Saturday, April29, 2017 L-36.com


Marine Weather and Tides
McMinnville, OR

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 6:00AMSunset 8:19PM Saturday April 29, 2017 8:20 PM PDT (03:20 UTC) Moonrise 7:57AMMoonset 11:14PM Illumination 17% Phase: Waxing Crescent; Moon at 4 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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PZZ255 Coastal Waters From Cascade Head To Florence Or Out 10 Nm- Waters From Cascade Head To Florence Or From 10 To 60 Nm- 210 Pm Pdt Sat Apr 29 2017
.small craft advisory for winds in effect until 1 am pdt Sunday...
Tonight..SW wind 15 to 20 kt...veering to W after midnight. Gusts to 25 kt. Wind waves W 3 ft at 4 seconds. W swell 3 ft at 8 seconds...building to 5 ft at 8 seconds after midnight. Rain.
Sun..NW wind 10 to 15 kt with gusts to 20 kt. Wind waves nw 2 ft at 4 seconds. W swell 6 ft at 9 seconds.
Sun night..N wind 10 kt with gusts to 15 kt...veering to ne after midnight. Wind waves N 2 ft at 4 seconds. NW swell 7 ft at 11 seconds.
Mon..NE wind 5 to 10 kt. Wind waves ne 1 ft at 4 seconds. NW swell 6 ft at 9 seconds. Chance of showers.
Mon night..NE wind 5 to 10 kt...veering to se after midnight. Wind waves ne 1 ft at 4 seconds...shifting to the se 2 ft at 4 seconds after midnight. W swell 4 ft at 9 seconds. Chance of showers.
Tue..SE wind 5 to 10 kt. Wind waves 2 ft. W swell 3 ft.
Tue night..NW wind 5 to 10 kt. Wind waves 2 ft. W swell 4 ft.
Wed..N wind 10 to 15 kt. Wind waves 3 ft. W swell 6 ft.
Thu..NW wind 15 to 20 kt. Wind waves 4 ft. W swell 8 ft.
PZZ200 210 Pm Pdt Sat Apr 29 2017
Synopsis for southern washington and northern oregon coast.. Weak front moves across the waters this afternoon. High pressure builds over the waters behind this front until another weak front moves through early next week. Longer range indicates return of weak high pres towards middle of next week.

7 Day Forecast for Marine Location Near McMinnville, OR
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location: 45.21, -123.21     debug


Area Discussion for - Portland, OR
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Fxus66 kpqr 292214
afdpqr
area forecast discussion
national weather service portland or
314 pm pdt Sat apr 29 2017

Synopsis Low pressure moving into british columbia will bring a
frontal system through the region tonight. Light rain will spread
into the north coastal areas later this afternoon, then across
the area tonight. There will be post-cold frontal showers early
Sunday, with showers decreasing through the day. Another weak system
will likely bring light rain Monday into Monday night. Higher
pressure will bring dry and much warmer weather to the area during
the mid week period, though a warm front might get close to brushing
the far north coast Tuesday. An upper level trough is modeled to
approach the pac NW late Thursday into Fri and may linger into the
weekend. This will bring increasing precip chances and cooler
weather.

Short term Tonight through Tuesday... Conditions are dry across
most of the region this afternoon as an upper level ridge resides
over the pac nw. However, the ridge axis is now east of the cascades
and high clouds are increasing ahead of the next approaching frontal
system. This frontal system is associated with occluding low pres
moving toward haida gwai today. The leading warm front will spread
light rain onto the south wa and far north or coast later through the
late afternoon, with rain spreading inland this evening. The cold
front will move through the region overnight. Overall rainfall
amounts through the overnight period will not be all that impressive,
with less than 0.25 inch over the interior lowlands.

The coast and higher terrain of the coast range and cascades should
generally be in the 0.25-0.5 inch range with locally higher amounts
possible.

There will be some post-frontal showers around Sunday. There is not
much cold air aloft moving in behind this front, so instability will
be limited and showers should be pretty weak. The best showers should
be in the morning, with decreasing activity in the afternoon. The
airmass will be cooler, with 850 temps modeled to drop back below 0c.

This should limit high temps in the upper 50s for the lowlands.

There will be a break later Sun into early mon. Then the fcst models
in decent agreement that another weak low will form offshore along
the stalled baroclinic zone from tonight's system, bringing the front
back north as a warm front during the day mon. Expect rain chances to
increase Mon afternoon and Mon night. The system is weak enough that
confidence is not all that high that all locations will see
measurable rainfall.

