Thursday, April2, 2020
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Marine Weather and Tides
Bainbridge Island, WA

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
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.

Sunrise 6:43AMSunset 7:43PM Thursday April 2, 2020 10:45 AM PDT (17:45 UTC) Moonrise 11:52AMMoonset 3:07AM Illumination 72% Phase: Waxing Gibbous; Moon at 10 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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PZZ135 Puget Sound And Hood Canal- 825 Am Pdt Thu Apr 2 2020
Today..S wind 5 to 15 kt becoming sw 10 to 20 kt in the afternoon. Wind waves 1 to 3 ft. A slight chance of showers in the morning then a chance of showers in the afternoon.
Tonight..NW wind 10 to 20 kt becoming sw 5 to 15 kt after midnight. Wind waves 1 to 3 ft. A slight chance of showers.
Fri..S wind 5 to 15 kt becoming sw 10 to 20 kt in the afternoon. Wind waves 1 to 3 ft. A chance of showers.
Fri night..NW wind 5 to 15 kt becoming sw after midnight. Wind waves 2 ft or less.
Sat..S wind to 10 kt becoming N in the afternoon. Wind waves 1 ft or less.
Sat night..N wind 5 to 15 kt. Wind waves 2 ft or less.
Sun..Light wind. Wind waves less than 1 ft.
Mon..Light wind becoming nw to 10 kt. Wind waves 1 ft or less.
PZZ100 825 Am Pdt Thu Apr 2 2020
Synopsis for the northern and central washington coastal and inland waters..A weak frontal boundary will hang across the interior waters through today, with high pressure offshore. From Friday through the weekend, the storm track will be oriented just offshore and into northern california, allowing for benign marine conditions across washington.


7 Day Forecast for Marine Location Near Bainbridge Island city, WA
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location: 47.62, -122.52     debug


Area Discussion for - Seattle, WA
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FXUS66 KSEW 021559 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 900 AM PDT Thu Apr 2 2020

SYNOPSIS. Lowland rain and mountain snow will continue off and on through Friday as a couple of weak systems pass through the area. Brief dry conditions for Saturday before rain returns for Sunday and possibly into Monday. Drier and warmer conditions are possible by the middle of next week.

SHORT TERM /TODAY THROUGH SATURDAY/. Radar showing some scattered showers out there this morning . but overall W WA proves more dry than wet. Cold temps this AM allowed some precip to fall as snow . even in the lowlands north of the Seattle metro . but with temps currently in the upper 30s to around 40 at the time of this writing . the risk of any flakes should be minimal.

A weak upper level impulse will cross the area later today in northwest flow aloft. This might increase the potential for showers starting in the late morning/early afternoon and carrying into the evening hours . but given the weak nature of the system . terrain will likely be needed to kick-start activity That being said. not expecting activity to be as widespread as has been seen in the past few days. Any showers should taper off during the evening. Another weak shortwave associated with an upper level low over B.C./Alberta will bring yet another chance for afternoon/evening showers for Friday . but again . that system will also likely need the help of terrain to kick off some limited shower activity. Models remain in agreement that a brief upper level ridge should bring dry conditions to the area for Saturday . although an upper level trough hot on its heels but moving further to the south may end up causing forecast collaboration issues with PQR . which will likely end up being the forecast issue of the day . determining how far north that moisture will move up. Temps during the short term period look to remain below normal with highs generally in the upper 40s before maybe cracking the 50 threshold Saturday. 18

LONG TERM /SUNDAY THROUGH WEDNESDAY/. From Previous Discussion . Following the trends that previous model runs were hinting at, the deterministic runs of both the GFS and Euro now take Saturday's offshore trough well south of the area Sunday into Monday and leave the region generally dry. Despite this, weak troughiness remains over the area and the GFS tries to get a few terrain driven showers going. For this reason, it seem wise to leave a chance or slight chance of showers in the forecast Sunday/Monday. But both operational model runs and ensemble means are pointing to some improvement by Tuesday/Wednesday as upper ridging offshore noses closer to the Pacific Northwest for possible drier conditions and temperatures a little closer to climatological norms. 27

AVIATION. A broad upper level trough is over the Pac NW today with isolated to scattered showers across western WA. The flow aloft is northerly. The air mass is moist but most areas are seeing VFR conditions. Showers will remain in the area tonight as the trough lingers over the region. Patchy low clouds and MVFR cigs are possible Friday morning. 33

KSEA . VFR with scattered showers in the vicinity today. Winds S 5- 10kts. 33

MARINE. Onshore flow will prevail across western WA today. Strongest wind/waves will be through the Strait of Juan de Fuca and Northern Inland Waters - a Small Craft Advisory is in effect. Winds will remain onshore through Friday then ease Friday night. Low pressure will shift toward OR/CA over the weekend with generally light N/NE flow over western WA. 33

HYDROLOGY. An unsettled pattern will continue into the weekend, but precipitation amounts are not expected to lead to flooding concerns.

