Monday, June26, 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 5:21AMSunset 9:05PM Monday June 26, 2017 3:33 PM PDT (22:33 UTC) Moonrise 7:32AMMoonset 10:15PM Illumination 8% Phase: Waxing Crescent; Moon at 3 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- 237 Pm Pdt Mon Jun 26 2017
.small craft advisory for rough columbia river bar in effect Tuesday morning...
In the main channel..Combined seas around 4 ft tonight and Tue. However, seas will temporarily build to 6 or 7 ft with breakers possible during the weaker ebb around 745 pm this evening, and to around 8 ft with breakers during the very strong ebb around 8 am Tue morning.
PZZ200 237 Pm Pdt Mon Jun 26 2017
Synopsis for southern washington and northern oregon coast.. Higher pres will remain over the ne pac and along the S washington and N oregon coasts for the next few days. Thermal low pres will tend to remain well S in N california. After some S winds along the immediate coast today along parts of the oregon coast, winds will tend to be more summer type N or nw winds much of the week.

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 262145 aaa
afdpqr
area forecast discussion
national weather service portland or
245 pm pdt Mon jun 26 2017

Synopsis A shortwave upper level trough is moving through sw
washington and NW oregon today. This feature brought thunderstorms to
portions of the fcst area this morning. There remains a slight chance
of thunderstorms in the lane county cascades into early this evening,
but otherwise the threat appears to be over. A dry and seasonal
pattern is expected through the rest of the week. Dry northwesterly
flow will bring near average temperatures and a pattern of morning
clouds and afternoon sunshine. Temperatures may warm a bit toward the
end of the week and early next weekend.

Short term Tonight through Thursday... Today is a transition day
for the weather pattern over the pac nw. The strong upper level ridge
that brought record breaking heat over the weekend has shifted east
into the rockies. This has opened the door for a shortwave trough to
move into the pac nw. There were numerous elevated thunderstorms this
morning in the southerly flow ahead of the trough. As the trough has
moved onshore this afternoon, the mid-level flow has developed more
of a westerly component and the thunderstorm activity has shifted
east of the cascades. There is still a slight chance of a
thunderstorm near the cascade crest, mainly south of mt. Hood,
through the early evening hours. Otherwise, it has turned into a nice
day, with temps across the region currently in the low to mid 70s, a
welcome relief from the heat of the past few days. Marine clouds
filled into most of the interior lowlands this morning, but it has
now cleared back to the coast and west slopes of the coast range
this afternoon. Increasing onshore flow will bring more cool marine
air into the valley later this afternoon and evening.

There will be little change to the overall weather pattern for the
next few days. A weak upper level troughing pattern will bring
continued moderate onshore flow, keeping temps near seasonal
averages. So expect highs in the mid 70s for the interior lowlands,
with 60s at the coast. The onshore flow will also bring the typical
pattern of marine stratus pushing into the lowlands during the
overnight and morning hrs, then burning back to the coast during the
afternoon and evening.

The NE pac upper ridge is modeled to strengthen over the region on
thu. This will likely push temps several degrees higher, with highs
rebuilding back into the upper 70s to low 80s over the interior. Pyle

Long term Thursday night through Monday... Flat upper level ridging
is modeled to reside over the pac NW Fri and sat. The low level flow
remains weakly onshore, which should keep cool and partly to mostly
cloudy conditions in place at the coast. However, do not think there
will be enough onshore to bring a whole lot of clouds into the
interior on Fri or Sat mornings. With the increased sunshine and
slightly warmer air mass, expect highs for the lowlands to remain in
the low to mid 80s for the interior. An upper level shortwave is
modeled to drop into the region Sun into mon. This should again
increase the onshore flow and strength of the marine
pushes, limiting temps back in the 70s. Pyle

Aviation Onshore low level flow will continue through tonight
and Tuesday. Stratus has cleared back to the west slopes of the
coast range this afternoon with MVFR conditions continuing at the
coast andVFR inland. Convection inland has eased but there is
still a small chance of a shower until the disturbance overhead
moves east this evening. Expect MVFR CIGS to return inland
probably not too long after midnight and continue through the
morning before lifting toVFR again Tuesday afternoon. The coast
will continue to be MVFR this evening through most if not all of
Tuesday, with some pockets of ifr possible later tonight and
Tuesday morning.

