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Marine Weather and Tides Rainier, OR Version 3.4

What's New / NOTES 10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome. 10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

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Sunrise 5:27AM

Sunset 8:50PM

Saturday May 25, 2019 4:44 AM PDT (11:44 UTC)

Moonrise 12:49AM

Moonset 10:38AM

Illumination 61%

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.

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7 Day Forecast for Marine Location Near Rainier, OR

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Area Discussion for - Portland, OR

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Fxus66 kpqr 250957 afdpqr area forecast discussion weather service portland or 255 am pdt Sat may 25 2019 Synopsis Cool and showery weather contiues today as another upper level low moves south through the pac nw. Snow levels will be down to the higher cascades passes today, although no significant accumulations are expected. Warmer weather is expected Sun and mon as ridging over the NE pac builds into the region. However, there will be potential for cascades thunderstorms on Sunday and Monday. Short term Today through Monday... Satellite images show Friday's upper low dropping down into northeast california early this morning, but with another rapidly moving down the british columbia coast. Surface observations showed a few sprinkles across the region, but overall showers showing up on radar were almost non- existent. With continued low level onshore flow today, low levels will remain moist, but model time-height cross sections of moisture show deeper moisture arriving this afternoon with the next upper low. With deep moisture showing up, expect showers to become more widespread during the day today, and also likely heavier than most of those experienced yesterday. Onshore flow ahead of the low will enhance the precipitation later today over west facing terrain, especially on and near the west slopes of the cascades. Similar to yesterday, temperatures will be below normal with the clouds, onshore flow and cool pool aloft moving across late in the day. As the low continues to drop south down the californai coast tonight, the main chances for showers will also sink south out of the region. By Sunday models consistent in showing the low level flow becoming more northerly and 850 mb temperatures quickly rebounding back up to around 8c by 00z Monday. This should result in a mostly dry day for the western part of the forecast area, with valley temperatures climbing back into the 70s. A northeast mid level flow and instability moving in from east of the cascades will bring a chance for showers and thunderstorms initially to the cascades. The northeast steering flow however suggests some threat for showers and thunderstorms to drift west into the valleys late in the afternoon to evening. Monday present a similar situation to Sunday, but with the upper low shifting east to utah and arizona. This effectively turns the mid level flow more northerly over the forecast area. Some instability remains over the cascades Monday, keeping a chance for showers and thunderstorms going, but the steering flow makes it less likely to see the showers drift west of the cascades. Perhaps a couple degrees of warming can be expected Monday, but a continuation of low level onshore flow is likely to hold valley temperatures in the 70s again. Long term Monday night through Friday... No change. Previous discussion follows. The broad upper-level ridge that has been positioned off the west coast finally shifts inland into british columbia on Monday. Because it will be so far north, this will allow for a shortwave trough to slide just to our south on Monday night into Tuesday. This brings showers and perhaps a few evening thunderstorms to the cascades. Chance for showers comes to an end after midnight Monday night. Another shortwave passes to our south on Tuesday, but there is only a slight chance of some wrap-around precipitation to clip our lane county cascades Tuesday afternoon and evening. During the latter half of next week the forecast becomes more difficult as the models don't have a great handle on the pattern until Friday when there's a fairly good signal that a zonal flow pattern is setting up for next weekend. -mccoy && Aviation As of 0930z, the forecast area was in between

weather systems with generalVFR conditions inland and MVFR along the coast. Expect this to persist through about 15z, with occasional ifr in periods of drizzle along the coast. Next low pressure system moving in from the north will increase rain or shower coverage across the forecast area by midday, continuing through the afternoon. During this time CIGS will likely lower to MVFR inland as rain becomes steadier. Coastal areas may see more of a showery mode to precipitation, as they will be closer to the cold pool aloft and thus less stable. Expect rain to slowly taper off from north to south overnight, but MVFR is likely to linger for most of the forecast area through at least 06z this evening. Kpdx and approaches...VFR CIGS in the 4000-5000 ft range early this morning are expected to gradually deteriorate to MVFR in increasing -ra by afternoon, with fairly steady -ra possible for the afternoon hours. Precipitation is expected to slowly taper off from north to south this evening, though MVFR CIGS are likely to persist. Weagle Marine Seas appear to have reached their peak across most of our waters overnight, with 10 to 13 ft seas due to fresh swell from our burst of n-nw wind Friday and Fri night. Winds have been gradually easing and backing overnight; expect this trend to continue as low pressure coming from the north displaces the stronger northerly gradients into the offshore waters today. Still, our outermost waters... About 40-50 nm or more offshore... may continue to experience gusts 25-30 kt through this afternoon. The proximity of the stronger n-nw winds will likely keep seas above 10 ft into this evening for our outermost waters, while the lack of windwave contribution allows seas closer to the coast to gradually drop below 10 ft today. A surface thermal trough along the south oregon coast is forecast to strengthen sun, which will result in 20-25 kt gusts for pzz275 and possibly into pzz255 Sun afternoon. Weaker gradients Sun night through early next week will generally result in wind speeds 15 kt or less. Seas eventually fall to around 5 ft Sun night or Mon as winds remain moderate Monday and Tuesday. Weagle weishaar Pqr watches warnings advisories Or... None. Wa... None. Pz... Small craft advisory for winds until 4 pm pdt this afternoon for waters from CAPE shoalwater wa to florence or from 10 to 60 nm. Small craft advisory for hazardous seas until 8 pm pdt this evening for waters from CAPE shoalwater wa to cascade head or from 10 to 60 nm. Small craft advisory for hazardous seas until 5 pm pdt this afternoon for coastal waters from CAPE shoalwater wa to florence or out 10 nm. Small craft advisory for hazardous seas until 11 pm pdt this evening for waters from cascade head to florence or from 10 to 60 nm. Interact with us via social media:

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Weather Reporting Stations

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Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
LOPW1 - 9440422 - Longview, WA	0 mi	45 min			58°F		1016.3 hPa (-0.4)
ASTO3 - 9439040 - Astoria, OR	44 mi	45 min	SSE 5.1 G 7	51°F	58°F		1015.2 hPa (-0.4)
46243 - Clatsop Spit, OR - 162	63 mi	45 min			56°F	10 ft

Wind History for Longview, WA

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Airport Reports

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Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Southwest Washington Regional Airport, WA	3 mi	49 min	N 0	10.00 mi	Overcast	52°F	48°F	86%	1017 hPa
Scappoose Industrial Airpark, OR	23 mi	52 min	N 0	10.00 mi	Overcast	51°F	46°F	83%	1015.9 hPa

Wind History from KLS (wind in knots)

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Tide / Current Tables for Knappa, Knappa Slough, Columbia River, Oregon

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Tide / Current Tables for Vancouver, Columbia River, Washington (dubious accuracy)

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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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East

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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.