Wednesday, October17, 2018 L-36.com


Marine Weather and Tides
Manchester, 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 7:31AMSunset 6:18PM Wednesday October 17, 2018 2:42 AM PDT (09:42 UTC) Moonrise 2:33PMMoonset 11:57PM Illumination 54% Phase: First Quarter Moon; Moon at 8 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- 900 Pm Pdt Tue Oct 16 2018
Tonight..N wind to 10 kt. Wind waves 1 ft or less.
Wed..Variable wind to 10 kt in the morning becoming light. Wind waves 1 ft or less. Patchy fog in the morning.
Wed night..NW wind to 10 kt becoming sw after midnight. Wind waves 1 ft or less.
Thu..S wind to 10 kt becoming sw in the afternoon. Wind waves 1 ft or less.
Thu night..Variable wind to 10 kt in the evening becoming light. Wind waves 1 ft or less.
Fri..Light wind. Wind waves less than 1 ft.
Fri night..Light wind. Wind waves less than 1 ft.
Sat..Light wind. Wind waves less than 1 ft.
Sun..Light wind. Wind waves less than 1 ft.
PZZ100 900 Pm Pdt Tue Oct 16 2018
Synopsis for the northern and central washington coastal and inland waters..Surface high pressure centered over southern british columbia with low level offshore flow through Wednesday morning. The high will weaken Wednesday and Thursday with the low level flow becoming light onshore. Northwesterly onshore flow pattern will continue into Saturday.


7 Day Forecast for Marine Location Near Manchester, WA
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location: 47.57, -122.53     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 170451
afdsew
area forecast discussion
national weather service seattle wa
951 pm pdt Tue oct 16 2018

Synopsis High pressure will keep the region dry through the
weekend. Sunny skies will be the rule, but weakening offshore flow
will result in more areas of late night and morning fog and low
clouds beginning Thursday morning. The upper ridge will break
down next week with a change to a wet and blustery weather pattern
around the middle of next week.

Short term Satellite imagery shows clear skies over western
washington at 04z 9 pm this evening. Temperatures have already
cooled off significantly from the highs set only a few hours ago
with mid 40s to mid 50s common across the area.

Nothing new in the first look at the 00z model runs. Upper level
ridge over the area weakening a little on Wednesday before
rebuilding again Thursday into Friday. Low level offshore flow
pattern slowly weakening through Wednesday night with the surface
gradients becoming weakly onshore Thursday. The low level onshore
flow will increase on Friday. With the offshore flow dissipating
more late night and early morning fog developing beginning early
Thursday morning. Temperature wise the weakening offshore flow
will result in a little cooling along the coast on Wednesday with
highs over the interior similar to readings on Tuesday. A little
more cooling over the entire area Thursday and Friday. Highs
Wednesday still well above normal with 60s to mid 70s, cooling to
mostly the 60s for Thursday and Friday. Lows will continue to be
on the cool side with the cooler locations dropping into the mid
30s Wednesday and Thursday morning while the remainder of the area
stays in the 40s. Forecast package in good shape. No update
tonight. Felton

Long term Previous discussion follows. The strong upper ridge
over the area on Friday will gradually weaken and shift inland
over the weekend. A front will approach from the west on Monday
but rain should hold off until Tuesday--and the front looks pretty
weak and could break up. A stronger front looks like it will
reach us Wednesday night or Thursday--but that is outside of the
forecast-- but it looks strong, the ECMWF takes a 949mb low into
the offshore waters on Wednesday, so it seems worth mentioning
that a rapid switch to blustery fall weather is likely for the
middle of next week. The GFS isn't as deep--but it still has a
storm in the 960s heading into haida gwaii next Thursday.

Aviation Upper level ridge over the area with very light
northerly flow aloft. Low level offshore flow will slowly weaken
overnight into Wednesday. Some patchy fog again Wednesday morning
in the usual river valley locations otherwise clear skies.

Ksea... Clear skies. Northerly winds 5 to 10 kts. Felton

Marine High pressure remains in control with offshore flow at
the surface through Wednesday morning. The high will weaken
Wednesday and Thursday with surface flow becoming light onshore.

