Sunday, April30, 2017 L-36.com


Marine Weather and Tides
Naselle, 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 5:57AMSunset 8:27PM Sunday April 30, 2017 7:55 AM PDT (14:55 UTC) Moonrise 8:54AMMoonset 12:00AM Illumination 21% Phase: Waxing Crescent; Moon at 5 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- 238 Am Pdt Sun Apr 30 2017
In the main channel..3 to 5 ft building to around 6 ft this afternoon. However...seas will temporarily build to near 8 ft during the very strong ebb around 830 am this morning and again to near 8 ft during the weaker ebb around 915 pm tonight.
PZZ200 238 Am Pdt Sun Apr 30 2017
Synopsis for southern washington and northern oregon coast.. High pressure builds over the waters today. Another weak front moves across early next week. Longer range indicates return of weak high pres towards middle of next week.

7 Day Forecast for Marine Location Near Naselle, WA
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location: 46.39, -123.84     debug


Area Discussion for - Portland, OR
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Fxus66 kpqr 301017
afdpqr
area forecast discussion
national weather service portland or
316 am pdt Sun apr 30 2017

Synopsis A cold front moved through most of southwest washington
and northwest oregon overnight, and will move east of the cascades
early this morning with decreasing showers the remainder of today.

After a brief weak upper ridge moves through tonight, the next weak
system will move through Monday and Monday night with just some very
light precipitation. A warm front will likely brush the forecast area
Tuesday and Tuesday night with some very light precipitation again. A
building upper ridge will push the warm front north of the area
Wednesday and bring the warmest temps of the year so for to the area,
likely well up in the 70s and possibly close to 80. Thursday will be
another warm day but an approaching system may give a chance of
showers late in the day with thunder possible near the cascades. This
system may keep a chance of showers into next weekend.

Short term Today through Tuesday... A cold front has brought rain
to southwest washington and northwest oregon overnight, with decent
amounts. The front was moving south through newport at 3 am and will
clear the rest of our forecast area by about 8 am this morning. After
that, look for decreasing showers as surface high pressure noses in
with its axis near the columbia river, causing the low level flow to
turn more northerly.

A weak upper ridge moves through tonight which should bring some
partial clearing and mostly dry weather tonight. Cannot rule out some
patchy fog or low clouds late tonight and Monday morning.

The models show a weak system moving through the ridge Monday and
Monday night with areas of light precipitation moving through.

Amounts will be light and all areas may not see precipitation, but
some will likely be around.

The models show a warm front lifting north on Tuesday that may bring
some light precipitation to the area again. The models have not been
in much agreement or even have much run to run consistency about
this, but the most likely scenario is some light precipitation near
the coast and possibly locally inland as well. Tolleson

Long term No changes. Previous discussion follows... Tuesday night
through Saturday... The fairly strong upper level ridge is expected to
remain over the region through wed. The model 850mb temps warm
considerably wed, suggesting high temps well into the 70s are likely
for the interior lowlands. The ridge axis shifts further east into
the interior NW thu, which allows a fairly deep trough to approach
the coast later Thu and fri. The fcst models bring increasing precip
chances Thu afternoon, will the potential for some thunderstorm
activity. Highs on Thu expected to remain several degrees above
normal. Precip chances continue Fri and Sat as the trough shifts
directly over the region, with temps cooling off considerably. Pyle

Aviation After a period of predominantly MVFR CIGS with frontal
passage, CIGS appear to be improving inland for a mix ofVFR and MVFR
conditions. Along the coast, lifr conditions at konp will likely
improve to ifr conditions after the front moves through, for a mix of
MVFR and ifr conditions at coastal terminals. Conditions improving
this morning, with predominantlyVFR conditions at inland sites by
around 15z, andVFR conditions along the coast by 00z. Will see MVFR
stratus redevelop along the coast this evening around 05z, but don't
expect this stratus to make it inland. With partly cloudy to mostly
clear skies inland, could see fog develop late tonight.

