Saturday, November17, 2018 L-36.com


Marine Weather and Tides
Leavenworth, 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 7:08AMSunset 4:24PM Saturday November 17, 2018 3:15 PM PST (23:15 UTC) Moonrise 2:22PMMoonset 12:41AM Illumination 74% 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- 245 Pm Pst Sat Nov 17 2018
Tonight..N wind 10 to 20 kt becoming 5 to 15 kt after midnight. Wind waves 1 to 3 ft. Patchy fog after midnight.
Sun..N wind to 10 kt. Wind waves 1 ft or less. Areas of fog in the morning.
Sun night..N wind to 10 kt becoming S after midnight. Wind waves 1 ft or less. Patchy fog after midnight.
Mon..Light wind. Wind waves less than 1 ft.
Mon night..Light wind becoming S to 10 kt after midnight. Wind waves 1 ft or less.
Tue..S wind to 10 kt. Wind waves 1 ft or less.
Tue night..S wind to 10 kt in the evening becoming light. Wind waves 1 ft or less.
Wed..SE wind to 10 kt becoming s. Wind waves 1 ft or less.
Thu..S wind to 10 kt. Wind waves 1 ft or less.
PZZ100 245 Pm Pst Sat Nov 17 2018
Synopsis for the northern and central washington coastal and inland waters..Offshore flow will prevail through early next week with high pressure east of the cascades. The next frontal system will approach the region on Tuesday then split and weaken as it moves inland on Wednesday.


7 Day Forecast for Marine Location Near Leavenworth, WA
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location: 47.7, -120.91     debug


Area Discussion for - Spokane, WA
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Fxus66 kotx 172249
afdotx
area forecast discussion
national weather service spokane wa
249 pm pst Sat nov 17 2018

Synopsis
The majority of the inland northwest will enjoy sunshine this
weekend. Lowland fog and clouds will likely become more prevalent
Monday and Tuesday. The weather pattern will become more active
starting Wednesday, just in time for thanksgiving travel.

Snow in the mountains is expected, possibly impacting cascade
mountain pass travel.

Discussion
Tonight: the inland northwest experienced a push of dry air
overnight that continued into the day today. Surface dewpoints
over the majority of eastern washington and northern idaho have
fallen into the lower to mid 20s. Our low level air mass should be
dry enough that the majority of our region should remain free of
fog overnight. However, the lewiston-clarkston valley and up the
clearwater river will have a good chance of fog and low clouds
again tonight. Surface dewpoints remain in the lower to mid 30s in
these areas that are sheltered from our dry northeast winds.

Sunday: there should be an abundance of sunshine on Sunday. The
day will begin chilly with most lowland communities in the inland
northwest in the 20s at sunrise. Afternoon highs have been hedged
toward the warmer GFS mos guidance since warmer temps verified
better this afternoon (sat) in areas that received sunshine.

Monday and Tuesday: low clouds and fog will likely become more
widespread early in the week as our low level air mass modifies.

Look for surface dewpoints to increase sun, mon, and tue. As this
occurs fog and low clouds will likely develop in the lower
columbia basin around walla walla and tri cities Sunday and Sunday
night. By Monday and Tuesday, gloomy conditions will likely expand
northward into moses lake, wenatchee, and grand coulee. The
valleys of northeast washington will also have a high probability
of generating fog and low clouds which may expand into spokane and
across the west plains. Gkoch
Wednesday and thanksgiving: the ridge axis has moved east over
the continental divide. This will open up the pacific northwest to
an increased chance of precipitation beginning Wednesday. Have
slowed down the timing a bit for the start of rain and snow.

Through the day precipitation won't make it much past the
waterville plateau or moses lake. Then during the evening and
overnight hours it will move east into eastern wa and north id. A
series of weather disturbances will move through the southwest
flow, which will keep mainly mountain snow and valley rain going
through Thursday night.

Current forecast thinking is accumulating snow will be confined to
the mountains. The main impact would be along highway 2 from
cashmere to stevens pass, and highway 20 impacting sherman pass
and the north cascades highway. Mountain accumulations would
generally be 1 to 3 inches. The northern valleys may see snow
during the early morning hours on Thursday, but it will likely
only stick to grassy surfaces.

Late Thursday night into Friday morning winds will increase as a
stronger weather disturbance moves in. This will keep the
atmosphere more mixed, and keep many valley temps at or above
freezing through the night. Mainly our known 'colder' locations
such as the methow valley, republic, deer park will be below
freezing.

