Tuesday, August21, 2018 L-36.com


Marine Weather and Tides
Keyport, WA

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Sunrise 6:14AMSunset 8:12PM Tuesday August 21, 2018 8:50 AM PDT (15:50 UTC) Moonrise 4:32PMMoonset 12:44AM Illumination 77% 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- 844 Am Pdt Tue Aug 21 2018
Today..NE wind to 10 kt becoming N in the afternoon. Wind waves 1 ft or less. Smoke.
Tonight..N wind 5 to 15 kt in the evening becoming light. Wind waves 2 ft or less. Smoke.
Wed..Light wind becoming N to 10 kt in the afternoon. Wind waves 1 ft or less. Smoke.
Wed night..NW wind 5 to 15 kt becoming S to 10 kt after midnight. Wind waves 2 ft or less.
Thu..S wind 5 to 15 kt easing to 10 kt in the afternoon. Wind waves 2 ft or less.
Thu night..NW wind 5 to 15 kt becoming S after midnight. Wind waves 2 ft or less.
Fri..S wind to 10 kt becoming variable. Wind waves 1 ft or less.
Sat..Variable wind to 10 kt becoming se. Wind waves 1 ft or less.
PZZ100 844 Am Pdt Tue Aug 21 2018
Synopsis for the northern and central washington coastal and inland waters..A thermally induced trough of low pres along the washington coast this morning will weaken during the day. The flow will become nearly flat overnight. Strong onshore flow is still expected to develop on Wednesday. Onshore or westerly flow will continue on Thursday. Meanwhile, the smoke is expected to begin slowly clearing from the west on Wednesday.


7 Day Forecast for Marine Location Near Keyport CDP, WA
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location: 47.7, -122.63     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 210958
afdsew
area forecast discussion
national weather service seattle wa
258 am pdt Tue aug 21 2018

Synopsis Offshore wind flow will continue to bring smoke into
western washington through Wednesday. A turn to cooling onshore
flow is expected Wednesday night and Thursday. Smoke is expected
to gradually decrease on Thursday. Onshore flow will continue
Friday and Saturday. An upper low could move across the area on
Sunday, bringing a few showers that could linger into Monday.

Short term Low level offshore flow today will switch to
onshore during the day Wednesday. This should help clear smoke
out of the area Wednesday night and Thursday. Until then, smoke
and poor air quality will continue. An air quality ALERT is in
effect through Wednesday. It may need to be extended into
Thursday. That decision will be made on Wednesday.

Highs today will be above normal but 5-10 degrees cooler than
guidance due to all the smoke. The coast will cool to near normal
on Wednesday as onshore flow develops but the interior should see
minor cooling at best.

An upper trough will move over the area on Thursday but it looks
dry for the most part. A marine push will spread low clouds
inland Wednesday night and cool highs to near or slightly below
normal all areas on Thursday. There could also be some drizzle
Wednesday night and Thursday morning - mainly towards the coast.

Schneider

Long term An upper trough will push east of the area Friday
with low level onshore flow continuing and slightly below normal
highs. There might be a few showers but mostly it looks dry with
morning clouds and partial afternoon sunshine.

A couple of additional upper level troughs will swing through the
area this weekend and into early next week. This will maintain
cool weather across the area with a chance of showers. The best
chance of showers appears to be on Sunday although confidence in
the details is not high for now. Schneider

Aviation Upper level ridging continues to build into the
region today with northeast flow aloft. Low level flow has turned
offshore overnight with little in the way of stratus near the
coast. Smoky conditions will continue today with a substantial
smoke layer above 4,000 feet. Surface visibilities in smoke are
expected to be generally in the 3- 5sm range.

Ksea... Visibility 3-5sm in fu with a smoke layer ovc030-050.

Surface winds n-ne winds to 10 kt. 27

Marine A thermally induced trough of low pressure along the
wa coast early this morning will weaken during the day. The flow
will become nearly flat overnight. Strong onshore flow will
develop on Wednesday for the possibility of gale force westerlies
over parts of the strait of juan de fuca Wednesday night. Onshore
or westerly flow will then continue on Thursday but will be a
little weaker.

