Saturday, January25, 2020
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Marine Weather and Tides
Kent, 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 7:41AMSunset 5:01PM Saturday January 25, 2020 7:37 PM PST (03:37 UTC) Moonrise 8:33AMMoonset 5:54PM Illumination 1% Phase: Waxing Crescent; Moon at 1 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- 256 Pm Pst Sat Jan 25 2020
.small craft advisory in effect from Sunday morning through Sunday afternoon...
Tonight..Variable wind 5 to 15 kt becoming E 10 to 15 kt after midnight. Wind waves 1 to 2 ft. A chance of showers in the evening then rain after midnight.
Sun..S wind 20 to 30 kt becoming sw 15 to 25 kt in the afternoon. Wind waves 3 to 5 ft. Rain in the morning then showers likely in the afternoon.
Sun night..S wind 15 to 25 kt. Wind waves 2 to 4 ft. Showers likely in the evening then rain likely after midnight.
Mon..S wind 10 to 20 kt becoming se 5 to 15 kt in the afternoon. Wind waves 1 to 3 ft.
Mon night..S wind 10 to 20 kt rising to 15 to 25 kt after midnight. Wind waves 2 to 4 ft.
Tue..S 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 becoming to 10 kt after midnight. Wind waves 2 ft or less.
Wed..S wind 5 to 15 kt. Wind waves 2 ft or less.
Thu..S wind to 10 kt. Wind waves 1 ft or less.
PZZ100 256 Pm Pst Sat Jan 25 2020
Synopsis for the northern and central washington coastal and inland waters..A 995 mb low will move through the offshore waters tonight and into vancouver island Sunday morning. The associated front will move through the waters late tonight. Another system will arrive Sunday night with the active weather pattern continuing through much of next week.


7 Day Forecast for Marine Location Near Kent, WA
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location: 47.39, -122.26     debug


Area Discussion for - Seattle, WA
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FXUS66 KSEW 252231 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 231 PM PST Sat Jan 25 2020

SYNOPSIS. A front will move through Western Washington tonight. The associated low pressure center will bring windy weather to the coast and north part of the area later tonight and Sunday morning. A trough will move through the area Sunday evening. A parade of additional weather systems will affect the region through next week.

SHORT TERM /TONIGHT THROUGH TUESDAY/. The next frontal system is coming together just offshore and will arrive tonight and Sunday morning for a round of rather blustery weather and full gales to the normally windier marine areas like the coast and north. Wind advisories will be in effect for the adjacent land areas. That system will be followed quickly by a trough Sunday evening. Yet another system arrives Monday--with the heavier rain probably heading more into northwest Oregon and southwest Washington around Monday evening and than that system splits somewhat, weakens, and moves ashore Tuesday with a little shot of cooler air aloft in its wake and perhaps a break in the weather around Tuesday night.

LONG TERM /WEDNESDAY THROUGH SATURDAY/. A frontal system on Wednesday--perhaps timed for Wednesday afternoon and night--looks fairly progressive but a little bit warmer. Upper heights rise a bit through Thursday--and Thursday might see a break in the precip. Friday and Saturday are likely to be wet and mild--the atmospheric river pattern. That might mean a more significant round of river flooding is possible around the end of next week.

AVIATION. Westerly flow aloft backing to southwesterly tonight and becoming strong as potent frontal system approaches from the southwest. Surface gradients are light this afternoon and this has allowed ceilings to deteriorate to low MVFR and IFR. As the low level flow becomes increasingly offshore late this afternoon and evening, a short term improvement to general VFR ceilings is expected. Ceilings will drop back to MVFR early Sunday morning as rain spreads inland from the coast with the next system. Low level wind shear will become a factor by 09Z-12Z Sunday morning as winds near 2000 feet rapidly rise to southerly 40-45 knots.

KSEA . Low MVFR and IFR ceilings expected to gradually improve to VFR this evening as low level easterly flow increases and dries the low levels of the atmosphere. Ceilings will drop back to MVFR 09Z- 12Z Sunday with rain spreading back into the terminal. As mentioned above, low level wind shear expected to be a factor 09Z through perhaps 18Z before winds aloft ease with passage of frontal system. Surface winds light southerly backing to easterly 5 to 10 knots this evening . then veering southerly 15 gusting 25 knots by 14Z-16Z Sunday morning. 27

MARINE. A strong front associated with a 995 mb low moving into Vancouver Island Sunday morning will reach Western Washington late tonight into Sunday morning. Gale force winds are likely for the coastal waters as well as the Northern Inland waters, East Entrance to the Strait and Admiralty Inlet Sunday morning easing to small craft in the afternoon. Small craft advisory winds over the remainder of the waters late Saturday night into Sunday. Another strong system will move through the area Sunday evening. Active weather pattern continuing next week with a significant system possible Monday night or Tuesday. 27

HYDROLOGY. Although there are several weather systems that will move through Western Washington through midweek the pattern is fairly progressive with period of rain turning to scattered showers periodically. The river forecasts do not look too bad at all through the middle of the week. Naturally the Skokomish river will remain high, probably remaining above flood stage most of the time. But it might not be til late in the week that a more general river flood event becomes possible--the 12z GFS and ECMWF both had a rather wet scenario Fri/Sat so that bears watching.

