Tuesday, February18, 2020
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Marine Weather and Tides
Dash Point, 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 7:07AMSunset 5:38PM Tuesday February 18, 2020 8:52 AM PST (16:52 UTC) Moonrise 4:11AMMoonset 12:48PM Illumination 25% Phase: Waning Crescent; Moon at 25 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- 212 Am Pst Tue Feb 18 2020
Today..NE wind to 10 kt becoming N in the afternoon. Wind waves 1 ft or less.
Tonight..N wind 5 to 15 kt becoming to 10 kt after midnight. Wind waves 2 ft or less.
Wed..NE wind to 10 kt rising to variable in the afternoon. Wind waves 1 ft or less.
Wed night..Light wind becoming variable to 10 kt after midnight. Wind waves 1 ft or less.
Thu..Light wind. Wind waves less than 1 ft.
Thu night..Light wind. Wind waves less than 1 ft.
Fri..Light wind. Wind waves less than 1 ft becoming 1 ft or less.
Sat..S wind 5 to 15 kt. Wind waves 2 ft or less.
PZZ100 212 Am Pst Tue Feb 18 2020
Synopsis for the northern and central washington coastal and inland waters..High pressure will remain over the area through Wednesday. A weak front will probably reach the area Wednesday night or Thursday. A stronger weather system is likely Saturday.


7 Day Forecast for Marine Location Near Dash Point, WA
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location: 47.34, -122.39     debug


Area Discussion for - Seattle, WA
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FXUS66 KSEW 181022 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 222 AM PST Tue Feb 18 2020

SYNOPSIS. High pressure will be in control through much of the week, maintaining dry conditions and periods of sunshine. The ridge breaks down late in the week, with a return of precipitation chances by the end of the week and through the weekend.

SHORT TERM /TODAY THROUGH THURSDAY/. For the first time in what seems like a while, radar data reveals very little in the way of precipitation across the forecast area - only a few lingering showers over the coastal waters and near the central Strait of Juan de Fuca. Meanwhile, a ridge is continuing to amplify across the northeastern Pacific, with heights consequently beginning to rise across the region. With a drier pattern, clear skies, and generally light winds across the region, temperatures continue to drop rather quickly. Expect to see areas of fog develop and persist through around daybreak in the usual spots across the south Sound and down the I-5 corridor into Lewis County, and also expect some patchy freezing fog or frost across these and other outlying areas as temperatures dip into the upper 20s to lower 30s this morning.

Little change to the pattern through the next several days, which will set up the pattern of cool mornings with some areas of fog or frost around, giving way to afternoons near or slightly above seasonal normals and plenty of sunshine. By Thursday, an upper level trough well offshore is expected to split, with the bulk of the energy dropping south before it approaches Western Washington. This may, however, result in some additional mid-level clouds able to move into the region as a weak disturbance advancing into the flattening ridge. Expect that Thursday will remain dry across the region, though a weak shortwave impulse may be enough to bring a few light showers late Thursday night into Friday morning, especially in the mountains. Cullen

LONG TERM /FRIDAY THROUGH MONDAY/. Increasing clouds expected early Friday as the next frontal system moves into Western Washington. At this point, it looks like a wet weekend across Western Washington as this next system will spread lowland rain and mountain snow across the region. Snow levels will generally be starting off around 2,000 feet and remain near or below the Cascade passes. However, will need to keep an eye on the end of the weekend as guidance suggests that lingering showers in the cooler air mass could bring light snow down to around 1,000 ft late Sunday into Monday. Cullen

AVIATION. High pressure will remain over the region today and Wednesday. Skies should be mostly clear except for patchy night and morning fog or low clouds.

KSEA . Mostly clear skies with a light northerly wind.

MARINE. High pressure will build over the waters with light offshore flow. This will persist through at least mid-week. Next system arrives late week into the weekend with stronger winds and building seas.

