Wednesday, June28, 2017 L-36.com


Marine Weather and Tides
Vancouver, WA

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 5:22AMSunset 9:05PM Wednesday June 28, 2017 5:11 AM PDT (12:11 UTC) Moonrise 9:53AMMoonset 11:24PM Illumination 20% Phase: Waxing Crescent; Moon at 4 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- 255 Am Pdt Wed Jun 28 2017
.small craft advisory for rough columbia river bar in effect from 8 am to 11 am pdt this morning...
In the main channel..Combined seas 4 to 5 feet through tonight. However, seas temporarily near 8 ft with breakers during the strong ebb around 845 am today, and near 6 ft with the weaker ebb around 930 pm today.
PZZ200 255 Am Pdt Wed Jun 28 2017
Synopsis for southern washington and northern oregon coast.. Little change in overall weather pattern through the coming weekend. High pres will remain over the ne pac. Meanwhile, thermal low pres will remain over nw california and far sw oregon. Pres gradients will strengthen Sat and Sun, with bit more in way of gusty northerly winds and choppy seas.

7 Day Forecast for Marine Location Near Vancouver, WA
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location: 45.6, -122.62     debug


Area Discussion for - Portland, OR
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Fxus66 kpqr 281005
afdpqr
area forecast discussion
national weather service portland or
305 am pdt Wed jun 28 2017

Synopsis Dry, onshore flow continues through the forecast period.

An upper ridge will traverse the area Thursday and Friday, bringing
less morning stratus and slightly warmer afternoon temperatures.

Otherwise, the seasonable pattern of morning clouds and afternoon sun
continues through early next week under westerly flow aloft.

Short term Today through Saturday... The overall weather pattern is
remarkably similar to this time 24 hours ago, with most sites within
a few degrees of yesterday's temperatures and surface observations
reflecting a marine stratus deck at the coast and along the the lower
columbia, but not yet fully solid through the willamette valley.

Latest satellite data depicts a solid marine push against the coast
range and willapa hills, with inland penetration along the lower
columbia towards the portland metro area as well as into the southern
willamette valley around eugene. Meanwhile, a secondary stratus layer
is developing along the cascade foothills and beginning to build back
into the remaining portions of the valley. Can't rule out a little
drizzle early this morning out of this deeper marine layer,
especially along the coast coast range. Clouds will again be a little
slow to clear, but most of the forecast area will have at least
mostly sunny conditions by the late afternoon with temperatures into
the upper 70s in the inland valleys and in the 60s along the coast.

The offshore upper ridge will move closer to the region late tonight
and into Thursday before moving across the area early Friday.

Low-level flow remains onshore, but expect a compressed marine layer
under the rising heights associated with the ridge. As a result,
expect a weaker marine push with less widespread stratus Thursday
morning. With skies clearing earlier in the day and a warming air
mass (850 mb temperatures warming to around 14 degrees c), expect
temperatures inland to reach the lower 80s in the afternoon. As the
ridge axis moves across the region Friday, even less morning cloud
cover and temperatures into the mid 80s in the valleys can be
expected. Flow aloft becomes a bit more northwesterly as the ridge
continues eastward, with a return to more widespread morning clouds
before abundant afternoon sunshine and temperatures remaining
slightly above normals. Cullen

Long term Saturday night through Tuesday... A rather typical
summertime pattern continues through the holiday weekend as westerly
flow continues through the period. A series of weak embedded impulses
will pass well north of the area at times, with the largest impact to
the local area being increased cloud cover as the marine layer
deepens. Model guidance continues to favor late Saturday and Monday
as the likely timing for this disturbances to pass closest to the
area, but still some variability among ensemble guidance. However,
guidance has trended even more towards less (if any) light rain or
drizzle, so have also guided the forecast for early next week in this
direction. Expect that most locations will remain entirely dry
through the period with temperatures holding slightly above seasonal
normals over the weekend, then trending closer to normal for the
start of next week. Cullen

Aviation Not much change. MVFR stratus will fill the interior
lowlands through 14z, then stay in place through the morning.

