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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 7:14AM

Sunset 5:43PM

Sunday February 17, 2019 6:49 PM PST (02:49 UTC)

Moonrise 3:28PM

Moonset 6:05AM

Illumination 98%

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 172317 afdpqr area forecast discussion national weather service portland or 316 pm pst Sun feb 17 2019 Synopsis Plenty of clouds remain, but skies will gradually clear through this evening for most of the forecast area. This will set the stage for a chilly night with temperatures falling below freezing for the vast majority of the area by Monday morning. Clouds will increase for Monday as a very weak disturbance moves in from the pacific. This system may produce a few flurries or sprinkles Monday and Monday night, but any precipitation should be very light. A better-organized frontal system will spread more significant precipitation across the forecast area Tuesday. Snow levels will remain low, but likely just above the valley floors. Several more inches of snow are expected out of this system for the cascades. Short term Tonight through Wednesday... Sunbreaks developed across much of southwest washington and northwest oregon today, especially along the coast where skies have turned partly to mostly sunny. Krtx radar is quiet this afternoon, but based on visible satellite imagery it appears a few showers linger under radar scans across portions of lane and linn counties. Snow levels remain low... So most of these showers are probably falling as snow above 1000-1500 feet. Accumulation appears doubtful due to the hit-or-miss nature of these showers and marginal surface temps below the passes. Expect any lingering showers to dissipate as the Sun GOES down. The general clearing trend should continue this evening as high pressure builds southward into washington and oregon. There does appear to be a cold front at the head of this air mass; this front has moved southward from the okanagan across much of the columbia basin. Precipitation with the front has been scant and should generally remain so, though some easterly upslope flow may allow for some flurries or light snow to develop for hood river and eastern skamania counties late tonight into Monday. This has been shown well by the nam, though it appears a little overdone on qpf. Again, this should not amount to much, with any snow accumulation likely to amount to 1 inch or less. Models continue to hint toward very light precipitation developing across much of the forecast area Monday as the remnants of the cold front interact with a shortwave trough incoming from the pacific. Forcing is extremely weak over the CWA Monday and Monday night, but there is some weak isentropic lift combining with shallow instability (only up to 800-850 mb) per the 12z gfs. With seeder-feeder processes possibly coming into play, decided to mention occasional flurries or sprinkles for most of the forecast area Monday. Stronger isentropic lift gradually develops as warm advection increases ahead of the next low pressure system diving down from british columbia Monday night and Tuesday. This should cause precipitation to slowly increase through that period. There may be a brief period of lowland snow or rain snow mix as precipitation develops early Tuesday, but models suggest s-sw winds develop quickly as the low approaches and pressure gradients tighten between the incoming low and our higher pressure departing to the south. This should mitigate the threat of a significant valley snow event, with snow levels rising to around 1000-1500 feet by the time most models bring the main batch of precipitation associated with the incoming low front Tuesday afternoon. Robust onshore flow will likely rack up several more inches of snow for the cascades and foothills, where advisories may be needed. Valley rain and mountain foothill snow showers should persist into Wednesday as the low pressure system continues s-se across western

oregon and another lobe of low pressure tries to develop near the pac nw coast. However, the overall trend will be toward drying out later Wednesday as the next cold and dry high pressure system builds southward from british columbia. Weagle Long term Wednesday night through Sunday... The 12z GFS and 12z ecwmf have the area in a semi-moisture laden post-frontal environment from Wednesday night into Thursday morning. Thursday the pattern starts to shift as a ridge slowly becomes the dominant feature through Friday morning. Friday afternoon a shortwave trough will start to bring in the next slug of moisture. This is expected to stay around as a deeper trough comes in from the gulf of alaska to reinforce the all ready present moisture through Sunday. 850 mb temperatures look to hold in between -6c to -5c and a steady onshore flow pattern continue to signal minimal snow chances for the valley floor for the later part of the week. However, the models are showing the wind shifting into an offshore flow pattern towards the start of next week. If this wind shift does happen it could provide the needed push to bring flurries to lower elevations, but being well into the extended this trend could easily change with new data. 42 Aviation Mix of MVFR toVFR ceilings across the interior this afternoon, with the trend toward predominantlyVFR continuing this evening. However, expect a return to lower MVFR with pockets of ifr low stratus or fog in the more favored locations in the interior lowlands. Meanwhile, light precipitation - in the form of rain or snow - may develop across the coastal areas after 12z and possibly push into parts of the interior during the day Monday, but impacts should be minimal. Kpdx and approaches...VFR conditions continue through early tonight. However, expect that lower stratus may develop after 12z for possible MVFR conditions. Light precipitation may arrive early Monday, in the form of light rain or snow. Cullen Marine Weak low pressure is moving from north to south through the oregon coastal waters today, keeping winds well below advisory criteria across the waters. Weak high pressure begins to build later today, which will persist through much of this week. However, periodic low pressure systems are expected to move through from the northwest. At this point, the most significant of these looks to move through Tuesday night into Wednesday. This will bring the potential for some higher-end advisory strengths winds, or possibly gales, during this time period. Seas will hold around 10 feet this afternoon, before gradually dropping below 10 feet late this evening or overnight. Seas will remain below 10 feet through the next several days, but seas will build again more significantly with the system on late Tuesday early Wednesday. Expect seas to build to at least 15 feet and possibly approach 20 feet around midweek. cullen Pqr watches warnings advisories Or... None. Wa... None. Pz... Small craft advisory for hazardous seas until 10 pm pst this evening for coastal waters from CAPE shoalwater wa to florence or out 60 nm. Small craft advisory for rough columbia river bar until 4 pm pst this afternoon. 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	37 min	N 4.1 G 6	41°F	46°F		1025.4 hPa
WPTW1 - 9441102 - Westport, WA	21 mi	73 min	NW 8.9 G 8.9	42°F	45°F		1024.9 hPa
46211 - Grays Harbor, WA (036)	22 mi	49 min			47°F	8 ft
46243 - Clatsop Spit, OR - 162	30 mi	49 min			45°F	8 ft
ASTO3 - 9439040 - Astoria, OR	31 mi	31 min	Calm G 1	40°F	41°F		1024.8 hPa
46099	41 mi	179 min	NW 3.9	45°F			1024 hPa
46029 - COL RIVER BAR - 20NM West of Columbia River Mouth	44 mi	59 min	N 9.7 G 12	44°F	50°F	10 ft	1025.4 hPa (+1.6)	34°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	56 min	W 5	8.00 mi	Fair	43°F	35°F	74%	1025.3 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.
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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.