Northwesterly onshore flow pattern will continue Friday into the
weekend. Ceo felton

Climate 70 degree plus days are rare in seattle after october
15th. Tuesday was only the 22nd time it has happened in 74 years
of records at sea-tac airport. Only 5 days have been warmer than
the 72 degree days Tuesday after october 16th in seattle, 3 74
degree days ( 11 3 2010, 10 17 1989, 11 4 1949 ) and 2 73 degree
days ( 10 23 1992 & 1965 ).

With a forecast high of 70 in seattle tomorrow this would be the
first back to back 70 degree plus days after october 16th in 48
years. The last time it happened was november 2nd and 3rd 1970.

The high of 80 degrees in quillayute today set a record for the
latest 80 degree plus day at quillayute. The old record was
october 14th ( 82 degrees in 1991 ). Felton

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 8 mi43 min N 8 G 8.9 52°F 1023.2 hPa (-0.9)50°F
EBSW1 - 9447130 - Seattle, WA 10 mi43 min Calm G 1 53°F 55°F1022.9 hPa (-0.7)
TCMW1 - 9446482 - Tacoma Met, WA 21 mi43 min ESE 1.9 G 4.1
TCNW1 - 9446484 - Tacoma, WA 22 mi43 min 48°F 55°F1023.3 hPa (-0.6)
46125 24 mi36 min 1.9 49°F 1022.6 hPa47°F
46124 33 mi140 min 55°F
PTWW1 - 9444900 - Port Townsend, WA 39 mi43 min S 1 G 1.9 48°F 51°F1023.8 hPa (-0.9)

Wind History for Seattle, Puget Sound, WA, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Boeing Field - King County International Airport, WA12 mi50 minN 010.00 miFair48°F44°F86%1022.9 hPa
Bremerton, Bremerton National Airport, WA14 mi47 minSW 410.00 miFair40°F37°F93%1024.8 hPa
Seattle, Seattle-Tacoma International Airport, WA15 mi50 minN 010.00 miFair51°F45°F80%1023.4 hPa
Renton Municipal Airport, WA17 mi50 minN 09.00 miFair47°F44°F90%1023.4 hPa
Tacoma, Tacoma Narrows Airport, WA21 mi50 minN 010.00 miFair47°F45°F93%1023.2 hPa

Wind History from BFI (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmCalmCalmCalmNW55N5NW5NW4NW5NW4NW3CalmCalm--CalmCalmCalmCalm
1 day agoCalmCalmCalmSE4CalmSE3Calm34NW6NW6NW5W5N4NW6NW5NW4W3CalmNW4CalmCalmCalmCalm
2 days agoCalmCalmCalmCalmCalmCalmCalm3345NW5NW7NW6NW6N4NW4NW4CalmCalmCalmCalmCalmCalm

Tide / Current Tables for Clam Bay, Rich Passage, Washington
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Clam Bay
Click for Map
Wed -- 05:44 AM PDT     1.74 feet Low Tide
Wed -- 07:32 AM PDT     Sunrise
Wed -- 01:32 PM PDT     10.69 feet High Tide
Wed -- 03:32 PM PDT     Moonrise
Wed -- 06:18 PM PDT     Sunset
Wed -- 07:45 PM PDT     6.22 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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7.66.85.64.22.921.82.33.55.178.71010.610.61097.86.96.36.26.577.6

Tide / Current Tables for Rich Passage, West end, Washington Current
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Rich Passage
Click for Map
Wed -- 03:18 AM PDT     -2.46 knots Max Ebb
Wed -- 06:04 AM PDT     0.00 knots Slack
Wed -- 07:32 AM PDT     Sunrise
Wed -- 09:49 AM PDT     2.31 knots Max Flood
Wed -- 01:57 PM PDT     -0.00 knots Slack
Wed -- 03:32 PM PDT     Moonrise
Wed -- 05:07 PM PDT     -2.03 knots Max Ebb
Wed -- 06:18 PM PDT     Sunset
Wed -- 08:57 PM PDT     0.00 knots Slack
Wed -- 10:11 PM PDT     0.08 knots Max Flood
Wed -- 11:43 PM PDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.8-1.5-2.1-2.4-2.3-1.4-0.10.91.72.22.32.11.60.8-0.1-1-1.7-2-1.8-1.2-0.400.10.1

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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Wind Forecast for Seattle, WA (5,6,7,8)
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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.