Saturday, September21, 2019 L-36.com


Marine Weather and Tides
Mirrormont, WA

Version 3.4
NOTICE
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 6:52AMSunset 7:10PM Saturday September 21, 2019 2:52 PM PDT (21:52 UTC) Moonrise 10:23PMMoonset 1:31PM Illumination 47% Phase: Third Quarter Moon; Moon at 22 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- 857 Am Pdt Sat Sep 21 2019
Today..S wind to 10 kt in the morning becoming light. Wind waves 1 ft or less. Patchy fog in the morning.
Tonight..S wind to 10 kt. Wind waves 1 ft or less. A slight chance of rain.
Sun..S wind 5 to 15 kt becoming to 10 kt in the afternoon. Wind waves 2 ft or less. Rain likely in the morning then showers in the afternoon.
Sun night..S wind to 10 kt. Wind waves 1 ft or less.
Mon..S wind to 10 kt. Wind waves 1 ft or less.
Mon night..S wind to 10 kt becoming 5 to 15 kt after midnight. Wind waves 2 ft or less.
Tue..Variable wind to 10 kt. Wind waves 1 ft or less.
Wed..Light wind becoming variable to 10 kt. Wind waves 1 ft or less.
PZZ100 857 Am Pdt Sat Sep 21 2019
Synopsis for the northern and central washington coastal and inland waters..Light onshore flow will continue with weak high pressure over the area. A frontal system will approach the area this evening and move over the area on Sunday. Another frontal system will move through the area Monday night.


7 Day Forecast for Marine Location Near Mirrormont, WA
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location: 47.47, -122     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 211631
afdsew
area forecast discussion
national weather service seattle wa
931 am pdt Sat sep 21 2019

Synopsis Upper level ridge over the area will shift east later
today. A cold front will spread rain through the area Sunday
morning. A weaker system will move through Monday night. After a
break a cool upper level trough will arrive late in the week
keeping unsettled weather in the forecast.

Short term today through Monday Satellite imagery shows areas
of low clouds over western washington this morning with plenty of
breaks already showing up in the imagery. Temperatures at 9 am 16z
were in the mid 50s to lower 60s.

Looks like a split for the weekend weather wise with a dry day
today and a wet day on Sunday. Upper level ridge over the area
this morning shifting east this afternoon and evening. Light flow
in the lower levels combined with a shallow marine layer this
morning will result in the lower cloud cover scattering out this
afternoon. With some sunshine highs will be near normal, in the
60s and lower 70s.

Increasing clouds this evening as the cold front, currently back
near 134w, approaches the area. Rain out ahead of the front
starting along the coast around midnight with the leading edge of
the rain near the seattle area by 12z Sunday. Lows tonight in the
50s.

Cold front moving through western washington Sunday morning midday
with the upper level trough axis right behind the front for Sunday
afternoon. Rain changing to showers forecast on track for Sunday.

Highs will only be in the lower to mid 60s.

Upper level ridge trying to rebuild Sunday night into Monday with
a weak system moving over the top of the ridge into western
washington late Monday. The ridge will take a toll on the system
with the best chance for light rain over the northern sections.

Highs once again in the lower to mid 60s.

Will increase the rain chances 06z-12z Sunday. Remainder of the
forecast unchanged this morning. Felton

Long term Tuesday through Friday Previous discussion follows. There
are hints at a break in the action Tuesday as a large scale
trough shifts more toward the center of the us... The ECMWF showing
this a bit better than the current gfs... But models come back in
agreement that another large scale trough will begin to set up
shop over the area starting Wednesday night with a series of upper
level lows dipping down into the area and making for a generally
wet remainder of the week. Models do disagree on timings and paths
of these lows however... So a break or two in the action is
certainly possible. For example... The GFS tries to push an upper
level low south of the area to the ca or border Friday which would
make for a potentially dry day... But the ECMWF keeps the system
further north close to the wa or border which would keep the
potential for rain going. Opting to split the difference and thus
advertise a generally wet pattern until a more concrete consensus
emerges. Temps will continue their cooling trend through this
period. Lowland highs will start off Tuesday in the lower to mid
60s but fall into the mid to upper 50s Thursday which is cooler
than what would normally be seen this time of year. Smr

Aviation Northerly flow aloft will become more westerly and
southwesterly today as an upper level ridge starts to exit the
area, making way for an incoming upper level trough. Current
satellite imagery indicates areas of patchy fog and low stratus
across portions of the sound, yielding lifr ceilings for kpwt and
kpae. Otherwise, there's a mixed bag of MVFR ifr conditions for
other terminals across the sound, coast, and southwest interior.

