Monday, September24, 2018 L-36.com


Marine Weather and Tides
Vashon, WA

Version 3.4
What's New / NOTES
9/17/2018 XTide broke when 1and1 "upgraded" my server. It has been esculated. I am sorry for the problem.

Sunrise 6:58AMSunset 7:03PM Monday September 24, 2018 9:59 AM PDT (16:59 UTC) Moonrise 6:22PMMoonset 5:19AM Illumination 100% Phase: Full Moon; Moon at 15 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- 848 Am Pdt Mon Sep 24 2018
Today..Light wind becoming ne to 10 kt in the afternoon. Wind waves 1 ft or less.
Tonight..N wind to 10 kt becoming ne after midnight. Wind waves 1 ft or less.
Tue..N wind 5 to 15 kt. Wind waves 2 ft or less. Areas of fog in the morning.
Tue night..N wind 5 to 15 kt. Wind waves 2 ft or less.
Wed..N wind 5 to 15 kt. Wind waves 2 ft or less.
Wed night..N wind to 10 kt. Wind waves 1 ft or less.
Thu..N wind to 10 kt becoming light. Wind waves 1 ft or less.
Fri..N wind 5 to 15 kt. Wind waves 2 ft or less.
PZZ100 848 Am Pdt Mon Sep 24 2018
Synopsis for the northern and central washington coastal and inland waters..Northerly flow will continue this week with high pressure in control.


7 Day Forecast for Marine Location Near Vashon, WA
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location: 47.4, -122.46     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 241608
afdsew
area forecast discussion
national weather service seattle wa
905 am pdt Mon sep 24 2018

Synopsis An offshore upper level ridge will produce sunny, warm
days and cool, clear nights through Saturday. Northerly low level
flow will become offshore Thursday into Friday. The offshore ridge
will slowly weaken late in the week with a weather system moving
into the area Sunday.

Short term The areas of stratus and fog that formed
overnight will clear this morning to sunny skies. The offshore upper
level ridge will slowly shift inside of 140w this afternoon and
evening which will help boost heights over western washington. At
low levels, pressure gradients will become more northerly later
today and linger into Tuesday which will help keep high temperatures
in the mid to near 70 today despite the rising upper level heights
and sunny skies. Skies will remain mostly clear tonight, with light
winds so that areas of valley fog will once again form Tuesday
morning, especially in the southwest interior. Lows Tuesday morning
will be chilly again, in the upper 30s to near 50. Morning fog will
once again burn off quickly Tuesday morning, to sunny skies with
highs on Tuesday warming a bit over Monday's highs into the mid 70s
at some locations. Tuesday night and Wednesday will much the same -
light northerly winds, chilly overnight temperatures, morning fog
giving way to sunny skies and normal to above normal high
temperatures.

Long term From previous discussion... Extended models continue to
be inconsistent in their solutions. There is some general agreement
with the upper level ridge gaining amplitude Thursday and Friday
with the ridge drifting west. Both the GFS and ECMWF on the 00z run
turn the surface gradients offshore Thursday and Friday. This
solution has come and gone in the models for the last few days but
with some consensus this morning have increased the high
temperatures a little for Thursday and Friday even with the 500 mb
heights falling in response to the westward movement of the ridge.

Highs Thursday and Friday remaining in the mid 60s to mid 70s. If
the offshore flow gets strong enough the warmest locations will be
along the coast.

Ridge continuing to drift west and north over the weekend with an
upper level trough digging south along the british columbia
coastline arriving in western washington Saturday night or Sunday.

Some timing and intensity differences this far out in the model
run. At this point have added pops to Saturday night and increased
the pops on Sunday but still kept them in the chance category.

Temperatures will be cooler over the weekend with highs back down
into 60s. Felton

Aviation Northwest flow aloft continues today as high pressure
offshore builds into the region. At the surface, flow will turn more
northerly. Patchy stratus will dissipate this morning withVFR
conditions expected across the area today. Less cloud coverage
expected Tuesday morning but may see a brief period of ifr lifr
again at kolm and across portions of the southwest interior.

Ksea...VFR conditions expected through the period. Light and
variable winds this morning will turn northerly after 18z,
increasing to 7 to 10kts this afternoon. Ceo

Marine Northerly flow will prevail this week with high pressure
in control. Winds will be breezy over the coastal waters but will
likely remain below small craft advisory. Onshore flow may return by
the weekend. Ceo

Sew watches warnings advisories
Wa... None.

Pz... None.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TCMW1 - 9446482 - Tacoma Met, WA 9 mi53 min ENE 1 G 1.9
TCNW1 - 9446484 - Tacoma, WA 10 mi53 min 54°F 56°F1025.1 hPa
EBSW1 - 9447130 - Seattle, WA 15 mi53 min WNW 5.1 G 5.1 55°F 56°F1024.6 hPa
WPOW1 - West Point, WA 18 mi59 min NNW 1.9 G 2.9 53°F 1024.9 hPa (+0.8)49°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 mi66 minN 010.00 miA Few Clouds55°F45°F69%1025.3 hPa
Tacoma, Tacoma Narrows Airport, WA11 mi66 minN 010.00 miPartly Cloudy51°F48°F92%1025 hPa
Boeing Field - King County International Airport, WA12 mi66 minSSE 310.00 miFair54°F46°F75%1024.7 hPa
Renton Municipal Airport, WA14 mi66 minN 010.00 miFair53°F46°F77%1025.2 hPa
Bremerton, Bremerton National Airport, WA17 mi63 minENE 310.00 miFair54°F46°F75%1026.5 hPa
Tacoma / McChord Air Force Base, WA17 mi2 hrsN 010.00 miFair43°F43°F100%1025.2 hPa
Pierce County-Thun Field, WA22 mi64 minN 010.00 miFair52°F48°F88%1024.7 hPa
Fort Lewis / Gray U. S. Army Airfield, WA22 mi4.1 hrsSE 510.00 miFair40°F39°F100%1024.1 hPa

Wind History from SEA (wind in knots)
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Last 24hrS6Calm6S943W5S6W4NW3NW3NE7NE6CalmCalmE5SE6SE5SE3SE5SE4CalmCalmCalm
1 day agoS13S11S13SW13S14
G22
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G25
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S14S10S9S9S11S9S10SW8SW7SW8SW5S6S6S7
2 days agoSE7S66S11SW106SW9SW8S8SW5W5SW4SW4S8S10
G16
S9S9S10S11SW14
G21
S10S11S12S13
G21

Tide / Current Tables for Burton, Quartermaster Hbr. (inside), Vashon I., Puget Sound, Washington
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Skagit Bay, 1 mile S of Goat Island, Washington Current
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


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 (12,3,4,5)
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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.