Thursday, April27, 2017 L-36.com


Marine Weather and Tides
Ilwaco, WA

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 6:02AMSunset 8:23PM Thursday April 27, 2017 11:52 AM PDT (18:52 UTC) Moonrise 6:22AMMoonset 9:02PM Illumination 3% 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- 849 Am Pdt Thu Apr 27 2017
.small craft advisory for rough columbia river bar in effect from 5 pm this afternoon to 8 pm pdt this evening...
.small craft advisory for rough columbia river bar in effect from 4 am to 8 am pdt Friday...
In the main channel..Around 6 ft through this evening...then 5 ft later tonight and Friday. However...seas temporarily 10 ft during the ebb around 630 pm today and near 10 ft during the very strong ebb around 645 am Friday.
PZZ200 849 Am Pdt Thu Apr 27 2017
Synopsis for southern washington and northern oregon coast.. High pres will gradually build over the region today and Fri... Then shift inland over the pac nw this weekend. A weak front will push into the region on Sun...followed by another weak front early next week. Longer range indicates return of high pres towards middle of next week.

7 Day Forecast for Marine Location Near Ilwaco, WA
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location: 46.3, -124.03     debug


Area Discussion for - Portland, OR
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Fxus66 kpqr 271622
afdpqr
area forecast discussion
national weather service portland or
921 am pdt Thu apr 27 2017

Synopsis Strong NW flow aloft will bring continued showers today
and snow levels will remain near or just below the cascade
passes. There will be a break in the weather Fri and
sat, with dry and milder conditions. A weakening cold front will
bring the next round of rain Sat night into sun. The trend is then
toward drier and warmer weather as an upper level ridge strengthens
over western north america. With any luck, it may actually feel like
spring next week.

Short term (tonight through Saturday)... Current forecast is on
track, and have made only minor adjustments with the morning forecast
update. A strong pacific jet aiming just south of the portland
forecast area will maintain showers, mainly over the higher terrain
through tonight. Snow levels are below the cascade passes, but the
infrequent and spotty nature of the showers will eliminate the threat
for snow accumulations on the roads. Some of the heavier showers may
bring a mix of snow down to around 2000 feet in the coast range, but
will not stick, and be short-lived.

A large upper level ridge will bring drier weather late tonight
through Saturday morning and afternoon temperatures will warm into
the low to mid 60s. Clouds will increase Saturday afternoon as a
front approaches from the north. The front may bring rain to the
extreme SW washington late Saturday afternoon

Long term No changes. Previous discussion follows... (Saturday
night through Wednesday)... A low pres system is modeled to move into
british columbia late sat, bringing a weakening cold front onshore
into washington and oregon Sat night. The fcst models currently
suggesting light rain develops on the coast Sat evening, then moves
through the interior overnight into Sun morning. Scattered
post-frontal showers likely lingering through much of sun. Then the
upper ridge over the NE pac is modeled to gradually strengthen again
over the pac NW for the first half of next week. The ridge may not be
quite strong enough to prevent a few showers around the area Mon or
tue, so will keep low chance pops in the fcst for now. By wed, it
appears that the ridge strengthens considerably over the region. Most
of our fcst models now suggesting highs reaching into the 70s over
the lowlands Wed afternoon. Hopefully we have not jinxed it, but we
have gone with 70s in the fcst. Pyle

Aviation Cool and unstable onshore flow continues, with
scattered showers today. Flight conditions generally remainVFR
across the region, but will see periods of MVFR as showers pass
overhead and perhaps brief ifr under the heaviest showers.

Showers will decrease after 03z, withVFR CIGS remaining through
good part of the evening. Skies will clear overnight. Light
winds will allow a stratus deck at 015-025 to develop beginning
around 12z.

Kpdx and approaches...VFR conditions through this evening, with
cigs running around 4000 ft. Scattered showers may bring brief
MVFR under heavier showers. A stratus deck around 020 will
develop over the field beginning around 13z. /jbonk

Marine No significant changes from earlier. Previous
discussion follows. For the most part, rather benign pattern
continues with winds mostly 15 kt or less. But seas holding at 8
to 9 ft today into early this evening, then seas will slowly
subside.

High pressure over the region Fri and sat, with winds generally
15 kt or less with seas 5 to 7 ft. A front will push across the
region on Sunday, but with slight boost in winds and seas. A
stronger front will push across the region on tue, but appears
strongest winds still hard pressed to reach 20 kt. Rockey.

Pqr watches/warnings/advisories
Or... None.

Wa... None.

Pz... Small craft advisory for rough columbia river bar from 5 pm
this afternoon to 8 pm pdt this evening.

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
46243 - Clatsop Spit, OR - 162 8 mi142 min 51°F8 ft
ASTO3 - 9439040 - Astoria, OR 15 mi52 min Calm G 1 47°F 51°F1020 hPa (+0.6)
TOKW1 - 9440910 - Toke Point, WA 28 mi52 min WSW 8.9 G 11 49°F 52°F1020.3 hPa (+0.8)
46248 - Astoria Canyon, OR (179) 34 mi142 min 51°F8 ft
46211 - Grays Harbor, WA (036) 40 mi60 min 53°F9 ft
WPTW1 - 9441102 - Westport, WA 42 mi76 min WNW 8.9 G 12 50°F 52°F1019.7 hPa

Wind History for Astoria, OR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Astoria, Astoria Regional Airport, OR13 mi57 minW 910.00 miLight Rain48°F42°F80%1020.2 hPa

Wind History from AST (wind in knots)
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Last 24hrW9W11W10W14
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1 day agoSE8SE7E9SE9E7E7SE4S14
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2 days agoNE11NE10N4NW7NW8W11W10W10W6SW3SE4S6SE6SE5SE4SE5SE3SE3S3E5E6SE4SE7E5

Tide / Current Tables for Ilwaco, Baker Bay, Washington
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Ilwaco
Click for Map
Thu -- 02:08 AM PDT     8.81 feet High Tide
Thu -- 06:08 AM PDT     Sunrise
Thu -- 07:22 AM PDT     Moonrise
Thu -- 09:09 AM PDT     -1.23 feet Low Tide
Thu -- 03:10 PM PDT     7.42 feet High Tide
Thu -- 08:20 PM PDT     Sunset
Thu -- 09:07 PM PDT     1.32 feet Low Tide
Thu -- 10:01 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
6.58.18.88.4752.80.8-0.6-1.2-0.80.72.856.67.47.164.42.91.81.31.73.2

Tide / Current Tables for Point Adams., Columbia River, Oregon
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Point Adams.
Click for Map
Thu -- 01:56 AM PDT     9.29 feet High Tide
Thu -- 06:07 AM PDT     Sunrise
Thu -- 07:22 AM PDT     Moonrise
Thu -- 08:30 AM PDT     -1.14 feet Low Tide
Thu -- 02:59 PM PDT     7.90 feet High Tide
Thu -- 08:19 PM PDT     Sunset
Thu -- 08:28 PM PDT     1.40 feet Low Tide
Thu -- 10:01 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
7.58.89.38.66.84.320.1-1-101.94.167.47.97.35.842.41.51.52.54.3

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 (14,3,4,5)
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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.