Only kbli is experiencingVFR conditions at this hour. Expect
gradual improvement of conditions throughout the morning hours to
vfr this afternoon.

The next frontal system will approach western washington tonight
and move inland during the overnight hours, brining rain and lower
ceilings to the region. Expect winds to be southerly around 4 to
8 knots today.

Ksea... Current conditions MVFR. Expect stratus to clear by midday
and improve toVFR conditions by this afternoon. Winds southerly
4 to 8 knots. Sb

Marine Lighter onshore flow will persist through the day
today. A frontal system will then move through the area late
tonight through Sunday. Small craft advisory southerlies will be
likely for the coastal waters ahead of the front, with small craft
advisory westerlies expected in its wake. SCA level westerlies
will also be possible in the central and eastern portions of the
strait of juan de fuca on Sunday night following the frontal
passage. Another system will slide through the region Monday into
Monday night. Sb

Hydrology The daily hydrology discussion has ended until the
start of the next rainy season; it will only be updated as needed
until then.

Sew watches warnings advisories
Wa... None.

Pz... Small craft advisory from 2 am Sunday to 2 am pdt Monday 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 from 2 am to 8 am pdt Sunday 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.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TCMW1 - 9446482 - Tacoma Met, WA 26 mi59 min WNW 6 G 8.9
TCNW1 - 9446484 - Tacoma, WA 26 mi59 min 67°F 56°F1019.4 hPa
WPOW1 - West Point, WA 27 mi53 min SW 8 G 8 61°F 1019.4 hPa (-1.3)54°F
46120 29 mi28 min SSE 1.9 60°F 1018.1 hPa55°F
46121 41 mi31 min 62°F 1018.9 hPa56°F
46125 45 mi41 min 3.9 62°F 1018.3 hPa54°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, WA12 mi60 minVar 410.00 miA Few Clouds68°F52°F57%1019.4 hPa
Boeing Field - King County International Airport, WA16 mi60 minSSW 610.00 miMostly Cloudy68°F53°F59%1019.2 hPa
Seattle, Seattle-Tacoma International Airport, WA17 mi60 minWSW 710.00 miMostly Cloudy67°F53°F61%1020 hPa

Link to 5 minute data for KRNT

Wind History from RNT (wind in knots)
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Last 24hrCalmNW4N3CalmCalmCalmS3S3E3E3SE3CalmS4S3CalmS3CalmCalm4S6S5S654
1 day agoN3CalmNW3W3CalmW3CalmW3CalmS5S3SE3S4SE3S4SE3S3CalmCalm3S3Calm3Calm
2 days agoN8N10N8NW9N8N6N3CalmCalmCalmS3CalmSE3CalmS3S4S3S4Calm33Calm5N4

Tide / Current Tables for Duwamish Waterway, Washington
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Duwamish Waterway
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Sat -- 04:32 AM PDT     0.78 feet Low Tide
Sat -- 06:54 AM PDT     Sunrise
Sat -- 11:38 AM PDT     9.30 feet High Tide
Sat -- 02:32 PM PDT     Moonset
Sat -- 05:01 PM PDT     6.36 feet Low Tide
Sat -- 07:09 PM PDT     Sunset
Sat -- 07:43 PM PDT     Last Quarter
Sat -- 09:56 PM PDT     9.16 feet High Tide
Sat -- 11:24 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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6.85.13.31.80.90.91.83.45.278.49.29.38.98.27.36.66.46.67.48.28.99.28.8

Tide / Current Tables for Restoration Point, 0.6 miles ESE of, Washington Current
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Restoration Point
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Sat -- 01:17 AM PDT     -0.78 knots Max Ebb
Sat -- 05:24 AM PDT     0.00 knots Slack
Sat -- 06:54 AM PDT     Sunrise
Sat -- 07:43 AM PDT     0.47 knots Max Flood
Sat -- 11:36 AM PDT     -0.00 knots Slack
Sat -- 02:33 PM PDT     Moonset
Sat -- 02:36 PM PDT     -0.40 knots Max Ebb
Sat -- 06:30 PM PDT     0.00 knots Slack
Sat -- 07:09 PM PDT     Sunset
Sat -- 07:19 PM PDT     0.09 knots Max Flood
Sat -- 07:43 PM PDT     Last Quarter
Sat -- 09:20 PM PDT     -0.00 knots Slack
Sat -- 11:24 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.7-0.8-0.8-0.6-0.4-0.10.20.40.50.40.30.1-0.1-0.3-0.4-0.4-0.3-0.2-0.10.10.10-0.1-0.3

Weather Map
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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.
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Wind Forecast for Seattle, WA (17,4,5,8)
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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.