Like past few days, stratus will break up between 20z and 22z,
with earliest being to south and east of salem. Most areas will
have scatter clouds or clear skies by early evening. But, marine
stratus will reform along the coast in the evening, and spread
inland again later Wed night.

Kpdx and approaches... MVFR stratus will sit over the region
through 21z, then gradually clear later in the afternoon into
early this evening. rockey

Marine Not much change in overall weather pattern, as will see
rather persistent high pres over the NE pac, and thermal low pres
over NW california into far SW oregon. Gradients not all that
strong, so northerly winds generally staying under 20 kt. But can
not rule out a few gusts just over 20 kt.

Pres gradients will tighten this weekend, with bit more in way of
gusty northerly winds, with generally 20 to 25 kt. Strongest
winds will primarily be south of cascade head.

Overall, seas generally 5 to 7 ft for next few days, with highest
seas over the outer northern waters. With return of gusty
northerly winds this weekend, watch for short choppy wind waves,
especially on Sunday.

Pqr watches warnings advisories
Or... None.

Wa... None.

Pz... Small craft advisory for rough columbia river bar from 8 am to
11 am pdt Wednesday.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LOPW1 - 9440422 - Longview, WA 39 mi42 min 64°F1016.8 hPa
TLBO3 - 9437540 - Garibaldi, Tillamook Bay, OR 69 mi42 min 54°F1017.5 hPa
ASTO3 - 9439040 - Astoria, OR 74 mi42 min NW 5.1 G 7 57°F 66°F1016.5 hPa

Wind History for Longview, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Portland, Portland International Airport, OR1 mi19 minNW 410.00 miMostly Cloudy57°F48°F74%1017 hPa
Pearson Airfield, WA3 mi19 minN 010.00 miOvercast57°F51°F81%1016.9 hPa
Portland, Portland-Troutdale Airport, OR12 mi19 minW 310.00 miOvercast58°F50°F75%1017 hPa
Scappoose Industrial Airpark, OR17 mi19 minN 010.00 miOvercast52°F50°F93%1016.8 hPa
Portland-Hillsboro Airport, OR18 mi19 minN 010.00 mi53°F48°F86%1016.7 hPa

Wind History from PDX (wind in knots)
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Last 24hrN3N3NW3N4344NW64NW5N5N4N43N6N9N6N5N4NW6NW3N3N4NW4
1 day agoCalmN55CalmNW53NW75NW6W7N5NW7N66N5NW9N5N5N4NW6N7NW7N6NW5
2 days agoW7W6W6W3NW6NW6W7NW7W8NW9NW8NW7N6NW7NW3NW5N4N4CalmN4CalmNW6NW6NW6

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

Wed -- 05:24 AM PDT     Sunrise
Wed -- 06:52 AM PDT     2.13 feet Low Tide
Wed -- 10:41 AM PDT     8.38 feet High Tide
Wed -- 10:52 AM PDT     Moonrise
Wed -- 07:27 PM PDT     -0.71 feet Low Tide
Wed -- 09:03 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
7.97.26.25.1432.32.13.55.97.98.37.96.85.43.82.31-0.1-0.6-0.41.64.46.9

Tide / Current Tables for Portland, Willamette River, Oregon - IGNORE HEIGHTS
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Portland
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

Wed -- 05:24 AM PDT     Sunrise
Wed -- 06:51 AM PDT     2.13 feet Low Tide
Wed -- 10:01 AM PDT     8.38 feet High Tide
Wed -- 10:52 AM PDT     Moonrise
Wed -- 07:26 PM PDT     -0.71 feet Low Tide
Wed -- 09:03 PM PDT     Sunset
Wed -- 11:26 PM PDT     8.02 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
7.66.85.84.73.72.92.32.2478.48.17.46.24.83.31.90.7-0.2-0.7-0.32.35.67.8

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 (8,2,3,4)
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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.