Friday, April3, 2020
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Marine Weather and Tides
McMinnville, OR

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 6:46AMSunset 7:45PM Friday April 3, 2020 10:49 AM PDT (17:49 UTC) Moonrise 1:16PMMoonset 3:46AM Illumination 81% 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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PZZ255 Coastal Waters From Cascade Head To Florence Or Out 10 Nm- Waters From Cascade Head To Florence Or From 10 To 60 Nm- 224 Am Pdt Fri Apr 3 2020
Today..W to nw wind 5 to 10 kt. Wind waves nw 1 ft at 4 seconds. NW swell 3 ft at 8 seconds.
Tonight..SW wind to 5 kt, becoming se 10 to 15 kt after midnight. Wind waves nw 1 ft at 4 seconds, shifting to the se 2 ft at 4 seconds. NW swell 3 ft at 8 seconds. Chance of rain after midnight.
Sat..E to se wind 10 to 15 kt. Wind waves ne 2 ft at 4 seconds. W swell 3 ft at 12 seconds. Rain likely.
Sat night..E to se wind 10 kt, becoming S 10 to 15 kt nearshore late. Wind waves E 2 ft at 4 seconds. W swell 3 ft at 10 seconds. Rain at times.
Sun..SW wind 10 to 15 kt in the morning, becoming nw 10 kt. Wind waves W 2 ft at 4 seconds. W swell 3 ft at 10 seconds.
Sun night..N wind 10 to 15 kt. Wind waves ne 2 ft at 4 seconds. W swell 3 ft at 9 seconds. Rain at times.
Mon..N wind 10 to 15 kt. Wind waves 3 ft. NW swell 6 ft.
Tue..N wind 10 to 15 kt. Wind waves 3 ft. NW swell 6 ft.
PZZ200 224 Am Pdt Fri Apr 3 2020
Synopsis for the southern washington and northern oregon coast.. Weak high pres over the region today. Low pres well offshore will approach the southern oregon coastal waters on Sat, then lift northeastward into western oregon early Sun. High pres will remain offshore into most of next week. A fast moving cold front will push across the region towards middle of next week, likely Wed night into Thu.


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 031704 AFDPQR

Area Forecast Discussion National Weather Service Portland OR 954 AM PDT Fri Apr 3 2020

SYNOPSIS. A cool and unsettled showery weather pattern will persist through Monday before a warming and drying trend takes hold next week.

SHORT TERM. Today through Sunday . Water vapor satellite imagery continues to reveal a longwave trough lingering across the Pacific Northwest, northern Rocky Mountain states and western Canada. A large closed upper level low pressure centered over British Columbia and Alberta will continue to result in shortwave troughs and vort maxes rotating south to southeastward into the Pacific Northwest and California over the next several days.

The first storm system is currently shifting from southwest British Columbia into eastern Washington. While the best instability and forcing is expected to remain well north and east of the region today, there is enough lingering low level instability and westerly flow to allow a few showers over the northeast Pacific to continue to shift onshore. As daytime heating ramps up over the next few hours, expect shower coverage to increase slightly inland. However, instability will become increasingly squashed from a lowering subsidence inversion. This will be in response to upper level heights temporarily building across the region in the wake of the aforementioned shortwave trough shifting from southwest British Columbia/eastern Washington into northern Idaho and Montana.

The next storm system of interest is a rather compact closed low pressure currently located near 140W and 47N via satellite imagery. Models are in general agreement it will slide southeastward and reach the northern California and southern Oregon coast Saturday morning. A secondary shortwave trough currently over the Gulf of Alaska will drop southward and help to eject the aforementioned low pressure northeastward across Oregon on Saturday. This will result in a broad area of light rain and mountain snow spreading northward late tonight and Sunday morning across northwest Oregon. Models have trended a bit higher with their snow levels tonight and Sunday morning, presumably due to an extensive mid and high level cloud deck overspreading the region overnight. While cannot completely rule out some light snow accumulations on grassy surfaces around 500- 1000 feet, this should not impact travel where the bulk of the population lives across northwest Oregon.

It should be noted that there may be just enough cooling aloft and late day clearing to allow some surface instability to generate a few showers across Douglas County before spreading northeastward into Lane and Linn Counties late Saturday afternoon and early evening. While instability does not appear sufficient for thunderstorms based on model soundings and projected high temperatures, it could still end up somewhat close. Will examine this more closely with the afternoon forecast package.

It appears likely weak surface low pressure over the southern Oregon coast will shift northward into the Willamette Valley and/or the norther Oregon coast Saturday night. This will result in showers likely persisting across parts of the CWA Saturday night, but exactly where the heaviest QPF will resides remains more uncertain.