HYDROLOGY. The flood warning for the White River at R Street continues, as the river remains at or near flood flow due to upstream releases. Levels may fluctuate near flood stage through Tuesday. Elsewhere, no river flooding is expected through 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
TCNW1 - 9446484 - Tacoma, WA 5 mi58 min 33°F 49°F1030.5 hPa
TCMW1 - 9446482 - Tacoma Met, WA 5 mi64 min SE 2.9 G 5.1
46121 18 mi45 min 3.9 37°F 1029.9 hPa35°F
WPOW1 - West Point, WA 22 mi52 min NE 7 G 7 35°F 1030.3 hPa (-0.0)31°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, WA8 mi5 hrsE 410.00 miFair34°F28°F82%1030.1 hPa
Tacoma, Tacoma Narrows Airport, WA11 mi5 hrsN 010.00 miFair31°F30°F96%1029.7 hPa
Tacoma / McChord Air Force Base, WA13 mi4.9 hrsN 03.00 miFog/Mist26°F26°F100%1030.1 hPa
Boeing Field - King County International Airport, WA14 mi5 hrsN 010.00 miFair34°F30°F85%1029.8 hPa
Renton Municipal Airport, WA14 mi5 hrsN 010.00 miFair31°F28°F89%1030.4 hPa
Pierce County-Thun Field, WA17 mi5 hrsN 010.00 miFair27°F26°F100%1029.1 hPa
Fort Lewis / Gray U. S. Army Airfield, WA20 mi4.9 hrsN 010.00 miFair28°F27°F100%1029.8 hPa
Bremerton, Bremerton National Airport, WA22 mi4.9 hrsN 09.00 miFair26°F25°F96%1030.2 hPa

Link to 5 minute data for KSEA

Wind History from SEA (wind in knots)
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Last 24hrCalmS5S4SE5S4W5CalmE6CalmN7NE7NE6NE5NE5E3E3N5E4SE5CalmE4NE4NE3Calm
1 day agoS6S8S8S12SW12SW12SW18
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SW10SW12SW9SW11SW8SW5SW8SW4SE3SE7S8S4S4S4S6S5
2 days ago--S11S10S12S8
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S10S8S11S10S7S8S5S7SE5S7S6S5SW9

Tide / Current Tables for Des Moines, Washington
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Des Moines
Click for Map
Tue -- 02:20 AM PST     10.67 feet High Tide
Tue -- 04:11 AM PST     Moonrise
Tue -- 07:07 AM PST     7.75 feet Low Tide
Tue -- 07:10 AM PST     Sunrise
Tue -- 12:01 PM PST     10.72 feet High Tide
Tue -- 12:48 PM PST     Moonset
Tue -- 05:37 PM PST     Sunset
Tue -- 07:41 PM PST     -0.26 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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8.81010.610.59.88.88.17.87.98.69.510.410.710.49.47.75.53.21.2-0-0.20.62.44.7

Tide / Current Tables for The Narrows, North end E side, Washington Current
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The Narrows
Click for Map
Tue -- 02:32 AM PST     -0.00 knots Slack
Tue -- 04:11 AM PST     Moonrise
Tue -- 05:54 AM PST     -2.05 knots Max Ebb
Tue -- 07:10 AM PST     Sunrise
Tue -- 07:48 AM PST     0.00 knots Slack
Tue -- 10:03 AM PST     1.71 knots Max Flood
Tue -- 12:38 PM PST     -0.00 knots Slack
Tue -- 12:49 PM PST     Moonset
Tue -- 05:11 PM PST     -4.64 knots Max Ebb
Tue -- 05:38 PM PST     Sunset
Tue -- 08:16 PM PST     0.00 knots Slack
Tue -- 11:26 PM PST     3.61 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.71.70.6-0.5-1.4-1.9-2-1.40.21.31.71.40.6-0.5-2-3.4-4.3-4.6-4.4-3.2-0.81.42.93.5

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 (11,2,3,4)
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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.