Friday, April26, 2019 L-36.com


Marine Weather and Tides
Portsend, WA

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 5:59AMSunset 8:17PM Thursday April 25, 2019 10:44 PM PDT (05:44 UTC) Moonrise 1:03AMMoonset 9:46AM Illumination 58% Phase: Waning Gibbous; Moon at 21 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- 838 Pm Pdt Thu Apr 25 2019
.small craft advisory in effect from Friday afternoon through late Friday night...
Tonight..NW wind 5 to 15 kt becoming 10 to 20 kt after midnight. Wind waves 1 to 3 ft.
Fri..Light wind becoming nw 15 to 25 kt in the afternoon. Wind waves less than 1 ft becoming 2 to 4 ft in the afternoon.
Fri night..NW wind 20 to 30 kt. Wind waves 3 to 5 ft. A slight chance of showers after midnight.
Sat..NW wind 15 to 25 kt. Wind waves 2 to 4 ft.
Sat night..NW wind 15 to 25 kt becoming S 10 to 20 kt after midnight. Wind waves 2 to 4 ft.
Sun..Variable wind to 10 kt becoming nw 5 to 15 kt in the afternoon. Wind waves 2 ft or less.
Sun night..NW wind to 10 kt in the evening becoming light. Wind waves 1 ft or less.
Mon..NW wind to 10 kt. Wind waves 1 ft or less.
Tue..Variable wind to 10 kt. Wind waves 1 ft or less.
PZZ100 838 Pm Pdt Thu Apr 25 2019
Synopsis for the northern and central washington coastal and inland waters..High pressure will give moderate northerly flow to the area tonight. Onshore flow will become strong on Friday as pressures fall east of the cascades. Onshore flow will diminish on Saturday. Moderate northerly flow is expected behind a front on Sunday.


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 260406
afdsew
area forecast discussion
national weather service seattle wa
906 pm pdt Thu apr 25 2019

Synopsis After one more dry day Friday, an upper trough will
bring a chance of showers and cooler weather to the region Friday
night and Saturday. Sunday looks dry, but another upper trough will
remain near the region and could bring scattered showers each day
next week.

Short term tonight through Sunday A weak upper level trough
will cross the area tonight but the forecast is mostly dry. No
changes from the previous forecast. 33
previous discussion... Increasing low level onshore flow Friday
will cool temperatures a few degrees, with highs in the mid 50s to
low 60s.

Strong onshore flow will bring westerly gales to the strait Friday
night and will also bring considerable cloudiness. A second upper
trough will cross the area on Saturday. This should bring a more
widespread chance of showers to the area. The cascades will have the
best chance for showers. The snow level will fall to 3000 feet or
lower, and a few inches of snow will probably fall in stevens and
snoqualmie passes. A convergence zone pattern is evident in some
models, so seattle could remain cloudy and showery most of the
day. Highs Saturday will be in the 50s.

Dry northerly flow on Sunday will clear the clouds and allow
temperatures to rebound into the low to mid 60s. Some residual
showers will still be possible in the mountains. Burke

Long term Monday through Thursday Previous discussion... A
longwave upper trough will remain around the region all through
next week. Each day will have a chance of showers, sometimes in
the mountains only, sometimes over the lowlands as well. Tuesday
and Wednesday look like the drier days. High temperatures will be
in the low to mid 60s each day. Burke

Aviation An weak upper level trough will cross the region
tonight although mainly dry weather is expected. Onshore flow will
increase Friday afternoon for gusty westerly winds. May see patchy
low clouds Friday morning (coast and SW interior), otherwiseVFR
conditions expected. 33
ksea...VFR conditions tonight. Winds becoming S SW 12-15z and
increasing to 10-15 kt by 18z. 33

Marine High pressure over the NE pacific will give N NW flow
over western wa tonight. Strong onshore flow will develop on
Friday with gales possible through the strait of juan de fuca and
small craft advisory winds elsewhere. Onshore flow will ease on
Saturday. Northerly flow will develop on Sunday. 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 pm pdt Saturday 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.

Gale warning from noon Friday to 3 am pdt Saturday for central
u.S. Waters strait of juan de fuca-east entrance u.S.

Waters strait of juan de fuca.

Small craft advisory from 2 pm Friday to 3 am pdt Saturday for
admiralty inlet-northern inland waters including the san
juan islands-puget sound and hood canal.

Small craft advisory from 5 am Friday to 11 pm pdt Saturday for
west entrance u.S. Waters strait of juan de fuca.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PTWW1 - 9444900 - Port Townsend, WA 1 mi50 min WSW 4.1 G 8 52°F 49°F1019.2 hPa
46125 15 mi50 min 9.7 52°F 1017.8 hPa42°F
SISW1 - Smith Island, WA 16 mi54 min W 11 G 13 50°F 1018.5 hPa (-0.0)44°F
46088 - New Dungeness, WA (Hein Bank) 27 mi54 min WSW 16 G 18 49°F 49°F1 ft1017.9 hPa (-0.8)46°F
46120 30 mi51 min NE 1.9 53°F 1017.4 hPa42°F
FRDW1 - 9449880 - Friday Harbor, WA 34 mi68 min Calm G 1.9 50°F 49°F1018.3 hPa
WPOW1 - West Point, WA 35 mi44 min NE 5.1 G 7 52°F 1018.7 hPa (+0.5)41°F
PTAW1 - 9444090 - Port Angeles, WA 36 mi68 min WSW 4.1 G 7 54°F 49°F1018.8 hPa
46118 44 mi49 min SE 1.9 51°F 1017.5 hPa44°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 mi48 minN 010.00 miOvercast52°F44°F75%1019.8 hPa

Wind History from NUW (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmE3SE4CalmCalmNW5NW6NW8NW9NW7W7W7W6NW8NW5W7NW8N3Calm
1 day agoW19
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W14W12W11W9W10W7CalmCalmNW4NE5NW6NW8N9NW8NW7NW8NW5W5W6CalmSE3Calm
2 days agoSE8SE4W5CalmCalmSE3CalmCalmCalmCalmSW3SW8SW14W10SW10W12SW13SW13W11SW11W14W14W17
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Tide / Current Tables for Point Hudson, Washington
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Point Hudson
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Fri -- 02:46 AM PDT     Moonrise
Fri -- 06:01 AM PDT     Sunrise
Fri -- 06:07 AM PDT     5.76 feet Low Tide
Fri -- 08:32 AM PDT     6.16 feet High Tide
Fri -- 11:44 AM PDT     Moonset
Fri -- 03:19 PM PDT     Last Quarter
Fri -- 04:08 PM PDT     0.67 feet Low Tide
Fri -- 08:17 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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8.48.17.56.86.35.95.85.96.16.15.95.24.231.910.70.91.62.745.46.67.6

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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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Seattle, WA (1,6,7,8)
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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.