Thursday, April27, 2017 L-36.com


Marine Weather and Tides
Carbonado, WA

Version 3.4
What's New / NOTES
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 5:55AMSunset 8:17PM Thursday April 27, 2017 11:45 AM PDT (18:45 UTC) Moonrise 6:12AMMoonset 8:56PM Illumination 3% Phase: Waxing Crescent; Moon at 2 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- 900 Am Pdt Thu Apr 27 2017
Today..SW wind 10 to 20 kt becoming nw in the afternoon. Wind waves 1 to 3 ft. Scattered showers.
Tonight..NW wind 10 to 20 kt becoming sw to 10 kt after midnight. Wind waves 1 to 3 ft subsiding to 1 ft or less. Scattered showers in the evening.
Fri..SE wind to 10 kt. Wind waves 1 ft or less.
Fri night..NW wind to 10 kt becoming se after midnight. Wind waves 1 ft or less.
Sat..S wind to 10 kt becoming sw in the afternoon. Wind waves 1 ft or less.
Sat night..SW wind to 10 kt becoming S 10 to 20 kt after midnight. Wind waves 1 ft or less building to 1 to 3 ft.
Sun..SW wind 5 to 15 kt becoming n. Wind waves 2 ft or less.
Mon..S wind to 10 kt becoming variable. Wind waves 1 ft or less.
PZZ100 900 Am Pdt Thu Apr 27 2017
Synopsis for the northern and central washington coastal and inland waters..Onshore flow will strengthen this afternoon and evening... Then weaken late tonight and Friday. High pressure over the area will give light winds Friday and Friday night. A front will bring increasing winds Saturday afternoon and night. Strong onshore flow Sunday will ease Monday.

7 Day Forecast for Marine Location Near Carbonado, WA
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location: 47.04, -122.07     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 271629
afdsew
area forecast discussion
national weather service seattle wa
929 am pdt Thu apr 27 2017

Synopsis A weak disturbance will move across the area this
afternoon for an increase in shower activity. The disturbance will
move east this evening, with high pressure following in its wake.

High pressure will prevail Friday into early Saturday. Another low
pressure system will bring a threat of precipitation to the region
this weekend.

Short term
There were a few showers over the CWA at this time. Also, some areas
were enjoying sunny skies at this time. Expect the sunny areas to
fill in some with clouds this morning in response to surface
heating.

Progs concur on one more embedded shortwave in the flow to swing
onshore today to enhance showers, particularly as daytime heating
kicks in this afternoon. Yet, not as many showers as on Wednesday
with Sun breaks mixed in. Low level flow favors another puget sound
convergence zone to develop that should enhance the showers in the
central sound into the cascades as well.

The broad upper ridge should continue to build and provide a drying
trend tonight into Friday with more sunshine developing. High
temperatures should approach late april averages.

The next question is will the drier weather hang on into Saturday.

Again, guidance offers differing solutions in timing of the next
system. The canadian and GFS bring some light rain to the nw
quadrant of western washington Saturday afternoon while the ecmwf
rushes the rain further inland. Will stick with the slower solution
given the higher amplitude upper ridge that develops Friday.

Buehner/05

Long term The next system swings onshore Saturday night with some
light rain turning to scattered showers for Sunday with most showers
in the mountains thanks to orographic flow. The showers should taper
off Sunday night as an upper ridge builds offshore.

Again, guidance is not consistent heading into early may. Ridging
aloft is anticipated. Yet with the warm advection, will there be any
accompanying light rain Monday into Tuesday despite the building
heights. In collaboration with NWS portland and ec vancouver, will
adjust the forecast to offer higher level clouds, a small threat of
light rain, and warming temperatures. By midweek, the upper ridge
should be more firmly in place for sunshine and perhaps the warmest
temperatures of the year thus far. Have those sunglasses handy.

Buehner

Aviation Moderate northwest flow aloft will weaken tonight and
become more northerly. Low level onshore flow will increase this
afternoon and evening. The air mass is moist and weakly unstable
with scattered showers. Most terminals haveVFR ceilings but they
are MVFR around central puget sound. Some clear areas are apparent
on satellite imagery; these will likely fill in with aVFR cumulus
field by afternoon.VFR all areas this evening, then local MVFR
ceilings will develop overnight.

