Wednesday, June28, 2017 L-36.com


Marine Weather and Tides
Shoreline, WA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 5:12AMSunset 9:13PM Wednesday June 28, 2017 12:09 AM PDT (07:09 UTC) Moonrise 9:49AMMoonset 11:25PM Illumination 18% Phase: Waxing Crescent; Moon at 4 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 Pm Pdt Tue Jun 27 2017
Tonight..Variable wind to 10 kt. Wind waves 1 ft or less.
Wed through Thu..Variable wind to 10 kt becoming nw 5 to 15 kt in the afternoon and evening hours. Wind waves 1 or 2 ft.
Thu night..NW wind 5 to 15 kt in the evening becoming light. Wind waves 1 or 2 ft.
Fri..Variable wind to 10 kt. Wind waves 1 ft or less.
Fri night..NW wind 5 to 15 kt in the evening becoming light. Wind waves 1 or 2 ft.
Sat and Sun..N wind to 10 kt. Wind waves 1 ft or less.
PZZ100 825 Pm Pdt Tue Jun 27 2017
Synopsis for the northern and central washington coastal and inland waters..High pressure offshore with low pressure east of the cascades will maintain onshore flow of varying strength through this weekend. The flow will become strong enough Friday afternoon and evening for the possibility of gale force winds over parts of the 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 280319
afdsew
area forecast discussion
national weather service seattle wa
820 pm pdt Tue jun 27 2017

Synopsis A surface ridge offshore will maintain onshore flow
across western washington into early next week. This will produce
typical early summer weather with mild temperatures and morning low
clouds and afternoon sunshine. An upper level ridge will weaken the
onshore flow and produce a minor warming trend Thursday and Friday.

Stronger onshore flow will bring a bit more cloud cover this
weekend. A weak front could bring a few showers to mainly the coast
on Sunday.

Short term Satellite imagery shows mostly clear skies across W wa
this evening except for low marine stratus that has pushed inland
along the central wa coast. Onshore pressure gradients are around
1.5 mb. This will help recharge the already somewhat moist marine
layer over the interior tonight, so Wednesday morning should start
off with our familiar low stratus clouds covering most of the
interior lowlands. Burn-off should occur around midday again
followed by mostly sunny skies Wednesday afternoon.

An upper level ridge offshore along 135w this evening will move
steadily eastward, with the axis reaching the offshore waters on
Thursday then moving slowly across wa on Friday. The ridge will
weaken the onshore flow for less morning cloud cover Thursday and
especially on Friday. More sunshine coupled with warming from the
ridge will bring a minor warming trend. Inland high temperatures
should be in the 70s on Thursday and in the mid 70s to lower 80s on
Friday. Coastal highs will be cooler, 60s on Thursday with some
lower 70s around on Friday. Kam

Long term The upper level ridge will exit over the id panhandle
Friday night leaving the way clear for a weak front to approach the
region this weekend. Onshore flow will increase again Friday night
which will produce more stratus and a deeper marine layer Saturday
morning. High temperatures will drop back into the 70s. The weak
front approaching the coast will slide inland on Sunday. There is a
slight chance for some spotty showers along the coast and maybe the
north interior. The marine layer will be pretty deep but this could
allow some intermittent sunbreaks to occur in the afternoon.

The onshore flow pattern will continue early next week with a
surface ridge offshore and moderate W flow aloft over the region. So
independence day will have the familiar morning low clouds with some
afternoon clearing and mild temperatures. Kam

Aviation Weak upper level trof over the region will cont moving
slowly e, with upper level ridge following in its wake. Contd nw
flow aloft. The low level flow will remain onshore. Areas of coastal
marine stratus should spread back inland overnight but Wednesday
should see a bit less of the stratus and it should burn off a bit
quicker.

Ksea... Morning low clouds from about 12-18z are a pretty good bet
again Wednesday morning--although oth-sea is only +2mb and yesterday
at this time it was +4mb, so I may trim it back a bit and it could
be that a four hour tempo group might be enough to cover it on wed.

