Tuesday, November13, 2018 L-36.com


Marine Weather and Tides
Tacoma, WA

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:09AMSunset 4:38PM Monday November 12, 2018 11:31 PM PST (07:31 UTC) Moonrise 11:49AMMoonset 8:48PM Illumination 27% Phase: Waxing Crescent; Moon at 5 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- 837 Pm Pst Mon Nov 12 2018
Tonight..S wind 10 to 15 kt. Wind waves 2 ft or less. Areas of fog after midnight.
Tue..S wind 10 to 20 kt. Wind waves 1 to 3 ft. Areas of fog in the morning.
Tue night..S wind 10 to 20 kt rising to 15 to 25 kt after midnight. Wind waves 2 to 4 ft. A chance of rain.
Wed..S wind 10 to 20 kt becoming 5 to 15 kt in the afternoon. Wind waves 1 to 3 ft.
Wed night..S wind to 10 kt. Wind waves 1 ft or less.
Thu..S wind to 10 kt becoming 5 to 15 kt in the afternoon. Wind waves 2 ft or less.
Thu night..S wind 5 to 15 kt in the evening becoming light. Wind waves 2 ft or less.
Fri..N wind to 10 kt. Wind waves 1 ft or less.
Sat..N wind to 10 kt. Wind waves 1 ft or less.
PZZ100 837 Pm Pst Mon Nov 12 2018
Synopsis for the northern and central washington coastal and inland waters..Offshore flow will persist tonight with high pressure inland and lower pressure offshore. A weak front will cross the area Tuesday night into Wednesday for brief onshore flow. A second weak system will clip the area on Thursday. Offshore flow will return this weekend.


7 Day Forecast for Marine Location Near Tacoma, WA
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location: 47.27, -122.43     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 130535
afdsew
area forecast discussion
national weather service seattle wa
935 pm pst Mon nov 12 2018

Update
No notable changes necessary to the forecast this evening. An
overall tranquil night is in store for the local area tonight as
mid and upper level ridging continues to dominant the sensible
weather pattern. Recent IR satellite imagery shows an increase in
mid and higher level cloud coverage from the west, ahead of the
next storm system. This pattern will continue thru tonight. In
turn, these clouds may help limit the development for fog as well
as keep temps from plummeting. Thru the overnight hours the ridge
axis will continue to shift east, setting up a transition to sw
flow aloft by daybreak Tuesday. Rain showers look to still reach
coastal locations by late morning and venture east thru the
afternoon and evening. Please see the previous discussion for
further details.

Kovacik

Prev discussion issued 300 pm pst Mon nov 12 2018

Synopsis An upper ridge will keep the western washington dry
tonight and into Tuesday. A front will bring light rain to the coast
by Tuesday afternoon, spreading inland Tuesday night and Wednesday.

Another dry period with areas of overnight and morning fog is
expected Thursday through Saturday. A front may bring some light
rain to the area by late Sunday or early next week.

Short term Some high clouds... And that is about it... In place
over W wa this afternoon as the slowly eastward moving upper level
ridge keeps the weather fairly benign over the area. The inherited
wind advisory from this morning was allowed to expire. Gusts in the
east puget sound lowlands still kicking up to around 40 mph in some
locations... But with criteria being 45 mph... Model pressure
gradients indicating some relaxation and a slow but steady downward
trend in wind speeds gusts... Felt pretty confident in allowing it to
expire and... Thankfully... That reasoning still seems to be holding
up.

The upper level ridge will push east enough to allow the next system
to make its way to the coast Tuesday afternoon with models in
general agreement on timing and precip amounts coverage. Both models
show things starting to taper off at some point Wed night or early
Thursday morning... But 12z runs agree that a secondary system mostly
to the north of the area will sag down into W wa allowing for
chances of precip to linger even into Friday before exiting the area
completely. Smr

Long term High pressure aloft begins to build offshore
Thursday but its influence does not look to be felt over the area
until Friday afternoon as the ridge axis draws closer to the
coast. This will make for a dry weekend and start to next week.

Models are hinting at the next system out in the day 7 or 8 time
frame... Tuesday or Wednesday depending which model you
consult... ECMWF or GFS respectively. No real surprises with the
disagreement. Neighboring office has bit on to the more aggressive
solution and have tweaked extended grids to remain within
collaboration guidelines... Although hard to get excited about
anything that far out just yet. Smr

Aviation No major aviation concerns overnight tonight as mid
and upper level ridging hangs around until very early Tuesday.

Winds currently turning to the SE across most TAF sites where they
should generally remain thru Tuesday afternoon. An increase in mid
and high level clouds can be noted in recent satellite imagery and
this looks to remain the rule overnight tonight. This could help
limit the potential for fog across the lower puget sound if
current trends do continue. Next weather system will move across
the area from west to east Tuesday with light rain likely.VFR
conditions should dominate this cycle.

