Monday, October14, 2019 L-36.com


Marine Weather and Tides
Snoqualmie, WA

Version 3.4
NOTICE
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.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 7:23AMSunset 6:24PM Monday October 14, 2019 3:34 AM PDT (10:34 UTC) Moonrise 6:13PMMoonset 7:01AM 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- 246 Am Pdt Mon Oct 14 2019
Today..S wind to 10 kt. Wind waves 1 ft or less. Patchy fog in the morning.
Tonight..NE wind to 10 kt becoming N after midnight. Wind waves 1 ft or less.
Tue..S wind 5 to 15 kt becoming 10 to 20 kt in the afternoon. Wind waves 1 to 3 ft. A slight chance of rain in the afternoon.
Tue night..S wind 10 to 20 kt rising to 15 to 25 kt after midnight. Wind waves 2 to 4 ft.
Wed..S wind 15 to 25 kt. Wind waves 2 to 4 ft.
Wed night..S wind 15 to 25 kt. Wind waves 2 to 4 ft.
Thu..S wind 15 to 25 kt easing to 5 to 15 kt. Wind waves 2 to 4 ft subsiding to 2 ft or less.
Fri..S wind 5 to 15 kt. Wind waves 2 ft or less.
PZZ100 246 Am Pdt Mon Oct 14 2019
Synopsis for the northern and central washington coastal and inland waters..Weak surface ridging will shift east of the cascades later today as the first of a series of vigorous frontal systems approaches the offshore waters. The first front will move across the area early Wednesday with additional fronts every 24 to 36 hours into the weekend.


7 Day Forecast for Marine Location Near Snoqualmie, WA
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location: 47.53, -121.84     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 140331
afdsew
area forecast discussion
national weather service seattle wa
831 pm pdt Sun oct 13 2019

Update A weak upper trough moved inland over the region
earlier today with weak upper ridging building into the area
tonight and Monday. At the surface, low level flow is only weakly
onshore and this will turn offshore once again Monday afternoon
into Monday night as a surface ridge moves east of the cascades
and a broad trough approaches the offshore waters. Apart from some
morning low clouds, Monday should be a pretty nice day with
afternoon Sun and high temperatures near or a little above
average. The focus then turns toward the well-advertised pattern
shift that will bring us a series of vigorous frontal
systems from midweek into the foreseeable future. A 160+ knot jet
will carve out a broad trough over the northeast pacific.

Fortunately, it looks like a progressive pattern with a quick
succession of systems. That keeps flooding concerns at bay for
now. 27

Prev discussion issued 315 pm pdt Sun oct 13 2019
synopsis... An upper level ridge will build offshore tonight before
moving into western washington later Monday. This ridge shifts east
Monday night. Rain out ahead of the first in a series of fronts to
move through the area reaching the coast Tuesday afternoon. The wet
weather will continue into the weekend.

Short term today through Tuesday ... Satellite trend shows clouds
thinning a bit over W wa this afternoon with some peeks of clear sky
a bit inland from the coast. The remainder of the area still has
some cloudiness in place... But with the aforementioned thinning
trend likely still a chance or two for some sunshine to sneak
through.

Models remain pretty consistent showing an upper level ridge over
the pacific already starting to exert its influence over the area
now and allow for dry conditions to persist Monday and even into
Tuesday morning as it makes its way across the area during that
time. The slow approach for the next system looks to be still in the
cards as models agree that the front will make it to the coast as
early as late Tuesday morning... But does not really make a push
inland until Tuesday night.

High temperatures will be on a slight rise... Gaining about a degree
a day... Over the short term thanks in part to the aforementioned
ridge... With most low elevation locations getting into the upper 50s
to around 60 while overnight lows will remain static ranging from
the upper 30s to mid 40s.