Otherwise, the aforementioned shortwave trough dropping southward out of the Gulf of Alaska today and Saturday will shift southeastward towards northern California on Sunday. In doing so, cooler temperatures aloft will work their way over the region, which should result in another round of showers bubbling up across the region Sunday afternoon and early evening. There are also hints of a band of precipitation setting up across northwest Oregon Sunday night that could result in an area of more persistent rain and mountain snow, but substantial differences in the placement and intensity of the band of precipitation exist between the models.

Models continue to suggest shortwave ridging will begin to shift over the region on Monday. While there should be enough lingering instability to generate another round of widely scattered showers in the afternoon and early evening hours on Monday , it appears Monday will be the beginning of a warming and drying trend. /Neuman

LONG TERM. Monday night through Thursday . The upper low continues to drift south off the west coast through Thursday. By late Monday it should be far enough south for any wrap around moisture to bring pcpn to our area. A ridge of high pressure should build in Tuesday through Thursday for a dry period. Ensemble models currently in agreement with this occurring. However with recent model variability will take a wait and see approach.

AVIATION. Cool northwesterly flow aloft will continue today as another weak disturbance drifts inland. This will bring spotty showers through this afternoon with occasional MVFR possible. Expect remaining low stratus in the central and south valley to lift and scatter over the next couple of hours with mainly VFR conditions through tonight under scattered to broken mid and high clouds. Another disturbance then looks to approach from the south tonight resulting in an increasing chance for rain and MVFR conditions late tonight for far southern portions of the forecast area and spread north through Saturday morning.

PDX AND APPROACHES . Spotty light showers could result in brief periods of MVFR conditions through this afternoon. Otherwise, expect VFR conditions through tonight with scattered to broken mid and high clouds. Expect to see an increasing chance for rain and MVFR conditions Saturday morning as another disturbance moves across the region from the south. /64

MARINE. Rather tranquil conditions expected across the waters for the next several days, with north to northeasterly winds less than 15 kt and seas in the 3 to 5 ft range. Low pressure well offshore will approach the south Oregon coast Sat night into Sun, then lift northward along the coast, before shifting inland over northwest Oregon on Sun. May see uptick in southerly winds along the coast south of Cascade Head, but confidence not all that good yet. Even so, winds may get up to 20 kt for a time early Sun for areas close to shore south of Newport.

High pressure will remain offshore to start next week, with weak lower pressure inland over the Pac NW. This will bring west to northwest winds 10 to 15 kt, with seas 4 to 6 ft. /Rockey

PQR WATCHES/WARNINGS/ADVISORIES. OR . None. WA . None. PZ . None.



Interact with us via social media: www.facebook.com/NWSPortland www.twitter.com/NWSPortland

This discussion is for Northwest oregon and Southwest Washington from the Cascade crest to 60 nm offshore. This area is commonly referred to as the forecast area.


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TLBO3 - 9437540 - Garibaldi, Tillamook Bay, OR 45 mi49 min 49°F1021.8 hPa (-0.6)
SBEO3 - 9435380 - South Beach, OR 60 mi49 min E 6 G 8 40°F 50°F1021.8 hPa (-0.6)
NWPO3 - Newport, OR 61 mi49 min E 5.1 G 7 41°F

Wind History for Garibaldi, OR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
McMinnville, McMinnville Municipal Airport, OR4 mi56 minN 010.00 miOvercast39°F36°F89%1022 hPa
Salem - McNary Field, OR22 mi53 minS 410.00 miOvercast39°F36°F89%1021.8 hPa
Aurora State Airport, OR23 mi56 minVar 310.00 miOvercast40°F36°F86%1022.4 hPa

Link to 5 minute data for KMMV

Wind History from MMV (wind in knots)
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Last 24hrSW4CalmS11
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NW11--W13----W7W7W5W4W3CalmCalmCalmN3CalmW5N3CalmCalmCalmCalm
1 day agoS11S11S754SW7Calm3NW4CalmCalmNW3CalmW3CalmCalmCalmCalmCalmCalmW3CalmCalmSW4
2 days agoSW11SW9SW12SW10W14SW11W11W13W8SW6SW7SW10S4SW3SW8S7SW5S9SW6SW7CalmSE43S6

Tide / Current Tables for Portland, Morrison Street Bridge, Oregon
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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 St. Johns, Willamette River, 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
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wmap_P
GEOS 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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Portland, OR (13,3,4,5)
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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 numerous 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.