Kpdx and approaches...VFR conditions this afternoon and evening.

A small chance of a shower with brief lower cigs. MVFR cigs
likely to return afternoon midnight tonight through Tue morning,
lifting toVFR during the afternoon on Tuesday. Pt

Marine Very weak lower pres over the waters will give way to
building high pres through the remainder of today and tonight
that will remain along the coast through most of the week. After
some south winds which have continued along a good part of the
oregon coast this afternoon, this building higher pressure will
shift all winds to more northwesterly and northerly that will
continue through the week. The winds may come close to small
craft advisory thresholds during the afternoon and evening on
Tuesday and Wednesday mainly in the far outer waters, but it
looks very borderline.

Seas to continue well below 10 ft for the next several days.

Currently seas are around 5 to 6 ft with a 7 to 9 second
dominant period. Seas will be somewhat choppy but does not look
like it will exceed advisory criteria. Periods will lengthen a
bit later in the week. Pt

Pqr watches warnings advisories
Or... None.

Wa... None.

Pz... Small craft advisory for rough columbia river bar from 6 am to
10 am pdt Tuesday.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LOPW1 - 9440422 - Longview, WA 39 mi45 min 64°F1015.5 hPa
TLBO3 - 9437540 - Garibaldi, Tillamook Bay, OR 69 mi45 min 55°F1017.9 hPa
ASTO3 - 9439040 - Astoria, OR 74 mi45 min WNW 1.9 G 8 63°F 67°F1016.7 hPa

Wind History for Longview, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Portland, Portland International Airport, OR1 mi40 minW 710.00 miPartly Cloudy73°F55°F53%1014.6 hPa
Pearson Airfield, WA3 mi40 minW 610.00 miFair72°F59°F64%1014.7 hPa
Portland, Portland-Troutdale Airport, OR12 mi40 minVar 610.00 miFair76°F55°F50%1014.5 hPa
Scappoose Industrial Airpark, OR17 mi40 minVar 310.00 miFair72°F57°F61%1014.6 hPa
Portland-Hillsboro Airport, OR18 mi40 minVar 610.00 miA Few Clouds76°F57°F54%1014.2 hPa

Wind History from PDX (wind in knots)
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Last 24hrNW8NW7N6NW7NW3NW5N4N4CalmN4CalmNW6NW6NW6CalmN55CalmNW53NW75NW6W7
1 day agoE15E13
G18
E16E13E12E11E7E5NE3NW4CalmW3NW3NW6W7W6W6W3NW6NW6W7NW7W8NW9
2 days agoNW9NW14N8N10
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NW6N5W5W5W5W5W4W4W3CalmW3NW3NW3NW6W5NW8CalmE18
G23
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G21

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

Mon -- 05:02 AM PDT     2.17 feet Low Tide
Mon -- 05:23 AM PDT     Sunrise
Mon -- 08:32 AM PDT     Moonrise
Mon -- 08:56 AM PDT     9.46 feet High Tide
Mon -- 05:54 PM PDT     -1.68 feet Low Tide
Mon -- 09:03 PM PDT     Sunset
Mon -- 10:29 PM PDT     8.00 feet High Tide
Mon -- 11:14 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
6.55.34.23.22.52.23.25.98.59.59.186.44.52.71-0.4-1.4-1.7-0.32.65.77.77.9

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

Mon -- 05:01 AM PDT     2.17 feet Low Tide
Mon -- 05:23 AM PDT     Sunrise
Mon -- 08:16 AM PDT     9.46 feet High Tide
Mon -- 08:33 AM PDT     Moonrise
Mon -- 05:53 PM PDT     -1.68 feet Low Tide
Mon -- 09:03 PM PDT     Sunset
Mon -- 09:49 PM PDT     8.00 feet High Tide
Mon -- 11:14 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
64.93.932.42.23.77.19.39.38.57.35.63.92.20.6-0.6-1.4-1.70.23.8787.6

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 (18,4,5,8)
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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.