Wednesday, August21, 2019 L-36.com


Marine Weather and Tides
Westport, WA

Version 3.4
NOTICE
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:17AMSunset 8:19PM Tuesday August 20, 2019 11:56 PM PDT (06:56 UTC) Moonrise 9:51PMMoonset 10:21AM Illumination 69% Phase: Waning Gibbous; Moon at 20 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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PZZ110 Grays harbor bar- 832 pm pdt Tue aug 20 2019 combined seas 3 to 5 ft. Bar conditions light. Maximum ebb currents will occur around 830 am and 9 pm Wednesday.
PZZ100 832 Pm Pdt Tue Aug 20 2019
Synopsis for the northern and central washington coastal and inland waters..Winds will increase tonight as a cold front approaches western wa. The front will cross the area on Wednesday. Onshore flow will persist through the rest of the week. A much weaker front will pass to the north later Friday and Saturday.


7 Day Forecast for Marine Location Near Westport, WA
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location: 46.91, -124.11     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 210358
afdsew
area forecast discussion
national weather service seattle wa
858 pm pdt Tue aug 20 2019

Synopsis A cold front will bring rain to the region tonight and
Wednesday. Expect dry weather by Thursday afternoon with a weak
high pressure over the area. A series of systems will pass
generally to our north Friday into the weekend keeping
temperatures near normal and bringing a chance of showers mainly
to the coast and northern areas.

Short term tonight through Friday Dry weather tonight for the
interior but klgx shows showers over the coastal waters
approaching. This is due to a cold front that will move inland on
Wednesday. The current forecast is on track. 33
previous discussion... A fairly potent weather system near
45n 132w will move northeast and track into the central b.C. Coast
tonight. The front will slide onshore a bit quicker than expected
with showers chances along the coast tonight pushing eastward
into the puget sound area by daybreak. Models still fluctuate on
qpf amounts, but most generally in the range of a quarter of an
inch to possibly a half inch in spots around the sound with around
an inch along the coast. The front will move quickly through
western washington and weaken over the cascades by evening.

Mesoscale models highlight the possibility for the development of
a convergence zone over snohomish king counties Wednesday night
into early Thursday morning. Drier weather expected with some
sunshine by Thursday afternoon as a weak area of high pressure
builds over the area. Temperatures will be cooler on Wednesday
with highs in the 60s with temperatures into the mid 70s on
Thursday.

The upper level ridge over the area Thursday will become flattened
by Friday with the approach of another upper level trough.

Although the bulk of the energy with this system will generally be
north of the area, there will be a few showers possible across the
northern tier on Friday. Temperatures on Friday will be in the mid
60s to mid 70s across the area. Jd

Long term Saturday through Tuesday Previous discussion... Another
weather system north of the area looks to bring a chance for pops
on Saturday with the GFS being a bit drier than the ecmwf.

Onshore flow expected through the weekend with temperatures near
normal. Guidance does suggest high pressure aloft building into
the area on Monday. Pattern change is possible heading into the
middle of next week if the current trends are maintained with
higher amplitude ridging over the pacific northeast and warmer
temperatures. Jd

Aviation A cold front will approach western wa tonight,
spreading rain to the coast. Rain will spread to the interior
Wednesday morning with possible MVFR conditions. Expect post-
frontal onshore flow and showers in the interior and cascades
Wednesday afternoon and evening. The flow aloft is southwesterly.

33
ksea... Mid and high level clouds withVFR conditions through
tonight. Ceilings will to MVFR levels after daybreak with rain as a
cold front moves into the central puget sound. Southwesterly winds
to 12 kt. 33

Marine Winds will increase tonight as a cold front approaches
western wa - small craft advisories are in effect for all waters.

Expect post-frontal onshore flow Wednesday afternoon and evening
with small craft advisory winds continuing through the strait. A
weak front will brush the area later Friday and Saturday with
minimal affect on the winds. 33

Hydrology The daily hydrology discussion has ended until the
start of the next rainy season; it will only be updated as needed
until then.

