Wednesday, July17, 2019 L-36.com


Marine Weather and Tides
Minnehaha, WA

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Sunrise 5:36AMSunset 8:57PM Wednesday July 17, 2019 3:20 AM PDT (10:20 UTC) Moonrise 8:46PMMoonset 5:15AM Illumination 100% Phase: Full Moon; Moon at 15 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- 258 Am Pdt Wed Jul 17 2019
In the main channel.. - general seas...3 to 4 ft through Wednesday night. - first ebb...strong ebb around 545 am Wednesday. Seas near 6 or 7 ft. - second ebb...around 545 pm Wednesday. Seas near 6 ft. - third ebb...strong ebb around 630 am Thursday. Seas near 9 ft with breakers likely.
PZZ200 258 Am Pdt Wed Jul 17 2019
Synopsis for the southern washington and northern oregon coast.. High pressure briefly returns today. A front moves through on Wed. High pressure will build offshore late in the week for a return to a more typical summer pattern which continues next week.


7 Day Forecast for Marine Location Near Minnehaha, WA
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location: 45.62, -122.67     debug


Area Discussion for - Portland, OR
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Fxus66 kpqr 170956
afdpqr
area forecast discussion
national service portland or
256 am pdt Wed jul 17 2019

Synopsis A frontal system will produce widespread light rain
Wednesday through Thursday morning. Drier and cooler air arrives
behind the front. Then warmer weather is expected for the weekend.

Short term Wednesday through Friday... A weak warm front will bring
light rain to the coast early this morning, spreading inland later
today with what looks like a secondary warm front. A trailing cold
front will continue rain chances as it moves inland through Wednesday
night. Rainfall will be highest along the coast and higher terrain of
sw washington and extreme north oregon where 0.25 to 0.5 inches of
rain is possible from this morning through tonight. Expect much less
rain for the interior lowlands, likely less than 0.10 inches.

Drier north flow moves in behind the cold front Thursday afternoon,
which will allow the dew point temperatures to lower to near or below
50 Thursday night, and the minimum temperatures in the low to mid
50s, likely 10 degrees cooler than what we've been seeing over the
last week or so. A weak shortwave trough may generate some drizzle
along the north coast Friday morning, but otherwise expect dry
weather Friday with clearing in the afternoon and daytime
temperatures warming into the upper 70s. Not much in the way of
forecast changes overall in the short term. Bowen

Long term Friday night through Tuesday... A high pressure ridge
builds over northwest oregon and southwest washington through Monday.

This will keep conditions fairly clear and dry through the
weekend with warming temperatures. Models are hesitating a little bit
regarding exactly how warm it will get, so didn't end up changing
temperatures much at all. Hopefully models will get into better
agreement over the next 24 hours. The ridge begins to weaken Monday
night as an upper trough approaches from the northwest. However, will
only see a little bit in the way of cooling by Tuesday. Overall, the
long term looks dry and seasonably warm. Bowen

Aviation A warm front moves into western wa this morning and
brushes the north or coast as well. A cold front follows later
this afternoon and evening. GenerallyVFR across the area with
spots of MVFR at the coast. Expect the MVFR or lower conditions
to become widespread after 12z at the coast with light rain
starting shortly after. Rain tapers off tonight for the coast.

Inland areas... Should see some MVFR CIGS develop for a few hours
this morning. Areas from ksle southward have less cloud cover
and is probably more prone to radiational cooling for stratus
development. CIGS that develop will probably be in the 1500-2500
ft range based on forecast soundings. Looks likeVFR should
prevail inland but better chances for MVFR develop late in the
afternoon and evening.

Kpdx and approaches...VFR prevailing with CIGS in the 4000-7000
ft range. There is moderate confidence for MVFR CIGS around
1500-2500 feet 12-17z. After 00z CIGS will probably lower to 4000
ft and may occasionally lower to around 3000 ft this evening.

Marine Wind have been slowly increasing overnight and is close
to most model forecasts. It appears the small craft advisory is
on track for today so no changes to the headlines. Wind gusts
between 21 and 30 kt in the northern waters expected for most of
the day. The southern waters have an advisory for a shorter time
period late this morning.

High pressure begins to rebuild offshore on Thursday and
strengthens for the weekend. This will result in a return to
northerly winds through early next week. Gusts of 25-30 kt can
be expected for the weekend with the strongest winds beyond 10 nm
offshore.

Seas start in the 3 to 4 ft range, then build to around 8 feet
Thursday morning. Seas will be choppy as this system passes with
the potential for square seas on Thursday morning. Seas will
stay above 5 ft through the weekend. The larger seas are a
product of the increased wind wave height from the short wave
system that moves through Wednesday night into Thursday but also
from a swell out of the NW that will be the dominant swell
throughout the forecast time period. -bphillips mh

Pqr watches warnings advisories
Or... None.

Wa... None.

Pz... Small craft advisory from 8 am this morning to 5 pm pdt this
afternoon for coastal waters from CAPE shoalwater wa to
cascade head or out 60 nm.

Small craft advisory from 11 am this morning to 2 pm pdt this
afternoon for coastal waters from cascade head or to
florence or out 60 nm.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LOPW1 - 9440422 - Longview, WA 37 mi56 min 69°F1015.3 hPa
TLBO3 - 9437540 - Garibaldi, Tillamook Bay, OR 66 mi56 min 63°F1015.9 hPa
ASTO3 - 9439040 - Astoria, OR 71 mi50 min SSE 6 G 9.9 62°F 68°F1014.3 hPa

Wind History for Longview, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Pearson Airfield, WA1 mi27 minN 010.00 miOvercast64°F54°F70%1015.3 hPa
Portland, Portland International Airport, OR4 mi27 minN 010.00 miOvercast66°F53°F63%1015.3 hPa
Scappoose Industrial Airpark, OR14 mi27 minW 310.00 miOvercast58°F55°F90%1015.3 hPa
Portland, Portland-Troutdale Airport, OR15 mi27 minN 010.00 miOvercast65°F54°F68%1015.2 hPa
Portland-Hillsboro Airport, OR16 mi27 minNW 310.00 miMostly Cloudy58°F54°F87%1015.4 hPa

Wind History from VUO (wind in knots)
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Last 24hrNW3NW3CalmCalmCalmNW5CalmCalm35N3344NW10NW9N7NW95N5CalmCalmCalmCalm
1 day ago4CalmN4CalmCalmN3CalmCalmNW4SW33Calm3Calm6W4W5NW4NW4NW3NW4NW4NW3NW4
2 days agoCalmCalmCalmCalmNW653SW65NW6NW8SW55NW6W7NW5NW6NW7NW6NW6NW6NW3CalmCalm

Tide / Current Tables for Vancouver, Washington - IGNORE HEIGHTS
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Kelley Point, Oregon - IGNORE HEIGHTS
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Weather Map and Satellite Images
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wmap_P
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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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Portland, OR (6,6,7,8)
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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.