Saturday, March28, 2020
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Marine Weather and Tides
Manchester, 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 6:53AMSunset 7:36PM Saturday March 28, 2020 10:41 AM PDT (17:41 UTC) Moonrise 8:06AMMoonset 11:10PM Illumination 21% Phase: Waxing Crescent; Moon at 5 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- 854 Am Pdt Sat Mar 28 2020
.small craft advisory in effect through late tonight...
Today..S wind 10 to 20 kt rising to 15 to 25 kt in the afternoon. Wind waves 2 to 4 ft. A chance of rain.
Tonight..S wind 10 to 20 kt rising to 15 to 25 kt after midnight. Wind waves 2 to 4 ft. Rain likely in the evening then rain after midnight.
Sun..SW wind 15 to 25 kt. Wind waves 2 to 4 ft. Rain likely in the morning then a chance of rain in the afternoon.
Sun night..SW wind 10 to 20 kt becoming S 20 to 30 kt after midnight. Wind waves 1 to 3 ft building to 3 to 5 ft after midnight.
Mon..S wind 20 to 30 kt becoming sw 15 to 25 kt in the afternoon. Wind waves 3 to 5 ft.
Mon night..SW wind 15 to 25 kt. Wind waves 2 to 4 ft.
Tue..S wind to 10 kt becoming sw. Wind waves 1 ft or less.
Wed..Light wind. Wind waves less than 1 ft.
PZZ100 854 Am Pdt Sat Mar 28 2020
Synopsis for the northern and central washington coastal and inland waters..A pair of weak fronts will cross the waters today, with increasing southerly winds at times. A stronger weather systems reaches the coastal waters late Sunday, before pushing across the inland waters early Monday.


7 Day Forecast for Marine Location Near Manchester, WA
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location: 47.57, -122.53     debug


Area Discussion for - Seattle, WA
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FXUS66 KSEW 281545 CCA AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 845 AM PDT Sat Mar 28 2020

SYNOPSIS. Cloudy conditions and periods of rain are expected in the lowlands through early next week. Moderate to heavy mountain snow and gusty winds will be possible Sunday night into Monday as a weather system pushes through the region. Warming and drying conditions are expected during the second half of the week.

SHORT TERM /TODAY THROUGH TUESDAY/. There are no updates this morning as the radars shows areas of precip. Periods of light rain will continue today through Sunday before briefly tapering off Sunday afternoon. Little in the way of impacts are expected during this period. Snow levels will hover around 4000-4500 feet today and drop to 3200-4000 feet Sunday, with slow accumulations possible.

The headline through the short term is a somewhat stronger system sliding down from the Gulf of Alaska, bringing a glancing blow to the Pacific Northwest. This will result in a period of gusty winds, heavier rainfall, and moderate to heavy mountain snow between Sunday night and Monday, with conditions improving Tuesday. Winds will be strongest along the coast as well as near the water from Everett northward. At this time it appears that winds along the immediate coast in these areas could see gusts approaching 45 MPH, with areas inland seeing gusts generally between 20 and 30 MPH. Rainfall amounts will remain below thresholds where flooding would be a significant concern, however snowfall could become a concern in the mountains. Snow levels will drop to 2200-3000 feet on Monday and snowfall rates may increase to around 1 inch per hour at times, particularly Monday morning. It seems likely that winter weather highlights will be needed for this event as impacts will be possible across the mountain passes. Conditions will begin to improve Tuesday, with precipitation tapering off through the day.

LONG TERM /WEDNESDAY THROUGH FRIDAY/. General consensus for the long term period is for warming and drying conditions. Temperatures in the lowlands could rise to the upper 50s to around 60 by this weekend, lasting into the early part of the following week. -Wolcott-

AVIATION. Moist westerly flow aloft continues across the region as a series of disturbance cross the Pacific Northwest today and tonight. Expect mostly MVFR ceilings through the period with local IFR possible at times as heavier areas of rain develop. Southerly surface winds persist across much of the today, though shift to become southwesterly possible at some sites in between disturbance.