Marine Higher pres offshore with lower pres E of the cascades
will maintain onshore flow of varying strength through this weekend.

The flow will become strong Friday afternoon and evening for the
possibility of gale force winds over parts of the strait of juan de
fuca.

Sew watches warnings advisories
Wa... None.

Pz... Small craft advisories central eastern 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 mi69 min WNW 1.9 G 2.9 58°F 1015.1 hPa (+0.4)52°F
EBSW1 - 9447130 - Seattle, WA 8 mi57 min NW 6 G 7 61°F 53°F1014.9 hPa
TCMW1 - 9446482 - Tacoma Met, WA 29 mi63 min W 9.9 G 13
TCNW1 - 9446484 - Tacoma, WA 30 mi57 min 63°F 53°F1015.1 hPa
46121 33 mi54 min 5.8 58°F 1014.3 hPa51°F
PTWW1 - 9444900 - Port Townsend, WA 34 mi57 min WSW 6 G 8 58°F 52°F1015.5 hPa
SISW1 - Smith Island, WA 48 mi69 min SSW 13 G 14 54°F 1014.7 hPa (+0.0)

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 mi77 minW 510.00 miFair65°F54°F68%1014.6 hPa
Everett Snohomish County, WA16 mi77 minNNW 510.00 miFair56°F52°F87%1015.2 hPa
Renton Municipal Airport, WA17 mi77 minN 010.00 miFair64°F54°F70%1015 hPa
Seattle, Seattle-Tacoma International Airport, WA19 mi77 minSW 610.00 miPartly Cloudy63°F52°F68%1015.6 hPa
Bremerton, Bremerton National Airport, WA24 mi74 minS 410.00 miPartly Cloudy57°F52°F83%1017 hPa

Wind History from BFI (wind in knots)
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Last 24hrS8S8S7S8S5SW6S5S55SW6SW76W73SW6Calm3CalmCalmCalmE3CalmW5NW3
1 day agoS6S8S10S8SE7W5SW5S5SW5SW5S9S11
G19
55SW9S76S63S83S5S5S5
2 days ago3CalmCalmCalmCalmCalmCalmN3NW4NW5NW653NW5N8NW7NW8NW1056CalmNW4CalmNW4

Tide / Current Tables for Meadow Point, Shilshole Bay, Washington
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Meadow Point
Click for Map
Wed -- 03:11 AM PDT     5.31 feet Low Tide
Wed -- 05:14 AM PDT     Sunrise
Wed -- 08:09 AM PDT     9.09 feet High Tide
Wed -- 10:48 AM PDT     Moonrise
Wed -- 02:50 PM PDT     -0.63 feet Low Tide
Wed -- 09:11 PM PDT     Sunset
Wed -- 10:10 PM PDT     12.16 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
9.47.565.35.66.47.58.69.18.87.75.93.61.4-0.2-0.60.22.14.67.39.811.512.111.8

Tide / Current Tables for Alki Point, 0.3 miles W of, Washington Current
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Alki Point
Click for Map
Wed -- 12:09 AM PDT     -0.54 knots Max Ebb
Wed -- 04:00 AM PDT     0.00 knots Slack
Wed -- 05:14 AM PDT     Sunrise
Wed -- 05:43 AM PDT     0.25 knots Max Flood
Wed -- 08:04 AM PDT     -0.00 knots Slack
Wed -- 10:48 AM PDT     Moonrise
Wed -- 11:41 AM PDT     -0.61 knots Max Ebb
Wed -- 03:14 PM PDT     0.00 knots Slack
Wed -- 06:18 PM PDT     0.83 knots Max Flood
Wed -- 09:11 PM PDT     Sunset
Wed -- 10:05 PM PDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.5-0.5-0.4-0.200.20.20.20-0.2-0.4-0.6-0.6-0.5-0.3-0.10.30.60.80.80.60.40-0.3

Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of PacificNorthwest    EDIT
Geos

Wind Forecast for Seattle, WA (3,6,7,8)
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Ground Weather Radar Station Seattle/Tacoma, WA
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weather_mapweather_map weather_map

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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.