SEW WATCHES/WARNINGS/ADVISORIES. WA . Wind Advisory from 3 AM to 11 AM PST Sunday for Admiralty Inlet Area-Central Coast-North Coast-San Juan County-Western Skagit County-Western Whatcom County.

PZ . Small Craft Advisory until 6 PM PST this evening for Grays Harbor Bar.

Small Craft Advisory until 6 AM PST Sunday for Coastal Waters From Cape Flattery To James Island 10 To 60 Nm-Coastal Waters From Cape Flattery To James Island Out 10 Nm-Coastal Waters From James Island To Point Grenville 10 To 60 Nm- Coastal Waters From James Island To Point Grenville Out 10 Nm-Coastal Waters From Point Grenville To Cape Shoalwater 10 To 60 Nm-Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm.

Gale Warning from 6 AM to noon PST Sunday for Admiralty Inlet- Coastal Waters From Cape Flattery To James Island 10 To 60 Nm-Coastal Waters From Cape Flattery To James Island Out 10 Nm-Coastal Waters From James Island To Point Grenville 10 To 60 Nm-Coastal Waters From James Island To Point Grenville Out 10 Nm-Coastal Waters From Point Grenville To Cape Shoalwater 10 To 60 Nm-Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm-East Entrance U.S. Waters Strait Of Juan De Fuca-Northern Inland Waters Including The San Juan Islands.

Small Craft Advisory from 1 AM to 6 PM PST Sunday for Central U.S. Waters Strait Of Juan De Fuca-West Entrance U.S. Waters Strait Of Juan De Fuca.

Small Craft Advisory from 6 AM to 6 PM PST Sunday for Puget Sound and Hood Canal.



www.weather.gov/seattle


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TCMW1 - 9446482 - Tacoma Met, WA 11 mi50 min NW 4.1 G 4.1
TCNW1 - 9446484 - Tacoma, WA 12 mi56 min 49°F1014.5 hPa
WPOW1 - West Point, WA 21 mi38 min E 1.9 G 2.9 49°F 1014.4 hPa (-1.9)47°F

Wind History for Tacoma MET, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Seattle, Seattle-Tacoma International Airport, WA4 mi45 minNNE 510.00 miMostly Cloudy48°F46°F93%1014.7 hPa
Renton Municipal Airport, WA8 mi45 minN 59.00 miFair45°F44°F97%1014.6 hPa
Boeing Field - King County International Airport, WA10 mi45 minN 010.00 miFair47°F45°F93%1014.2 hPa
Tacoma, Tacoma Narrows Airport, WA19 mi45 minNNE 510.00 miMostly Cloudy46°F45°F96%1014 hPa
Tacoma / McChord Air Force Base, WA20 mi1.7 hrsNE 510.00 miA Few Clouds47°F47°F100%1015 hPa
Pierce County-Thun Field, WA20 mi43 minN 010.00 miFair46°F46°F100%1013.5 hPa

Link to 5 minute data for KSEA

Wind History from SEA (wind in knots)
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Last 24hrSE10S5SE6SE6SE6E7SE6S5SE4CalmCalmE9Calm3E44S4S4S8SW6CalmCalmE5N5
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Tide / Current Tables for Des Moines, Washington
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Des Moines
Click for Map
Sat -- 06:25 AM PST     12.86 feet High Tide
Sat -- 07:43 AM PST     Sunrise
Sat -- 08:32 AM PST     Moonrise
Sat -- 11:47 AM PST     7.06 feet Low Tide
Sat -- 04:25 PM PST     10.60 feet High Tide
Sat -- 04:59 PM PST     Sunset
Sat -- 05:54 PM PST     Moonset
Sat -- 11:32 PM PST     -1.10 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.71.34.17.29.911.812.812.711.7108.47.37.17.68.79.810.510.59.57.85.52.90.5-0.9

Tide / Current Tables for Skagit Bay, 1 mile S of Goat Island, Washington Current
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Skagit Bay
Click for Map
Sat -- 03:27 AM PST     -0.08 knots Slack
Sat -- 06:05 AM PST     -1.35 knots Max Ebb
Sat -- 07:44 AM PST     Sunrise
Sat -- 08:33 AM PST     Moonrise
Sat -- 09:28 AM PST     0.06 knots Slack
Sat -- 11:26 AM PST     1.39 knots Max Flood
Sat -- 02:47 PM PST     -0.03 knots Slack
Sat -- 05:00 PM PST     Sunset
Sat -- 05:51 PM PST     -1.45 knots Max Ebb
Sat -- 05:55 PM PST     Moonset
Sat -- 08:59 PM PST     0.01 knots Slack
Sat -- 11:52 PM PST     2.00 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.91.71.40.7-0.9-1.2-1.4-1.3-1.1-0.70.91.41.41.20.8-0.5-1.1-1.4-1.4-1.3-101.31.9

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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Seattle, WA (22,6,7,8)
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Ground Weather Radar Station Seattle/Tacoma, WA
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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 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.