Tuesday, November13, 2018 L-36.com


Marine Weather and Tides
Ronald, 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 7:01AMSunset 4:31PM Monday November 12, 2018 10:41 PM PST (06:41 UTC) Moonrise 11:43AMMoonset 8:42PM Illumination 27% Phase: Waxing Crescent; Moon at 5 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- 837 Pm Pst Mon Nov 12 2018
Tonight..S wind 10 to 15 kt. Wind waves 2 ft or less. Areas of fog after midnight.
Tue..S wind 10 to 20 kt. Wind waves 1 to 3 ft. Areas of fog in the morning.
Tue night..S wind 10 to 20 kt rising to 15 to 25 kt after midnight. Wind waves 2 to 4 ft. A chance of rain.
Wed..S wind 10 to 20 kt becoming 5 to 15 kt in the afternoon. Wind waves 1 to 3 ft.
Wed night..S wind to 10 kt. Wind waves 1 ft or less.
Thu..S wind to 10 kt becoming 5 to 15 kt in the afternoon. Wind waves 2 ft or less.
Thu night..S wind 5 to 15 kt in the evening becoming light. Wind waves 2 ft or less.
Fri..N wind to 10 kt. Wind waves 1 ft or less.
Sat..N wind to 10 kt. Wind waves 1 ft or less.
PZZ100 837 Pm Pst Mon Nov 12 2018
Synopsis for the northern and central washington coastal and inland waters..Offshore flow will persist tonight with high pressure inland and lower pressure offshore. A weak front will cross the area Tuesday night into Wednesday for brief onshore flow. A second weak system will clip the area on Thursday. Offshore flow will return this weekend.


7 Day Forecast for Marine Location Near Ronald, WA
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location: 47.25, -121.08     debug


Area Discussion for - Pendleton, OR
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Fxus66 kpdt 130506 aaa
afdpdt
area forecast discussion... Updated
national weather service pendleton or
906 pm pst Mon nov 12 2018
updated aviation discussion

Update An upper level ridge is moving over eastern wa and or
tonight. A cold pool has formed under strong surface inversions
in the lower columbia basin. Fog and stratus has formed in the
stagnant air trapped under the inversions. Mostly clear skies
cover the area above the cold pool. The Sun angle is too low this
time of year to provide enough daytime heating to break the
inversions in the afternoon so expect the cold pool to persist
until a front brings enough wind to disturb the cold pool. Due to
the cold pool I lowered high temperatures in the columbia basin
tomorrow to make the highs similar to today. I also increased sky
cover in stratus and fog covered areas. The rest of the area will
have cold nights with wide diurnal swings to warm afternoons.

Coonfield

Aviation 06z tafs... Fog and or low stratus has spread over most
of the lower columbia basin and gorge with lifr to MVFR conditions.

Conditions could improve slightly tomorrow. Outside of the
fog stratus increasing high clouds expected. Light winds will
continue through tomorrow. 76

Prev discussion issued 240 pm pst Mon nov 12 2018
short term... Tonight through Thursday. A ridge of high pressure
dominated the areas weather with dry conditions and created an
inversion that produced fog in and near the columbia basin. The
patchy freezing fog had expanded into the foothills of the blue
mountains... Ykm and kittitas valleys and is forecast to move into
north central oregon even more tonight. This pattern will persist
into Tuesday and the afternoon temperatures will struggle to
climb out of the 30s in the fog. Elsewhere high temps are forecast
in the 40s and 50s. A weather system will move into the pacnw
Wednesday and spread showers to the wa or cascades and blue
mountains. In addition sfc winds increase and the fog is expected
to decrease by Wednesday afternoon and high temps should rebound
into Thursday. As the system moves away from the area... Drier
conditions can be expected but showers will linger along the
washington cascades.

Long term... Thursday night through Monday... Good model consensus
for the long term with ensemble support. Amplifying ridge
approaching the west coast with a short-wave trough with surface
cold front sliding south across the pacnw down the front side of the
ridge and may bring a few mountain showers Thu night and Friday.

Enough mixing with the system passage may help to scourge out the
fog stratus in the columbia basin, but do keep some overnight and
morning patchy fog for valleys and basins. For the weekend the
overall pattern is looking like the strong ridge settling over the
pacnw that will block and split the storm track with the polar jet
well off to our north and a cut-off low diving south into
california. With increasing subsidence and strengthening low level
inversion under the ridge and reduced mixing and light winds, expect
fog stratus to develop and expand in coverage over the weekend into
early next week. The time of the year where the Sun angle is not
strong enough to burn off the fog stratus in the daytime. Have
trended high temps down in the columbia basin for the end of the
long term to reflect this. May need to be further adjusted down if
confidence increases. Mountains will see above normal temps above
the stratus and inversions with colder temps in the columbia basin

Preliminary point temps pops
Pdt 24 30 27 44 0 0 0 10
alw 26 32 32 45 0 0 0 20
psc 26 36 31 42 0 0 10 10
ykm 23 36 28 43 0 0 20 20
hri 25 37 29 44 0 0 0 10
eln 23 40 27 42 0 0 20 30
rdm 12 48 26 56 0 0 0 20
lgd 24 46 30 50 0 0 0 10
gcd 25 51 28 54 0 0 0 10
dls 29 37 36 43 0 0 20 30

Pdt watches warnings advisories
Or... None.

Wa... Air stagnation advisory until 11 am pst Tuesday for waz027.

76 76 76


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TCNW1 - 9446484 - Tacoma, WA 71 mi42 min 42°F 53°F1028.7 hPa (-0.0)
TCMW1 - 9446482 - Tacoma Met, WA 71 mi42 min SE 1.9 G 2.9
EBSW1 - 9447130 - Seattle, WA 71 mi42 min NW 1 G 1.9 50°F 53°F1028.3 hPa (-0.0)

Wind History for Seattle, Puget Sound, WA, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Stampede Pass, WA14 mi1.8 hrsE 710.00 miFair28°F23°F81%1034.9 hPa

Wind History from SMP (wind in knots)
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Last 24hr5565E7655E7E76E7566446555NE7E7E7
1 day agoCalmE3CalmCalm434344NE33543335445445
2 days ago4343334SW3CalmW3SW3W3W3CalmCalmCalm44W4CalmCalmCalmCalmCalm

Tide / Current Tables for Des Moines, Washington
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Des Moines
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Tue -- 02:08 AM PST     0.30 feet Low Tide
Tue -- 07:11 AM PST     Sunrise
Tue -- 09:47 AM PST     11.78 feet High Tide
Tue -- 12:29 PM PST     Moonrise
Tue -- 03:36 PM PST     6.97 feet Low Tide
Tue -- 04:35 PM PST     Sunset
Tue -- 07:46 PM PST     8.57 feet High Tide
Tue -- 09:44 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.510.30.72.14.26.58.810.511.511.811.310.28.97.77.177.47.98.48.68.27.25.9

Tide / Current Tables for Duwamish Waterway, Washington
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Duwamish Waterway
Click for Map
Tue -- 02:11 AM PST     0.29 feet Low Tide
Tue -- 07:11 AM PST     Sunrise
Tue -- 09:43 AM PST     11.09 feet High Tide
Tue -- 12:30 PM PST     Moonrise
Tue -- 03:39 PM PST     6.55 feet Low Tide
Tue -- 04:35 PM PST     Sunset
Tue -- 07:42 PM PST     8.07 feet High Tide
Tue -- 09:43 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.410.30.623.96.18.31010.911.110.69.68.47.36.76.66.97.57.987.66.75.5

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 Pendleton, OR (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.