Sunday, December8, 2019
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Marine Weather and Tides
Bay View, WA

Version 3.4
NOTICE
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.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 7:47AMSunset 4:17PM Sunday December 8, 2019 4:35 AM PST (12:35 UTC) Moonrise 2:44PMMoonset 3:44AM Illumination 88% 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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PZZ133 Northern Inland Waters Including The San Juan Islands- 240 Am Pst Sun Dec 8 2019
Today..NW wind 5 to 15 kt. Wind waves 2 ft or less.
Tonight..SE wind to 10 kt. Wind waves 1 ft or less.
Mon..NE wind to 10 kt. Wind waves 1 ft or less.
Mon night..Light wind becoming E to 10 kt after midnight. Wind waves 1 ft or less.
Tue..SE wind 15 to 25 kt easing to 10 to 20 kt in the afternoon. Wind waves 2 to 4 ft.
Tue night..S wind 5 to 15 kt. Wind waves 2 ft or less.
Wed..S wind 10 to 20 kt becoming se 20 to 30 kt. Wind waves 1 to 3 ft building to 3 to 5 ft.
Thu..S wind 15 to 25 kt easing to 5 to 15 kt. Wind waves 2 to 4 ft subsiding to 2 ft or less.
PZZ100 240 Am Pst Sun Dec 8 2019
Synopsis for the northern and central washington coastal and inland waters..Weak low pressure today will give way to weak high pressure on Monday. A front will reach the coastal waters on Tuesday and weaken as it moves inland Tuesday night. A stronger front will approach the area on Wednesday and move onshore Wednesday night and Thursday.


7 Day Forecast for Marine Location Near Bay View, WA
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location: 48.48, -122.53     debug


Area Discussion for - Seattle, WA
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FXUS66 KSEW 081129 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 330 AM PST Sun Dec 8 2019

SYNOPSIS. An upper ridge will build offshore today for dry weather through early Tuesday with the best chances for sunshine being on Monday. The next system should slide through later Tuesday with unsettled conditions persisting thereafter.

SHORT TERM /TODAY THROUGH TUESDAY/. Current satellite and radar imagery show that system responsible for precip yesterday is out of the area with W WA now falling under the jurisdiction of an incoming upper level ridge still out over the offshore waters. Current obs show sufficient low level moisture is in place to keep low clouds over much of the area with areas of fog/reduced visibilities in some locations.

This upper level ridge will keep conditions dry today . but any sort of clearing is going to be slow work at best. Given the widespread low clouds/fog this morning . expecting cloudiness to linger most of the day . although the mountains may see some clearing as the day progresses. This ridge will be the main weather factor throughout the short term as dry conditions persist into Monday and early Tuesday. Clouds should give way to some breaks of sunshine during the day Monday . mostly for locations east of Puget Sound. The western half of the CWA will start to see clouds associated with the next weather system start to roll in which may limit the amount of sun they get. The next system makes its way to the coast by mid to late Tuesday morning but really doesn't make its way inland until Tuesday afternoon. Both ECMWF and GFS do not show this front being of any particular note and the ensemble mean leans toward that conclusion as well showing pretty minimal QPF values associated with its passage. Neither model has the system holding together very well and has a weak shortwave ridge in place over W WA by Tuesday night.

Lowland high temps throughout the short term will remain pretty static . generally in the upper 40s. Overnight lows will not see very much variation either . sitting in the upper 30s to around 40.

LONG TERM /WEDNESDAY THROUGH SATURDAY/. Models agree on a shortwave ridge for early Wednesday . although the ECMWF is more progressive on kicking it out and getting the next system onto the coast by late Wednesday morning . inland by Wednesday evening. The GFS is slower with the system hitting the coast in the afternoon and pushing inland overnight. Most of the ensemble members fall somewhere in between causing any forecast solution to get lost in the spaghetti.

Beyond this initial disagreement . models come back in line regarding the active pattern for the remainder of the forecast period as a broad upper level trough sets up over the Pac NW. This will shuttle in a series of systems and while both deterministic and ensemble models show some dry breaks . the overall pattern will be wet.

Temps in the long term do not waver much from those in the short term with the lowlands generally seeing high temps in the upper 40s to around 50 while overnight lows will sit generally in the upper 30s to lower 40s. SMR

AVIATION. North northwesterly flow aloft into Monday with upper level ridge offshore. Light flow in the lower levels with flat surface gradients. Air mass moist and stable.

Widespread ceilings below 1000 feet this morning with areas of visibility 1-3sm in fog and isolated visibility 1/2sm or less in fog. With little flow in the lower levels improvement will be slow with ceilings lifting to 1000-2000 feet and visibility 3-5sm around 20z. Visibility restrictions gone by 22z but ceilings remaining MVFR into early Monday morning. Ceilings lowering back down to below 1000 feet in most places after 09z Monday.