Friday and Saturday: winds will continue through the morning and
early afternoon hours, mainly impacting the columbia basin,
palouse and spokane area. Precipitation will be on the decrease
through the day Friday with the best precip chances by Saturday
mainly across the cascades and north id panhandle. Temperatures
will lower a few degrees from earlier in the week. Highs in the
mid 30s to mid 40s and lows in the mid 20s to lower 30s is
expected. Nisbet

Aviation
18z tafs: visibility and ceiling improvements at klws have been
pushed back into the early to mid afternoon. Satellite imagery
and web cameras at 17z show that the fog bank has become quite
extensive in the clearwater and snake river valleys. Fog will
eventually dissipate as the surrounding terrain warms into the
40s this afternoon. Shallow fog has been added early Sunday
morning to the kgeg, ksff, and kmwh tafs. Northeast winds in and
just above the boundary layer will subside overnight. Dewpoints
will be dry, border line for fog, so confidence is relatively low.

Gkoch

Preliminary point temps pops
Spokane 25 41 26 43 25 43 0 0 0 0 0 0
coeur d'alene 23 41 25 44 25 45 0 0 0 0 0 0
pullman 25 45 28 47 28 48 0 0 0 0 0 0
lewiston 27 40 29 43 29 48 0 0 0 0 0 0
colville 26 43 26 40 25 40 0 0 0 0 0 0
sandpoint 23 41 25 43 25 44 0 0 0 0 0 0
kellogg 26 42 27 45 28 46 0 0 0 0 0 0
moses lake 21 43 22 39 23 41 0 0 0 0 0 0
wenatchee 26 43 27 42 27 39 0 0 0 0 0 0
omak 24 40 25 44 24 42 0 0 0 0 0 0

Otx watches warnings advisories
Id... Air stagnation advisory from 7 am Sunday to 1 pm pst Wednesday
for central panhandle mountains-coeur d'alene area-idaho
palouse-lewis and southern nez perce counties-lewiston area-
northern panhandle.

Wa... Air stagnation advisory from 7 am Sunday to 1 pm pst Wednesday
for east slopes northern cascades-lower garfield and asotin
counties-moses lake area-northeast blue mountains-northeast
mountains-okanogan highlands-okanogan valley-spokane area-
upper columbia basin-washington palouse-waterville plateau-
wenatchee area.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
EBSW1 - 9447130 - Seattle, WA 76 mi33 min NNW 1.9 G 9.9 53°F 53°F1024.9 hPa
WPOW1 - West Point, WA 81 mi75 min N 17 G 18 48°F 1025.9 hPa (-1.4)39°F
TCNW1 - 9446484 - Tacoma, WA 85 mi33 min 53°F 53°F1024.7 hPa

Wind History for Seattle, Puget Sound, WA, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Stampede Pass, WA36 mi79 minVar 310.00 miFair36°F25°F64%1026.8 hPa

Wind History from SMP (wind in knots)
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Last 24hrCalmCalmCalmCalm3Calm43333543CalmCalm44465453
1 day agoW7NW86W7466456455W65433Calm3SW4CalmCalmCalm
2 days agoNW8
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NW75555343334NW633Calm--------Calm5

Tide / Current Tables for Everett, Washington
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Everett
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Sat -- 12:46 AM PST     Moonset
Sat -- 05:44 AM PST     3.21 feet Low Tide
Sat -- 07:18 AM PST     Sunrise
Sat -- 12:50 PM PST     10.97 feet High Tide
Sat -- 02:27 PM PST     Moonrise
Sat -- 04:28 PM PST     Sunset
Sat -- 07:34 PM PST     4.05 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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7.36.96.35.34.23.43.23.84.96.58.29.810.71110.59.47.96.24.94.24.14.65.66.6

Tide / Current Tables for Marysville, Quilceda Creek, Washington
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Marysville
Click for Map
Sat -- 12:46 AM PST     Moonset
Sat -- 06:13 AM PST     2.89 feet Low Tide
Sat -- 07:18 AM PST     Sunrise
Sat -- 12:59 PM PST     10.64 feet High Tide
Sat -- 02:27 PM PST     Moonrise
Sat -- 04:28 PM PST     Sunset
Sat -- 08:04 PM PST     3.64 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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76.86.25.34.33.42.93.14.15.67.49.110.210.610.39.486.44.943.63.94.86

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 Spokane, WA (18,4,5,8)
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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.