Tuesday, January22, 2019 L-36.com


Marine Weather and Tides
Skykomish, 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 7:37AMSunset 4:47PM Monday January 21, 2019 10:34 PM PST (06:34 UTC) Moonrise 5:43PMMoonset 8:13AM Illumination 98% Phase: Waning Gibbous; Moon at 16 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- 823 Pm Pst Mon Jan 21 2019
.small craft advisory in effect from midnight pst tonight through Tuesday evening...
.gale watch in effect from Tuesday evening through late Tuesday night...
Tonight..S wind 5 to 15 kt rising to 15 to 25 kt after midnight. Wind waves 2 ft or less building to 2 to 4 ft after midnight. A slight chance of rain after midnight.
Tue..S wind 15 to 25 kt rising to 20 to 30 kt in the afternoon. Wind waves 3 to 5 ft. Rain likely in the morning then rain in the afternoon.
Tue night..S wind 25 to 35 kt easing to 20 to 30 kt after midnight. Wind waves 4 to 6 ft. Rain likely.
Wed..S wind 15 to 25 kt easing to 10 to 20 kt in the afternoon. Wind waves 2 to 4 ft.
Wed night..Light wind. Wind waves less than 1 ft.
Thu..Light wind. Wind waves less than 1 ft.
Thu night..Light wind. Wind waves less than 1 ft.
Fri..Light wind becoming N to 10 kt. Wind waves 1 ft or less.
Sat..N wind 5 to 15 kt. Wind waves 2 ft or less.
PZZ100 823 Pm Pst Mon Jan 21 2019
Synopsis for the northern and central washington coastal and inland waters..A frontal system will move into the waters late tonight into Tuesday then move inland Tuesday night and Wednesday. Weak high pressure will move over the area on Thursday and remain over the area through Saturday.


7 Day Forecast for Marine Location Near Skykomish, WA
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location: 47.78, -121.05     debug


Area Discussion for - Spokane, WA
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Fxus66 kotx 220615
afdotx
area forecast discussion
national weather service spokane wa
1015 pm pst Mon jan 21 2019

Synopsis
A strong weather system will bring moderate to heavy snow accumulations
Tuesday night along the east slopes of the cascades as well as
most of eastern washington and north idaho. Central washington
will see much lighter amounts with little to no snow accumulation
for the deep basin and lewiston area. The system will also bring
a potential for high winds in the cascades... Waterville plateau... And
western reaches of the columbia basin. Expect dry weather with
occasional fog and seasonable temperatures from Thursday through
the weekend.

Discussion
Evening update: quite a few changes for the evening update
tonight. First and foremost was the decision to issue a high wind
watch for the east slopes of the cascades into the western
columbia basin. The upcoming pattern is a familiar pattern for
breaking mountain waves as a strong upper-level jet intersects the
cascade barrier. We compared this event to other high wind events
and could see some resemblance yet also some differences.

With these style of breaking mountain waves... They carry moderate
uncertainty but potential for high impacts if they occur. Needless
to say, there is growing concern for wind gusts between 50-60 mph
and potentially higher for areas of southern chelan county,
wenatchee area, across the waterville plateau, and into southern
grant county. Winds in excess of 60 to 70 mph will be likely on
the exposed ridgetops in southern chelan county.

Second, we have expanded the winter storm watch to include the
coeur d alene area southward toward the idaho palouse. 00z
guidance has come in with slightly higher snow amounts which
suggest 4" is becoming more certain and potential for amounts near
6" or higher possible. I did not include the idaho palouse at this
time with the transition toward rain expected sooner around
pullman and moscow limiting snow to 3" or so... But this is
something we will look into closer with the overnight package.

