Tuesday, May22, 2018 L-36.com


Marine Weather and Tides
Shoreline, WA

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.

Sunrise 5:20AMSunset 8:51PM Tuesday May 22, 2018 12:32 PM PDT (19:32 UTC) Moonrise 12:15PMMoonset 1:31AM Illumination 55% Phase: First Quarter Moon; Moon at 8 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- 841 Am Pdt Tue May 22 2018
Today..Light wind becoming N to 10 kt in the afternoon. Wind waves 1 ft or less.
Tonight..N wind to 10 kt in the evening becoming light. Wind waves 1 ft or less.
Wed..Light wind becoming nw to 10 kt in the afternoon. Wind waves 1 ft or less.
Wed night..N wind to 10 kt becoming S after midnight. Wind waves 1 ft or less.
Thu..SW wind to 10 kt. Wind waves 1 ft or less.
Thu night..NW wind to 10 kt becoming S after midnight. Wind waves 1 ft or less.
Fri..Variable wind to 10 kt becoming ne. Wind waves 1 ft or less.
Sat..Light wind becoming ne to 10 kt. Wind waves 1 ft or less.
PZZ100 841 Am Pdt Tue May 22 2018
Synopsis for the northern and central washington coastal and inland waters..High pres will remain offshore through Saturday with lower pres east of the cascades, maintaining onshore flow. Onshore flow will be stronger Wednesday and Wednesday night, and there is a good chance of gale westerlies in the central and eastern strait of juan de fuca.

7 Day Forecast for Marine Location Near Shoreline, WA
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location: 47.7, -122.42     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 221537
afdsew
area forecast discussion
national weather service seattle wa
845 am pdt Tue may 22 2018

Synopsis An upper ridge over the area today will slowly drift
east Wednesday and Thursday. Temperatures will remain warm through
Wednesday and then a little cooling will occur Thursday with light
onshore flow. Increasing southerly flow aloft on Wednesday will
bring a chance of showers to the mountains. A weather system
will bring cooler weather and a chance of showers Friday and
Saturday.

High pressure might build into the area for Sunday and Monday.

Short term Areas of morning fog and low clouds are on the coast,
in the strait of juan de fuca, and all around admiralty inlet and
whidbey island--with a few patches elsewhere. Sunny skies and warm
temps are expected through Wednesday, and then some onshore flow will
develop and temps should cool into Thursday. There is a chance of
showers near the cascade crest Wednesday afternoon and evening.

Long term Extended models in good agreement for most of the
extended on the 00z run with some changes to the forecast. Upper
level low to the south of the area moving inland about 12 to 18
hours faster than previous runs. This will increase the cloud
cover over western washington on Friday with a chance of showers
by afternoon. Highs will cool into the 60s for the entire area.

Upper level trough moving into the area Friday night and Saturday
keeping the mostly cloudy chance of showers forecast going into
the first part of the holiday weekend. Weak front moving by to the
north on Sunday. Current run has this system getting pushed far
enough to the north to keep precipitation out of the area. Would
like to see another run or two of this solution before drying out
Sunday. Model solutions are a little different for memorial day
with the GFS putting some weak trofiness off the coast with
southwesterly flow aloft while the ECMWF builds a flat ridge into
the area. Both models are dry with low level onshore flow so at
least right now memorial day looks like a pretty typical late may
day with morning clouds and afternoon Sun with highs in the 60s
and lower 70s. Felton

Aviation Light northerly flow aloft this morning will become
light east-southeasterly this afternoon and evening as an upper
level ridge axis near the coast shifts into the interior of british
columbia. The air mass is dry and stable except for areas of low
level moisture near the coast and strait of juan de fuca. Low level
onshore flow continues and will peak during the late afternoon and
evening hours.VFR conditions in place over much of W wa this
morning save for ifr conditions present over the north coast and
along the strait of juan de fuca. CIGS there are expected to improve
by late this morning toVFR conditions as low level moisture clouds
burn off. However... Given the current weather pattern... Low clouds
are expected to return to these locations late tonight and into
Wednesday morning.

Ksea...VFR conditions expected to continue over the next 24 hours.

Surface winds north-northwest 5 to 10 knots... Becoming southwest
early Wednesday morning. 27 smr

Marine High pressure will remain offshore through Saturday with
lower pressure east of the cascades, maintaining onshore flow. Small
craft advisory westerlies are likely in the central and eastern
strait of juan de fuca again late this afternoon through early
Wednesday morning.

Onshore flow will be stronger Wednesday and Wednesday night, and
there is a good chance of gale westerlies in the central and
eastern strait, along with small craft advisory winds in the
adjacent waters of admiralty inlet and the northern inland waters.