Ksea... Discussion above applies. Southwesterly wind 10-14 kt
switching to northerly around 22-24z. Winds should switch back to
southwesterly by late evening. Puget sound convergence zone may
produce showers at the terminal later today and this evening. Chb

Marine Onshore flow will increase this afternoon and evening.

Gale force winds are forecast in the strait and the warning is
already in effect. There is a small craft advisory in effect
everywhere else except puget sound. A pscz will probably switch
the winds in puget sound from southerly to northerly this
afternoon, at least over the northern part.

High pressure over the area will give light winds Friday into
Saturday morning. A front will bring increasing winds to the coastal
waters Saturday afternoon and to to the inland waters Saturday
night. Strong onshore flow Sunday will ease Monday. Chb

Sew watches/warnings/advisories
Wa... None.

Pz... Gale warning until midnight pdt tonight for central u.S. Waters
strait of juan de fuca-east entrance u.S. Waters strait of
juan de fuca.

Small craft advisories are in effect for the remaining waters
except the puget sound/hood canal.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TCNW1 - 9446484 - Tacoma, WA 24 mi45 min 52°F 47°F1018.9 hPa (+0.0)
TCMW1 - 9446482 - Tacoma Met, WA 25 mi45 min WSW 11 G 14
46121 39 mi1408 min 12 51°F 1018.4 hPa37°F
EBSW1 - 9447130 - Seattle, WA 41 mi45 min NW 1.9 G 4.1 49°F 48°F1018.9 hPa (+0.0)
WPOW1 - West Point, WA 47 mi45 min S 2.9 G 4.1 48°F 1018.8 hPa (+0.5)39°F

Wind History for Tacoma MET, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Pierce County-Thun Field, WA12 mi50 minSW 6 G 1210.00 mi52°F39°F62%1019 hPa
Tacoma / McChord Air Force Base, WA23 mi47 minWSW 9 G 1410.00 miOvercast53°F41°F65%1019.1 hPa

Wind History from PLU (wind in knots)
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1 day agoCalmSW5SW5
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SW7SW4SW4S5S4CalmCalmCalmCalmSW5SW4SW4CalmCalmS5CalmSW5CalmSW5SW5
G11
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2 days ago36CalmCalmCalmCalmSW3SW6SW3CalmCalmS3CalmCalmSW3CalmSW3CalmCalmCalmCalmS4CalmSW3

Tide / Current Tables for Tacoma, Commencement Bay, Sitcum Waterway, Puget Sound, Washington (sub)
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Tacoma
Click for Map
Thu -- 12:00 AM PDT     3.83 feet Low Tide
Thu -- 05:41 AM PDT     12.28 feet High Tide
Thu -- 05:59 AM PDT     Sunrise
Thu -- 07:13 AM PDT     Moonrise
Thu -- 12:22 PM PDT     -1.78 feet Low Tide
Thu -- 07:08 PM PDT     12.20 feet High Tide
Thu -- 08:15 PM PDT     Sunset
Thu -- 09:57 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.84.56.28.410.51212.211.18.95.92.7-0.1-1.6-1.40.43.36.69.411.412.211.810.58.66.5

Tide / Current Tables for Tacoma, Commencement Bay, Washington
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Tacoma
Click for Map
Thu -- 12:04 AM PDT     3.96 feet Low Tide
Thu -- 05:40 AM PDT     12.18 feet High Tide
Thu -- 05:59 AM PDT     Sunrise
Thu -- 07:13 AM PDT     Moonrise
Thu -- 12:29 PM PDT     -1.67 feet Low Tide
Thu -- 07:15 PM PDT     12.28 feet High Tide
Thu -- 08:15 PM PDT     Sunset
Thu -- 09:57 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
44.56.28.310.511.912.1118.962.90.1-1.5-1.40.22.96.19.111.312.21210.78.86.7

Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of PacificNorthwest    EDIT
Geos

Wind Forecast for Seattle, WA (14,3,4,5)
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Ground Weather Radar Station Seattle/Tacoma, WA
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weather_mapweather_map weather_map

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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.