KSEA . High MVFR to low VFR ceilings likely continue through most of the period with rounds of rain, especially this morning through 18z and again this evening after 23z will provide times where cigs are more likely to be lower. Otherwise little change through early Sunday, with a stronger system approaching late Sunday night. Winds remain predominantly southerly today, with speeds increasing to around 12 kt this evening/overnight. Cullen

MARINE. A pair of weak fronts crosses the waters today, with advisory strength southerly winds across most of the area waters ahead of each front. A stronger disturbance reaches the coastal waters late reaches the coastal Sunday, before pushing onshore by early Monday, bringing high end advisory winds and possible gales to much of the waters. Meanwhile, expect seas to build above 10 feet across the coastal waters for the start of the the week, first due to the stronger wind wave component and then remaining elevated with the arrival of a longer period swell. Cullen

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

SEW WATCHES/WARNINGS/ADVISORIES. WA . None. PZ . Small Craft Advisory until 2 PM PDT this afternoon for East Entrance U.S. Waters Strait Of Juan De Fuca-Northern Inland Waters Including The San Juan Islands.

Small Craft Advisory until 2 AM PDT Sunday for Admiralty Inlet- Puget Sound and Hood Canal.



www.weather.gov/seattle


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WPOW1 - West Point, WA 8 mi42 min S 20 G 22 48°F 1015.3 hPa (-0.7)45°F
46120 15 mi35 min S 9.7 49°F 1014.5 hPa42°F
TCMW1 - 9446482 - Tacoma Met, WA 21 mi54 min SSE 5.1 G 8
TCNW1 - 9446484 - Tacoma, WA 22 mi54 min 50°F 48°F1016.6 hPa
46125 24 mi39 min 48°F 1013.3 hPa43°F
PTWW1 - 9444900 - Port Townsend, WA 39 mi54 min ESE 16 G 23 48°F 47°F1014.1 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, WA12 mi49 minS 910.00 miOvercast50°F42°F74%1015.8 hPa
Bremerton, Bremerton National Airport, WA14 mi46 minS 1010.00 miLight Rain46°F44°F93%1016 hPa
Seattle, Seattle-Tacoma International Airport, WA15 mi49 minS 1210.00 miLight Rain49°F42°F77%1016.3 hPa
Renton Municipal Airport, WA17 mi49 minS 510.00 miOvercast49°F43°F80%1016.4 hPa
Tacoma, Tacoma Narrows Airport, WA21 mi49 minS 410.00 miLight Rain46°F43°F89%1016 hPa

Link to 5 minute data for KBFI

Wind History from BFI (wind in knots)
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Tide / Current Tables for Clam Bay, Rich Passage, Washington
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Clam Bay
Click for Map
Sat -- 02:04 AM PDT     4.64 feet Low Tide
Sat -- 06:55 AM PDT     Sunrise
Sat -- 07:42 AM PDT     10.54 feet High Tide
Sat -- 09:05 AM PDT     Moonrise
Sat -- 02:30 PM PDT     0.85 feet Low Tide
Sat -- 07:35 PM PDT     Sunset
Sat -- 09:15 PM PDT     10.18 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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6.55.24.65.16.37.89.310.310.59.78.26.242.1112.13.96.18.19.510.2109.2

Tide / Current Tables for Rich Passage, West end, Washington Current
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Rich Passage
Click for Map
Sat -- 12:06 AM PDT     -2.42 knots Max Ebb
Sat -- 02:29 AM PDT     0.00 knots Slack
Sat -- 05:20 AM PDT     1.54 knots Max Flood
Sat -- 06:55 AM PDT     Sunrise
Sat -- 08:24 AM PDT     -0.00 knots Slack
Sat -- 09:05 AM PDT     Moonrise
Sat -- 12:02 PM PDT     -3.36 knots Max Ebb
Sat -- 02:43 PM PDT     0.00 knots Slack
Sat -- 06:08 PM PDT     2.62 knots Max Flood
Sat -- 07:35 PM PDT     Sunset
Sat -- 10:03 PM PDT     -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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-2.4-2-0.70.51.21.51.51.10.4-0.7-2-3-3.4-2.8-1.30.41.52.32.62.51.91.10.1-1.1

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.