Given both consistency and agreement in the models... Minimal changes
made to inherited forecast. Smr
long term Wednesday through Saturday ... With the arrival of the
aforementioned front... Looking at a change for the wetter with
regards to weather over W wa as a series of systems will keep precip
in the forecast throughout the long term. The strongest of these
still looks to be Wednesday bringing breezy to windy
conditions... Particularly to the coast and NW interior. As one would
expect with the Sun going on an extended sabbatical... Temps will
cool throughout the long term with afternoon highs for lowland
locations starting at a high point in the mid 50s Wednesday before
falling into the lower 50s. With the lingering clouds though... This
will be good news for overnight lows as they will remain steadily in
the mid to upper 40s. Smr
aviation... Partly to mostly cloudy skies this afternoon should
clear out finally this evening. That should set the stage for areas
of low clouds and fog patches to develop overnight later tonight
into Monday morning followed by a mostly sunny day on Monday. The
air mass will dry and become stable tonight with clearing before
areas of low level clouds and fog patches develop.

Ksea... The clouds this afternoon should clear out this evening and
then late night and morning low clouds and perhaps some fog is a
good bet for Monday morning.

Marine... Weak high pressure will shift over the area through
Monday. The first in a series of vigorous fronts will arrive late in
the day Tuesday through the end of the week. Periods of small craft
advisory strength winds are likely with gales possible.

Hydrology... A series of wet systems moving through the area
Tuesday night into the weekend will cause rivers to rise, but
flooding is unlikely over the next seven days.

Sew watches warnings advisories
Wa... None.

Pz... None.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WPOW1 - West Point, WA 33 mi35 min SSE 5.1 G 6 50°F 1018.5 hPa (+1.1)49°F
46120 34 mi40 min S 1.9 51°F 1017.2 hPa48°F
TCMW1 - 9446482 - Tacoma Met, WA 35 mi53 min Calm G 1
TCNW1 - 9446484 - Tacoma, WA 35 mi53 min 47°F 56°F1018.8 hPa
46125 49 mi41 min 1.9 48°F 1017.4 hPa46°F

Wind History for Seattle, Puget Sound, WA, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Renton Municipal Airport, WA20 mi42 minN 08.00 miOvercast49°F44°F83%1018.7 hPa
Boeing Field - King County International Airport, WA24 mi42 minESE 410.00 miOvercast48°F44°F86%1018.2 hPa

Link to 5 minute data for KRNT

Wind History from RNT (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmCalmCalmS333SE4S3SW4CalmCalmCalmCalmCalmSE4SE3S3S5Calm
1 day agoCalmCalmCalmCalmCalmCalmCalmCalmNW3N4NW5CalmN4NW4NW5NW6NW7N7NW4NW5N3N5CalmCalm
2 days agoSW3CalmCalmCalmCalmCalmN6N6NW8NW7NW7NW6N6NW5Calm3E3CalmCalmCalmCalmCalmCalmCalm

Tide / Current Tables for Duwamish Waterway, Washington
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Duwamish Waterway
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Mon -- 12:03 AM PDT     1.49 feet Low Tide
Mon -- 06:13 AM PDT     10.04 feet High Tide
Mon -- 07:26 AM PDT     Sunrise
Mon -- 08:02 AM PDT     Moonset
Mon -- 12:12 PM PDT     3.40 feet Low Tide
Mon -- 05:51 PM PDT     10.36 feet High Tide
Mon -- 06:23 PM PDT     Sunset
Mon -- 07:14 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.523.55.67.79.3109.88.97.35.64.13.43.856.88.71010.49.88.46.44.22.2

Tide / Current Tables for Seattle, Washington
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Seattle
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Mon -- 06:13 AM PDT     10.35 feet High Tide
Mon -- 07:26 AM PDT     Sunrise
Mon -- 08:03 AM PDT     Moonset
Mon -- 12:01 PM PDT     3.58 feet Low Tide
Mon -- 05:50 PM PDT     10.68 feet High Tide
Mon -- 06:23 PM PDT     Sunset
Mon -- 07:14 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.62.33.968.19.710.310.197.45.64.13.64.15.57.39.110.310.7108.56.44.12.1

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 (6,6,7,8)
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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.