Sew watches warnings advisories
Wa... None.

Pz... Small craft advisory until 11 am pdt Wednesday for coastal
waters from CAPE flattery to james island 10 to 60 nm-
coastal waters from CAPE flattery to james island out 10 nm-
coastal waters from james island to point grenville 10 to
60 nm-coastal waters from james island to point grenville
out 10 nm-coastal waters from point grenville to cape
shoalwater 10 to 60 nm-coastal waters from point grenville
to CAPE shoalwater out 10 nm.

Small craft advisory until 5 pm pdt Wednesday for admiralty
inlet-east entrance u.S. Waters strait of juan de fuca-
northern inland waters including the san juan islands.

Small craft advisory until 4 am pdt Wednesday for central u.S.

Waters strait of juan de fuca.

Small craft advisory until 10 am pdt Wednesday for puget sound
and hood canal.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WPTW1 - 9441102 - Westport, WA 0 mi81 min S 9.9 G 15 62°F 62°F1015 hPa
46211 - Grays Harbor, WA (036) 8 mi57 min 64°F5 ft
TOKW1 - 9440910 - Toke Point, WA 16 mi63 min S 13 G 18 64°F 65°F1015.7 hPa
46099 25 mi187 min S 16 64°F 1013.3 hPa
46041 - CAPE ELIZABETH- 45NM Northwest of Aberdeen, WA 45 mi67 min SE 18 G 19 62°F 60°F5 ft1013.8 hPa (+0.0)
46100 46 mi187 min SSE 14 63°F 61°F1013 hPa
46243 - Clatsop Spit, OR - 162 48 mi57 min 62°F5 ft

Wind History for Westport, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hoquiam, Bowerman Airport, WA9 mi64 minSE 69.00 miFair63°F57°F84%1016 hPa

Link to 5 minute data for KHQM

Wind History from HQM (wind in knots)
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Last 24hrW8----------E4E4E3E5E5E7E6E7E7E6SW5W14W14----W11SW11SW11
1 day agoW11W9W9W7--NW3----NW6CalmW4NW3Calm--3SW5SW7SW8--W11SW11W10W11W11
2 days agoW8W8NW4NW5NW4NW5--N4NW4NW5NW4----CalmN3CalmW5CalmW3W11W14W13W13W10

Tide / Current Tables for Westport, Point Chehalis, Grays Harbor, Washington
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Westport
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Wed -- 05:02 AM PDT     6.87 feet High Tide
Wed -- 06:21 AM PDT     Sunrise
Wed -- 10:41 AM PDT     1.38 feet Low Tide
Wed -- 12:24 PM PDT     Moonset
Wed -- 05:20 PM PDT     7.90 feet High Tide
Wed -- 08:16 PM PDT     Sunset
Wed -- 11:14 PM PDT     Moonrise
Wed -- 11:39 PM PDT     1.33 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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23.44.85.96.66.96.55.33.72.31.61.42.13.65.36.67.47.97.76.85.33.62.31.5

Tide / Current Tables for Grays Harbor Entrance, Washington Current
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Grays Harbor Entrance
Click for Map
Wed -- 02:08 AM PDT     1.50 knots Max Flood
Wed -- 05:22 AM PDT     -0.00 knots Slack
Wed -- 06:21 AM PDT     Sunrise
Wed -- 08:29 AM PDT     -2.31 knots Max Ebb
Wed -- 11:46 AM PDT     0.01 knots Slack
Wed -- 12:24 PM PDT     Moonset
Wed -- 02:23 PM PDT     1.92 knots Max Flood
Wed -- 05:53 PM PDT     -0.00 knots Slack
Wed -- 08:16 PM PDT     Sunset
Wed -- 09:06 PM PDT     -2.53 knots Max Ebb
Wed -- 11:14 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.21.11.51.30.90.3-0.6-1.6-2.2-2.2-1.8-10.31.41.91.81.30.7-0.1-1.2-2.2-2.5-2.4-1.8

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 (2,6,7,8)
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Ground Weather Radar Station Portland, OR
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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.