Meanwhile, smoke from wildfires is expected to begin slowly
clearing from the west on Wednesday. It should be completely out
of the area by Friday.

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 11 mi51 min NE 2.9 G 2.9 59°F 1018.4 hPa (-0.0)55°F
46125 14 mi37 min 1.9 58°F 1017.6 hPa54°F
EBSW1 - 9447130 - Seattle, WA 17 mi45 min NW 1.9 G 2.9 59°F 56°F1018.2 hPa
PTWW1 - 9444900 - Port Townsend, WA 29 mi51 min Calm G 1 57°F 54°F1018.7 hPa (+0.3)
TCMW1 - 9446482 - Tacoma Met, WA 31 mi51 min SSE 2.9 G 4.1
TCNW1 - 9446484 - Tacoma, WA 32 mi51 min 62°F 58°F1018.1 hPa (+0.6)
SISW1 - Smith Island, WA 44 mi61 min NE 8 G 8.9 60°F 1018.3 hPa (+0.5)54°F

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, WA17 mi55 minN 03.00 miFair with Haze63°F52°F68%1019.8 hPa
Boeing Field - King County International Airport, WA21 mi58 minN 03.00 miHaze Smoke66°F55°F70%1018.1 hPa
Everett Snohomish County, WA24 mi58 minE 43.00 miSmoke Haze70°F50°F49%1018.5 hPa

Wind History from PWT (wind in knots)
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Last 24hrE6CalmNE5NE8NE4NE10NE9NE9NE9NE8E3CalmCalmCalm--SW3CalmCalmNE5CalmCalmCalmCalmCalm
1 day agoNE6NE7NE6NE8E65NE6NE10E8E9NE8NE6NE3CalmE3CalmCalmCalmCalmCalmCalmE4CalmNE3
2 days agoCalmNE5NE6W3CalmNE7E8NE8NE8NE8NE7NE4NE6NE6E4CalmCalmCalmCalmCalmCalmCalmCalmCalm

Tide / Current Tables for Poulsbo, Liberty Bay, Washington
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Poulsbo
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Tue -- 01:12 AM PDT     9.85 feet High Tide
Tue -- 01:44 AM PDT     Moonset
Tue -- 06:14 AM PDT     Sunrise
Tue -- 08:31 AM PDT     0.53 feet Low Tide
Tue -- 04:07 PM PDT     10.56 feet High Tide
Tue -- 05:31 PM PDT     Moonrise
Tue -- 08:11 PM PDT     Sunset
Tue -- 09:14 PM PDT     6.73 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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9.49.89.78.87.45.43.31.60.70.61.53.15.27.3910.110.610.29.38.17.26.76.97.5

Tide / Current Tables for West Point, Seattle, 0.3 miles W of, Washington Current
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West Point
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Tue -- 12:30 AM PDT     -0.00 knots Slack
Tue -- 01:44 AM PDT     Moonset
Tue -- 04:44 AM PDT     -0.84 knots Max Ebb
Tue -- 06:14 AM PDT     Sunrise
Tue -- 08:45 AM PDT     0.00 knots Slack
Tue -- 11:48 AM PDT     0.73 knots Max Flood
Tue -- 03:33 PM PDT     -0.00 knots Slack
Tue -- 05:31 PM PDT     Moonrise
Tue -- 06:06 PM PDT     -0.45 knots Max Ebb
Tue -- 08:11 PM PDT     Sunset
Tue -- 09:46 PM PDT     0.00 knots Slack
Tue -- 11:26 PM PDT     0.18 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.1-0.1-0.4-0.6-0.8-0.8-0.7-0.5-0.20.10.40.70.70.60.40.2-0.1-0.4-0.5-0.4-0.3-0.100.2

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 (11,2,3,4)
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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.