Kpdx and approaches... Mix ofVFR and MVFR conditions early with cigs
hovering around 2500-3500 ft. Will see improvement as CIGS lift to
5000-6000 ft by 21z.VFR conditions continue through this evening,
but a chance of fog later tonight. -mccoy

Marine Buoys near the mouth of the columbia river show steep
square seas, likely extending farther out this morning. This should
continue for a few more hours as winds are backing down this morning
behind the front. Farther south over the central oregon waters where
winds never got up above 20 kt, seas have stayed below SCA criteria,
but still seeing choppy seas with periods of 6 seconds at buoy 50.

High pressure builds back over the waters today bringing quiet
weather. Seas will build up a bit this evening as we get clipped by
some fresh swell being generated off the b.C. Coast, but not
expecting seas to even hit 10 ft. Seas come back down Monday for
benign conditions. After a weak front skirts the waters late Monday
or early Tuesday, a summer-like northerly wind pattern should develop
for a couple days toward the middle of next week. A westerly swell
may impact the waters late in the week, but confidence in this
scenario is low. -mccoy

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

Wa... None.

Or... None.

Wa... None.

Pz... Small craft advisory for hazardous seas until 4 pm pdt this
afternoon for coastal waters from CAPE shoalwater wa to
cascade head or out 60 nm.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ASTO3 - 9439040 - Astoria, OR 13 mi44 min NNW 5.1 G 7 48°F 52°F1024.8 hPa
46243 - Clatsop Spit, OR - 162 19 mi26 min 52°F6 ft
TOKW1 - 9440910 - Toke Point, WA 23 mi44 min NW 6 G 7 48°F 52°F1025 hPa
WPTW1 - 9441102 - Westport, WA 38 mi80 min NW 16 G 19 49°F 52°F1024.3 hPa
46211 - Grays Harbor, WA (036) 39 mi34 min 52°F6 ft
46248 - Astoria Canyon, OR (179) 46 mi26 min 52°F6 ft

Wind History for Astoria, OR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Astoria, Astoria Regional Airport, OR16 mi61 minW 510.00 miMostly Cloudy46°F39°F77%1024.8 hPa

Wind History from AST (wind in knots)
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Last 24hrCalmCalmCalmCalm--SW14SW8
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1 day agoS6E4SE3NW4N6NW12NW10NW11NW9NW10NW10NW8NW8W5CalmCalmSE4SE3E4E3E3SE3CalmSE3
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NW11NW12NW12NW13NW10NW7NW7W9SW3W3S4CalmS4S4S5E4

Tide / Current Tables for Naselle River, 4 miles above swing bridge, Willapa Bay, Washington
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Naselle River
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Sun -- 12:20 AM PDT     Moonset
Sun -- 05:13 AM PDT     11.93 feet High Tide
Sun -- 06:02 AM PDT     Sunrise
Sun -- 09:54 AM PDT     Moonrise
Sun -- 12:09 PM PDT     -1.38 feet Low Tide
Sun -- 06:42 PM PDT     9.61 feet High Tide
Sun -- 08:23 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.446.591111.911.59.97.44.51.8-0.4-1.4-0.90.93.45.989.39.68.675.13.4

Tide / Current Tables for Paradise Point, Long Island, Willapa Bay, Washington
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Paradise Point
Click for Map
Sun -- 12:20 AM PDT     Moonset
Sun -- 05:07 AM PDT     10.85 feet High Tide
Sun -- 06:02 AM PDT     Sunrise
Sun -- 09:54 AM PDT     Moonrise
Sun -- 11:46 AM PDT     -1.86 feet Low Tide
Sun -- 06:30 PM PDT     9.11 feet High Tide
Sun -- 08:23 PM PDT     Sunset
Sun -- 11:54 PM PDT     2.37 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.64.77.1910.310.810.48.86.23.40.7-1.3-1.8-0.51.74.16.27.9997.96.14.43

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 (10,2,3,4)
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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.