Saturday, May27, 2017 L-36.com


Marine Weather and Tides
Chinook, 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 5:24AMSunset 9:00PM Saturday May 27, 2017 2:51 AM PDT (09:51 UTC) Moonrise 6:38AMMoonset 10:06PM Illumination 4% Phase: Waxing Crescent; Moon at 2 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- 227 Am Pdt Sat May 27 2017
.small craft advisory for rough columbia river bar in effect until 9 am pdt this morning...
In the main channel..Combined seas around 6 to 7 ft subsiding to near 5 ft early Saturday. However...seas temporarily 8 ft with breakers during the very strong ebb around 630 am Saturday morning...and to 6 ft during the ebb around 715 pm Saturday evening.
PZZ200 227 Am Pdt Sat May 27 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 Chinook, WA
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location: 46.27, -123.95     debug


Area Discussion for - Portland, OR
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Fxus66 kpqr 270342
afdpqr
area forecast discussion
national weather service portland or
841 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 Tonight through Monday... No changes to forecasts this
evening. Pleasant early summer evening across the region with
generally clear skies. 8 pm temperatures in the 50s and lower 60s
along the coast, and upper 60s to mid 70s inland.

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 Saturday. Some ifr stratus
possible along the coast again Saturday morning.

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

Marine Winds will continue below 20 kt 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. Northerly
winds continue over most of the waters through the weekend.

However nearshore winds over the central and south oregon coast
switches to the south Saturday night. This is usually accompanied
by low stratus or fog.

Seas have settled in the 5 to 8 foot range and will settle
around 5 ft through most of next week. We are still in a very
strong morning ebb which requires a small craft advisory for
rough columbia river bar. We have hit the peak ebbs and 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.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46243 - Clatsop Spit, OR - 162 10 mi51 min 54°F5 ft
ASTO3 - 9439040 - Astoria, OR 11 mi51 min WSW 5.1 G 7 52°F 60°F1016.6 hPa (+0.6)
TOKW1 - 9440910 - Toke Point, WA 30 mi51 min NNW 4.1 G 5.1 52°F 54°F1017.4 hPa (+0.5)
46029 - COL RIVER BAR - 20NM West of Columbia River Mouth 30 mi61 min NNW 9.7 G 14 51°F 56°F7 ft1017.2 hPa (+0.0)51°F
46T29 34 mi31 min NNW 9.7 G 14 52°F 55°F1018 hPa51°F
46248 - Astoria Canyon, OR (179) 38 mi51 min 55°F7 ft
46211 - Grays Harbor, WA (036) 44 mi29 min 54°F6 ft
WPTW1 - 9441102 - Westport, WA 45 mi75 min NNW 12 G 14 52°F 52°F1017.1 hPa
TLBO3 - 9437540 - Garibaldi, Tillamook Bay, OR 49 mi51 min 51°F1017 hPa (+0.5)

Wind History for Astoria, OR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Astoria, Astoria Regional Airport, OR8 mi57 minS 30.50 miFog51°F48°F92%1016.9 hPa

Wind History from AST (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmNE3CalmN5N9NW8NW11NW12NW13NW12NW13NW10
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1 day agoCalmSE3SE4SE4S3CalmNW3N5N7NW8NW9NW11NW13NW12NW13W11NW11W5W3W33S4S3Calm
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Tide / Current Tables for Chinook, Baker Bay, Washington
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Chinook
Click for Map
Sat -- 02:06 AM PDT     9.37 feet High Tide
Sat -- 05:30 AM PDT     Sunrise
Sat -- 07:38 AM PDT     Moonrise
Sat -- 08:51 AM PDT     -1.99 feet Low Tide
Sat -- 03:39 PM PDT     7.55 feet High Tide
Sat -- 08:45 PM PDT     2.47 feet Low Tide
Sat -- 08:55 PM PDT     Sunset
Sat -- 11:06 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
7.68.89.48.97.24.72.1-0.1-1.5-2-1.30.32.44.56.37.37.56.65.23.82.72.53.14.5

Tide / Current Tables for Columbia River entrance (N. Jetty), Washington
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Columbia River entrance (N. Jetty)
Click for Map
Sat -- 01:53 AM PDT     8.87 feet High Tide
Sat -- 05:31 AM PDT     Sunrise
Sat -- 07:39 AM PDT     Moonrise
Sat -- 08:43 AM PDT     -1.68 feet Low Tide
Sat -- 03:25 PM PDT     6.95 feet High Tide
Sat -- 08:37 PM PDT     2.31 feet Low Tide
Sat -- 08:56 PM PDT     Sunset
Sat -- 11:06 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
7.48.58.98.16.44.11.8-0.2-1.4-1.6-0.90.72.64.56.16.96.85.94.53.32.52.43.14.5

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 (5,6,7,8)
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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.