Friday, May26, 2017 L-36.com


Marine Weather and Tides
Carson, 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 8:48PM Friday May 26, 2017 12:28 AM PDT (07:28 UTC) Moonrise 5:35AMMoonset 8:52PM Illumination 1% Phase: New Moon; 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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7 Day Forecast for Marine Location Near Carson, WA
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location: 45.8, -121.91     debug


Area Discussion for - Portland, OR
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Fxus66 kpqr 260353
afdpqr
area forecast discussion
national weather service portland or
851 pm pdt Thu may 25 2017

Synopsis Upper level high pressure builds over the region on
Friday, with dry and warmer conditions developing. High pressure
aloft will hold over the region through the memorial day holiday
weekend, and afternoon temperatures will remain well above normal.

High pressure shifts eastward early next week ahead of the
next approaching disturbance. Temperatures trend gradually cooler
with a return of precipitation chances during the second half of next
week as a disturbance tracks across the pacific northwest.

Short term Today through Sunday... It has been a very pleasant late
spring day across the cwa, with abundant afternoon sunshine and high
temps into the mid 70s over the interior lowlands and 60s at the
coast. The only weather of note has been some scattered showers over
the cascades during the late afternoon and early evening hours,
which were associated with a low pres system centered near the or id
border. The circulation associated with the low is bringing N ne
winds into the cascades, so showers that formed along the crest were
drifting westward into our cwa. We even detected a lightning strike
out of one of the showers to the north of mt. Jefferson. Based on
the latest radar imagery, the showers have mostly ended at this
point, and the threat should be over by 06z. Other than some
scattered debris clouds from the dissipating showers, there is no
cloud cover over SW washington and NW oregon this evening. Visible
satellite shows a marine stratus deck well offshore, and the current
trend is for the stratus to continue to clear from N to s. Based on
the current satellite trends and the fact that 850 mb flow will
become easterly overnight, decided to remove low clouds from the
fcst along the coast overnight into Fri am. There may be some patchy
stratus or flow along the central or coast south of konp, but think
that in general we will see clear skies overnight.

An upper level ridge currently well offshore will continue to
gradually shift eastward, with the ridge axis near the coast on
Friday and squarely over the pacific northwest and great basin over
the weekend. With 500 mb heights rising steadily through the holiday
weekend and 850 mb temperatures likewise warming, afternoon
temperatures will respond accordingly over the next few days. High
temperatures in the willamette valley will be in the lower 80s
Friday, and generally in the mid to upper 80s over the weekend.

However, models continue to suggest a weak surge of marine stratus
due to a southerly wind reversal along the coast on Friday night,
starting in south and pushing up to around pacific city. This may
keep Saturday's temperatures a little bit cooler along the southern
and central portions of the coast than the pattern might otherwise
suggest. Pyle cullen

Long term Sunday night through Thursday. Little change to the
overall pattern for the memorial day holiday, with the upper level
high pressure still squarely positioned over western u.S. And
temperature remaining well above seasonal normals. However, by Monday
night into Tuesday, heights begin to lower ahead of the next
approaching disturbance. Some discrepancies among the models with
respect to timing and strength of this feature, so for now have
trended the forecast in line with a blend of models for Tuesday and
Wednesday. For the second cycle, however, the deterministic GFS has
been very much on the cool end of the GEFS ensemble spread with
respect to temperatures heights. For this reason, have continued to
hold the temperature forecast a bit above the (deterministic)
consensus and have leaned towards the ensemble mean. Thus, confidence
in the forecast during the breakdown of the ridge is a bit lower than
average. Nonetheless, expect a cooling trend back to near or perhaps
slightly below normals for the start of june. Cullen

Aviation Vfr conditions for the entire area. Isolated showers
over the cascades drifting toward the southwest are all but gone.

Some patchy low stratus may develop along the coast by morning
but not likely to affect kast or konp.

Kpdx and approaches...VFR through the period. Mh

Marine Winds remain below small craft advisory criteria but
there have been a few gusts near 20 kt over the central oregon
coastal waters.

Seas have subsided a little in the 9 to 10 ft range and
continue 2 feet above guidance. With seas hovering around the 10
ft level with dominant period around 9 to 10 seconds have pushed
back the end time of the small craft advisory through 3 am fri.

Beyond tonight, winds and seas will remain benign until at least
the middle of next week. Mh bentley

Pqr watches warnings advisories
Or... None.

Wa... None.

Pz... Small craft advisory for hazardous seas until 3 am pdt Friday
for coastal waters from CAPE shoalwater wa to florence or
out 60 nm.

Small craft advisory for rough columbia river bar from 4 am to
8 am pdt Friday.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LOPW1 - 9440422 - Longview, WA 59 mi40 min 55°F1012 hPa

Wind History for Longview, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure

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

Fri -- 03:58 AM PDT     1.84 feet Low Tide
Fri -- 05:28 AM PDT     Sunrise
Fri -- 06:38 AM PDT     Moonrise
Fri -- 08:02 AM PDT     9.89 feet High Tide
Fri -- 04:56 PM PDT     -1.68 feet Low Tide
Fri -- 08:46 PM PDT     Sunset
Fri -- 09:26 PM PDT     7.96 feet High Tide
Fri -- 09:53 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
53.82.82.11.835.98.79.99.58.56.84.82.81-0.4-1.4-1.7-0.42.65.77.77.97.2

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

Fri -- 03:33 AM PDT     1.84 feet Low Tide
Fri -- 05:28 AM PDT     Sunrise
Fri -- 06:39 AM PDT     Moonrise
Fri -- 07:36 AM PDT     9.89 feet High Tide
Fri -- 04:31 PM PDT     -1.68 feet Low Tide
Fri -- 08:47 PM PDT     Sunset
Fri -- 09:00 PM PDT     7.96 feet High Tide
Fri -- 09:54 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.53.32.51.92.14.17.29.49.89.27.86420.4-0.9-1.6-1.40.846.887.76.8

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 (3,6,7,8)
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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.