Thursday, April26, 2018 L-36.com


Marine Weather and Tides
Warrenton, OR

Version 3.4
What's New / NOTES
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
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.

Sunrise 6:02AMSunset 8:16PM Thursday April 26, 2018 4:01 AM PDT (11:01 UTC) Moonrise 3:44PMMoonset 4:00AM Illumination 85% Phase: Waxing Gibbous; Moon at 11 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- 230 Am Pdt Thu Apr 26 2018
In the main channel..Combined seas will be 2 to 4 feet through Thursday night. However, seas will temporarily build to near 6 ft during the ebbs around 245 am and 315 pm Thursday and again on Friday around 345 am.
PZZ200 230 Am Pdt Thu Apr 26 2018
Synopsis for the southern washington and northern oregon coast.. A south marine surge will continue through the morning. Weak high pressure develops over the waters in the afternoon, but is replaced by a broad low pressure area Friday. A weak front will cross the waters late in the weekend. High pressure spreads over the waters from the west late Sunday and persists through the first half of next week.

7 Day Forecast for Marine Location Near Warrenton, OR
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location: 46.17, -123.92     debug


Area Discussion for - Portland, OR
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Fxus66 kpqr 260944
afdpqr
area forecast discussion
national weather service portland or
243 am pdt Thu apr 26 2018

Synopsis High pressure continues to move farther off to the east,
with an approaching low pressure system from the southwest. Expect
increasing onshore flow today, with much cooler air and clouds moving
in tonight. As the upper low shifts into the region, will see showers
from time to time, with plenty of clouds and cooler air for the
weekend. Ridge of high pressure returns midweek next week, with a
return to drier and sunny weather and warmer temperatures.

Short term Today through Saturday... Already saw a southerly wind
reversal move up the coast this evening, bringing clouds into the
south washington and oregon coasts. Clouds are starting to intrude
inland through the coast range towards the southern half of the
willamette valley. Will probably see some clouds make it into eugene
and corvallis this morning, which will hinder daytime heating for the
south willamette valley. For that reason, high temperatures tomorrow
in the south willamette valley are much lower than farther north
where onshore flow is not quite as strong so clouds should not make
it this far north. Don't expect the stronger marine surge to occur
until late this afternoon, when a strong onshore gradient develops
ahead of the approaching low pressure system from the southwest. This
will push marine clouds inland across the entire area and bring a
drastic drop in temperature which will be a huge relief to people who
don't like the 80+ degree weather.

With the approaching low pressure system, we will also see a few
showers start to develop under southerly flow aloft. CAPE values over
the lane and linn county cascades up to 800 j kg, and LI values of
-2c to -2.5c suggest a chance for a thunderstorm or two this
afternoon through this evening.

Models are showing better rain with the warm front moving up from the
south on Friday. Have bumped up pops and QPF to reflect this. As this
front lifts north, expect showers will become more scattered in
nature and continue on and off from time to time through the weekend
as the upper-level low stalls right over us. This means cooler
temperatures starting Friday, with highs in the upper 50s, maybe
getting up to 60 in a couple spots. -mccoy

Long term Sat night through Tuesday... No changes. Previous
discussion follows... Models consistent in showing the upper low
progressing slowly across the pac nw, augmented by another shortwave
attaching to the low Sat night and sun. This will keep a decent
chance of showers over the region into sun, which combined with the
low level onshore flow keeps temps a little below seasonal normals.

Sun night into Mon models in pretty good agreement that the upper
trough shifts east as a ridge of high pres presses in from the west.

This will allow temps to moderate some during the early next week,
while chances for showers diminish.

Aviation As of 09z marine stratus has pushed well into the
coastal valleys and to the west slopes of the oregon coast range.

The northern extent is to the south washington coast. Coastal taf
sites are generally ifr with CIGS 002 to 005. Expect the coast
and coastal valleys to remain ifr into early afternoon, then cigs
lift to MVFR as the marine layer deepens. Inland areas remainVFR
through Thu evening, but guidance suggests marine stratus (MVFR)
spills into the far west side of the south willamette valley
by 06z fri.

