Tuesday, August21, 2018 L-36.com


Marine Weather and Tides
Portsend, WA

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Sunrise 6:12AMSunset 8:13PM Tuesday August 21, 2018 3:00 PM PDT (22:00 UTC) Moonrise 4:34PMMoonset 12:43AM Illumination 79% 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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PZZ134 Admiralty Inlet- 243 Pm Pdt Tue Aug 21 2018
Tonight..NW wind to 10 kt. Wind waves 1 ft or less. Smoke.
Wed..NW wind to 10 kt. Wind waves 1 ft or less. Smoke.
Wed night..NW wind 15 to 25 kt. Wind waves 2 to 4 ft. Areas of smoke.
Thu..Light wind. Wind waves less than 1 ft.
Thu night..NW wind 5 to 15 kt becoming variable after midnight. Wind waves 2 ft or less.
Fri..Light wind. Wind waves less than 1 ft.
Fri night..Light wind becoming nw to 10 kt after midnight. Wind waves 1 ft or less.
Sat..Light wind becoming variable to 10 kt. Wind waves 1 ft or less.
Sun..Variable wind to 10 kt becoming light. Wind waves 1 ft or less.
PZZ100 243 Pm 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 will weaken this evening and 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 Portsend, WA
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location: 48.1, -122.76     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 211636
afdsew
area forecast discussion
national weather service seattle wa
936 am pdt Tue aug 21 2018

Update
The current forecast is overall in good shape this
morning. As offshore flow continues... Thick wildfire smoke will
linger across western washington for the remainder of today.

Current air quality ALERT continues to cover the unhealthy
conditions expected across the local area. The overall synoptic
pattern is not expected to change much over the next 24 hours as
ridging aloft continues to build along the pacnw and bc coasts and
allow for the primary airmass source region to be from bc. Main
forecast concern as a result of the smoke today will be the
temperatures... Which may end up a few degrees shy of current
forecast values. The ridge should begin to dampen late Wednesday
as the flow becomes more cyclonic in association with next
approaching shortwave trough.

Kovacik

Prev discussion issued 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 Skies will remain smoky today with N NE flow over the
region. Visibility is generally 1-4sm in fu with a smoke layer
2000-5000 feet. The air mass is dry and stable with an upper
level ridge over the region. Smoky conditions will continue
through tonight. 33
ksea... Vis generally 1-4 miles in fu with a smoke layer around
4000-5000 feet. N wind to 10 kt. 33

Marine Offshore flow will prevail today due to a thermal trough
along the coast. This flow pattern will continue to bring
wildfire smoke into western washington. The flow will be nearly
flat tonight as the thermal trough shifts inland. Strong onshore
flow will develop on Wednesday with gales possible through the
strait of juan de fuca. Onshore flow will continue through the end
of the week. 33

Sew watches warnings advisories
Wa... None.

Pz... None.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PTWW1 - 9444900 - Port Townsend, WA 1 mi31 min Calm G 1 68°F 54°F1017.7 hPa
46125 15 mi25 min 7.8 60°F 1016 hPa56°F
SISW1 - Smith Island, WA 16 mi71 min WNW 8 G 8 65°F 1017.6 hPa (-1.1)50°F
46088 - New Dungeness, WA (Hein Bank) 27 mi41 min Calm G 1.9 64°F 59°F1 ft1017.1 hPa57°F
PBFW1 - Padilla Bay Reserve, WA 30 mi31 min N 7 73°F 1017 hPa60°F
FRDW1 - 9449880 - Friday Harbor, WA 34 mi85 min NNE 1.9 G 2.9 74°F 57°F1017.4 hPa
WPOW1 - West Point, WA 35 mi121 min NE 8.9 G 9.9 66°F 1017.6 hPa (-0.9)57°F
PTAW1 - 9444090 - Port Angeles, WA 36 mi85 min ESE 2.9 G 2.9 68°F 53°F1017.8 hPa
EBSW1 - 9447130 - Seattle, WA 41 mi31 min NW 1.9 G 4.1 72°F 55°F1016.5 hPa
46118 44 mi66 min 66°F 1016.7 hPa62°F

Wind History for Port Townsend, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Whidbey Island Naval Air Station - Ault Field, WA19 mi65 minW 61.50 miHaze Smoke69°F53°F57%1018.7 hPa

Wind History from NUW (wind in knots)
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Last 24hrW9W9W4W3CalmCalmSE4SE6S4CalmN3CalmSE3E7SE7E4SE3CalmCalmSE3W4NW5W5W6
1 day agoW6W5W4CalmW3W3CalmCalmCalmCalmS3CalmW3CalmCalmCalmCalmCalmSW5CalmW4NW5W6W9
2 days agoNW3W7W6CalmCalmW3W3SW4CalmCalmSW4CalmCalmCalmCalmCalmCalmCalmW43W5W5W4W4

Tide / Current Tables for Point Hudson, Washington
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Point Hudson
Click for Map
Tue -- 01:43 AM PDT     Moonset
Tue -- 06:13 AM PDT     Sunrise
Tue -- 07:23 AM PDT     0.36 feet Low Tide
Tue -- 03:39 PM PDT     7.88 feet High Tide
Tue -- 05:33 PM PDT     Moonrise
Tue -- 08:13 PM PDT     Sunset
Tue -- 08:20 PM PDT     5.91 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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7.47.16.45.13.62.110.40.51.123.24.65.97.17.77.87.46.86.25.966.36.7

Tide / Current Tables for Portsend, 0.5 miles S of Point Hudson, 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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Wind Forecast for Seattle, WA (18,4,5,8)
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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.