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Marine Weather and Tides Lake Shore, WA Version 3.4

NOTICE 7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports. 6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

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Sunrise 6:16AM

Sunset 8:10PM

Wednesday August 21, 2019 5:54 PM PDT (00:54 UTC)

Moonrise 10:11PM

Moonset 11:17AM

Illumination 61%

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.

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7 Day Forecast for Marine Location Near Lake Shore, WA

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Area Discussion for - Portland, OR

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Fxus66 kpqr 212143 afdpqr area forecast discussion national service portland or 243 pm pdt Wed aug 21 2019 Synopsis Expect near average temperatures and a mixture of clouds and sunshine through the weekend before hotter weather returns next week. Short term This afternoon through Saturday... Satellite imagery places a front across the local area from about mt. St. Helens south southwest to the lane county coast range. Stratiform rain continues to fall east of the front with showers developing to the west of it. Most places have seen measurable rain today and those that haven't will still have a chance of getting a bit with showers into this evening. However, models agree that the highest moisture will slip further south by 00z later this afternoon, so expect rainfall rates to drop off quickly. Decreased pops quite a bit behind the front this afternoon and evening, particularly in the willamette valley, although there will still be a few showers. Continued with a mention of showers in the cascades all the way through tonight as all of the operational models show a non-zero chance. The weather becomes meteorologically unimpressive Thursday as upper ridging begins to build, returning the area to the familiar dry august pattern. Temperatures remain below normal Thursday with the marine layer filling the valleys Thursday morning and taking a bit to burn off. Friday warms a little more as the ridge continues to build, but the ridge is almost immediately then flattened by an upper trough to the north. Models suggest the trough will swing a weakening front into the northern part of the local area Friday night and into Saturday morning, which could trigger some light rain along the northern oregon and southern washington coasts, possibly even as far inland as about longview. Kept some slight chance pops in the forecast through Saturday afternoon in these areas to cover that potential. Otherwise, the flattening of the ridge brings seasonable temperatures for the first part of the weekend. Bowen Long term Saturday night through Wednesday... The GFS and ecmwf 12z guidance are in agreement throughout the extended which gives higher confidence for the long-term forecast. A high pressure will build over central california Saturday night and will persist through Wednesday. This ridge will reduce the chance of precipitation over the forecast area. Moderate onshore flow will keep temperatures in the low to mid 80s through Monday. However, a thermal trough will begin to build over southeast oregon Tuesday and

will bring reduced wind speeds and higher temperatures in the low to mid 90s Tuesday and Wednesday in the willamette valley. -bphillips Aviation The frontal system continues to slowly move across the area through the evening. Coastal areas currently are experiencing ifr MVFR conditions and these conditions should continue through Thursday morning in the post frontal air mass. The exception to this will be at konp, in which ifr conditions along with intermittent lifr conditions through tomorrow morning. Inland locations should experienceVFR conditions with intermittent MVFR conditions through the overnight hours. Kpdx and approaches...VFR conditions should dominate along with intermittent periods of MVFR CIGS though Thursday morning. Marine expect winds to lessen and slowly become northwesterly in the post frontal air mass. Small craft advisory level winds have lessened within pzz270 and pzz275. Winds should also lessen below advisory criteria for pzz250 and pzz255 by late this afternoon. Seas will remain steep through the remainder of the evening in the inner waters but will be subsiding below 10 feet tonight. Seas for most waters will remain around 7 to 8 feet through Thursday. However, there is a a fresh northwest swell around 10 feet to the waters on Thursday for pzz270. A small craft advisory has been issued starting very early Thursday morning and is expected to last through Thursday afternoon. A more typical summer pattern sets up Thursday into next week as high pressure builds offshore with a thermal trough along the northern california and south oregon coasts for predominantly north winds. Pqr watches warnings advisories Or... None. Wa... None. Pz... Small craft advisory from 3 am to 11 am pdt Thursday for waters from CAPE shoalwater wa to cascade head or from 10 to 60 nm. Small craft advisory until 5 pm pdt this afternoon for coastal waters from CAPE shoalwater wa to florence or out 10 nm. Interact with us via social media:

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Weather Reporting Stations

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Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
LOPW1 - 9440422 - Longview, WA	33 mi	55 min			71°F		1015.2 hPa (-0.0)
TLBO3 - 9437540 - Garibaldi, Tillamook Bay, OR	61 mi	55 min			62°F		1016.2 hPa (-0.4)
ASTO3 - 9439040 - Astoria, OR	65 mi	55 min	WNW 2.9 G 8.9	64°F	69°F		1015.4 hPa (+0.3)

Wind History for Longview, WA

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Airport Reports

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Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Pearson Airfield, WA	6 mi	62 min	N 0	9.00 mi	Light Rain	68°F	60°F	76%	1015 hPa
Portland, Portland International Airport, OR	9 mi	62 min	SSE 7	10.00 mi	Overcast	69°F	59°F	70%	1015 hPa
Scappoose Industrial Airpark, OR	10 mi	62 min	S 6	8.00 mi	Light Rain	68°F	62°F	81%	1014.7 hPa
Portland-Hillsboro Airport, OR	12 mi	62 min	S 6	10.00 mi	Fog/Mist	67°F	61°F	81%	1014.9 hPa
Portland, Portland-Troutdale Airport, OR	21 mi	62 min	ENE 3	3.00 mi	Overcast with Haze	67°F	62°F	84%	1015.1 hPa

Link to 5 minute data for KVUO

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Tide / Current Tables for Vancouver, Columbia River, Washington (dubious accuracy)

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Tide / Current Tables for Knappa, Knappa Slough, Columbia River, Oregon

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Weather Map and Satellite Images

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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

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Wind Forecast for Portland, OR (20,4,5,8)

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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.