Thursday, March30, 2017 L-36.com


Marine Weather and Tides
Ashford, 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 6:47AMSunset 7:38PM Thursday March 30, 2017 1:21 PM PDT (20:21 UTC) Moonrise 7:41AMMoonset 10:02PM Illumination 12% Phase: Waxing Crescent; Moon at 3 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- 820 Am Pdt Thu Mar 30 2017
Today..SW wind 5 to 15 kt in the south part. NW wind 5 to 15 kt in the north part. Wind waves 1 or 2 ft. Chance of showers.
Tonight..N wind 5 to 15 kt becoming S wind to 10 kt late. Wind waves 1 or 2 ft.
Fri..S wind to 10 kt rising to 5 to 15 kt in the afternoon. Wind waves 1 or 2 ft. Patchy fog in the morning.
Fri 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 after midnight.
Sat..S wind 5 to 15 kt. Wind waves 1 or 2 ft.
Sat night..NW wind to 10 kt becoming N after midnight. Wind waves 1 ft or less.
Sun..NE wind to 10 kt becoming nw. Wind waves 1 ft or less.
Mon..Light wind becoming sw to 10 kt. Wind waves less than 1 ft becoming 1 ft or less.
PZZ100 820 Am Pdt Thu Mar 30 2017
Synopsis for the northern and central washington coastal and inland waters..Onshore flow will become light on Friday as high pressure builds over the region. A weakening front will reach the coast around daybreak Saturday.

7 Day Forecast for Marine Location Near Ashford, WA
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location: 46.81, -122.06     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 301652
afdsew
area forecast discussion
national weather service seattle wa
900 am pdt Thu mar 30 2017

Synopsis An upper level trough over the region will shift
eastward today. High pressures building over the region tonight and
Friday will provide dry and slightly warmer weather. A weak front
will bring some light rain on Saturday with a lingering trough
providing a chance of showers on Sunday. Somewhat drier conditions
Monday could be followed by more rain with another front by the
middle of next week.

Short term Radar indicates showers continue streaming into WRN wa
this morning under moist northwest flow. A residual convergence band
of showers is also evident over snohomish and parts of king county,
although this appears to be less organized and should dissipate over
the next few hours. The overall trend today is for decreasing
showers as the 500 mb trough axis moves east of the region. Visible
imagery shows some breaks in the clouds offshore and as moisture
decreases this afternoon, some sunbreaks should also develop over
parts of interior WRN wa. It will remain cool today with highs only
in the low 50s.

High pressure aloft build over the pacific northwest tonight and
Friday. Models shows some high level clouds breaking over the ridge
some there may be filtered sunshine with mostly sunny in the
forecast maybe a little optimistic. But it should be dry with high
temperatures about +5 degrees from today, possibly reaching near 60
around the southwest interior and parts of greater puget sound
inland from the water.

The next system will approach Friday evening with thicker mid and
high clouds developing over the area. A weak front will cross WRN wa
on Saturday with some spotty light rain across most the area.

Nothing heavy but enough to measure across much the area. The
onshore flow will also hold back high temperatures, with mostly
upper 50s but possibly a couple 60s in the south interior. Mercer

Long term Previous discussion... Much of western washington could
get away with a dry day on Sunday, but the presence of a trough
overhead is enough to keep a chance of showers in the forecast. Both
the GFS and euro bring more ridging to the area Monday into Tuesday.

Current forecasts have chance pops for that period, but those could
be trimmed back or eliminated if the models continue with that trend.

A return of more wet and unsettled conditions is possible by the
middle of next week as the models show a broad upper level trough
digging into our offshore waters with a series of systems moving
through. 27

Aviation Northwesterly flow aloft, low level westerly flow
with high pressure to the west and low pressure inland. The air is
moist and somewhat unstable with scattered showers. Morning low
clouds and widespread bkn-ovc CIGS will lift and break up into sct-
bkn cumulus in the afternoon. The mountains will likely remain
mostly obscured through the day.

Ksea... Conditions will improve through the day as the clouds lift in
standard springtime fashion. The wind should be light and variable
with the metro area in an area of converging winds.

Marine Westerly flow coastal waters and strait of juan de fuca
today. The winds will be convergence zone winds for puget sound, and
there will also be convergence up through the san juans. As the high
pressure builds in tonight winds will become fairly light through
Friday. A weakening front will reach the coast around daybreak
Saturday--it looks pretty weak in the 12z NAM fcst.

Hydrology The skokomish river in mason county fell below flood
stage around 6 am pdt this morning. This trend will continue and the
flood warning will likely be dropped with the next update prior to
noon today, assuming the rapid fall continues.

No other really strong and wet systems are expected for the next
week so flooding is not expected on area rivers during the next 7
days.

The heavy rain did increase the threat of landslides across W wa
again. Any additional light showers today will have little or no
impact on the risk of landslides. While the immediate high risk of
landslides is decreasing, soils are generally still saturated from
wet weather this past month. The risk of landslides will remain
somewhat elevated.

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

Pz... Small craft advisory until 5 pm pdt this afternoon 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 for rough bar until 11 pm pdt this evening
for grays harbor bar.

Small craft advisory until 5 am pdt Friday for admiralty inlet-
central u.S. Waters strait of juan de fuca-east entrance
u.S. Waters strait of juan de fuca.

Small craft advisory until 11 pm pdt this evening 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
TCNW1 - 9446484 - Tacoma, WA 37 mi51 min 53°F 45°F1023.6 hPa
TCMW1 - 9446482 - Tacoma Met, WA 37 mi51 min E 2.9 G 5.1
46121 48 mi43 min 47°F 1023.2 hPa42°F
EBSW1 - 9447130 - Seattle, WA 57 mi51 min W 4.1 G 5.1 50°F 47°F1023.4 hPa

Wind History for Tacoma MET, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Pierce County-Thun Field, WA24 mi26 minSSE 610.00 mi54°F41°F63%1023.4 hPa

Wind History from PLU (wind in knots)
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SE5S4S5S5S4Calm3SE4S44S33
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SE7S7S5S5S54S5CalmCalmCalmCalmCalmSE4Calm5SW9
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Tide / Current Tables for Tacoma, Commencement Bay, Washington
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Tacoma
Click for Map
Thu -- 01:07 AM PDT     2.86 feet Low Tide
Thu -- 06:51 AM PDT     Sunrise
Thu -- 07:00 AM PDT     12.34 feet High Tide
Thu -- 08:41 AM PDT     Moonrise
Thu -- 01:38 PM PDT     -0.26 feet Low Tide
Thu -- 07:37 PM PDT     Sunset
Thu -- 08:07 PM PDT     11.73 feet High Tide
Thu -- 11:04 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.72.93.45.17.59.911.712.311.79.97.34.41.70.1-0.21.13.56.3910.911.711.39.98

Tide / Current Tables for Tacoma, Commencement Bay, Sitcum Waterway, Puget Sound, Washington (sub)
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Tacoma
Click for Map
Thu -- 01:05 AM PDT     2.74 feet Low Tide
Thu -- 06:51 AM PDT     Sunrise
Thu -- 07:02 AM PDT     12.40 feet High Tide
Thu -- 08:41 AM PDT     Moonrise
Thu -- 01:32 PM PDT     -0.30 feet Low Tide
Thu -- 07:37 PM PDT     Sunset
Thu -- 08:00 PM PDT     11.74 feet High Tide
Thu -- 11:04 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.62.73.35.17.59.911.712.411.8107.34.31.6-0-0.11.43.96.89.411.111.711.29.87.8

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 (16,3,4,5)
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Ground Weather Radar Station Portland, OR
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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.