Kovacik
ksea... Winds should remain on the south side thru the TAF period
with increasing mid and high levels clouds through Tuesday
morning. Light rain chances will increase late Tuesday afternoon
and evening with CIGS lowering tho still remainingVFR.

Kovacik

Marine Offshore flow will continue thru Tuesday given lower
level high pressure in place across the eastern cascades and lower
pressure across the pacific. Recent obs are beginning to show some
gusts up to small craft across the outer coastal waters and west
entrance to the strait. So current SCA looks good for now.

Offshore flow should lessen by Wednesday as the frontal system
passes thru and eventually become onshore.

Kovacik

Hydrology River flooding is not expected the next 7 days.

Sew watches warnings advisories
Wa... None.

Pz... Small craft advisory until 10 pm pst Tuesday for coastal waters
from CAPE flattery to james island 10 to 60 nm-coastal
waters from CAPE flattery to james island out 10 nm-coastal
waters from james island to point grenville 10 to 60 nm-
coastal waters from james island to point grenville out 10
nm-coastal waters from point grenville to CAPE shoalwater
10 to 60 nm-coastal waters from point grenville to cape
shoalwater out 10 nm-west entrance u.S. Waters strait of
juan de fuca.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TCMW1 - 9446482 - Tacoma Met, WA 1 mi31 min SE 4.1 G 5.1
TCNW1 - 9446484 - Tacoma, WA 1 mi31 min 41°F 53°F1028.9 hPa (+0.7)
46121 16 mi29 min 44°F 1028.5 hPa43°F
EBSW1 - 9447130 - Seattle, WA 23 mi31 min ESE 1.9 G 2.9 51°F 53°F1028.1 hPa (+0.0)
WPOW1 - West Point, WA 27 mi31 min S 5.1 G 6 49°F 1028.3 hPa (+0.0)44°F
46120 34 mi27 min NE 1.9 49°F 1027.5 hPa33°F

Wind History for Tacoma MET, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Tacoma, Tacoma Narrows Airport, WA8 mi38 minN 010.00 miFair41°F39°F93%1028.4 hPa
Tacoma / McChord Air Force Base, WA8 mi93 minN 08.00 miFair34°F34°F100%1028.8 hPa
Seattle, Seattle-Tacoma International Airport, WA13 mi38 minESE 1010.00 miMostly Cloudy51°F23°F33%1028.6 hPa
Pierce County-Thun Field, WA14 mi56 minN 010.00 miFair36°F35°F100%1028.4 hPa
Fort Lewis / Gray U. S. Army Airfield, WA15 mi93 minSE 310.00 miFair35°F34°F100%1028.7 hPa
Boeing Field - King County International Airport, WA19 mi38 minN 010.00 miFair40°F28°F63%1028.1 hPa
Renton Municipal Airport, WA19 mi38 minESE 310.00 miFair45°F30°F58%1028.7 hPa
Bremerton, Bremerton National Airport, WA23 mi35 minN 010.00 miFair33°F32°F96%1030 hPa

Wind History from TIW (wind in knots)
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Last 24hrN8NE6N7N6N6N3CalmN4N6NE33NE4N3N6N33S3SE3CalmCalmCalmW4CalmCalm
1 day agoN5CalmE3N3Calm3E334444N10
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2 days agoSE3SE3CalmCalmCalmCalmN3CalmN3N5NE3NE6N8N10N9NE11
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Tide / Current Tables for Tacoma, Commencement Bay, Washington
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Tacoma
Click for Map
Tue -- 02:08 AM PST     0.30 feet Low Tide
Tue -- 07:11 AM PST     Sunrise
Tue -- 09:49 AM PST     11.89 feet High Tide
Tue -- 12:29 PM PST     Moonrise
Tue -- 03:36 PM PST     6.97 feet Low Tide
Tue -- 04:36 PM PST     Sunset
Tue -- 07:48 PM PST     8.65 feet High Tide
Tue -- 09:45 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.610.30.72.14.26.58.810.611.611.911.410.397.87.177.488.58.68.27.35.9

Tide / Current Tables for Discovery Island, 3.3 miles NE of, Washington Current
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Discovery Island
Click for Map
Tue -- 12:13 AM PST     -1.55 knots Max Ebb
Tue -- 04:17 AM PST     0.00 knots Slack
Tue -- 07:11 AM PST     Sunrise
Tue -- 07:18 AM PST     1.64 knots Max Flood
Tue -- 10:40 AM PST     -0.00 knots Slack
Tue -- 12:30 PM PST     Moonrise
Tue -- 01:59 PM PST     -1.05 knots Max Ebb
Tue -- 04:36 PM PST     Sunset
Tue -- 07:14 PM PST     -0.02 knots Min Ebb
Tue -- 09:45 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-1.5-1.5-1.2-0.7-0.20.61.31.61.61.10.5-0.2-0.6-0.9-1-1-0.7-0.4-0.2-0-0.1-0.3-0.6-1

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.