Sunday, August19, 2018 L-36.com


Marine Weather and Tides
Enetai, WA

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Sunrise 6:10AMSunset 8:17PM Saturday August 18, 2018 11:03 PM PDT (06:03 UTC) Moonrise 1:42PMMoonset 11:27PM Illumination 53% 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- 905 Pm Pdt Sat Aug 18 2018
Tonight..N wind 10 kt or less. Wind waves 1 ft or less.
Sun..N wind 10 kt or less. Wind waves 1 ft or less. Areas of smoke.
Sun night..N wind 10 kt or less. Wind waves 1 ft or less. Smoky.
Mon..N wind 5 to 15 kt. Wind waves 2 ft or less.
Mon night..NE wind 5 to 15 kt. Wind waves 2 ft or less.
Tue and Tue night N wind 10 kt or less. Wind waves 1 ft or less.
Wed..S wind 10 to 20 kt. Wind waves 3 ft or less.
Thu..Variable wind 10 kt or less. Wind waves 1 ft or less.
PZZ100 905 Pm Pdt Sat Aug 18 2018
Synopsis for the northern and central washington coastal and inland waters..Higher pres over british columbia with lower pres over oregon will result in northerly flow through Tuesday. Strong onshore flow will develop on Wednesday. Meanwhile, expect wildfire smoke to drift across the waters through Tuesday night.


7 Day Forecast for Marine Location Near Enetai, WA
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location: 47.56, -122.61     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 190451
afdsew
area forecast discussion
national weather service seattle wa
951 pm pdt Sat aug 18 2018

Synopsis A weak low pressure system will bring a threat of
isolated thunderstorms to mainly the cascades on Sunday. This
system will exit the area on Monday but the air mass may remain
unstable enough for a continued risk of thunderstorms over the
cascades. High pressure aloft will prevail on Tuesday. Meanwhile,
northerly flow will bring wildfire smoke to the area through
midweek for deteriorating air quality.

Short term
A weak upper level trof offshore will move over the CWA overnight.

This system will be over the area during the day Sunday, and may
touch off an isolated high-based thunderstorm or two over mainly
the central cascades in the afternoon and or evening. Little, if
any, rainfall is expected from any thunderstorm that develops,
hence the fire weather concern.

The upper level trof will move into eastern wa early Monday
morning. However, the flow will remain weakly cyclonic over the
eastern part of the cwa. This should keep instability over the
cascades for a continued slight risk of thunderstorms.

An upper level ridge centered offshore will provide the region
with north or northeasterly flow aloft Monday afternoon through
Tuesday. The low level flow will be light northerly or offshore;
thus, expect above normal daytime temps. The fly in the ointment?
wildfire smoke. If the smoke becomes as thick as last Tuesday and
Wednesday, high temps will end up cooler than forecast.

Concerning wildfire smoke: there is an air quality ALERT in effect
for the entire CWA until Wednesday afternoon due to deteriorating
air quality from wildfire smoke.

Long term from the prev discussion
Models differ on the timing of the push Wednesday. The thermal
trough appears to still be over interior western washington
Wednesday morning, not shifting east of the cascades until late in
the day. Smoke could hang on across some interior areas into the
afternoon then begin to mix out as onshore flow increases. The air
mass over the cascades could become unstable during the afternoon
just ahead of the push, so thunderstorms could develop but push
off to the east by evening.

A trough arrives Thursday with some showers and cooler temperatures.

Onshore flow will continue into Friday, but any showers would be limited
to the mountains at best. Northwesterly flow may persist into Saturday
with some onshore flow but also ridging off to the west. Expect
temperatures to run near average by the end of the week. Mercer

Aviation
A weak upper level trof offshore will move over area overnight for
light southwest flow aloft. The low level flow will be light
northerly or offshore. Expect areas of lifr CIGS ifr vsbys, mainly
over the coast, thru midmorning Sunday.

Meanwhile, smoke from wildfires will grdlly overspread the area
tonight thru Sunday. At this time, expect the smoke to not reduce
the surface vsbys below 4sm.

Ksea...VFR cigs. Wildfire smoke will reduce the visibility down to
5 or 6sm during the day Sunday. Winds will be northerly 5-12 knots,
strongest Sunday afternoon.

Marine
Higher pressure over british columbia with lower pressure over
oregon will result in northerly flow through Tuesday. Strong
onshore flow will develop on Wednesday for the potential for gale
force westerlies over parts of the strait of juan de fuca.

Meanwhile, expect wildfire smoke to drift across the waters
through Tuesday night. At this time, not anticipating the smoke to
reduce visibilities below 4 nm.

Fire weather A critical fire weather pattern is coming up for
western washington, but the shading and therefore stabilizing effect
of smoke will be a significant mitigating factor.