SEW WATCHES/WARNINGS/ADVISORIES. WA . None. PZ . Small Craft Advisory from 5 PM this afternoon to 8 PM PDT Friday for Central U.S. Waters Strait Of Juan De Fuca-East Entrance U.S. Waters Strait Of Juan De Fuca.

Small Craft Advisory from 8 PM this evening to 8 AM PDT Friday for Northern Inland Waters Including The San Juan Islands.



www.weather.gov/seattle


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WPOW1 - West Point, WA 5 mi166 min S 6 G 8 41°F 1022.3 hPa (+0.5)38°F
46120 12 mi163 min ESE 1.9 41°F 1021.4 hPa35°F
46125 21 mi158 min 40°F 1021.6 hPa38°F
TCMW1 - 9446482 - Tacoma Met, WA 24 mi178 min SSE 4.1 G 6
TCNW1 - 9446484 - Tacoma, WA 25 mi178 min 42°F 48°F1022.8 hPa
46121 26 mi163 min 1.9 41°F 1022.5 hPa38°F
PTWW1 - 9444900 - Port Townsend, WA 36 mi178 min SSE 1.9 G 4.1 40°F 47°F1022.6 hPa

Wind History for Seattle, Puget Sound, WA, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Boeing Field - King County International Airport, WA13 mi53 minSE 910.00 miMostly Cloudy44°F37°F76%1022.4 hPa
Bremerton, Bremerton National Airport, WA16 mi50 minWSW 610.00 miOvercast39°F37°F93%1022.8 hPa
Seattle, Seattle-Tacoma International Airport, WA17 mi53 minSSE 510.00 miOvercast42°F37°F82%1022.9 hPa
Renton Municipal Airport, WA18 mi53 minSSE 710.00 miOvercast43°F36°F76%1023 hPa
Everett Snohomish County, WA24 mi53 minESE 510.00 miOvercast41°F35°F79%1022.2 hPa
Tacoma, Tacoma Narrows Airport, WA24 mi53 minSW 410.00 miMostly Cloudy41°F36°F82%1022.6 hPa

Link to 5 minute data for KBFI

Wind History from BFI (wind in knots)
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Tide / Current Tables for Eagle Harbor, Bainbridge Island, Washington
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Eagle Harbor
Click for Map
Thu -- 01:52 AM PDT     10.48 feet High Tide
Thu -- 04:07 AM PDT     Moonset
Thu -- 06:45 AM PDT     Sunrise
Thu -- 07:19 AM PDT     7.65 feet Low Tide
Thu -- 11:26 AM PDT     8.75 feet High Tide
Thu -- 12:52 PM PDT     Moonrise
Thu -- 07:01 PM PDT     0.43 feet Low Tide
Thu -- 07:42 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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9.410.310.510.29.58.787.77.788.48.78.78.16.95.43.82.10.90.40.92.146.1

Tide / Current Tables for Rich Passage, off Pleasant Beach, Washington Current
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Rich Passage
Click for Map
Thu -- 02:09 AM PDT     -0.00 knots Slack
Thu -- 04:07 AM PDT     Moonset
Thu -- 05:31 AM PDT     -1.56 knots Max Ebb
Thu -- 06:45 AM PDT     Sunrise
Thu -- 10:32 AM PDT     -0.00 knots Min Ebb
Thu -- 12:52 PM PDT     Moonrise
Thu -- 04:46 PM PDT     -2.69 knots Max Ebb
Thu -- 07:42 PM PDT     Sunset
Thu -- 07:43 PM PDT     0.00 knots Slack
Thu -- 10:56 PM PDT     1.52 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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10.50.1-0.6-1.2-1.5-1.5-1.2-0.8-0.3-0-0-0.3-0.9-1.5-2.1-2.6-2.7-2.1-10.20.91.41.5

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 (13,3,4,5)
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Ground Weather Radar Station Seattle/Tacoma, WA
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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 numerous 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.