A gale watch remains in place for the aforementioned portions of the
strait. Will likely wait a bit before adding headlines for the
adjacent waters. Mcdonnal smr

Climate With an average temperature of 60.9 degrees this has
been the warmest first 3 weeks of may on record in seattle. Warm
starts to may have been common the last few years. The second
warmest first 3 weeks of may in seattle 2013 ( 60.2 ), 3rd
warmest 2016 ( 60.1 ) and 4th warmest 2014 ( 58.9 ). Records
started at sea-tac airport in 1945. Felton

Sew watches warnings advisories
Wa... None.

Pz... Gale watch from Wednesday afternoon through late Wednesday night
for central u.S. Waters strait of juan de fuca-east
entrance u.S. Waters strait of juan de fuca.

Small craft advisory from 3 pm this afternoon to 3 am pdt
Wednesday for central u.S. Waters strait of juan de fuca-
east entrance u.S. Waters strait of juan de fuca.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WPOW1 - West Point, WA 3 mi32 min N 8 G 8.9 57°F 1014.1 hPa (-1.2)54°F
46120 4 mi36 min WSW 9.7 55°F 1013.3 hPa53°F
EBSW1 - 9447130 - Seattle, WA 8 mi44 min WNW 11 G 12 59°F 51°F1013.9 hPa
46125 18 mi41 min 9.7 50°F 1013.6 hPa49°F
TCMW1 - 9446482 - Tacoma Met, WA 29 mi50 min WNW 8 G 8
TCNW1 - 9446484 - Tacoma, WA 30 mi50 min 62°F 51°F1013.8 hPa
46121 33 mi31 min 64°F 1013.3 hPa53°F
PTWW1 - 9444900 - Port Townsend, WA 34 mi50 min W 6 G 8 60°F 51°F1014.9 hPa
SISW1 - Smith Island, WA 48 mi42 min WSW 6 G 7 49°F 1014.6 hPa (-0.8)47°F

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 mi39 minNNW 510.00 miFair68°F51°F55%1013.4 hPa
Everett Snohomish County, WA16 mi39 minNNW 510.00 miFair64°F52°F65%1014.1 hPa
Renton Municipal Airport, WA17 mi39 minNW 910.00 miFair69°F53°F57%1013.6 hPa
Seattle, Seattle-Tacoma International Airport, WA19 mi39 minWNW 810.00 miA Few Clouds69°F52°F55%1014.3 hPa
Bremerton, Bremerton National Airport, WA24 mi36 minE 310.00 miFair69°F53°F57%1015.3 hPa

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Last 24hr45NW96NW96NW8NW6NW4NW3NW5NW4NW3CalmCalmCalmCalmCalmCalm3Calm43N5
1 day agoS4SW3Calm3N5NW5NW54NW5NW33CalmCalmCalmN34Calm3CalmN3E4NW645
2 days ago4344NE4N6NW54CalmCalmCalmSW4S5S5SE4S6S7S4S6S6S5S5S53

Tide / Current Tables for Meadow Point, Shilshole Bay, Washington
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Meadow Point
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Tue -- 12:02 AM PDT     11.83 feet High Tide
Tue -- 02:30 AM PDT     Moonset
Tue -- 05:23 AM PDT     Sunrise
Tue -- 06:17 AM PDT     5.22 feet Low Tide
Tue -- 11:05 AM PDT     7.91 feet High Tide
Tue -- 01:15 PM PDT     Moonrise
Tue -- 05:35 PM PDT     0.94 feet Low Tide
Tue -- 08:49 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
11.811.410.38.775.85.25.45.96.87.67.97.66.75.43.72.11.111.93.65.78.110.1

Tide / Current Tables for Alki Point, 0.3 miles W of, Washington Current
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Alki Point
Click for Map
Tue -- 02:30 AM PDT     Moonset
Tue -- 02:54 AM PDT     -0.50 knots Max Ebb
Tue -- 05:24 AM PDT     Sunrise
Tue -- 07:08 AM PDT     0.00 knots Slack
Tue -- 08:40 AM PDT     0.17 knots Max Flood
Tue -- 10:52 AM PDT     -0.00 knots Slack
Tue -- 01:15 PM PDT     Moonrise
Tue -- 02:31 PM PDT     -0.47 knots Max Ebb
Tue -- 06:01 PM PDT     0.00 knots Slack
Tue -- 08:49 PM PDT     Sunset
Tue -- 09:05 PM PDT     0.67 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0-0.3-0.5-0.5-0.5-0.3-0.2-00.10.20.1-0-0.2-0.4-0.5-0.5-0.4-0.2-00.30.60.70.60.5

Weather Map and Satellite Images
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wmap_P
GOES 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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Wind Forecast for Seattle, WA (15,3,4,5)
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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 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.