Wednesday, September19, 2018 L-36.com


Marine Weather and Tides
Kent, 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 6:51AMSunset 7:12PM Wednesday September 19, 2018 7:40 PM PDT (02:40 UTC) Moonrise 3:55PMMoonset 12:15AM Illumination 76% Phase: Waxing Gibbous; Moon at 10 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- 247 Pm Pdt Wed Sep 19 2018
Tonight..NW wind 5 to 15 kt becoming S after midnight. Wind waves 2 ft or less. A slight chance of showers.
Thu..S wind to 10 kt. Wind waves 1 ft or less. A slight chance of showers in the morning then a chance of showers in the afternoon.
Thu night..S wind 5 to 15 kt becoming 10 to 20 kt after midnight. Wind waves 1 to 3 ft. A chance of rain.
Fri..S wind to 10 kt becoming 5 to 15 kt in the afternoon. Wind waves 2 ft or less.
Fri night..S wind 15 to 25 kt. Wind waves 2 to 4 ft.
Sat..S wind 15 to 25 kt becoming sw 5 to 15 kt in the afternoon. Wind waves 2 to 4 ft subsiding to 2 ft or less in the afternoon.
Sat night..Variable wind 5 to 15 kt becoming S after midnight. Wind waves 2 ft or less.
Sun..Light wind becoming N to 10 kt. Wind waves 1 ft or less.
Mon..N wind to 10 kt. Wind waves 1 ft or less.
PZZ100 247 Pm Pdt Wed Sep 19 2018
Synopsis for the northern and central washington coastal and inland waters..Onshore flow will increase tonight as cold front moves through the area. A stronger pacific frontal system will impact the area Thursday night into Friday with increasing southerly winds over the waters. The flow will turn onshore Friday night and Saturday as this system moves inland. Small craft advisories will likely be needed from time to time heading into the weekend.


7 Day Forecast for Marine Location Near Kent, WA
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location: 47.39, -122.26     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 192146
afdsew
area forecast discussion
national weather service seattle wa
246 pm pdt Wed sep 19 2018

Synopsis A weak upper level trough will give a small chance of
showers tonight as it moves across the area. A warm front will
give some rain, mainly to the coast and northern interior later
Thursday into Thursday night. A cold front, associated with a
stronger low pressure system moving into vancouver island, will
give rain and breezy conditions to the area later Friday into
Friday night. Showers will decrease Saturday into Sunday as high
pressure builds in. Strong offshore flow will give dry conditions
to the area next week.

Short term Radars and satellite imagery show a thin line of
showers associated with a weakening trough over the western
olympic peninsula this afternoon. This band will move inland this
evening. Behind the trough, the air mass is slightly unstable and
will result in partly to mostly cloudy conditions across the area
with a continue small threat of showers. With the increase in
moisture and cloud cover, we expect temperatures tonight to be a
bit more mild that what we saw this morning.

The next upstream system, a weak 1012-1014 low moving eastward
north of a broad upper ridge centered at 135w, will stretch out
into a warm frontal feature offshore that will push onshore over
the southern washington coast Thursday afternoon and lift
northward through the area Thursday night. Highest rain chances
and rainfall amounts are expected to be over the olympic peninsula
and in the interior north of everett to include the northern
cascades. Behind the warm front, expect to see partly to mostly
cloudy skies in the interior on Friday, and it appears that it
will warm up into the upper 60s and lower 70s Friday afternoon
from seattle southward.

12z deterministic model solutions appear more consistent now in
taking a 985-990 mb low onto the NW tip of vancouver island late
Friday afternoon with its associated cold front sweeping eastward
through the area Friday evening. The low itself slowly weakens at
it sags southeastward down vancouver island, but it appears that
there will be sufficient pressure gradient behind the front and to
the south of the low to produce some breezy conditions across the
area Friday night and Saturday. Albrecht

Long term Onshore flow with clouds and showers will gradually
decrease Saturday into Sunday. Showers will gradually become
confined to the mountains and to a possible puget sound
convergence zone, especially later Saturday into early Sunday.

Temperatures will generally range from the mid 40s to mid 50s at
night, then into the 60s during the day.

Models show very good consistency and continuity next week as a
strong upper level ridge builds offshore and low level high
pressure builds over british columbia. The developing pattern
results in the development of moderate to strong low-level
offshore flow beginning on Monday and continuing through the
upcoming week. Expect mostly clear skies next week with
temperatures ranging from the 40s to lower 50s at night to the 70s
during the day. A model blend that favors the warmer GFS solution
was used to construct the temperature forecast. Albrecht

Aviation A weak cold front will push inland tonight for
isolated light showers across western washington. The flow aloft
is northwesterly. Onshore flow will increase behind this front
with low clouds and MVFR ceilings likely overnight. A warm front
will spread rain to the coast Thursday afternoon. 33
ksea... Increasing clouds tonight with MVFR CIGS by 12z. S winds at
the surface to 10 kt. The air mass will remain moist and stable on
Thursday as a warm front clips the region. 33

Marine Onshore flow will increase tonight behind a cold front - small
craft advisory winds are possible through the strait of juan de
fuca and northern inland waters. A stronger pacific frontal system
will arrive Thursday night and Friday with increasing southerly
flow over the waters. The flow will turn onshore Friday night and
Saturday as this system moves inland. Offshore flow will develop
early next week as a thermal trough forms along the coast. 33

Sew watches warnings advisories
Wa... None.

Pz... Small craft advisory from 6 pm this evening to 5 am pdt Thursday
for central u.S. Waters strait of juan de fuca-east
entrance u.S. Waters strait of juan de fuca-northern inland
waters including the san juan islands.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TCMW1 - 9446482 - Tacoma Met, WA 11 mi47 min WSW 9.9 G 14
TCNW1 - 9446484 - Tacoma, WA 12 mi47 min 62°F 56°F1018.4 hPa
EBSW1 - 9447130 - Seattle, WA 15 mi41 min SW 5.1 G 7
WPOW1 - West Point, WA 21 mi41 min NE 9.9 G 12 60°F 1018.1 hPa (-0.0)49°F
46120 27 mi37 min 59°F 1016.7 hPa49°F
46125 41 mi39 min 7.8 57°F 1017.4 hPa51°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, WA4 mi48 minSW 710.00 miMostly Cloudy63°F48°F60%1018.8 hPa
Renton Municipal Airport, WA8 mi48 minS 410.00 miOvercast67°F45°F45%1018 hPa
Boeing Field - King County International Airport, WA10 mi48 minSW 610.00 miMostly Cloudy65°F46°F51%1017.9 hPa
Tacoma, Tacoma Narrows Airport, WA19 mi48 minSW 610.00 miMostly Cloudy59°F51°F75%1018.6 hPa
Pierce County-Thun Field, WA20 mi66 minWNW 310.00 miOvercast63°F51°F68%1018.3 hPa

Wind History from SEA (wind in knots)
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Last 24hrN7N6N7N5N4CalmN4CalmCalmSE3SE6SE4SE5S4SW4S4CalmS7SW9SW8S7W7S6SW7
1 day agoN9N8N9N7NE10NE8NE9N6N5NE6N4N4CalmN5N10--CalmCalmNW8N8NW7W7NW6N9
2 days agoS12SW9SW8SW5S4S3S5S3CalmS3N4CalmW33N7NE7N8W9W8W9NW10W9NW6N9

Tide / Current Tables for Des Moines, 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 (22,6,7,8)
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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.