As for current weather... Freezing fog is not developing as
expansive as expected. The arrival of the mid and high clouds
filling in from the west will likely continue to retard the
development and the main threat for low clouds and fog will remain
over the far eastern third of wa and N id. Sb

Aviation
06z tafs: boundary layer winds are beginning to shift to the
south and low clouds near pullman are quickly migrating northward
toward spokane and coeur d alene. With a lack of obs or cams in
this activity, there is some uncertainty how low restrictions will
become when this arrives in the next 1-2 hours. Otherwise... .Mid
and high clouds are expanding inland as a weak wave tracks into
wrn wa. This will bring a chance for very light snow across NE wa
and N id aft 15z then a stronger and wetter system begins to
moisten from top down after 20z... With -sn sn expected to develop
around 00z and continue through 06z bringing lifr ifr conditions
and snow accumulations at the terminals except klws. Strong winds
will be possible at keat after 06z. Sb

Preliminary point temps pops
Spokane 24 34 31 39 26 37 10 20 100 50 0 0
coeur d'alene 25 34 30 39 27 36 10 20 100 80 10 0
pullman 25 35 31 41 31 39 0 20 100 70 20 0
lewiston 29 41 37 47 35 46 0 10 90 60 20 0
colville 20 36 27 41 22 40 10 30 100 50 0 0
sandpoint 25 33 29 37 28 35 10 50 100 90 10 10
kellogg 24 33 29 38 31 37 10 30 100 100 20 10
moses lake 26 36 32 45 29 42 0 50 80 10 0 0
wenatchee 25 35 31 45 32 41 0 30 60 20 0 0
omak 23 33 28 40 27 38 0 30 80 30 0 0

Otx watches warnings advisories
Id... Winter storm watch from Tuesday evening through Wednesday
afternoon for central panhandle mountains.

Winter storm watch from Tuesday evening through Wednesday
morning for coeur d'alene area-northern panhandle.

Wa... High wind watch from late Tuesday night through Wednesday
morning for east slopes northern cascades-moses lake area-
waterville plateau-wenatchee area.

Winter storm watch from Tuesday afternoon through Wednesday
morning for northeast mountains.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WPOW1 - West Point, WA 74 mi35 min SSE 9.9 G 12 42°F 1030.1 hPa (+0.7)35°F
TCNW1 - 9446484 - Tacoma, WA 80 mi35 min 39°F 49°F1030.9 hPa (+1.0)

Wind History for Seattle, Puget Sound, WA, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Stampede Pass, WA37 mi99 minN 010.00 miOvercast26°F21°F84%1029.5 hPa

Wind History from SMP (wind in knots)
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Last 24hr434545363433433444NW7NW4CalmCalmCalmCalm
1 day agoCalmCalmCalmCalmCalm3NE333344CalmCalmCalmW3543NW44454
2 days ago--54CalmSE3Calm464444W866NW8
G16
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G16
5Calm5CalmCalmCalm

Tide / Current Tables for Marysville, Quilceda Creek, Washington
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Marysville
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Tue -- 06:35 AM PST     12.64 feet High Tide
Tue -- 07:47 AM PST     Sunrise
Tue -- 09:01 AM PST     Moonset
Tue -- 12:22 PM PST     5.79 feet Low Tide
Tue -- 04:53 PM PST     Sunset
Tue -- 04:58 PM PST     10.78 feet High Tide
Tue -- 07:07 PM PST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-2.5-0.91.85.28.511.112.412.611.710.28.36.75.967.28.810.210.810.38.86.641.3-1

Tide / Current Tables for Everett, Washington
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Everett
Click for Map
Tue -- 06:26 AM PST     13.04 feet High Tide
Tue -- 07:47 AM PST     Sunrise
Tue -- 09:00 AM PST     Moonset
Tue -- 11:52 AM PST     6.44 feet Low Tide
Tue -- 04:49 PM PST     11.12 feet High Tide
Tue -- 04:53 PM PST     Sunset
Tue -- 07:07 PM PST     Moonrise
Tue -- 11:50 PM PST     -2.46 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-2.2-0.136.49.611.812.912.911.810.18.26.86.478.39.710.811.110.38.55.930.1-1.9

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 Spokane, 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.