Kpdx and approaches...VFR through at least 06z fri. Surface
thermal trough axis lies over the terminal and vicinity through
early evening. Likely to have east wind to 10 kt at the terminal
through the morning, followed by light and variable wind in the
afternoon. Wind switches to west or onshore between 03z and 06z
fri. Weishaar

Marine No significant marine concerns for the next few days.

Wind speeds generally 15 kt or less through Sat night as an upper
level low well west of the north california coast this morning
drifts east and moves inland over SW oregon and NW california 12z
sat. North wind develops Sun behind the departing low, with small
craft advisory level gusts 20-25 kt likely Sun afternoon through
mon afternoon.

Seas generally 6 ft or less through sun. Wave heights build to
around 10 ft Sun night, primarily over the outer waters. Seas
near 10 ft persist through Mon night and then begin to subside
tue. Weishaar

Pqr watches warnings advisories
Or... None.

Wa... None.

Pz... None.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ASTO3 - 9439040 - Astoria, OR 8 mi43 min SSW 2.9 G 4.1 49°F 54°F1016.2 hPa
46243 - Clatsop Spit, OR - 162 11 mi61 min 52°F6 ft
46029 - COL RIVER BAR - 20NM West of Columbia River Mouth 30 mi71 min SSW 7.8 G 9.7 49°F 54°F6 ft1016.3 hPa (+0.0)49°F
TOKW1 - 9440910 - Toke Point, WA 37 mi49 min SW 1.9 G 2.9 50°F 55°F1016.5 hPa
46248 - Astoria Canyon, OR (179) 38 mi66 min 55°F6 ft
TLBO3 - 9437540 - Garibaldi, Tillamook Bay, OR 42 mi49 min 54°F

Wind History for Astoria, OR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Astoria, Astoria Regional Airport, OR2 mi66 minSSW 41.25 miFog/Mist49°F48°F100%1016.1 hPa

Wind History from AST (wind in knots)
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Last 24hrS4SW6SW5CalmW534N7SW5W9W9W10SW9SW8SW5S5SW3CalmSW6S6SW5SW5S3S4
1 day agoE9E9E4E5NE7E14E15E12SE16
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E9SE10E5NE7NE6NW11NW9NW3CalmE3SE5CalmSE4SE3
2 days agoE4E6E9E6NE5NE6NE8NE10NE13NE13NE13
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NE14NE12NW11NE12E12E5E6E10N6E8E6E8E7

Tide / Current Tables for Warrenton, Skipanon River, Columbia River, Oregon
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Warrenton
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Thu -- 05:00 AM PDT     Moonset
Thu -- 05:21 AM PDT     1.45 feet Low Tide
Thu -- 06:09 AM PDT     Sunrise
Thu -- 11:22 AM PDT     7.55 feet High Tide
Thu -- 04:43 PM PDT     Moonrise
Thu -- 05:41 PM PDT     0.39 feet Low Tide
Thu -- 08:17 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
7.86.85.33.72.31.51.62.53.95.46.87.57.46.44.93.21.70.60.41.22.74.56.47.9

Tide / Current Tables for Chinook, Baker Bay, Washington
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Chinook
Click for Map
Thu -- 04:48 AM PDT     1.63 feet Low Tide
Thu -- 05:00 AM PDT     Moonset
Thu -- 06:09 AM PDT     Sunrise
Thu -- 11:05 AM PDT     7.39 feet High Tide
Thu -- 04:43 PM PDT     Moonrise
Thu -- 05:08 PM PDT     0.45 feet Low Tide
Thu -- 08:17 PM PDT     Sunset
Thu -- 11:46 PM PDT     8.24 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
7.46.14.63.11.91.62.23.24.65.96.97.475.74.12.51.10.50.81.83.45.26.88

Weather Map and Satellite Images
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GOES Local Image of PacificNorthwest    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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Wind Forecast for Portland, OR (7,2,3,4)
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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.