Sunday, April22, 2018 L-36.com


Marine Weather and Tides
Edmonds, WA

Version 3.4
What's New / NOTES
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.
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.

Sunrise 6:05AMSunset 8:10PM Saturday April 21, 2018 11:59 PM PDT (06:59 UTC) Moonrise 9:44AMMoonset 12:34AM Illumination 44% Phase: First Quarter Moon; Moon at 7 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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PZZ134 Admiralty Inlet- 845 Pm Pdt Sat Apr 21 2018
Tonight..W wind 10 to 20 kt. Wind waves 1 to 3 ft.
Sun..NW wind 5 to 15 kt. Wind waves 2 ft or less.
Sun night..NW wind 5 to 15 kt. Wind waves 2 ft or less.
Mon..NW wind to 10 kt. Wind waves 1 ft or less.
Mon night..NW wind to 10 kt in the evening becoming light. Wind waves 1 ft or less.
Tue..Light wind becoming N to 10 kt in the afternoon. Wind waves 1 ft or less.
Tue night..NW wind to 10 kt. Wind waves 1 ft or less.
Wed..NW wind 5 to 15 kt. Wind waves 2 ft or less.
Thu..Light wind. Wind waves less than 1 ft.
PZZ100 845 Pm Pdt Sat Apr 21 2018
Synopsis for the northern and central washington coastal and inland waters..Onshore flow will weaken tonight and early Sunday. A thermally induced trough of low pressure will set up along the oregon and washington coasts from Sunday night through Wednesday morning, leading to light northerly offshore flow.

7 Day Forecast for Marine Location Near Edmonds, WA
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location: 47.89, -122.41     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 220423
afdsew
area forecast discussion
national weather service seattle wa
923 pm pdt Sat apr 21 2018

Synopsis An upper ridge will build offshore Sunday for a sunny
afternoon. The ridge will move inland Monday, bringing a stretch
of sunny warm days that should continue through Thursday. An upper
low moving into oregon on Friday should result in cooler weather
and more clouds.

Short term Surface high pressure will nose into western
washington from the pacific through Sunday. Weakening onshore flow
and increasing northerly flow will lead to an overall clearing
trend over the next 30 hours, aided by large-scale subsidence.

Late Sunday, an upper ridge axis will move inside 130w, and a
thermal pressure trough will develop along the oregon and
washington coast on Sunday night. The upper ridge axis will pass
overhead on Monday and into far eastern washington on Tuesday, but
the low-level offshore flow will continue all the way into
Wednesday. Several days of offshore flow will lead to a
substantial warming trend, especially with afternoon temperatures.

High temperatures are forecast to reach 70f on Monday over the
coastal side of the olympic peninsula. By Tuesday, 70+ degree
temperatures will expand to include the i-5 corridor from everett
southward, with mid-upper 70s forecast over southwest washington.

Otherwise, the offshore flow and upper level high pressure will
dry out the air mass, so few or no clouds are expected from
Sunday evening through at least Wednesday. Haner

Long term From previous discussion: the upper ridge will
remain over the region Wednesday and Thursday, with light offshore
flow continuing, and the lower part of the atmosphere warming. On
Thursday, the 850 mb temperatures should be around +14c; that
should be the warmest day over the interior lowlands, with highs
ranging from the upper 60s in the north to the lower 80s in the
south. The pattern will probably break down Friday and Saturday,
as an upper low begins moving northeast from the california
offshore waters into oregon. That should at least induce a switch
to onshore flow, resulting in cooler weather with highs in the
upper 50s and 60s. It could produce some showers as well. Mcdonnal

Aviation An upper ridge axis will develop off the coast on
Sunday, and surface high pressure will nose into western
washington on Sunday. Moderate northwest flow aloft tonight,
becoming northerly on Sunday. Further scattering of clouds is
expected through Sunday. The air mass will become increasingly dry
and stable.

Ksea... Northerly surface wind component for the next 30+ hours.

Clouds will scatter fairly quickly through 07z. Just enough low-
level moisture on Sunday morning that a few clouds in the
1,500-2,000 foot range cannot be ruled out in the first few hours
after sunrise on Sunday, but this should be short-lived. By late
Sunday morning, confidence is high that clear skies will be in
place and then persist for a few days. Haner

Marine Onshore flow will weaken tonight and early Sunday. Seas
around 10 feet over the coastal waters will slowly subside
overnight.

A thermally induced trough of low pressure will set up
along the oregon and washington coasts from Sunday night through
Wednesday morning, leading to light northerly offshore flow. Haner

Sew watches warnings advisories
Wa... None.

