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Marine Weather and Tides Bay Center, WA 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 5:30AM

Sunset 8:53PM

Wednesday May 22, 2019 6:36 PM PDT (01:36 UTC)

Moonrise 11:42PM

Moonset 7:45AM

Illumination 84%

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 Bay Center, WA

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Area Discussion for - Portland, OR

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Fxus66 kpqr 222103 afdpqr area forecast discussion national weather service portland or 200 pm pdt Wed may 22 2019 Synopsis Warmer temperatures, but with a continued chance for showers and thunderstorms mainly over and near the cascades, will continue through Thursday as a broad upper level trough of low pressure remains over the interior western states. On Friday another upper level low pressure system will move down the british columbia coast and over the pacific northwest, bringing cooler temperatures and renewed chances for showers lasting through most of the weekend. Short term Tonight through Saturday... A trough of low pressure over the southwest u.S. Wednesday afternoon will continue to bring a moist unstable air mass west into the cascades this evening. Radar in the early afternoon showed the first showers developing over the cascades, as shown in most of the mesoscale models. As storms devleop this afternoon, a southwest motion will tend to allow for some showers or storms to drfit out into the willamette valley, so in addition to the main threat for showers and storms over the cascades will hang on to lower pops immeditately to the west of the cascades. A ridge of high pressure aloft offshore is expected to press closer to the coast Thursday, while the upper low lifts north through utah. This will leave the cascades open to the chances for more wrap- around showers and thunderstorms Thursday, but areas further west will see a gradual stabilization of the air mass. An extensive deck of low clouds is seen on satellite pictures this afternoon along and off the coast in the more stable air mass under the high pressure. The low level flow remains modestly onshore through Thursday morning, so marine clouds are expected to remain entrenched along the coast through Thursday morning, and will leave a chance for some drizzle there as well. Clouds over the interior however are likely to remain more patchy closer to the upper low over the interior western states. Under rising heights aloft 850 mb and surface temperatures will warm Thursday. Models in good agreement showing another upper low sliding down the britich columbia coast Friday. A more westerly low level flow ahead of it will bring a deepening marine air mass into the region, resulting in increased clouds and cooler temperatures for Friday and Saturday. While the moisture isn't shown as being particularly deep in model soundings, under 10k feet, it should be sufficient when coupled with the upper low moving in to bring scattered showers to most of the area Friday through Saturday. Long term Saturday night through Wednesday... The models agree on the general trend throughout the extended. A low will slowly track over the forecast area through Sunday leaving a wake of shortwaves that will keep chances of precipitation within the forecast through Monday night. The euro is leaning more towards the wetter side as its low has a more organized circulation and stronger frontal formation, this results in more rain. The forecast however, is leaning more towards the GFS which still shows precipitation but not as heavy. Both models show heavier precipitation in the cascades Monday night. A high pressure moving in from off-shore Tuesday will reduce precipiation for the rest of the extended. A notable feature will be the inversions that occur Sunday through Tuesday in the early morning hours (around 5am); this will increase temperatures above 1500ft by roughly 5 degrees. -bphillips Aviation As of 21z MVFR stratus covered the coast and into the lower coastal river valleys, with localized ifr along the

beaches. Inland stratus has morphed into more of a stratocumulus layer, with CIGS generally 035-050. The moderate onshore low- level flow will maintain MVFR conditions for the coastal sites through tonight. A deeper marine layer overnight will result in slightly higher cigs, but still in the MVFR category. There is the possibility of ifr through Thu morning. Will need to watch for remnant convective activity drifting off the north oregon cascades into the north cascade foothills and possibly east portions of the north willamette valley and clark county in sw washington early this evening. Any thunderstorm threat through the evening should remain over the higher cascades. Marine stratus spreads inland overnight, but CIGS may end up at low-end vfr. Will go with CIGS 025 for the interior TAF sites to hedge on the side of caution. Kpdx and approaches... Morning MVFR stratus has become more of a low-endVFR stratocumulus deck early this afternoon. There is a small threat of showers for the terminal and vicinity from 01z to 03z thu. Models suggest this may be convective debris from cells drifting off the cascades. Marine stratus returns late tonight. Will go with CIGS around 025, but there is the possibility cigs may end up at low-endVFR. Weishaar Marine 12z models continue to show small craft advisory level winds speeds over the outer waters through at least 18z thu. The strongest speeds will be beyond 30 nm. Not expecting small craft advisory speeds for the inner waters, but there is the potential for 25 kt gusts in pzz255 late this afternoon through tonight. This northerly wind pattern continues through at the weekend. Wind speeds look to ease Thu night and Fri as another upper low drops south from british columbia. This low will deepen the marine layer. However, northwest wind behind the departing system may produce gusts to 30 kt across the northwest portion of pzz270 late Thu night and fri. It appears the gradient weakens over the weekend, with any small craft advisory wind potential confined to the very far outer waters. Seas will remain around 10 ft through Thu morning. Meanwhile, the dominant period is forecast to shorten from 10 to 11 seconds today, to 8 to 9 seconds by tonight. Although wave heights fall just under 10 ft Thu afternoon, square-sea conditions can be expected. Will extend the small craft advisory for hazardous seas through at least 18z thu. Model guidance shows seas exceeding 10 ft again Fri as the next low pressure area along the british columbia coast drops south. Latest spectral guidance has seas peaking around 14 ft in the northern outer water. Seas then fall just below 10 ft Sat and look to continue falling through Sun to around 4 to 5 feet. Weishaar Pqr watches warnings advisories Or... None. Wa... None. Pz... Small craft advisory for winds until 11 am pdt Thursday for waters from CAPE shoalwater wa to florence or from 10 to 60 nm. Small craft advisory for hazardous seas until 11 am pdt Thursday for coastal waters from CAPE shoalwater wa to florence or out 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
TOKW1 - 9440910 - Toke Point, WA	5 mi	55 min	W 8 G 9.9	55°F	56°F		1017.7 hPa
WPTW1 - 9441102 - Westport, WA	21 mi	61 min	WNW 8.9 G 9.9	54°F	55°F		1017.5 hPa
46211 - Grays Harbor, WA (036)	22 mi	37 min			57°F	10 ft
46243 - Clatsop Spit, OR - 162	30 mi	37 min			56°F	9 ft
ASTO3 - 9439040 - Astoria, OR	31 mi	49 min	W 11 G 13	56°F	59°F		1017.2 hPa
46099	41 mi	107 min	NW 9.7	54°F			1016.5 hPa
46029 - COL RIVER BAR - 20NM West of Columbia River Mouth	44 mi	47 min	NNW 9.7 G 14	55°F	56°F	9 ft	1018.1 hPa (+0.0)	51°F

Wind History for Toke Point, WA

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Airport Reports

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Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Hoquiam, Bowerman Airport, WA	24 mi	44 min	W 8	5.00 mi	Fog/Mist	57°F	53°F	87%	1017.8 hPa

Wind History from HQM (wind in knots)

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Tide / Current Tables for Bay Center, Palix River, Willapa Bay, Washington

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Tide / Current Tables for Grays Harbor Entrance, Washington Current

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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 (21,6,7,8)

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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.