Friday, October19, 2018 L-36.com


Marine Weather and Tides
Redmond, 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 7:33AMSunset 6:13PM Friday October 19, 2018 4:33 PM PDT (23:33 UTC) Moonrise 3:34PMMoonset 12:56AM 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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PZZ135 Puget Sound And Hood Canal- 300 Pm Pdt Fri Oct 19 2018
Tonight..N wind to 10 kt. Wind waves 1 ft or less. Areas of fog after midnight.
Sat..N wind 5 to 15 kt. Wind waves 2 ft or less. Areas of fog in the morning.
Sat night..NE wind 5 to 15 kt. Wind waves 2 ft or less. Patchy fog after midnight.
Sun..N wind 5 to 15 kt. Wind waves 2 ft or less.
Sun night..N wind to 10 kt in the evening becoming light. Wind waves 1 ft or less.
Mon..Light wind. Wind waves less than 1 ft.
Mon night..Light wind becoming S 5 to 15 kt after midnight. Wind waves 2 ft or less.
Tue..S wind 10 to 20 kt easing to 10 kt. Wind waves 1 to 3 ft subsiding to 1 ft or less.
Wed..SW wind to 10 kt becoming s. Wind waves 1 ft or less.
PZZ100 300 Pm Pdt Fri Oct 19 2018
Synopsis for the northern and central washington coastal and inland waters..Onshore flow will continue through Saturday, with small craft advisory strength westerlies likely this evening in the strait. A cold front will approach the area Monday into Tuesday with increasing low level southeast flow. Advisory level southerly winds are possible on the coast Monday night through Wednesday.


7 Day Forecast for Marine Location Near Redmond, WA
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location: 47.68, -122.1     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 192145
afdsew
area forecast discussion
national weather service seattle wa
245 pm pdt Fri oct 19 2018

Synopsis High pressure aloft will remain over the region
through Monday but it will weaken with time. Thus, expect the dry
pattern to persist. Look for a change to unsettled conditions the
middle of next week. This will be because of a series of mostly
weak low pressure systems moving across the area.

Short term
Areas of low clouds and fog remained over parts of the lowlands this
afternoon. The result was that temperatures in the areas impacted
by the stratus fog were running about five to as much as fifteen
degrees cooler than yesterday. The fog will briefly lift this
afternoon before returning about sunset over parts of the coast
and southwest interior.

Meanwhile, high pressure aloft will continue over the region through
Monday but will weaken with time. Dry weather will persist. The
forecast challenge will be predicting the MAX temps for this
weekend and determining how much fog will be present across the
lowlands. The models still disagreed on the strength of the
inversion and the low level northerly flow; thus, there was a big
difference in the models temperature forecasts. The GFS was the
warmest while the NAM was the coolest. The forecast reflects a
compromise between the extremes. Meanwhile, the warmest places will
be in the mountains, where temperatures will be well above normal
for this time of the year.

The ridge axis will shift east of the area on Monday, and this
should allow somewhat more mixing. Thus, highs on Monday should be
warmer at most places. The exception will be in the mountains,
where temperatures will be a few degrees cooler.

Long term
It looks like Monday night will be the transition period from a
stable pattern to an unsettled one. The first weakening system
will bring a threat rain to the area on Tuesday. There is a chance
that the dissipating occluded front could fall apart before
reaching the coast. If that happens, much of the area will stay
dry through Tuesday.

A slightly stronger system may bring a threat of rain to the area
on Wednesday; however, the models did not agree on the timing of
this system. The GFS was faster than the ECMWF solution. The
forecast reflects a compromise between these two models.

Beyond Wednesday, it appeared that Thursday will probably be the
wettest day of the period. The medium range solutions indicated
that high pressure aloft may move over the region on Friday.

However, the high appeared "dirty." in other words, there will
probably be plenty of clouds around. Also, weak warm air advection
may result in a few light showers on Friday.

Temperatures during this period will be near or slightly above
normal.

Aviation An upper ridge over the pacific northwest will flatten
somewhat tonight and Saturday. Flow aloft will be moderate westerly.

At the surface moderately onshore flow tonight will ease Saturday.

Most of the fog from this morning has dissipated, though there are
still patches over the water. Otherwise the air mass is dry and
stable. Areas of fog will return after 06z tonight.