Pz... Small craft advisory for hazardous seas until 3 am pdt Sunday
for coastal waters from CAPE flattery to james island 10 to
60 nm-coastal waters from james island to point grenville
10 to 60 nm-coastal waters from point grenville to cape
shoalwater 10 to 60 nm.

Small craft advisory for rough bar until 3 am pdt Sunday for
grays harbor bar.

Small craft advisory for hazardous seas until midnight pdt
tonight for coastal waters from CAPE flattery to james
island out 10 nm-coastal waters from james island to point
grenville out 10 nm-coastal waters from point grenville to
cape shoalwater out 10 nm-west entrance u.S. Waters strait
of juan de fuca.

Small craft advisory until 3 am pdt Sunday 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
46120 9 mi41 min NE 7.8 48°F 1029.5 hPa38°F
WPOW1 - West Point, WA 16 mi60 min ENE 7 G 9.9 47°F 1030.4 hPa (+0.5)37°F
EBSW1 - 9447130 - Seattle, WA 20 mi42 min W 1 G 1.9 49°F 48°F1030.4 hPa
PTWW1 - 9444900 - Port Townsend, WA 24 mi48 min SW 5.1 G 8 46°F 49°F1031.3 hPa
SISW1 - Smith Island, WA 37 mi70 min W 19 G 23 48°F 1030.1 hPa (+0.5)40°F
PBFW1 - Padilla Bay Reserve, WA 40 mi90 min NNW 1.9 48°F 1030 hPa37°F
TCMW1 - 9446482 - Tacoma Met, WA 42 mi48 min NE 8 G 11
TCNW1 - 9446484 - Tacoma, WA 43 mi48 min 50°F 49°F1030 hPa
46121 45 mi48 min 49°F 1029.6 hPa42°F

Wind History for Seattle, Puget Sound, WA, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Everett Snohomish County, WA7 mi67 minNNW 710.00 miPartly Cloudy45°F37°F77%1030.3 hPa
Arlington Municipal Airport, WA23 mi64 minN 010.00 miFair42°F36°F79%1031.3 hPa

Wind History from PAE (wind in knots)
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Last 24hrS17S20
G24
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S12S11S9SE3E54E6E5SW6NW5NW6NW8NW4N8NW5NW4NW4N3NW7NW7
1 day agoN5N4N3CalmCalmCalmE5SE4SE8SE6SE8SW6S14S10SE12S12
G19
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G25
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2 days agoNW4CalmNW3CalmW3NW3CalmNW3CalmW6NW5N5W5W5NW8NW7NW4NW6NW6NW5NW5NW3N3N6

Tide / Current Tables for Glendale, Whidbey Island, Washington
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Glendale
Click for Map
Sun -- 02:29 AM PDT     Moonset
Sun -- 05:02 AM PDT     6.72 feet Low Tide
Sun -- 06:06 AM PDT     Sunrise
Sun -- 09:55 AM PDT     9.01 feet High Tide
Sun -- 11:49 AM PDT     Moonrise
Sun -- 02:46 PM PDT     First Quarter
Sun -- 04:51 PM PDT     -0.50 feet Low Tide
Sun -- 08:09 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
10.59.997.976.76.97.58.28.898.67.45.63.51.4-0.1-0.50.31.94.16.48.49.9

Tide / Current Tables for Apple Cove Point, 0.5 mile E of, Washington Current
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Apple Cove Point
Click for MapFlood direction 168 true
Ebb direction 8 true

Sun -- 02:11 AM PDT     -0.59 knots Max Ebb
Sun -- 02:29 AM PDT     Moonset
Sun -- 06:07 AM PDT     Sunrise
Sun -- 06:36 AM PDT     0.00 knots Slack
Sun -- 07:56 AM PDT     0.12 knots Max Flood
Sun -- 09:34 AM PDT     -0.00 knots Slack
Sun -- 11:50 AM PDT     Moonrise
Sun -- 01:42 PM PDT     -0.85 knots Max Ebb
Sun -- 02:46 PM PDT     First Quarter
Sun -- 05:57 PM PDT     0.00 knots Slack
Sun -- 08:10 PM PDT     Sunset
Sun -- 08:59 PM PDT     0.69 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.2-0.5-0.6-0.6-0.4-0.3-0.10.10.10.1-0.1-0.4-0.6-0.8-0.8-0.8-0.6-0.300.40.60.70.60.4

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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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Seattle, WA (2,6,7,8)
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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.