KSEA . Ceilings below 1000 feet and visibility 2-4sm in fog until around 20z. Ceilings lifting to 1000-2000 feet after 20z with no visibility restrictions. MVFR ceilings continuing into early Monday morning. Variable winds 6 knots or less. Felton

MARINE. Weak low pressure today will give way to high pressure by Monday with light winds. A front will approach the area on Tuesday and weaken over the area Tuesday night. Another stronger front should reach the area Wednesday night and push inland on Thursday.

HYDROLOGY. River flooding is unlikely for the next 7 days.

SEW WATCHES/WARNINGS/ADVISORIES. WA . None. PZ . None.



www.weather.gov/seattle


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PBFW1 - Padilla Bay Reserve, WA 3 mi65 min N 5.1 46°F 1014 hPa46°F
46118 17 mi40 min 43°F 1009.1 hPa43°F
SISW1 - Smith Island, WA 19 mi25 min NNW 7 G 8 47°F 1014.9 hPa45°F
FRDW1 - 9449880 - Friday Harbor, WA 26 mi59 min 48°F1014.2 hPa
PTWW1 - 9444900 - Port Townsend, WA 28 mi53 min W 2.9 G 5.1 48°F 49°F1014.9 hPa
CHYW1 - 9449424 - Cherry Point, WA 29 mi47 min 1014.5 hPa
CPMW1 29 mi53 min NNW 5.1 G 7 46°F
CPNW1 29 mi83 min NNW 6 G 7 46°F
46088 - New Dungeness, WA (Hein Bank) 36 mi25 min NNW 5.8 G 7.8 48°F 48°F1015.6 hPa46°F
46125 40 mi34 min 48°F 1013.6 hPa47°F

Wind History for Friday Harbor, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Burlington/Mount Vernon, Skagit Regional Airport, WA6 mi60 minNNW 52.00 miFog/Mist48°F46°F94%1014.2 hPa
Whidbey Island Naval Air Station - Ault Field, WA10 mi1.7 hrsNNW 32.00 miFog/Mist49°F46°F90%1014.8 hPa
Bellingham, Bellingham International Airport, WA21 mi42 minN 07.00 miOvercast47°F42°F83%1015 hPa

Link to 5 minute data for KBVS

Wind History from BVS (wind in knots)
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E4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmNW3NW3CalmCalmCalmCalmNW4NW7NW5
1 day agoN4CalmCalmCalmCalmCalmCalmNW4CalmNW5CalmE3E7CalmE3CalmCalmNW4CalmCalmCalmCalmCalmCalm
2 days agoNW7NW6NW4NW6CalmNW3NW4N4CalmNW3NW4NW3CalmNW3CalmCalmCalmCalmCalmN4NW4CalmNW4NW3

Tide / Current Tables for Swinomish Channel Entrance, Padilla Bay, Washington
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Swinomish Channel Entrance
Click for Map
Sun -- 03:25 AM PST     6.46 feet High Tide
Sun -- 03:43 AM PST     Moonset
Sun -- 07:48 AM PST     Sunrise
Sun -- 08:08 AM PST     5.11 feet Low Tide
Sun -- 01:31 PM PST     8.39 feet High Tide
Sun -- 02:43 PM PST     Moonrise
Sun -- 04:15 PM PST     Sunset
Sun -- 09:15 PM PST     0.58 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.955.96.46.46.15.75.35.15.35.96.87.78.38.37.86.85.33.62.11.10.60.81.6

Tide / Current Tables for Guemes Channel, West entrance of, Washington Current
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Guemes Channel
Click for MapFlood direction 95 true
Ebb direction 255 true

Sun -- 12:28 AM PST     0.67 knots Max Flood
Sun -- 02:21 AM PST     -0.00 knots Slack
Sun -- 03:44 AM PST     Moonset
Sun -- 05:43 AM PST     -0.86 knots Max Ebb
Sun -- 07:49 AM PST     Sunrise
Sun -- 09:04 AM PST     0.00 knots Slack
Sun -- 10:50 AM PST     0.65 knots Max Flood
Sun -- 12:29 PM PST     -0.00 knots Slack
Sun -- 02:44 PM PST     Moonrise
Sun -- 04:15 PM PST     Sunset
Sun -- 05:55 PM PST     -2.77 knots Max Ebb
Sun -- 10:15 PM PST     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.60.60.2-0.2-0.6-0.8-0.8-0.7-0.5-00.50.60.3-0.3-1-1.6-2.2-2.6-2.8-2.5-2.1-1.3-0.30.6

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 Seattle, WA (7,2,3,4)
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Ground Weather Radar Station Seattle/Tacoma, WA
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weather_mapweather_map weather_map

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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.