Ksea... Clear the rest of the afternoon and this evening. Lifr fog is
forecast to return tonight after 08z or so, and clear by 19z
Saturday. Light north winds. Chb

Marine Light to moderate onshore flow will continue through
Saturday. Westerly winds in the strait will probably reach small
craft advisory criteria for a time this evening, and an advisory is
in effect for the central and east strait. Winds will turn northerly
and offshore Sunday into Monday.

An approaching front on Monday will turn the low level flow
southeasterly. Advisory level winds are likely on the coast for a
time Tuesday, but the system is forecast to dissipate rapidly. A
stronger system will arrive around Wednesday, with advisory level
southerly wind on the coast. Chb

Sew watches warnings advisories
Wa... None.

Pz... Small craft advisory until 2 am pdt Saturday for central u.S.

Waters strait of juan de fuca-east entrance u.S. Waters
strait of juan de fuca.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
EBSW1 - 9447130 - Seattle, WA 14 mi34 min NW 1.9 G 4.1 52°F 55°F1024.2 hPa (-1.7)
WPOW1 - West Point, WA 18 mi34 min N 4.1 G 4.1 48°F 1024.5 hPa (-1.7)48°F
46125 32 mi26 min 7.8 48°F 1024 hPa47°F
TCNW1 - 9446484 - Tacoma, WA 33 mi34 min 55°F 55°F1024.5 hPa (-1.8)
TCMW1 - 9446482 - Tacoma Met, WA 33 mi34 min NW 7 G 8
PTWW1 - 9444900 - Port Townsend, WA 46 mi34 min W 2.9 G 6 56°F 52°F1025.3 hPa (-1.2)

Wind History for Seattle, Puget Sound, WA, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Renton Municipal Airport, WA14 mi41 minNNW 55.00 miFair62°F51°F67%1024.4 hPa
Boeing Field - King County International Airport, WA15 mi41 minVar 47.00 miFair with Haze59°F48°F69%1024.1 hPa
Everett Snohomish County, WA19 mi41 minWSW 310.00 miFair57°F48°F74%1024.6 hPa
Seattle, Seattle-Tacoma International Airport, WA20 mi41 minWNW 37.00 miA Few Clouds60°F48°F67%1025 hPa

Wind History from RNT (wind in knots)
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Last 24hr3CalmCalmCalmE3SE3CalmSE3CalmCalmCalmCalmE3SE3Calm--CalmCalmCalmCalmCalmNW3NW4NW5
1 day agoNW3CalmCalmCalmCalmSE4CalmCalmCalmCalmE4CalmCalmCalmCalmE3S6SE5SE3S54NW4CalmSE5
2 days agoNW3CalmCalmCalmCalm--CalmCalmCalmCalmCalmCalmCalmCalmCalmE3E3CalmCalmCalmN4N4N4N4

Tide / Current Tables for Seattle, Washington
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Seattle
Click for Map
Fri -- 01:20 AM PDT     7.83 feet High Tide
Fri -- 01:57 AM PDT     Moonset
Fri -- 07:34 AM PDT     Sunrise
Fri -- 07:47 AM PDT     2.29 feet Low Tide
Fri -- 03:01 PM PDT     10.84 feet High Tide
Fri -- 04:34 PM PDT     Moonrise
Fri -- 06:13 PM PDT     Sunset
Fri -- 09:16 PM PDT     4.77 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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7.47.87.77.26.24.83.52.52.32.84.15.87.79.410.510.810.59.47.96.45.34.84.95.6

Tide / Current Tables for Alki Point, 0.3 miles W of, Washington Current
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Alki Point
Click for Map
Fri -- 12:37 AM PDT     -0.00 knots Slack
Fri -- 01:57 AM PDT     Moonset
Fri -- 04:34 AM PDT     -0.39 knots Max Ebb
Fri -- 07:34 AM PDT     Sunrise
Fri -- 08:11 AM PDT     0.00 knots Slack
Fri -- 11:05 AM PDT     0.48 knots Max Flood
Fri -- 02:34 PM PDT     -0.00 knots Slack
Fri -- 04:34 PM PDT     Moonrise
Fri -- 05:47 PM PDT     -0.44 knots Max Ebb
Fri -- 06:13 PM PDT     Sunset
Fri -- 09:54 PM PDT     0.00 knots Slack
Fri -- 11:39 PM PDT     0.19 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0-0-0.2-0.3-0.4-0.4-0.3-0.2-00.20.40.50.40.30.1-0.1-0.3-0.4-0.4-0.4-0.3-0.100.2

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 (19,4,5,8)
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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.