The NE pac upper level ridge will strengthen significantly over the
pac NW on tue. This should mean mainly dry conditions tue, with much
warmer temps. Highs over the interior lowlands will likely reach into
the mid to upper 60s. There is a slight chance that a weak warm front
will brush the far northern coastal zones with some light rain later
tue. Pyle

Long term 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 High pressure over the pacific northwest will bring
vfr conditions through early this evening. However, an incoming
front will bring a period of rain and lowering CIGS overnight. A
mix of MVFR and ifr conditions appear likely to develop along
the coast between 00-06z Sunday and MVFR restrictions should
become fairly widespread inland between 06-12z Sunday.

Kpdx and approaches... High pressure over the pacific northwest
will bringVFR conditions through this evening. However, an
incoming front will bring a period of rain and lowering cigs
overnight with MVFR restrictions likely to develop between 06-12z
Sunday. /neuman

Marine A front dropping southeastward will bring small craft
advisory level wind gusts of 25 to 30 kt to the waters late this
afternoon and evening. The central oregon waters may have a hard
time reaching these thresholds, but will keep the advisory going
for now given they could still see a couple hours of 21 to 25 kt
gusts, but it admittedly looks marginal at best. High pressure
will then shift back over the waters Sunday and Monday and bring
more quiet weather. After a weak front skirts the waters late
Monday or early Tuesday, a summer-like northerly wind pattern
should develop for a couple days towards the middle of next week.

A westerly swell approaching 10 ft may impact the waters late in
the week, but confidence in this scenario is low. /neuman

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

Wa... None.

Pz... Small craft advisory for winds until 1 am pdt Sunday for
coastal waters from CAPE shoalwater wa to cascade head or
out 60 nm.

Small craft advisory for winds until 1 am pdt Sunday 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
TLBO3 - 9437540 - Garibaldi, Tillamook Bay, OR 45 mi51 min 53°F1023.3 hPa
SBEO3 - 9435380 - South Beach, OR 60 mi51 min WSW 5.1 G 7 47°F 55°F1024.7 hPa
NWPO3 - Newport, OR 61 mi81 min WSW 8 G 8.9 49°F 1024.5 hPa (+0.0)

Wind History for Garibaldi, OR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
McMinnville, McMinnville Municipal Airport, OR4 mi28 minWSW 910.00 miLight Rain55°F37°F53%1022.5 hPa
Salem, McNary Field, OR22 mi25 minWSW 810.00 miLight Rain59°F28°F32%1022.4 hPa
Aurora, Aurora State Airport, OR23 mi28 minWSW 610.00 miLight Rain58°F39°F51%1022.5 hPa

Wind History from MMV (wind in knots)
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Last 24hrCalmNW4W5NW6W4CalmCalmCalmCalmCalmW3CalmCalmSE434SE63CalmS6S8SW5W8SW9
1 day agoW7W5CalmCalmW5W4W3NW3CalmCalmNW4SW4CalmCalm3NE4SW44S4CalmCalm3W5SW3
2 days agoW9S5S7SW3SW9SW5SW4S4CalmSW4S3CalmSW6SW10SW8SW10W9NW13W12W8
G16
SW11W12W8NW11

Tide / Current Tables for Portland, Morrison Street Bridge, Oregon
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Portland
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Sat -- 02:58 AM PDT     2.63 feet Low Tide
Sat -- 06:01 AM PDT     Sunrise
Sat -- 07:36 AM PDT     5.82 feet High Tide
Sat -- 08:54 AM PDT     Moonrise
Sat -- 04:29 PM PDT     2.27 feet Low Tide
Sat -- 08:15 PM PDT     Sunset
Sat -- 08:30 PM PDT     4.40 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.43.12.82.62.93.74.85.75.75.14.33.93.83.63.22.72.32.32.93.74.34.343.7

Tide / Current Tables for St. Johns, Willamette River, Oregon - IGNORE HEIGHTS
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St. Johns
Click for MapNote: The Columbia River is subject to annual freshets. Short range predictions are available at local river forecast centers. The data for stations above Harrington Point apply only during low river stages. There is a tidal influence along most of the

Sat -- 05:18 AM PDT     1.77 feet Low Tide
Sat -- 06:01 AM PDT     Sunrise
Sat -- 08:52 AM PDT     9.61 feet High Tide
Sat -- 08:54 AM PDT     Moonrise
Sat -- 06:11 PM PDT     -1.26 feet Low Tide
Sat -- 08:15 PM PDT     Sunset
Sat -- 10:19 PM PDT     7.79 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
6.45.242.92.21.82.45.48.59.69.28.26.74.931.40.1-0.8-1.2-0.42.65.87.77.7

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 (23,6,7,8)
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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.