A warm and dry northeasterly flow of continental air from b.C. And
eastern washington will strengthen tonight and peak on Monday
morning. Meanwhile, a somewhat diffuse thermal pressure trough will
peak along the coast on Tuesday morning. Mid-level haines 6
conditions are also expected to develop on Sunday at continue at
times until early Wednesday. This indicates a dry and unstable air
mass between roughly 4,500 and 10,000 ft msl. Meanwhile, min rh
values will drop below 30 percent in places on Monday and Tuesday.

All this would normally trigger the issuance of fire weather
headlines, such as a red flag warning.

However, an impressively thick and dense area of smoke will spread
across western washington tonight through at least Tuesday. This
will keep afternoon temperatures about 5-8 degrees cooler than would
otherwise be expected, thereby acting to stabilize the lower
atmosphere and counter the mid-level haines 6. The smoke shading
will also hold fuel temperatures down a bit. Will therefore use
forecaster discretion and avoid going with any highlights. Bottom
line is that the burning environment will support active fire
behavior, but would not expect anything extreme in the days ahead.

Otherwise, a strike or two of lightning is possible in zone 659 on
Sunday, but nothing widespread. Haner

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 12 mi63 min NNE 6 G 8 63°F 1019.7 hPa (+0.0)55°F
EBSW1 - 9447130 - Seattle, WA 15 mi39 min WNW 2.9 G 7 65°F 56°F1019.2 hPa
TCMW1 - 9446482 - Tacoma Met, WA 22 mi39 min WNW 7 G 8
TCNW1 - 9446484 - Tacoma, WA 23 mi45 min 68°F 56°F1019.4 hPa
46125 24 mi33 min 9.7 56°F 1018.9 hPa54°F
PTWW1 - 9444900 - Port Townsend, WA 39 mi39 min S 2.9 G 5.1 58°F 54°F1020.5 hPa

Wind History for Seattle, Puget Sound, WA, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Bremerton, Bremerton National Airport, WA10 mi67 minNE 610.00 miFair67°F52°F59%1021.1 hPa
Boeing Field - King County International Airport, WA17 mi70 minVar 310.00 miFair70°F52°F53%1019.1 hPa
Seattle, Seattle-Tacoma International Airport, WA18 mi70 minN 89.00 miA Few Clouds70°F51°F51%1020.1 hPa
Tacoma, Tacoma Narrows Airport, WA20 mi70 minN 710.00 miFair68°F50°F53%1019.1 hPa
Renton Municipal Airport, WA21 mi70 minWNW 410.00 miFair with Haze71°F54°F55%1019.4 hPa

Wind History from PWT (wind in knots)
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Last 24hr--CalmCalmCalmCalmCalmCalmCalmCalmS4CalmNE5NE6W3CalmNE7E8NE8NE8NE8NE7NE4NE6NE6
1 day agoS5SW3SW3SW4CalmSW6S4SW5S5S6SW6S8--W8W5W76W8W5W4SW4S3S3SW4
2 days agoSW4SW5SW3SW5SW7SW7W5SW5SW4SW7SW6SW7SW6SW65SW84CalmCalmNE8E6CalmCalmSW3

Tide / Current Tables for Bremerton, Washington
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Bremerton
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Sun -- 12:26 AM PDT     Moonset
Sun -- 06:11 AM PDT     Sunrise
Sun -- 06:46 AM PDT     1.22 feet Low Tide
Sun -- 02:00 PM PDT     9.40 feet High Tide
Sun -- 03:42 PM PDT     Moonrise
Sun -- 06:51 PM PDT     6.34 feet Low Tide
Sun -- 08:15 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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10.69.88.46.54.42.61.51.21.83.14.96.78.29.19.49.18.37.36.56.36.77.58.59.6

Tide / Current Tables for Port Washington Narrows, North Entrance of, Washington Current
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Port Washington Narrows
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Sun -- 12:19 AM PDT     -0.00 knots Slack
Sun -- 12:26 AM PDT     Moonset
Sun -- 04:49 AM PDT     -2.28 knots Max Ebb
Sun -- 06:11 AM PDT     Sunrise
Sun -- 07:15 AM PDT     0.00 knots Slack
Sun -- 10:48 AM PDT     2.13 knots Max Flood
Sun -- 02:45 PM PDT     -0.00 knots Slack
Sun -- 03:42 PM PDT     Moonrise
Sun -- 05:53 PM PDT     -1.07 knots Max Ebb
Sun -- 07:37 PM PDT     0.00 knots Slack
Sun -- 08:15 PM PDT     Sunset
Sun -- 10:22 PM PDT     0.84 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.2-0.4-1.1-1.8-2.2-2.3-1.6-0.30.71.522.11.91.40.6-0.1-0.6-1-1.1-0.50.20.60.80.8

Weather Map and Satellite Images
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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 (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.