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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 7:15AM

Sunset 4:43PM

Tuesday November 13, 2018 9:29 PM PST (05:29 UTC)

Moonrise 12:34PM

Moonset 9:53PM

Illumination 36%

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 140354 afdpqr area forecast discussion national weather service portland or 755 pm pst Tue nov 13 2018 Synopsis Offshore flow through the gorge will continue to weaken tonight and Wednesday. A weak frontal system passes over the area tonight and Wednesday, but precipitation will favor the north half. Another weak impulse drops southeast from british columbia late Thursday night and Friday morning. Strong high pressure returns over the weekend and is expected to hold into early next week. This will also result in another round of east wind through the columbia gorge. Short term Tonight through Friday... No changes. Previous discussion follows. East wind continues through the gorge this afternoon, but not quite as strong as early this morning. At 21z the kttd-kdls gradient was around -6.0 mb. This was enough to produce 55 mph gusts at crown point and 40-45 mph at corbett. 18z NAM suggests the kttd-kdls gradient will drop to around -3.5 mb by 12z wed, which is several hours slower than the 12z version. This trend is more plausible considering the stratus field piled up in the central gorge and upper hood river valley, which is indicative of cross-cascade flow. Kttd profiler indicates a rapid weakening of the primary east wind core late this afternoon. Another added forecast twist is the potential for california wildfire smoke to be over the area. The 12z hrrr 6000 ft agl smoke product indicates some degree of drift smoke to be over the region tonight. The strengthening SW 850 mb flow will push it east late tonight and wed, but higher concentrations are possible over the south part of the area, such as lane county. Less cloud cover tonight and minimal to no wind could lead to short-term periods of moderate to unhealthy for sensitive groups air quality categories. Although not in the forecast or grids, would not be surprised to see isolated flurries fall out of the stratus field in the central gorge and upper hood river valley. Water vapor satellite imagery shows a weakening low level front just inside 130w at 21z that will likely stall just off the washington coast late this evening. The 12z nam was a little slower with it, which makes sense as it enounters strong surface high pressure. However, the 850 mb sw-w flow strengthens to 20-30 kt tonight and wed. This should be enough to help scour the cold air in the central gorge and upper hood river valley. Rain still appears very unlikely across our southern zones, including places like corvallis and eugene. With the bulk of the upper level support moving eastward across southern canada wed, the front should stall out across our northern zones and fall apart Wednesday night into early Thursday with rain chances decreasing fairly quickly during that time. H5 high pressure will be centered along 130-135w Thu night. This is far enough offshore to allow short-waves within northwest flow aloft to be in close proximity to the area. One such feature slides across ne washington 12z fri. Models suggest there may be enough cyclonic curvature to the flow for a threat of precip in SW washington and the north oregon cascades from mt. Hood northward. Southern interior valleys will likely see areas of fog Thu night through Fri morning. The upper ridge amplifies Friday afternoon, which will result in light north low-level flow. Friday could be the start of air quality issues due to weak transport wind and minimal surface flow.

Fortunately, the 850-700 mb mean layer flow Fri will be nw-n. This would not be favorable for transport of california smoke into the forecast area. Weishaar Long term Friday night through Tuesday... No changes. Previous discussion follows. Deterministic models are in agreement that a sharp upper level ridge will remain over the forecast area from Friday night into Saturday resulting in dry conditions. Both the gfs and ECMWF show precipitation arriving along the coast by Monday night as a weak front pushes on shore. This precipitation pattern looks to stay in the extended forecast through Tuesday and into Wednesday. Weak winds in the willamette valley allow for the persistence of early morning fog and temperatures trend slightly downward and stay within seasonal norms. -bphillips && Aviation Vfr conditions to begin with this evening, but a slow moving cold front moving SE across NW oregon over the next 24 hours will bring lowering CIGS and chances for light rain. CIGS along the north coast will be the first to lower, expected to drop into MVFR category by 09z. Further to the south and east CIGS will be slower to come down, as late as 18z to 00z in the south willamette valley. The likelihood of CIGS dropping into MVFR category also decreases to the south and east, although all locations in NW oregon stand at least a chance of doing so. Pdx and approaches...VFR conds to continue through at least 12z wed morning, and perhaps longer. After 12z there is an increasing chance to see MVFR CIGS settle in. Expect low endVFR to MVFR CIGS to then continue past 00z Wed afternoon. Marine No changes. Previous discussion follows. An approaching cold front has slowed from earlier forecasts. SCA level winds of 21+ kts are sitting just outside the northwest corner of our waters per an earlier satellite derived wind pass. Still expect gusts around 25 kt for tonight across the northern waters, but have delayed the onset of the inner waters until about mid-evening. Have also delayed the frontal passage by a few hours. Now expect the front will move onshore around mid-day Wednesday with winds becoming light westerly behind the front. High pres will build over the waters for Thu and fri, bringing a period of northerly winds. Then more offshore flow is looking increasingly likely next weekend but not especially strong at this point. Seas will remain 5 ft then build into the 7 to 9 ft range tonight with the front. A trailing dynamic swell train will then briefly bring westerly seas near 10 ft late Wednesday night and early Thursday. Seas than drop to between 5 and 8 feet for several days thereafter. Jbonk Pqr watches warnings advisories Or... None. Wa... None. Pz... Small craft advisory for winds until 10 am pst Wednesday for waters from CAPE shoalwater wa to cascade head or from 10 to 60 nm. Small craft advisory for winds until noon pst Wednesday for coastal waters from CAPE shoalwater wa to cascade head or out 10 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	47 min	ESE 2.9 G 4.1	49°F	50°F		1025.6 hPa
WPTW1 - 9441102 - Westport, WA	21 mi	53 min	S 8 G 12	49°F	51°F		1025 hPa
46211 - Grays Harbor, WA (036)	22 mi	29 min			54°F	5 ft
46243 - Clatsop Spit, OR - 162	30 mi	29 min			52°F	4 ft
ASTO3 - 9439040 - Astoria, OR	31 mi	41 min	E 2.9 G 5.1	48°F	52°F		1026.1 hPa
46029 - COL RIVER BAR - 20NM West of Columbia River Mouth	44 mi	39 min	S 16 G 19	54°F	54°F	5 ft	1025.6 hPa (+0.0)	47°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	36 min	ENE 4	6.00 mi	Light Rain Fog/Mist	49°F	46°F	90%	1025.8 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 (0,6,7,8)

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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.